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EN010103-001137-NZT DCO 6.4.46 ES Vol III Appendix 24A Planned Development and Development Allocations.pdf:2: weight). Associated dredging operations to create berth. and the Harbour Facilities will be operating at full

EN010103-001137-NZT DCO 6.4.46 ES Vol III Appendix 24A Planned Development and Development Allocations.pdf:13: electrical substation), capital dredging (to deepen the operation by 2023 (an approximately three-year

EN010103-001137-NZT DCO 6.4.46 ES Vol III Appendix 24A Planned Development and Development Allocations.pdf:13: pocket), offshore disposal of dredged sediments and be constructed at all if market conditions do not

EN010103-002421-NZT DCO 9.42 - Comments on D9 Submissions & Additional Submissions - Oct 2022 (D11).pdf:11: “disposal” means the deposit of dredged

EN010103-002421-NZT DCO 9.42 - Comments on D9 Submissions & Additional Submissions - Oct 2022 (D11).pdf:12: for “dredge arisings”.

EN010103-002421-NZT DCO 9.42 - Comments on D9 Submissions & Additional Submissions - Oct 2022 (D11).pdf:12: “dredge arising” means inert material of

EN010103-002421-NZT DCO 9.42 - Comments on D9 Submissions & Additional Submissions - Oct 2022 (D11).pdf:12: natural origin, produced during dredging.

EN010103-002421-NZT DCO 9.42 - Comments on D9 Submissions & Additional Submissions - Oct 2022 (D11).pdf:12: The term “dredge arising” relates to

EN010103-002421-NZT DCO 9.42 - Comments on D9 Submissions & Additional Submissions - Oct 2022 (D11).pdf:12: restricts “dredging arisings” to the inert

EN010103-002421-NZT DCO 9.42 - Comments on D9 Submissions & Additional Submissions - Oct 2022 (D11).pdf:12: dredging. The definition above will be

EN010103-002421-NZT DCO 9.42 - Comments on D9 Submissions & Additional Submissions - Oct 2022 (D11).pdf:12: Part 2 (11)(3)© – The MMO recommend 11(3)© states “deposit of dredge arisings”.

EN010103-002421-NZT DCO 9.42 - Comments on D9 Submissions & Additional Submissions - Oct 2022 (D11).pdf:12: a definition is included under Part 1 for The definition of “dredge arisings” already

EN010103-002421-NZT DCO 9.42 - Comments on D9 Submissions & Additional Submissions - Oct 2022 (D11).pdf:49: of this Appendix). A pocket would be dredged for the outfall head, which would then

EN010103-002421-NZT DCO 9.42 - Comments on D9 Submissions & Additional Submissions - Oct 2022 (D11).pdf:49: be secured within the dredge pocket by pin piling. A quantity of rock armour

EN010103-002421-NZT DCO 9.42 - Comments on D9 Submissions & Additional Submissions - Oct 2022 (D11).pdf:49: either by truncation and removal of features and deposits through dredging, or

EN010103-002552-NZT DCO 5.13 - HRA Report (Clean) - Nov 2022 (D12) (1).pdf:44: survey, dredging and discharge points and any associated movements of marine

EN010103-002552-NZT DCO 5.13 - HRA Report (Clean) - Nov 2022 (D12) (1).pdf:46: the Proposed Development. This includes potential dredging (removal of sediment)

EN010103-002552-NZT DCO 5.13 - HRA Report (Clean) - Nov 2022 (D12) (1).pdf:46: However, the dredging activities are unlikely to result in temporary changes to the

EN010103-002552-NZT DCO 5.13 - HRA Report (Clean) - Nov 2022 (D12) (1).pdf:46: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-002552-NZT DCO 5.13 - HRA Report (Clean) - Nov 2022 (D12) (1).pdf:80: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-002552-NZT DCO 5.13 - HRA Report (Clean) - Nov 2022 (D12) (1).pdf:81: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-002552-NZT DCO 5.13 - HRA Report (Clean) - Nov 2022 (D12) (1).pdf:81: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:84: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:86: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:86: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:86: 5. The substances authorised for disposal include dredge arisings.

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:89:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:89:characterisation of material proposed for dredging.

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:89:applications and must be carried out at least 6 weeks prior to the commencement of dredging

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:89: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:90: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:90: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:92:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:94: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:96: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:96: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:97: 5. The substances authorised for disposal include dredge arisings.

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:102:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:102:characterisation of material proposed for dredging.

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:102:applications and must be carried out at least 6 weeks prior to the commencement of dredging

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:102: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:102: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:102: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002080-NZT DCO 2.1 - Draft DCO (Comparison with (D5) August 2022) - August 2022 (D6).pdf:105:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-002528-NZT DCO 2.2 - Explanatory Memorandum (Clean) - Nov 2022 (D12).pdf:50: • Any dredging required to support the specific components above.

EN010103-002528-NZT DCO 2.2 - Explanatory Memorandum (Clean) - Nov 2022 (D12).pdf:50: • Any dredging required to support the specific components above.

EN010103-002258-NZT DCO - 5.13 - HRA (Tracked) - Sept 2022(D8).pdf:46: geophysical survey, dredging and discharge points and any associated movements of

EN010103-002258-NZT DCO - 5.13 - HRA (Tracked) - Sept 2022(D8).pdf:48: surrounding the Proposed Development. This includes potential dredging (removal

EN010103-002258-NZT DCO - 5.13 - HRA (Tracked) - Sept 2022(D8).pdf:48: km1km below MLWS. Therefore, this activity isHowever, the dredging activities are

EN010103-002258-NZT DCO - 5.13 - HRA (Tracked) - Sept 2022(D8).pdf:48: be directly impacted as a result of dredging for the outfall head approximately 1km

EN010103-002258-NZT DCO - 5.13 - HRA (Tracked) - Sept 2022(D8).pdf:81: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-002258-NZT DCO - 5.13 - HRA (Tracked) - Sept 2022(D8).pdf:82: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-002258-NZT DCO - 5.13 - HRA (Tracked) - Sept 2022(D8).pdf:82: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-002254-NZT DCO 2.2 - Explanatory Memorandum (Clean) - Sept 2022(D8).pdf:50: • Any dredging required to support the specific components above.

EN010103-002254-NZT DCO 2.2 - Explanatory Memorandum (Clean) - Sept 2022(D8).pdf:51: • Any dredging required to support the specific components above.

EN010103-002323-NZT DCO 9.36 - Nutrient Nitrogen Briefing Paper Tracked Oct 2022 (D9).pdf:30: above background in some locations but these are confined to the dredged

EN010103-001119-NZT DCO 6.4.20 ES Vol III Appendix 12C Preliminary Ecological Appraisal Part 1.pdf:20: dredging and culverting. The Fleet is at its most natural immediately

EN010103-001117-NZT DCO 6.4.20 ES Vol III Appendix 12C Preliminary Ecological Appraisal Part 4.pdf:7:TN6 Fleet River. This section of river was dredged and vegetation on banks cut

EN010103-001117-NZT DCO 6.4.20 ES Vol III Appendix 12C Preliminary Ecological Appraisal Part 4.pdf:7:present in areas where dredging has not taken place.

EN010103-001117-NZT DCO 6.4.20 ES Vol III Appendix 12C Preliminary Ecological Appraisal Part 4.pdf:7:Both had been recently dredged and held few aquatic or emergent plant species.

EN010103-001582-NZT DCO 5.3 - Planning Statement - May 2022 (Tracked).pdf:29: Associated dredging waste water works

EN010103-001582-NZT DCO 5.3 - Planning Statement - May 2022 (Tracked).pdf:38:  Safeguarding of Port and Rail Facilities (Marine Dredged Sand & Gravel

EN010103-002293-Marine Management Organistation - Comments on any other information submitted at Deadline 8.pdf:3: (1) for “dredge arisings”.

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:41: to support various recent dredging proposals and developments around the

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:41: dredged material. These give an indication of sediment quality in the Tees

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:53: dredged channel in the

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:58: poisoning from disturbed dredged

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:66: the dredged channel, although the

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:66: plume (for DIN) to enter the mouth of the estuary, at depth within the dredged

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:70: is pulled into the dredged channel only).No Risk

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:78: • Preliminary dredge;

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:83: • Dredging of a pocket for emplacement of the outfall head;

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:110: dredged channel at the mouth of the estuary.

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:110: small areas within the Tees Estuary at Tees Mouth, specifically in the dredged

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:110: the lower half of the water column of the dredged channel of the Tees Estuary

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:114: the mouth of the estuary, in the dredged

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:120: effect is concentrated in the lower half of the water column of the dredged

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:141: to support various recent dredging proposals and developments around the

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:141: disposal of dredged material. These give an indication of sediment quality in

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:141: dredged material below Action Level 1 are of no concern and are unlikely to

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:141: However, dredged material with contaminant levels above Action Level 2 is

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:141:D.1.2 Samples were collected in 2017 and 2018 to support dredging at Seaton Port

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:142: dredged samples from the Tees Approach Channel were generally less than

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:188: Mouth specifically in the dredged channel of the Tees where average DIN concentrations

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:188: this effect is concentrated in the lower half of the water column of the dredged channel of the

EN010103-002424-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Tracked).pdf:190: Mouth area by up to 2.5% within the dredged channel of the river in the bottom half of the water

EN010103-002046-NZT DCO 2.2 - Explanatory Memorandum (Tracked) August 2022 (D6).pdf:50: • Any dredging required to support the specific components above.

EN010103-002046-NZT DCO 2.2 - Explanatory Memorandum (Tracked) August 2022 (D6).pdf:51: • Any dredging required to support the specific components above.

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:4:Depending on location and timings of dredgings, the Applicant must consider the

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:4:Dredging

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:4:If the proposed dredging operations were to occur concurrently with other

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:4:dredging operations, we strongly recommend that these dredging activities avoid

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:4:dissolved oxygen levels are monitored prior to dredging activity and during

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:4:dredging activity at regular intervals and shared with the EA.

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:19:suspended sediments: where dredging and disposal is required, pre-construction

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:19:depending on location and timings of dredgings, they must consider the impacts

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:20:Dredging

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:20:Issue: 14.9.17 states that should dredging works occur concurrently within the

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:20:impacts to migratory fish, if Net Zero dredging’s occur at same time as other

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:20:dredging operations within the Tees estuary, and cause barriers to migration.

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:20:Solution: If the proposed dredging operations are to occur concurrently with other

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:20:dredging operations, we strongly recommend that these dredging activities avoid

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:20:We also recommend that dissolved oxygen levels are monitored prior to dredging

EN010103-001246-EA_NZT_OFFICIAL_171221_Redacted.pdf:20:activity and during dredging activity at regular intervals and shared with the EA. If

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:4: Bay) and any localised dredging required to

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:9: pipeline to the Tees Bay) and any localised dredging required to support the specific

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:10: • planning and licensing for marine construction, deposits and dredging that may

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:20: design, including piling, dredging and the Tees crossing, and c) cumulative effects.

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:23: EW noted the associated dredging and disposal works which may, as a worst-case, be

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:23: regular Teesport dredging. EW explained that individual sampling results had been

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:24: Marine potential cofferdam to create a safe/dry working area and possibly preparatory dredge. Does

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:24: Dredging & particularly sensitive in terms of Ecology; EW agreed that there are several areas of primary

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:24: works associated with the worst-case (i.e. dredging, HDD, open-cut trenching etc.). EW asked

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:30: confirmed that we understand that should dredging or works capable of

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:30: seems appropriate and that there is a lot of dredging which is taking

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:44: We understand that should dredging be required (unlikely), further

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:51: is an active dredge and disposal licence just outside

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:60:and Refinement removed the need for a preparatory dredge as we think that

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:75:Preparatory Dredge ✓ 

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:98:International Maritime Organisation (IMO). Sampling of Dredged Material – Guidelines for the Sampling and Analysis of

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:98:Dredged Material Intended for Disposal at Sea 2005.

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:100: • Intake: EW confirmed that the need for a preparatory dredge has

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:141:04 Dredging RG discussed the location of preparatory dredging, stating that, as set out in

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:141: Tees no longer forms part of the development. Dredging would only occur at

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:141: the South Bank project as there would be no capital dredging as part of this marine environment

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:141:08 Cumulative Effects RG reiterated that project activities such as piling and dredging were small in MMO to review

EN010103-001586-NZT DCO 8.4 - MMO SoCG - May 2022.pdf:142: references. RG wanted to reiterate that the dredging will be small in extent within formal response

EN010103-002630-NZT DCO 3.3 - Funding Statement - Appendix 6 - NG - Nov 2022 (D13).pdf:91: IT Group S.A. Law School. Dredge and Dock Co. 26 July 2021.

EN010103-001652-Climate Emergency Policy and Planning - Written Representations.pdf:227:by dredging, wind farms, shipyards, coastal work to combat erosion, for example, moles and jetties.

EN010103-000902-NZT DCO 6.2.10 ES Vol I Chapter 10 Geology and Contaminated Land.pdf:6: Marine Dredged Sand and Gravel Safeguarded Wharves

EN010103-000902-NZT DCO 6.2.10 ES Vol I Chapter 10 Geology and Contaminated Land.pdf:24: May 2010). Safeguarded marine dredged sand and gravel (shallow

EN010103-000902-NZT DCO 6.2.10 ES Vol I Chapter 10 Geology and Contaminated Land.pdf:31: Marine Dredged Sand Connection Corridors (Local to Teesport) Minerals and Waste Development Minerals

EN010103-000902-NZT DCO 6.2.10 ES Vol I Chapter 10 Geology and Contaminated Land.pdf:46: Marine Dredged Waste Core Strategy DPD.

EN010103-002248-NZT DCO 9.36 - Nutrient Nitrogen Briefing Paper - Sept 2022(D8).pdf:123:which included the Philips Inset Dock and dredged areas of the Tees river channel.

EN010103-002189-Marine Management Organistation - Comments on any other information submitted at Deadline 6.pdf:3: taking place for Work No 5B allow disposal of up to 500m3 of dredge arisings at

EN010103-002247-NZT DCO 9.35 - Applicants' Comments on Deadline 7 Submissions - Sept 2022(D8).pdf:9: up to 500m3 of dredge arisings

EN010103-002247-NZT DCO 9.35 - Applicants' Comments on Deadline 7 Submissions - Sept 2022(D8).pdf:11: definitions under Part 1 of the removal or deposit of dredge

EN010103-001020-NZT DCO 6.4.5 ES Vol III Appendix 5A - Framework CEMP.pdf:34:  Should any preparatory dredging be required, material shall be

EN010103-001020-NZT DCO 6.4.5 ES Vol III Appendix 5A - Framework CEMP.pdf:35: receive material similar to that which is likely at the proposed dredge

EN010103-001020-NZT DCO 6.4.5 ES Vol III Appendix 5A - Framework CEMP.pdf:35: locations. Disposal of dredged material would be undertaken in

EN010103-001979-NZT DCO 6.4.5 ES Vol III Appendix 5A - Framework CEMP (Tracked) August 2022 (D5).pdf:38: • Should any preparatory dredging be required, material shall be

EN010103-001979-NZT DCO 6.4.5 ES Vol III Appendix 5A - Framework CEMP (Tracked) August 2022 (D5).pdf:39: receive material similar to that which is likely at the proposed dredge

EN010103-001979-NZT DCO 6.4.5 ES Vol III Appendix 5A - Framework CEMP (Tracked) August 2022 (D5).pdf:39: locations. Disposal of dredged material would be undertaken in

EN010103-001334-NZTDCO 6.3.12 Rev 2 ES Addendum Vol II Figure 7-1 Local Plan Areas.pdf:1: MWC4, MWC5 Marine dredged Sand and

EN010103-000904-NZT DCO 6.2.20 ES Vol I Chapter 20 Socio-economics.pdf:12: identified, L/2019/00220/1 is an active dredge

EN010103-000904-NZT DCO 6.2.20 ES Vol I Chapter 20 Socio-economics.pdf:22:  35097/110302/2 (Dredging Licence – PD Teesport Limited);

EN010103-000904-NZT DCO 6.2.20 ES Vol I Chapter 20 Socio-economics.pdf:22:  MLA/2015/00334/4 (Dredging Licence – Able UK Limited);

EN010103-000904-NZT DCO 6.2.20 ES Vol I Chapter 20 Socio-economics.pdf:22:  MLA/2019/00151 (Proposed Dredge Footprint, Tees/Hartlepool - Inter

EN010103-000904-NZT DCO 6.2.20 ES Vol I Chapter 20 Socio-economics.pdf:25:  preparatory dredging;

EN010103-000904-NZT DCO 6.2.20 ES Vol I Chapter 20 Socio-economics.pdf:25:  supporting vessel activities (jack-up barge(s), dredger(s), work boat(s)

EN010103-001064-NZT DCO 6.4.11 ES Vol III Appendix 9C WFD Assessment.pdf:37: to support various recent dredging proposals and developments around the

EN010103-001064-NZT DCO 6.4.11 ES Vol III Appendix 9C WFD Assessment.pdf:37: dredged material. These give an indication of sediment quality in the Tees

EN010103-001064-NZT DCO 6.4.11 ES Vol III Appendix 9C WFD Assessment.pdf:69: • Preliminary dredge;

EN010103-001064-NZT DCO 6.4.11 ES Vol III Appendix 9C WFD Assessment.pdf:72: • Dredging of a pocket for emplacement of the outfall head;

EN010103-001064-NZT DCO 6.4.11 ES Vol III Appendix 9C WFD Assessment.pdf:118: to support various recent dredging proposals and developments around the

EN010103-001064-NZT DCO 6.4.11 ES Vol III Appendix 9C WFD Assessment.pdf:118: disposal of dredged material. These give an indication of sediment quality in

EN010103-001064-NZT DCO 6.4.11 ES Vol III Appendix 9C WFD Assessment.pdf:118: dredged material below Action Level 1 are of no concern and are unlikely to

EN010103-001064-NZT DCO 6.4.11 ES Vol III Appendix 9C WFD Assessment.pdf:118: However, dredged material with contaminant levels above Action Level 2 is

EN010103-001064-NZT DCO 6.4.11 ES Vol III Appendix 9C WFD Assessment.pdf:118:D.1.2 Samples were collected in 2017 and 2018 to support dredging at Seaton Port

EN010103-001064-NZT DCO 6.4.11 ES Vol III Appendix 9C WFD Assessment.pdf:119: dredged samples from the Tees Approach Channel were generally less than

EN010103-001152-NZT DCO 5.1 - Consultation Report.pdf:165: Organisation and Vibration’; 14 ‘Marine Environment’; 20 ‘Socio- considered as part of the ES. The comments made  Removal of preparatory dredge I, Document Ref.

EN010103-001152-NZT DCO 5.1 - Consultation Report.pdf:166: need for the ES to consider an active dredge and sampling and wider characterisation of the Tees

EN010103-001152-NZT DCO 5.1 - Consultation Report.pdf:166: are fully considered.  Removal of preparatory dredge for cofferdam

EN010103-001152-NZT DCO 5.1 - Consultation Report.pdf:171: (i.e. by using CO2 gathering network). comments are detailed and span a number of  Removal of preparatory dredge Conservation;

EN010103-001152-NZT DCO 5.1 - Consultation Report.pdf:172: Z. Consideration to adverse effects from dredging ES; this was agreed as being appropriate at

EN010103-001152-NZT DCO 5.1 - Consultation Report.pdf:174: requirement for a preparatory dredge at the

EN010103-001152-NZT DCO 5.1 - Consultation Report.pdf:174: intake has been removed. Dredging may be

EN010103-001152-NZT DCO 5.1 - Consultation Report.pdf:189: allows for dredging and piling works. The lack

EN010103-001152-NZT DCO 5.1 - Consultation Report.pdf:605:maintenance, construction works, surveys and dredging. As the statutory harbour

EN010103-001152-NZT DCO 5.1 - Consultation Report.pdf:621: dredging works are proposed then the actual position and depth of the pipeline must

EN010103-001152-NZT DCO 5.1 - Consultation Report.pdf:651:the York Potash Harbour Facilities Order 2016 (DCO) permits our client to undertake various dredging and

EN010103-001152-NZT DCO 5.1 - Consultation Report.pdf:651:under our client’s DCO within the consented ‘dredging pocket’. And whether the proposed NZT proposals

EN010103-001152-NZT DCO 5.1 - Consultation Report.pdf:1120: dredging works are proposed then the actual position and depth of the pipeline must

EN010103-000891-NZT DCO 6.2.5 ES Vol I Chapter 5 Construction Programme and Management.pdf:13:  dredging of pocket;

EN010103-000891-NZT DCO 6.2.5 ES Vol I Chapter 5 Construction Programme and Management.pdf:13: within the dredge pocket;

EN010103-000891-NZT DCO 6.2.5 ES Vol I Chapter 5 Construction Programme and Management.pdf:13:  backfill of the dredged pocket around the outfall head;

EN010103-002255-NZT DCO 2.2 - Explanatory Memorandum (Tracked) - Sept 2022(D8).pdf:50: • Any dredging required to support the specific components above.

EN010103-002255-NZT DCO 2.2 - Explanatory Memorandum (Tracked) - Sept 2022(D8).pdf:51: • Any dredging required to support the specific components above.

EN010103-002406-NZT DCO - 9.34 Updated List of Developments - Oct 2022 (D11) (Tracked).pdf:7: Associated dredging waste water works

EN010103-002406-NZT DCO - 9.34 Updated List of Developments - Oct 2022 (D11) (Tracked).pdf:18: Associated dredging operations to create be completed and the Harbour the Harbour facilities will materially new or materially

EN010103-002406-NZT DCO - 9.34 Updated List of Developments - Oct 2022 (D11) (Tracked).pdf:26: capital dredging (to deepen the northern half 7/VC (ES) available shall be

EN010103-002406-NZT DCO - 9.34 Updated List of Developments - Oct 2022 (D11) (Tracked).pdf:26: berth pocket), offshore disposal of dredged

EN010103-001570-NZT DCO 8.28 - Anglo American plc SoCG - May 2022.pdf:6: • Dredging operations within the Crown Estate dredge pocket easement area if

EN010103-001683-Marine Management Organisation - Responses to the ExA’s ExQ1.pdf:23: dredging operations associated with cumulative developments would occur concurrently while

EN010103-001683-Marine Management Organisation - Responses to the ExA’s ExQ1.pdf:28:BIO.1.34 Applicants The EA has requested that if any dredging is to take place, that it should avoid the peak

EN010103-002312-NZT DCO 6.4.49 - ES Vol III Appendix 25A Commitments Register Tracked Oct 2022 (D9).pdf:75: • Should any preparatory dredging be required,

EN010103-002312-NZT DCO 6.4.49 - ES Vol III Appendix 25A Commitments Register Tracked Oct 2022 (D9).pdf:75: disposal site. Disposal of dredged material would

EN010103-002321-NZT DCO 9.36 - Nutrient Nitrogen Briefing Paper (Tracked) Oct 2022 (D9).pdf:30: above background in some locations but these are confined to the dredged

EN010103-002321-NZT DCO 9.36 - Nutrient Nitrogen Briefing Paper (Tracked) Oct 2022 (D9).pdf:134:which included the Philips Inset Dock and dredged areas of the Tees river channel.

EN010103-002321-NZT DCO 9.36 - Nutrient Nitrogen Briefing Paper (Tracked) Oct 2022 (D9).pdf:225: Mouth specifically in the dredged channel of the Tees where average DIN concentrations

EN010103-002321-NZT DCO 9.36 - Nutrient Nitrogen Briefing Paper (Tracked) Oct 2022 (D9).pdf:225: this effect is concentrated in the lower half of the water column of the dredged channel of the

EN010103-002321-NZT DCO 9.36 - Nutrient Nitrogen Briefing Paper (Tracked) Oct 2022 (D9).pdf:227: Mouth area by up to 2.5% within the dredged channel of the river in the bottom half of the water

EN010103-002651-SABIC Protective Provisions 1.pdf:6: (f) details of the method location and extent of any dredging, a technical assessment of the

EN010103-002651-SABIC Protective Provisions 1.pdf:6: likely effect of the dredging on the protected crossing and any mitigation measures which

EN010103-002651-SABIC Protective Provisions 1.pdf:8: 11. —(1) Where excavation of trenches (including excavation by dredging) adjacent to a pipeline

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:83: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:85: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:85: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:85: 5. The substances authorised for disposal include dredge arisings.

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:88:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:88:characterisation of material proposed for dredging.

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:88:applications and must be carried out at least 6 weeks prior to the commencement of dredging

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:88: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:89: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:89: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:91:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:93: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:95: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:95: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:95: 5. The substances authorised for disposal include dredge arisings.

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:99:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:99:characterisation of material proposed for dredging.

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:99:applications and must be carried out at least 6 weeks prior to the commencement of dredging

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:99: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:100: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:100: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002043-NZT DCO 2.1 - Draft DCO August 2022 (D6).pdf:102:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-000901-NZT DCO 6.2.15 ES Vol I Chapter 15 Ornithology.pdf:65: emerge into the subtidal environment dredging/disturbance of sediment

EN010103-000901-NZT DCO 6.2.15 ES Vol I Chapter 15 Ornithology.pdf:96: either drilling from a pit onshore within the PCC Site to a receiver pit dredged

EN010103-002074-NZT DCO 9.28 - Applicants' Responses to Deadline 5 Submissions August 2022 (D6).pdf:78: MC.2.4 The MMO Cumulative modelling of cable The Applicant wishes to clarify that the intended dredged sediment disposal area for Hornsea Four comprises all of the

EN010103-002074-NZT DCO 9.28 - Applicants' Responses to Deadline 5 Submissions August 2022 (D6).pdf:78: suitability of the dredged

EN010103-002074-NZT DCO 9.28 - Applicants' Responses to Deadline 5 Submissions August 2022 (D6).pdf:79: MC.2.6 Applicant Dogger Bank Disposal Area Plan The Applicant wishes to clarify that the intended dredged sediment disposal area for Hornsea Four comprises all of the

EN010103-002074-NZT DCO 9.28 - Applicants' Responses to Deadline 5 Submissions August 2022 (D6).pdf:79: dredged sediment disposal area

EN010103-002074-NZT DCO 9.28 - Applicants' Responses to Deadline 5 Submissions August 2022 (D6).pdf:79: MC.2.7 Applicant Dredged sediment sampling In reference to OSPAR, the Applicant has assumed the MMO is referring to the OSPAR Guidelines for the Management

EN010103-002074-NZT DCO 9.28 - Applicants' Responses to Deadline 5 Submissions August 2022 (D6).pdf:79: The MMO during construction of Dredged Material.

EN010103-002074-NZT DCO 9.28 - Applicants' Responses to Deadline 5 Submissions August 2022 (D6).pdf:79: dredge area during construction, provide details of ‘waste management and disposal arrangements’ as secured via condition 13(1)(d)(iv).

EN010103-001196-NZT DCO 5.13 - HRA Report - Oct 2021 Rev.2.0.pdf:44: survey, dredging and discharge points and any associated movements of marine

EN010103-001196-NZT DCO 5.13 - HRA Report - Oct 2021 Rev.2.0.pdf:45: includes potential dredging (removal of sediment) around the water discharge,

EN010103-001196-NZT DCO 5.13 - HRA Report - Oct 2021 Rev.2.0.pdf:45: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-001196-NZT DCO 5.13 - HRA Report - Oct 2021 Rev.2.0.pdf:74: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-001196-NZT DCO 5.13 - HRA Report - Oct 2021 Rev.2.0.pdf:75: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-001196-NZT DCO 5.13 - HRA Report - Oct 2021 Rev.2.0.pdf:75: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-001015-NZT DCO 6.4.2 ES Vol III Appendix 1B EIA Scoping Opinion Part 1.pdf:38: • any dredging works;

EN010103-001015-NZT DCO 6.4.2 ES Vol III Appendix 1B EIA Scoping Opinion Part 1.pdf:39: dredging activities. The ES should include confirmation of how any

EN010103-001015-NZT DCO 6.4.2 ES Vol III Appendix 1B EIA Scoping Opinion Part 1.pdf:76:Dredging

EN010103-001015-NZT DCO 6.4.2 ES Vol III Appendix 1B EIA Scoping Opinion Part 1.pdf:110: within 10 metres of an AGI (Above Ground Installation), or if any embankment or dredging

EN010103-002000-NZT DCO 2.2 - Explanatory Memorandum - August 2022(D5) - Tracked.pdf:50: • Any dredging required to support the specific components above.

EN010103-002000-NZT DCO 2.2 - Explanatory Memorandum - August 2022(D5) - Tracked.pdf:50: • Any dredging required to support the specific components above.

EN010103-001913-NZT DCO 9.18 - Further information to Historic Environment Questions July 2022 (D4).pdf:25: pocket would be dredged for the outfall head, which would then be

EN010103-001913-NZT DCO 9.18 - Further information to Historic Environment Questions July 2022 (D4).pdf:25: secured within the dredge pocket by pin piling. A quantity of rock armour

EN010103-001913-NZT DCO 9.18 - Further information to Historic Environment Questions July 2022 (D4).pdf:25: dredging, or compaction and crushing of assets through the deposition of

EN010103-001132-NZT DCO 6.4.43 ES Vol III Appendix 18B Cultural Heritage Gazetter.pdf:36:651 Find Spot RIVER TEES Stoneware flagon found whilst dredging Post-medieval

EN010103-002652-Huntsman Protective Provisions.pdf:6: (f) details of the method location and extent of any dredging, a technical assessment of the

EN010103-002652-Huntsman Protective Provisions.pdf:6: likely effect of the dredging on the protected crossing and any mitigation measures which

EN010103-002652-Huntsman Protective Provisions.pdf:8: 11. —(1) Where excavation of trenches (including excavation by dredging) adjacent to a pipeline

EN010103-001469-NZT DCO 2.2 - Explanatory Memorandum (Tracked) - Apr 2022.pdf:58: • Any dredging required to support the specific components above.

EN010103-001469-NZT DCO 2.2 - Explanatory Memorandum (Tracked) - Apr 2022.pdf:59: • Any dredging required to support the specific components above.

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:90: “disposal” means the deposit of dredge arisings at a disposal site carrying reference TY160 –

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:90: “dredge arisings” means inert material of natural origin, produced during dredging;

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:91: proposed for dredging as part of the licenced activities;

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:92: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:92: (iii) the combined total disposal of up to 500m3 of dredge arisings across each of the

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:94: deposit of dredge arisings; and

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:95: from which the removal or deposit of dredge arisings are to be made.

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:96:commencement of dredging activities.

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:96:be submitted to the MMO at least 6 weeks prior to the commencement of dredging activities.

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:96: (4) No dredging and disposal activities may be undertaken until the details of sediment sampling

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:96: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:96: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:99:during dredging is dredge arisings are disposed of within the extent of the Order limits seaward of

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:102: “disposal” means the deposit of dredge arisings at a disposal site carrying reference TY160 –

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:102: “dredge arisings” means inert material of natural origin, produced during dredging;

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:103: proposed for dredging as part of the licenced activities;

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:104: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:104: (iii) the disposal of up to 500m3 of dredge arisings at each of the disposal sites carrying

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:108: deposit of dredge arisings; and

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:108: from which the removal or deposit of dredge arisings are to be made.

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:109:commencement of dredging activities.

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:109:be submitted to the MMO at least 6 weeks prior to the commencement of dredging activities.

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:109: (4) No dredging and disposal activities may be undertaken until the details of sediment sampling

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:109: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:109: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:113:during dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:176:(f) details of the method location and extent of any dredging, a technical assessment of the

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:176: likely effect of the dredging on the protected crossing and any mitigation measures which

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:179: 196.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:217:(f) details of the method location and extent of any dredging, a technical assessment of the

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:217: likely effect of the dredging on the protected crossing and any mitigation measures which

EN010103-002526-NZT DCO 2.1 - Final draft DCO (Tracked) - Nov 2022 (D12).pdf:220: 313.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:4: Bay) and any localised dredging required to

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:9: pipeline to the Tees Bay) and any localised dredging required to support the specific

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:10: • planning and licensing for marine construction, deposits and dredging that may

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:22: EW noted the associated dredging and disposal works which may, as a worst-case, be

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:22: regular Teesport dredging. EW explained that individual sampling results had been

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:23: Marine potential cofferdam to create a safe/dry working area and possibly preparatory dredge. Does

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:23: Dredging & particularly sensitive in terms of Ecology; EW agreed that there are several areas of primary

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:23: works associated with the worst-case (i.e. dredging, HDD, open-cut trenching etc.). EW asked

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:29: confirmed that we understand that should dredging or works capable of

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:29: seems appropriate and that there is a lot of dredging which is taking

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:43: We understand that should dredging be required (unlikely), further

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:50: is an active dredge and disposal licence just outside

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:59:and Refinement removed the need for a preparatory dredge as we think that

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:74:Preparatory Dredge ✓ 

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:97:International Maritime Organisation (IMO). Sampling of Dredged Material – Guidelines for the Sampling and Analysis of

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:97:Dredged Material Intended for Disposal at Sea 2005.

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:99: • Intake: EW confirmed that the need for a preparatory dredge has

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:140:04 Dredging RG discussed the location of preparatory dredging, stating that, as set out in

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:140: Tees no longer forms part of the development. Dredging would only occur at

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:140: the South Bank project as there would be no capital dredging as part of this marine environment

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:140:08 Cumulative Effects RG reiterated that project activities such as piling and dredging were small in MMO to review

EN010103-002235-NZT DCO 8.4 - MMO SoCG (Clean) - Sept 2022(D8).pdf:141: references. RG wanted to reiterate that the dredging will be small in extent within formal response

EN010103-002320-NZT DCO 9.34 - Updated List of Developments (Tacked) Oct 2022 (D9).pdf:7: Associated dredging waste water works

EN010103-002320-NZT DCO 9.34 - Updated List of Developments (Tacked) Oct 2022 (D9).pdf:17: Associated dredging operations to create completed and the Harbour Facilities the Harbour facilities will materially new or materially

EN010103-002320-NZT DCO 9.34 - Updated List of Developments (Tacked) Oct 2022 (D9).pdf:26: capital dredging (to deepen the northern half 7/VC (ES) available shall be

EN010103-002320-NZT DCO 9.34 - Updated List of Developments (Tacked) Oct 2022 (D9).pdf:26: berth pocket), offshore disposal of dredged

EN010103-001142-NZT DCO 6.4.31 ES Vol III Appendix 14C Marine Mammal Baseline.pdf:12: increased shipping, dredging, water pollution associated with

EN010103-001142-NZT DCO 6.4.31 ES Vol III Appendix 14C Marine Mammal Baseline.pdf:20: exploration, dredging, pollutant discharge, an increase in shipping activity

EN010103-000889-NZT DCO 6.4.28 ES Vol III Appendix 13A Aquatic Ecology Supplementary Desk Study and Field Survey Report.pdf:18: dredging with evidence of a high loading of silts and fines.

EN010103-001546-Marine Management Organistation - Comments on Relevant Representations (RRs).pdf:3: • Mitigation is required if dredging is to occur concurrently with other dredging

EN010103-001546-Marine Management Organistation - Comments on Relevant Representations (RRs).pdf:3: • Dissolved oxygen levels are monitored prior to dredging activity and during

EN010103-001546-Marine Management Organistation - Comments on Relevant Representations (RRs).pdf:3: dredging activity at regular intervals.

EN010103-002062-NZT DCO 7.12 - Habitats Regulations Assessment Report (Change Request) (Clean) August 2022 (D6).pdf:44: survey, dredging and discharge points and any associated movements of marine

EN010103-002062-NZT DCO 7.12 - Habitats Regulations Assessment Report (Change Request) (Clean) August 2022 (D6).pdf:45: the Proposed Development. This includes potential dredging (removal of sediment)

EN010103-002062-NZT DCO 7.12 - Habitats Regulations Assessment Report (Change Request) (Clean) August 2022 (D6).pdf:46: However, the dredging activities are unlikely to result in temporary changes to the

EN010103-002062-NZT DCO 7.12 - Habitats Regulations Assessment Report (Change Request) (Clean) August 2022 (D6).pdf:46: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-002062-NZT DCO 7.12 - Habitats Regulations Assessment Report (Change Request) (Clean) August 2022 (D6).pdf:77: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-002062-NZT DCO 7.12 - Habitats Regulations Assessment Report (Change Request) (Clean) August 2022 (D6).pdf:78: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-002062-NZT DCO 7.12 - Habitats Regulations Assessment Report (Change Request) (Clean) August 2022 (D6).pdf:78: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-002319-NZT DCO 9.34 - Updated List of Developments (Clean) Oct 2022 (D9).pdf:7: Associated dredging waste water works

EN010103-002319-NZT DCO 9.34 - Updated List of Developments (Clean) Oct 2022 (D9).pdf:17: Associated dredging operations to create completed and the Harbour Facilities the Harbour facilities will materially new or materially

EN010103-002319-NZT DCO 9.34 - Updated List of Developments (Clean) Oct 2022 (D9).pdf:26: capital dredging (to deepen the northern half 7/VC (ES) available shall be

EN010103-002319-NZT DCO 9.34 - Updated List of Developments (Clean) Oct 2022 (D9).pdf:26: berth pocket), offshore disposal of dredged

EN010103-000013-EN010103_Scoping Opinion.pdf:37: • any dredging works;

EN010103-000013-EN010103_Scoping Opinion.pdf:38: dredging activities. The ES should include confirmation of how any

EN010103-000013-EN010103_Scoping Opinion.pdf:75:Dredging

EN010103-000013-EN010103_Scoping Opinion.pdf:109: within 10 metres of an AGI (Above Ground Installation), or if any embankment or dredging

EN010103-000893-NZT DCO 6.2.7 ES Vol I Chapter 7 Legislative Context and Planning Policy.pdf:38: • Safeguarding of Port and Rail Facilities (Marine Dredged Sand & Gravel

EN010103-002553-NZT DCO 5.13 - HRA Report (Tracked) - Nov 2022 (D12).pdf:44: survey, dredging and discharge points and any associated movements of marine

EN010103-002553-NZT DCO 5.13 - HRA Report (Tracked) - Nov 2022 (D12).pdf:46: the Proposed Development. This includes potential dredging (removal of sediment)

EN010103-002553-NZT DCO 5.13 - HRA Report (Tracked) - Nov 2022 (D12).pdf:46: However, the dredging activities are unlikely to result in temporary changes to the

EN010103-002553-NZT DCO 5.13 - HRA Report (Tracked) - Nov 2022 (D12).pdf:46: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-002553-NZT DCO 5.13 - HRA Report (Tracked) - Nov 2022 (D12).pdf:81: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-002553-NZT DCO 5.13 - HRA Report (Tracked) - Nov 2022 (D12).pdf:82: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-002553-NZT DCO 5.13 - HRA Report (Tracked) - Nov 2022 (D12).pdf:82: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-001992-NZT DCO 9.24 - Written Summary of ISH4 August 2022 (D5).pdf:19: capital dredging up to 1.8 million m3 between 2021-2023) this development should be included in the cumulative

EN010103-001992-NZT DCO 9.24 - Written Summary of ISH4 August 2022 (D5).pdf:19: at South Bank (including an electrical substation), capital dredging (to deepen the northern half of the Tees Dock

EN010103-001992-NZT DCO 9.24 - Written Summary of ISH4 August 2022 (D5).pdf:19: turning circle, a section of the existing approach channel and to create a berth pocket), offshore disposal of dredged

EN010103-001992-NZT DCO 9.24 - Written Summary of ISH4 August 2022 (D5).pdf:19: there is no dredging within the Tees estuary as part of the Proposed Development, therefore there is no potential for

EN010103-001992-NZT DCO 9.24 - Written Summary of ISH4 August 2022 (D5).pdf:25: dredging operations to create berth. Associated completed and the Harbour Facilities the Harbour facilities will take

EN010103-001992-NZT DCO 9.24 - Written Summary of ISH4 August 2022 (D5).pdf:36: dredging (to deepen the northern half of the 7/VC be considered for shortlisting.

EN010103-001992-NZT DCO 9.24 - Written Summary of ISH4 August 2022 (D5).pdf:36: pocket), offshore disposal of dredged sediments

EN010103-002176-NZT DCO 6.4.49 - ES Vol III Appendix 25A Commitments Register Sept 2022(D7) (Clean).pdf:75: • Should any preparatory dredging be required,

EN010103-002176-NZT DCO 6.4.49 - ES Vol III Appendix 25A Commitments Register Sept 2022(D7) (Clean).pdf:75: disposal site. Disposal of dredged material would

EN010103-001635-Anglo American - Written Representations (WRs), including summaries of all WRs exceeding 1500 words.pdf:13: vi. Dredging operations within the Crown Estate dredge pocket

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:76: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:78: (ii) dredging campaign(s) facilitating the removal of material from the seabed required for

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:78: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 – “Tees

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:78: 5. The substances authorised for disposal include dredge arisings.

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:81:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:81:characterisation of material proposed for dredging.

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:81:applications and must be carried out at least 6 weeks prior to the commencement of dredging

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:81: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:82: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:82: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:84:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the disposal

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:86: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:88: (ii) dredging campaign(s) facilitating the removal of material from the seabed required for

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:88: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 – “Tees

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:89: 5. The substances authorised for disposal include dredge arisings.

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:93:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:93:characterisation of material proposed for dredging.

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:93:applications and must be carried out at least 6 weeks prior to the commencement of dredging

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:94: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:94: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:94: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001918-NZT DCO 2.1 - Draft DCO (Comparison with June 2022) - July 2022 (D4).pdf:96:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the disposal

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:86: proposed for dredging as part of the licenced activities;

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:88: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:88: (iii) the combined total disposal of up to 500m3 of dredge arisings across each of the

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:90: deposit of dredge arisings; and

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:90: from which the removal or deposit of dredge arisings are to be made.

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:91:commencement of dredging activities.

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:91:be submitted to the MMO at least 6 weeks prior to the commencement of dredging activities.

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:91: (4) No dredging and disposal activities may be undertaken until the details of sediment sampling

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:92: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:92: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:95:during dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:97: proposed for dredging as part of the licenced activities;

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:99: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:99: (iii) the disposal of up to 500m3 of dredge arisings at each of the disposal sites carrying

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:102: deposit of dredge arisings; and

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:102: from which the removal or deposit of dredge arisings are to be made.

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:103:commencement of dredging activities.

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:103:be submitted to the MMO at least 6 weeks prior to the commencement of dredging activities.

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:103: (4) No dredging and disposal activities may be undertaken until the details of sediment sampling

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:104: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:104: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002251-NZT DCO 2.1 - Draft DCO (Clean) - Sept 2022(D8).pdf:107:during dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-001914-NZT DCO 9.19 - Further Response to Written Question GEN.1.37 - July 2022 (D4).pdf:16: dredging operations to create berth. Associated completed and the Harbour Facilities the Harbour facilities will take

EN010103-001914-NZT DCO 9.19 - Further Response to Written Question GEN.1.37 - July 2022 (D4).pdf:27: dredging (to deepen the northern half of the 7/VC be considered for shortlisting.

EN010103-001914-NZT DCO 9.19 - Further Response to Written Question GEN.1.37 - July 2022 (D4).pdf:27: pocket), offshore disposal of dredged sediments

EN010103-001914-NZT DCO 9.19 - Further Response to Written Question GEN.1.37 - July 2022 (D4).pdf:33: Bank of the River Tees. (dry weight). Associated dredging operations to create berth. Associated

EN010103-001914-NZT DCO 9.19 - Further Response to Written Question GEN.1.37 - July 2022 (D4).pdf:39: dredging (to deepen the northern half of the Tees Dock turning circle, a section R/2021/0057/

EN010103-001914-NZT DCO 9.19 - Further Response to Written Question GEN.1.37 - July 2022 (D4).pdf:39: disposal of dredged sediments and construction and operation of a new quay

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:3:9 Annex 1 . Potential impacts on marine and migratory fish from dredging and disposal

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:7: disposal ‘means the deposit of dredged material at a disposal site…’. The materials

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:7: listed include material which will not arise from dredging activities and so the MMO

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:7: recommend that this is amended to only include materials from dredging. This was

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:8: to the commencement of dredging. The sediment sampling and analysis must be

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:8: commencement of dredging. The licensed activities must not commence until

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:11: own experience of assessing continuous sources, such as dredging for example,

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:11: remain within those distances of the dredger for a full 24-hour period. However, it

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:12: Applicant also suggests that ‘as both drilling of pin piles and dredging would be

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:12: paragraph 14.6.95 states that “Both the drilling of pin piles and dredging may

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:13: consultation documents regarding the extent of dredging works. In some

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:13: instances, it is suggested that preparatory dredging works are no longer required,

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:13: and, in case dredging works are required, they will be subject to DML conditions

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:13: MMO note that dredging campaign(s) facilitating the removal of material from the

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:13: information on the timing, exact location, and quantities of material to be dredged

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:13: occurring as a result of dredging activity, either as a standalone activity, or in

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:15: South Bank Quay (i.e., capital dredging up to 1.8 million m3 between 2021-2023)

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:15: the best of the MMO’s knowledge, this project includes dredging up to 750,000

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:15: m3 (phase 1) and dredging up to 372,000 m3 (phase 2) from the Tees approach

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:15: term nature of the proposed works and the low likelihood of dredging and piling

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:15: acknowledges; i) adverse cumulative impacts are likely to occur should dredging/

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:15: potential cumulative impacts occurring, should dredging/piling/drilling work from

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:15: • York Potash Harbour facilities - includes capital dredging of approx. 1 million

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:16: 7-8 hrs for approx. 120 weeks until 2028 with additional dredging works of up

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:16: • Ongoing maintenance dredging at Hartlepool and in the Tees estuary for an

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:16: • Dawsons No 2 (quay 1 and 2) proposed dredging and piling works for a

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:16: which details the type (e.g., dredging, piling, drilling, number of piles etc) and

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:19:9 Annex 1 . Potential impacts on marine and migratory fish from dredging and

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:19: drag head of the dredger.

EN010103-001240-EN010103_Marine_Management_Organisation_Relevant_Representation_17122021_Redacted.pdf:19: vii. Potential disturbance caused by underwater noise from the dredging process.

EN010103-002527-NZT DCO 2.1f - Schedule of Changes to DCO - Nov 2022 (D12).pdf:12: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002527-NZT DCO 2.1f - Schedule of Changes to DCO - Nov 2022 (D12).pdf:14: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-000903-NZT DCO 6.2.19 ES Vol I Chapter 19 Marine Heritage.pdf:12: amount of dredging to support the newer, larger and heavier ships, therefore,

EN010103-000903-NZT DCO 6.2.19 ES Vol I Chapter 19 Marine Heritage.pdf:12: any buried landforms have possibly been removed or truncated by dredging

EN010103-000903-NZT DCO 6.2.19 ES Vol I Chapter 19 Marine Heritage.pdf:27: UK Hydrographic Office (2019b). Explore ENC Contours and Dredged

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:88: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:89: proposed for dredging as part of the licenced activities;

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:90: (ii) dredging campaign(s) facilitating the removal of material from the seabed required for

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:91: (iii) the combined total disposal of up to 500m3 of dredge arisings at across each of the

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:91: 5. The substances authorised for disposal include dredge arisings.

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:93: deposit of the authorised depositsdredge arisings; and

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:93: of dredge arisings are to be made.

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:94:at least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:95:characterisation of material proposed for dredging.for approval (following consultation with the

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:95:Environment Agency) at least six months prior to the commencement of dredging activities.

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:95:be submitted to the MMO at least 6 weeks prior to the commencement of dredging activities.

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:95:dredging activities.

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:95: (4) (2)Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:95:No dredging and disposal activities may be undertaken until the details of sediment sampling and

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:95: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:95: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:99:during dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:101: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:102: proposed for dredging as part of the licenced activities;

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:104: (ii) dredging campaign(s) facilitating the removal of material from the seabed required for

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:104: (iii) the disposal of up to 500m3 of dredge arisings at each of the disposal site sites carrying

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:104: 5. The substances authorised for disposal include dredge arisings.

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:107: deposit of the authorised depositsdredge arisings; and

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:107: of dredge arisings are to be made.

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:109:at least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:109:characterisation of material proposed for dredging.for approval following consultation with the

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:109:Environment Agency) at least six months prior to the commencement of dredging activities.

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:109:be submitted to the MMO at least 6 weeks prior to the commencement of dredging activities.

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:109:dredging activities.

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:109: (4) (2)Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:109:No dredging and disposal activities may be undertaken until the details of sediment sampling and

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:109: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:110: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002252-NZT DCO 2.1 - Draft DCO (Tracked) - Sept 2022(D8).pdf:113:during dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-002331-NZT DCO 5.13 - Habitats Regulations Assessment Report (Tracked) Oct 2022 (D9).pdf:44: survey, dredging and discharge points and any associated movements of marine

EN010103-002331-NZT DCO 5.13 - Habitats Regulations Assessment Report (Tracked) Oct 2022 (D9).pdf:46: the Proposed Development. This includes potential dredging (removal of sediment)

EN010103-002331-NZT DCO 5.13 - Habitats Regulations Assessment Report (Tracked) Oct 2022 (D9).pdf:46: However, the dredging activities are unlikely to result in temporary changes to the

EN010103-002331-NZT DCO 5.13 - Habitats Regulations Assessment Report (Tracked) Oct 2022 (D9).pdf:46: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-002331-NZT DCO 5.13 - Habitats Regulations Assessment Report (Tracked) Oct 2022 (D9).pdf:79: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-002331-NZT DCO 5.13 - Habitats Regulations Assessment Report (Tracked) Oct 2022 (D9).pdf:80: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-002331-NZT DCO 5.13 - Habitats Regulations Assessment Report (Tracked) Oct 2022 (D9).pdf:80: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-001859-9.12 - Applicants comments on written Representations - June 2022 (D3).pdf:20: Dredging operations within the Crown Estate dredge pocket easement area, if Option 2 of Works No. 6

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:81: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:83: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:83: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:83: 5.—(1) The substances authorised for disposal include dredge arisings.

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:90:months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:90:characterisation of material proposed for dredging.

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:90: (3) Dredging and disposal must not take place until written approval is provided by the MMO.

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:91: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:91: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:92:dispose of dredged material within the Order limits seaward of MHWS but outside of disposal site

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:93:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:94: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:96: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:96: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:96: 5.—(1) The substances authorised for disposal include dredge arisings.

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:106:months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:106:characterisation of material proposed for dredging.

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:106: (3) Dredging and disposal must not take place until written approval is provided by the MMO.

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:106: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:107: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:108:dispose of dredged material within the Order limits seaward of MHWS but outside of disposal site

EN010103-001471-NZT DCO 2.1 - Draft DCO (Comparison with Oct 2021 version) - Apr 2022.pdf:109:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-001738-NZT DCO 9.8 Appendix GH.1.1b Preliminary Onshore Ground Investigation for GIR Report - June 2022.pdf:26:known that dredging material has been used to reclaim land either side of the main Tees Estuary channel and may

EN010103-001738-NZT DCO 9.8 Appendix GH.1.1b Preliminary Onshore Ground Investigation for GIR Report - June 2022.pdf:26:estuary, with construction of slag walls and placement of hydraulic fill dredged from the River Tees.

EN010103-001738-NZT DCO 9.8 Appendix GH.1.1b Preliminary Onshore Ground Investigation for GIR Report - June 2022.pdf:27:North Yorkshire). It is also known that dredging material has been used to reclaim land either side of the main Tees

EN010103-001738-NZT DCO 9.8 Appendix GH.1.1b Preliminary Onshore Ground Investigation for GIR Report - June 2022.pdf:28: (poorly sorted and compacted). mapping. dredging, slag, steel and tarmacadam

EN010103-001470-NZT DCO 2.2 - Explanatory Memorandum - Apr 2022.pdf:56: • Any dredging required to support the specific components above.

EN010103-001470-NZT DCO 2.2 - Explanatory Memorandum - Apr 2022.pdf:57: • Any dredging required to support the specific components above.

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:96: on location and timings of dredgings, the Applicant must consider The Applicant will update the Framework CEMP stating that the EA

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:96: Plan and subsequent Sample Analysis. Dredging If the proposed consider impacts to fish migration. This was discussed and agreed in

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:96: dredging operations were to occur concurrently with other dredging a meeting with the EA on the 1 April 2022.

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:96: operations, we strongly recommend that these dredging activities

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:96: dredging activity and during dredging activity at regular intervals and will be consulted on the sample plan and subsequent sample

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:96: be natural. We would welcome the inclusion of a requirement Dredging

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:96: regarding the provision of ecological enhancements to compensate Dredging (if required) would only be undertaken once around the

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:96: success of the marine enhancement measures. Suspended sediment mixed. Impacts from this small amount of dredging are anticipated

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:122: and the dispersion of suspended sediments: where dredging and

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:122: dredgings, they must consider the impacts to fish migration. This will

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:122: Dredging Issue: 14.9.17 states that should dredging works occur See response above.

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:122: Zero dredging’s occur at same time as other dredging operations

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:123: the proposed dredging operations are to occur concurrently with

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:123: other dredging operations, we strongly recommend that these

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:123: dredging activities avoid peak fish migration times (1st July-1st

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:123: monitored prior to dredging activity and during dredging activity at

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:124: Section 14.6.36 assumes that any dredged material from the site

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:124: dredge pocket will be created for the placement of the head and

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:125: There is potential for dredging’s to be re-suspended as a result of

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:125: dredgings? What will happen to the bored sediment? What are the

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:166: Capital dredging of the River Tees 2.10 See paragraph 2.8.

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:166: any planned future capital dredged depths. Dredging is clearly an

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:236: under Part 1 (1) of the DML, the materials listed here do effect of the changes is that only dredged materials may be disposed of. The

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:236: disposal ‘means the deposit of dredged material at a

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:236: will not arise from dredging activities and so the MMO

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:237: from dredging. This was noted in our previous response to

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:239: dredging. The sediment sampling and analysis must be

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:239: weeks prior to the commencement of dredging. The

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:246: cumulative effects assessment. The report concludes that the cumulative effects assessment. However, piling/drilling and the dredging

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:247: 14-11 in Chapter 14). Based on our own experience of calculate the potential Zones of Influence for dredging (TTS, for 12 hrs = 74 m)

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:247: assessing continuous sources, such as dredging for has been taken from literature sources (Greene, 1987; in Genesis, 2011). The

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:247: dredger for a full 24-hour period. However, it is reasonable source. For behavioural disturbance, there is a lack of scientific information to

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:247: is important to note that preparatory dredging in the Tees Estuary is no longer

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:247: required. Dredging is only required to create a pocket around the existing

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:249: that ‘as both drilling of pin piles and dredging would be

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:249: states that “Both the drilling of pin piles and dredging may

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:250: 6.3.7 The MMO note that there appear to be some In response to paragraph 6.3.7 of RR-0039, Preparatory dredging in the Tees

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:250: contradictions throughout the consultation documents Estuary is no longer required. Dredging is only required to create a pocket

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:250: regarding the extent of dredging works. In some instances, around the existing outfall head in Tees Bay which is located 1 km south-east

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:250: it is suggested that preparatory dredging works are no of the mouth of the River Tees. This is in a worst-case scenario where the

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:250: longer required, and, in case dredging works are required, outfall head is replaced and fitted with a diffuser. The alternative outfall

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:250: MMO’s Sample Plan) and secured within the DML before dredged pocket may be required as part of this scenario. These works will be

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:251: the commence of works. The MMO note that dredging away from the mouth of the River Tees and will be very short in duration and

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:251: campaign(s) facilitating the removal of material from the temporary. Furthermore, the dredging footprint would be small in extent

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:251: backfill/side cast (as required) are already included within used. Where dredging is required, pre-construction sediment contamination

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:251: material to be dredged is provided, in order to consider the conducted in accordance with the MMO’s Sample Plan and subsequent

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:251: of dredging activity, either as a standalone activity, or in of the Draft DML.

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:251: and deposition, many are known to be reasonably tolerant that if dredging is required it will be very limited in extent (approximately 10m

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:251: of smothering (Kiørbe et al., 1981). Overall, the sensitivity x 10m) and short in duration. Dredging will take place in the Tees Bay and

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:251: It is recommended that this statement is revised to away from the area of dredging and potential Zone of Influence.

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:252: support this statement and request that appropriate fisheries (Jensen et al., 2011). Increases in SSC as a result of potential dredging

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:252: limited size of the dredge envelope, short in extent (given that the sediment

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:253: are highly mobile and wide ranging. Thus, for all highest sound source levels are the potential dredging and pin pile drilling that

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:255: proposed for Tees South Bank Quay (i.e., capital dredging marine project. Could the MMO be referring to ID79 –Northern Gateway (PD

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:256: of the MMO’s knowledge, this project includes dredging up have been considered as part of the cumulative effects assessment.

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:256: to 750,000 m3 (phase 1) and dredging up to 372,000 m3

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:256: 6.4.4 Paragraph 24.5.71 – It is noted that the Applicant has In response to paragraphs 6.4.4 and 6.4.5, dredging and piling/drilling

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:256: impacts on fish receptors due to the temporary, short-term river. Furthermore, the extent of dredging and piling/drilling (if required) is

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:256: dredging and piling operations occurring concurrently. result in a barrier to diadromous fish, based on the location of the outfall head

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:256: Conversely, the MMO note that the Applicant options (see Dredging and Piling responses for further detail). Furthermore,

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:256: occur should dredging/ piling-drilling works occur at the effects on the basis that they would occur before the NZT project would start.

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:256: impacts occurring, should dredging/piling/drilling work adopted to manage this coordination in the future, based on previous project

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:257: • York Potash Harbour facilities - includes capital dredging

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:257: 120 weeks until 2028 with additional dredging works of up

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:257: • Ongoing maintenance dredging at Hartlepool and in the

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:257: • Dawsons No 2 (quay 1 and 2) proposed dredging and

EN010103-001579-NZT DCO 9.6 - Applicants' Comments on RRs - May 2022.pdf:258: document which details the type (e.g., dredging, piling,

EN010103-002088-NZT DCO 6.3.12 - ES Vol II Figure 7-1 Local Plan Areas August 2022 (D6).pdf:1: MWC4, MWC5 Marine dredged Sand and

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:4: Bay) and any localised dredging required to

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:9: pipeline to the Tees Bay) and any localised dredging required to support the specific

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:10: • planning and licensing for marine construction, deposits and dredging that may

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:21: design, including piling, dredging and the Tees crossing, and c) cumulative effects.

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:23: EW noted the associated dredging and disposal works which may, as a worst-case, be

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:23: regular Teesport dredging. EW explained that individual sampling results had been

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:24: Marine potential cofferdam to create a safe/dry working area and possibly preparatory dredge. Does

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:24: Dredging & particularly sensitive in terms of Ecology; EW agreed that there are several areas of primary

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:24: works associated with the worst-case (i.e. dredging, HDD, open-cut trenching etc.). EW asked

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:30: confirmed that we understand that should dredging or works capable of

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:30: seems appropriate and that there is a lot of dredging which is taking

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:44: We understand that should dredging be required (unlikely), further

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:51: is an active dredge and disposal licence just outside

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:60:and Refinement removed the need for a preparatory dredge as we think that

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:75:Preparatory Dredge ✓ 

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:98:International Maritime Organisation (IMO). Sampling of Dredged Material – Guidelines for the Sampling and Analysis of

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:98:Dredged Material Intended for Disposal at Sea 2005.

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:100: • Intake: EW confirmed that the need for a preparatory dredge has

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:141:04 Dredging RG discussed the location of preparatory dredging, stating that, as set out in

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:141: Tees no longer forms part of the development. Dredging would only occur at

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:141: the South Bank project as there would be no capital dredging as part of this marine environment

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:141:08 Cumulative Effects RG reiterated that project activities such as piling and dredging were small in MMO to review

EN010103-002067-NZT DCO 8.4 - Marine Management Organisation SoCG (Tracked) August 2022 (D6).pdf:142: references. RG wanted to reiterate that the dredging will be small in extent within formal response

EN010103-002198-Report on the Implications for European Sites (RIES).pdf:19: in addition, there would be no dredging within the Tees Estuary as part of

EN010103-000820-NZT DCO 3.3 - Funding Statement - Appendix 6.pdf:271: and; (iii) the necessity and convenience of dredging Augusta harbor within 90 days, basing its request on

EN010103-002063-NZT DCO 7.12 - Habitats Regulations Assessment Report (Change Request) (Tracked) August 2022 (D6).pdf:45: survey, dredging and discharge points and any associated movements of marine

EN010103-002063-NZT DCO 7.12 - Habitats Regulations Assessment Report (Change Request) (Tracked) August 2022 (D6).pdf:47: the Proposed Development. This includes potential dredging (removal of sediment)

EN010103-002063-NZT DCO 7.12 - Habitats Regulations Assessment Report (Change Request) (Tracked) August 2022 (D6).pdf:47: MLWS. Therefore, this activity isHowever, the dredging activities are unlikely to

EN010103-002063-NZT DCO 7.12 - Habitats Regulations Assessment Report (Change Request) (Tracked) August 2022 (D6).pdf:47: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-002063-NZT DCO 7.12 - Habitats Regulations Assessment Report (Change Request) (Tracked) August 2022 (D6).pdf:81: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-002063-NZT DCO 7.12 - Habitats Regulations Assessment Report (Change Request) (Tracked) August 2022 (D6).pdf:82: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-002063-NZT DCO 7.12 - Habitats Regulations Assessment Report (Change Request) (Tracked) August 2022 (D6).pdf:82: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:79: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:81: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:81: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:81: 5. The substances authorised for disposal include dredge arisings.

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:84:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:84:characterisation of material proposed for dredging.

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:84:applications and must be carried out at least 6 weeks prior to the commencement of dredging

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:84: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:85: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:85: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:87:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:89: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:91: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:91: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:92: 5. The substances authorised for disposal include dredge arisings.

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:97:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:97:characterisation of material proposed for dredging.

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:97:applications and must be carried out at least 6 weeks prior to the commencement of dredging

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:97: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:97: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:97: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001794-NZT DCO 2.1 - Draft DCO - June 2022.pdf:100:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-001478-NZT DCO 5.13 Habitat Regulations Assessment Report Rev 3 Tracked.pdf:44: survey, dredging and discharge points and any associated movements of marine

EN010103-001478-NZT DCO 5.13 Habitat Regulations Assessment Report Rev 3 Tracked.pdf:45: includes potential dredging (removal of sediment) around the water discharge,

EN010103-001478-NZT DCO 5.13 Habitat Regulations Assessment Report Rev 3 Tracked.pdf:45: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-001478-NZT DCO 5.13 Habitat Regulations Assessment Report Rev 3 Tracked.pdf:75: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-001478-NZT DCO 5.13 Habitat Regulations Assessment Report Rev 3 Tracked.pdf:76: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-001478-NZT DCO 5.13 Habitat Regulations Assessment Report Rev 3 Tracked.pdf:76: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-002037-Orsted Hornsea Project Four Limited - Responses to the ExA’s ExQ2.pdf:331: © dredging for the purposes of seabed preparation for foundation works and/or electrical

EN010103-002037-Orsted Hornsea Project Four Limited - Responses to the ExA’s ExQ2.pdf:354: © dredging for the purposes of seabed preparation for foundation works and/or electrical

EN010103-002037-Orsted Hornsea Project Four Limited - Responses to the ExA’s ExQ2.pdf:383:A4.4.4 REP6-004 Dredging and disposal site 2 27 July 2022

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:44: BIO.1.9 Applicants According to paragraphs 14.9.18 and 14.9.21 of the ES APP-096 it is Dredging in the Tees Bay prior to installation of the new outfall head (if required)

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:44: considered unlikely that dredging operations associated with cumulative can be timed by the Applicants to avoid other dredging activities in the River

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:44: developments would occur concurrently while piling activities associated with the Tees. However, due to the location of the outfall head preparatory dredging

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:44: simultaneously. to be dredged, this activity is considered highly unlikely to increase suspended

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:44: to undertake dredging at the outfall head concurrently with dredging at other

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:44: dredging as part of the Proposed Development in the Tees Bay, due to the

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:51: dredging (TTS, for 12 hrs = 74 m) has been taken from literature sources

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:51: source. However, it is important to note that preparatory dredging in the Tees

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:51: Estuary is no longer required. Dredging is only required to create a pocket

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:51: BIO.1.34 Applicants The EA has requested that if any dredging is to take place, that it should avoid Dredging may be required to create a pocket around the outfall head options in

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:51: the peak migration times for fish species, 1 July – 1 September. the Tees Bay, away from activities within the river. The extent of dredging will be

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:51: north into the River Tees, away from the area of dredging and potential Zone of

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:52: The location and timings of any dredging will be included in a Marine Method

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:55:  Direct habitat loss - While some minor dredging for the outfall head (Work

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:55: APP-096) and physically widely separated from the dredging for the

EN010103-001780-NZT DCO 9.7 - Applicants' Response to ExA's FWQs - June 2022.pdf:98: Waste Development Plan Core Strategy DPD (September 2011)? Area for Marine Dredged Sand and Gravel under Policy MWC11 (see

EN010103-002529-NZT DCO 2.2 - Explanatory Memorandum (Tracked) - Nov 2022 (D12).pdf:51: • Any dredging required to support the specific components above.

EN010103-002529-NZT DCO 2.2 - Explanatory Memorandum (Tracked) - Nov 2022 (D12).pdf:51: • Any dredging required to support the specific components above.

EN010103-001144-NZT DCO 6.4.33 ES Vol III Appendix 14E Coastal Modelling Report.pdf:55:which included the Philips Inset Dock and dredged areas of the Tees river channel.

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:80: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:82: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:82: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:82: 5. The substances authorised for disposal include dredge arisings.

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:85:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:85:characterisation of material proposed for dredging.

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:85:applications and must be carried out at least 6 weeks prior to the commencement of dredging

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:85: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:86: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:86: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:88:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:90: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:92: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:92: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:93: 5. The substances authorised for disposal include dredge arisings.

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:98:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:98:characterisation of material proposed for dredging.

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:98:applications and must be carried out at least 6 weeks prior to the commencement of dredging

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:98: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:98: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:98: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001919-NZT DCO 2.1 - Draft DCO July 2022 (D4).pdf:101:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-002506-NZT DCO 7.15.1 - Third ES Addendum Volume I (Main Report) - Nov 2022 (D12).pdf:12: o dredging of pocket;

EN010103-002506-NZT DCO 7.15.1 - Third ES Addendum Volume I (Main Report) - Nov 2022 (D12).pdf:12: outfall head within the dredge

EN010103-002506-NZT DCO 7.15.1 - Third ES Addendum Volume I (Main Report) - Nov 2022 (D12).pdf:12: o backfill of the dredged pocket

EN010103-002506-NZT DCO 7.15.1 - Third ES Addendum Volume I (Main Report) - Nov 2022 (D12).pdf:12: o dredging of pocket;

EN010103-002506-NZT DCO 7.15.1 - Third ES Addendum Volume I (Main Report) - Nov 2022 (D12).pdf:13: within the dredge pocket;

EN010103-002506-NZT DCO 7.15.1 - Third ES Addendum Volume I (Main Report) - Nov 2022 (D12).pdf:13: o backfill of the dredged pocket around the outfall head;

EN010103-001159-NZT DCO 5.7 - Carbon Capture Readiness Assessment.pdf:31:5.4.8 Navigation of wind farm sites and associated cabling, dredging areas, existing

EN010103-000828-NZT DCO 2.2 - Explanatory Memorandum.pdf:55: • Any dredging required to support the specific components above.

EN010103-000828-NZT DCO 2.2 - Explanatory Memorandum.pdf:56: • Any dredging required to support the specific components above.

EN010103-001108-NZT DCO 6.4.15 ES Vol III Appendix 10D Geotechnical Risk Register.pdf:6: dredging) was placed as strength.

EN010103-001792-NZT DCO 2.1a - Schedule of Changes to the draft DCO - June 2022.pdf:9: the substances authorised for disposal are solely dredging arisings).

EN010103-001792-NZT DCO 2.1a - Schedule of Changes to the draft DCO - June 2022.pdf:10: commencement of dredging activities, as requested by the MMO in its Relevant

EN010103-001792-NZT DCO 2.1a - Schedule of Changes to the draft DCO - June 2022.pdf:10: paragraph (1) and dredging and disposal following the carrying out of the sediment

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:4: Bay) and any localised dredging required to

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:9: pipeline to the Tees Bay) and any localised dredging required to support the specific

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:10: • planning and licensing for marine construction, deposits and dredging that may

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:23: EW noted the associated dredging and disposal works which may, as a worst-case, be

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:23: regular Teesport dredging. EW explained that individual sampling results had been

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:24: Marine potential cofferdam to create a safe/dry working area and possibly preparatory dredge. Does

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:24: Dredging & particularly sensitive in terms of Ecology; EW agreed that there are several areas of primary

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:24: works associated with the worst-case (i.e. dredging, HDD, open-cut trenching etc.). EW asked

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:30: confirmed that we understand that should dredging or works capable of

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:30: seems appropriate and that there is a lot of dredging which is taking

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:44: We understand that should dredging be required (unlikely), further

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:51: is an active dredge and disposal licence just outside

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:60:and Refinement removed the need for a preparatory dredge as we think that

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:75:Preparatory Dredge ✓ 

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:98:International Maritime Organisation (IMO). Sampling of Dredged Material – Guidelines for the Sampling and Analysis of

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:98:Dredged Material Intended for Disposal at Sea 2005.

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:100: • Intake: EW confirmed that the need for a preparatory dredge has

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:141:04 Dredging RG discussed the location of preparatory dredging, stating that, as set out in

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:141: Tees no longer forms part of the development. Dredging would only occur at

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:141: the South Bank project as there would be no capital dredging as part of this marine environment

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:141:08 Cumulative Effects RG reiterated that project activities such as piling and dredging were small in MMO to review

EN010103-002066-NZT DCO 8.4 - Marine Management Organisation SoCG (Clean) August 2022 (D6).pdf:142: references. RG wanted to reiterate that the dredging will be small in extent within formal response

EN010103-002078-NZT DCO - 9.27 Applicants’ Response to the ExA's Second Written Questions - August 2022 (D6).pdf:75: dredging operations to create berth. Associated completed and the Harbour Facilities the Harbour facilities will take

EN010103-002078-NZT DCO - 9.27 Applicants’ Response to the ExA's Second Written Questions - August 2022 (D6).pdf:85: dredging (to deepen the northern half of the 7/VC available shall be considered

EN010103-002078-NZT DCO - 9.27 Applicants’ Response to the ExA's Second Written Questions - August 2022 (D6).pdf:85: pocket), offshore disposal of dredged

EN010103-001526-NZT-ExQ1.pdf:23: dredging operations associated with cumulative developments would occur concurrently while

EN010103-001526-NZT-ExQ1.pdf:28:BIO.1.34 Applicants The EA has requested that if any dredging is to take place, that it should avoid the peak

EN010103-002509-NZT DCO 7.16 - HRA for Change Request (Tracked) - Nov 2022 (D12).pdf:44: survey, dredging and discharge points and any associated movements of marine

EN010103-002509-NZT DCO 7.16 - HRA for Change Request (Tracked) - Nov 2022 (D12).pdf:46: the Proposed Development. This includes potential dredging (removal of sediment)

EN010103-002509-NZT DCO 7.16 - HRA for Change Request (Tracked) - Nov 2022 (D12).pdf:46: However, the dredging activities are unlikely to result in temporary changes to the

EN010103-002509-NZT DCO 7.16 - HRA for Change Request (Tracked) - Nov 2022 (D12).pdf:46: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-002509-NZT DCO 7.16 - HRA for Change Request (Tracked) - Nov 2022 (D12).pdf:81: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-002509-NZT DCO 7.16 - HRA for Change Request (Tracked) - Nov 2022 (D12).pdf:82: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-002509-NZT DCO 7.16 - HRA for Change Request (Tracked) - Nov 2022 (D12).pdf:82: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-001588-NZT DCO 8.6 - NE SoCG - May 2022.pdf:34: JP queried if dredging and disposal formed part of the assessment? HY explained

EN010103-001588-NZT DCO 8.6 - NE SoCG - May 2022.pdf:85:International Maritime Organisation (IMO). Sampling of Dredged Material – Guidelines for the Sampling and Analysis of

EN010103-001588-NZT DCO 8.6 - NE SoCG - May 2022.pdf:85:Dredged Material Intended for Disposal at Sea 2005.

EN010103-000885-NZT DCO 5.13 - Habitat Regulations Assessment Report.pdf:44: survey, dredging and discharge points and any associated movements of marine

EN010103-000885-NZT DCO 5.13 - Habitat Regulations Assessment Report.pdf:45: includes potential dredging (removal of sediment) around the water discharge,

EN010103-000885-NZT DCO 5.13 - Habitat Regulations Assessment Report.pdf:45: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-000885-NZT DCO 5.13 - Habitat Regulations Assessment Report.pdf:74: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-000885-NZT DCO 5.13 - Habitat Regulations Assessment Report.pdf:75: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-000885-NZT DCO 5.13 - Habitat Regulations Assessment Report.pdf:75: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-001999-NZT DCO 2.2 - Explanatory Memorandum - August 2022(D5) - Clean.pdf:50: • Any dredging required to support the specific components above.

EN010103-001999-NZT DCO 2.2 - Explanatory Memorandum - August 2022(D5) - Clean.pdf:50: • Any dredging required to support the specific components above.

EN010103-001978-NZT DCO 6.4.5 ES Vol III Appendix 5A - Framework CEMP (Clean) August 2022 (D5).pdf:35: • Should any preparatory dredging be required, material shall be

EN010103-001978-NZT DCO 6.4.5 ES Vol III Appendix 5A - Framework CEMP (Clean) August 2022 (D5).pdf:36: receive material similar to that which is likely at the proposed dredge

EN010103-001978-NZT DCO 6.4.5 ES Vol III Appendix 5A - Framework CEMP (Clean) August 2022 (D5).pdf:36: locations. Disposal of dredged material would be undertaken in

EN010103-002056-NZT DCO 5.13 - Habitats Regulations Assessment Report (Clean) August 2022 (D6).pdf:45: survey, dredging and discharge points and any associated movements of marine

EN010103-002056-NZT DCO 5.13 - Habitats Regulations Assessment Report (Clean) August 2022 (D6).pdf:46: the Proposed Development. This includes potential dredging (removal of sediment)

EN010103-002056-NZT DCO 5.13 - Habitats Regulations Assessment Report (Clean) August 2022 (D6).pdf:46: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-002056-NZT DCO 5.13 - Habitats Regulations Assessment Report (Clean) August 2022 (D6).pdf:79: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-002056-NZT DCO 5.13 - Habitats Regulations Assessment Report (Clean) August 2022 (D6).pdf:80: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-002056-NZT DCO 5.13 - Habitats Regulations Assessment Report (Clean) August 2022 (D6).pdf:80: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-002045-NZT DCO 2.2 - Explanatory Memorandum (Clean) August 2022 (D6).pdf:49: • Any dredging required to support the specific components above.

EN010103-002045-NZT DCO 2.2 - Explanatory Memorandum (Clean) August 2022 (D6).pdf:50: • Any dredging required to support the specific components above.

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:77: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:79: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:79: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:79: 5.—(1) The substances authorised for disposal include dredge arisings.

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:87:months prior to the commencement of dredging activities in order to provide an adequate

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:87:characterisation of material proposed for dredging.

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:87: (3) Dredging and disposal must not take place until written approval is provided by the MMO.

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:88: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:88: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:89:dispose of dredged material within the Order limits seaward of MHWS but outside of disposal site

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:90:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:91: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:93: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:93: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:94: 5.—(1) The substances authorised for disposal include dredge arisings.

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:101:months prior to the commencement of dredging activities in order to provide an adequate

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:101:characterisation of material proposed for dredging.

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:101: (3) Dredging and disposal must not take place until written approval is provided by the MMO.

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:102: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:102: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:103:dispose of dredged material within the Order limits seaward of MHWS but outside of disposal site

EN010103-000827-NZT DCO 2.1 - Draft Development Consent Order.pdf:104:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-001479-NZT DCO 5.13 Habitat Regulations Assessment Report Rev 3 Final 2022-04-26.pdf:43: survey, dredging and discharge points and any associated movements of marine

EN010103-001479-NZT DCO 5.13 Habitat Regulations Assessment Report Rev 3 Final 2022-04-26.pdf:45: includes potential dredging (removal of sediment) around the water discharge,

EN010103-001479-NZT DCO 5.13 Habitat Regulations Assessment Report Rev 3 Final 2022-04-26.pdf:45: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-001479-NZT DCO 5.13 Habitat Regulations Assessment Report Rev 3 Final 2022-04-26.pdf:74: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-001479-NZT DCO 5.13 Habitat Regulations Assessment Report Rev 3 Final 2022-04-26.pdf:75: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-001479-NZT DCO 5.13 Habitat Regulations Assessment Report Rev 3 Final 2022-04-26.pdf:75: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-001849-5.13 - HRA Report (Clean) - June 2022(D3).pdf:45: survey, dredging and discharge points and any associated movements of marine

EN010103-001849-5.13 - HRA Report (Clean) - June 2022(D3).pdf:46: the Proposed Development. This includes potential dredging (removal of sediment)

EN010103-001849-5.13 - HRA Report (Clean) - June 2022(D3).pdf:46: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-001849-5.13 - HRA Report (Clean) - June 2022(D3).pdf:76: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-001849-5.13 - HRA Report (Clean) - June 2022(D3).pdf:77: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-001849-5.13 - HRA Report (Clean) - June 2022(D3).pdf:77: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-001215-NZT DCO 2.2 - Explanatory Memorandum - Oct 2021 Rev.2.0.pdf:57: • Any dredging required to support the specific components above.

EN010103-001215-NZT DCO 2.2 - Explanatory Memorandum - Oct 2021 Rev.2.0.pdf:58: • Any dredging required to support the specific components above.

EN010103-002246-NZT DCO - 9.34 Updated List of Developments (Tracked) - Sept 2022 (D8).pdf:7: Associated dredging waste water works

EN010103-002246-NZT DCO - 9.34 Updated List of Developments (Tracked) - Sept 2022 (D8).pdf:16: Associated dredging operations to create be completed and the Harbour the Harbour facilities will materially new or materially

EN010103-002246-NZT DCO - 9.34 Updated List of Developments (Tracked) - Sept 2022 (D8).pdf:25: capital dredging (to deepen the northern half 7/VC (ES) available shall be

EN010103-002246-NZT DCO - 9.34 Updated List of Developments (Tracked) - Sept 2022 (D8).pdf:25: berth pocket), offshore disposal of dredged

EN010103-001766-NZT DCO 9.8 - Appendix PPL.1.3a - South Tees Regeneration Master Plan - June 2022.pdf:44: 0.00M DREDGED CHANNEL DEPTHS SHOWN IN 'METRES LAT'

EN010103-001766-NZT DCO 9.8 - Appendix PPL.1.3a - South Tees Regeneration Master Plan - June 2022.pdf:110: draught at the quay interface, via pocket dredging. also been shown in establishing an onshore engineering

EN010103-000921-NZT DCO 6.3.12 ES Vol II Figure 7-1 Local Plan Areas.pdf:1: MWC4, MWC5 Marine dredged Sand and

EN010103-001767-NZT DCO 9.8 - Appendix PPL.1.2b RBCB and STBC policy maps with Order Limits overlay - June 2022.pdf:1: MWC4, MWC5 Marine dredged Sand and

EN010103-002309-NZT DCO 6.4.5 - ES Vol III Appendix 5A - Framework CEMP (Clean) Oct 2022 (D9).pdf:37: • Should any preparatory dredging be required, material shall be

EN010103-002309-NZT DCO 6.4.5 - ES Vol III Appendix 5A - Framework CEMP (Clean) Oct 2022 (D9).pdf:38: receive material similar to that which is likely at the proposed dredge

EN010103-002309-NZT DCO 6.4.5 - ES Vol III Appendix 5A - Framework CEMP (Clean) Oct 2022 (D9).pdf:38: locations. Disposal of dredged material would be undertaken in

EN010103-002521-NZT DCO 9.48 - Applicants' Comments on D11 Submissons - Nov 2022 (D12).pdf:18: “disposal” means the deposit of dredge

EN010103-002521-NZT DCO 9.48 - Applicants' Comments on D11 Submissons - Nov 2022 (D12).pdf:19: “dredge arisings”. “dredge arisings” means inert material of

EN010103-002521-NZT DCO 9.48 - Applicants' Comments on D11 Submissons - Nov 2022 (D12).pdf:19: natural origin, produced during dredging.

EN010103-002521-NZT DCO 9.48 - Applicants' Comments on D11 Submissons - Nov 2022 (D12).pdf:19: The term “dredge arisings” relates to disposal

EN010103-002521-NZT DCO 9.48 - Applicants' Comments on D11 Submissons - Nov 2022 (D12).pdf:19: restricts disposal to the disposal of “dredging

EN010103-002521-NZT DCO 9.48 - Applicants' Comments on D11 Submissons - Nov 2022 (D12).pdf:19: 7 Part 2 (11)(3)© – The MMO 11(3)© states “deposit of dredge arisings”.

EN010103-002521-NZT DCO 9.48 - Applicants' Comments on D11 Submissons - Nov 2022 (D12).pdf:19: recommend a definition is The definition of “dredge arisings” already

EN010103-002521-NZT DCO 9.48 - Applicants' Comments on D11 Submissons - Nov 2022 (D12).pdf:25: change from “authorised deposits” to “dredge that the term “authorised deposits”

EN010103-002521-NZT DCO 9.48 - Applicants' Comments on D11 Submissons - Nov 2022 (D12).pdf:25: term “dredge arising” is now used

EN010103-002521-NZT DCO 9.48 - Applicants' Comments on D11 Submissons - Nov 2022 (D12).pdf:25: produced during dredging. See the

EN010103-001581-NZT DCO 5.3 - Planning Statement - May 2022.pdf:29: Associated dredging waste water works

EN010103-001581-NZT DCO 5.3 - Planning Statement - May 2022.pdf:38: • Safeguarding of Port and Rail Facilities (Marine Dredged Sand & Gravel

EN010103-002330-NZT DCO 5.13 - Habitats Regulations Assessment Report (Clean) Oct 2022 (D9).pdf:44: survey, dredging and discharge points and any associated movements of marine

EN010103-002330-NZT DCO 5.13 - Habitats Regulations Assessment Report (Clean) Oct 2022 (D9).pdf:46: the Proposed Development. This includes potential dredging (removal of sediment)

EN010103-002330-NZT DCO 5.13 - Habitats Regulations Assessment Report (Clean) Oct 2022 (D9).pdf:46: However, the dredging activities are unlikely to result in temporary changes to the

EN010103-002330-NZT DCO 5.13 - Habitats Regulations Assessment Report (Clean) Oct 2022 (D9).pdf:46: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-002330-NZT DCO 5.13 - Habitats Regulations Assessment Report (Clean) Oct 2022 (D9).pdf:79: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-002330-NZT DCO 5.13 - Habitats Regulations Assessment Report (Clean) Oct 2022 (D9).pdf:80: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-002330-NZT DCO 5.13 - Habitats Regulations Assessment Report (Clean) Oct 2022 (D9).pdf:80: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-002384-Marine Management Organistation - Comments on any other information submitted at Deadline 10.pdf:4: to “dredge arisings” and request clarification on why this has been amended.

EN010103-002185-NZT DCO - 9.34 Updated List of Developments - Response to SWQ GEN.2.2(i) - Sept 2022 (D7).pdf:7: dredging

EN010103-002185-NZT DCO - 9.34 Updated List of Developments - Response to SWQ GEN.2.2(i) - Sept 2022 (D7).pdf:17: Associated dredging operations to create completed and the Harbour Facilities the Harbour facilities will

EN010103-002185-NZT DCO - 9.34 Updated List of Developments - Response to SWQ GEN.2.2(i) - Sept 2022 (D7).pdf:27: capital dredging (to deepen the northern half 7/VC (ES) available shall be

EN010103-002185-NZT DCO - 9.34 Updated List of Developments - Response to SWQ GEN.2.2(i) - Sept 2022 (D7).pdf:27: berth pocket), offshore disposal of dredged

EN010103-002635-NZT DCO 8.4 - MMO SoCG - Final (signed) - Nov 2022 (D13).pdf:4: Bay) and any localised dredging required to

EN010103-002635-NZT DCO 8.4 - MMO SoCG - Final (signed) - Nov 2022 (D13).pdf:9: pipeline to the Tees Bay) and any localised dredging required to support the specific

EN010103-002635-NZT DCO 8.4 - MMO SoCG - Final (signed) - Nov 2022 (D13).pdf:10: planning and licensing for marine construction, deposits and dredging that may

EN010103-001143-NZT DCO 6.4.32 ES Vol III Appendix 14D Subtidal Benthic Ecology.pdf:4:14.1.5 This report is not intended to formally characterise material for dredge and

EN010103-001143-NZT DCO 6.4.32 ES Vol III Appendix 14D Subtidal Benthic Ecology.pdf:4: requirement for pre-construction sampling should dredging works be

EN010103-001143-NZT DCO 6.4.32 ES Vol III Appendix 14D Subtidal Benthic Ecology.pdf:17:14.3.4 The Cefas guidelines relate to the disposal of dredge material. There are two

EN010103-001143-NZT DCO 6.4.32 ES Vol III Appendix 14D Subtidal Benthic Ecology.pdf:17: general, contaminant levels in dredged material which fall below (AL1) are

EN010103-001143-NZT DCO 6.4.32 ES Vol III Appendix 14D Subtidal Benthic Ecology.pdf:17: of no concern. Levels above AL2 generally suggest that the dredged material

EN010103-001143-NZT DCO 6.4.32 ES Vol III Appendix 14D Subtidal Benthic Ecology.pdf:37: dredging Marine Licence (MLP/2015/00094) (PD Teesport Ltd, 2015). At the

EN010103-001143-NZT DCO 6.4.32 ES Vol III Appendix 14D Subtidal Benthic Ecology.pdf:41: (2003). The use of Action Levels in the Assessment of Dredged Material

EN010103-001143-NZT DCO 6.4.32 ES Vol III Appendix 14D Subtidal Benthic Ecology.pdf:42: International Maritime Organisation (IMO). Sampling of Dredged Material –

EN010103-001143-NZT DCO 6.4.32 ES Vol III Appendix 14D Subtidal Benthic Ecology.pdf:42: Guidelines for the Sampling and Analysis of Dredged Material Intended for

EN010103-001143-NZT DCO 6.4.32 ES Vol III Appendix 14D Subtidal Benthic Ecology.pdf:42: OSPAR. (1998). OSPAR Guidelines for the Management of Dredged

EN010103-002177-NZT DCO 6.4.49 - ES Vol III Appendix 25A Commitments Register Sept 2022(D7) (Tracked).pdf:75: • Should any preparatory dredging be required,

EN010103-002177-NZT DCO 6.4.49 - ES Vol III Appendix 25A Commitments Register Sept 2022(D7) (Tracked).pdf:75: disposal site. Disposal of dredged material would

EN010103-001151-NZT DCO 6.4.49 ES Vol III Appendix 25A Commitments Register.pdf:61:  Should any preparatory dredging be required, material shall be disposed of at a licensed

EN010103-001151-NZT DCO 6.4.49 ES Vol III Appendix 25A Commitments Register.pdf:61: marine disposal site. Disposal of dredged material would be undertaken in accordance with

EN010103-002405-NZT DCO - 9.34 Updated List of Developments - Oct 2022 (D11) (Clean).pdf:7: Associated dredging waste water works

EN010103-002405-NZT DCO - 9.34 Updated List of Developments - Oct 2022 (D11) (Clean).pdf:18: Associated dredging operations to create be completed and the Harbour the Harbour facilities will materially new or materially

EN010103-002405-NZT DCO - 9.34 Updated List of Developments - Oct 2022 (D11) (Clean).pdf:26: capital dredging (to deepen the northern half 7/VC (ES) available shall be

EN010103-002405-NZT DCO - 9.34 Updated List of Developments - Oct 2022 (D11) (Clean).pdf:26: berth pocket), offshore disposal of dredged

EN010103-001087-NZT DCO 6.4.12 ES Vol III Appendix 10A Annex B Part 14 EC2_F.pdf:75: Silt And Dredgings

EN010103-000831-NZT DCO 5.3 - Planning Statement.pdf:27: Associated dredging waste water works

EN010103-000831-NZT DCO 5.3 - Planning Statement.pdf:36: • Safeguarding of Port and Rail Facilities (Marine Dredged Sand & Gravel

EN010103-001280-Rule 6 Letter.pdf:43: dredging/piling activities by others.

EN010103-001280-Rule 6 Letter.pdf:43: dredged sediment and drilling spoil;

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:77: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:79: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:79: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:79: 5.—(1) The substances authorised for disposal include dredge arisings.

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:87:months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:87:characterisation of material proposed for dredging.

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:87: (3) Dredging and disposal must not take place until written approval is provided by the MMO.

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:88: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:88: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:89:dispose of dredged material within the Order limits seaward of MHWS but outside of disposal site

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:90:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:91: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:93: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:93: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:94: 5.—(1) The substances authorised for disposal include dredge arisings.

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:101:months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:101:characterisation of material proposed for dredging.

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:101: (3) Dredging and disposal must not take place until written approval is provided by the MMO.

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:102: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:102: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:103:dispose of dredged material within the Order limits seaward of MHWS but outside of disposal site

EN010103-001214-NZT DCO 2.1 - Draft Development Consent Order - Oct 2021 Rev.2.0.pdf:104:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-001850-5.13 - HRA Report (Tracked) - June 2022(D3).pdf:45: survey, dredging and discharge points and any associated movements of marine

EN010103-001850-5.13 - HRA Report (Tracked) - June 2022(D3).pdf:46: the Proposed Development. This includes potential dredging (removal of sediment)

EN010103-001850-5.13 - HRA Report (Tracked) - June 2022(D3).pdf:46: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-001850-5.13 - HRA Report (Tracked) - June 2022(D3).pdf:76: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-001850-5.13 - HRA Report (Tracked) - June 2022(D3).pdf:77: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-001850-5.13 - HRA Report (Tracked) - June 2022(D3).pdf:77: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-002565-NZT DCO 6.3.12 - ES Vol II Figure 7-1 Local Plan Areas Nov 2022 (D12).pdf:1: MWC4, MWC5 Marine dredged Sand and

EN010103-001861-9.14 - Assessment against North East Marine Plan - June 2022(D3).pdf:13: NE-DD-1 In areas of authorised dredging activity, including Dredge areas, and the area surrounding these that are required for The impact of the Proposed Development on dredging in Tees Bay

EN010103-001861-9.14 - Assessment against North East Marine Plan - June 2022(D3).pdf:13: Dredging and those subject to navigational dredging, proposals dredge activity to take place, may be adversely impacted by new has been assessed as part of Appendix 20B Navigational Risk

EN010103-001861-9.14 - Assessment against North East Marine Plan - June 2022(D3).pdf:13: they are compatible with the dredging activity. or egress from these sites. NE-DD-1 ensures continued safe access appropriate mitigation has been identified.

EN010103-001861-9.14 - Assessment against North East Marine Plan - June 2022(D3).pdf:13: significant adverse impacts on dredge activities, such as the need

EN010103-001861-9.14 - Assessment against North East Marine Plan - June 2022(D3).pdf:13: for related vessels to navigate to and from authorised dredge areas.

EN010103-001861-9.14 - Assessment against North East Marine Plan - June 2022(D3).pdf:13: NE-DD-2 Proposals that cause significant adverse impacts Disposal sites, and the surrounding areas that are required for the The Proposed Development will not interact with licensed dredging

EN010103-001861-9.14 - Assessment against North East Marine Plan - June 2022(D3).pdf:13: Dredging and on licensed disposal sites should not be disposal activity to take place, may be adversely impacted by new disposal sites.

EN010103-001861-9.14 - Assessment against North East Marine Plan - June 2022(D3).pdf:14: NE-DD-3 Proposals for the disposal of dredged material As a result of dredging activity, disposal of dredge material is often Schedules 10 and 11 (Deemed Marine Licence) of the draft DCO [AS-

EN010103-001861-9.14 - Assessment against North East Marine Plan - June 2022(D3).pdf:14: Dredging and must demonstrate that they have been assessed required, whether this is direct disposal as a last resort in the waste 136] includes provision for the appropriate disposal of dredged

EN010103-001861-9.14 - Assessment against North East Marine Plan - June 2022(D3).pdf:14: need to identify new dredge disposal sites, ensures that proposals have considered all steps within the waste

EN010103-001861-9.14 - Assessment against North East Marine Plan - June 2022(D3).pdf:14: including for alternative use sites, proposals hierarchy prior to the disposal of dredge material as a last resort.

EN010103-001861-9.14 - Assessment against North East Marine Plan - June 2022(D3).pdf:14: practice and guidance. use should be supported. The establishment of new dredge disposal

EN010103-001861-9.14 - Assessment against North East Marine Plan - June 2022(D3).pdf:14: the designation of new dredge disposal sites. This is required as the

EN010103-002310-NZT DCO 6.4.5 - ES Vol III Appendix 5A - Framework CEMP (Tracked) Oct 2022 (D9).pdf:37: • Should any preparatory dredging be required, material shall be

EN010103-002310-NZT DCO 6.4.5 - ES Vol III Appendix 5A - Framework CEMP (Tracked) Oct 2022 (D9).pdf:38: receive material similar to that which is likely at the proposed dredge

EN010103-002310-NZT DCO 6.4.5 - ES Vol III Appendix 5A - Framework CEMP (Tracked) Oct 2022 (D9).pdf:38: locations. Disposal of dredged material would be undertaken in

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:82: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:84: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:84: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:84: 5. The substances authorised for disposal include dredge arisings.

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:87:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:87:characterisation of material proposed for dredging.

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:87:applications and must be carried out at least 6 weeks prior to the commencement of dredging

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:87: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:88: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:88: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:90:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:92: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:94: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:94: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:95: 5. The substances authorised for disposal include dredge arisings.

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:100:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:100:characterisation of material proposed for dredging.

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:100:applications and must be carried out at least 6 weeks prior to the commencement of dredging

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:100: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:100: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:100: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001996-NZT DCO 2.1 - Draft DCO - August 2022(D5).pdf:103:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-001081-NZT DCO 6.4.12 ES Vol III Appendix 10A Annex B Part 8 EC1_H.pdf:27: Silt And Dredgings

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:39: to support various recent dredging proposals and developments around the

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:39: dredged material. These give an indication of sediment quality in the Tees

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:51: dredged channel in the

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:55: poisoning from disturbed dredged

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:64: the dredged channel, although the

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:64: plume (for DIN) to enter the mouth of the estuary, at depth within the dredged

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:67: is pulled into the dredged channel only).

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:75: • Preliminary dredge;

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:80: • Dredging of a pocket for emplacement of the outfall head;

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:105: dredged channel at the mouth of the estuary.

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:105: small areas within the Tees Estuary at Tees Mouth, specifically in the dredged

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:105: the lower half of the water column of the dredged channel of the Tees Estuary

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:108: the mouth of the estuary, in the dredged

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:114: effect is concentrated in the lower half of the water column of the dredged

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:135: to support various recent dredging proposals and developments around the

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:135: disposal of dredged material. These give an indication of sediment quality in

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:135: dredged material below Action Level 1 are of no concern and are unlikely to

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:135: However, dredged material with contaminant levels above Action Level 2 is

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:135:D.1.2 Samples were collected in 2017 and 2018 to support dredging at Seaton Port

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:136: dredged samples from the Tees Approach Channel were generally less than

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:182: Mouth specifically in the dredged channel of the Tees where average DIN concentrations

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:182: this effect is concentrated in the lower half of the water column of the dredged channel of the

EN010103-002423-NZT DCO - 6.4.11 ES Vol III Appendix 9C WFD Assessment - Oct 2022 (D11) (Clean).pdf:184: Mouth area by up to 2.5% within the dredged channel of the river in the bottom half of the water

EN010103-001113-NZT DCO 6.4.29 ES Vol III Appendix 14A Intertidal Benthic Ecology Survey Report.pdf:21:14.3.19 The Cefas guidelines relate to the disposal of dredge material. In general,

EN010103-001113-NZT DCO 6.4.29 ES Vol III Appendix 14A Intertidal Benthic Ecology Survey Report.pdf:21: contaminant levels in dredged material which fall below Action Level 1 (AL1)

EN010103-001113-NZT DCO 6.4.29 ES Vol III Appendix 14A Intertidal Benthic Ecology Survey Report.pdf:21: suggest that the dredged material is not suitable for sea disposal.

EN010103-001113-NZT DCO 6.4.29 ES Vol III Appendix 14A Intertidal Benthic Ecology Survey Report.pdf:33: (2003). The use of Action Levels in the Assessment of Dredged Material

EN010103-001113-NZT DCO 6.4.29 ES Vol III Appendix 14A Intertidal Benthic Ecology Survey Report.pdf:34: OSPAR. (1998). OSPAR Guidelines for the Management of Dredged

EN010103-002257-NZT DCO - 5.13 - HRA (Clean) - Sept 2022(D8).pdf:45: survey, dredging and discharge points and any associated movements of marine

EN010103-002257-NZT DCO - 5.13 - HRA (Clean) - Sept 2022(D8).pdf:47: the Proposed Development. This includes potential dredging (removal of sediment)

EN010103-002257-NZT DCO - 5.13 - HRA (Clean) - Sept 2022(D8).pdf:47: However, the dredging activities are unlikely to result in temporary changes to the

EN010103-002257-NZT DCO - 5.13 - HRA (Clean) - Sept 2022(D8).pdf:47: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-002257-NZT DCO - 5.13 - HRA (Clean) - Sept 2022(D8).pdf:78: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-002257-NZT DCO - 5.13 - HRA (Clean) - Sept 2022(D8).pdf:79: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-002257-NZT DCO - 5.13 - HRA (Clean) - Sept 2022(D8).pdf:79: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:82: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:84: (ii) dredging campaign(s) facilitating the removal of material from the seabed required for

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:84: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 – “Tees

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:84: 5. The substances authorised for disposal include dredge arisings.

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:87:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:87:characterisation of material proposed for dredging.

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:87:applications and must be carried out at least 6 weeks prior to the commencement of dredging

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:87: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:88: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:88: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:90:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the disposal

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:92: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:94: (ii) dredging campaign(s) facilitating the removal of material from the seabed required for

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:94: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 – “Tees

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:95: 5. The substances authorised for disposal include dredge arisings.

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:100:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:100:characterisation of material proposed for dredging.

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:100:applications and must be carried out at least 6 weeks prior to the commencement of dredging

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:100: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:100: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:100: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001997-NZT DCO 2.1 - Draft DCO (Comparison with July 2022) - August 2022(D5).pdf:103:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the disposal

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:89: “disposal” means the deposit of dredge arisings at a disposal site carrying reference TY160 –

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:89: “dredge arisings” means inert material of natural origin, produced during dredging;

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:90: proposed for dredging as part of the licenced activities;

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:91: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:91: (iii) the combined total disposal of up to 500m3 of dredge arisings across each of the

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:93: deposit of dredge arisings; and

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:93: from which the removal or deposit of dredge arisings are to be made.

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:94:commencement of dredging activities.

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:94:be submitted to the MMO at least 6 weeks prior to the commencement of dredging activities.

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:94: (4) No dredging and disposal activities may be undertaken until the details of sediment sampling

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:95: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:98: 25. The relevant undertaker must ensure dredge arisings are disposed of within the extent of the

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:100: “disposal” means the deposit of dredge arisings at a disposal site carrying reference TY160 –

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:100: “dredge arisings” means inert material of natural origin, produced during dredging;

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:101: proposed for dredging as part of the licenced activities;

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:102: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:102: (iii) the disposal of up to 500m3 of dredge arisings at each of the disposal sites carrying

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:105: deposit of dredge arisings; and

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:105: from which the removal or deposit of dredge arisings are to be made.

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:106:commencement of dredging activities.

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:106:be submitted to the MMO at least 6 weeks prior to the commencement of dredging activities.

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:106: (4) No dredging and disposal activities may be undertaken until the details of sediment sampling

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:106: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:110:during dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:171:(f) details of the method location and extent of any dredging, a technical assessment of the

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:171: likely effect of the dredging on the protected crossing and any mitigation measures which

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:173: 196.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:211: (f) details of the method location and extent of any dredging, a technical assessment of the

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:211: likely effect of the dredging on the protected crossing and any mitigation measures which

EN010103-002525-NZT DCO 2.1 - Final draft DCO (Clean) - Nov 2022 (D12).pdf:213: 313.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a

EN010103-002245-NZT DCO - 9.34 Updated List of Developments (Clean) - Sept 2022(D8).pdf:7: Associated dredging waste water works

EN010103-002245-NZT DCO - 9.34 Updated List of Developments (Clean) - Sept 2022(D8).pdf:16: Associated dredging operations to create be completed and the Harbour the Harbour facilities will materially new or materially

EN010103-002245-NZT DCO - 9.34 Updated List of Developments (Clean) - Sept 2022(D8).pdf:25: capital dredging (to deepen the northern half 7/VC (ES) available shall be

EN010103-002245-NZT DCO - 9.34 Updated List of Developments (Clean) - Sept 2022(D8).pdf:25: berth pocket), offshore disposal of dredged

EN010103-001150-NZT DCO 6.4.48 ES Vol III Appendix 24C Statement of Combined Effects.pdf:14: zooplankton and the fish that prey upon them (Alldredge & Hammer, 1980). The Joint Nature Conservation Commission (JNCC) has released the

EN010103-001150-NZT DCO 6.4.48 ES Vol III Appendix 24C Statement of Combined Effects.pdf:21: • disposal of dredged material would be undertaken in accordance with deemed Marine

EN010103-001150-NZT DCO 6.4.48 ES Vol III Appendix 24C Statement of Combined Effects.pdf:35:24.6.12 Some limited dredging may be required for the onshore scheme within the

EN010103-001150-NZT DCO 6.4.48 ES Vol III Appendix 24C Statement of Combined Effects.pdf:35:24.6.14 Preparatory dredging as part of the onshore scheme would cover a very

EN010103-001150-NZT DCO 6.4.48 ES Vol III Appendix 24C Statement of Combined Effects.pdf:35: small area of sea bed and volumes of dredged material would be low (by

EN010103-001150-NZT DCO 6.4.48 ES Vol III Appendix 24C Statement of Combined Effects.pdf:36: Furthermore, both the drilling of pin piles and dredging as part of the onshore

EN010103-001150-NZT DCO 6.4.48 ES Vol III Appendix 24C Statement of Combined Effects.pdf:56: • dredging, trenching and other • species disturbance, injury A detailed ESIA process will be

EN010103-001150-NZT DCO 6.4.48 ES Vol III Appendix 24C Statement of Combined Effects.pdf:66:Alldredge & Hammer, 1980. Recurring aggregation of zooplankton by a tidal current.

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:4: Bay) and any localised dredging required to

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:9: pipeline to the Tees Bay) and any localised dredging required to support the specific

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:10: • planning and licensing for marine construction, deposits and dredging that may

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:23: EW noted the associated dredging and disposal works which may, as a worst-case, be

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:23: regular Teesport dredging. EW explained that individual sampling results had been

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:24: Marine potential cofferdam to create a safe/dry working area and possibly preparatory dredge. Does

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:24: Dredging & particularly sensitive in terms of Ecology; EW agreed that there are several areas of primary

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:24: works associated with the worst-case (i.e. dredging, HDD, open-cut trenching etc.). EW asked

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:30: confirmed that we understand that should dredging or works capable of

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:30: seems appropriate and that there is a lot of dredging which is taking

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:44: We understand that should dredging be required (unlikely), further

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:51: is an active dredge and disposal licence just outside

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:60:and Refinement removed the need for a preparatory dredge as we think that

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:75:Preparatory Dredge ✓ 

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:98:International Maritime Organisation (IMO). Sampling of Dredged Material – Guidelines for the Sampling and Analysis of

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:98:Dredged Material Intended for Disposal at Sea 2005.

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:100: • Intake: EW confirmed that the need for a preparatory dredge has

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:141:04 Dredging RG discussed the location of preparatory dredging, stating that, as set out in

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:141: Tees no longer forms part of the development. Dredging would only occur at

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:141: the South Bank project as there would be no capital dredging as part of this marine environment

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:141:08 Cumulative Effects RG reiterated that project activities such as piling and dredging were small in MMO to review

EN010103-002236-NZT DCO 8.4 - MMO SoCG (Tracked) - Sept 2022(D8).pdf:142: references. RG wanted to reiterate that the dredging will be small in extent within formal response

EN010103-002294-ExA Q2 Historic England.pdf:4: Horizontal Directional Drilling (HDD) tunnel with a pocket dredged for the outfall head, with rock armour placed around.

EN010103-002057-NZT DCO 5.13 - Habitats Regulations Assessment Report (Tracked) August 2022 (D6).pdf:45: survey, dredging and discharge points and any associated movements of marine

EN010103-002057-NZT DCO 5.13 - Habitats Regulations Assessment Report (Tracked) August 2022 (D6).pdf:47: the Proposed Development. This includes potential dredging (removal of sediment)

EN010103-002057-NZT DCO 5.13 - Habitats Regulations Assessment Report (Tracked) August 2022 (D6).pdf:47: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-002057-NZT DCO 5.13 - Habitats Regulations Assessment Report (Tracked) August 2022 (D6).pdf:81: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-002057-NZT DCO 5.13 - Habitats Regulations Assessment Report (Tracked) August 2022 (D6).pdf:82: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-002057-NZT DCO 5.13 - Habitats Regulations Assessment Report (Tracked) August 2022 (D6).pdf:82: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:76: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:78: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:78: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:78: 5.—(1) The substances authorised for disposal include dredge arisings.

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:81:months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:81:characterisation of material proposed for dredging.

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:81: (3) Dredging and disposal must not take place until written approval is provided by the MMO.

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:82: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:82: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:83:dispose of dredged material within the Order limits seaward of MHWS but outside of disposal site

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:84:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:85: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:87: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:87: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:87: 5.—(1) The substances authorised for disposal include dredge arisings.

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:93:months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:93:characterisation of material proposed for dredging.

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:93: (3) Dredging and disposal must not take place until written approval is provided by the MMO.

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:93: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:93: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:95:dispose of dredged material within the Order limits seaward of MHWS but outside of disposal site

EN010103-001472-NZT DCO 2.1 - Draft DCO - Apr 2022.pdf:95:dredging is disposed of within the extent of the Order limits seaward of MHWS, within the

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:78: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:80: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:80: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:80: 5.—5. The substances authorised for disposal include dredge arisings.

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:84:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:84:characterisation of material proposed for dredging.

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:84:dredging activities.

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:84: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:85: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:85: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:87:dispose of dredged material within the Order limits seaward of MHWS but outside of disposal site

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:87:produced during dredging is disposed of within the extent of the Order limits seaward of MHWS,

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:89: “disposal” means the deposit of dredged material at a disposal site carrying reference TY160 –

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:91: (ii) dredging campaign(s) facilitating the removal of material from the seabed required

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:91: (iii) the disposal of up to 500m3 of dredge arisings at disposal site reference TY160 –

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:92: 5.—5. The substances authorised for disposal include dredge arisings.

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:97:least six months prior to the commencement of dredging activities in order to provide an adequate

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:97:characterisation of material proposed for dredging.

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:97:dredging activities.

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:97: (3) Dredging and disposal must not take place until written approval is provided by the MMO

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:97: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:97: (a) methods of dredging to be employed and associated disposal arrangements;

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:99:dispose of dredged material within the Order limits seaward of MHWS but outside of disposal site

EN010103-001793-NZT DCO 2.1 - Draft DCO (Comparison with April 2022) - June 2022.pdf:100:produced during dredging is disposed of within the extent of the Order limits seaward of MHWS,

EN010103-001073-NZT DCO 6.4.12 ES Vol III Appendix 10A PSSR.pdf:19: occurred from inundation where fine fill (i.e. dredged sand) was suspected

EN010103-001073-NZT DCO 6.4.12 ES Vol III Appendix 10A PSSR.pdf:31: walls with estuary dredgings and industry wastes e.g., slag. The South Gare

EN010103-001073-NZT DCO 6.4.12 ES Vol III Appendix 10A PSSR.pdf:31: raised with industrial wastes and/or dredgings. Between 1964 and 1969 the

EN010103-001073-NZT DCO 6.4.12 ES Vol III Appendix 10A PSSR.pdf:31: main Tees Estuary channels were deepened with dredgings pumped into

EN010103-001073-NZT DCO 6.4.12 ES Vol III Appendix 10A PSSR.pdf:31: progressively filled by dredging of the Tees deep water channel which

EN010103-001073-NZT DCO 6.4.12 ES Vol III Appendix 10A PSSR.pdf:53: furnace slag; construction and demolition waste) and marine-dredged

EN010103-001073-NZT DCO 6.4.12 ES Vol III Appendix 10A PSSR.pdf:82: known that dredgings were used to reclaim land either side of the main

EN010103-001073-NZT DCO 6.4.12 ES Vol III Appendix 10A PSSR.pdf:82: slag walls and placement of hydraulic fill dredged from the River Tees.

EN010103-001073-NZT DCO 6.4.12 ES Vol III Appendix 10A PSSR.pdf:108: with estuarine dredgings (mud) within the cell wall with gravity

EN010103-001073-NZT DCO 6.4.12 ES Vol III Appendix 10A PSSR.pdf:123: from one of the works or another fill source, e.g. dredged

EN010103-001073-NZT DCO 6.4.12 ES Vol III Appendix 10A PSSR.pdf:217: is mainly composed of estuary dredgings or slag within reclaimed areas,

EN010103-001073-NZT DCO 6.4.12 ES Vol III Appendix 10A PSSR.pdf:218: estuary dredgings in the south and west, overlying Tidal Flat Deposits, these

EN010103-001073-NZT DCO 6.4.12 ES Vol III Appendix 10A PSSR.pdf:260: dredging) was placed as part of pre-

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:17:Dredging impacts: Consideration Dredging is no longer required for Not applicable

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:19:The MMO consider further The need for a preparatory dredge Not applicable.

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:19:The MMO would expect to see The need for a preparatory dredge Not applicable

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:20:The applicant has identified that The need for a preparatory dredge Not applicable

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:20:required for various dredging disposal of sediment is no longer

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:21: Able Seaton Berth Dredging (MLA/2015/00334/4), York Potash Harbour

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:25: need for maintenance dredging. Artificial and minor drains and ditches

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:48: to support various recent dredging proposals and developments around the

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:48: of dredged material. These give an indication of sediment quality in the Tees

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:48: Estuary and Teesmouth areas. In general, contaminant levels in dredged

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:48: marine licensing decisions and the dredged material is suitable for sea

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:48: disposal. However, dredged material with contaminant levels above Action

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:48:9.4.54 Samples were collected in 2017 and 2018 to support dredging at Seaton Port

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:49: suitable for disposal at sea. The concentration of metals in dredged samples

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:64: commercial activities (which also require maintenance dredging).

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:95: per annum (dry weight). Associated dredging operations to create berth.

EN010103-000895-NZT DCO 6.2.9 ES Vol I Chapter 9 Surface Water, Flood Risk and Water Resources.pdf:104: Able UK (2018). Seaton Port Dredge, Water Framework Directive

EN010103-001141-NZT DCO 6.4.30 ES Vol III Appendix 14B Fisheries and Fish Ecology Baseline Part 3.pdf:17: • scallop dredging;

EN010103-001141-NZT DCO 6.4.30 ES Vol III Appendix 14B Fisheries and Fish Ecology Baseline Part 3.pdf:18:14.5.11 Beam trawling, scallop dredging, drift and fixed netting, and gear using

EN010103-001141-NZT DCO 6.4.30 ES Vol III Appendix 14B Fisheries and Fish Ecology Baseline Part 3.pdf:18: dredging fishing method, whilst mackerel dominated the reported fish catch

EN010103-001141-NZT DCO 6.4.30 ES Vol III Appendix 14B Fisheries and Fish Ecology Baseline Part 3.pdf:19: Beam trawl Demersal trawl/seine Dredge Drift and fixed nets Gears using hooks Pots and traps

EN010103-001141-NZT DCO 6.4.30 ES Vol III Appendix 14B Fisheries and Fish Ecology Baseline Part 3.pdf:21: over 10 m fleet carries out more beam trawling and dredging, targeting

EN010103-001141-NZT DCO 6.4.30 ES Vol III Appendix 14B Fisheries and Fish Ecology Baseline Part 3.pdf:21:Dredge 1.0 8.4

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:10: refurbishment works  Dredging of pocket around existing

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:10:  Backfill of the dredged pocket around the

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:11: vessels such as dredger(s), work boat(s) and

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:21:EA, Scoping Opinion pg. 75, Dredging: Any Should dredging works be required as part of the

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:21:dredging works carried out between March and Proposed Development, they will be subject to a

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:21: potential effects arising from dredging are

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:26:over CEFAS level 1. 1 and 2. However, preparatory dredging within

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:26: material sampling before dredging works can

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:28: dredging and disposal activities.

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:34:14.4.36 In accordance with the Cefas guidelines for the disposal of dredged material,

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:34: of the MMO (and their advisors Cefas) who have consented multiple dredging

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:37: scallop dredging, drift and fixed netting, and gear using hooks, only

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:37: representing 88% of the total landed weight recorded for the scallop dredging

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:45:  where dredging and disposal is required, pre-construction sediment

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:45:14.5.21 Should any dredging be required (e.g. for the placement of the new discharge

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:45: displaced alongside the replacement outfall head using plough dredger or

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:45: proposed dredge locations. Disposal of dredged material would be undertaken

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:45: dredging and disposal specifically, this includes physical and/or chemical

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:52:  preparatory dredging for emplacement of a new outfall head for both the

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:53: from substrate loss (e.g. from dredging) and penetration (e.g. from anchoring

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:56:  Preparatory dredging to create a pocket for emplacement of a new

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:56: and disposal of dredged material within the marine environment;

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:56:14.6.35 In the event that dredging is required, this would be undertaken in accordance

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:56: with the conditions of a Marine Licence from the MMO; for dredging and

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:56:14.6.36 It is assumed that any dredged material from the Site shall be either placed

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:56: alongside the new outfall head (where a dredge pocket will be created for the

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:56: disposal site. Given the low predicted volume of dredged material for disposal

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:57: from PD Ports Teesport dredging operations, detailed dispersion modelling

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:58:14.6.44 The extent of impact due to the dredging around the outfall head location for

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:58: temporary. As the sediment at the dredge location is predominantly sand and

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:61:  dredging of pocket around new outfall head;

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:62: movements, dredging and drilling. For underwater sound impact

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:64:Dredging / Micro-bore Non impulsive 178 (rms) 15 Greene (1987) in

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:69: impulsive sound sources, including drilling of pin piles, dredging and vessel

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:69:Dredging / Micro-bore < 10 m 74 m

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:69:14.6.95 Both the drilling of pin piles and dredging may need to be undertaken in the

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:76: dredging vessels will not be stationary, though they may be restricted to a local

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:77: for dredging and general marine vessel movements, particularly for high

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:77: of drilling, dredging and marine vessels for longer than an hour.

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:77:Marine mammal Exposure Drilling of pin piles Dredging/MBT Marine vessel

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:78: 7356 m for dredging and 1000 m for pin pile drilling. This indicates that

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:83: site will include survey vessel(s), dredger(s), and workboat(s) and / or barge(s)

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:84: can be expected to include survey vessel(s), dredger(s), and workboat(s) and

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:85: The vessels expected to be used include survey vessel(s), dredger(s), and

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:85: dredgers, have the potential to restrict access to this area for commercial

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:104:14.9.16 Capital dredging in the Tees Estuary would be required as part of the York

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:104:14.9.17 Should dredging works occur concurrently within the Proposed Development,

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:104:14.9.18 However, dredging potentially required as part of the Proposed Development

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:104: dredging operations associated with these cumulative developments would

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:105: of pin piles and dredging as part of the Proposed Development, are to be

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:108: disturbance arising from substrate loss (e.g. dredging) and penetration (e.g.

EN010103-000900-NZT DCO 6.2.14 ES Vol I Chapter 14 Marine Ecology and Nature Conservation.pdf:122: Dredged Material. 6 pp.

EN010103-000917-NZT DCO 6.2.24 ES Vol I Chapter 24 Cumulative and Combined Effects.pdf:20: Associated dredging operations to create underway; all Visual Impact; Marine

EN010103-000917-NZT DCO 6.2.24 ES Vol I Chapter 24 Cumulative and Combined Effects.pdf:73:24.5.79 Capital dredging in the Tees Estuary would be required as part of the York

EN010103-000917-NZT DCO 6.2.24 ES Vol I Chapter 24 Cumulative and Combined Effects.pdf:74:24.5.80 Should dredging works from these developments occur concurrently with the

EN010103-000917-NZT DCO 6.2.24 ES Vol I Chapter 24 Cumulative and Combined Effects.pdf:74: receptors. Furthermore, direct effects caused by concurrent dredging may

EN010103-000917-NZT DCO 6.2.24 ES Vol I Chapter 24 Cumulative and Combined Effects.pdf:74:24.5.81 However, dredging potentially required as part of the Proposed Development

EN010103-000917-NZT DCO 6.2.24 ES Vol I Chapter 24 Cumulative and Combined Effects.pdf:74: dredging operations associated with these developments would occur

EN010103-000917-NZT DCO 6.2.24 ES Vol I Chapter 24 Cumulative and Combined Effects.pdf:74: both the drilling of pin piles and dredging as part of the Proposed

EN010103-002508-NZT DCO 7.16 - HRA for Change Request (Clean) - Nov 2022 (D12).pdf:44: survey, dredging and discharge points and any associated movements of marine

EN010103-002508-NZT DCO 7.16 - HRA for Change Request (Clean) - Nov 2022 (D12).pdf:46: Development. This includes potential dredging (removal of sediment) around the

EN010103-002508-NZT DCO 7.16 - HRA for Change Request (Clean) - Nov 2022 (D12).pdf:46: the dredging activities are unlikely to result in temporary changes to the abundance

EN010103-002508-NZT DCO 7.16 - HRA for Change Request (Clean) - Nov 2022 (D12).pdf:46: directly impacted as a result of dredging for the outfall head approximately 1km off-

EN010103-002508-NZT DCO 7.16 - HRA for Change Request (Clean) - Nov 2022 (D12).pdf:80: and associated overhead conveyor and capable of loading 12 million tons of bulk dry material per annum. Dredging activities will be

EN010103-002508-NZT DCO 7.16 - HRA for Change Request (Clean) - Nov 2022 (D12).pdf:81: pathways. While some dredging for the outfall head for the Proposed Development will be

EN010103-002508-NZT DCO 7.16 - HRA for Change Request (Clean) - Nov 2022 (D12).pdf:81: required, this will be very small in extent and physically widely separated from the dredging for

EN010103-001771-NZT DCO 9.8 - Appendix GH.1.2 Foundations Options Report - June 2022.pdf:11:sections divided by slag walls with estuary dredging and industry wastes, e.g. predominantly slag.

EN010103-001771-NZT DCO 9.8 - Appendix GH.1.2 Foundations Options Report - June 2022.pdf:11:to have been drained in the 1950’s and thereafter it is assumed raised with industrial wastes and/or dredging

EN010103-002311-NZT DCO 6.4.49 - ES Vol III Appendix 25A Commitments Register Clean Oct 2022 (D9).pdf:74: • Should any preparatory dredging be required,

EN010103-002311-NZT DCO 6.4.49 - ES Vol III Appendix 25A Commitments Register Clean Oct 2022 (D9).pdf:74: disposal site. Disposal of dredged material would

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:4: works, surveys and dredging.

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:11: • 35097/110302/2 (Dredging Licence – PD Teesport Limited);

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:11: • MLA/2015/00334/4 (Dredging Licence – Able UK Limited);

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:11: • MLA/2019/00151 (Proposed Dredge Footprint, Tees/Hartlepool - Inter

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:14:20.4.44 Beam trawling, scallop dredging, drift and fixed netting, and gear using

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:14: dredging fishing method, whilst mackerel dominated the reported fish catch

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:16: • A preparatory dredge to create a pocket for the emplacement of an outfall head;

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:16: • Works to position the outfall head within the dredge pocket;

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:16: • Backfill of the dredged pocket around the outfall head;

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:21: • Dredging: the presence of a dredger within the Tees Bay may constrain

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:21: rock armour are as per those described for dredging.

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:21: • Work boat(s): as with dredging, work boat(s) within the Tees Bay may

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:23: established berth, pre-docking bathymetry and/or dredging will not be

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:25:Water Discharge Dredging

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:25:Connection- In a flood and sink scenario, a pocket would be dredged at a defined

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:25:Treated Water Outfall be a single campaign of dredging. The operation of the vessel could

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:25: very limited area of the dredger operations.

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:25: In the event of a dredger losing power, MAR-B, MAR-C, MAR-D, MAR-D

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:25: MAR-E vessel type toward a dredger is seen as highly unlikely.

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:25: threaten cables and pipelines; dredging and construction works within the

EN010103-001134-NZT DCO 6.4.45 ES Vol III Appendix 20B- Navigational Risk Assessment Part 1.pdf:27: between these vessels and third parties. Mitigation, in the form of dredging,

EN010103-002322-NZT DCO 9.36 - Nutrient Nitrogen Briefing Paper Clean Oct 2022 (D9).pdf:21: above background in some locations but these are confined to the dredged

EN010103-002322-NZT DCO 9.36 - Nutrient Nitrogen Briefing Paper Clean Oct 2022 (D9).pdf:124:which included the Philips Inset Dock and dredged areas of the Tees river channel.

EN010103-002322-NZT DCO 9.36 - Nutrient Nitrogen Briefing Paper Clean Oct 2022 (D9).pdf:215: Mouth specifically in the dredged channel of the Tees where average DIN concentrations

EN010103-002322-NZT DCO 9.36 - Nutrient Nitrogen Briefing Paper Clean Oct 2022 (D9).pdf:215: this effect is concentrated in the lower half of the water column of the dredged channel of the

EN010103-002322-NZT DCO 9.36 - Nutrient Nitrogen Briefing Paper Clean Oct 2022 (D9).pdf:217: Mouth area by up to 2.5% within the dredged channel of the river in the bottom half of the water

EN010103-001332-NZT DCO 7.8.1 - Environmental Statement Addendum - Volume I - Apr 2022.pdf:86: capable of loading 12 million tons of bulk dry material per annum. Dredging

EN010103-001912-NZT DCO 9.17 - Hydrogeological Impact Assessment July 2022 (D4).pdf:8: by fill and made ground, as a result of the deposition of dredgings and of waste

EN010082-000361-Appendix A - DCO 6.3.14_Tees CCPP_ES_Annex H_HRA_UPDATED 230418.pdf:5: Zones with Particular Attention to Port Development and Dredging. Advice Note 10 EC

EN010082-000202-EN010082-6.3.12-ES Annex G1-Effects of Air Quality-Final-November 2017.pdf:3: Zones with Particular Attention to Port Development and Dredging. Advice Note 10 EC

EN010082-000180-EN010082-6.2.9-ES Chapter 9-Ecology and Nature Conservation-Final-November 2017.pdf:19: Zones with Particular Attention to Port Development and Dredging. Advice Note 10 EC

EN010082-000205-EN010082-6.3.15-ES Annex H-HRA-Final-November 2017.pdf:6: Zones with Particular Attention to Port Development and Dredging. Advice Note 10 EC

TR030002-001864-The York Potash Harbour Facilities Draft Amendment Order.pdf:2: (iii) dredging of up to 750,000 cubic metres of material from the approach channel and

TR030002-001873-Decision holding letter (2).pdf:1: construction and operation of a quay structure; the dredging of the approach

TR030002-001873-Decision holding letter (2).pdf:2: © dredging of up to 750,000 cubic metres of material from the approach

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:19: • Capital dredging (i.e. deepening beyond the current maintained depth) of a section of the approach

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:20:2.6.10 Capital dredging of the berth pocket (and approaches to the pocket) would be required in order to allow

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:20: the maximum design vessels proposed access to the port terminal. This dredging would be undertaken

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:20: in two phases and is linked to the phased construction of the quay. Dredging would also be required to

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:20: dredging, capital dredging would be required within the approach channel in order to provide the

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:20: required access for vessels in addition to the Phase 2 dredging of the berthing pocket.

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:20:2.6.11 Within the area that would require dredging in the current approach channel, the existing depth of the

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:20: this point to the mouth of the Tees. The approach channel dredging required would be the same for

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:20: approximately 11.6m bCD. It is proposed that dredging to 16m bCD would be undertaken to create the

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:21:2.6.13 The total volume of material to be dredged is estimated at up to approximately 1.15Mm3 to create the

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:21: quay option, there is no requirement to create the stable slope and the dredge volume to create the

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:21: 500,000m3 of material would be dredged from the approach channel. The maximum dredge volume is

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:26:Marine sediment and The tidal Tees estuary between Teesmouth and the Tees Barrage and Tees Bay, incorporating the existing dredged material disposal sites.

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:28: 172 Maintenance dredging within the Tees Estuary 0

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:28: (terminal and capital dredging)

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:50: maintenance dredging and potential impacts to bird feeding and interruption of

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:50: sediment flow to Coatham Sands due to offshore disposal of maintenance dredged

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:51: dredging and piling. Potential implications for water levels in Bran Sands lagoon

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:61: uncontaminated and contaminated sediments during piling or dredging activities. Piling noise

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:62: maintenance dredging, and emissions to air associated with the transport and handling of

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:64:172 - Maintenance dredging within the Tees In-combination effects to marine water quality and food resources have the potential to Teesmouth and Y

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:64:Estuary arise should maintenance dredging be undertaken at the same time as the proposed Cleveland Coast

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:64: dredging works associated with the harbour facility. SPA and Ramsar

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:64: between sediment plumes created during capital dredging (with potential effects on food

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:64: between sediment plumes created during capital dredging (with potential effects on prey

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:78: features due to noise and visual disturbance, potential reductions in water quality due to dredging and

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:78: phase noise disturbance, creation of a sediment plume during capital dredging and changes to the

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:78: disturbance, creation of a sediment plume during capital dredging and changes to the hydrodynamic

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:78: • Maintenance dredging within the Tees Estuary, from potential effects to marine water quality and

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:79: o Maintenance dredging within the Tees Estuary, due to potential effects to marine water quality

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:81: • release of uncontaminated and contaminated sediments during piling / dredging; and,

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:82: dredging.

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:82: dredging, piling, reclamation (for the solid quay only) and revetment installation (for the open quay

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:83: propagation given that the majority of capital dredging is limited to the deepening of a relatively short

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:83: section of an already dredged approach channel. In addition, no dredging is proposed at the mouth of

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:83:10.3.13 Given that no capital dredging of the approach channel is proposed, it is predicted that there would be

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:84: Figure 10.1 Change in wave height (m) due to dredging and solid quay at high water, 5 year return period

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:84:10.3.16 The capital dredging of the section of approach channel adjacent to the proposed quay is responsible

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:84: adjacent to the works, suggesting that the dredging is predicted to draw some of the flow to the south

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:84: than 0.05m/s are predicted across the section of dredged approach channel. Figures 10.2 and 10.3

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:85:Figure 10.2 Change in depth average currents due to dredging and the solid quay structure at time of peak

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:85:Figure 10.3 Change in depth average currents due to dredging and the solid quay structure at time of peak

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:86: new dredged approaches and extended area of -14.1m CD channel. This modelling predicted a

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:86:10.3.21 In terms of maintenance dredging requirement of the proposed berth pocket and approach channel,

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87: regime would not alter the present frequency of, or methodology used for, maintenance dredging and

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87: on suspended sediment concentration in the water column during capital dredging, sediment deposition

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87: Suspended sediment concentration in the water column during capital dredging

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87:10.3.23 Modelling of the dispersion of sediment during capital dredging has been undertaken for a range of

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87: and neap tides). The modelling simulated dredging using three types of dredging plant to capture the

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87: most likely dredge method based on the bed material to be dredged throughout the proposed dredging.

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87: The dredgers that were simulated in the modelling are:

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87: • backhoe dredger (BHD) in the river channel;

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87: • trailing suction hopper dredger (TSHD) at the berth and quay construction area; and,

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87: • cutter suction dredging (CSD) (with pumping into a barge) at the berth and quay construction area.

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87:10.3.24 The locations of the simulated dredging operations are shown in Figure 10.5. The capital dredging

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87: sediment concentration above background concentrations in the vicinity of the dredger is predicted to

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87: be significantly lower for the backhoe dredger (greater than 10mg/l) in comparison with the CSD

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87: sediment outwith the proposed dredge footprint are only a few tens of mg/l at most, on average. The

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87: 50mg/l above background may be anticipated in the channel, 1.5km either side of the dredging works.

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:87: and section of approach channel that would be dredged. Sediment cores were taken from each station,

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:88: dredged as part of the Harbour facility proposals is currently being assessed. However, an initial

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:88: data, the implications for the proposed scheme (e.g. method of dredging) will be discussed with the

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:88: Figure 10.5 Locations of simulated dredging operations

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:88: proposed dredge footprint was predicted, with greater deposition in the immediate vicinity of dredging

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:89: 10.9 for dredging with TSHD in low river flow, spring tide conditions.

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:89: background, backhoe dredger in low river flow, spring tide

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:89:10.3.29 During the operational phase, maintenance dredging would be required to maintain the dredged depth

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:89: used for, maintenance dredging.

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:90: background, TSHD dredger in low river flow, spring tide

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:91: background, CSD dredger in low river flow, spring tide

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:92: Figure 10.9 Predicted fine sediment deposition after three tides, TSHD dredging in low river flow, spring

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:94:10.3.46 With regard to underwater noise, the modelling results from the proposed capital dredging operations

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:95: (avoidance reaction) would occur in fish species in an area that is highly localised to the dredger, and

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:95: any avoidance reactions would be temporary for the duration of dredging.

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:95:10.3.47 During the operational phase, there would be no change to the maintenance dredging method or

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:95: maintenance dredging for the proposed berth pocket. The underwater noise modelling of the proposed

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:96: • Operatives for dredging works: 5 to 10.

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:99:10.4.2 The predicted effects of the proposed marine terminal and capital dredging on the hydrodynamic and

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:100:10.4.8 The suspension and dispersion of sediment during capital dredging would temporarily affect water

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:100: immediate dredge footprint.

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:100:10.4.10 Given that the initial assessment of the quality of marine sediments that would be dredged has revealed

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:100: suspension and dispersion of sediment during capital dredging. This would reduce the spatial extent of

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:100: quality data for the dredging methodology have been assessed, the lighting assessment and noise

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:124: • Maintenance dredging within the Tees estuary.

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:124: • NGCT (terminal and capital dredging).

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:124: i. Maintenance dredging within the Tees estuary

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:124:11.4.3 PD Teesport carries out maintenance dredging in the reaches of the river shown in Figure 11.1. Most

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:124: dredging occurs in the approach channel and low-middle estuary in order to maintain access to berth

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:124: pockets and impounded docks. TSHDs are currently used for the majority of the dredging, supported

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:124: by grab dredging and ploughing where required (Royal HaskoningDHV, 2014).

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:124:11.4.4 In 2013, the total volume of maintenance dredging was approximately 1.22 million m3; this figure is very

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:125: jetty. The project would include capital dredging to deepen the existing QEII berth from 10.9m bCD to

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:125: for a period of approximately 120 days (17 weeks). The total volume of capital dredging is expected to

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:125:11.4.8 Capital dredging is proposed within the existing dredged approach channel to deepen the channel by

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:125: quay face. The total volume of material that will arise from the capital dredging will be approximately

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:126: Figure 11.1 Reaches of the Tees where maintenance dredging is undertaken (Royal

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:127: • effects on marine water quality during capital dredging; and

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:127: maintenance dredging

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:127: dredging associated with various projccts has been assessed in detail in Part 5 Cumulative Impact

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:127:11.4.17 It was concluded that there is only the potential for a cumulative effect to occur should the dredging

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:128: fish compared with the effect of the projects in isolation. Should the capital dredging for the three

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:128: dredge is more extensive and extends into Seaton Channel and onto Seal Sands. It was concluded

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:128: sediment deposition was predicted during capital dredging for the Harbour facility.

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:128:11.4.21 Maintenance dredging is targeted within areas that require dredging to maintain navigable depths and,

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:128: predicted to be insignificant. There would be no maintenance dredging taking place at the location of

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:128: the proposed Harbour facility when the construction and capital dredging works are being undertaken

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:128: and, therefore, should maintenance dredging be undertaken elsewhere in the Tees estuary, there is a

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:128: low potential for suspended sediment arising from maintenance dredging to interact with a sediment

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:128: plume from capital dredging. It should be noted that it is highly unlikely that maintenance dredging

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:128: would be scheduled when a significant capital dredging project, with the associated release of fine

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:128: dredging are proposed as part of the QEII Berth Development and the NGCT projects. For the former

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:128: project, mitigation comprises the use of specialist dredging equipment (i.e. an enclosed grab loading

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:128: into a sealed barge) for dredging of unconsolidated material to minimise resuspension in the water

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:128: dredged sediment, and this measure would limit sediment release into the water column as far as

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:129:11.4.23 As set out in Section 10.3, the quality of the sediment to be dredged as part of the Harbour facility

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:129: analysis of the data, the implications for the proposed scheme (e.g. method of dredging) will be

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:129: the capital dredging as a result of these discussions.

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:129: subject to maintenance dredging and offshore disposal as part of maintenance of the channel.

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:129: that requires maintenance dredging. The predictive modelling for the Harbour facility concluded that

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:129: was predicted that there would be an increase in maintenance dredging requirement of the same

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:129: for the scheme in isolation) in maintenance dredge requirement in the Harbour facility berthing pocket

TR030002-000571-Doc 7.3 Appendix 3 - Habitats Regulation Assessment Sept 2014.pdf:130:11.4.30 It is concluded that there would be no combined effect with respect to the maintenance dredging

TR030002-000656-Doc 3.8B - Indicative Layout - Solid Quay Construction - Southern Route.pdf:1: DREDGED AREA

TR030002-000656-Doc 3.8B - Indicative Layout - Solid Quay Construction - Southern Route.pdf:1: TING DREDGED SIDE SLOPES

TR030002-000346-York Potash Ltd.pdf:1:• Dredging of the berth area;

TR030002-000346-York Potash Ltd.pdf:2:• Dredging of the berth area;

TR030002-000346-York Potash Ltd.pdf:3: • Dredging of the berth area; Wanted Bathrooms PLASTIC CHAIR Kartell DIV above 3 drawers £60 Principles size 12 worn

TR030002-000346-York Potash Ltd.pdf:4: 07786 64.1114. • Dredging of the berth area;

TR030002-000499-Section 17 App 17.1 Flood Risk Assessment.pdf:7:  A port terminal on the southern bank of the Tees estuary (with capital dredging of an

TR030002-000499-Section 17 App 17.1 Flood Risk Assessment.pdf:16: increase of 1 to 2mm on upstream tidal levels as a result of the dredging required for the

TR030002-000481-Section 12 App 12.2 Transport Assessment_1 of 2.pdf:5:  A port terminal on the southern bank of the Tees estuary (with capital dredging of an associated

TR030002-000481-Section 12 App 12.2 Transport Assessment_1 of 2.pdf:7:  A port terminal (i.e. quay) on the southern bank of the Tees estuary (with capital dredging of a

TR030002-000481-Section 12 App 12.2 Transport Assessment_1 of 2.pdf:7:2.1.7 Capital dredging of the berth pocket (and approaches to the pocket) would be required in order to allow

TR030002-000481-Section 12 App 12.2 Transport Assessment_1 of 2.pdf:7: the maximum design vessels proposed access to the port terminal. This dredging would be undertaken

TR030002-000481-Section 12 App 12.2 Transport Assessment_1 of 2.pdf:8: in two phases and is linked to the proposed phased construction of the quay. Dredging would also be

TR030002-000481-Section 12 App 12.2 Transport Assessment_1 of 2.pdf:34:5.2.6 The material arising from the capital dredging of the berth pocket and approaches would be removed

TR030002-001873-Decision holding letter (3).pdf:1: construction and operation of a quay structure; the dredging of the approach

TR030002-001873-Decision holding letter (3).pdf:2: © dredging of up to 750,000 cubic metres of material from the approach

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:30: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:30: “dredging” means using any device to move material (whether or not suspended in water) from

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:30: “gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:31: © dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:32: (b) dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:32: “sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:32: “silt” means dredged materials with a diameter of at least 31.25 and less than 62.5 micrometres;

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:55: (3) dredging of approach channel and berth pocket; and

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:62:1 1, 2, 4 and 9 (i) Dredging;

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:62:2, 3 1 and 9 (i) Dredging; and

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:62: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:62:8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) Dredging;

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:63:11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) Dredging;

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:65:12 and 13 1, 4, 5, 9 and 10 (i) Dredging;

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:69: 1 1, 2, 4 and 9 (i) Dredging;

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:70: 2, 3 1 and 9 (i) Dredging; and

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:70: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:70: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) Dredging;

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:71:11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) Dredging;

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:73: 12 and 13 1, 4, 5 and 9 (i) Dredging;

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:83: Capital dredging and disposal

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:83: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:83: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:83:Dredged material type Open quay (m3) Solid quay (m3)

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:83: (3) For phases 1 and 2, the dredging of the contaminated silts will be undertaken using enclosed

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:83: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing Suction

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:83:Hopper Dredger (TSHD).

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:84: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) will be undertaken

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:84:using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2, dredging of sands

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:84:and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:84: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:84:(TY 150)offshore dredged material disposal sites—

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:87: Capital dredging, disposal conditions and debris

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:87: 34. The undertaker must agree a capital dredge and disposal strategy with the MMO at least 4

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:87: 35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:87: 36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:87: 37. The undertaker must ensure that any man-made material is separated from the dredged

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:87:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:117: (e) commencing any dredging operation,

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:117:or dredging operation or altered drawings.

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:117: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:117:paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:118:Capital dredge and disposal Schedule 5, paragraph 35 The whole strategy

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:120: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:123: may reasonably be put in dredging the river to remove the sedimentation or in making

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:123: (b) carry out the necessary dredging at its own expense and subject to the prior approval of

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:124:under any duty to dredge the approaches from the river channel to the quay, or the berthing pocket

TR030002-000778-151009 TR030002 Tata Steel UK Limited and Others.pdf:125: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the Tees

TR030002-000439-ES Section 4 Approach to EIA.pdf:13: dredging activities produced by the Environment Agency (2012) in order to undertake WFD compliance

TR030002-000439-ES Section 4 Approach to EIA.pdf:13: assessments on projects requiring dredging and disposal. Where the assessment suggests that

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:2: dredging “windows” have not been considered. construction activity constraints. This would extend out the

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:2: and the additional volume of dredging.

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:2: All dredged material will be taken to offshore disposal sites. potential for reuse of dredged material within the site is not

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:3:3.1 Dredging

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:3:Capital dredging of the berth pocket and a section of the approach channel will be required in order to

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:3:dredging will be undertaken in two phases, linked to the phased development of the quay.

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:3:proposed that dredging to -16mCD would be undertaken to create the berth pocket.

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:3:proposed that dredging to -14.1mCD would be undertaken along the full length of the new quay frontage.

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:3:The ground to be dredged typically comprises sedimentary silts overlying geological deposits of sands,

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:3:A summary of the anticipated capital dredged material quantities and types is provided in the table

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:3: Capital Dredge Volume (m3)

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:3:The anticipated programme for the dredging works is as follows:

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:3:For both Phases 1 and 2 it is proposed that dredging of the silts would be undertaken using an enclosed

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:3:Capital dredging of the sands, gravels and clays is likely to be undertaken by Trailing Suction Hopper

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:3:Dredger (TSHD). The dredged material would be disposed of to offshore disposal sites by the dredger.

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:3:Capital dredging of the mercia mudstone is likely to be undertaken by a Backhoe Dredger. The dredge

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:4:Enclosed Grab Dredger

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:4:Trailing Suction Hopper Dredger

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:4:Backhoe Dredger

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:10: Enclosed (clamshell) dredger Berth Area

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:10: Dredging Trailing suction hopper dredger Berth Area

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:10: Backhoe Dredger Berth Area

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:11:  PB1586-SK3003 for details of Phase 1 Dredging Areas

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:11:  PB1586-SK3004 for details of Phase 2 Dredging Areas

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:12: Clamshell dredger 1 1 2

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:12: Mobilise dredgers TSH dredger 1 1 2

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:12: Backhoe dredger 1 1 2

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:12: Dredging Mobilise disposal barges Hopper barge 2 2 4

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:12: Dispose sands/gravels to offshore dumping site TSH dredger 155 155 310

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:13: Clamshell dredger 2 2

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:13: Mobilise dredgers

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:13: Backhoe dredger 1 1 2

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:13: Dredging

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:14: 6.2 Dredging Activities

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:14: The dredging activities comprise of creating the berth pocket (estimated 750,000m ) and deepening of

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:14: Dredging operations associated with the berth pocket and will be undertaken outside of the navigable

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:14: Dredging operations associated with deepening of the approach will be undertaken within the navigable

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:14: river channel and therefore have the potential to impact the existing river traffic movements. A dredger

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:14: operations would be planned to maintain at least a single channel width at all times and dredging

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:14: Vessel movements along the River associated with the dredging activities, resulting from material

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:14: It is noted that both capital and maintenance dredging activities have been undertaken on the river in the

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:16: Contractor to employ dredging plant / systems of work that provide adequate flexibility for moving

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:16:  The majority of the construction activities (berth construction and berth pocket dredging) are

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:16:  Dredging to deepen the navigable channel to be conducted in agreement with the Harbour

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:16: Master to minimise any disruption to existing river traffic. Capital and maintenance dredging

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:18: BARGE / DREDGER MOVEMENTS

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:21: ASSOCIATED WITH DREDGING IN PHASE 1

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:21: TRAILING SUCTION HOPPER DREDGER

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:21: BACKHOE DREDGER WITH BARGE

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:21: BACKHOE DREDGER CR

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:21: DREDGING PLANT PHASE 1

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:22: ASSOCIATED WITH DREDGING IN PHASE 2

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:22: TRAILING SUCTION HOPPER DREDGER

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:22: BACKHOE DREDGER WITH BARGE

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:22: BACKHOE DREDGER CR

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:22: DREDGING PLANT PHASE 2

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:24:  Risks due to dredging equipment working in the navigable channel can be managed with

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:24: minimal risk to existing river traffic and that both capital and maintenance dredging regimes have

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:25:including dredging. In order to assess the marine related construction working areas and vessel

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:28:The identification of hazards is done by analysing the construction activities, including dredging. In each

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:32:2. Barges used to transport dredging and construction material shall be self-propelled (as far as is

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:32: piling (and dredging). Fish and marine mammal movements (breeding season, etc.) may prevent

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:35: Concurrent operations - on site Concurrent operations due to Dredging, piling, deck construction, No impact on river traffic Project management

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:35: board the vessel, including dredgers.

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:35: others transporting materials up and manoeuvrable) dredging vessel without adverse impact. B 2

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:35: activities dredging vessel, etc.) as necessary – NWL possibly used as a layby berth

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:35: dredging equipment with least impact (backhoe fixed (spud), self

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:35: The dredger could be relocated for a given period around high tide

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:36: Survey and diving operations (water- Congestion due to ground survey Presence of survey/dredging vessel Collision ship with survey vessel Survey planning

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:37: Dredging Incident due to dredging of the navigable Barge movements to the disposal sites. Passing vessel running into dredger Capital dredging of the sands, gravels and clays is likely to be

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:37: Phase 1: dredging in berth area; river channel; See Vessels movements table: in month undertaken by Trailing Suction Hopper Dredger (TSHD). The dredged

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:37: approx. 100,000 m3 to dredge in the 4 peak of 165 calls per month (1+74+90), Impact on vessel movement along the material would be disposed of to offshore disposal sites by the

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:37: navigable river channel i.e. 330 additional moves per month river: dredger.

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:37: (appr. 12 moves/day) - Vessel movements associated with the Capital dredging of the mercia mudstone is likely to be undertaken by

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:37: berth construction a Backhoe Dredger. The dredge material would be loaded into hopper

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:37: Limited manoeuvrable dredging vessel - Vessel sizes are generally small (no barges by the backhoe and taken to offshore disposal sites.

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:37: Poor visibility Ship-dredging vessel collision Vessel movements accommodated into river movements planning

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:37: Dredging Incident due to dredging of the navigable Barge movements to the disposal sites Impact on vessel movement along the be implemented for vessels passing the construction site

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:37: mudstone (rock) 180 moves/month; 6 moves/day) berth construction are relatively low dredging equipment with least impact (backhoe fixed (spud), self

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:37: Limited manoeuvrable dredging vessel tidal restrictions) The dredger could be relocated for a given period around high tide

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:37: Excessive wind/current Ship-dredging vessel collision away from the main channel, thereby freeing up access to the larger

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:37: of dredging place outside of the navigational channel.

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:38: Waste disposal No possibility for disposal of dredged No disposal options Disposal of dredged material to offshore Disposal of dredged materials with barges. For both Phases 1 and 2 it

TR030002-000748-Document 8.3 Appendix 5 - Shipping Notes Part 2.pdf:38: materials disposal sites. is proposed that dredging of the silts would be undertaken using

TR030002-000740-Huntsman response to first written questions.pdf:2: 3.2.3 The potential effect of dredging and the building of the quay on the integrity of the

TR030002-000018-Examination Library (4).pdf:15:APP-258 Section 22: Offshore Disposal of Dredged Material

TR030002-000018-Examination Library (4).pdf:23:REP3-008 York Potash Ltd - Dredging Note. Appendix 3 of Submissions from

TR030002-000759-Document 8.3 Applicants Response to Written Representations.pdf:4:Unweighted peak-to-peak levels have been presented for both impact piling and dredging scenarios. From these, estimates can be made

TR030002-000759-Document 8.3 Applicants Response to Written Representations.pdf:4:The noise levels at 1m from the backhoe dredger and suction dredger are below the levels indicated in the injury criteria presented. It is

TR030002-000759-Document 8.3 Applicants Response to Written Representations.pdf:4:considered unlikely that physical injury as a result of noise from dredging activity will occur at any range for any of the species considered.

TR030002-000759-Document 8.3 Applicants Response to Written Representations.pdf:4:Subacoustech during busy periods on the River Tees and the modelling indicates that the noise levels from backhoe dredging falls below

TR030002-000759-Document 8.3 Applicants Response to Written Representations.pdf:4:140 dB within 30m and from suction dredging within 475m.

TR030002-000759-Document 8.3 Applicants Response to Written Representations.pdf:7:upon) included a larger dredged area which extended over the No. 2 Tunnel. As a result of concerns expressed during consultation, and

TR030002-000759-Document 8.3 Applicants Response to Written Representations.pdf:7:a re-evaluation of the need for such extensive dredging, the area to be dredged was reduced and in the submitted application does not

TR030002-000759-Document 8.3 Applicants Response to Written Representations.pdf:7:The Applicant does not believe that there is any unacceptable risk and notes that there is already a permission in existence to dredge

TR030002-000659-Doc 3.9A - Indicative Layout - Open Quay Northern Route.pdf:1: TING DREDGED AREA

TR030002-000659-Doc 3.9A - Indicative Layout - Open Quay Northern Route.pdf:1: EXIS DREDGED SIDE SLOPES

TR030002-000460-Section 3 App 3.1 Waste management.pdf:5: 5.1 Dredgings - Contaminated silt ……………………………………………………………………………………… 18

TR030002-000460-Section 3 App 3.1 Waste management.pdf:5: 5.2 Dredgings – uncontaminated material ………………………………………………………………………….. 26

TR030002-000460-Section 3 App 3.1 Waste management.pdf:13: Hall Construction Teesport 0.6 Km Dredging site – facility permitted to

TR030002-000460-Section 3 App 3.1 Waste management.pdf:13: Hall Construction Landfill, Off Teesport Road, accept site won dredgings

TR030002-000460-Section 3 App 3.1 Waste management.pdf:21: • A port terminal on the southern bank of the Tees estuary (with capital dredging of an associated

TR030002-000460-Section 3 App 3.1 Waste management.pdf:22:4.1.5 The channel would be deepened within the area that would require dredging in the current approach

TR030002-000460-Section 3 App 3.1 Waste management.pdf:22: dredging required would be the same for both the open quay structure and solid quay structure. It is

TR030002-000460-Section 3 App 3.1 Waste management.pdf:22: proposed that dredging to 16m bCD would be undertaken to create the berth pocket.

TR030002-000460-Section 3 App 3.1 Waste management.pdf:22: Dredging of the approach channel and berth pocket

TR030002-000460-Section 3 App 3.1 Waste management.pdf:22:4.1.7 Capital dredging of the berth pocket (and approaches to the pocket) would be required in order to allow

TR030002-000460-Section 3 App 3.1 Waste management.pdf:22: the maximum design vessels proposed access to the port terminal. Dredging would be undertaken in

TR030002-000460-Section 3 App 3.1 Waste management.pdf:22: two phases and is linked to the phased construction of the quay. Dredging would also be required to

TR030002-000460-Section 3 App 3.1 Waste management.pdf:22:4.1.8 Table 4-1 summarises the proposed capital dredging material quantities, split by material type, for

TR030002-000460-Section 3 App 3.1 Waste management.pdf:22: material to be dredged would be approximately 1,122,000m3. The construction of the closed

TR030002-000460-Section 3 App 3.1 Waste management.pdf:22: (reclamation) option would involve capital dredging of approximately 814,000m3 because less material

TR030002-000460-Section 3 App 3.1 Waste management.pdf:22: would require dredging from within the footprint of the quay structure compared with the open quay

TR030002-000460-Section 3 App 3.1 Waste management.pdf:22:4.1.9 Table 4-2 provides a summary comparison of dredged material volumes for the open and closed

TR030002-000460-Section 3 App 3.1 Waste management.pdf:22: (reclamation) quay options. The capital dredge volumes quoted are based on available geotechnical

TR030002-000460-Section 3 App 3.1 Waste management.pdf:23: Table 4-1 Summary of capital dredged material quantities and material types for Phases 1 and 2 (open

TR030002-000460-Section 3 App 3.1 Waste management.pdf:23: Capital dredge volume (m ) Total

TR030002-000460-Section 3 App 3.1 Waste management.pdf:23: Table 4-2 Summary of dredged material volumes for the open quay and closed (reclamation) quay

TR030002-000460-Section 3 App 3.1 Waste management.pdf:23:4.1.10 For Phases 1 and 2, it is proposed that dredging of the silts would be undertaken using enclosed grabs,

TR030002-000460-Section 3 App 3.1 Waste management.pdf:23: 4-1 shows that 181,000m3 of silts would require dredging by this method.

TR030002-000460-Section 3 App 3.1 Waste management.pdf:23: that further ground investigation is proposed), the EIA assumes dredging 181,000m3 + the top 15% of

TR030002-000460-Section 3 App 3.1 Waste management.pdf:24:4.1.12 The proposed capital dredging would generate silts, sands, gravels, clay and rock, and the potential to

TR030002-000460-Section 3 App 3.1 Waste management.pdf:24:5.1 Dredgings - Contaminated silt

TR030002-000460-Section 3 App 3.1 Waste management.pdf:24:5.1.3 A sediment quality survey of the proposed dredging (and quay construction) areas has been

TR030002-000460-Section 3 App 3.1 Waste management.pdf:26:5.1.10 Exceedances were observed at all depths of the silt layer within the proposed dredge area, with the

TR030002-000460-Section 3 App 3.1 Waste management.pdf:26:5.1.11 All of the sampling points from the dredged area provided one or more samples that exceeded the

TR030002-000460-Section 3 App 3.1 Waste management.pdf:27:5.1.14 The dredged contaminated silt cannot be prevented, because dredging would occur due of the works

TR030002-000460-Section 3 App 3.1 Waste management.pdf:27:5.1.20 The contaminated silt would be too wet to be directly used or disposed following dredging and would

TR030002-000460-Section 3 App 3.1 Waste management.pdf:28: watercourse (including the one from which the contaminated silt was dredged) unless the discharge

TR030002-000460-Section 3 App 3.1 Waste management.pdf:28:5.1.25 Prior to the commencement of dredging, the site would be registered as a hazardous waste producer in

TR030002-000460-Section 3 App 3.1 Waste management.pdf:28:5.1.26 Hazardous Waste Consignment notes would be prepared by (or on behalf of) the dredging contractor

TR030002-000460-Section 3 App 3.1 Waste management.pdf:28: before the contaminated silt is removed from the dredging area for each movement of the material to an

TR030002-000460-Section 3 App 3.1 Waste management.pdf:28:5.1.27 The removal of the contaminated silt from the dredged area would be by a person or company

TR030002-000460-Section 3 App 3.1 Waste management.pdf:28: uncontaminated dredged material would be used as infill. Contaminated silt would not be used.

TR030002-000460-Section 3 App 3.1 Waste management.pdf:29:5.1.36 A bespoke environmental permit would be required to use the dredged contaminated silt after treatment

TR030002-000460-Section 3 App 3.1 Waste management.pdf:30: status by setting a risk-based approach to re-use. The use of contaminated material, including dredged

TR030002-000460-Section 3 App 3.1 Waste management.pdf:30: certainty, not a probability. The use of the dredged sediment must form part of the detailed design,

TR030002-000460-Section 3 App 3.1 Waste management.pdf:30: be used. The movement of the dredged sediment from the dewatering process to final use must be

TR030002-000460-Section 3 App 3.1 Waste management.pdf:31:5.1.41 The contaminated silt would not be suitable for use immediately after being dredged because it is wet.

TR030002-000460-Section 3 App 3.1 Waste management.pdf:32: from the dredge area to off-site treatment, recovery or disposal facilities, the mode of transport would

TR030002-000460-Section 3 App 3.1 Waste management.pdf:32:5.2 Dredgings – uncontaminated material

TR030002-000460-Section 3 App 3.1 Waste management.pdf:32:5.2.1 It is proposed that some of the sand and gravel from capital dredging during Phase 1 would be used

TR030002-000460-Section 3 App 3.1 Waste management.pdf:33:5.2.2 The habitat enhancement proposals would comprise the placement of dredged material within the

TR030002-000460-Section 3 App 3.1 Waste management.pdf:33: therefore, provide a feeding habitat for waterbirds. A layer of finer maintenance dredged material

TR030002-000460-Section 3 App 3.1 Waste management.pdf:33: area for feeding waterbirds. A bund of dredged clay or mudstone would be put in place. Sand, gravel

TR030002-000460-Section 3 App 3.1 Waste management.pdf:33: and maintenance dredged material would be placed behind the bund to prevent migration of the placed

TR030002-000460-Section 3 App 3.1 Waste management.pdf:33: dredged material from the deposition area across Bran Sands lagoon.

TR030002-000460-Section 3 App 3.1 Waste management.pdf:33:5.2.5 A proportion of the capital dredged clay and mudstone would be used to create a series of islands in

TR030002-000460-Section 3 App 3.1 Waste management.pdf:33:5.2.7 The uncontaminated dredged sands & gravels and mudstone would not be hazardous waste. There is

TR030002-000460-Section 3 App 3.1 Waste management.pdf:35: uncontaminated dredged material would be used as infill if it could be demonstrated that it would be

TR030002-000460-Section 3 App 3.1 Waste management.pdf:35: accordance with the CL:AIRE CoP. It is anticipated that the dredged material would be pumped directly

TR030002-000460-Section 3 App 3.1 Waste management.pdf:41:6.1.3 Maintenance dredging would also be required to ensure the berth pocket and navigation channel are

TR030002-000460-Section 3 App 3.1 Waste management.pdf:45: Dredged sediment

TR030002-000460-Section 3 App 3.1 Waste management.pdf:57: 1.1.9 All of the sampling points from the dredged area provided one or more sample that exceeded

TR030002-000460-Section 3 App 3.1 Waste management.pdf:70: when is dredged, this would be considered as a separate article on its own merits, rather than

TR030002-000713-Redcar and Cleveland Borough Council (Response to the Examining Authority's First Written Questions).pdf:8:Disposal of contaminated sediments from capital dredging

TR030002-000713-Redcar and Cleveland Borough Council (Response to the Examining Authority's First Written Questions).pdf:8:Paragraph 3.1.42 of the ES (Doc 6.4) confirms that some of the capital dredged

TR030002-000713-Redcar and Cleveland Borough Council (Response to the Examining Authority's First Written Questions).pdf:8:(Doc 6.5). The management of dredged material and contaminated excavated

TR030002-000713-Redcar and Cleveland Borough Council (Response to the Examining Authority's First Written Questions).pdf:9:More generally, how would the alternative dredging mechanisms be secured in the

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:3:project design, notably a reduction in the footprint of the proposed capital dredging. The

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:3:require capital dredging of a section of the approach channel adjacent to the marine terminal and

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:3:to create the berthing area. For the suspended deck option, some dredging would also be

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:3:physical and chemical analysis of the proposed dredged material together with benthic sampling

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:4:will enable investigation of alternative uses for the dredged material prior to proposing offshore

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:4:Capital dredging of the berth pocket and a section of the approach channel will be required to

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:4:allow vessels to gain access to the marine terminal. Dredging would also be required to create

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:4:The volume of material to be dredged is estimated at up to approximately 800,000 m3 to create

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:4:the reclamation option, there is no requirement to create the stable slope and the dredge volume

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:4:volumes quoted above, a further approximately 400,000m3 of material would be dredged from

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:4:(dredged to a depth of -16m Chart Datum (CD)), while the navigation channel is proposed to be

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:5:dredged over an area of approximately 360m long x 244m wide (dredged to a depth of -14.1m

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:5:The navigation channel at the location where dredging is proposed is currently at -10.4m CD so

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:5:The method of dredging will be confirmed once the site investigation phase is completed.

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:5:However, dredging is likely to be undertaken using either a backhoe, cutter suction or trailing

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:5:suction hopper dredger (or a combination of these dredgers). Alternative uses for the resulting

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:5:and chemical properties of the dredged material. If there are no practicable alternative uses, it is

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:5:proposed that the dredged material could potentially be transported to a licensed offshore

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:5:dredging within the berthing pocket and approaches. The volume of maintenance dredging

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:6:disposed of to sea. As a result, a licence was issued for disposal of dredged material at the

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:6:proposed to be dredged as part of the QEII jetty refurbishment project. In consultation with

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:6:dredge area. The vibrocores sampled down to 4m below Ordnance Datum or as deep as the

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:7:proposed dredge was licensed for offshore disposal; the overlying unconsolidated material was

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:7:The sample methodology follows the OSPAR Guidelines for the Management of Dredged

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:7:upon the quantity of sediment to be dredged. Given the amount of material to be dredged, this

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:7:The areas to be dredged are different in respect of their previous history. The channel area is

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:7:dredged for maintenance purposes on a regular basis whereas the berth pocket is in a previously

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:7:undredged area.

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:7:For the proposed berth pocket area and area that may be dredged beneath the proposed quay

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:7:to maximum proposed dredged depth (or until bedrock is reached).

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:8:  Cefas Guideline Action Levels for the disposal of dredged material (Cefas, undated);

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:8:subject to regular dredging and sediment removal. Analysis of macrobenthic data from the Tees

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:9:maintenance dredging.

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:9:the marine works (piling, dredging and the quay construction) and the adjacent areas most likely

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:10: capital dredging

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:11:terminal, the berthing pocket and area that is proposed to be dredged within the approach

TR030002-000471-Section 7 App 7.1 Benthic and sediment sampling strategy.pdf:13:Halcrow, (1991) Tees Estuary Dredging Review. Report for Tees and Hartlepool Port

TR030002-000479-Section 10 App 10.2 Terrestrial ecology survey reports.pdf:52:West of the lorry park is an area of rank grassland which had dredgings spread over it

TR030002-000479-Section 10 App 10.2 Terrestrial ecology survey reports.pdf:55:dredging some time ago and is in an advanced stage of succession. The area is

TR030002-000479-Section 10 App 10.2 Terrestrial ecology survey reports.pdf:55:angustifolium but the underlying substrate, being river dredging, means that there is a

TR030002-000479-Section 10 App 10.2 Terrestrial ecology survey reports.pdf:60:West of the road is a large area where dredgings were spread eight years ago. When

TR030002-000423-Doc 5.2 Funding Statement.pdf:6: 2.2.2 Dredging of the approach channel and berth area;

TR030002-000801-Document 6.8B - Governance Tracker.pdf:8:14 The main mitigation measure to limit sediment plume is selection of the dredge method. Contaminated Deemed Marine Licence (Schedule 5)

TR030002-000801-Document 6.8B - Governance Tracker.pdf:8: sediments are to be dredged using an enclosed grab. Dredging of geological deposits may be

TR030002-000801-Document 6.8B - Governance Tracker.pdf:8: undertaken by Trailing Suction Hopper Dredging (TSHD), Cutter Suction Dredger (CSD) or backhoe, or

TR030002-000801-Document 6.8B - Governance Tracker.pdf:8: a combination of these. It is important to retain flexibility in the choice of dredging plant.

TR030002-000801-Document 6.8B - Governance Tracker.pdf:8: During backhoe dredging, an experienced operator would be used to minimise losses of sediment into

TR030002-000801-Document 6.8B - Governance Tracker.pdf:9: would be installed across the full width of the lagoon (around the location of placement of dredged

TR030002-000801-Document 6.8B - Governance Tracker.pdf:9: box would prevent significant release of suspended sediments during dewatering of placed dredged

TR030002-000801-Document 6.8B - Governance Tracker.pdf:10:29 Measures to mitigate the direct loss of intertidal and subtidal habitat during dredging, piling and Deemed Marine Licence (Schedule 5)

TR030002-000801-Document 6.8B - Governance Tracker.pdf:21: of Investigation (WSI) for dredging and other marine related construction activity.

TR030002-000801-Document 6.8B - Governance Tracker.pdf:21:64 PD Teesport will manage any potential conflicts in the same way as routine dredging and other N/A

TR030002-000801-Document 6.8B - Governance Tracker.pdf:22: Breagh Onshore Gas Pipeline could be implemented prior to dredging works being undertaken. One (Requirement 6) and Draft Order – Protective

TR030002-000801-Document 6.8B - Governance Tracker.pdf:24:Section 22 – Offshore disposal of dredged material

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:6: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:6: “dredging” means using any device to move material (whether or not suspended in water) from

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:7: “gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:8: © dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:8: (b) dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:8: “sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:8: “silt” means dredged materials with a diameter of at least 31.25 and less than 62.5 micrometres;

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:29: (1)(3) dredging of approach channel and berth pocket; and

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:35:demolisheddemolition, and monitoring of dredging works in the harbour area in the vicinity of

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:36: 1 1, 2, 4 and 9 (i) dredging;

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:36: 2, 3 1 and 9 (i) dredging; and

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:36: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:36: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:37: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:38: 12 and 13 1, 4, 5, 9 and 10 (i) dredging;

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:42: 1 1, 2, 4 and 9 (i) dredging;

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:42: 2, 3 1 and 9 (i) dredging; and

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:42: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:42: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:44: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:45: 12 and 13 1, 4, 5 and 9 (i) dredging;

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:52: Capital dredging and disposal

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:52: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:52: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:52:Dredged material type Open quay (m3) Solid quay (m3)

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:52: (3) For phases 1 and 2, the dredging of the contaminated silts will be undertaken using enclosed

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:53: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing Suction

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:53:Hopper Dredger (TSHD).

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:53: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) willmust be

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:53:undertaken using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2,

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:53:dredging of sands and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:53: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C (TY

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:53:150)offshore dredged material disposal sites—

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:54:scheme (i.e. with the use of the chosen alternative use of dredged material proposal(s)) has been

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:56: Capital dredging and, disposal conditions and debris

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:56: 35.34.—(1) The undertaker must agree a capital dredge and disposal strategy with the MMO at

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:56: (2) If any disposal or dredging activities are to take place after 1st October 2017 then—

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:56: months prior to that dredging or disposal activity being carried out;

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:56: validated by the MMO at least six weeks prior to the dredging or disposal activity being

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:56: © the dredging and disposal activity must not be carried out without the consent of the MMO.

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:56: 36.35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:56: 37.36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:56:dredged material and disposed of to landat a registered onshore disposal site.

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:56:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:80: (g) details of the method location and extent of any dredging, a technical assessment of the

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:80: likely effect of the dredging on the protected crossings and any mitigation measures which

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:83: 15.—(1) (1) Where excavation of trenches (including excavation by dredging) adjacent to the

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:97: (b) agreeing a dredge and disposal strategy with the MMO under paragraph 35 of Schedule 5

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:98: (e) commencing any dredging operation,

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:98:to the construction or maintenance of the tidal work or dredging operation or altered drawings.

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:98: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:98:paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:99:Capital dredge and disposal Schedule 5, paragraph 34 The whole strategy

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:101: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:105: may reasonably be put in dredging the river to remove the sedimentation or in making good

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:105: (b) carry out the necessary dredging at its own expense and subject to the prior approval of the

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:106:under any duty to dredge the accessapproaches from the river channel to the quay, or the berthing

TR030002-000895-160113_TR03002_Draft DCO (Comparite with First Draft DCO (Document 4.1)).pdf:106: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the 1966

TR030002-000813-Document 6.11A - Outline Ecological Management Plan.pdf:6: Use of an enclosed grab to dredge the contaminated sediment (thereby minimising resuspension of

TR030002-000813-Document 6.11A - Outline Ecological Management Plan.pdf:6: Trailing Suction Hopper Dredger (TSHD)) are optimised with respect to each other.

TR030002-000813-Document 6.11A - Outline Ecological Management Plan.pdf:6: Use of an experienced operator when dredging.

TR030002-000813-Document 6.11A - Outline Ecological Management Plan.pdf:6: Limiting the swing of the backhoe over the water during backhoe dredging.

TR030002-000813-Document 6.11A - Outline Ecological Management Plan.pdf:6: head and optimising the design of the cutter head when using a Cutter Suction Dredger (CSD).

TR030002-000813-Document 6.11A - Outline Ecological Management Plan.pdf:7: Placement of (clean) material derived from the dredging which forms part of the proposed scheme, as

TR030002-000813-Document 6.11A - Outline Ecological Management Plan.pdf:7: well as maintenance dredging, within Bran Sands lagoon. These measures would include the creation

TR030002-000800-Document 4.2B - Explanatory Memorandum (Clean).pdf:6: ii. dredging of the approach channel and berth pocket;

TR030002-000800-Document 4.2B - Explanatory Memorandum (Clean).pdf:18: This is the dredging of the approach channel and berth pocket and the demolition

TR030002-000800-Document 4.2B - Explanatory Memorandum (Clean).pdf:19:involve the placing of dredged materials into the lagoon to create shallow water

TR030002-000800-Document 4.2B - Explanatory Memorandum (Clean).pdf:21:  Dredging of material from the approach channel and berth pocket;

TR030002-000800-Document 4.2B - Explanatory Memorandum (Clean).pdf:21:  Placement of dredge material within Bran Sands Lagoon (habitat

TR030002-000800-Document 4.2B - Explanatory Memorandum (Clean).pdf:21:  Dredging of material from the approach channel and berth pocket;

TR030002-000800-Document 4.2B - Explanatory Memorandum (Clean).pdf:23: sampling plan in the event of any dredging or disposal taking place post

TR030002-000470-Section 6 App 6.4 CEMP.pdf:6:  capital dredging (i.e. deepening beyond the current maintained depth) of a section of the

TR030002-000470-Section 6 App 6.4 CEMP.pdf:19:12 The main mitigation measure to limit sediment plume is selection of the dredge method. Contaminated sediments are to be dredged using an

TR030002-000470-Section 6 App 6.4 CEMP.pdf:19: enclosed grab. Dredging of geological deposits may be undertaken by Trailing Suction Hopper Dredging (TSHD), Cutter Suction Dredger (CSD)

TR030002-000470-Section 6 App 6.4 CEMP.pdf:19: During backhoe dredging, an experienced operator would be used to minimise losses of sediment into the water column. Other measures to limit

TR030002-000470-Section 6 App 6.4 CEMP.pdf:19: placement of dredged material) prior to placement of material and would be maintained in position during the activity. A silt box would prevent

TR030002-000470-Section 6 App 6.4 CEMP.pdf:19: significant release of suspended sediments during dewatering of placed dredged material.

TR030002-000470-Section 6 App 6.4 CEMP.pdf:20:26 Measures to mitigate the direct loss of intertidal and subtidal habitat during dredging, piling and reclamation are limited as this would be an

TR030002-000470-Section 6 App 6.4 CEMP.pdf:29:57 Production and implementation of an archaeological finds reporting protocol within a Written Scheme of Investigation (WSI) for dredging and

TR030002-000470-Section 6 App 6.4 CEMP.pdf:29:59 PD Teesport will manage any potential conflicts in the same way as routine dredging and other construction activities, through co-ordination via

TR030002-000470-Section 6 App 6.4 CEMP.pdf:30: implemented prior to dredging works being undertaken. One method which could be adopted to stiffen the material above the pipeline is jet

TR030002-000470-Section 6 App 6.4 CEMP.pdf:32: Section 22 – Offshore disposal of dredged material

TR030002-000053-141105_TR030002_Comments_s51_Advice.pdf:29:• Paragraphs 2.6.1 and 2.6.10 of the draft HRA Report confirms that capital dredging

TR030002-000053-141105_TR030002_Comments_s51_Advice.pdf:29: the draft HRA Report which states that no dredging in the approach channel is

TR030002-000053-141105_TR030002_Comments_s51_Advice.pdf:29: does not extend into the approach channel. The extent of the dredging works

TR030002-001866-The York Potash Harbour Facilities Order Amendment Application Statement.pdf:19: © dredging of up to 750,000 cubic metres of material from the approach channel and berth

TR030002-001866-The York Potash Harbour Facilities Order Amendment Application Statement.pdf:19: © dredging of up to 750,000 cubic metres of material from the approach channel and berth

TR030002-001866-The York Potash Harbour Facilities Order Amendment Application Statement.pdf:41: land concerned is only part of the dredging pocket within the Tees Estuary which is

TR030002-000734-York Potash Limited (SoCG & Appendices 1-8).pdf:56: d) identifying those wharves which can be used for the landing of marine-dredged

TR030002-000734-York Potash Limited (SoCG & Appendices 1-8).pdf:58: sand and gravel is dredged from the sea bed and is controlled by Government

TR030002-000734-York Potash Limited (SoCG & Appendices 1-8).pdf:58: that additional marine-dredged material is landed at Graythorp Yard (TERRC)

TR030002-000377-160106 TR030002 _Rule 17 PR.pdf:2:England, particularly as it relates to schemes for the monitoring of dredging works

TR030002-000696-PD Teesport Limited 1.pdf:6: (e) commencing any dredging operation,

TR030002-000696-PD Teesport Limited 1.pdf:6: and method statements relating to the construction or maintenance of the tidal work or dredging operation

TR030002-000696-PD Teesport Limited 1.pdf:6: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-paragraph (1)

TR030002-000696-PD Teesport Limited 1.pdf:6:the dredging operation that operation is being carried out by the Tees Port Authority.

TR030002-000696-PD Teesport Limited 1.pdf:6: Capital dredge and disposal Schedule 5, paragraph 35 The whole strategy

TR030002-000696-PD Teesport Limited 1.pdf:9: buoys, or carrying out dredging operations for any such purpose, not being costs which it would

TR030002-000696-PD Teesport Limited 1.pdf:11: reasonably be put in dredging the river to remove the sedimentation or in making good the

TR030002-000696-PD Teesport Limited 1.pdf:11: (b) carry out the necessary dredging at its own expense and subject to the prior approval of the Tees

TR030002-000696-PD Teesport Limited 1.pdf:13:duty to dredge the approaches from the river channel to the quay, or the berthing pocket at the quay, to a

TR030002-000696-PD Teesport Limited 1.pdf:13: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the Tees and

TR030002-000496-Section 15 App 15.3 Stage 1 geoarchaeological assessment.pdf:10: the channel was dredged; widening and straightening the channel and building up

TR030002-000496-Section 15 App 15.3 Stage 1 geoarchaeological assessment.pdf:15: was dredged, and the deposits were used to build up the river bank. The estuarine

TR030002-000496-Section 15 App 15.3 Stage 1 geoarchaeological assessment.pdf:15: deposits were removed/ disturbed when the river was dredged during reclamation of

TR030002-000459-ES Section 24 References.pdf:1: BMAPA, English Heritage and Wessex Archaeology (2003). Marine Aggregate Dredging and the

TR030002-000459-ES Section 24 References.pdf:2:Cefas (2000). Use of Action Levels in Dredged Material Assessments.

TR030002-000459-ES Section 24 References.pdf:2:Cefas (2011). Guidelines for the conduct of benthic studies at aggregate dredging sites.

TR030002-000459-ES Section 24 References.pdf:2:CIRIA (2000). Scoping the assessment of sediment plumes from dredging.

TR030002-000459-ES Section 24 References.pdf:3:Halcrow, (1991). Tees estuary Dredging Review. Report for Tees and Hartlepool Port Authority.

TR030002-000459-ES Section 24 References.pdf:4:HR Wallingford (1992). Tees and Hartlepool Port Authority. Review of Dredging.

TR030002-000459-ES Section 24 References.pdf:5:Land J and Bray R N, 1998, Acoustic measurement of suspended solids for monitoring of dredging and

TR030002-000459-ES Section 24 References.pdf:5:dredged material disposal, Proceedings of the 15th World Dredging Congress (WODCON XV), June 28

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:12: • a marine terminal at Bran Sands, including dredging works

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:13: • a marine terminal at Bran Sands, including dredging works

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:13: • a marine terminal at Bran Sands, including dredging works

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:17:2.38 Dredging of an approach channel to the marine terminal and a

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:17: Scoping Report describes the anticipated dredging process. The

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:18: total volume of material estimated to be dredged in 1.05million m³

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:18: of material. The berth pocket channel requiring dredging measures

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:18: by 150m (w), dredged to a depth of 15.1 below Chart Datum

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:19:2.53 The dredging method has yet to be determined and three options

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:19: • Backhoe/grab dredger

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:19: • Cutter section dredger; and

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:19: • Trailing suction hopper dredger.

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:19: of the dredged material. This includes the use of the material to

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:20: dredging would be required during the operation of the

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:20: the frequency of the dredging is not provided within the Scoping

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:24:2.87 The SoS notes that maintenance dredging will be required during

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:30: associated with dredging, the ES should also provide information

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:31:3.29 In addition to the dredging works required to construct the port

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:31: maintenance dredging works that are intended to be carried out

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:31: spoil dredged as part of these maintenance works.

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:33:3.42 The Scoping Report states that maintenance dredging is likely to

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:33: form part of PD Ports’ wider maintenance dredge campaigns, as

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:33: The cumulative impact of both the dredging associated with the

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:33: proposed port facility and the wider dredging works undertaken by

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:33: dredging, and lighting.

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:33: information in the ES regarding the dredging and piling works in

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:34: traffic and dredging works during construction and operation.

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:37: and vibration impacts associated with the piling and dredging

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:37:3.81 The Scoping Report acknowledges that the berth pocket dredging

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:37: dredging and therefore there is the potential for unknown

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:37: arising from the dredging activity (see Appendix 2 of this Opinion).

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:65:ii) that ‘Royal Haskoning DHV are unaware of the dredge footprint (berth pocket and dredge

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:66:In addition, the three proposed options will all require capital dredging of an approach

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:66:be put in place to cover the potential archaeological impacts of the dredging activities. The

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:66:for the recording of any historic assets dredged up during any type of marine-based work.

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:70:proximity of the dredge.

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:70:Dredging

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:70:Dredging method to be discussed and agreed with Environment Agency in advance of works to

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:70:1st December to 31st March preferred dredge window as main salmonid migration is mid‐April

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:70:to end of November and the dredge may cause increase in turbidity and drop in dissolved

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:71:The results should be provided of sediment quality testing from the berth pocket and dredge

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:71:waste material and not just the dredged material. This should detail:‐

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:82:5. The proposed method of dredging is yet to be decided. For the EIA, if a method is still

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:82:6. It is not clear whether consent for the periodic maintenance dredging within the

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:82: sample analysis for maintenance dredging may be required depending on the results

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:82: Disposal of dredged material

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:82: maintained by dredging operations. If it is, the ES must contain details of the

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:82: maintenance dredging operations. The developer should also consult stakeholders

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:82: who may be affected by dredging operations.

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:82: dredged material: Tees Bay A (TY160) and Tees Bay C (TY150). TY160 has

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:82:12. The MMO welcomes the commitment to seek alternative uses of the dredged

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:83:17. The Scoping Report states that maintenance dredging may be required and that this

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:83: sediment regime and cause additional sedimentation which could increase dredging

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:84: should include the dredging operations.

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:84: effects of dredging and piling concurrently on marine receptors.

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:93:  An appraisal of dredging techniques and their associated impacts on the marine

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:93: should be presented. This should cover disposal options for the dredged material,

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:93: contamination investigations, maintenance dredging for the lifetime of the project and

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:93: dredging period (proposed at 24 hours/day). We would welcome consideration of alternative

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:93: uses for dredged material to protect or increase estuary habitats, avoiding loss of SPA

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:93: investigation into the use of dredged material to create sand banks in the area (Biodiversity

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:93:  The report does not mention the impact on tidal prism that could result from capital dredging

TR030002-000463-Section 4 App 4.2 Scoping Opinion.pdf:105:update in dredged quantities.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:3:  release of sediments during piling and capital dredging; and,

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:3: dredging.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:4: capital dredging is limited to the deepening of a short section of the existing dredged approach channel.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:4: Importantly, no capital dredging seaward of the location of the proposed port terminal towards the

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:4:10.3.8 Given that the only proposed capital dredging of the approach channel is located immediately adjacent

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:4: to the port terminal, with no dredging proposed seaward of this point towards the mouth of the Tees,

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:5: and Appendix 5.1. The capital dredging of the section of approach channel adjacent to the proposed

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:5: predicted on the shoreline adjacent to the works, suggesting that the dredging is predicted to draw

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:5: new dredged approaches and extended area of channel at -14.1m CD.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:5:10.3.14 In terms of the maintenance dredging requirement of the proposed berth pocket and deepened

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:5: methodology used for, maintenance dredging and no effect on sediment supply to intertidal areas

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:7: location of the port terminal). The use of maintenance dredged material to create the surface layer of

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:11: scheme (and inform the design of the level of the placement of dredged material).

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:12: scheme on the suspended sediment concentration in the water column during capital dredging,

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:12: Suspended sediment concentration in the water column during capital dredging

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:12:10.3.36 Modelling of the dispersion of sediment during capital dredging has been undertaken for a range of

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:12: and neap tides). The modelling simulated dredging using three types of dredging plant to capture the

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:12: most likely dredge method based on the bed material to be dredged throughout the proposed dredging.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:12: The dredgers that were simulated in the modelling are:

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:12:  backhoe dredger (BHD) in the river channel;

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:12:  trailing suction hopper dredger (TSHD) at the berth and quay construction area; and,

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:12:  cutter suction dredging (CSD) (with pumping into a barge) at the berth and quay construction

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:12: concentrations in the vicinity of the dredger is highest for a CSD (greater than 500mg/l) and TSHD

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:12: (greater than 200mg/l) compared with a backhoe dredger. The TSHD results in the largest spatial

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:12: proposed dredge footprint are only a few tens of mg/l at most, on average. The simulations show that

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:12: background may be anticipated in the channel, 1.5km either side of the dredging works.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:12: approach channel that would be dredged and this has shown that the silts overlying geological material

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:13: dredged using an enclosed grab (and removed to a barge) in order to ensure that there is no significant

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:13: release of contaminated material during the capital dredging. Hence the results of the sediment plume

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:13: during dredging of non-contaminated sediments.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:13:10.3.40 During the operational phase, maintenance dredging would be required to maintain the dredged depth

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:13: maintenance dredging.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:13: side of the proposed dredge footprint was predicted, with greater deposition in the immediate vicinity of

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:13: dredging activity. The plume dispersion modelling predicted no average increase in suspended

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:14:10.3.47 The habitat enhancement proposals involve placing a relatively thin layer of dredged material over a

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:14: The proposed placement of dredged material in lagoon would not reduce the flow of deeper

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:18:10.3.69 With regard to underwater noise from capital dredging, the modelling results show that underwater

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:18: area that is highly localised to the dredger, and any avoidance reactions would be temporary for the

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:18: duration of dredging.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:20: terminal. During the operational phase, there would be no change to the maintenance dredging

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:20: with maintenance dredging for the proposed berth pocket.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:22:10.4.3 The predicted effects of the proposed port terminal and capital dredging on the hydrodynamic and

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:23:10.4.9 The suspension and dispersion of sediment during capital dredging would temporarily affect water

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:23: immediate dredge footprint. Given that the silts (but not the underlying geological material) to be

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:23: dredged are contaminated, this material would be dredged using an enclosed grab to avoid any

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:23: significant release of silts into the water column during dredging.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:25:  Maintenance dredging within the Tees estuary.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:25:  NGCT (terminal and capital dredging).

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:27: Maintenance dredging within the Tees estuary

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:27:11.2.9 PD Teesport carries out maintenance dredging in the reaches of the river shown in Figure 11.1

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:27: (below). Most dredging occurs in the approach channel and low-middle estuary in order to maintain

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:27: dredging, supported by grab dredging and ploughing where required (Royal HaskoningDHV, 2014b).

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:27:11.2.10 In 2013, the total volume of maintenance dredging was approximately 1.22 million m3; this figure is very

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:27: jetty. The project will include capital dredging to deepen the existing QEII berth from 10.9m bCD to

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:27: a period of approximately 120 days (17 weeks). The total volume of capital dredging is expected to be

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:28: Figure 11.1 Reaches of the Tees where maintenance dredging is undertaken (Royal

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:28:11.2.14 Capital dredging is proposed within the existing dredged approach channel to deepen the channel by

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:28: quay face. The total volume of material that will arise from the capital dredging will be approximately

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:29:  effects on marine water quality during capital dredging; and,

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:30: maintenance dredging

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:30: dredging associated with various projects has been assessed in detail in Part 3 Section 25 of the CIA.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:30:11.3.10 It was concluded that there is only the potential for a cumulative effect to occur should the dredging

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:31:11.3.12 Should the capital dredging for the three projects included in the CIA coincide, there would be an effect

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:31: but the short term and localised nature of peaks in suspended sediment arising during dredging would

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:31: dredge is more extensive and extends into Seaton Channel and onto Seal Sands. It was concluded

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:31: sediment deposition was predicted during capital dredging for the Harbour facilities and, therefore,

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:31:11.3.15 Maintenance dredging is targeted towards areas that require dredging to maintain navigable depths

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:31: of sediment onto the seabed is predicted to occur as a result of maintenance dredging. No

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:31: maintenance dredging would take place at the location of the proposed Harbour facility when the

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:31: construction and capital dredging works are being undertaken and, therefore, should maintenance

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:31: dredging be undertaken elsewhere in the Tees estuary, there is a low potential for suspended sediment

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:31: arising from maintenance dredging to interact with a sediment plume from capital dredging. It should

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:31: be noted that it is highly unlikely that maintenance dredging would be scheduled when a significant

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:31: capital dredging project, with the associated release of fine sediment to the estuary, was being

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:31: dredging are proposed as part of the QEII Berth Development and the NGCT projects. For the former

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:31: project, mitigation comprises the use of specialist dredging equipment (i.e. an enclosed grab loading

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:31: into a sealed barge) for dredging of unconsolidated material to minimise resuspension in the water

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:32: dredged sediment, and this measure would limit sediment release into the water column as far as

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:32: practicable. This mitigation also applies to the dredging of the silts (overlying geological material) to be

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:32: dredged as part of the Harbour facilities. As a result, there would be a negligible release of

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:32: contaminated sediment during the capital dredging for these projects and, therefore, no potential for an

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:32: in combination effect occur during the dredging of contaminated sediments.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:32: (anyway) and been subject to maintenance dredging and offshore disposal as part of

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:32: requires maintenance dredging. The predictive modelling for the Harbour facilities concluded that the

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:33: dredging requirement of the same magnitude.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:33: for the scheme in isolation) in the maintenance dredge requirement in the Harbour facilities berthing

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:33:11.3.25 It is concluded that there would be no combined effect with respect to the maintenance dredging

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:35: Royal HaskoningDHV (2014b). Tees Maintenance Dredging Annual Review.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:58:The habitat enhancement proposals comprise the placement of capital and maintenance dredged arisings

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:59:placement of dredged material in Bran Sands lagoon would provide habitat enhancement. The proposals

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:61: enhancement proposals (placement of dredged evidence

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:64:dredging contractors, who confirmed that the approach illustrated is deliverable.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:64: dredging. The ground investigation may need to be extended to cover the lagoon.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:64:the sediment quality at the site of the proposed port terminal and within the footprint of the capital dredging is

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:65:and to contain the placement of dredged material in subsequent stages of the works. Marl would continue to

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:65:The surface of the islands would be dressed with material specially selected from the capital dredging or

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:65:maintenance material is to be placed (in Stage 8) as the dredged material dewaters to the Tees estuary (i.e.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:65:Uncontaminated and fine (i.e. silt) maintenance dredged material would be pumped into the placement area.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:65:When the desired level has reached, pumping of dredged material would cease and the silt box would be

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:68: PUMP IN MAINTENANCE DREDGING TRIM BUND AND LAY EXCESS MATERIAL

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:68: DREDGE MATERIALS

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:69:dredged material of 30cm. In addition, further survey of the bathymetry of the lagoon would be undertaken.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:70:The habitat enhancement works would be implemented in parallel with the capital dredging works. It is not

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:70:possible to implement the habitat enhancement measures in advance of the capital dredging because the

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:70:material required to form the bund to retain the maintenance dredged material and create the islands is to be

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:70:derived from the capital dredged arisings.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:70:the timing of availability of maintenance dredged material. However, maintenance dredged arisings are

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:70:It is proposed that the new shallows would be created using uncontaminated, silty material that is dredged

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:70:disposal of maintenance dredged material in the marine environment requires that the quality of the

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:70:Maintenance dredging is undertaken within 13 reaches throughout the Tees estuary and the nature of the

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:70:dredged material (in terms of particle size) varies according to location throughout the estuary. It would,

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:71:therefore, be possible to select silty material from maintenance dredging of an appropriate reach of the

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:71:Maintenance dredging and disposal is undertaken by PD Ports and the MMO has indicated that PD Ports’

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:71:marine licence (for disposal of dredged material) could be varied to include Bran Sands lagoon as a location

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:71:for the placement of maintenance dredged material. This would represent an alternative use of dredged

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:71:process for disposal of dredged material. Consultation with PD Ports will, therefore, be undertaken as part

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:71:was recharged with maintenance dredged silts.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:71:evolution of a site that had no invertebrate value and was recharged with maintenance dredging. Although

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:74:(maintenance dredgings) placed in an area of eroding saltmarsh adjacent to a marina in the Crouch estuary,

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:74:maintenance dredged material recharged onto an intertidal area, namely:

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:74: 1. Direct transfer within the dredged material.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:74:occur due to the smothering effect and depth of sediment associated with the placement of the dredged

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:75:likely means of colonisation of the maintenance dredged material. Planktonic recruitment is considered

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:75:dredged material, given that estuarine invertebrate reproduction is seasonal and restricted to late spring or

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:82:The elevation and profile of the placed dredged material would also be monitored (in part to establish item 1

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:83:with additional maintenance dredged material, and vegetation management (e.g. on the islands, should

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:86:Royal HaskoningDHV (2014b). Tees Maintenance Dredging Annual Review 2013. Prepared for PD Ports.

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:92:  From a Health and Safety (and dredging vessel availability) perspective how likely is it that

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:92: these dredging operations will be allowed to coincide with the other consented schemes by

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:92: the harbour authority? (11.3.10). It is also not clear if the combined dredging impacts (one

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:93: o Detail on how careful calculations of levels and placement of bunds/dredgings will be

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:93: o Details of suitable substrates – the non-toxic fines from maintenance dredgings – and

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:93: England suggests grab samples are taken at the proposed dredge site to ground

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:127: sites due to maintenance dredging and potential impacts to bird feeding and processes

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:127: maintenance dredged material).

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:127: Effects on food resources due to reduced water quality following dredging and Water and

TR030002-000675-Doc 6.3 Habitats Regulations Assessment_2 of 2.pdf:127: deposition of sediment disrobed during dredging in intertidal areas. Effect on water sediment

TR030002-000566-Doc 7.1 Planning Statement.pdf:5: the River Tees that will be subject to dredging activities. A narrow flat

TR030002-000566-Doc 7.1 Planning Statement.pdf:5:• Works No. 1 – dredging within the River Tees, the creation of a

TR030002-000566-Doc 7.1 Planning Statement.pdf:8: issues arising from dredging and piling have been assessed. Equally,

TR030002-000566-Doc 7.1 Planning Statement.pdf:16: section (where dredging of the River Tees is proposed) extends into the

TR030002-000566-Doc 7.1 Planning Statement.pdf:27: course of the proposed dredging activities;

TR030002-000566-Doc 7.1 Planning Statement.pdf:31: area extending into the administrative area of STBC (where dredging is

TR030002-000566-Doc 7.1 Planning Statement.pdf:32: subject to dredging activities.

TR030002-000566-Doc 7.1 Planning Statement.pdf:35: 2. Dredging of the river channel approach (to a depth of -16.95m AOD)

TR030002-000566-Doc 7.1 Planning Statement.pdf:36: • Works No. 1 – dredging within the River Tees, the creation of a

TR030002-000566-Doc 7.1 Planning Statement.pdf:38: 1. Dredging – creation of maximum envelopes for each Phase within

TR030002-000566-Doc 7.1 Planning Statement.pdf:38: which capital dredging of parts of the River Tees will be required to

TR030002-000566-Doc 7.1 Planning Statement.pdf:46:6.39 The construction of a port development may involve dredging, dredge

TR030002-000566-Doc 7.1 Planning Statement.pdf:51: 10. Marine dredging and disposal – the MPS requires that in

TR030002-000566-Doc 7.1 Planning Statement.pdf:51: evaluation of the potential adverse effects of any dredging activity or

TR030002-000566-Doc 7.1 Planning Statement.pdf:55: material during the dredging process; and

TR030002-000566-Doc 7.1 Planning Statement.pdf:61: Quay, including dredging, that would facilitate the use of the quay by a

TR030002-000566-Doc 7.1 Planning Statement.pdf:62: respect of navigation concerns and the potential conflicts of dredging

TR030002-000566-Doc 7.1 Planning Statement.pdf:63: undertake channel dredging, whilst also delivering piling. These

TR030002-000566-Doc 7.1 Planning Statement.pdf:63: carried out largely outside of the main channel. Only localised dredging

TR030002-000566-Doc 7.1 Planning Statement.pdf:63: period of 7 weeks whilst the dredging is completed. During Phase 2 of

TR030002-000566-Doc 7.1 Planning Statement.pdf:63: extraction of 13 Mtpa from the minehead), capital dredging within a

TR030002-000566-Doc 7.1 Planning Statement.pdf:63: dredging to extend the berth pocket created during Phase 1. The

TR030002-000566-Doc 7.1 Planning Statement.pdf:63: dredging of the approach channel would result in a temporary impact

TR030002-000566-Doc 7.1 Planning Statement.pdf:63: phases, as they would normally with any routine dredging and

TR030002-000566-Doc 7.1 Planning Statement.pdf:64: (ii) Dredging

TR030002-000566-Doc 7.1 Planning Statement.pdf:64: impact of the proposed dredging upon existing Infrastructure, including

TR030002-000566-Doc 7.1 Planning Statement.pdf:65: significantly deeper than the proposed dredge depth of approximately

TR030002-000566-Doc 7.1 Planning Statement.pdf:65: proposed quay and area to be dredged. On this basis, it is concluded

TR030002-000566-Doc 7.1 Planning Statement.pdf:65: that the construction dredging works required in the main channel would

TR030002-000566-Doc 7.1 Planning Statement.pdf:65: pipelines and tunnels following dredging has the potential to result in

TR030002-000566-Doc 7.1 Planning Statement.pdf:65: put in place to ensure their protection prior to the dredging works taking

TR030002-000566-Doc 7.1 Planning Statement.pdf:66: resulting from the construction dredging and piling activities. It is noted

TR030002-000566-Doc 7.1 Planning Statement.pdf:66: concentration of total suspended solids as a result of the dredging and

TR030002-000566-Doc 7.1 Planning Statement.pdf:72: platform and the bank. It would, however, require more dredging to

TR030002-000566-Doc 7.1 Planning Statement.pdf:72: dredging of the River Tees and provide increased stability to the

TR030002-000566-Doc 7.1 Planning Statement.pdf:72: Bran Sands 3. These works seek to use dredged material

TR030002-000566-Doc 7.1 Planning Statement.pdf:80: with arisings from dredging of the River Tees and to seek to reuse

TR030002-000566-Doc 7.1 Planning Statement.pdf:88: adversely affect biodiversity or geodiversity through dredging, cargo

TR030002-000566-Doc 7.1 Planning Statement.pdf:88: land as well as through dredging and vessel movements. Any

TR030002-000566-Doc 7.1 Planning Statement.pdf:88: works will use dredged material to create shallow water areas

TR030002-000566-Doc 7.1 Planning Statement.pdf:89: maintenance dredged muds).

TR030002-000566-Doc 7.1 Planning Statement.pdf:89: dredging, dock construction and flood or coastal protection measures.

TR030002-000566-Doc 7.1 Planning Statement.pdf:90: area and it could be expected that material dredged as part of the

TR030002-000566-Doc 7.1 Planning Statement.pdf:97: Tees. Further, the proposed dredging and design of the quay and

TR030002-000566-Doc 7.1 Planning Statement.pdf:102: Capital Dredging

TR030002-000566-Doc 7.1 Planning Statement.pdf:102: Dredging activities to create a new harbour, berth or waterway, or to

TR030002-000566-Doc 7.1 Planning Statement.pdf:102: Maintenance dredging may be required later to deepen or maintain

TR030002-000467-Section 6 App 6.1 Land quality investigation meeting note.pdf:4: • dredging for a section of the approach channel and to create a berth pocket

TR030002-000467-Section 6 App 6.1 Land quality investigation meeting note.pdf:4:deeper water near to the river channel in order to reduce dredging requirements or, in the case of

TR030002-000467-Section 6 App 6.1 Land quality investigation meeting note.pdf:4:the solid quay structure, to balance the dredge and reclamation quantities.

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:5:1.2.4 This guidance is supplemented by the use of the Clearing the Waters: A user guide for marine dredging

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:5: assessments on projects requiring dredging and disposal. Where the assessment suggests that

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:9:  Capital dredging to create a berthing pocket and dredging of a section of the adjacent approach

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:9:  Maintenance dredging of the berthing pocket.

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:10: sediment plumes created by capital dredging and the offshore disposal of dredged

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:10: the construction of the port terminal and the capital dredging would be undertaken

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:15:Reduce impact of dredging

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:15:Prepare a dredging / disposal strategy

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:15:Alter timing of dredging / disposal

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:16:Site selection (dredged material disposal) (e.g. avoid sensitive sites)

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:20:  Changes to water quality (including physico-chemical changes) associated with dredging and disposal.

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:20:  Temporary loss of subtidal habitats associated with dredging/disposal.

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:20: Operation  Changes to hydromorphology associated with the presence of new quay structure and increase in dredge depth.

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:22:Table 9a Preliminary assessment of potential impacts on the Tees transitional water body (GB510302509900) associated with dredging– using Clearing

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:22:WFD parameter Classification Dredging triggers for potential effects on WFD parameters at water body level

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:22:Phytoplankton Composition, In EA guidance this element is screened out as dredging is generally considered to only have No

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:22:(angiosperms, saltmarsh, a.Will the dredging directly remove intertidal area or is it within 10m of MLWS (if yes,

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:22:Benthic invertebrate fauna b. Proportion of water body impacted by dredging activity will be >5% (formula to be

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:22: applied 1.5 x dredge footprint) – if yes, further assessment is triggered.

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:22:Fish Fauna Response: The dredge area is located within the water body but is not >5%.

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:22: - Is the dredging dispersive or non-dispersive? Response: The dredge is non-

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:22: - When will the dredge occur (score 1 if March to October, score 0 if November to

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:22: February). Response: Dredging will occur over a period of 6 months (Score

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:23:WFD parameter Classification Dredging triggers for potential effects on WFD parameters at water body level

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:23:Inter-tidal zone structure Will the dredging directly remove intertidal or is it within 10m of MLWS? Response: Yes Yes

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:23:Dominant Currents Direction Is the dredge a significant change to a maintenance dredge? Response: Yes, this is a Yes

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:23: capital project and the channel area of the dredge will be deepened beyond normal

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:23:Freshwater flow (transitional - In the Environment Agency guidance this element is screened out as dredging is not generally No

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:23:Wave exposure - Will the dredge take place in shallow water? Response: Yes Yes

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:23: be dredged and whether dredging is dispersive. Response: Duration of the activity will be

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:23:Thermal conditions Screened out as dredging will not impact on thermal conditions. No

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:23: be dredged and whether dredging is dispersive. Response: As above, score would be 1 in

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:23: relation to the potential time of year in which the dredging would be undertaken.

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:23: dredging is near to raw sewage inputs and where oxygen issues have been identified within

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:23: Response: In relation to these additional issues, dredging will not occur in the vicinity

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:23: the dissolved oxygen concentrations on the water body associated with dredging are

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:24:WFD parameter Classification Dredging triggers for potential effects on WFD parameters at water body level

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:24:Nutrient conditions Is the dredge a capital or new dredge? Response: Yes Yes

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:24:Freshwater Fish Directive, Relevant legislation Due to the scale, nature and location of the proposed dredging in relation to these protected Yes

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:25:Physico-chemical  No other pathways identified that will impact on nutrient levels (dredging already Yes

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:28:  The dredging plume is not predicted to enter into this water body.

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:28:  The dredging plume is not predicted to enter into this water body.

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:35: through the use of dredged materials (for the solid

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:36:  Potential impacts on biological elements associated with dredging (phytoplankton however, is

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:36:  Potential impacts on hydromorphological parameters associated with dredging; specifically

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:36: contaminants within sediments to be dredged.

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:36:  Potential impacts on protected areas associated with dredging (designated European sites have

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:36:  Temporary loss of subtidal habitat associated with dredging (16ha).

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:36: are anticipated within Seal Sands as hydrodynamic modelling indicates that the extent of the dredging

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:37:4.1.18 There are a number of mitigation measures in place which relate to dredging and disposal within the

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:37: existing dredging strategy is updated to ensure that the capital and maintenance dredging proposed for

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:37: relate to the designation of Seal Sands under this directive (see Section 7 of the ES). The dredging

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:37:  Develop a dredging strategy to ensure that capital and maintenance dredging are undertaken in

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:37: dredging for example are anticipated to be short-term (months) and will cease following cessation of the

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:37: during dredging. As discussed with Section 11 of the ES, sediment plumes induced by dredging are

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:37: dredging, resulting in rapid dispersion of suspended sediment. The installation of the new quay will

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:38:Dredging/presence of There is a possibility that the A TELEMAC-3D flow model was established to Since significant Given that potential

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:38:new quay (currents) dredging could impact on simulate currents in the Tees estuary (see changes are not changes are unlikely to be

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:38: potential. This could be by changing function of the capital dredging, with currents are predicted. proposed development is

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:38: suggesting that the dredging is predicted to draw

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:39:Dredging/presence of There is a possibility that the Given that no capital dredging of the approach Since significant Given that potential

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:39:new quay (waves) dredging could impact on channel is proposed between the location of the changes are not changes are unlikely to be

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:39: dredged slope and new revetment to the rear of

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:41: There is the possibility that dredging could The soft muddy sediments will be dredged using a Any deterioration in the Since control measures

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:41: release suspended solids which contain high back hoe dredging fitted with an enclosed grab. physico-chemical status of are already built into the

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:41:Surface water risk of contamination. As a result the risk is the status of the biological dredging the more

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:41:management only applicable to the dredging of the softer quality elements. contaminated softer

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:41:dredging) water is anticipated.

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:42: There is the possibility that dredging could The soft muddy sediments will be dredged using a The potential for EQS Since control measures

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:42: release significant levels of specific pollutants back hoe dredging fitted with an enclosed grab. failure has the potential to are already built into the

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:42: dredging the more

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:42:dredging

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:43:Temporary Whilst the habitat will not be permanently lost, The dredging required for the proposed scheme Since the loss of subtidal habitat is only temporary

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:43:loss of habitat there will be a disturbance during dredging. would result in the direct loss of benthic community and recovery will occur, deterioration is only

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:43:associated within the footprint of the dredge. However, this does predicted to be on a small scale and only for a

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:43:with dredging not constitute a long term habitat loss but in the short limited period of time. As a result, the proposed

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:43: within the capital dredged area. The infaunal benthic compliant with the WFD requirements.

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:43: dredged approach channel was found to be similar

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:45:Potential The potential release of suspended solids In general, sediment plumes induced by dredging are Given that the potential changes are unlikely to be

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:45: dredging, silts and clays would rapidly disperse away

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:45: from the dredge area due to high current speeds. In

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:45: high rainfall and ongoing maintenance dredging.

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:48: Environment Agency (2012). Clearing the waters. Marine Dredging and the Water Framework Directive.

TR030002-000464-Section 4 App 4.3 WFD compliance assessment.pdf:48: dredging Accessed 14/05/14

TR030002-000253-Regulation 24 Transboundary Screening document (5).pdf:1: o quay (including dredging)

TR030002-000253-Regulation 24 Transboundary Screening document (5).pdf:2: • Able UK Seaton port (and capital dredging of Seaton

TR030002-000253-Regulation 24 Transboundary Screening document (5).pdf:2: proposed development includes dredging works in the approach

TR030002-000253-Regulation 24 Transboundary Screening document (5).pdf:2: what use will be made of the dredged material, but options

TR030002-000253-Regulation 24 Transboundary Screening document (5).pdf:3: The Scoping Report confirms that the dredging works have the

TR030002-000253-Regulation 24 Transboundary Screening document (5).pdf:3: dredging works.

TR030002-000253-Regulation 24 Transboundary Screening document (5).pdf:3: by the piling and dredging works, but has not identified any

TR030002-000253-Regulation 24 Transboundary Screening document (5).pdf:4: • offshore disposal of dredged material.

TR030002-000253-Regulation 24 Transboundary Screening document (5).pdf:5:application. The extent of the dredging works is now limited to the immediate approach

TR030002-000253-Regulation 24 Transboundary Screening document (5).pdf:5:Offshore disposal of dredged material

TR030002-000253-Regulation 24 Transboundary Screening document (5).pdf:5:The ES includes an assessment of the potential effects of offshore disposal of dredged

TR030002-000253-Regulation 24 Transboundary Screening document (5).pdf:5:material arising from capital dredging (ES Section 22: Offshore disposal of dredged

TR030002-000253-Regulation 24 Transboundary Screening document (5).pdf:5:In relation to commercial navigation, the numbers of dredging vessels transiting through

TR030002-000253-Regulation 24 Transboundary Screening document (5).pdf:5:dredged material.

TR030002-000655-Doc 3.8A - Indicative Layout - Solid Quay Construction - Northern Route.pdf:1: DREDGED AREA

TR030002-000655-Doc 3.8A - Indicative Layout - Solid Quay Construction - Northern Route.pdf:1: TING DREDGED SIDE SLOPES

TR030002-000860-151216 TR030002 York Potash Ltd - Document 6.11B - Outline Ecological Management Plan.pdf:7: Use of an enclosed grab to dredge the contaminated sediment (thereby minimising resuspension of

TR030002-000860-151216 TR030002 York Potash Ltd - Document 6.11B - Outline Ecological Management Plan.pdf:7: Trailing Suction Hopper Dredger (TSHD)) are optimised with respect to each other.

TR030002-000860-151216 TR030002 York Potash Ltd - Document 6.11B - Outline Ecological Management Plan.pdf:7: Use of an experienced operator when dredging.

TR030002-000860-151216 TR030002 York Potash Ltd - Document 6.11B - Outline Ecological Management Plan.pdf:7: Limiting the swing of the backhoe over the water during backhoe dredging.

TR030002-000860-151216 TR030002 York Potash Ltd - Document 6.11B - Outline Ecological Management Plan.pdf:7: head and optimising the design of the cutter head when using a Cutter Suction Dredger (CSD).

TR030002-000860-151216 TR030002 York Potash Ltd - Document 6.11B - Outline Ecological Management Plan.pdf:8: Placement of (clean) material derived from the dredging which forms part of the proposed scheme, as

TR030002-000860-151216 TR030002 York Potash Ltd - Document 6.11B - Outline Ecological Management Plan.pdf:8: well as maintenance dredging, within Bran Sands lagoon. These measures would include the creation

TR030002-001873-Decision holding letter.pdf:1: construction and operation of a quay structure; the dredging of the approach

TR030002-001873-Decision holding letter.pdf:2: © dredging of up to 750,000 cubic metres of material from the approach

TR030002-001875-The York Potash Harbour Facilities Draft Amendment Order Final Validated.pdf:2: © dredging of up to 750,000 cubic metres of material from the approach channel and

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:7: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:7: “dredging” means using any device to move material (whether or not suspended in water) from

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:7: “gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:8: © dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:9: (b) dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:9: “sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:9: “silt” means dredged materials with a diameter of at least 31.25 and less than 62.5 micrometres;

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:29: (1)(3) dredging of approach channel and berth pocket; and

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:36: 1 1, 2, 4 and 9 (i) Dredging;

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:36: 2, 3 1 and 9 (i) Dredging; and

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:36: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:36: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) Dredging;

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:37: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) Dredging;

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:38: 12 and 13 1, 4, 5, 9 and 10 (i) Dredging;

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:41: 1 1, 2, 4 and 9 (i) Dredging;

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:42: 2, 3 1 and 9 (i) Dredging; and

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:42: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:42: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) Dredging;

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:43: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) Dredging;

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:44: 12 and 13 1, 4, 5 and 9 (i) Dredging;

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:51: Capital dredging and disposal

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:51: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:51: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:51:Dredged material type Open quay (m3) Solid quay (m3)

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:51: (3) For phases 1 and 2, the dredging of the contaminated silts will be undertaken using enclosed

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:52: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing Suction

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:52:Hopper Dredger (TSHD).

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:52: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) will be undertaken

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:52:using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2, dredging of sands

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:52:and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:52: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C (TY

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:52:150)offshore dredged material disposal sites—

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:53:scheme (i.e. with the use of the chosen alternative use of dredged material proposal(s)) has been

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:55: Capital dredging and, disposal conditions and debris

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:55: 35.34. The undertaker must agree a capital dredge and disposal strategy with the MMO at least 4

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:55: 36.35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:55: 37.36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:55:dredged material and disposed of to landat a registered onshore disposal site.

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:55:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:82: (b) agreeing a dredge and disposal strategy with the MMO under paragraph 35 of Schedule 5

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:83: (e) commencing any dredging operation,

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:83:the construction or maintenance of the tidal work or dredging operation or altered drawings.

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:83: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:83:paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:84:Capital dredge and disposal Schedule 5, paragraph 35 The whole strategy

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:86: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:89: may reasonably be put in dredging the river to remove the sedimentation or in making good

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:89: (b) carry out the necessary dredging at its own expense and subject to the prior approval of the

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:91:under any duty to dredge the accessapproaches from the river channel to the quay, or the berthing

TR030002-000750-Document 4.1A Draft DCO (Tracked).pdf:91: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the 1966

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:3: maintenance dredged material to create shallow water areas, intertidal margins and islands. The

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:3: Sands lagoon. The proposed use of dredged material to create the habitat enhancement proposals is

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:3: depth is present above the placed dredged material. The placement would have a very gradual profile

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:3: side slopes of the islands would be determined by the properties of the dredged material, with the

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:45: x dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:45: x placement of dredged material within Bran Sands lagoon (habitat enhancement proposals);

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:45: x dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:53: x mobilisation (including dredgers); x installation of fixtures and fittings;

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:53: x dredging of the river berths; services;

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:53: x mobilisation (including dredgers); x dredging of the river berths;

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:54: Dredging works 14 weeks 12 weeks

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:54: Dredging works 13 weeks 10 weeks

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:59: Maintenance dredging

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:59:3.2.7 There is an existing requirement for maintenance dredging of the approach channel and various berth

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:59: pockets in the Tees estuary. The existing maintenance dredging regime is implemented and managed

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:59: by PD Ports and the locations, volumes and frequency of dredging are well recorded.

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:59: and channel would need to be incorporated into the existing maintenance dredging strategy. The

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:59: material from maintenance dredging would be disposed of at the existing disposal site within Tees Bay,

TR030002-000438-ES Section 3 Project description_2 of 2.pdf:60:3.3.3 As set out above, alternative options for the use of the dredged arisings have also been considered.

TR030002-000710-York Potash Limited (Document 6.8A).pdf:9:14 The main mitigation measure to limit sediment plume is selection of the dredge method. Contaminated Deemed Marine Licence (Schedule 5)

TR030002-000710-York Potash Limited (Document 6.8A).pdf:9: sediments are to be dredged using an enclosed grab. Dredging of geological deposits may be

TR030002-000710-York Potash Limited (Document 6.8A).pdf:9: undertaken by Trailing Suction Hopper Dredging (TSHD), Cutter Suction Dredger (CSD) or backhoe, or

TR030002-000710-York Potash Limited (Document 6.8A).pdf:9: a combination of these. It is important to retain flexibility in the choice of dredging plant.

TR030002-000710-York Potash Limited (Document 6.8A).pdf:9: During backhoe dredging, an experienced operator would be used to minimise losses of sediment into

TR030002-000710-York Potash Limited (Document 6.8A).pdf:10: would be installed across the full width of the lagoon (around the location of placement of dredged

TR030002-000710-York Potash Limited (Document 6.8A).pdf:10: box would prevent significant release of suspended sediments during dewatering of placed dredged

TR030002-000710-York Potash Limited (Document 6.8A).pdf:11:29 Measures to mitigate the direct loss of intertidal and subtidal habitat during dredging, piling and Deemed Marine Licence (Schedule 5)

TR030002-000710-York Potash Limited (Document 6.8A).pdf:22: of Investigation (WSI) for dredging and other marine related construction activity.

TR030002-000710-York Potash Limited (Document 6.8A).pdf:22:63 PD Teesport will manage any potential conflicts in the same way as routine dredging and other N/A

TR030002-000710-York Potash Limited (Document 6.8A).pdf:23: Breagh Onshore Gas Pipeline could be implemented prior to dredging works being undertaken. One (Requirement 6) and Draft Order – Protective

TR030002-000710-York Potash Limited (Document 6.8A).pdf:25:Section 22 – Offshore disposal of dredged material

TR030002-000790-150821 TR030002 CATS Parties Protective Provisions.pdf:6: (g) details of the method location and extent of any dredging, an technical assessment of the

TR030002-000790-150821 TR030002 CATS Parties Protective Provisions.pdf:6: likely effect of the dredging on the protected crossings and any mitigation measures which are

TR030002-000790-150821 TR030002 CATS Parties Protective Provisions.pdf:9:14. (1) Where excavation of trenches (including excavation by dredging) adjacent to a pipe affects its

TR030002-000018-Examination Library.pdf:15:APP-258 Section 22: Offshore Disposal of Dredged Material

TR030002-000018-Examination Library.pdf:23:REP3-008 York Potash Ltd - Dredging Note. Appendix 3 of Submissions from

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:1:Subject : YPL: Revised dredging arrangement in the vicinity of the sub River

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:1:The construction includes a piled berthing structure, dredging to form a new berth pocket to a

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:1:level of -16mCD and dredging in the existing River Tees navigation channel to -14.1mCD

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:1:RHDHV Technical Note TN011 (Reference 1) considered the possible impact of dredging over

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:1:the sub River Tees pipelines / tunnels. However the dredging arrangement has since been

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:1:amended such that there will be practically no capital dredging of the river bed directly overlying

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:1:works on the sub River Tees pipelines / tunnels in light of the revised dredging arrangement.

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:1:2.0 Revised dredging arrangement

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:1:The revised dredging arrangement is shown on RHDHV Drawing Nos. PB1586-SK105 Rev. 4.

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:1:The dredging of the navigation channel to -14.1mCD (-16.95mOD) has been re-arranged such

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:1:that the crest of the dredged slopes approximately coincides with the alignment of the Breagh

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:1:The dredging will be carried out in two phases. The first phase will involve the dredging of a

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:1:berthed pocket to -16mCD and dredging of the navigation channel to -14.1 mCD at the

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:1:will involve the dredging of a berthed pocket to -16mCD and dredging of the navigation channel

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:2:3.0 Discussion of the possible effects of dredging / pipelines

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:2:A schematic cross section of the revised dredging at mid-channel (Section A-A) is shown in

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:2:Figure 2 below. The reduction in effective overburden pressure due to the dredging of the river

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:2:channel to -14.1mCD would be approximately 41 kPa, assuming that the material dredged

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:2:effective overburden pressure (overburden relief) due to the dredging is likely to reduce with

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:2:depth and distance away from the dredging according to a Boussinesq (Reference 2) type

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:3:each pipeline / tunnel likely to be affected by the revised dredging arrangement. The table also

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:3:provides comparative values for the original dredging arrangement. The values for reduction in

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:3:depth and distance away from the dredging varies according to a Boussinesq type distribution.

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:3: Original dredging arrangement Revised dredging arrangement

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:4:pressure caused by the dredging and the heave potential of the strata around the pipelines. The

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:4:information in Table 1 indicates that the revised dredging arrangement would significantly reduce

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:4:comparison with the originally proposed dredging. However there is insufficient information of

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:4:result from the revised dredging associated with the development of the York Potash Marine

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:4:Export Facility. Preliminary estimations indicate that the revised dredging arrangement

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:4:significantly reduces the risk of the heave associated with dredging affecting the ICI No. 2

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:5:1. Royal HaskoningDHV (2014). Technical Note 11. YPL: Dredging and piling in the vicinity of

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:6: 1. DREDGED PROFILE, PIPE AND TUNNEL DATA TAKEN FROM PD

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:6: DREDGING

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:6: DREDGING

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:6: SEMBCORP) APPROXIMATE DREDGED PROFILE. SEMBCORP) PIPELINE CATS

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:6: THRUST BORE (DREDGED PROFILE, PIPE AND TUNNEL DATA TAKEN FROM PD TEESPORT NORTHERN GATEWAY PROJECT RIVER SECTION 370 DATED 04/2006) (3 No) TUNNEL

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:6: -14.1mCD NEW DREDGED CHANNEL

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:6: DREDGED LEVEL -14.5mCD

TR030002-000757-Document 8.3 Appendix 4 - No 2 Tunnel Note.pdf:6: PROPOSED DREDGING

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:9: LSN Sample No. Location Dredge Area no. Excluded TS% AS CD CR CU HG NI

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:10: LSN Sample No. Location Dredge Area no. Excluded TS% AS CD CR CU HG NI

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:11: LSN Sample No. Location Dredge Area no. Excluded TS (%) 23BA ACENAPH ACENAPT ANTHRAC BAA BAP BBF BENZGHI BEP

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:11: LSN Sample No. Location Dredge Area no. Excluded TS (%) C2N C3N CHRYSEN DBENZAH FLUORAN FLUOREN INDPYR NAPTH PERYLE

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:12: LSN Sample No. Location Dredge Area no. Excluded TS (%) 23BA ACENAPH ACENAPT ANTHRAC BAA BAP BBF BENZGHI BEP

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:12: LSN Sample No. Location Dredge Area no. Excluded TS (%) C2N C3N CHRYSEN DBENZAH FLUORAN FLUOREN INDPYR NAPTH PERYLE

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:13: LSN Sample Location Dredge Area no. Excluded TS (%) CB#101 CB#105 CB#110 CB#118 CB#128 CB#138 CB#141 CB#149 CB#151

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:13: LSN Sample Location Dredge Area no. Excluded TS (%) CB#153 CB#156 CB#158 CB#170 CB#18 CB#180 CB#183 CB#187 CB#194

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:13: LSN Sample Location Dredge Area no. Excluded TS (%) CB#28 CB#31 CB#44 CB#47 CB#49 CB#52 CB#66 TOT25CBS TOTICES7

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:14: LSN Sample Location Dredge Area no. Excluded TS (%) CB#101 CB#105 CB#110 CB#118 CB#128 CB#138 CB#141 CB#149 CB#151

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:14: LSN Sample Location Dredge Area no. Excluded TS (%) CB#153 CB#156 CB#158 CB#170 CB#18 CB#180 CB#183 CB#187 CB#194

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:14: LSN Sample Location Dredge Area no. Excluded TS (%) CB#28 CB#31 CB#44 CB#47 CB#49 CB#52 CB#66 TOT25CBS TOTICES7

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:15: LSN Sample Location Dredge Area no. Excluded TS (%) AHCH BHCH GHCH DIELDRIN HCB PPDDE PPDDT PPTDE

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:15: LSN Sample Location Dredge Area no. Excluded TS (%) BDE100 BDE138 BDE 153 BDE 154 BDE 17 BDE 183 BDE 28 BDE 47

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:15: LSN Sample Location Dredge Area no. Excluded TS (%) BDE66 BDE 85 BDE 99 BDE 209

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:16: LSN Sample Location Dredge Area no. Excluded TS (%) AHCH BHCH GHCH DIELDRIN HCB PPDDE PPDDT PPTDE

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:16: LSN Sample Location Dredge Area no. Excluded TS (%) BDE100 BDE138 BDE 153 BDE 154 BDE 17 BDE 183 BDE 28 BDE 47

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:16: LSN Sample Location Dredge Area no. Excluded TS (%) BDE66 BDE 85 BDE 99 BDE 209

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:17: LSN Sample No. Location Dredge Area no. Excluded TS (%)

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:18: LSN Sample No. Location Dredge Area no. Excluded TS (%)

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:19:%Gravel 0.48 Dredge Area Tonnage Exempt from Chemical Analysis*

TR030002-000472-Section 7 App 7.2 Sediment quality data.pdf:20:%Gravel 0.02 Dredge Area Tonnage Exempt from Chemical Analysis*

TR030002-000725-York Potash Limited (Document 6.10).pdf:8:  capital dredging (i.e. deepening beyond the current maintained depth) of a section of the

TR030002-000725-York Potash Limited (Document 6.10).pdf:27: implemented prior to dredging works being undertaken. One method which could be adopted to stiffen the material above the pipeline is jet

TR030002-001854-Secretary of State’s Decision Letter and Statement of Reasons.pdf:1:quay structure; the dredging of the approach channel and a berth pocket; and the

TR030002-001854-Secretary of State’s Decision Letter and Statement of Reasons.pdf:5:Marine dredging and disposal and navigation

TR030002-001854-Secretary of State’s Decision Letter and Statement of Reasons.pdf:5:dredging and disposal and the navigational effects of the scheme have been satisfactorily

TR030002-001854-Secretary of State’s Decision Letter and Statement of Reasons.pdf:6:assets would be over-sailed by the conveyor system or affected by dredging operations

TR030002-001854-Secretary of State’s Decision Letter and Statement of Reasons.pdf:9:acceptable; and that the proposed dredging and construction and operation of the quay

TR030002-001854-Secretary of State’s Decision Letter and Statement of Reasons.pdf:9:ER 8.7.29 about the effects of dredging and about the rights sought by the applicant to

TR030002-001854-Secretary of State’s Decision Letter and Statement of Reasons.pdf:9:from dredging operations and that the Order as amended during the examination had

TR030002-000453-ES Section 18 Infrastructure.pdf:12: quay and area to be dredged.

TR030002-000453-ES Section 18 Infrastructure.pdf:13: Potential direct impacts on existing Infrastructure due to dredging and piling for quay

TR030002-000453-ES Section 18 Infrastructure.pdf:13:18.5.1 With respect to capital dredging and piling, the potential direct effect of the construction phase is limited

TR030002-000453-ES Section 18 Infrastructure.pdf:13: to impacts on pipelines and cables that cross the Tees estuary. However, the proposed dredge

TR030002-000453-ES Section 18 Infrastructure.pdf:13: bores. No dredging or construction would occur above this Infrastructure, and no impact would arise

TR030002-000453-ES Section 18 Infrastructure.pdf:15:18.5.15 The proposed dredging and piling activities within the Tees estuary have the potential to impact upon

TR030002-000453-ES Section 18 Infrastructure.pdf:15:18.5.16 As discussed in Section 8.5, the tidal exchange within the Tees estuary during dredging and piling

TR030002-000453-ES Section 18 Infrastructure.pdf:15:18.5.17 The results of the sediment plume dispersion modelling for a backhoe dredger and CSD, presented and

TR030002-000453-ES Section 18 Infrastructure.pdf:15: that is suspended during capital dredging using a CSD or backhoe. Furthermore, it is proposed that an

TR030002-000453-ES Section 18 Infrastructure.pdf:15: enclosed grab would be utilised to dredge the contaminated sediment that overlies the geological

TR030002-000453-ES Section 18 Infrastructure.pdf:16: outlined within Section 7.5 (with regard to minimising sediment plume dispersion during dredging)

TR030002-000453-ES Section 18 Infrastructure.pdf:16: Potential indirect impact on existing Infrastructure due to dredging

TR030002-000453-ES Section 18 Infrastructure.pdf:16: siting of the proposed port terminal (and associated capital dredging) on the Bran Sands frontage. The

TR030002-000453-ES Section 18 Infrastructure.pdf:16:18.6.2 Capital dredging within the estuary would reduce the depth of cover overlying the Breagh Onshore Gas

TR030002-000453-ES Section 18 Infrastructure.pdf:16: findings of the ground investigation, measures to control heave would be implemented prior to dredging

TR030002-000453-ES Section 18 Infrastructure.pdf:17: pipeline could be implemented prior to the dredging works being undertaken. One method which could

TR030002-000453-ES Section 18 Infrastructure.pdf:17: risk of an indirect impact occurring due to dredging (e.g. heave) would reduce to a low level.

TR030002-000453-ES Section 18 Infrastructure.pdf:18:18.8.4 The port terminal and capital dredging within the estuary would reduce the depth of cover overlying the

TR030002-000453-ES Section 18 Infrastructure.pdf:20:due to dredging and design stage.

TR030002-000453-ES Section 18 Infrastructure.pdf:20:due to dredging Pipeline. One such method would be jet

TR030002-000504-Section 20 App 20.4 Technical lighting assessment.pdf:7:  dredging (i.e. deepening beyond the current maintained depth) of a section of the approach

TR030002-000869-151216 TR030002 Tata Steel UK and Redcar Bulk Terminal - Comments on ExA_s dDCO.pdf:9: (g) details of the method location and extent of any dredging, a technical assessment of the

TR030002-000869-151216 TR030002 Tata Steel UK and Redcar Bulk Terminal - Comments on ExA_s dDCO.pdf:9: likely effect of the dredging on the protected crossings and any mitigation measures

TR030002-000869-151216 TR030002 Tata Steel UK and Redcar Bulk Terminal - Comments on ExA_s dDCO.pdf:12: 15.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a pipeline

TR030002-000861-SABIC UK Petrochemicals Limited.PDF:4: likely effect of the proposed works, especially dredging works, on the

TR030002-000861-SABIC UK Petrochemicals Limited.PDF:4: (iii) The Objectors’ main concerns in this regard are dredging and the

TR030002-000861-SABIC UK Petrochemicals Limited.PDF:14:(g) details of the method location and extent of any dredging, a technical assessment of the

TR030002-000861-SABIC UK Petrochemicals Limited.PDF:14: likely effect of the dredging on the protected crossings and any mitigation measures

TR030002-000861-SABIC UK Petrochemicals Limited.PDF:18: 15.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a

TR030002-000861-SABIC UK Petrochemicals Limited.PDF:47:(g) details of the method location and extent of any dredging, a technical assessment of the

TR030002-000861-SABIC UK Petrochemicals Limited.PDF:47: likely effect of the dredging on the protected crossings and any mitigation measures

TR030002-000861-SABIC UK Petrochemicals Limited.PDF:50: 15.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a

TR030002-000445-ES Section 10 Terrestrial ecology.pdf:25: comprise the placement of (clean) material derived from the dredging which forms part of the proposed

TR030002-000445-ES Section 10 Terrestrial ecology.pdf:25: scheme, as well as maintenance dredging, within Bran Sands lagoon. These enhancement measures

TR030002-000445-ES Section 10 Terrestrial ecology.pdf:27: islands using dredged material.

TR030002-000769-York Potash Ltd (2).pdf:7: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-000769-York Potash Ltd (2).pdf:7: “dredging” means using any device to move material (whether or not suspended in water) from

TR030002-000769-York Potash Ltd (2).pdf:7: “gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-000769-York Potash Ltd (2).pdf:8: © dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-000769-York Potash Ltd (2).pdf:9: (b) dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-000769-York Potash Ltd (2).pdf:9: “sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-000769-York Potash Ltd (2).pdf:9: “silt” means dredged materials with a diameter of at least 31.25 and less than 62.5 micrometres;

TR030002-000769-York Potash Ltd (2).pdf:29: (3) dredging of approach channel and berth pocket; and

TR030002-000769-York Potash Ltd (2).pdf:35: 1 1, 2, 4 and 9 (i) Dredging;

TR030002-000769-York Potash Ltd (2).pdf:35: 2, 3 1 and 9 (i) Dredging; and

TR030002-000769-York Potash Ltd (2).pdf:35: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000769-York Potash Ltd (2).pdf:35: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) Dredging;

TR030002-000769-York Potash Ltd (2).pdf:36: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) Dredging;

TR030002-000769-York Potash Ltd (2).pdf:37: 12 and 13 1, 4, 5, 9 and 10 (i) Dredging;

TR030002-000769-York Potash Ltd (2).pdf:40: 1 1, 2, 4 and 9 (i) Dredging;

TR030002-000769-York Potash Ltd (2).pdf:41: 2, 3 1 and 9 (i) Dredging; and

TR030002-000769-York Potash Ltd (2).pdf:41: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000769-York Potash Ltd (2).pdf:41: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) Dredging;

TR030002-000769-York Potash Ltd (2).pdf:42: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) Dredging;

TR030002-000769-York Potash Ltd (2).pdf:43: 12 and 13 1, 4, 5 and 9 (i) Dredging;

TR030002-000769-York Potash Ltd (2).pdf:50: Capital dredging and disposal

TR030002-000769-York Potash Ltd (2).pdf:50: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-000769-York Potash Ltd (2).pdf:50: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-000769-York Potash Ltd (2).pdf:50:Dredged material type Open quay (m3) Solid quay (m3)

TR030002-000769-York Potash Ltd (2).pdf:50: (3) For phases 1 and 2, the dredging of the contaminated silts will be undertaken using enclosed

TR030002-000769-York Potash Ltd (2).pdf:50: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing Suction

TR030002-000769-York Potash Ltd (2).pdf:50:Hopper Dredger (TSHD).

TR030002-000769-York Potash Ltd (2).pdf:51: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) will be undertaken

TR030002-000769-York Potash Ltd (2).pdf:51:using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2, dredging of sands

TR030002-000769-York Potash Ltd (2).pdf:51:and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-000769-York Potash Ltd (2).pdf:51: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C (TY

TR030002-000769-York Potash Ltd (2).pdf:51:150)offshore dredged material disposal sites—

TR030002-000769-York Potash Ltd (2).pdf:54: Capital dredging, disposal conditions and debris

TR030002-000769-York Potash Ltd (2).pdf:54: 34. The undertaker must agree a capital dredge and disposal strategy with the MMO at least 4

TR030002-000769-York Potash Ltd (2).pdf:54: 35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-000769-York Potash Ltd (2).pdf:54: 36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-000769-York Potash Ltd (2).pdf:54: 37. The undertaker must ensure that any man-made material is separated from the dredged

TR030002-000769-York Potash Ltd (2).pdf:54:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-000769-York Potash Ltd (2).pdf:80: (e) commencing any dredging operation,

TR030002-000769-York Potash Ltd (2).pdf:80:dredging operation or altered drawings.

TR030002-000769-York Potash Ltd (2).pdf:80: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-000769-York Potash Ltd (2).pdf:80:paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-000769-York Potash Ltd (2).pdf:81:Capital dredge and disposal Schedule 5, paragraph 35 The whole strategy

TR030002-000769-York Potash Ltd (2).pdf:83: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000769-York Potash Ltd (2).pdf:86: may reasonably be put in dredging the river to remove the sedimentation or in making good

TR030002-000769-York Potash Ltd (2).pdf:86: (b) carry out the necessary dredging at its own expense and subject to the prior approval of the

TR030002-000769-York Potash Ltd (2).pdf:88:under any duty to dredge the approaches from the river channel to the quay, or the berthing pocket

TR030002-000769-York Potash Ltd (2).pdf:88: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the Tees

TR030002-000858-Huntsman Polyurethanes (UK) Limited.PDF:4: likely effect of the proposed works, especially dredging works, on the

TR030002-000858-Huntsman Polyurethanes (UK) Limited.PDF:4: (iii) The Objectors’ main concerns in this regard are dredging and the

TR030002-000858-Huntsman Polyurethanes (UK) Limited.PDF:14:(g) details of the method location and extent of any dredging, a technical assessment of the

TR030002-000858-Huntsman Polyurethanes (UK) Limited.PDF:14: likely effect of the dredging on the protected crossings and any mitigation measures

TR030002-000858-Huntsman Polyurethanes (UK) Limited.PDF:18: 15.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a

TR030002-000858-Huntsman Polyurethanes (UK) Limited.PDF:47:(g) details of the method location and extent of any dredging, a technical assessment of the

TR030002-000858-Huntsman Polyurethanes (UK) Limited.PDF:47: likely effect of the dredging on the protected crossings and any mitigation measures

TR030002-000858-Huntsman Polyurethanes (UK) Limited.PDF:50: 15.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a

TR030002-000689-York Potash Ltd (4).pdf:18: (a) in relation to works other than dredging any part of the authorised development—

TR030002-000689-York Potash Ltd (4).pdf:19: (b) in relation to dredging any part of the authorised development which—

TR030002-000689-York Potash Ltd (4).pdf:19: (g) details of the method location and extent of any dredging, ana technical assessment of the

TR030002-000689-York Potash Ltd (4).pdf:19: likely effect of the dredging on the protected crossings and any mitigation measures which

TR030002-000689-York Potash Ltd (4).pdf:22: 13.14.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a

TR030002-000689-York Potash Ltd (4).pdf:32: (g) details of the method location and extent of any dredging, a technical assessment of the

TR030002-000689-York Potash Ltd (4).pdf:32: likely effect of the dredging on the protected crossings and any mitigation measures which

TR030002-000689-York Potash Ltd (4).pdf:35: 14.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a pipeline

TR030002-000736-Redcar and Cleveland Borough Council (Local Impact Report).pdf:4: Dredging within the River Tees, the creation of a

TR030002-000736-Redcar and Cleveland Borough Council (Local Impact Report).pdf:5:(i) Dredging – creation of maximum envelopes for each phase within which

TR030002-000736-Redcar and Cleveland Borough Council (Local Impact Report).pdf:5:capital dredging of parts of the River Tees will be required to create both the

TR030002-000736-Redcar and Cleveland Borough Council (Local Impact Report).pdf:6:Tees that will be required to be dredged.

TR030002-000736-Redcar and Cleveland Borough Council (Local Impact Report).pdf:12:protocol, to be formalised within a written scheme of investigation for dredging

TR030002-000736-Redcar and Cleveland Borough Council (Local Impact Report).pdf:17:predicted adjacent to this structure due to the dredging required for the

TR030002-000461-Section 3 App 3.2 Option study report.pdf:8: and has a dredged channel for large ships (directly to the north of the Bran Sands

TR030002-000461-Section 3 App 3.2 Option study report.pdf:8:  It adjoins the existing RBT dredged channel;

TR030002-000422-Doc 5.1 Statement of Reasons.pdf:8:  Dredging of the berth area to form a berth pocket;

TR030002-000422-Doc 5.1 Statement of Reasons.pdf:8:  Dredging of the river channel to give access to the berth

TR030002-000422-Doc 5.1 Statement of Reasons.pdf:11: 1 1, 2, 4 and 9  Dredging;

TR030002-000422-Doc 5.1 Statement of Reasons.pdf:11: 2, 3 1 and 9  Dredging; and

TR030002-000422-Doc 5.1 Statement of Reasons.pdf:12:6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000422-Doc 5.1 Statement of Reasons.pdf:12:8 1, 2, 3, 4, 5, 6,  Dredging;

TR030002-000422-Doc 5.1 Statement of Reasons.pdf:14:11 1, 2, 3, 4, 5, 6,  Dredging;

TR030002-000422-Doc 5.1 Statement of Reasons.pdf:15:12 and 13 1, 4, 5, 9 and  Dredging;

TR030002-000422-Doc 5.1 Statement of Reasons.pdf:37:Class 1: Dredging and River Works (Works No. 1)

TR030002-000422-Doc 5.1 Statement of Reasons.pdf:37:(ii) Carry out capital and/or maintenance dredging to the berth

TR030002-000422-Doc 5.1 Statement of Reasons.pdf:39:(iii) Place capital and maintenance dredged material within the

TR030002-000018-Examination Library (5).pdf:15:APP-258 Section 22: Offshore Disposal of Dredged Material

TR030002-000018-Examination Library (5).pdf:23:REP3-008 York Potash Ltd - Dredging Note. Appendix 3 of Submissions from

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:4:The dredging method is to be discussed and agreed with the Environment Agency in advance of work to protect migratory Refer to Se

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:4:The preferred dredge window is from 1 December to 31 March, as the main salmonid migration period is from mid-April to Refer to Se

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:4:the end of November. The dredge may cause increased turbidity and a decrease in dissolved oxygen levels, providing a

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:5:A full assessment of impacts due to dredging will be needed in the ES. Sections 1

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:6: The criteria used to assess the environmental effects of underwater noise from piling and dredging are

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:13: proposed capital dredge and construction area has provided semi-quantitative records for the larger

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:17: Dredging noise

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:17:11.4.25 Figure 11-5 presents a 60 second time history of a recording of a dredger operating approximately 1km

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:17: from the noise survey vessel. A distance of 1km between the survey vessel and the dredger was

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:17: maintained to prevent disturbance to dredging operations.

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:17:11.4.26 The most obvious sound source in Figure 11-5 is the dredger’s echo sounder which pulses around

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:17: by the dredger machinery is of a fairly constant level, and at this distance fluctuated between -2 and

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:18: Figure 11-5 Time history of a dredger operating approximately 1km from the noise survey boat

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:18: of the measurements taken closer (approximately 500m) to the dredger but with no audible echo

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:18: sound level of the second dredger sample was 129.8 dB re 1 μPa RMS. This measurement can be

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:18: Figure 11-6 Frequency spectra of two recordings of dredging compared to a recording on the main channel

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:21: Area 2 Max 139.5 Many moored ships, such as 142.3 Dredger 500 m to 1 km

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:21: Min 113.0 Dredger 500 m - 1 km away 107.9 Pilot boat passed.

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:24: piling, dredging and increased vessel activity are presented in Section 8.4.

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:24:11.5.1 As discussed in Section 5, a proportion of the material that would be disturbed during dredging would

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:24:11.5.2 As discussed within Section 3, an enclosed grab is proposed for dredging the sediment present above

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:24: the geological deposits within the footprint of the capital dredge. Therefore this would prevent the

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:24: dispersion of contaminated sediment within the estuary during dredging. The potential for the release

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:24: of uncontaminated sediment during dredging of the sands and gravels, clay and marl remains. The text

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:24:11.5.4 The re-suspension of sediment as a consequence of the proposed dredging could also potentially affect

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25:11.5.5 The proposed dredging activities within the berth pocket for Phase 1 of both forms of quay construction

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25: are currently programmed for the summer months. Dredging of the river channel for Phase 1 and

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25: dredging for Phase 2 of both forms of quay construction are anticipated to be undertaken during the

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25: winter months. The proposed timing of the dredging operation during Phase 1 dredging of the river

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25: behavioural effects. In general, sediment plumes induced by dredging are considered to pose only a

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25: capacity to accommodate an increased oxygen demand, particularly where dredging takes place in

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25: short term basis during Phase 1 and Phase 2. During dredging, the silts and clays disturbed would

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25: rapidly disperse away from the location of the dredge due to the relatively high current speeds in the

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25:11.5.7 As discussed within Section 3.1, it is possible that the capital dredging could be carried out by a

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25: combination of a TSHD, CSD and a backhoe dredger, with an enclosed grab used for dredging

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25: contaminated sediments. Backhoe dredging and enclosed grab dredgers are considered likely to

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25: implemented during dredging).

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25:11.5.8 The tidal exchange within the Tees estuary would remain unrestricted during dredging, which is

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25: action), high rainfall and ongoing maintenance dredging within the estuary.

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25: TSS concentrations) from dredging is low, and an impact of minor adverse significance is predicted.

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25:11.5.11 As noted above, dredging works are to be undertaken by a combination of TSHD, enclosed grab, CSD

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25: order to minimise the dispersion of contaminated material during dredging. Mitigation measures

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:25: associated with a TSHD, CSD and backhoe dredging are presented below.

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:26:11.5.13 Backhoe dredging is the most environmentally acceptable approach as this would result in a

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:26: column during dredging activities with the backhoe dredger is to use an experienced operator, as

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:26: control over the dredging equipment is one of the main factors affecting sediment disturbance during

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:26: backhoe dredging. Other measures that limit plume generation comprise limiting the swing of the

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:26: Direct uptake and loss of fish, fish eggs and food resources during dredging and quay

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:26:11.5.16 During the capital dredging, there is the potential for fish, fish eggs and the food resources on which

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:26: fish rely to be taken up directly by the dredger. Potential effects are injury, mortality and displacement.

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:26: avoidance reaction, with the presence of the dredge head likely resulting in fish moving away from the

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:26: dredging of the channel. For the same reason, the channel is unlikely to represent an important

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:26:11.5.19 As assessed in Section 8.5, the effect of the dredging does not represent an irreversible loss of habitat;

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:26: the existing dredged approach channel.

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:26: of the dredging activity is, therefore, considered unlikely to impact upon fish populations within the

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:27: dredging the subtidal habitat.

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:27: vibration generated during dredging. There is also the potential to affect fish migration through the

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:28:11.5.30 The source levels for the noise from dredging operations (165 dB re 1 μPa and 183 dB re 1 μPa for a

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:28: backhoe and suction dredger respectively) are below the criteria discussed above. As such, physical

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:28: injury and behavioural effect as a result of noise generated from dredging operations are not

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:31: ranges for behavioural response from proposed dredging works.

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:31: Table 11-15 Summary of modelled ranges for 90 and 75 dBht (species) levels for backhoe and suction dredging

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:31: Species Backhoe dredging Suction dredging

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:42: from backhoe and suction dredging operations has predicted that noise levels would not be sufficient to

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:42: for backhoe and suction dredging is not predicted to reach the level at which traumatic hearing damage

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:42:11.5.43 The 90 and 75 dBht impact ranges for backhoe and suction dredging are predicted to be 10m or less.

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:43: well as the dredging and construction activities) would be for fish to move away from the source.

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:44: Potential impact on feeding resources for fish due to maintenance dredging

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:44:11.6.2 It is likely that there would be a requirement for maintenance dredging of the newly deepened part of

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:44:11.6.3 Maintenance dredging represents a repeated disturbance to the benthic community within the dredged

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:44: capital dredging. Although there would be recovery following capital dredging, the community would be

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:45:11.6.4 Maintenance dredging of the approach channel and berth pocket (and the associated regulator

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:45: noise disturbance from dredging, reduced water quality due to spills and leakages, direct uptake of fish

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:45: and fish eggs during dredging and loss of feeding areas.

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:46: well as the dredging and construction activities) would be for fish to move away from the source.

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:46: maintenance dredging.

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:47: dispersion during backhoe dredging is use of

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:47:dredging and Medium (solid Moderate adverse

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:48:on feeding beneficial) due to maintenance dredging are limited as th

TR030002-000446-ES Section 11 Fisheries and fishing activity.pdf:48:dredging

TR030002-001867-220120 Reduced consultation letter Fiinal.pdf:1: land concerned is only part of the dredging pocket within the Tees Estuary which is

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:4: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:5:“dredging” means using any device to move material (whether or not suspended in water)

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:5:“gravel” means dredged materials with a diameter of at least 2 millimetres and less than 64

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:6: © dredging of up to 750,000 cubic metres of material from the approach channel and berth

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:6: (iii) dredging of up to 750,000 cubic metres of material from the approach channel and

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:7:(b) dredging of up to 372,000 cubic metres of material from the approach channel and berth

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:7:“sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:7:“silt” means dredged materials with a diameter of at least 31.25 micrometres and less than

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:28: (1) dredging of approach channel and berth pocket; and

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:31: (3) If the construction of works (a) (extension of quay) and (b) (dredging) comprised in phase 2

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:35:7 1 and 9 Dredging and to obtain access for such purposes.

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:35:8 1, 2, 3, 4, 5, 6, 7a, 9 (a) Dredging;

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:36:11 1, 2, 3, 4, 5, 6, 7b, 9 (a) Dredging;

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:37:12 and 13 1, 4, 5 and 9 (a) Dredging;

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:39:1 1, 2, 4 and 9 (a) Dredging;

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:39:2, 3 1 and 9 (a) Dredging; and

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:39:6 1 and 9 Dredging and to obtain access for such purposes.

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:44:Capital dredging and disposal

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:44: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:44: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:44: Dredged material type Open quay (cubic metres) Solid quay (cubic metres)

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:44: (3) For phases 1 and 2, the dredging of the contaminated silts is to be undertaken using enclosed

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:44: (4) For phase 1 the dredging of the sands and gravels is to be undertaken using a Trailing

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:44:Suction Hopper Dredger (“TSHD”).

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:45: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) must be undertaken

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:45:using a backhoe dredger, TSHD or Cutter Suction Dredger (“CSD”). For phase 2, dredging of

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:45:sands and gravel is to be by a backhoe dredger, TSHD or CSD.

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:45: (6) The following maximum quantities of dredged material are to be disposed at Tees Bay C

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:45:(TY 150) offshore dredged material disposal sites—

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:48:Capital dredging, disposal conditions and debris

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:48: 34.—(1) The undertaker must agree a capital dredge and disposal strategy with the MMO at

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:48: (2) If any disposal or dredging activities are to take place after 1st October 2017—

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:48: months prior to that dredging or disposal activity being carried out;

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:48: validated by the MMO at least 6 weeks prior to the dredging or disposal activity being

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:48: © the dredging and disposal activity must not be carried out without the consent of the

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:48: 35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:48: 36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:48: 37. The undertaker must ensure that any man-made material is separated from the dredged

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:48:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:50:prior to demolition; and monitoring of dredging works in the harbour area in the vicinity of

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:68:(g) details of the method location and extent of any dredging, a technical assessment of the

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:68: likely effect of the dredging on the protected crossings and any mitigation measures

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:71: 15.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a pipeline

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:85: (e) commencing any dredging operation,

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:85:or dredging operation or altered drawings.

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:86: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:86: paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:86:Capital dredge and disposal Schedule 5, paragraph 34 The whole strategy

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:89: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:92: may reasonably be put in dredging the river to remove the sedimentation or in making

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:92: (b) carry out the necessary dredging at its own expense and subject to the prior approval of

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:93:any duty to dredge the approaches from the river channel to the quay, or the berthing pocket at the

TR030002-001865-The York Potash Harbour Facilities Order 2016 - Tracked Changes showing non-material amendments.pdf:93: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the 1966

TR030002-000253-Regulation 24 Transboundary Screening document.pdf:1: o quay (including dredging)

TR030002-000253-Regulation 24 Transboundary Screening document.pdf:2: • Able UK Seaton port (and capital dredging of Seaton

TR030002-000253-Regulation 24 Transboundary Screening document.pdf:2: proposed development includes dredging works in the approach

TR030002-000253-Regulation 24 Transboundary Screening document.pdf:2: what use will be made of the dredged material, but options

TR030002-000253-Regulation 24 Transboundary Screening document.pdf:3: The Scoping Report confirms that the dredging works have the

TR030002-000253-Regulation 24 Transboundary Screening document.pdf:3: dredging works.

TR030002-000253-Regulation 24 Transboundary Screening document.pdf:3: by the piling and dredging works, but has not identified any

TR030002-000253-Regulation 24 Transboundary Screening document.pdf:4: • offshore disposal of dredged material.

TR030002-000253-Regulation 24 Transboundary Screening document.pdf:5:application. The extent of the dredging works is now limited to the immediate approach

TR030002-000253-Regulation 24 Transboundary Screening document.pdf:5:Offshore disposal of dredged material

TR030002-000253-Regulation 24 Transboundary Screening document.pdf:5:The ES includes an assessment of the potential effects of offshore disposal of dredged

TR030002-000253-Regulation 24 Transboundary Screening document.pdf:5:material arising from capital dredging (ES Section 22: Offshore disposal of dredged

TR030002-000253-Regulation 24 Transboundary Screening document.pdf:5:In relation to commercial navigation, the numbers of dredging vessels transiting through

TR030002-000253-Regulation 24 Transboundary Screening document.pdf:5:dredged material.

TR030002-000564-Doc 6.8 Governance Tracker.pdf:9:12 The main mitigation measure to limit sediment plume is selection of the dredge method. Contaminated MMO Licence Sch 4

TR030002-000564-Doc 6.8 Governance Tracker.pdf:9: sediments are to be dredged using an enclosed grab. Dredging of geological deposits may be

TR030002-000564-Doc 6.8 Governance Tracker.pdf:9: undertaken by Trailing Suction Hopper Dredging (TSHD), Cutter Suction Dredger (CSD) or backhoe, or

TR030002-000564-Doc 6.8 Governance Tracker.pdf:9: During backhoe dredging, an experienced operator would be used to minimise losses of sediment into

TR030002-000564-Doc 6.8 Governance Tracker.pdf:10: would be installed across the full width of the lagoon (around the location of placement of dredged

TR030002-000564-Doc 6.8 Governance Tracker.pdf:10: box would prevent significant release of suspended sediments during dewatering of placed dredged

TR030002-000564-Doc 6.8 Governance Tracker.pdf:11:26 Measures to mitigate the direct loss of intertidal and subtidal habitat during dredging, piling and MMO Licence Sch 4

TR030002-000564-Doc 6.8 Governance Tracker.pdf:20: of Investigation (WSI) for dredging and other marine related construction activity.

TR030002-000564-Doc 6.8 Governance Tracker.pdf:20:58 PD Teesport will manage any potential conflicts in the same way as routine dredging and other N/A

TR030002-000564-Doc 6.8 Governance Tracker.pdf:21: Breagh Onshore Gas Pipeline could be implemented prior to dredging works being undertaken. One Order – Protective Provisions

TR030002-000564-Doc 6.8 Governance Tracker.pdf:23:Section 22 – Offshore disposal of dredged material

TR030002-000722-York Potash Limited 4.pdf:5:  A port terminal on the southern bank of the Tees estuary (with capital dredging of an

TR030002-000722-York Potash Limited 4.pdf:7: estuary because no capital dredging seaward of the location of the proposed port terminal

TR030002-000722-York Potash Limited 4.pdf:7: regime would not alter the present frequency of or methodology for maintenance dredging

TR030002-000722-York Potash Limited 4.pdf:10:  Cefas Guideline Action Levels for the disposal of dredged material; and,

TR030002-000722-York Potash Limited 4.pdf:10:  re-suspension of sediment during capital dredging and piling;

TR030002-000722-York Potash Limited 4.pdf:10:  reduced water quality due to placement of dredged material within Bran Sands lagoon (as

TR030002-000722-York Potash Limited 4.pdf:10: be dredged during the construction phase is contaminated. In order to prevent the dispersion

TR030002-000722-York Potash Limited 4.pdf:10: of this material during capital dredging, the use of an enclosed grab is proposed.

TR030002-000722-York Potash Limited 4.pdf:10: and water quality during dredging:

TR030002-000722-York Potash Limited 4.pdf:11:  limiting re-suspension of sediment during trailing suction hopper dredging can be achieved

TR030002-000722-York Potash Limited 4.pdf:11:  reduction of sediment plumes during backhoe dredging can be achieved by using an

TR030002-000722-York Potash Limited 4.pdf:11:  resuspension of sediment during cutter suction dredging can be reduced through

TR030002-000722-York Potash Limited 4.pdf:11: sediment during placement of dredged material required to construct the habitat

TR030002-000722-York Potash Limited 4.pdf:12: habitat due to quay construction and capital dredging, and noise and vibration disturbance to

TR030002-000722-York Potash Limited 4.pdf:12: construction of the port terminal and capital dredging.

TR030002-000722-York Potash Limited 4.pdf:15:7.4. In order to assess the environmental effects from impact piling and dredging activities, the

TR030002-000722-York Potash Limited 4.pdf:16:  direct uptake and loss of fish, fish eggs and food resources during dredging and port

TR030002-000722-York Potash Limited 4.pdf:16: Direct uptake and loss of fish, fish eggs and food resources during dredging and quay

TR030002-000722-York Potash Limited 4.pdf:16: channel is widespread and likely to be influenced by regular maintenance dredging. For the

TR030002-000722-York Potash Limited 4.pdf:16: significance is predicted to fish species due to dredging of the approach channel.

TR030002-000722-York Potash Limited 4.pdf:16: Direct uptake and loss of fish, fish eggs and food resources during dredging and quay

TR030002-000722-York Potash Limited 4.pdf:19: Agency’s Clearing the Waters: A user guide for marine dredging activities guidance.

TR030002-000862-INEOS UK SNS Limited (INEOS) - formerly DEA UK SNS Limited (DEA).PDF:4: likely effect of the proposed works, especially dredging works, on the

TR030002-000862-INEOS UK SNS Limited (INEOS) - formerly DEA UK SNS Limited (DEA).PDF:4: (iii) The Objectors’ main concerns in this regard are dredging and the

TR030002-000862-INEOS UK SNS Limited (INEOS) - formerly DEA UK SNS Limited (DEA).PDF:14:(g) details of the method location and extent of any dredging, a technical assessment of the

TR030002-000862-INEOS UK SNS Limited (INEOS) - formerly DEA UK SNS Limited (DEA).PDF:14: likely effect of the dredging on the protected crossings and any mitigation measures

TR030002-000862-INEOS UK SNS Limited (INEOS) - formerly DEA UK SNS Limited (DEA).PDF:18: 15.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a

TR030002-000862-INEOS UK SNS Limited (INEOS) - formerly DEA UK SNS Limited (DEA).PDF:47:(g) details of the method location and extent of any dredging, a technical assessment of the

TR030002-000862-INEOS UK SNS Limited (INEOS) - formerly DEA UK SNS Limited (DEA).PDF:47: likely effect of the dredging on the protected crossings and any mitigation measures

TR030002-000862-INEOS UK SNS Limited (INEOS) - formerly DEA UK SNS Limited (DEA).PDF:50: 15.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a

TR030002-000452-ES Section 17 Coastal protection and flood defence.pdf:15: predicted the effects arising from the proposed dredging and both options for the quay; simulations of

TR030002-000452-ES Section 17 Coastal protection and flood defence.pdf:15:17.5.12 Given that no capital dredging of the approach channel is proposed seawards of the section channel

TR030002-000452-ES Section 17 Coastal protection and flood defence.pdf:15:17.5.14 The proposed dredging is not predicted to change the overall pattern of wave conditions throughout the

TR030002-000452-ES Section 17 Coastal protection and flood defence.pdf:15: considered to be a result of the dredging required for the scheme.

TR030002-000452-ES Section 17 Coastal protection and flood defence.pdf:15: due to the proposed dredging and quay construction, an impact of negligible significance is anticipated

TR030002-000452-ES Section 17 Coastal protection and flood defence.pdf:16: adjacent to the open quay structure. This small increase would arise as a result of the dredging

TR030002-000738-York Potash Limited 3.pdf:6:  A port terminal on the southern bank of the Tees estuary (with capital dredging of an

TR030002-000738-York Potash Limited 3.pdf:8: estuary because no capital dredging seaward of the location of the proposed port terminal

TR030002-000738-York Potash Limited 3.pdf:8: regime would not alter the present frequency of or methodology for maintenance dredging

TR030002-000738-York Potash Limited 3.pdf:9:  Cefas Guideline Action Levels for the disposal of dredged material; and,

TR030002-000738-York Potash Limited 3.pdf:9:  re-suspension of sediment during capital dredging and piling;

TR030002-000738-York Potash Limited 3.pdf:9:  reduced water quality due to placement of dredged material within Bran Sands lagoon (as

TR030002-000738-York Potash Limited 3.pdf:9: be dredged during the construction phase is contaminated. In order to prevent the dispersion

TR030002-000738-York Potash Limited 3.pdf:9: of this material during capital dredging, the use of an enclosed grab is proposed.

TR030002-000738-York Potash Limited 3.pdf:9: and water quality during dredging:

TR030002-000738-York Potash Limited 3.pdf:10:  limiting re-suspension of sediment during trailing suction hopper dredging can be achieved

TR030002-000738-York Potash Limited 3.pdf:10:  reduction of sediment plumes during backhoe dredging can be achieved by using an

TR030002-000738-York Potash Limited 3.pdf:10:  resuspension of sediment during cutter suction dredging can be reduced through

TR030002-000738-York Potash Limited 3.pdf:10: sediment during placement of dredged material required to construct the habitat

TR030002-000738-York Potash Limited 3.pdf:11: habitat due to quay construction and capital dredging, and underwater noise and vibration

TR030002-000738-York Potash Limited 3.pdf:11: construction of the port terminal and capital dredging. Harbour seal is the most sensitive seal

TR030002-000738-York Potash Limited 3.pdf:14:  release of sediments during piling and capital dredging; and,

TR030002-000738-York Potash Limited 3.pdf:15: maintenance dredging.

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:6: the York Potash Project (YPP). There are proposed dredging works as part of the construction of the

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:6: Harbour Facilities (see section 1.2 below). The layers of sediment to be dredged include contaminated

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:7:1.2.3 Capital dredging of the berth pocket (and approaches to the pocket) would be required in order to allow

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:7: the maximum design vessels proposed access to the port terminal. This dredging would be undertaken

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:7:1.2.4 In the downstream section of the proposed dredge area, existing borehole logs indicate that the

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:7: required dredging would be entirely within the silts, sands, gravels and clays. In the upstream section,

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:7: the dredging would generally require the removal of bedrock (marl). Consequently, the majority of the

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:7: Phase 1 dredging would be undertaken in the silts, sands, gravels and clays (as show in Table 1).

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:7: Table 1 Summary of capital dredged material quantities and material types for Phases 1 and 2 (open

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:7: Material type Capital dredge volume (m ) Total

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:7:1.2.5 Table 2 shows the proposed quantity of each type of dredged material for both quay options.

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:7: Table 2 Summary of dredged material volumes for the open quay and closed (reclamation) quay

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:8: outside of the proposed dredged area. The sample locations are identified in the hazardous waste

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:8: dredged area) were observed to be hazardous.

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:8:1.2.10 Approximately half of the samples taken from within the proposed dredge area exceeded the

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:8: hazardous waste thresholds; and all of the sampling points from the proposed dredged area included

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:8:1.2.11 Therefore the contaminated silt as a whole should be dealt with as a hazardous waste when dredged.

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:8:1.2.13 For Phases 1 and 2, it is proposed that dredging of the silts would be undertaken using enclosed grabs,

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:8: 181,000m3 of contaminated silt would require dredging by this method for the open quay configuration,

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:9:1.3.2 It is proposed that some of the capital dredged sands, gravels, clay and mudstone would be used as

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:10: to YPL (and / or the dredging contractor that would be commissioned by YPL to carry out the dredging

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:10:2.1.1 The contaminated silt would be considered waste when it is dredged; and would be subject to

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:10: with the person who produced the waste. This would be the dredging contractor.

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:10: the Harbour development footprint; therefore, the contaminated silt would be removed ‘as dredged’ (i.e.

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:10:2.1.3 The removal of the contaminated silt from the dredged area by barge must be by a person or company

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:10:2.1.5 Every barge movement of the contaminated silt from the dredge area must be accompanied by

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:10: would be hazardous waste when dredged. Therefore, the appropriate European Waste Catalogue

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:10: (EWC) code for it would be 17 05 05* - ‘dredging spoil containing dangerous substances’. The EWC

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:10:2.2.2 Prior to the commencement of dredging, and throughout all phases of the dredging programme, the site

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:11:2.2.3 Hazardous waste consignment notes must be prepared by (or on behalf of) the dredging contractor

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:11: before the contaminated silt is removed from the dredging area for each movement of the contaminated

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:11: transfer and must be signed by the original holder (the dredging contractor); the person who removes

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:11: the contaminated silt from the dredge area; and an authorised representative of the facility that receives

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:11:2.4.1 The contaminated silt would be too wet to be directly recovered or disposed after dredging and would

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:11: dewatering of the contaminated silt. YPL and the dredging contractor would have the responsibility for

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:12: watercourse (including the one from which the contaminated silt was dredged), unless the discharge

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:12: proposed location. It would be the responsibility of YPL and the dredging contractor to ensure that a

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:12:2.4.10 It would be the responsibility of YPL and the dredging contractor to supply all relevant information about

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:12: the contaminated silt to inform the method statement. The dredging contractor would be responsible for

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:14:2.6.7 As set out above, the contaminated silt would not be suitable for use immediately after being dredged

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:15:2.8.2 The conditions of LFT1 Section 4.1 are met for the proposed dredging programme for the proposed

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:17:3.1.1 Section 2 (and Annex 1) describe the regulatory obligations that YPL and their appointed dredging

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:17: dredging associated with the Harbour facilities on land.

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:17: fact that the material would be removed from the dredge area as dredged, i.e. wet, by barge. Therefore,

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:17: and the rate of dredging may mean that physico-chemical treatment for the purposes of recovery may

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:18: constraints that would create a risk to the dredging programme would be ruled out.

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:19:4.1.3 The waste duty of care starts with the person who produces the waste. This will be the dredging

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:20: dredged sediment:

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:20:  ‘17 05 05* dredging spoil containing dangerous substances.’

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:20:  ‘17 05 06 dredging spoil other than those mentioned in 17 05 05*’.

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:20: classified as hazardous waste when dredged. Therefore, this must be taken into account for any

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:20: development site must be registered throughout both phases of dredging the contaminated silt. A

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:20:4.2.5 The contaminated silt would be removed from the dredge area by barge to another site for storage,

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:20: treatment, recovery or disposal directly after dredging. The HWR require that every single movement of

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:21:4.2.6 It is the responsibility of the holder of the waste silt (i.e. the dredging contractor) to complete the

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:22:4.3.3 The creation of the dredged contaminated silt cannot be prevented, because has to be removed as a

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:23: unfeasible (e.g. the rate of treatment could not match the rate of dredging, which would give rise to

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:24: from which the silt was dredged, or any other watercourse, unless the discharge complies with the

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:25: contaminated silt from inland waters13. This is ‘D1 Deposit of waste from dredging of inland waters’.

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:25: that authorises the receipt of hazardous dredged contaminated silt for treatment whether it is carried

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:26:4.7.5 It would be the responsibility of the holder of the contaminated silt (i.e. the Dredging Contractor) to

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:26:4.7.7 It would be the responsibility of YPL and the Dredging Contractor to supply all relevant information

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:26: that the treated dredged material must meet to allow it to be used as engineering fill at the chosen site.

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:29: Therefore, a bespoke permit would be required to use the dredged contaminated silt as waste in a

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:29: configuration), it would be the responsibility of YPL and the Dredging Contractor to ensure that the site

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:30:4.9.1 The Environment Agency has a view that excavated contaminated silt is waste when it is dredged.

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:30: the dredging contractor would be responsible for ensuring that the use of the CoP would be valid prior

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:31:4.9.14 In this case, the contaminated silt would not be suitable for use immediately after being dredged

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:35:4.10.18 Waste removed from inland waterways and harbours by dredging that is disposed to landfill may qualify

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:35: banks of canals and rivers) and has been dredged from:

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:36: identifies that naturally occurring dredged material qualifies for the lower rate of landfill tax (currently

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:36: £2.60/tonne for 2015/2016), by virtue of being in Group 1 ‘Rocks and Soils’ (Note: (n) dredgings). This

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:36: example for dredging spoil and states that “However, dredging spoil can contain other materials such

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:36:4.10.22 The paragraph above implies that dredged material that is classified as hazardous waste would not

TR030002-000730-Applicant response to First Questions - Appendix 5.pdf:36: exemption are met for the proposed YPL harbour development dredging operation.

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:10:• Dredging – allowing sufficient berth depth

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:14:AND DREDGING

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:14: DCO APPLICATION BOUNDARY DREDGING ENVELOPES CONVEYOR OPTIONS QUAY

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:14:CONSTRUCTION DREDGING

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:14:construct the proposed harbour facilities it would be necessary to dredge an area of

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:14: Dredging involves the removal of a layer of

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:14: dredging process would be removed from

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:14: Most dredging would be carried out as

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:18:Dredging

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:18:9. What is your view on the proposed dredging required as part of the harbour facilities?

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:18: don’t know dredging impact

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:39: reduction through loss of fluvial sediments from dredging) should also be considered in this section (10.4.8). Construction of

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:39: the beneficial use of dredgings from the capital dredge as suggested in 3.4.12 for habitat creation in the Tees Estuary. This

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:39: Is this the amount of material that will need to be maintenance dredged from the proposed YPL dredge footprint per year? If

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:39: been destined for Bran Sands or Seal Sands? NE would expect to see a full assessment of the impacts due to dredging in

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:41: • Dredging; and

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:41: • Disposal of dredged material.

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:41: Paragraph 5.5.4, the use of a trailer suction hopper dredger/cutter suction dredger is a worst case scenario over the

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:41: backhoe dredger. The MMO would expect the full details of the sediment plume modelling to be included in the final ES i.e.

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:41: The MMO welcome the inclusion to assess potential alternative options for the use of dredged material once these results

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:42: 5.9 Dredged material - The MMO welcomes the inclusion of the current maintenance dredge operations and requirements

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:42: and note that in Chart 9, there will be an increase of approximately 8,000m3 per year to be dredged. It would be useful to

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:42: sedimentation (and therefore increased maintenance dredging) or increased erosion within the final ES. The MMO would

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:42: also expect the ES to assess the cumulative impacts of the capital dredge and disposal with other dredge and disposal

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:42: The applicant has stated that if no alternative uses for the dredged material can be found then all of the dredged material will

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:42: If alternative uses for the dredged material have been identified for the submission of the ES, it would be useful to see the

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:42: The applicant has noted that there is likely to be a requirement for periodic maintenance dredging within the berth pocket

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:42: include maintenance dredging within the Deemed Marine Licence. The applicant should be aware that depending on the

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:42: The MMO note that the maintenance dredging requirement would be included within the PD Teesport wider maintenance

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:42: dredge campaigns (paragraph 7.6.4), the MMO would recommend consultation with the harbour authority to ensure future

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:42: the modelling as referenced in section 5.8, dredged material, of this document.

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:43: Dredging: Sediment contamination test results should be made available at the earliest opportunity to allow for consideration

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:43: of the options for the fate of the dredge spoil. Dredger type and timing of dredging should be discussed to allow for the

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:43: at assessing the potential impacts of dredging and disposal. The large majority of the proposed site is situated on land

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:44: archaeological/palaeoenvironmental material recovered in the course of the dredging activities related to the project (c.f

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:46: Structures, Dredging and the Use of the Quay – It is noted that dredging of an area of the estuary is necessary to

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:46: bed (both through dredging and/ or the scouring effect of ships propellers when manoeuvring in proximity to the Quay) will

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:49: Breagh Pipeline is protected particularly during any dredging which will be undertaken.

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:56: • Dredging of the harbour area for both Phase 1 & 2;

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:57:001-02 Moors National and polyhalite storage bins, dredging of the berthing area, construction of a conveyor system linking the York Potash

TR030002-000673-Doc 6.1 Consultation Statement Appendices - 22 to 31.pdf:97:11. What is your view on the proposed dredging required as part of the harbour facilities?

TR030002-001875-The York Potash Harbour Facilities Draft Amendment Order Final Validated (1).pdf:2: © dredging of up to 750,000 cubic metres of material from the approach channel and

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:2: damage to buried features from disposal of dredged material should be taken into account. The

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:3: dredging footprint, however, is within the area covered by SBC. The adopted Local Plan (1997)

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:4: x Marine Aggregate Dredging and the Historic Environment: Guidance note (BMAPA, English

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:5:The Scoping Report acknowledges that the berth pocket dredging would take Section 15.6 and 15.9

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:5:place in a location that is not subject to regular dredging and therefore there is

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:5:dredging.

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:5:protocol to mitigate potential archaeological effects arising from dredging. The

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:6:dredging activities related to the project. (c.f Crown Estates: Protocol for

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:6: during the course of dredging activities.

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:12: a former land surface in previously undredged areas. However, data from a later geotechnical borehole

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:24: which may also contain preserved archaeological remains. This is most relevant to the capital dredging

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:25: present, dredging within the approach channel and berth pocket has the potential to have a medium or

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:25: the potential impact on any as yet unidentified marine archaeological remains arising from dredging

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:25: Investigation (WSI) to specifically cover dredging activity, which would be produced by a suitably

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:25: enclosed grab is proposed to dredge the fine sediments overlying the geological deposits. This would

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:25: unexpected obstructions encountered during dredging would be reported if discovered and this fine

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:27: example, maintenance dredging activity.

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:29: a WSI for dredging and other marine related development activity, should be produced and

TR030002-000450-ES Section 15 Archaeology and heritage.pdf:30:the dredge footprint within the DCO application boundary).

TR030002-000492-Section 13 App 13.1 Air quality assessment methodology.pdf:9:1.4.3 Construction activities proposed include site mobilisation, demolition and site preparation, dredging,

TR030002-000712-Applicant response to First Questions - Appendix 8.pdf:10: and Ramsar site maintenance dredging and potential impacts to bird feeding and interruption of sediment flow to

TR030002-000712-Applicant response to First Questions - Appendix 8.pdf:10: Coatham Sands due to offshore disposal of maintenance dredged material).

TR030002-000712-Applicant response to First Questions - Appendix 8.pdf:11: Effects on food resources due to reduced water quality following dredging and deposition of sediment Water and

TR030002-000712-Applicant response to First Questions - Appendix 8.pdf:11: disrobed during dredging in intertidal areas. Effect on water quality in Bran Sands lagoon. sediment quality

TR030002-000410-ExA First Round Questions.pdf:17:dredging will be required as part of the development. However, the ES does not

TR030002-000410-ExA First Round Questions.pdf:20:Disposal of contaminated sediments from capital dredging

TR030002-000410-ExA First Round Questions.pdf:20:Paragraph 3.1.42 of the ES (Doc 6.4) confirms that some of the capital dredged

TR030002-000410-ExA First Round Questions.pdf:20:(Doc 6.5). The management of dredged material and contaminated excavated

TR030002-000410-ExA First Round Questions.pdf:20:More generally, how would the alternative dredging mechanisms be secured in

TR030002-000410-ExA First Round Questions.pdf:22:Securing dredging mitigation through the DML

TR030002-000410-ExA First Round Questions.pdf:22:The ES confirms that an enclosed grab dredging method would be used for the

TR030002-000410-ExA First Round Questions.pdf:22:condition to secure the use of enclosed grab dredging method to remove

TR030002-000410-ExA First Round Questions.pdf:22:cannot be used, the use of a backhoe dredger would be the least

TR030002-000410-ExA First Round Questions.pdf:22:of the MMO licence does not commit to the use of a backhoe dredger for the

TR030002-000410-ExA First Round Questions.pdf:22:remainder of the dredging (Doc 4.1). Please can the applicant comment on

TR030002-000410-ExA First Round Questions.pdf:22:the backhoe dredging in the DML where an enclosed grab cannot be used? If so,

TR030002-000410-ExA First Round Questions.pdf:22:comment from NE “Post dredging monitoring of Seal Sands should be taken

TR030002-000410-ExA First Round Questions.pdf:22:result of dredging activities. If dredging is found to be detrimental, additional

TR030002-000410-ExA First Round Questions.pdf:34:In combination assessment – maintenance dredging

TR030002-000410-ExA First Round Questions.pdf:34:(paragraph 11.2.1), include maintenance dredging within the Tees Estuary.

TR030002-000410-ExA First Round Questions.pdf:34:Table 8.7 explains that this maintenance dredging is the existing on-going

TR030002-000410-ExA First Round Questions.pdf:34:dredging, which may have an effect in combination with the capital dredging

TR030002-000410-ExA First Round Questions.pdf:35:Please can the applicant confirm whether this maintenance dredging has been

TR030002-000410-ExA First Round Questions.pdf:35:Please can the applicant also clarify what effects the maintenance dredging

TR030002-000410-ExA First Round Questions.pdf:35:have in combination with the capital dredging required for Phase 2 of the

TR030002-000410-ExA First Round Questions.pdf:35:during capital and maintenance dredging

TR030002-000410-ExA First Round Questions.pdf:36:When considering the potential for in combination effects from dredging activity

TR030002-000410-ExA First Round Questions.pdf:36:placement of dredged material in Bran Sands lagoon. However, it is not clear

TR030002-000410-ExA First Round Questions.pdf:37:relation to the lagoon, for example, additional maintenance dredged material,

TR030002-000410-ExA First Round Questions.pdf:44:loss associated with the proposed capital dredging. The applicant concludes that

TR030002-000410-ExA First Round Questions.pdf:44:Assessment confirms that the existing capital and maintenance dredging

TR030002-000410-ExA First Round Questions.pdf:44:that a capital dredging and disposal strategy would need to be agreed with the

TR030002-000410-ExA First Round Questions.pdf:44:Deadline 1 clarification on how the need to update the existing dredging strategy

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:4: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:5:“dredging” means using any device to move material (whether or not suspended in water)

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:5:“gravel” means dredged materials with a diameter of at least 2 millimetres and less than 64

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:6: © dredging of up to 750,000 cubic metres of material from the approach channel and berth

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:6: (b) dredging of up to 372,000 cubic metres of material from the approach channel and berth

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:7: “sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:7: “silt” means dredged materials with a diameter of at least 31.25 micrometres and less than

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:27: (1) dredging of approach channel and berth pocket; and

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:30: (3) If the construction of works (a) (extension of quay) and (b) (dredging) comprised in phase 2

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:34:7 1 and 9 Dredging and to obtain access for such purposes.

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:34:8 1, 2, 3, 4, 5, 6, 7a, 9 (a) Dredging;

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:35:11 1, 2, 3, 4, 5, 6, 7b, 9 (a) Dredging;

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:36:12 and 13 1, 4, 5 and 9 (a) Dredging;

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:38:1 1, 2, 4 and 9 (a) Dredging;

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:38:2, 3 1 and 9 (a) Dredging; and

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:38:6 1 and 9 Dredging and to obtain access for such purposes.

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:44:Capital dredging and disposal

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:44: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:44: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:45: Dredged material type Open quay (cubic metres) Solid quay (cubic metres)

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:45: (3) For phases 1 and 2, the dredging of the contaminated silts is to be undertaken using enclosed

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:45: (4) For phase 1 the dredging of the sands and gravels is to be undertaken using a Trailing

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:45: Suction Hopper Dredger (“TSHD”).

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:45: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) must be undertaken

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:45: using a backhoe dredger, TSHD or Cutter Suction Dredger (“CSD”). For phase 2, dredging of

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:45: sands and gravel is to be by a backhoe dredger, TSHD or CSD.

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:45: (6) The following maximum quantities of dredged material are to be disposed at Tees Bay C

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:45: (TY 150) offshore dredged material disposal sites—

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:48:Capital dredging, disposal conditions and debris

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:48: 34.—(1) The undertaker must agree a capital dredge and disposal strategy with the MMO at

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:48: (2) If any disposal or dredging activities are to take place after 1st October 2017—

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:48: months prior to that dredging or disposal activity being carried out;

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:48: validated by the MMO at least 6 weeks prior to the dredging or disposal activity being

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:48: © the dredging and disposal activity must not be carried out without the consent of the

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:48: 35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:48: 36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:49: 37. The undertaker must ensure that any man-made material is separated from the dredged

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:49:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:50:prior to demolition; and monitoring of dredging works in the harbour area in the vicinity of

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:71: (g) details of the method location and extent of any dredging, a technical assessment of the

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:71: likely effect of the dredging on the protected crossings and any mitigation measures

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:74: 15.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a pipeline

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:89: (e) commencing any dredging operation,

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:89: or dredging operation or altered drawings.

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:89: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:89: paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:89:Capital dredge and disposal Schedule 5, paragraph 34 The whole strategy

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:92: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:95: may reasonably be put in dredging the river to remove the sedimentation or in making

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:95: (b) carry out the necessary dredging at its own expense and subject to the prior approval of

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:96:any duty to dredge the approaches from the river channel to the quay, or the berthing pocket at the

TR030002-001855-Development Consent Order as made by the Secretary of State.pdf:97: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the 1966

TR030002-000752-Document 8.3 Appendix 5 - Shipping Notes Part 1.pdf:6:other known planned River Tees developments. The Assessment adopts the current dredge levels as these represent a

TR030002-000752-Document 8.3 Appendix 5 - Shipping Notes Part 1.pdf:6:window by dredging, either to the depths advertised on the admiralty charts or other more extensive works. Further work

TR030002-000752-Document 8.3 Appendix 5 - Shipping Notes Part 1.pdf:6:would identify how much dredging would be required to fully mitigate the various delays identified by the simulation.

TR030002-000752-Document 8.3 Appendix 5 - Shipping Notes Part 1.pdf:15:Location Observed Dredged Depth Margin (under keel) Effective Depth

TR030002-000752-Document 8.3 Appendix 5 - Shipping Notes Part 1.pdf:15:It has been assumed in the model that there will be dredging for the berth pockets at the new Brans Sands site along

TR030002-000752-Document 8.3 Appendix 5 - Shipping Notes Part 1.pdf:15:upper reach in Figure 2-3 below will be assumed in the model to be dredged to a useable depth of at 12.4m to match the

TR030002-000752-Document 8.3 Appendix 5 - Shipping Notes Part 1.pdf:16: Figure 2-3: Additional Dredging Assumed for Brands Sand Site

TR030002-000752-Document 8.3 Appendix 5 - Shipping Notes Part 1.pdf:16:The Seaton Channel turning area has a maximum diameter of 515m and has an effective dredged depth of 12.4m CD.

TR030002-000752-Document 8.3 Appendix 5 - Shipping Notes Part 1.pdf:16:The Tees Dock turning area is 450m in diameter and has a current effective dredged depth of 7.4m CD. Whilst a vessel

TR030002-000752-Document 8.3 Appendix 5 - Shipping Notes Part 1.pdf:23: bulk vessels with the simulated channel depths. This indicates that the dredging would be required at the turning area outside Tees

TR030002-000752-Document 8.3 Appendix 5 - Shipping Notes Part 1.pdf:23:or a conservative approach based on additional dredging of the turning area.

TR030002-000752-Document 8.3 Appendix 5 - Shipping Notes Part 1.pdf:39:Mitigation of these delays (either for Phase 1 or Phase 2 of the polyhalite exports) would principally require dredging.

TR030002-000752-Document 8.3 Appendix 5 - Shipping Notes Part 1.pdf:39:The dredged depths assumed within the model are those effective depths as discussed in section 2 of the report. If the

TR030002-000752-Document 8.3 Appendix 5 - Shipping Notes Part 1.pdf:39:Delays to polyhalite vessel movements would be reduced if the approach channel were to be dredged further to a level

TR030002-000752-Document 8.3 Appendix 5 - Shipping Notes Part 1.pdf:39:increased dredging on all the potential scenarios.

TR030002-000732-DEA UK SNS Limited (Written Representation).pdf:2: 3.2.3 The potential effect of dredging and the building of the quay on the integrity of the

TR030002-000732-DEA UK SNS Limited (Written Representation).pdf:6: 3.2.3 The potential effect of dredging and the building of the quay on the integrity of the

TR030002-000732-DEA UK SNS Limited (Written Representation).pdf:16:6.1 Dredging and Quay

TR030002-000732-DEA UK SNS Limited (Written Representation).pdf:16: 6.1.1 The Objectors are concerned about the effect of Work No. 1 (dredging) and Work No.

TR030002-000732-DEA UK SNS Limited (Written Representation).pdf:16: of the current pipeline and then that monitoring took place throughout the dredging

TR030002-000732-DEA UK SNS Limited (Written Representation).pdf:16: 6.2.1 The Objectors are also concerned about the potential effect of the dredging and the

TR030002-000732-DEA UK SNS Limited (Written Representation).pdf:16: 6.2.2 In terms of the extent of dredging, Work No. 1 is clearly very wide, covering almost the

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:6: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:6: “dredging” means using any device to move material (whether or not suspended in water) from

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:6: “gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:8: © dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:8: (b) dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:8: “sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:8: “silt” means dredged materials with a diameter of at least 31.25 and less than 62.5 micrometres;

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:29: (3) dredging of approach channel and berth pocket; and

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:34:and providing fordredging works in the identification and reportingharbour area in the vicinity of

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:36: 1 1, 2, 4 and 9 (i) dredging;

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:36: 2, 3 1 and 9 (i) dredging; and

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:36: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:36: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:37: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:38: 12 and 13 1, 4, 5, 9 and 10 (i) dredging;

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:42: 1 1, 2, 4 and 9 (i) dredging;

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:42: 2, 3 1 and 9 (i) dredging; and

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:42: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:42: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:44: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:45: 12 and 13 1, 4, 5 and 9 (i) dredging;

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:52: Capital dredging and disposal

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:52: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:52: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:52:Dredged material type Open quay (m3) Solid quay (m3)

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:52: (3) For phases 1 and 2, the dredging of the contaminated silts will be undertaken using enclosed

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:52: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing Suction

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:52:Hopper Dredger (TSHD).

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:53: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) must be undertaken

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:53:using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2, dredging of sands

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:53:and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:53: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C (TY

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:53:150)offshore dredged material disposal sites—

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:56: Capital dredging, disposal conditions and debris

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:56: 34.—(1) The undertaker must agree a capital dredge and disposal strategy with the MMO at least

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:56: (2) If any disposal or dredging activities are to take place after 1st October 2017 then—

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:56: months prior to that dredging or disposal activity being carried out;

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:56: validated by the MMO at least six weeks prior to the dredging or disposal activity being

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:56: © the dredging and disposal activity must not be carried out without the consent of the MMO.

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:56: 35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:56: 36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:56: 37. The undertaker must ensure that any man-made material is separated from the dredged

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:56:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:78: (g) details of the method location and extent of any dredging, a technical assessment of the

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:78: likely effect of the dredging on the protected crossings and any mitigation measures which

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:81: 15.—(1) (1) Where excavation of trenches (including excavation by dredging) adjacent to a

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:95: (e) commencing any dredging operation,

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:95:dredging operation or altered drawings.

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:95: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:95:paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:96:Capital dredge and disposal Schedule 5, paragraph 34 The whole strategy

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:98: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:101: may reasonably be put in dredging the river to remove the sedimentation or in making good

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:101: (b) carry out the necessary dredging at its own expense and subject to the prior approval of the

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:103:under any duty to dredge the approaches from the river channel to the quay, or the berthing pocket

TR030002-000898-160113_TR030002_Draft Development Consent Order (Tracked).pdf:103: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the Tees

TR030002-001856-Examining Authority’s Recommendation Report.pdf:7: 5.10 MARINE DREDGING AND DISPOSAL AND NAVIGATION …………………. 65

TR030002-001856-Examining Authority’s Recommendation Report.pdf:10: proposed dredging within the River Tees which is within the area of

TR030002-001856-Examining Authority’s Recommendation Report.pdf:12:1.5.3 Deposit of dredged material is governed by the Deemed Marine

TR030002-001856-Examining Authority’s Recommendation Report.pdf:12: the Examination the applicant confirmed that contaminated dredgings

TR030002-001856-Examining Authority’s Recommendation Report.pdf:15: (2) dredging of the approach channel and berth pocket;

TR030002-001856-Examining Authority’s Recommendation Report.pdf:16:2.1.8 Work No 1 consists of dredging the approach channel and berth pocket

TR030002-001856-Examining Authority’s Recommendation Report.pdf:23: MPS but simply addresses ecological, dredging and other operational

TR030002-001856-Examining Authority’s Recommendation Report.pdf:34: site or in the disposal of contaminated silt from capital dredging.

TR030002-001856-Examining Authority’s Recommendation Report.pdf:42: and flooding, marine protected areas, marine dredging and disposal,

TR030002-001856-Examining Authority’s Recommendation Report.pdf:48: dredging and piling plant and equipment and of materials and not

TR030002-001856-Examining Authority’s Recommendation Report.pdf:48: arise from the differing extent of dredging required or volumes of fill

TR030002-001856-Examining Authority’s Recommendation Report.pdf:49: dredgers from human receptors or designated ecological sites is such

TR030002-001856-Examining Authority’s Recommendation Report.pdf:51:5.3.1 In section 5.1 of the Ports NPS, it highlights that dredging associated

TR030002-001856-Examining Authority’s Recommendation Report.pdf:53: consequence of capital dredging would have a potential impact of

TR030002-001856-Examining Authority’s Recommendation Report.pdf:53: including from shipping, maintenance dredging and shoreline

TR030002-001856-Examining Authority’s Recommendation Report.pdf:53: dredging having regard to the intended mitigation is assessed as

TR030002-001856-Examining Authority’s Recommendation Report.pdf:53: consequential impact from dredging on these areas.

TR030002-001856-Examining Authority’s Recommendation Report.pdf:57: from or on coastal change including as a consequence of dredging

TR030002-001856-Examining Authority’s Recommendation Report.pdf:61: relation to underwater noise from piling, dredging and shipping

TR030002-001856-Examining Authority’s Recommendation Report.pdf:62:5.6.5 The effect on marine water quality from dredging operations was also

TR030002-001856-Examining Authority’s Recommendation Report.pdf:62: Mitigation is suggested through use of enclosed grab dredging to avoid

TR030002-001856-Examining Authority’s Recommendation Report.pdf:62: dispersal of contaminated dredgings and backhoe dredging wherever

TR030002-001856-Examining Authority’s Recommendation Report.pdf:62: timetabling of much of the dredging outside the main migratory

TR030002-001856-Examining Authority’s Recommendation Report.pdf:62: adjustments to any other means of dredging, the impact is assessed

TR030002-001856-Examining Authority’s Recommendation Report.pdf:62: food sources from dredging is regarded as of minor adverse

TR030002-001856-Examining Authority’s Recommendation Report.pdf:62: dredging, as is already undertaken within the Tees Estuary, and

TR030002-001856-Examining Authority’s Recommendation Report.pdf:64: demolished to facilitate the dredging of the berth pocket and for quay

TR030002-001856-Examining Authority’s Recommendation Report.pdf:65: construction/dredging and that there would need to be a protocol to

TR030002-001856-Examining Authority’s Recommendation Report.pdf:65: govern procedures should any wreck be encountered during dredging

TR030002-001856-Examining Authority’s Recommendation Report.pdf:69:5.10 MARINE DREDGING AND DISPOSAL AND NAVIGATION

TR030002-001856-Examining Authority’s Recommendation Report.pdf:69: dredging and the disposal of dredgings that are involved in port

TR030002-001856-Examining Authority’s Recommendation Report.pdf:69: development because dredging is enabling development. It points out

TR030002-001856-Examining Authority’s Recommendation Report.pdf:69: warning that dredging can give rise to ecological concerns,

TR030002-001856-Examining Authority’s Recommendation Report.pdf:69:5.10.2 The ES assesses the effects of the dredging involved in section 5 [APP-

TR030002-001856-Examining Authority’s Recommendation Report.pdf:70:5.10.3 The differential extents of dredging that would be required to

TR030002-001856-Examining Authority’s Recommendation Report.pdf:70: dredging for open quay construction would involve removal of

TR030002-001856-Examining Authority’s Recommendation Report.pdf:70: during phase 1, dredging would mainly be within silts, sands, gravels

TR030002-001856-Examining Authority’s Recommendation Report.pdf:70:5.10.4 Suitable non-contaminated dredged material would be used for the

TR030002-001856-Examining Authority’s Recommendation Report.pdf:70: this having been agreed with the MMO. Silt dredgings which are

TR030002-001856-Examining Authority’s Recommendation Report.pdf:70: January 2016. All aspects of the control of dredging operations are

TR030002-001856-Examining Authority’s Recommendation Report.pdf:71: from statutory or other IPs on the specific issue of dredging. Much of

TR030002-001856-Examining Authority’s Recommendation Report.pdf:71: achieved. It was agreed by the MMO that maintenance dredging did

TR030002-001856-Examining Authority’s Recommendation Report.pdf:71: dredging operations, but as this is an issue related to the Protective

TR030002-001856-Examining Authority’s Recommendation Report.pdf:71:5.10.6 Otherwise comments relating to dredging were linked to issues

TR030002-001856-Examining Authority’s Recommendation Report.pdf:72: required dredging, disposal of dredged material and navigational

TR030002-001856-Examining Authority’s Recommendation Report.pdf:72: disposal of contaminated silt dredgings, no new permits should be

TR030002-001856-Examining Authority’s Recommendation Report.pdf:73: into account. The conclusion of the studies for dredging, quay

TR030002-001856-Examining Authority’s Recommendation Report.pdf:77: area to be dredged is located, is equally strong in terms of the

TR030002-001856-Examining Authority’s Recommendation Report.pdf:78: conveyor system or potentially affected by dredging operations raised

TR030002-001856-Examining Authority’s Recommendation Report.pdf:83: landside works would not affect contaminated sediments and dredging

TR030002-001856-Examining Authority’s Recommendation Report.pdf:85:  The proposed quay construction and dredging does have the

TR030002-001856-Examining Authority’s Recommendation Report.pdf:85: controlled by design as well as conditions imposed upon dredging

TR030002-001856-Examining Authority’s Recommendation Report.pdf:85: techniques and use of an enclosed grab to dredge contaminated silts,

TR030002-001856-Examining Authority’s Recommendation Report.pdf:92: water quality due to capital dredging and piling and the potential

TR030002-001856-Examining Authority’s Recommendation Report.pdf:96: capital dredging, sediment deposition and water quality in Bran Sands

TR030002-001856-Examining Authority’s Recommendation Report.pdf:97: would be dredged using an enclosed grab (paragraph 103.39, HRA

TR030002-001856-Examining Authority’s Recommendation Report.pdf:102: dredging and navigational impacts are able to be mitigated through

TR030002-001856-Examining Authority’s Recommendation Report.pdf:106:  dredging of the berth area to form a berth pocket;

TR030002-001856-Examining Authority’s Recommendation Report.pdf:106:  dredging of the river channel to give access to the berth pocket;

TR030002-001856-Examining Authority’s Recommendation Report.pdf:107:  Class 1: Dredging and River Works (Works No 1) - surveying &

TR030002-001856-Examining Authority’s Recommendation Report.pdf:107: investigation; capital and maintenance dredging, demolition of

TR030002-001856-Examining Authority’s Recommendation Report.pdf:107: placing capital and maintenance dredged material to create

TR030002-001856-Examining Authority’s Recommendation Report.pdf:120: are required to enable capital and maintenance dredging and the

TR030002-001856-Examining Authority’s Recommendation Report.pdf:121: required to undertake capital and maintenance dredging and the

TR030002-001856-Examining Authority’s Recommendation Report.pdf:128: navigation in the Tees Estuary from dredging and use of the additional

TR030002-001856-Examining Authority’s Recommendation Report.pdf:131: problems to shipping movements should not arise during dredging or

TR030002-001856-Examining Authority’s Recommendation Report.pdf:132: that the dredging, quay construction and operation should not

TR030002-001856-Examining Authority’s Recommendation Report.pdf:133: concerns over dredging in its vicinity (Parcel 2). Their Gas pipeline

TR030002-001856-Examining Authority’s Recommendation Report.pdf:133: works and to construct the quays and dredge the berth pockets and

TR030002-001856-Examining Authority’s Recommendation Report.pdf:134:  the potential adverse effect of dredging on Tunnel No 2 and DEA

TR030002-001856-Examining Authority’s Recommendation Report.pdf:136: extent of proposed dredging was cut back so that it no longer extends

TR030002-001856-Examining Authority’s Recommendation Report.pdf:136: hearings REP3-005. The revised dredging arrangement should only

TR030002-001856-Examining Authority’s Recommendation Report.pdf:136: would be beneath the top of the dredged slope rather than a fully

TR030002-001856-Examining Authority’s Recommendation Report.pdf:136: dredged main channel by some 6%, with the depth below the new

TR030002-001856-Examining Authority’s Recommendation Report.pdf:136: approved dredging to implement the Northern Gateway Port project

TR030002-001856-Examining Authority’s Recommendation Report.pdf:137: the Northern Gateway project authorised dredging within 14.6 m of

TR030002-001856-Examining Authority’s Recommendation Report.pdf:137: Tunnel No 2 whereas the nearest dredging to the Breagh pipeline, the

TR030002-001856-Examining Authority’s Recommendation Report.pdf:137:dredging quoted in Appendix 3 of REP3-005 and the dimension in REP7-012, but both distances are well in

TR030002-001856-Examining Authority’s Recommendation Report.pdf:138: issues, in relation to the issue of dredging, I am satisfied from the

TR030002-001856-Examining Authority’s Recommendation Report.pdf:138: cross river pipelines from dredging operations as the definition of

TR030002-001856-Examining Authority’s Recommendation Report.pdf:164: introductory matters, licensed activities including dredging and the

TR030002-001856-Examining Authority’s Recommendation Report.pdf:166: peat deposits in relation to dredging as these two items would clearly

TR030002-001856-Examining Authority’s Recommendation Report.pdf:166: Mooring Bollard' prior to demolition, and monitoring of dredging works

TR030002-001856-Examining Authority’s Recommendation Report.pdf:167: dredging or construction in the estuary missed critical windows in

TR030002-001856-Examining Authority’s Recommendation Report.pdf:168: monitoring of dredging works in the harbour area in the vicinity of

TR030002-001856-Examining Authority’s Recommendation Report.pdf:195:APP-258 Section 22: Offshore Disposal of Dredged Material

TR030002-001856-Examining Authority’s Recommendation Report.pdf:203:REP3-008 York Potash Ltd - Dredging Note. Appendix 3 of Submissions from

TR030002-001856-Examining Authority’s Recommendation Report.pdf:221:“clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-001856-Examining Authority’s Recommendation Report.pdf:221:“dredging” means using any device to move material (whether or not suspended in water)

TR030002-001856-Examining Authority’s Recommendation Report.pdf:221:“gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-001856-Examining Authority’s Recommendation Report.pdf:223:© dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-001856-Examining Authority’s Recommendation Report.pdf:223:(b) dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-001856-Examining Authority’s Recommendation Report.pdf:223:“sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-001856-Examining Authority’s Recommendation Report.pdf:223:“silt” means dredged materials with a diameter of at least 31.25 and less than 62.5

TR030002-001856-Examining Authority’s Recommendation Report.pdf:244: (1) dredging of approach channel and berth pocket; and

TR030002-001856-Examining Authority’s Recommendation Report.pdf:251:1 1, 2, 4 and 9 (i) dredging;

TR030002-001856-Examining Authority’s Recommendation Report.pdf:251:2, 3 1 and 9 (i) dredging; and

TR030002-001856-Examining Authority’s Recommendation Report.pdf:251:6 and 7 1 and 9 Dredging and to obtain access for

TR030002-001856-Examining Authority’s Recommendation Report.pdf:251:8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-001856-Examining Authority’s Recommendation Report.pdf:253:11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-001856-Examining Authority’s Recommendation Report.pdf:254:12 and 13 1, 4, 5 and 9 (i) dredging;

TR030002-001856-Examining Authority’s Recommendation Report.pdf:262: Capital dredging and disposal

TR030002-001856-Examining Authority’s Recommendation Report.pdf:262: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-001856-Examining Authority’s Recommendation Report.pdf:262: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-001856-Examining Authority’s Recommendation Report.pdf:262:Dredged material type Open quay (m3) Solid quay (m3)

TR030002-001856-Examining Authority’s Recommendation Report.pdf:262: (3) For phases 1 and 2, the dredging of the contaminated silts will be undertaken using enclosed

TR030002-001856-Examining Authority’s Recommendation Report.pdf:262: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing

TR030002-001856-Examining Authority’s Recommendation Report.pdf:262: Suction Hopper Dredger (TSHD).

TR030002-001856-Examining Authority’s Recommendation Report.pdf:263: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) must be undertaken

TR030002-001856-Examining Authority’s Recommendation Report.pdf:263:using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2, dredging of sands

TR030002-001856-Examining Authority’s Recommendation Report.pdf:263:and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-001856-Examining Authority’s Recommendation Report.pdf:263: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C

TR030002-001856-Examining Authority’s Recommendation Report.pdf:263:(TY 150)offshore dredged material disposal sites—

TR030002-001856-Examining Authority’s Recommendation Report.pdf:266: Capital dredging, disposal conditions and debris

TR030002-001856-Examining Authority’s Recommendation Report.pdf:266: 34.—(1) The undertaker must agree a capital dredge and disposal strategy with the MMO at

TR030002-001856-Examining Authority’s Recommendation Report.pdf:266: (2) If any disposal or dredging activities are to take place after 1st October 2017 then—

TR030002-001856-Examining Authority’s Recommendation Report.pdf:266: six months prior to that dredging or disposal activity being carried out;

TR030002-001856-Examining Authority’s Recommendation Report.pdf:266: validated by the MMO at least six weeks prior to the dredging or disposal activity being

TR030002-001856-Examining Authority’s Recommendation Report.pdf:266: © the dredging and disposal activity must not be carried out without the consent of the

TR030002-001856-Examining Authority’s Recommendation Report.pdf:266: 35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-001856-Examining Authority’s Recommendation Report.pdf:266: 36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-001856-Examining Authority’s Recommendation Report.pdf:266: 37. The undertaker must ensure that any man-made material is separated from the dredged

TR030002-001856-Examining Authority’s Recommendation Report.pdf:266:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-001856-Examining Authority’s Recommendation Report.pdf:268:Mooring Bollard’’ prior to demolition; and monitoring of dredging works in the harbour area in

TR030002-001856-Examining Authority’s Recommendation Report.pdf:289: (g) details of the method location and extent of any dredging, a technical assessment of the

TR030002-001856-Examining Authority’s Recommendation Report.pdf:289: likely effect of the dredging on the protected crossings and any mitigation measures

TR030002-001856-Examining Authority’s Recommendation Report.pdf:292: 15.—(1) (1) Where excavation of trenches (including excavation by dredging) adjacent to a

TR030002-001856-Examining Authority’s Recommendation Report.pdf:307: (e) commencing any dredging operation,

TR030002-001856-Examining Authority’s Recommendation Report.pdf:307: or dredging operation or altered drawings.

TR030002-001856-Examining Authority’s Recommendation Report.pdf:307: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-001856-Examining Authority’s Recommendation Report.pdf:307: paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-001856-Examining Authority’s Recommendation Report.pdf:308:Capital dredge and disposal Schedule 5, paragraph 34 The whole strategy

TR030002-001856-Examining Authority’s Recommendation Report.pdf:310: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-001856-Examining Authority’s Recommendation Report.pdf:313: may reasonably be put in dredging the river to remove the sedimentation or in making

TR030002-001856-Examining Authority’s Recommendation Report.pdf:313: (b) carry out the necessary dredging at its own expense and subject to the prior approval of

TR030002-001856-Examining Authority’s Recommendation Report.pdf:315:under any duty to dredge the approaches from the river channel to the quay, or the berthing pocket

TR030002-001856-Examining Authority’s Recommendation Report.pdf:315: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the Tees

TR030002-000726-York Potash Limited (Document 6.11).pdf:6: Use of an enclosed grab to dredge the contaminated sediment (thereby minimising resuspension of

TR030002-000726-York Potash Limited (Document 6.11).pdf:7: Trailing Suction Hopper Dredger (TSHD)) are optimised with respect to each other.

TR030002-000726-York Potash Limited (Document 6.11).pdf:7: Use of an experienced operator when dredging.

TR030002-000726-York Potash Limited (Document 6.11).pdf:7: Limiting the swing of the backhoe over the water during backhoe dredging.

TR030002-000726-York Potash Limited (Document 6.11).pdf:7: head and optimising the design of the cutter head when using a Cutter Suction Dredger (CSD).

TR030002-000726-York Potash Limited (Document 6.11).pdf:8: Placement of (clean) material derived from the dredging which forms part of the proposed scheme, as

TR030002-000726-York Potash Limited (Document 6.11).pdf:8: well as maintenance dredging, within Bran Sands lagoon. These measures would include the creation

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:7: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:7: “dredging” means using any device to move material (whether or not suspended in water) from

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:7: “gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:9: © dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:9: (b) dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:9: “sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:9: “silt” means dredged materials with a diameter of at least 31.25 and less than 62.5 micrometres;

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:30: (3) dredging of approach channel and berth pocket; and

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:37: 1 1, 2, 4 and 9 (i) dredging;

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:37: 2, 3 1 and 9 (i) dredging; and

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:37: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:37: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:38: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:39: 12 and 13 1, 4, 5, 9 and 10 (i) dredging;

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:43: 1 1, 2, 4 and 9 (i) dredging;

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:43: 2, 3 1 and 9 (i) dredging; and

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:43: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:43: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:45: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:46: 12 and 13 1, 4, 5 and 9 (i) dredging;

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:53: Capital dredging and disposal

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:53: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:53: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:53:Dredged material type Open quay (m3) Solid quay (m3)

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:53: (3) For phases 1 and 2, the dredging of the contaminated silts will be undertaken using enclosed

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:53: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing Suction

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:53:Hopper Dredger (TSHD).

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:54: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) must be undertaken

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:54:using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2, dredging of sands

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:54:and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:54: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C (TY

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:54:150)offshore dredged material disposal sites—

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:57: Capital dredging, disposal conditions and debris

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:57: 34.—(1) The undertaker must agree a capital dredge and disposal strategy with the MMO at least

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:57: (2) If any disposal or dredging activities are to take place after 1st October 2017 then—

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:57: months prior to that dredging or disposal activity being carried out;

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:57: validated by the MMO at least six weeks prior to the dredging or disposal activity being

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:57: © the dredging and disposal activity must not be carried out without the consent of the MMO.

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:57: 35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:57: 36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:57: 37. The undertaker must ensure that any man-made material is separated from the dredged

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:57:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:78: © in relation to works other than dredging any part of the authorised development—

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:78: (d) in relation to dredging any part of the authorised development which—

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:79: (g) details of the method location and extent of any dredging, ana technical assessment of the

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:79: likely effect of the dredging on the protected crossings and any mitigation measures which

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:82: 13.15.—(1) (1) Where excavation of trenches (including excavation by dredging) adjacent to a

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:97: (e) commencing any dredging operation,

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:97:dredging operation or altered drawings.

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:97: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:97:paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:98:Capital dredge and disposal Schedule 5, paragraph 3534 The whole strategy

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:100: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:103: may reasonably be put in dredging the river to remove the sedimentation or in making good

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:103: (b) carry out the necessary dredging at its own expense and subject to the prior approval of the

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:105:under any duty to dredge the approaches from the river channel to the quay, or the berthing pocket

TR030002-000854-York Potash Limited - Document 4.1D - Draft Development Consent Order (Tracked).pdf:105: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the Tees

TR030002-000693-151120 TR030002 Tata Steel - covering email.pdf:12: (b) in relation to dredging any part of the authorised development which

TR030002-000693-151120 TR030002 Tata Steel - covering email.pdf:14: (g) details of the method location and extent of any dredging, an technical assessment of

TR030002-000693-151120 TR030002 Tata Steel - covering email.pdf:14: the likely effect of the dredging on the protected crossings and any mitigation

TR030002-000693-151120 TR030002 Tata Steel - covering email.pdf:17:13.14. (1) Where excavation of trenches (including excavation by dredging) adjacent to a

TR030002-000714-Marine Management Organisation.pdf:9:HWF The EA, local Disposal of contaminated MMO note the methods for dredging already expressed in the DML for the prevention of release of

TR030002-000714-Marine Management Organisation.pdf:9:1.3 planning sediments from capital dredging contaminants.

TR030002-000714-Marine Management Organisation.pdf:9: Organisation capital dredged material would be MMO has discussed with the applicant the need for a condition detailing that only material from the

TR030002-000714-Marine Management Organisation.pdf:9: The management of dredged

TR030002-000714-Marine Management Organisation.pdf:10:alternative dredging mechanisms

TR030002-000714-Marine Management Organisation.pdf:11: capital/maintenance dredging. The MMO still await clarification on this point.

TR030002-000714-Marine Management Organisation.pdf:11: that limit their dredging strategy. An additional quantity of material is likely to

TR030002-000714-Marine Management Organisation.pdf:11: approval for dredging is secured under this marine licence and is secured

TR030002-000714-Marine Management Organisation.pdf:11: dredging. Furthermore, the assessment of the potential behavioural

TR030002-000714-Marine Management Organisation.pdf:11: responses of fish to dredging is inadequate. The report simply states (section

TR030002-000714-Marine Management Organisation.pdf:11: 6.2 on page 26) that ‘the source levels for the noise from dredging operations,

TR030002-000714-Marine Management Organisation.pdf:12: using a backhoe dredger was estimated to be 165 dB re 1 μPa @ 1 m

TR030002-000714-Marine Management Organisation.pdf:12: (SPLRMS) and for a suction dredger was estimated to be 183 dB re 1 μPa @

TR030002-000714-Marine Management Organisation.pdf:12: above in relation to impact piling’. The MMO expect that dredging will have

TR030002-000018-Examination Library (3).pdf:15:APP-258 Section 22: Offshore Disposal of Dredged Material

TR030002-000018-Examination Library (3).pdf:23:REP3-008 York Potash Ltd - Dredging Note. Appendix 3 of Submissions from

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:7: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:7: “dredging” means using any device to move material (whether or not suspended in water) from

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:7: “gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:9: © dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:9: (b) dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:9: “sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:9: “silt” means dredged materials with a diameter of at least 31.25 and less than 62.5 micrometres;

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:30: (3) dredging of approach channel and berth pocket; and

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:37: 1 1, 2, 4 and 9 (i) dredging;

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:37: 2, 3 1 and 9 (i) dredging; and

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:37: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:37: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:38: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:39: 12 and 13 1, 4, 5, 9 and 10 (i) dredging;

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:43: 1 1, 2, 4 and 9 (i) dredging;

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:43: 2, 3 1 and 9 (i) dredging; and

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:43: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:43: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:45: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:46: 12 and 13 1, 4, 5 and 9 (i) dredging;

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:53: Capital dredging and disposal

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:53: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:53: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:53:Dredged material type Open quay (m3) Solid quay (m3)

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:53: (3) For phases 1 and 2, the dredging of the contaminated silts will be undertaken using enclosed

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:53: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing Suction

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:53:Hopper Dredger (TSHD).

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:54: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) must be undertaken

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:54:using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2, dredging of sands

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:54:and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:54: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C (TY

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:54:150)offshore dredged material disposal sites—

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:57: Capital dredging, disposal conditions and debris

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:57: 34.—(1) The undertaker must agree a capital dredge and disposal strategy with the MMO at least

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:57: (2) If any disposal or dredging activities are to take place after 1st October 2017 then—

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:57: months prior to that dredging or disposal activity being carried out;

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:57: validated by the MMO at least six weeks prior to the dredging or disposal activity being

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:57: © the dredging and disposal activity must not be carried out without the consent of the MMO.

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:57: 35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:57: 36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:57: 37. The undertaker must ensure that any man-made material is separated from the dredged

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:57:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:79: (g) details of the method location and extent of any dredging, a technical assessment of the

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:79: likely effect of the dredging on the protected crossings and any mitigation measures which

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:82: 15.—(1) (1) Where excavation of trenches (including excavation by dredging) adjacent to a

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:96: (e) commencing any dredging operation,

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:96:dredging operation or altered drawings.

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:96: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:96:paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:97:Capital dredge and disposal Schedule 5, paragraph 34 The whole strategy

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:99: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:102: may reasonably be put in dredging the river to remove the sedimentation or in making good

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:102: (b) carry out the necessary dredging at its own expense and subject to the prior approval of the

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:104:under any duty to dredge the approaches from the river channel to the quay, or the berthing pocket

TR030002-000863-York Potash Limited - Document 4.1D - Draft Development Consent Order (Clean).pdf:104: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the Tees

TR030002-000893-160113 TR030002 MMO.pdf:1: prior to demolition; and, monitoring of dredging works in the harbour area in

TR030002-000711-Applicants Response to First Questions.pdf:31: and marine water quality (due to phased capital dredging

TR030002-000711-Applicants Response to First Questions.pdf:38: lagoon enhancement works are required implemented in parallel with the capital dredging works to

TR030002-000711-Applicants Response to First Questions.pdf:54: 6.4) confirms that maintenance dredging details of this cannot be defined at this stage however, the

TR030002-000711-Applicants Response to First Questions.pdf:62: Environment capital dredging

TR030002-000711-Applicants Response to First Questions.pdf:62: planning confirms that some of the capital dredged Requirements to provide that a waste management

TR030002-000711-Applicants Response to First Questions.pdf:63: (Doc 6.5). The management of dredged 6.5)). The information provided as Appendix 3.1 of the

TR030002-000711-Applicants Response to First Questions.pdf:63: be agreed in advance with the relevant management of contaminated dredged sediments and

TR030002-000711-Applicants Response to First Questions.pdf:64: dredging mechanisms be secured in the With regard to alternative dredging mechanisms, it is

TR030002-000711-Applicants Response to First Questions.pdf:64: options are referred to. approaches that may be proposed by a dredging

TR030002-000711-Applicants Response to First Questions.pdf:64: capital dredging using the different dredger options

TR030002-000711-Applicants Response to First Questions.pdf:66: Deadline 1. dredging operations. As such there is no direct calibration

TR030002-000711-Applicants Response to First Questions.pdf:66: modelling simulations and assessment of model and how that might differ from the actual dredger

TR030002-000711-Applicants Response to First Questions.pdf:67:HWF 1.8 Applicant Securing dredging mitigation through the

TR030002-000711-Applicants Response to First Questions.pdf:67: dredging method would be used for the (DML) which is corrected in the revised Governance

TR030002-000711-Applicants Response to First Questions.pdf:67: deposits (ES paragraphs 7.5.4. and relevant control over the dredging method.

TR030002-000711-Applicants Response to First Questions.pdf:68: secure the use of enclosed grab dredging

TR030002-000711-Applicants Response to First Questions.pdf:68: confirms that where an enclosed grab dredger types referred to would not result in unacceptable

TR030002-000711-Applicants Response to First Questions.pdf:68: dredger would be the least fisheries and, therefore, there is no requirement to specify

TR030002-000711-Applicants Response to First Questions.pdf:68: environmentally damaging in comparison the use of particular dredging plant (with the exception of

TR030002-000711-Applicants Response to First Questions.pdf:68: the MMO licence does not commit to the important to retain flexibility in the choice of dredging

TR030002-000711-Applicants Response to First Questions.pdf:68: use of a backhoe dredger for the plant.

TR030002-000711-Applicants Response to First Questions.pdf:68: remainder of the dredging (Doc 4.1).

TR030002-000711-Applicants Response to First Questions.pdf:69: backhoe dredging in the DML where an

TR030002-000711-Applicants Response to First Questions.pdf:69: “Post dredging monitoring of Seal Sands

TR030002-000711-Applicants Response to First Questions.pdf:70: deposits as a result of dredging activities.

TR030002-000711-Applicants Response to First Questions.pdf:70: If dredging is found to be detrimental,

TR030002-000711-Applicants Response to First Questions.pdf:70: whether it is intended to conduct this in deposition of sediment from capital dredging on Seal

TR030002-000711-Applicants Response to First Questions.pdf:70: (Doc 6.4) or the draft DCO (Doc 4.1) that quality sampling (and potentially post-dredging

TR030002-000711-Applicants Response to First Questions.pdf:70: and DML. the current proposed capital dredging would affect Seal

TR030002-000711-Applicants Response to First Questions.pdf:70: Sands as no capital dredging would occur in the lower

TR030002-000711-Applicants Response to First Questions.pdf:70: Terminal EIA (which included capital dredging closer to

TR030002-000711-Applicants Response to First Questions.pdf:75: have been identified and assessed in the capital dredging would have an impact on biodiversity that

TR030002-000711-Applicants Response to First Questions.pdf:104: maintenance dredging

TR030002-000711-Applicants Response to First Questions.pdf:104: the in combination assessment on the dredging on the depth of the navigation channel and

TR030002-000711-Applicants Response to First Questions.pdf:105: (paragraph 11.2.1), include maintenance effect of maintenance dredging on sediment budget of the

TR030002-000711-Applicants Response to First Questions.pdf:105: dredging within the Tees Estuary. Table Tees).

TR030002-000711-Applicants Response to First Questions.pdf:105: dredging is the existing on-going dredging, In the HRA, the assessment also considers the short-term

TR030002-000711-Applicants Response to First Questions.pdf:105: which may have an effect in combination effect of maintenance dredging on water quality (i.e.

TR030002-000711-Applicants Response to First Questions.pdf:105: with the capital dredging required for the sediment resuspension during the dredging activity) and

TR030002-000711-Applicants Response to First Questions.pdf:105: during maintenance dredging and capital dredging for the

TR030002-000711-Applicants Response to First Questions.pdf:105: this maintenance dredging has been

TR030002-000711-Applicants Response to First Questions.pdf:105: combination assessment? maintained during capital dredging for Phase 2 because

TR030002-000711-Applicants Response to First Questions.pdf:105: dredging would deposited adjacent to the dredge area,

TR030002-000711-Applicants Response to First Questions.pdf:105: effects the maintenance dredging required ineffective. Nevertheless, should maintenance and

TR030002-000711-Applicants Response to First Questions.pdf:105: to maintain the berth created during capital dredging be undertaken simultaneously, the

TR030002-000711-Applicants Response to First Questions.pdf:105: combination with the capital dredging suspended during maintenance would be within the

TR030002-000711-Applicants Response to First Questions.pdf:105: dredging.

TR030002-000711-Applicants Response to First Questions.pdf:107: during capital and maintenance dredging

TR030002-000711-Applicants Response to First Questions.pdf:107: combination effects from dredging activity

TR030002-000711-Applicants Response to First Questions.pdf:111: dredged material in Bran Sands lagoon.

TR030002-000711-Applicants Response to First Questions.pdf:113:1.12 any potential maintenance works in additional maintenance dredged material is one potential

TR030002-000711-Applicants Response to First Questions.pdf:113: additional maintenance dredged material, (Appendix 3.1 to Document 6.3).

TR030002-000711-Applicants Response to First Questions.pdf:131: dredging. The applicant concludes that the

TR030002-000711-Applicants Response to First Questions.pdf:131: In respect to the Tees water body, The existing dredging strategy referred to in Paragraph

TR030002-000711-Applicants Response to First Questions.pdf:131: capital and maintenance dredging strategy identifies as being one of the mitigation measures in place

TR030002-000711-Applicants Response to First Questions.pdf:132: capital dredging and disposal strategy Applicant is responsible for updating and, therefore,

TR030002-000711-Applicants Response to First Questions.pdf:132: existing dredging strategy is secured in reported by the Environment agency in the River Basin

TR030002-000711-Applicants Response to First Questions.pdf:132: DML would be compatible with this. The capital dredging and disposal strategy referred to in

TR030002-000711-Applicants Response to First Questions.pdf:132: is envisaged to be a method statement for the dredging

TR030002-000562-Doc 6.2 Section 79(1) of Environmental Protection Act 1990 Statement.pdf:5: 1.2.2 Dredging of the approach channel and berth area;

TR030002-000775-York Potash Ltd (7).pdf:1: CLARIFICATION ON DREDGING

TR030002-000775-York Potash Ltd (7).pdf:1: 1) Does the extent of dredging alter depending on the form of quay construction?; and

TR030002-000775-York Potash Ltd (7).pdf:1: 2) What is the relationship between the extent of dredging and the Breagh gas pipeline?

TR030002-000775-York Potash Ltd (7).pdf:1:3. In response to query 1) the Applicant confirms that the extent of dredging riverward of the

TR030002-000775-York Potash Ltd (7).pdf:1: the DCO hearing the Applicant confirms there is a difference in the extent of dredging to

TR030002-000775-York Potash Ltd (7).pdf:1: the rear of the quay frontage; the open structure will require more dredging in this locality.

TR030002-000775-York Potash Ltd (7).pdf:1: margins of the dredging footprint – passing under the top of the dredged slope rather than

TR030002-000775-York Potash Ltd (7).pdf:1: the depth of the main channel dredge. This is illustrated specifically in Figure 2 of Technical

TR030002-000775-York Potash Ltd (7).pdf:1: - 40mCD with the riverbed at -10.4mCD). With the dredging proposed in the DCO the

TR030002-000775-York Potash Ltd (7).pdf:1:5. The proposed dredge level for the Northern Gateway project which is already permitted

TR030002-000775-York Potash Ltd (7).pdf:1: Northern Gateway dredged level will reduce the distance between the riverbed and the

TR030002-000741-Huntsman Polyurethanes (IK) Limited (2).pdf:3: 3.2.3 The potential effect of dredging and the building of the quay on the integrity of the

TR030002-000741-Huntsman Polyurethanes (IK) Limited (2).pdf:13:6.1 Dredging and Quay

TR030002-000741-Huntsman Polyurethanes (IK) Limited (2).pdf:13: 6.1.1 The Objectors are concerned about the effect of Work No. 1 (dredging) and Work No.

TR030002-000741-Huntsman Polyurethanes (IK) Limited (2).pdf:13: of the current pipeline and then that monitoring took place throughout the dredging

TR030002-000741-Huntsman Polyurethanes (IK) Limited (2).pdf:13: 6.2.1 The Objectors are also concerned about the potential effect of the dredging and the

TR030002-000741-Huntsman Polyurethanes (IK) Limited (2).pdf:13: 6.2.2 In terms of the extent of dredging, Work No. 1 is clearly very wide, covering almost the

TR030002-000741-Huntsman Polyurethanes (IK) Limited (2).pdf:102: 3.2.3 The potential effect of dredging and the building of the quay on the integrity of the

TR030002-000018-Examination Library (2).pdf:15:APP-258 Section 22: Offshore Disposal of Dredged Material

TR030002-000018-Examination Library (2).pdf:23:REP3-008 York Potash Ltd - Dredging Note. Appendix 3 of Submissions from

TR030002-000662-Doc 3.9D - Indicative Elevation Open Quay Construction.pdf:1: DREDGED

TR030002-000662-Doc 3.9D - Indicative Elevation Open Quay Construction.pdf:1: DREDGE BERTH

TR030002-000662-Doc 3.9D - Indicative Elevation Open Quay Construction.pdf:1: DREDGED

TR030002-000662-Doc 3.9D - Indicative Elevation Open Quay Construction.pdf:1: DREDGE BERTH

TR030002-000428-Doc 4.2 Explanatory Memorandum.pdf:7: ii. dredging of the approach channel and berth pocket;

TR030002-000428-Doc 4.2 Explanatory Memorandum.pdf:22: This is the dredging of the approach channel and berth pocket

TR030002-000428-Doc 4.2 Explanatory Memorandum.pdf:24:lagoon. These works will involve the placing of dredged

TR030002-000428-Doc 4.2 Explanatory Memorandum.pdf:26: • Dredging of material from the approach channel and

TR030002-000428-Doc 4.2 Explanatory Memorandum.pdf:26: • Placement of dredge material within Bran Sands Lagoon

TR030002-000428-Doc 4.2 Explanatory Memorandum.pdf:26: • Dredging of material from the approach channel and

TR030002-000498-Section 16 App 16.1 Marine navigation risk assessment.pdf:8:other known planned River Tees developments. The Assessment adopts the current dredge levels as these represent a

TR030002-000498-Section 16 App 16.1 Marine navigation risk assessment.pdf:8:window by dredging, either to the depths advertised on the admiralty charts or other more extensive works. Further work

TR030002-000498-Section 16 App 16.1 Marine navigation risk assessment.pdf:8:would identify how much dredging would be required to fully mitigate the various delays identified by the simulation.

TR030002-000498-Section 16 App 16.1 Marine navigation risk assessment.pdf:41:Mitigation of these delays (either for Phase 1 or Phase 2 of the polyhalite exports) would principally require dredging.

TR030002-000498-Section 16 App 16.1 Marine navigation risk assessment.pdf:41:The dredged depths assumed within the model are those effective depths as discussed in section 2 of the report. If the

TR030002-000498-Section 16 App 16.1 Marine navigation risk assessment.pdf:41:Delays to polyhalite vessel movements would be reduced if the approach channel were to be dredged further to a level

TR030002-000498-Section 16 App 16.1 Marine navigation risk assessment.pdf:41:increased dredging on all the potential scenarios.

TR030002-000253-Regulation 24 Transboundary Screening document (3).pdf:1: o quay (including dredging)

TR030002-000253-Regulation 24 Transboundary Screening document (3).pdf:2: • Able UK Seaton port (and capital dredging of Seaton

TR030002-000253-Regulation 24 Transboundary Screening document (3).pdf:2: proposed development includes dredging works in the approach

TR030002-000253-Regulation 24 Transboundary Screening document (3).pdf:2: what use will be made of the dredged material, but options

TR030002-000253-Regulation 24 Transboundary Screening document (3).pdf:3: The Scoping Report confirms that the dredging works have the

TR030002-000253-Regulation 24 Transboundary Screening document (3).pdf:3: dredging works.

TR030002-000253-Regulation 24 Transboundary Screening document (3).pdf:3: by the piling and dredging works, but has not identified any

TR030002-000253-Regulation 24 Transboundary Screening document (3).pdf:4: • offshore disposal of dredged material.

TR030002-000253-Regulation 24 Transboundary Screening document (3).pdf:5:application. The extent of the dredging works is now limited to the immediate approach

TR030002-000253-Regulation 24 Transboundary Screening document (3).pdf:5:Offshore disposal of dredged material

TR030002-000253-Regulation 24 Transboundary Screening document (3).pdf:5:The ES includes an assessment of the potential effects of offshore disposal of dredged

TR030002-000253-Regulation 24 Transboundary Screening document (3).pdf:5:material arising from capital dredging (ES Section 22: Offshore disposal of dredged

TR030002-000253-Regulation 24 Transboundary Screening document (3).pdf:5:In relation to commercial navigation, the numbers of dredging vessels transiting through

TR030002-000253-Regulation 24 Transboundary Screening document (3).pdf:5:dredged material.

TR030002-000451-ES Section 16 Commercial navigation.pdf:2: The proposed channel dredge should cover the full width of Dredged quantities proposed for the proposed scheme

TR030002-000451-ES Section 16 Commercial navigation.pdf:2: the navigation channel. Dredged quantities should be updated are presented in Section 3. The dredging proposed

TR030002-000451-ES Section 16 Commercial navigation.pdf:3: Location Current Dredged Margin (under keel Effective Depth

TR030002-000451-ES Section 16 Commercial navigation.pdf:4: Location Current Dredged Margin (under keel Effective Depth

TR030002-000451-ES Section 16 Commercial navigation.pdf:6: (including dredging and piling vessels) and existing commercial vessels operating within the Tees

TR030002-000451-ES Section 16 Commercial navigation.pdf:7: Channel - Dredged Depths near Harbour Facilities

TR030002-000451-ES Section 16 Commercial navigation.pdf:9: the form of delays to vessel movements or increased collision risk within the estuary. Piling and dredge

TR030002-000451-ES Section 16 Commercial navigation.pdf:9: terminal during Phase 1 (outside of the approach channel), with only localised dredging required in the

TR030002-000451-ES Section 16 Commercial navigation.pdf:9: main channel during Phase 1. Such localised dredging within the approach channel would result in

TR030002-000451-ES Section 16 Commercial navigation.pdf:9: temporary disturbance to existing users for the duration of dredging (approximately 7 weeks).

TR030002-000451-ES Section 16 Commercial navigation.pdf:9: upon existing navigational practices as the main dredge and construction vessels would be located

TR030002-000451-ES Section 16 Commercial navigation.pdf:9:16.5.4 During Phase 2 of the proposed scheme, there would be a requirement for capital dredging within a

TR030002-000451-ES Section 16 Commercial navigation.pdf:9: section of the approach channel, as well as capital dredging to extend the berth pocket created during

TR030002-000451-ES Section 16 Commercial navigation.pdf:9: Phase 1. The dredging within the approach channel to be undertaken during Phase 2 of the proposed

TR030002-000451-ES Section 16 Commercial navigation.pdf:9: undertaken by other operators along the banks of the estuary. As for Phase 1 dredging of the

TR030002-000451-ES Section 16 Commercial navigation.pdf:9: 2 dredging works (approximately 6 weeks) for both of the quay construction options within a localised

TR030002-000451-ES Section 16 Commercial navigation.pdf:9:16.5.5 PD Teesport would manage any potential conflicts in the same way as routine dredging and other

TR030002-000451-ES Section 16 Commercial navigation.pdf:9: construction activities, through co-ordination via the Harbour Master. Management of dredging

TR030002-000747-Marine Management Organisation.pdf:3:HWF Applicant Securing dredging mitigation through the MMO are content with the applicant’s response. The dredging plant for the

TR030002-000747-Marine Management Organisation.pdf:3: Management dredging method would be used for the condition in the DML.

TR030002-000747-Marine Management Organisation.pdf:4: dredging method to remove contaminated

TR030002-000747-Marine Management Organisation.pdf:4: dredger would be the least environmentally

TR030002-000747-Marine Management Organisation.pdf:4: not commit to the use of a backhoe dredger

TR030002-000747-Marine Management Organisation.pdf:4: for the remainder of the dredging (Doc 4.1).

TR030002-000747-Marine Management Organisation.pdf:4: backhoe dredging in the DML where an

TR030002-000449-ES Section 14 Noise and vibration.pdf:6:The applicant should include a detailed assessment on the noise and vibration impacts from piling and dredging Sections 14.5 and 1

TR030002-000449-ES Section 14 Noise and vibration.pdf:6:during both construction and operation. This should include the dredging operations. impacts to marine re

TR030002-000449-ES Section 14 Noise and vibration.pdf:11: x certain construction activities, i.e. dredging, may take place over a 24 hour period;

TR030002-000449-ES Section 14 Noise and vibration.pdf:11: dredging and compressors which were assumed to operate 100% of the time.

TR030002-000449-ES Section 14 Noise and vibration.pdf:11: Capital dredging of Dredging Ship 1 77 100

TR030002-000449-ES Section 14 Noise and vibration.pdf:25:Capital dredging of berthing P6 50 LAeq,12hr 31 LAeq,12hr No impact

TR030002-000449-ES Section 14 Noise and vibration.pdf:25:Capital dredging of berthing

TR030002-000449-ES Section 14 Noise and vibration.pdf:28:Capital dredging of berthing P6 50 LAeq,12hr 31 LAeq,12hr No impact

TR030002-000449-ES Section 14 Noise and vibration.pdf:28:Capital dredging of berthing

TR030002-000449-ES Section 14 Noise and vibration.pdf:31:Figure 14-5 Noise contour plot of quay construction – Stage 3 (Dredge Area 1)

TR030002-000449-ES Section 14 Noise and vibration.pdf:31:Figure 14-6 Noise contour plot of quay construction – Stage 3 (Dredge Area 2)

TR030002-000449-ES Section 14 Noise and vibration.pdf:58:Port (capital dredging less sensitive times of the day where possible;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:6: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:6: “dredging” means using any device to move material (whether or not suspended in water) from

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:6: “gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:8: © dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:8: (b) dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:8: “sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:8: “silt” means dredged materials with a diameter of at least 31.25 and less than 62.5 micrometres;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:29: (3) dredging of approach channel and berth pocket; and

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:36: 1 1, 2, 4 and 9 (i) Dredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:36: (i) Demolitiondredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:36: 2, 3 1 and 9 (i) Dredgingdredging; and

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:36: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:36: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (iii) Dredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:36: (i) Constructiondredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:37: 11a11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) Constructiondredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:38: 1111a 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (iv) Dredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:39: 12 and 13 1, 4, 5, 9 and 10 (viii) Dredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:39: (i) Demolitiondredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:43: 1 1, 2, 4 and 9 (vi) Dredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:43: (i) Demolitiondredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:43: 2, 3 1 and 9 (i) Dredgingdredging; and

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:43: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:43: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (iii) Dredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:43: (i) Constructiondredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:45: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (iv) Dredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:45: (i) Constructiondredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:46: 12 and 13 1, 4, 5 and 9 (xi) Dredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:46: (i) Demolitiondredging;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:54: Capital dredging and disposal

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:54: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:54: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:54:Dredged material type Open quay (m3) Solid quay (m3)

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:54: (3) For phases 1 and 2, the dredging of the contaminated silts will be undertaken using enclosed

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:54: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing Suction

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:54:Hopper Dredger (TSHD).

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:55: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) willmust be

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:55:undertaken using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2,

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:55:dredging of sands and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:55: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C (TY

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:55:150)offshore dredged material disposal sites—

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:58: Capital dredging, disposal conditions and debris

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:58: 34.—(1) The undertaker must agree a capital dredge and disposal strategy with the MMO at least

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:58: (2) If any disposal or dredging activities are to take place after 1st October 2017 then—

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:58: months prior to that dredging or disposal activity being carried out;

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:58: validated by the MMO at least six weeks prior to the dredging or disposal activity being

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:58: © the dredging and disposal activity must not be carried out without the consent of the MMO.

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:58: 35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:58: 36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:58: 37. The undertaker must ensure that any man-made material is separated from the dredged

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:58:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:78: (a) in relation to the pipes as are works other than dredging any part of the authorised

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:78: (b) in relation to dredging any part of the authorised development which—

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:79: (g) details of the method location and extent of any dredging, an technical assessment of the

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:79: likely effect of the dredging on the protected crossings and any mitigation measures which

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:81: 13.—(1) Where excavation of trenches (including excavation by dredging) adjacent to the pipesa

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:94: (e) commencing any dredging operation,

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:94:dredging operation or altered drawings.

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:94: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:94:paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:95:Capital dredge and disposal Schedule 5, paragraph 35 The whole strategy

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:97: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:100: may reasonably be put in dredging the river to remove the sedimentation or in making good

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:100: (b) carry out the necessary dredging at its own expense and subject to the prior approval of the

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:102:under any duty to dredge the approaches from the river channel to the quay, or the berthing pocket

TR030002-000840-Document 4.1C - Draft Development Consent Order (Tracked).pdf:102: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the Tees

TR030002-000482-Section 12 App 12.2 Transport Assessment_2 of 2.pdf:4: Mobilisation of Dredgers Mobilisation of Dredgers

TR030002-000482-Section 12 App 12.2 Transport Assessment_2 of 2.pdf:4: Dredging of the Berthing Pocket (85,000DWT) Dredging of the Berthing Pocket (85,000DWT)

TR030002-000482-Section 12 App 12.2 Transport Assessment_2 of 2.pdf:4: Dredging of the River (for 85,000DWT) Dredging of the River (for 85,000DWT)

TR030002-000482-Section 12 App 12.2 Transport Assessment_2 of 2.pdf:11: MMO Dredging material from around the Cleveland Potash Limited outfall for disposal Construction phase should be checked against ours Yes NONE

TR030002-000482-Section 12 App 12.2 Transport Assessment_2 of 2.pdf:75: GENPOR.General Labour Port Dredging Civils Construct Port Marine - Dredging - Labour 0 Dredging - Civils 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

TR030002-000482-Section 12 App 12.2 Transport Assessment_2 of 2.pdf:76: GENPOR.General Labour Port Dredging Civils Construct Port Marine - Dredging - Labour 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

TR030002-000482-Section 12 App 12.2 Transport Assessment_2 of 2.pdf:77: GENPOR.General Labour Port Dredging Civils Construct Port Marine - Dredging - Labour 0 0 0 0 0 0 0 0 0 0 0

TR030002-000705-Applicant response to First Questions - Appendix 7.pdf:10: al dredged m material to be

TR030002-001873-Decision holding letter (1).pdf:1: construction and operation of a quay structure; the dredging of the approach

TR030002-001873-Decision holding letter (1).pdf:2: © dredging of up to 750,000 cubic metres of material from the approach

TR030002-000739-TATA Steel UK Limited and Others.pdf:5:1.20 Dredging activity is also likely to have a significant impact on shipping.

TR030002-000739-TATA Steel UK Limited and Others.pdf:15:2.61 Dredging activity is also likely to have a significant impact on shipping.

TR030002-000739-TATA Steel UK Limited and Others.pdf:18:Bran Sands waste disposal site or in the disposal of contaminated silt from capital dredging.

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:22:• Dredging of the berthing area;

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:26: Construction and dredging  13

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:30: significant regional and national • Dredging – allowing sufficient berth

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:36: The quay deck level will be approximately effect being that the Tees would have result in less dredging of the Tees

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:36: level of dredging in order to clear

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:37:AND DREDGING

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:37:CONSTRUCTION DREDGING matches that of the remainder of the

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:37:to construct the proposed harbour it would be necessary to dredge an area the estuary and the proposed quay

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:37:expected in July 2018. Phase 2 would be channel. Dredging involves the removal bCD). At the docking area, along the

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:37: accommodate the proposed ships Dredging of the approach channel would

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:37:There is also potential for some dredging process would be removed require further dredging than the closed

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:37:the site on barges using the River Tees another part of the estuary, this process Most dredging would be carried out as

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:37:via an existing jetty. is known as capital dredging. part of the construction process,

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:37: The necessary dredging would include however some would be required as part

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:37: enter the quay area safely. The dredging build-up of river sediment in the quay

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:37: CONSTRUCTION AND DREDGING

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:37: DCO APPLICATION BOUNDARY DREDGING ENVELOPES CONVEYOR OPTIONS QUAY

TR030002-000672-Doc 6.1 Consultation Statement Appendices - 10 to 21.pdf:295: • Berthing area – a berthing area for vessels will be dredged alongside

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:5: 3.6.3 Dredging 25

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:5: 3.7 Disposal of dredged material 26

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:11: All three options would require capital dredging of an approach channel to the marine

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:11: system associated with Option 3), as well as the proposed capital dredge areas for the

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:29: • Dredging an approach channel from 14.1m below Chart Datum (bCD) and

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:29: 10.4m bCD to 15.1m bCD (approximately 800,000m3 of material) and dredging a

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:29: proposed dredge footprints are provided in Section 3.6.3).

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:33: • Mobilisation (including dredgers).

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:33: • Dredging of the approach channel and berth pocket.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:33:3.6.3 Dredging

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:33: Capital dredging of the approach channel and the berth pocket at Bran Sands would be

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:33: that would require dredging and to inform the detailed design of the facility. This will

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:33: also inform the consideration of possible alternative uses for the dredged material (see

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:33: The total volume of material to be dredged from the berth pocket and approach channel

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:33: are anticipated to be approximately 548m long x 40m wide (dredged to a depth of 16m

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:33: bCD), while the approach channel would require dredging along a length of

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:33: approximately 3,560m x 150m wide (dredged to a depth of 15.1m bCD).

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:34: The results of the marine site investigation will determine which method(s) of dredging

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:34: • backhoe/grab dredger;

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:34: • cutter suction dredger; or

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:34: • trailing suction hopper dredger.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:34: dredging within the berthing pocket and approaches. The volume of maintenance

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:34: dredging required on an annual basis will be predicted during the EIA process (see

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:34: Section 4.1). It is proposed that dredging activities would be carried out 24 hours a day.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:34:3.7 Disposal of dredged material

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:34: necessary to seek alternative uses for the dredged arisings, with disposal at sea being

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:34: Alternative use of dredged material

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:34: An option being considered for the use of dredged material is to reclaim Bran Sands

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:34: addition, dredged material would be used as infill for the continuous quay (reclamation)

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:35: The engineering feasibility of reclaiming the lagoon using dredged material depends on

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:35: the nature of the dredged material (i.e. its geotechnical properties) and the volume of

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:35: Alternative uses for the dredged material will be explored through the EIA process and

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:35: Offshore disposal of dredged material

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:35: There are two active disposal sites that could potentially accept the dredged material:

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:35: historically been used for the disposal of dredged material and have received both

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:35: capital and maintenance dredgings. Tees Bay C has predominantly been used for

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:35: capital dredged material, but has received quantities of maintenance material in some

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:35: Should it not be possible to use the dredged material in a beneficial way for either

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:39: of dredging and disposal and recommends a four stage process, as follows:

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:41: HaskoningDHV, 2012a), in addition to a maintenance dredging baseline document

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:44: currents, vessel induced forces and resuspension of material by dredging operations.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:44: sedimentary regime of the estuary is likely to arise from the capital dredging of the

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:44: of sediment released from the bed and/or overflowing from the dredger. Sediments

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:44: of any related plume would be negligible compared with the dredging-related plume.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:44: The dredged material generated during the construction phase may (following

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:44: consideration of alternative uses) be disposed of at one or more offshore dredged

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:44: disposal of dredged material may have an effect on the hydrodynamic and sedimentary

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:44: licensed sites and the quantity of dredged arising under the proposed scheme is of the

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:44: in the estuarine hydrodynamics, including sedimentation into the dredged berth

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:45: of the proposed scheme (including quay structures and the dredged berth pocket and

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:45: impacts of the proposed dredging, the existing bathymetry in the berth area and

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:45: the possible placement of dredged material in the Bran Sands Lagoon or the offshore

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:45: disposal of dredged material. This is because the infill of the lagoon would not

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:45: Sediment dispersion from dredging

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:45: dredged sediment types and quantities, dredger vessels and production rates), the

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:45: the water column during the capital dredging.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:46: The scale of capital dredging proposed is unlikely to significantly alter the estuary-wide

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:46: This will be informed by dredged volume data from nearby jetties or berth pockets, and

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:46: the results will inform the prediction of future maintenance dredging requirements.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:53: from being disposed of to sea. As a result, a licence was issued for disposal of dredged

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:53: that is proposed to be dredged as part of the QEII jetty refurbishment project. In

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:53: be taken from the proposed dredge area. The vibrocores sampled down to 4m below

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:55: constituent of the proposed dredge was licensed for offshore disposal; the overlying

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:55: NGCT, which proposed dredging of 4.8million m3, did not, however, predict any impacts

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:55: on the designated bathing waters associated with the dredging plume.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:55: Reduced water quality associated with sediment disturbance during dredging and piling

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:55: The potential exists for sediment disturbance / re-suspension during dredging of the

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:56:Disposal of dredged material at the offshore disposal sites would cause a temporary and

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:56:dredging, the effect of the disposal of fine material at the disposal sites is of minor

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:56:significance. The capital dredging was predicted to result in far lower rates of

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:56:introduction of fines to the disposal sites than occurs during maintenance dredging.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:56:dredging will be lower. There would be some short-term build-up of fine sandy sediment

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:56:accumulation of coarser sediments arising from the dredging of stiff clay was also

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:56:Increased suspended sediment concentration due to maintenance dredging

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:56:During the operational phase, maintenance dredging at the berth would be required to

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:56:maintain the advertised dredge depth. Such maintenance dredging is likely to lead to an

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:56:included within PD Port’s wider maintenance dredge campaigns.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:57: proposed approach channel (where dredging is envisaged). The sampling sites and

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:57: • Cefas Guideline Action Levels for the disposal of dredged material (Cefas,

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:57: material to be dredged will inform this assessment.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:57: The main form of mitigation to limit sediment plume generation due to dredging is

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:57: achieved through the selection of the dredging method. The use of an enclosed

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:57: backhoe dredger is the most acceptable method as this would result in a significantly

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:57: suction dredger or trailing suction hopper dredger. The selection of an appropriate

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:57: dredging method is a combination of technical, economic and environmental factors and

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:58: areas subject to regular dredging and sediment removal. Analysis of macrobenthic data

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:58: dredging.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:59: Direct loss of benthic habitat as a result of capital dredging and piling

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:59: The dredging required to deepen the approach channel and create a berth pocket would

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:59: result in the direct loss of benthic community within the footprint of the dredging. This

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:59: removed from within the dredged areas. A total dredge volume of 1.05 million m3 is

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:59: berth pocket and 800,000m3 dredged from the approach channel. The benthic habitat

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:59: within the dredge footprint for the berth pocket is likely to be relatively undisturbed, given

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:59: that the area is not subject to regular disturbance from maintenance dredging.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:61:not dredged by PD Ports and, as such, the habitat will not have been subject to regular

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:61:suspended sediment during dredging and deposition following dredging

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:61:biological oxygen demand. Sediment would disperse from the dredge location and

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:62:the seabed at the locations where sediment settles out of suspension. Dredging is also

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:62:the location of the dredging activity, with the volume of sediment released into the water

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:62:column being influenced by the dredging method employed. Beyond the immediate

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:62:vicinity of the dredging, dispersion and dilution of the sediment plume would occur and

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:62:any increase in TSS would be less significant than at the dredge site.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:62:Capital dredging is a temporary activity which (based on previous modelling

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:62:disturbance is likely to be generated during piling and dredging activities, required as

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:62:Smothering of benthic habitat due to disposal of dredged material

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:62:Dredged material is proposed to be disposed of within licensed offshore disposal sites.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:62:Given that the disposal sites are licenced to accept dredged material, no unacceptable

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:62:ecological impacts are anticipated from the offshore disposal of dredged material.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:63: scheme). The ES for the NGCT scheme also concluded that capital dredging will result

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:63: maintenance dredging. Therefore, the physical effects of the material disposed at the

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:63: site during capital dredging were considered to be lower. It was predicted that there

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:63: dredging of stiff clay will occur on the seabed.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:63: dredged material is unlikely to result in an unacceptable impact; however, this will be

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:63: dredging.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:67: The dredging required for the proposed scheme has the potential to affect food

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:67: deposition of fine sediment disturbed by dredging.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:67: by other birds species for roosting. The placement of dredged material to partially

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:67: During the operational phase, there is likely to be an increased maintenance dredge

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:67: dredging (see Section 5.1.5). This modelling work will be used to predict the effects of

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:73: Direct uptake and disturbance of fish during dredging

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:73: Depending upon the method employed, dredging operations have the potential to result

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:73: disturbance caused by the dredge head of a cutter suction dredger or the bucket of a

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:73: backhoe dredger are likely to cause the majority of fish to move away from the

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:73: immediate dredge area, thereby avoiding the likelihood of direct uptake. The proposed

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:73: method of dredging for the proposed scheme has not yet been determined.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:73: The capital dredging required has the potential to indirectly impact on fish species

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:73: lower concentrations can result in sub-lethal stress or avoidance reactions. Dredging

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:73: There is potential for the dredging and piling operations to generate underwater noise,

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:73: of the seabed. The proposed capital dredging has potential to adversely impact on

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:73: dredge footprint. Given that the proposed berth pocket is not routinely maintenance

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:73: dredged, there is potential for a diverse benthic community to be present which may

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:74: The main mitigation measure to limit sediment plume generation due to dredging is the

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:74: selection of the dredging method. The use of an enclosed backhoe dredger is the most

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:74: dredger or trailing suction hopper dredger. The selection of an appropriate dredging

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:81: • Disturbance to marine ecological species from piling and dredging (e.g. fish,

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:81: movements during dredging and piling activities.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:81: involved in maintenance dredging activities) and vehicles used to transport site

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:83: material, potentially indicative of a former land surface in previously undredged areas.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:83: Royal HaskoningDHV are unaware of the dredge footprint (berth pocket and dredge

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:84: The proposed dredge area for the berth pocket associated with the proposed scheme is

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:84: outside the limits of the existing dredged approach channel and, therefore, there is the

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:84: currently dredged channel and, as such, the potential for encountering archaeological

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:85: Tees Bay. The approach channel has a dredged depth of 15.4m below CD from Tees

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:85: the entrance. The current dredge depths of the channel are shown in Figure 5.8.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:86: The proposed scheme requires approximately 1.05 million m3 of material to be dredged

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:86: The presence of the dredger and construction plant has potential to result in conflicts

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:87:Figure 5.8 Dredged depths within the Tees estuary

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:88: Dredging operations at the proposed berth will not be specifically considered because

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:88: the proposed berth pocket dredging will fall within the construction exclusion zone.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:88: Dredging of the approach channel would impact the operation of Port and a specific plan

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:89: system and dredging to create a berth pocket and required depth in the approach

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:89: channel. Such dredging would increase the depth of water adjacent to the river bank.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:92: capital dredging. Impacts could also arise during the operational phase due to

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:92: dredging activities for the approach channel and berth pocket.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:93: • Infilling of the lagoon with dredged material – this may partially affect the

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:93: all times and limiting the dredge footprint to reduce the potential for impacts on surface

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:98: recreation activities during the construction phase due to the presence of the dredger

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:98: dredged approach channel and, therefore, this does not represent a significant change

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:100: • Able UK Seaton port (and capital dredging of Seaton Channel).

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:102: • Dredging to create a berthing pocket and deepen the approach channel

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:102: • Maintenance dredging required (water quality, mitigation measures in place).

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:102: Subject to consideration of alternative uses, all material dredged from the seabed would

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:102: the assessment of the potential impact of dredging and disposal on the requirements of

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:105:Hydrodynamic • Creation of a sediment plume during dredging and piling works. • Use of TELEMAC-3D flow model to

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:105:sedimentary approach channel. released during capital dredging.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:105: dredged berth pockets and approach channel.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:105:Marine • Reduced water quality associated with dredging, piling and • Recovery of sediment samples at th

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:105: construction works. proposed dredge footprints.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:105: • Reduced water quality due to offshore disposal of dredged • Sediment quality results would be c

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:105: material to be dredged will inform this

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:106:Marine ecology • Direct loss of benthic habitat due to dredging and piling. • Benthic invertebrate surveys propos

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:106: • Potential for smothering of seabed following dredging and

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:106: areas following dredging.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:106:Natural fisheries • Direct uptake and disturbance of fish during dredging • A desk based assessment is propos

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:106: construction and capital dredging. • A requirement to collect new primary

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:107: and dredging (e.g. fish, marine mammals, birds). • Assessment of road traffic noise imp

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:107: and dredging (e.g. fish, marine mammals, birds).

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:107: construction due to presence of dredger and construction • Findings of the potential effects on

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:108: • Impacts on water quality at abstraction points during dredging. section.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:109: Cefas (2010). Cefas Action Levels for the assessment of suitability of dredged material

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:109: Environment Agency (2012). Clearing the waters. Marine Dredging and the Water

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:109: Halcrow, (1991). Tees estuary Dredging Review. Report for Tees and Hartlepool Port

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:110:HR Wallingford (1992). Tees and Hartlepool Port Authority. Review of Dredging. EX

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:110:Royal Haskoning (2011). Tees Maintenance Dredging Annual Review 2009 - 2010.

TR030002-000462-Section 4 App 4.1 Environmental Scoping Report.pdf:110:Royal HaskoningDHV (2012b). Tees Maintenance Dredging Baseline Document

TR030002-000839-Huntsman Polyurethanes (UK) Ltd - Deadline 4 Submission.pdf:11: (f) details of the method location and extent of any dredging, an technical assessment of the

TR030002-000839-Huntsman Polyurethanes (UK) Ltd - Deadline 4 Submission.pdf:11: likely effect of the dredging on the protected crossings and any mitigation measures which are

TR030002-000839-Huntsman Polyurethanes (UK) Ltd - Deadline 4 Submission.pdf:13:13. (1) Where excavation of trenches (including excavation by dredging) adjacent to a pipeline affects its

TR030002-000253-Regulation 24 Transboundary Screening document (4).pdf:1: o quay (including dredging)

TR030002-000253-Regulation 24 Transboundary Screening document (4).pdf:2: • Able UK Seaton port (and capital dredging of Seaton

TR030002-000253-Regulation 24 Transboundary Screening document (4).pdf:2: proposed development includes dredging works in the approach

TR030002-000253-Regulation 24 Transboundary Screening document (4).pdf:2: what use will be made of the dredged material, but options

TR030002-000253-Regulation 24 Transboundary Screening document (4).pdf:3: The Scoping Report confirms that the dredging works have the

TR030002-000253-Regulation 24 Transboundary Screening document (4).pdf:3: dredging works.

TR030002-000253-Regulation 24 Transboundary Screening document (4).pdf:3: by the piling and dredging works, but has not identified any

TR030002-000253-Regulation 24 Transboundary Screening document (4).pdf:4: • offshore disposal of dredged material.

TR030002-000253-Regulation 24 Transboundary Screening document (4).pdf:5:application. The extent of the dredging works is now limited to the immediate approach

TR030002-000253-Regulation 24 Transboundary Screening document (4).pdf:5:Offshore disposal of dredged material

TR030002-000253-Regulation 24 Transboundary Screening document (4).pdf:5:The ES includes an assessment of the potential effects of offshore disposal of dredged

TR030002-000253-Regulation 24 Transboundary Screening document (4).pdf:5:material arising from capital dredging (ES Section 22: Offshore disposal of dredged

TR030002-000253-Regulation 24 Transboundary Screening document (4).pdf:5:In relation to commercial navigation, the numbers of dredging vessels transiting through

TR030002-000253-Regulation 24 Transboundary Screening document (4).pdf:5:dredged material.

TR030002-000448-ES Section 13 Air quality.pdf:14: construction phase dredging emissions associated with the operation of the Harbour facilities.

TR030002-000448-ES Section 13 Air quality.pdf:35:13.4.10 The area proposed to be dredged is shown on Drawing PB1586-SK91 and Drawing PB1586-SK93.

TR030002-000448-ES Section 13 Air quality.pdf:35: Dredging is required during both Phase 1 and Phase 2 construction periods and would occur for a

TR030002-000448-ES Section 13 Air quality.pdf:35: and 10 weeks for Phase 2 (solid structure). The area to be dredged is not located in close proximity to

TR030002-000448-ES Section 13 Air quality.pdf:35: dredging operation would not result in significant long term effects or emissions. A quantitative

TR030002-000448-ES Section 13 Air quality.pdf:35: assessment of emissions from dredgers is not therefore required.

TR030002-000771-York Potash Ltd (3).pdf:7: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-000771-York Potash Ltd (3).pdf:7: “dredging” means using any device to move material (whether or not suspended in water) from

TR030002-000771-York Potash Ltd (3).pdf:7: “gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-000771-York Potash Ltd (3).pdf:8: © dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-000771-York Potash Ltd (3).pdf:9: (b) dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-000771-York Potash Ltd (3).pdf:9: “sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-000771-York Potash Ltd (3).pdf:9: “silt” means dredged materials with a diameter of at least 31.25 and less than 62.5 micrometres;

TR030002-000771-York Potash Ltd (3).pdf:29: (3) dredging of approach channel and berth pocket; and

TR030002-000771-York Potash Ltd (3).pdf:35: 1 1, 2, 4 and 9 (i) Dredging;

TR030002-000771-York Potash Ltd (3).pdf:35: 2, 3 1 and 9 (i) Dredging; and

TR030002-000771-York Potash Ltd (3).pdf:35: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000771-York Potash Ltd (3).pdf:35: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) Dredging;

TR030002-000771-York Potash Ltd (3).pdf:36: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) Dredging;

TR030002-000771-York Potash Ltd (3).pdf:37: 12 and 13 1, 4, 5, 9 and 10 (i) Dredging;

TR030002-000771-York Potash Ltd (3).pdf:40: 1 1, 2, 4 and 9 (i) Dredging;

TR030002-000771-York Potash Ltd (3).pdf:41: 2, 3 1 and 9 (i) Dredging; and

TR030002-000771-York Potash Ltd (3).pdf:41: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000771-York Potash Ltd (3).pdf:41: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) Dredging;

TR030002-000771-York Potash Ltd (3).pdf:42: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) Dredging;

TR030002-000771-York Potash Ltd (3).pdf:43: 12 and 13 1, 4, 5 and 9 (i) Dredging;

TR030002-000771-York Potash Ltd (3).pdf:50: Capital dredging and disposal

TR030002-000771-York Potash Ltd (3).pdf:50: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-000771-York Potash Ltd (3).pdf:50: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-000771-York Potash Ltd (3).pdf:50:Dredged material type Open quay (m3) Solid quay (m3)

TR030002-000771-York Potash Ltd (3).pdf:50: (3) For phases 1 and 2, the dredging of the contaminated silts will be undertaken using enclosed

TR030002-000771-York Potash Ltd (3).pdf:50: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing Suction

TR030002-000771-York Potash Ltd (3).pdf:50:Hopper Dredger (TSHD).

TR030002-000771-York Potash Ltd (3).pdf:51: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) will be undertaken

TR030002-000771-York Potash Ltd (3).pdf:51:using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2, dredging of sands

TR030002-000771-York Potash Ltd (3).pdf:51:and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-000771-York Potash Ltd (3).pdf:51: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C (TY

TR030002-000771-York Potash Ltd (3).pdf:51:150)offshore dredged material disposal sites—

TR030002-000771-York Potash Ltd (3).pdf:54: Capital dredging, disposal conditions and debris

TR030002-000771-York Potash Ltd (3).pdf:54: 34. The undertaker must agree a capital dredge and disposal strategy with the MMO at least 4

TR030002-000771-York Potash Ltd (3).pdf:54: 35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-000771-York Potash Ltd (3).pdf:54: 36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-000771-York Potash Ltd (3).pdf:54: 37. The undertaker must ensure that any man-made material is separated from the dredged

TR030002-000771-York Potash Ltd (3).pdf:54:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-000771-York Potash Ltd (3).pdf:80: (e) commencing any dredging operation,

TR030002-000771-York Potash Ltd (3).pdf:80:dredging operation or altered drawings.

TR030002-000771-York Potash Ltd (3).pdf:80: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-000771-York Potash Ltd (3).pdf:80:paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-000771-York Potash Ltd (3).pdf:81:Capital dredge and disposal Schedule 5, paragraph 35 The whole strategy

TR030002-000771-York Potash Ltd (3).pdf:83: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000771-York Potash Ltd (3).pdf:86: may reasonably be put in dredging the river to remove the sedimentation or in making good

TR030002-000771-York Potash Ltd (3).pdf:86: (b) carry out the necessary dredging at its own expense and subject to the prior approval of the

TR030002-000771-York Potash Ltd (3).pdf:88:under any duty to dredge the approaches from the river channel to the quay, or the berthing pocket

TR030002-000771-York Potash Ltd (3).pdf:88: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the Tees

TR030002-000763-Document 4.2A Draft Explanatory Memorandum (Clean).pdf:7: ii. dredging of the approach channel and berth pocket;

TR030002-000763-Document 4.2A Draft Explanatory Memorandum (Clean).pdf:19: This is the dredging of the approach channel and berth pocket and the demolition

TR030002-000763-Document 4.2A Draft Explanatory Memorandum (Clean).pdf:20:involve the placing of dredged materials into the lagoon to create shallow water

TR030002-000763-Document 4.2A Draft Explanatory Memorandum (Clean).pdf:21: Dredging of material from the approach channel and berth pocket;

TR030002-000763-Document 4.2A Draft Explanatory Memorandum (Clean).pdf:21: Placement of dredge material within Bran Sands Lagoon (habitat

TR030002-000763-Document 4.2A Draft Explanatory Memorandum (Clean).pdf:22:  Dredging of material from the approach channel and berth pocket;

TR030002-000763-Document 4.2A Draft Explanatory Memorandum (Clean).pdf:22: conditions in relation to the quay and dredge area in the event that

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:13:The habitat enhancement proposals comprise the placement of capital and maintenance dredged arisings

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:14:placement of dredged material in Bran Sands lagoon would provide habitat enhancement. The proposals

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:16: enhancement proposals (placement of dredged evidence

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:18:dredging contractors, who confirmed that the approach illustrated is deliverable.

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:18: dredging. The ground investigation may need to be extended to cover the lagoon.

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:18:the sediment quality at the site of the proposed port terminal and within the footprint of the capital dredging is

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:19:and to contain the placement of dredged material in subsequent stages of the works. Marl would continue to

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:19:capital dredging or imported (e.g. sand/gravel) to create island habitats. To suppress vegetation growth, a

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:19:maintenance material is to be placed (in Stage 8) as the dredged material dewaters to the Tees estuary (i.e.

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:19:Uncontaminated and fine (i.e. silt) maintenance dredged material would be pumped into the placement area.

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:19:When the desired level has reached, pumping of dredged material would cease and the silt box would be

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:21: PUMP IN MAINTENANCE DREDGING TRIM BUND (REMOVING

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:21: DREDGE MATERIALS

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:22:dredged material of 30cm. In addition, further survey of the bathymetry of the lagoon would be undertaken.

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:23:The habitat enhancement works would be implemented in parallel with the capital dredging works. It is not

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:23:possible to implement the habitat enhancement measures in advance of the capital dredging because the

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:23:material required to form the bund to retain the maintenance dredged material and create the islands is to be

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:23:derived from the capital dredged arisings.

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:23:the timing of availability of maintenance dredged material. However, maintenance dredged arisings are

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:23:It is proposed that the new shallows would be created using uncontaminated, silty material that is dredged

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:23:disposal of maintenance dredged material in the marine environment requires that the quality of the

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:23:Maintenance dredging is undertaken within 13 reaches throughout the Tees estuary and the nature of the

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:23:dredged material (in terms of particle size) varies according to location throughout the estuary. It would,

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:24:therefore, be possible to select silty material from maintenance dredging of an appropriate reach of the

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:24:Maintenance dredging and disposal is undertaken by PD Ports and the MMO has indicated that PD Ports’

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:24:marine licence (for disposal of dredged material) could be varied to include Bran Sands lagoon as a location

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:24:for the placement of maintenance dredged material. This would represent an alternative use of dredged

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:24:process for disposal of dredged material. Consultation with PD Ports will, therefore, be undertaken as part

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:24:was recharged with maintenance dredged silts.

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:24:evolution of a site that had no invertebrate value and was recharged with maintenance dredging. Although

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:27:(maintenance dredgings) placed in an area of eroding saltmarsh adjacent to a marina in the Crouch estuary,

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:27:maintenance dredged material recharged onto an intertidal area, namely:

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:27: 1. Direct transfer within the dredged material.

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:27:occur due to the smothering effect and depth of sediment associated with the placement of the dredged

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:28:likely means of colonisation of the maintenance dredged material. Planktonic recruitment is considered

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:28:dredged material, given that estuarine invertebrate reproduction is seasonal and restricted to late spring or

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:33:The elevation and profile of the placed dredged material would also be monitored (in part to establish item 1

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:34:additional maintenance dredged material, and vegetation management (e.g. on the islands, should

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:36:Royal HaskoningDHV (2014b). Tees Maintenance Dredging Annual Review 2013. Prepared for PD Ports.

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:42:  From a Health and Safety (and dredging vessel availability) perspective how likely is it that

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:42: these dredging operations will be allowed to coincide with the other consented schemes by

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:42: the harbour authority? (11.3.10). It is also not clear if the combined dredging impacts (one

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:43: o Detail on how careful calculations of levels and placement of bunds/dredgings will be

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:43: o Details of suitable substrates – the non-toxic fines from maintenance dredgings – and

TR030002-000799-Document 6.12A - Mitigation and Monitoring Strategy - Rev 4.pdf:43: England suggests grab samples are taken at the proposed dredge site to ground

TR030002-000018-Examination Library (1).pdf:15:APP-258 Section 22: Offshore Disposal of Dredged Material

TR030002-000018-Examination Library (1).pdf:23:REP3-008 York Potash Ltd - Dredging Note. Appendix 3 of Submissions from

TR030002-000253-Regulation 24 Transboundary Screening document (2).pdf:1: o quay (including dredging)

TR030002-000253-Regulation 24 Transboundary Screening document (2).pdf:2: • Able UK Seaton port (and capital dredging of Seaton

TR030002-000253-Regulation 24 Transboundary Screening document (2).pdf:2: proposed development includes dredging works in the approach

TR030002-000253-Regulation 24 Transboundary Screening document (2).pdf:2: what use will be made of the dredged material, but options

TR030002-000253-Regulation 24 Transboundary Screening document (2).pdf:3: The Scoping Report confirms that the dredging works have the

TR030002-000253-Regulation 24 Transboundary Screening document (2).pdf:3: dredging works.

TR030002-000253-Regulation 24 Transboundary Screening document (2).pdf:3: by the piling and dredging works, but has not identified any

TR030002-000253-Regulation 24 Transboundary Screening document (2).pdf:4: • offshore disposal of dredged material.

TR030002-000253-Regulation 24 Transboundary Screening document (2).pdf:5:application. The extent of the dredging works is now limited to the immediate approach

TR030002-000253-Regulation 24 Transboundary Screening document (2).pdf:5:Offshore disposal of dredged material

TR030002-000253-Regulation 24 Transboundary Screening document (2).pdf:5:The ES includes an assessment of the potential effects of offshore disposal of dredged

TR030002-000253-Regulation 24 Transboundary Screening document (2).pdf:5:material arising from capital dredging (ES Section 22: Offshore disposal of dredged

TR030002-000253-Regulation 24 Transboundary Screening document (2).pdf:5:In relation to commercial navigation, the numbers of dredging vessels transiting through

TR030002-000253-Regulation 24 Transboundary Screening document (2).pdf:5:dredged material.

TR030002-001873-Decision holding letter (4).pdf:1: construction and operation of a quay structure; the dredging of the approach

TR030002-001873-Decision holding letter (4).pdf:2: © dredging of up to 750,000 cubic metres of material from the approach

TR030002-000868-CATS Parties - young lady report.pdf:43: it might then have been feasible to dredge the anchor and clear Young Lady from the

TR030002-000868-CATS Parties - young lady report.pdf:49: • Steam away from the pipeline dredging his anchor, until he had sufficient sea

TR030002-000490-Section 12 App 12.10 Peak construction employee numbers.pdf:3: GENPOR.General Labour Port Dredging Civils Construct Port Marine - Dredging - Labour 0 Dredging - Civils 0 0 0 0 0 0 0 0 0 0

TR030002-000490-Section 12 App 12.10 Peak construction employee numbers.pdf:4: GENPOR.General Labour Port Dredging Civils Construct Port Marine - Dredging - Labour 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

TR030002-000490-Section 12 App 12.10 Peak construction employee numbers.pdf:5: GENPOR.General Labour Port Dredging Civils Construct Port Marine - Dredging - Labour 0 0 0 0 0 0 0 0 0 0 0

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:3:there would be any potential disturbance and displacement of bird species for example, due to increased sea traffic and dredging works

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:4:The indirect impacts on SPA birds on Bran Sands through loss of sediments from dredging should be considered.

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:5:material from the capital dredge for habitat creation. This could be used to create roost islands at Bran Sands.

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:5:A full assessment of impacts due to dredging will be needed in the ES.

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:23:9.5.1 As discussed in Section 5.5, the proposed capital dredging would cause suspension of fine sediment

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:23: through the water column. The proposed use of an enclosed grab for dredging contaminated sediment

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:23: would result in negligible loss of contaminated material. Dredging of sand and gravel, clay and

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:23: mudstone could be undertaken using a CSD, TSHD and backhoe dredger. The predicted increase in

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:24: suspended sediment concentration resulting from the use of this dredging plant is presented in Section

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:24:9.5.2 The potential effect of dredging using a CSD and TSHD on suspended sediment concentration in the

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:24:9.5.3 It is predicted that increased suspended sediment concentrations for the duration of capital dredging

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:24:9.5.4 The mitigation measures that are proposed to limit sediment release during capital dredging (see

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:24: Smothering of intertidal food resource through deposition of fine sediment following dredging

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:24: dredging would be deposited on the intertidal areas in the study area and, therefore, no impact on the

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:29: Dredge Area Envelope

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:31: x Operatives for dredging works.

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:34: maintenance dredged material would mean that benthic invertebrates would be already present within

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:36: change to the maintenance dredging method or frequency and, therefore, there would be no significant

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:36: underwater noise effect associated with maintenance dredging for the proposed berth pocket.

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:37: new dredged approaches and extended area of -14.1m CD channel. This modelling predicted a

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:38:9.6.32 In terms of maintenance dredging requirement of the proposed berth pocket and approach channel,

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:38: regime would not alter the present frequency of, or methodology used for, maintenance dredging and

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:40: the lagoon, recharging the shallow water area with additional maintenance dredged material and

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:40: x impacts to the feeding resource due to reduced water quality (associated with capital dredging);

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:42: Reduction of sediment plumes during backhoe dredgin

TR030002-000444-ES Section 9 Marine and coastal ornithology.pdf:42:dredging

TR030002-000443-ES Section 8 Marine ecology.pdf:4: proposed marine works (dredging and port terminal construction), and the adjacent areas which have

TR030002-000443-ES Section 8 Marine ecology.pdf:5:construction and operational activities including piling, lighting and dredging.

TR030002-000443-ES Section 8 Marine ecology.pdf:5:Detailed information should be included in the ES regarding the dredging and piling works in order to contribute to the marine

TR030002-000443-ES Section 8 Marine ecology.pdf:8:The applicant has stated if no alternative uses for dredged material can be found, then all dredged material will be disposed of

TR030002-000443-ES Section 8 Marine ecology.pdf:10:created through the foreshore area. progresses and reported in the ES. the proposed dredge in the quay c

TR030002-000443-ES Section 8 Marine ecology.pdf:10:Confirmation was required on the dredge The initial estimate of total dredge This is large dredge in the Point

TR030002-000443-ES Section 8 Marine ecology.pdf:10:volumes. The new worst case dredge is (1.05Mm ) as stated in the original context of the Tees estuary. It is

TR030002-000443-ES Section 8 Marine ecology.pdf:10: During the concept design, the total annual maintenance dredge for

TR030002-000443-ES Section 8 Marine ecology.pdf:10: dredged volume was updated to the whole tidal river system.

TR030002-000443-ES Section 8 Marine ecology.pdf:10: maximum dredged volume is

TR030002-000443-ES Section 8 Marine ecology.pdf:11:Sands is included in the sampling Sands as no capital dredging would receptor and Natural England was p

TR030002-000443-ES Section 8 Marine ecology.pdf:11: proposed capital dredging would which

TR030002-000443-ES Section 8 Marine ecology.pdf:11:dredge volumes would be predicted during the transport studies to be undertaken on this

TR030002-000443-ES Section 8 Marine ecology.pdf:15: Oil Terminal Dredge Area Envelope

TR030002-000443-ES Section 8 Marine ecology.pdf:16: Dredge Area Envelope

TR030002-000443-ES Section 8 Marine ecology.pdf:16: Current Dredged Depths

TR030002-000443-ES Section 8 Marine ecology.pdf:17: capital dredging).

TR030002-000443-ES Section 8 Marine ecology.pdf:18: rope. It was placed at the edge of the dredged channel so that it did not interfere with shipping.

TR030002-000443-ES Section 8 Marine ecology.pdf:22: from dredging.

TR030002-000443-ES Section 8 Marine ecology.pdf:22: underwater noise from dredging. RAMSGeo was also used as a comparison to INSPIRE, to provide

TR030002-000443-ES Section 8 Marine ecology.pdf:23: and dredging

TR030002-000443-ES Section 8 Marine ecology.pdf:23:8.3.27 In order to assess the environmental effects that impact piling and dredging activities are likely to have

TR030002-000443-ES Section 8 Marine ecology.pdf:25: Bivalves, including Abra alba, were also present at locations within the dredged channel. The infaunal

TR030002-000443-ES Section 8 Marine ecology.pdf:26: maintenance dredging programmes. At near-shore and undredged locations, the opportunistic

TR030002-000443-ES Section 8 Marine ecology.pdf:44: Modelling of dredging noise

TR030002-000443-ES Section 8 Marine ecology.pdf:44: certain unweighted RMS SPLs are expected to occur, from two different dredging operations (backhoe

TR030002-000443-ES Section 8 Marine ecology.pdf:44: dredging and suction dredging). It can be seen in Table 8-13 that the unweighted RMS levels for

TR030002-000443-ES Section 8 Marine ecology.pdf:44: suction dredging extend to a greater range compared to the predicted ranges for a backhoe dredger.

TR030002-000443-ES Section 8 Marine ecology.pdf:44: limit. However, as only three transects have been modelled for dredging noise, the minimum limit is the

TR030002-000443-ES Section 8 Marine ecology.pdf:44: river bank opposite the dredge footprint (a distance of 485m).

TR030002-000443-ES Section 8 Marine ecology.pdf:45: Table 8-13 Summary of the modelled ranges for unweighted RMS SPLs in 10dB increments for dredging

TR030002-000443-ES Section 8 Marine ecology.pdf:45: Unweighted RMS SPLs Backhoe dredging Suction dredging

TR030002-000443-ES Section 8 Marine ecology.pdf:45: Direct removal of habitat due to quay construction and capital dredging

TR030002-000443-ES Section 8 Marine ecology.pdf:45:8.5.1 The dredging that would be required to create the berthing pocket and approaches would result in the

TR030002-000443-ES Section 8 Marine ecology.pdf:45: direct loss of benthic community within the footprint of the dredge (combined total of approximately

TR030002-000443-ES Section 8 Marine ecology.pdf:45: would still be present below the dredged footprint) but, in the short term, the benthic community would

TR030002-000443-ES Section 8 Marine ecology.pdf:45: be removed from within the capital dredged areas.

TR030002-000443-ES Section 8 Marine ecology.pdf:45:8.5.2 The infaunal benthic community in and immediately adjacent to the dredged approach channel was

TR030002-000443-ES Section 8 Marine ecology.pdf:45: footprint of the proposed berthing pocket is likely to be the maintenance dredging that occurs within the

TR030002-000443-ES Section 8 Marine ecology.pdf:45: the existing dredged approach channel. Hence it is concluded that the potential impact would be of

TR030002-000443-ES Section 8 Marine ecology.pdf:46:8.5.6 It is recognised that the port terminal and capital dredging would have an impact on biodiversity that is

TR030002-000443-ES Section 8 Marine ecology.pdf:46: this end, the footprint of the proposed capital dredging and quay construction has been minimised as

TR030002-000443-ES Section 8 Marine ecology.pdf:48: Potential impacts to marine ecology from increased total suspended sediment during dredging

TR030002-000443-ES Section 8 Marine ecology.pdf:48: and deposition following dredging

TR030002-000443-ES Section 8 Marine ecology.pdf:48:8.5.17 During capital dredging, a proportion of the material that is dredged would be disturbed and re-

TR030002-000443-ES Section 8 Marine ecology.pdf:48: column. The proposed dredging operations would not, however, result in any significant loss of

TR030002-000443-ES Section 8 Marine ecology.pdf:49: dredging the contaminated silt that overlies the geological material. This section, therefore, relates to

TR030002-000443-ES Section 8 Marine ecology.pdf:49:8.5.19 In general, sediment plumes induced by dredging are considered to pose only a limited risk to water

TR030002-000443-ES Section 8 Marine ecology.pdf:49: to accommodate an increased oxygen demand, particularly where dredging takes place in open sea or

TR030002-000443-ES Section 8 Marine ecology.pdf:49: basis during Phase 1 and Phase 2. During dredging, suspended sediment would rapidly disperse away

TR030002-000443-ES Section 8 Marine ecology.pdf:49: from the location of the dredge due to the relatively high current speeds in the unconfined area (as

TR030002-000443-ES Section 8 Marine ecology.pdf:49:8.5.20 As discussed during Section 3, the proposed dredging of geological deposits may involve the use of a

TR030002-000443-ES Section 8 Marine ecology.pdf:49: TSHD, CSD and a backhoe dredger. The assessment of potential impacts on marine ecological

TR030002-000443-ES Section 8 Marine ecology.pdf:49: dredging has been based on a worst case scenario, involving the use of a TSHD and CSD. As

TR030002-000443-ES Section 8 Marine ecology.pdf:49: discussed in Section 5.5, a backhoe dredger is considered likely to minimise the resuspension of

TR030002-000443-ES Section 8 Marine ecology.pdf:49: during dredging). A backhoe dredger is similar to a land-based excavator, and dredges the material in

TR030002-000443-ES Section 8 Marine ecology.pdf:49: consolidated lumps as opposed to creating a more fluid slurry of dredged material. The potential for

TR030002-000443-ES Section 8 Marine ecology.pdf:49: increased concentrations of suspended sediment within the water column due to dredging using a

TR030002-000443-ES Section 8 Marine ecology.pdf:49: backhoe dredger, therefore, would be significantly reduced in comparison with the potential for such

TR030002-000443-ES Section 8 Marine ecology.pdf:49: average, predicted mean concentration increases outside of the dredging area are a few tens of mg/l at

TR030002-000443-ES Section 8 Marine ecology.pdf:49: most (extending approximately 1km upstream and downstream of the dredge footprint). The

TR030002-000443-ES Section 8 Marine ecology.pdf:50:8.5.23 As discussed above, a proportion of the sediment that is dredged would be disturbed, re-suspended

TR030002-000443-ES Section 8 Marine ecology.pdf:50: an area approximately 2km and 3km either side of the proposed dredge footprint (upstream and

TR030002-000443-ES Section 8 Marine ecology.pdf:50: of the dredge footprint. Immediately upstream and downstream of the CSD and barge, deposition of

TR030002-000443-ES Section 8 Marine ecology.pdf:50: the dredger would be re-dredged.

TR030002-000443-ES Section 8 Marine ecology.pdf:50: potential dredging methods, leading to a prediction of negligible sediment being able to deposit on the

TR030002-000443-ES Section 8 Marine ecology.pdf:50: intertidal habitats due to sediment deposition following dredging are anticipated. Subtidal deposition is

TR030002-000443-ES Section 8 Marine ecology.pdf:50: predicted to be mostly within the existing dredged navigation channel.

TR030002-000443-ES Section 8 Marine ecology.pdf:50: dredging are also of relevance to this impact. The residual impact is predicted to be of negligible

TR030002-000443-ES Section 8 Marine ecology.pdf:50: construction of the port terminal (for either construction option) and capital dredging. There is little

TR030002-000443-ES Section 8 Marine ecology.pdf:50: published information on the levels of underwater noise produced by piling and dredging activities and

TR030002-000443-ES Section 8 Marine ecology.pdf:51: activity along its shores and is subject to the existing maintenance dredging regime. The underwater

TR030002-000443-ES Section 8 Marine ecology.pdf:51: 8m respectively. The underwater noise source levels from dredging operations was estimated at 165

TR030002-000443-ES Section 8 Marine ecology.pdf:51: dB re 1 μPa at 1m (SPLRMS) and 183 dB re 1 μPa at 1m (SPLRMS) for a backhoe and suction dredger

TR030002-000443-ES Section 8 Marine ecology.pdf:52: The dBht (species) metric – behavioural response (backhoe and suction dredging)

TR030002-000443-ES Section 8 Marine ecology.pdf:52: behavioural response in harbour seal, predicted to arise due to backhoe and suction dredging.

TR030002-000443-ES Section 8 Marine ecology.pdf:52:8.5.40 The data show that the modelled impact ranges from dredging operations are all predicted to be 10m or

TR030002-000443-ES Section 8 Marine ecology.pdf:53: dredging levels with regard to harbour seal

TR030002-000443-ES Section 8 Marine ecology.pdf:53: Species Backhoe dredging Suction dredging

TR030002-000443-ES Section 8 Marine ecology.pdf:56: proposed dredging operations shows that noise levels are not predicted to be sufficient to reach the

TR030002-000443-ES Section 8 Marine ecology.pdf:56: backhoe and suction dredging is not predicted to reach the level at which traumatic hearing damage

TR030002-000443-ES Section 8 Marine ecology.pdf:56: and suction dredging are predicted to be 10m or less.

TR030002-000443-ES Section 8 Marine ecology.pdf:56: addition, the noise disturbance to seals due to piling and dredging would be reversible once such

TR030002-000443-ES Section 8 Marine ecology.pdf:58: to the existing maintenance dredging regime which will generate underwater noise. As discussed

TR030002-000443-ES Section 8 Marine ecology.pdf:59: Recovery of the benthic community following completion of capital dredging

TR030002-000443-ES Section 8 Marine ecology.pdf:59:8.6.9 There would be a requirement for regular maintenance dredging of the approaches to the proposed

TR030002-000443-ES Section 8 Marine ecology.pdf:59:8.6.10 Maintenance dredging represents a repeated disturbance to the benthic community within the dredged

TR030002-000443-ES Section 8 Marine ecology.pdf:59: capital dredging. Although there would be recovery following capital dredging, the community would be

TR030002-000443-ES Section 8 Marine ecology.pdf:59:8.6.11 Any recolonisation of the seabed following the capital dredging would be beneficial compared with the

TR030002-000443-ES Section 8 Marine ecology.pdf:59: immediate post-dredge situation but, given that maintenance dredging would restrict continuous

TR030002-000443-ES Section 8 Marine ecology.pdf:59: recovery, the benthic community that colonises the seabed following capital dredging would be

TR030002-000443-ES Section 8 Marine ecology.pdf:59: subtidal area that would be impacted by capital dredging. The loss of the benthic community is

TR030002-000443-ES Section 8 Marine ecology.pdf:59:8.6.12 Maintenance dredging of the approach channel and berth pocket (and the associated regulator

TR030002-000443-ES Section 8 Marine ecology.pdf:60: due to capital dredging and quay construction, indirect impacts on marine ecology due to potential

TR030002-000443-ES Section 8 Marine ecology.pdf:61:capital dredging (intertidal) (intertidal) with the Tees Valley Wildlife Trust regarding making a

TR030002-000443-ES Section 8 Marine ecology.pdf:61: Controls would be implemented during dredging as ou

TR030002-000443-ES Section 8 Marine ecology.pdf:61:suspended during Low Low Negligible Reduction of sediment plumes during backhoe dredgin

TR030002-000443-ES Section 8 Marine ecology.pdf:61:dredging and achieved by using an experienced operator and limitin

TR030002-000443-ES Section 8 Marine ecology.pdf:61:dredging

TR030002-000443-ES Section 8 Marine ecology.pdf:62:capital dredging

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:5: 3.3 Modelling of dredging noise ……………………………………………………………………………….. 14

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:7:impact piling and dredging activities.

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:7:required to be dredged along with the locations of the other aspects of the facility.

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:9:from impact piling and dredging operations. This modelling was carried out using

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:9:software package to provide a comparison to INSPIRE and also to model dredging activities.

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:10:RAMSGeo has been used to model underwater noise from dredging. RAMSGeo has also been

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:12:Figure 2-2 Power Spectral Density from measurement taken of backhoe dredging and

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:12: suction dredging in Broadhaven Bay, Ireland

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:13:2.5.1 Suction dredging

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:13:Cutter suction dredging (CSD) involves the use of a rotating cutter head to loosen rock and

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:13:suction hopper dredging (TSHD) involves a suction pipe with a drag head that is dragged over

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:13:the seabed whilst dredging.

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:13:sand and silt. Figure 2-4 shows a typical time history of dredging noise. The first 40 seconds of

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:13:After this point the noise levels increase. It is thought that the dredger may have reached a

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:13:from a suction dredger, which arise from different aspects of the dredger's operation.

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:13:Figure 2-4 Pressure time history from suction dredging activity

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:13:with CSDs, despite the operation of a cutterhead. As the sediment to be dredged in the River

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:14: from suction dredging.

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:14:Dredger Specification Date and Sediment Source Transmission Author

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:14: 2.5.2 Backhoe dredging

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:14: backhoe dredger. The time history indicates considerable variation in underwater pressure levels

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:14: and illustrates the levels of noise during each part of the dredging process.

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:14: Figure 2-5 Pressure time history from backhoe dredging activity

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:14: Table 2-5 shows two reported underwater noise measurements of backhoe dredgers. Nedwell et

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:14: that occur during a backhoe dredger operation which characterise sounds produced by the New

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:14: York dredger whilst removing fractured limestone. Four of the events were linked to a single

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:14: of the dredge plant and with barge anchoring. SPL for the individual source levels of each event

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:15:Table 2-4 Summary of reported underwater noise surveys of Backhoe Dredgers

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:15:Dredger Specification Date and Sediment Source Transmission Author

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:15:similar to those presented in the previous section for dredging. One important point to highlight is

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:15:the transitory nature of underwater noise from passing vessels whereas a dredger will operate in

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:16:levels for the proposed impact piling operation and dredging activities. The modelling results

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:20:3.3 Modelling of dredging noise

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:20:RMS SPL from two different dredging operations; backhoe dredging and suction dredging. As

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:20:dredging extend to a greater range compared to the predicted ranges for a backhoe dredger.

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:20: in 10 dB increments for dredging activities (ranges based on three transects)

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:20: Backhoe Dredging Suction Dredging

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:21:from a backhoe dredger and a suction dredger, as level versus range plots. These figures show

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:21: noise across three transects from a backhoe dredger using the RAMSGeo

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:21: noise across three transects from a suction dredger using the RAMSGeo

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:25:such as dredging.

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:26:In order to assess the environmental effects that impact piling and dredging activities are likely to

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:31:impact piling and dredging related noise.

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:32:The source levels for the noise from dredging operations, using a backhoe dredger was

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:32:estimated to be 165 dB re 1 µPa @ 1 m (SPLRMS) and for a suction dredger was estimated to be

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:32:The modelled dBht(Species) sound propagation for backhoe and suction dredging are not

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:41:6.3.3 Behavioural response: backhoe and suction dredging noise

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:41:behavioural response for the species of interest from dredging activities using a backhoe dredger

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:41:and a suction dredger. Maximum, minimum and mean ranges are presented for both dredging

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:41:types. The impact ranges for backhoe dredging are all seen to be 10m or less. The impact

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:41:ranges for suction dredging are similar for all species except herring. The maximum 75 dBht

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:41:Figure 6-13 and Figure 6-14 show the perceived dredging noise level versus ranges for each

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:41: backhoe and suction dredging operations

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:41: Backhoe Dredging Suction Dredging

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:41: backhoe dredging along the three modelled transects

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:42: suction dredging along the three modelled transects

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:43:activities that have been assessed include impact piling, suction dredging and backhoe dredging.

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:43:caused. Modelling of underwater noise from dredging operations shows that noise levels are not

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:43:backhoe and suction dredging are not estimated to reach the level at which a traumatic hearing

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:43:The 90 and 75 dBht impact ranges for backhoe dredging are all seen to be 10m or less. The

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:43:impact ranges for suction dredging are similar for all species except herring. The maximum

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:45:Halcrow, (1991). Tees estuary Dredging Review. Report for Tees and Hartlepool Port Authority.

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:45:dredgers JFJ De Nul and Crisoforo Colombo. Subacoustech Report No. 602R0206.

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:46:underwater noise during dredging and pipe-laying operations in Broadhaven Bay, Co. Mayo,

TR030002-000474-Section 8 App 8.2 Underwater noise modelling report.pdf:46:by a Hydraulic Cutterhead Dredge Fracturing Limestone Rock. ERDC TN-DOER-E34.

TR030002-000658-Doc 3.8D - Indicative Elevation Solid Quay Construction.pdf:1: DREDGED

TR030002-000658-Doc 3.8D - Indicative Elevation Solid Quay Construction.pdf:1: DREDGE BERTH

TR030002-000658-Doc 3.8D - Indicative Elevation Solid Quay Construction.pdf:1: DREDGED

TR030002-000658-Doc 3.8D - Indicative Elevation Solid Quay Construction.pdf:1: DREDGE BERTH

TR030002-000253-Regulation 24 Transboundary Screening document (1).pdf:1: o quay (including dredging)

TR030002-000253-Regulation 24 Transboundary Screening document (1).pdf:2: • Able UK Seaton port (and capital dredging of Seaton

TR030002-000253-Regulation 24 Transboundary Screening document (1).pdf:2: proposed development includes dredging works in the approach

TR030002-000253-Regulation 24 Transboundary Screening document (1).pdf:2: what use will be made of the dredged material, but options

TR030002-000253-Regulation 24 Transboundary Screening document (1).pdf:3: The Scoping Report confirms that the dredging works have the

TR030002-000253-Regulation 24 Transboundary Screening document (1).pdf:3: dredging works.

TR030002-000253-Regulation 24 Transboundary Screening document (1).pdf:3: by the piling and dredging works, but has not identified any

TR030002-000253-Regulation 24 Transboundary Screening document (1).pdf:4: • offshore disposal of dredged material.

TR030002-000253-Regulation 24 Transboundary Screening document (1).pdf:5:application. The extent of the dredging works is now limited to the immediate approach

TR030002-000253-Regulation 24 Transboundary Screening document (1).pdf:5:Offshore disposal of dredged material

TR030002-000253-Regulation 24 Transboundary Screening document (1).pdf:5:The ES includes an assessment of the potential effects of offshore disposal of dredged

TR030002-000253-Regulation 24 Transboundary Screening document (1).pdf:5:material arising from capital dredging (ES Section 22: Offshore disposal of dredged

TR030002-000253-Regulation 24 Transboundary Screening document (1).pdf:5:In relation to commercial navigation, the numbers of dredging vessels transiting through

TR030002-000253-Regulation 24 Transboundary Screening document (1).pdf:5:dredged material.

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8: Dredging of the approach channel and berth pocket

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8:1.3.4 The proposed scheme requires capital dredging of the berth pocket (and approaches to the pocket) in

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8: order to allow the maximum design vessels access to the port terminal. This dredging would be

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8:1.3.5 The total volume of material to be dredged for the open quay option is estimated at up to 1,122,000m3.

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8: For the solid quay option, there is no requirement to create a stable slope and the dredge volume to

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8:1.3.6 For Phases 1 and 2, dredging of the silts would be undertaken using enclosed grabs due to elevated

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8: concentrations of contaminants within the sediment. Capital dredging of the sands and gravels is likely

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8: to be undertaken by Trailing Suction Hopper Dredger (TSHD) in Phase 1. It is envisaged that either a

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8: backhoe dredger, TSHD or Cutter Suction Dredger (CSD) could be used for dredging the clay and

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8: Use and disposal of dredged material (habitat enhancement)

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8:1.3.7 The proposed dredging would generate silts, sands, gravels, clay and rock. As noted above, the silt to

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8: be dredged during Phase 1 and 2 is contaminated. Appendix 3.1 of the ES sets out the options

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8: available for the management of contaminated dredged material.

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8:1.3.8 It is proposed that some of the (uncontaminated) sand and gravel from the capital dredging during

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8: would comprise the placement of dredged material within the lagoon to raise the bed level and provide

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8: proportion of capital dredged clay and mudstone would also be used to create a series of islands in the

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8: overall volume of material to be dredged. Other beneficial uses for this material will continue to be

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:8: sought but, for the purposes of the EIA, it has been assumed that the rest of the dredged material (with

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:9: the River Tees. It is expected that maintenance dredging requirements would be met through the

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:9: existing maintenance dredging regime.

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:13: The model was used to simulate the effects of the scheme, comprising the proposed dredging and both

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:13: dredged would represent a redistribution of the material that currently settles within the lower estuary

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:15: suspension of sediment as a result of capital and maintenance dredging and piling, and deterioration of

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:15: grab during silt dredging operations), the potential impacts of the proposed scheme on marine water

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:15: due to capital dredging, piling and reclamation (solid quay only), indirect impacts on marine ecology

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:15: smothering of benthic habitats due to the offshore disposal of dredged material.

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:15:2.5.5 The dredging that would be required to create the berth pocket and approach would result in the direct

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:15: would still be present below the dredged footprint but, in the short term, the benthic community would

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:16: be removed. Given the nature of the subtidal habitat and the fact the dredging would not result in an

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:16: increase in suspended sediment would not occur over the intertidal for any of the potential dredge

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:16:  impacts to the feeding resource due to reduced water quality (associated with dredging);

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:16:  smothering of the intertidal food resource through deposition of sediment following dredging;

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:18: noise disturbance from piling and dredging, reduced water quality due to spills and leakages, and the

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:18: direct uptake of fish and fish eggs during dredging.

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:18:2.8.5 The overriding consequence of the generation of noise during piling operations (as well as dredging

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:19:2.8.7 The proposed dredging works have the potential to result in the direct uptake of fish, fish eggs and the

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:19: within the navigation channel is likely to be influenced by maintenance dredging. The seabed in the

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:22: height is predicted adjacent to this structure due to the dredging required for the scheme. The solid

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:23:2.15.1 The capital dredging within the estuary would reduce the depth of cover overlying the Breagh Onshore

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:23: strategy of soil stiffening above the pipeline could be implemented prior to dredging being undertaken.

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:23: occurring due to dredging (e.g. heave) would reduce to a low level.

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:25:2.19 Disposal of capital dredged material

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:25: (i.e. all capital dredged material apart from the contaminated material), it is proposed that the following

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:25: quantities of dredged material would be disposed offshore at dredged material disposal sites in Tees

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:25: fisheries interests due to offshore disposal of dredged material.

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:25:2.19.3 The proposed quantity of the disposal of dredged material at the site would be significantly greater than

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:29: Construction phase emissions from the Harbour facilities (capital dredging and other plant) were not

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:32: increased suspended sediment concentration arising from capital dredging for other projects (should

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:32: they coincide with the dredging for the Harbour facilities) was predicted to be of minor adverse

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:32:3.12.2 The cumulative impact on water quality due to maintenance dredging for the Harbour facilities with the

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:32: wider maintenance dredging programme in the Tees estuary was also predicted to be of negligible

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:32:3.12.3 The dispersion of suspended sediment and deposition on the seabed during capital dredging has the

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:32: maintenance dredging requirement within the Tees. Based on this conclusion, no cumulative impact on

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:33: Prevention Guidance; use of soft start piling techniques; and use of an enclosed grab for dredging

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:35: including the MHF, NGCT, QEII Berth Development, maintenance dredging within the Tees estuary and

TR030002-000561-Doc 6.7 Environmental Statement Non Technical Summary_2 of 2.pdf:35:5.1.6 The predicted effects of the proposed port terminal and capital dredging on the hydrodynamic and

TR030002-001875-The York Potash Harbour Facilities Draft Amendment Order Final Validated (3).pdf:2: © dredging of up to 750,000 cubic metres of material from the approach channel and

TR030002-000660-Doc 3.9B - Indicative Layout - Open Quay Construction - Southern Route.pdf:1: DREDGED AREA

TR030002-000660-Doc 3.9B - Indicative Layout - Open Quay Construction - Southern Route.pdf:1: R CHAN DREDGED SIDE SLOPES

TR030002-000441-ES Section 6 Hydrology_hydrogeology_land quality.pdf:39: o Deposition of capital and maintenance dredged material within Bran Sands lagoon to create a

TR030002-000441-ES Section 6 Hydrology_hydrogeology_land quality.pdf:41:6.5.16 The placement of dredged material within Bran Sands lagoon as part of the habitat creation scheme

TR030002-000441-ES Section 6 Hydrology_hydrogeology_land quality.pdf:43: and PB1586-SK467, involve placing a relatively thin layer of dredged material over a small proportion

TR030002-000441-ES Section 6 Hydrology_hydrogeology_land quality.pdf:45: require the use of imported fill materials if insufficient suitable capital dredged material arises.

TR030002-000441-ES Section 6 Hydrology_hydrogeology_land quality.pdf:50: Testing of dredged material would ensure suitability for re

TR030002-001875-The York Potash Harbour Facilities Draft Amendment Order Final Validated (5).pdf:2: © dredging of up to 750,000 cubic metres of material from the approach channel and

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:5:Figure 11.1 Reaches of the Tees where maintenance dredging is undertaken

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:16: This would require capital dredging to create the berth pocket in order to allow access to the port terminal

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:33: G RIV DREDGED AREA

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:33: EXISTIN DREDGED SIDE SLOPES

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:34: DREDGED AREA

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:34: ISTIN DREDGED SIDE SLOPES

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:35: EXTENT OF DREDGED

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:35: DREDGED

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:35: DREDGE BERTH POCKET

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:35: DREDGE POCKET

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:35: DREDGED SLOPE

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:36: EXTENT OF DREDGED

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:36: DREDGED

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:36: DREDGE BERTH POCKET RAIL BEAM

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:36: DREDGE POCKET

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38:2.2.10 Capital dredging of the berth pocket (and adjacent approaches to the pocket) would be required in

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38: order to allow the maximum design vessels proposed access to the port terminal. This dredging would

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38: be undertaken in two phases and is linked to the phased construction of the quay. Dredging would also

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38: the Phase 2 dredging, capital dredging would be required within the approach channel in order to

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38: provide the required access for vessels in addition to the Phase 2 dredging of the berthing pocket.

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38:2.2.11 Within the area that would require dredging in the current approach channel, the existing depth of the

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38: channel downstream of this point to the mouth of the Tees. The approach channel dredging required

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38: dredging to 16m bCD (-18.85mOD) would be undertaken to create the berth pocket.

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38:2.2.12 The total volume of material to be dredged is estimated at up to approximately 1,122,000m3 to create

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38: quay option, there is no requirement to create a stable slope and the dredge volume would be

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38: Sands lagoon for waterbirds and their supporting habitats. The proposals comprise the use of dredged

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38:2.2.14 The habitat enhancement proposals would comprise the placement of capital dredged material

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38: nesting habitat for waterbirds. To create the new shallows, maintenance dredged material (mud), of up

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38: to 20cm in depth, would be placed over the capital dredged material to enhance the value of the area

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38: for feeding waterbirds. To prevent the migration of the placed maintenance dredged material from the

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38: deposition area across Bran Sands lagoon, a bund of capital dredged clay or mudstone would be

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:38: placed within the lagoon, with the maintenance dredged material to be placed behind the bund.

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:49:Marine sediment and The tidal Tees estuary between Teesmouth and the Tees Barrage and Tees Bay (an area of approximately 10.5km , incorporating the existing dredged

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:55: 172 Maintenance dredging within the Tees Estuary 0

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:55: (terminal and capital dredging)

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:58: Dredging) 126

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:69: sites due to maintenance dredging and potential impacts to bird feeding and processes

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:69: maintenance dredged material).

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:69: Effects on food resources due to reduced water quality following dredging and

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:69: deposition of sediment disrobed during dredging in intertidal areas. Effect on water

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:70: quality criteria through release of uncontaminated sediments during capital dredging activities.

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:70: There is potential for reductions in water quality associated with maintenance dredging, and

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:81:172 - Maintenance dredging In-combination effects to marine water quality and Y Y

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:81: maintenance dredging be undertaken at the same

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:81: time as the proposed dredging works associated

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:81: sediment plumes created during capital dredging

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:81: sediment plumes created during capital dredging

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:86: due to capital dredging and piling and the potential alteration of coastal processes which could impact

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:86: construction phase noise disturbance, creation of a sediment plume during capital dredging and

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:86: disturbance, creation of a sediment plume during capital dredging and changes to the

TR030002-000674-Doc 6.3 Habitats Regulations Assessment_1 of 2.pdf:86:  Maintenance dredging within the Tees Estuary, from potential effects to marine water quality

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:3: 3.6.3 Dredging 25

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:3: 3.7 Disposal of dredged material 26

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:9: All three options would require capital dredging of an approach channel to the marine

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:9: system associated with Option 3), as well as the proposed capital dredge areas for the

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:27: • Dredging an approach channel from 14.1m below Chart Datum (bCD) and

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:27: 10.4m bCD to 15.1m bCD (approximately 800,000m3 of material) and dredging a

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:27: proposed dredge footprints are provided in Section 3.6.3).

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:31: • Mobilisation (including dredgers).

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:31: • Dredging of the approach channel and berth pocket.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:31:3.6.3 Dredging

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:31: Capital dredging of the approach channel and the berth pocket at Bran Sands would be

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:31: that would require dredging and to inform the detailed design of the facility. This will

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:31: also inform the consideration of possible alternative uses for the dredged material (see

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:31: The total volume of material to be dredged from the berth pocket and approach channel

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:31: are anticipated to be approximately 548m long x 40m wide (dredged to a depth of 16m

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:31: bCD), while the approach channel would require dredging along a length of

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:31: approximately 3,560m x 150m wide (dredged to a depth of 15.1m bCD).

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:32: The results of the marine site investigation will determine which method(s) of dredging

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:32: • backhoe/grab dredger;

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:32: • cutter suction dredger; or

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:32: • trailing suction hopper dredger.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:32: dredging within the berthing pocket and approaches. The volume of maintenance

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:32: dredging required on an annual basis will be predicted during the EIA process (see

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:32: Section 4.1). It is proposed that dredging activities would be carried out 24 hours a day.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:32:3.7 Disposal of dredged material

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:32: necessary to seek alternative uses for the dredged arisings, with disposal at sea being

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:32: Alternative use of dredged material

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:32: An option being considered for the use of dredged material is to reclaim Bran Sands

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:32: addition, dredged material would be used as infill for the continuous quay (reclamation)

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:33: The engineering feasibility of reclaiming the lagoon using dredged material depends on

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:33: the nature of the dredged material (i.e. its geotechnical properties) and the volume of

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:33: Alternative uses for the dredged material will be explored through the EIA process and

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:33: Offshore disposal of dredged material

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:33: There are two active disposal sites that could potentially accept the dredged material:

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:33: historically been used for the disposal of dredged material and have received both

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:33: capital and maintenance dredgings. Tees Bay C has predominantly been used for

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:33: capital dredged material, but has received quantities of maintenance material in some

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:33: Should it not be possible to use the dredged material in a beneficial way for either

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:37: of dredging and disposal and recommends a four stage process, as follows:

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:39: HaskoningDHV, 2012a), in addition to a maintenance dredging baseline document

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:42: currents, vessel induced forces and resuspension of material by dredging operations.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:42: sedimentary regime of the estuary is likely to arise from the capital dredging of the

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:42: of sediment released from the bed and/or overflowing from the dredger. Sediments

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:42: of any related plume would be negligible compared with the dredging-related plume.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:42: The dredged material generated during the construction phase may (following

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:42: consideration of alternative uses) be disposed of at one or more offshore dredged

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:42: disposal of dredged material may have an effect on the hydrodynamic and sedimentary

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:42: licensed sites and the quantity of dredged arising under the proposed scheme is of the

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:42: in the estuarine hydrodynamics, including sedimentation into the dredged berth

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:43: of the proposed scheme (including quay structures and the dredged berth pocket and

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:43: impacts of the proposed dredging, the existing bathymetry in the berth area and

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:43: the possible placement of dredged material in the Bran Sands Lagoon or the offshore

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:43: disposal of dredged material. This is because the infill of the lagoon would not

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:43: Sediment dispersion from dredging

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:43: dredged sediment types and quantities, dredger vessels and production rates), the

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:43: the water column during the capital dredging.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:44: The scale of capital dredging proposed is unlikely to significantly alter the estuary-wide

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:44: This will be informed by dredged volume data from nearby jetties or berth pockets, and

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:44: the results will inform the prediction of future maintenance dredging requirements.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:51: from being disposed of to sea. As a result, a licence was issued for disposal of dredged

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:51: that is proposed to be dredged as part of the QEII jetty refurbishment project. In

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:51: be taken from the proposed dredge area. The vibrocores sampled down to 4m below

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:53: constituent of the proposed dredge was licensed for offshore disposal; the overlying

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:53: NGCT, which proposed dredging of 4.8million m3, did not, however, predict any impacts

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:53: on the designated bathing waters associated with the dredging plume.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:53: Reduced water quality associated with sediment disturbance during dredging and piling

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:53: The potential exists for sediment disturbance / re-suspension during dredging of the

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:54:Disposal of dredged material at the offshore disposal sites would cause a temporary and

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:54:dredging, the effect of the disposal of fine material at the disposal sites is of minor

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:54:significance. The capital dredging was predicted to result in far lower rates of

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:54:introduction of fines to the disposal sites than occurs during maintenance dredging.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:54:dredging will be lower. There would be some short-term build-up of fine sandy sediment

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:54:accumulation of coarser sediments arising from the dredging of stiff clay was also

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:54:Increased suspended sediment concentration due to maintenance dredging

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:54:During the operational phase, maintenance dredging at the berth would be required to

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:54:maintain the advertised dredge depth. Such maintenance dredging is likely to lead to an

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:54:included within PD Port’s wider maintenance dredge campaigns.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:55: proposed approach channel (where dredging is envisaged). The sampling sites and

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:55: • Cefas Guideline Action Levels for the disposal of dredged material (Cefas,

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:55: material to be dredged will inform this assessment.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:55: The main form of mitigation to limit sediment plume generation due to dredging is

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:55: achieved through the selection of the dredging method. The use of an enclosed

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:55: backhoe dredger is the most acceptable method as this would result in a significantly

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:55: suction dredger or trailing suction hopper dredger. The selection of an appropriate

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:55: dredging method is a combination of technical, economic and environmental factors and

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:56: areas subject to regular dredging and sediment removal. Analysis of macrobenthic data

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:56: dredging.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:57: Direct loss of benthic habitat as a result of capital dredging and piling

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:57: The dredging required to deepen the approach channel and create a berth pocket would

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:57: result in the direct loss of benthic community within the footprint of the dredging. This

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:57: removed from within the dredged areas. A total dredge volume of 1.05 million m3 is

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:57: berth pocket and 800,000m3 dredged from the approach channel. The benthic habitat

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:57: within the dredge footprint for the berth pocket is likely to be relatively undisturbed, given

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:57: that the area is not subject to regular disturbance from maintenance dredging.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:59:not dredged by PD Ports and, as such, the habitat will not have been subject to regular

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:59:suspended sediment during dredging and deposition following dredging

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:59:biological oxygen demand. Sediment would disperse from the dredge location and

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:60:the seabed at the locations where sediment settles out of suspension. Dredging is also

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:60:the location of the dredging activity, with the volume of sediment released into the water

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:60:column being influenced by the dredging method employed. Beyond the immediate

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:60:vicinity of the dredging, dispersion and dilution of the sediment plume would occur and

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:60:any increase in TSS would be less significant than at the dredge site.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:60:Capital dredging is a temporary activity which (based on previous modelling

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:60:disturbance is likely to be generated during piling and dredging activities, required as

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:60:Smothering of benthic habitat due to disposal of dredged material

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:60:Dredged material is proposed to be disposed of within licensed offshore disposal sites.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:60:Given that the disposal sites are licenced to accept dredged material, no unacceptable

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:60:ecological impacts are anticipated from the offshore disposal of dredged material.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:61: scheme). The ES for the NGCT scheme also concluded that capital dredging will result

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:61: maintenance dredging. Therefore, the physical effects of the material disposed at the

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:61: site during capital dredging were considered to be lower. It was predicted that there

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:61: dredging of stiff clay will occur on the seabed.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:61: dredged material is unlikely to result in an unacceptable impact; however, this will be

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:61: dredging.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:65: The dredging required for the proposed scheme has the potential to affect food

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:65: deposition of fine sediment disturbed by dredging.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:65: by other birds species for roosting. The placement of dredged material to partially

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:65: During the operational phase, there is likely to be an increased maintenance dredge

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:65: dredging (see Section 5.1.5). This modelling work will be used to predict the effects of

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:71: Direct uptake and disturbance of fish during dredging

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:71: Depending upon the method employed, dredging operations have the potential to result

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:71: disturbance caused by the dredge head of a cutter suction dredger or the bucket of a

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:71: backhoe dredger are likely to cause the majority of fish to move away from the

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:71: immediate dredge area, thereby avoiding the likelihood of direct uptake. The proposed

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:71: method of dredging for the proposed scheme has not yet been determined.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:71: The capital dredging required has the potential to indirectly impact on fish species

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:71: lower concentrations can result in sub-lethal stress or avoidance reactions. Dredging

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:71: There is potential for the dredging and piling operations to generate underwater noise,

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:71: of the seabed. The proposed capital dredging has potential to adversely impact on

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:71: dredge footprint. Given that the proposed berth pocket is not routinely maintenance

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:71: dredged, there is potential for a diverse benthic community to be present which may

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:72: The main mitigation measure to limit sediment plume generation due to dredging is the

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:72: selection of the dredging method. The use of an enclosed backhoe dredger is the most

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:72: dredger or trailing suction hopper dredger. The selection of an appropriate dredging

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:79: • Disturbance to marine ecological species from piling and dredging (e.g. fish,

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:79: movements during dredging and piling activities.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:79: involved in maintenance dredging activities) and vehicles used to transport site

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:81: material, potentially indicative of a former land surface in previously undredged areas.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:81: Royal HaskoningDHV are unaware of the dredge footprint (berth pocket and dredge

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:82: The proposed dredge area for the berth pocket associated with the proposed scheme is

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:82: outside the limits of the existing dredged approach channel and, therefore, there is the

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:82: currently dredged channel and, as such, the potential for encountering archaeological

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:83: Tees Bay. The approach channel has a dredged depth of 15.4m below CD from Tees

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:83: the entrance. The current dredge depths of the channel are shown in Figure 5.8.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:84: The proposed scheme requires approximately 1.05 million m3 of material to be dredged

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:84: The presence of the dredger and construction plant has potential to result in conflicts

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:85:Figure 5.8 Dredged depths within the Tees estuary

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:86: Dredging operations at the proposed berth will not be specifically considered because

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:86: the proposed berth pocket dredging will fall within the construction exclusion zone.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:86: Dredging of the approach channel would impact the operation of Port and a specific plan

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:87: system and dredging to create a berth pocket and required depth in the approach

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:87: channel. Such dredging would increase the depth of water adjacent to the river bank.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:90: capital dredging. Impacts could also arise during the operational phase due to

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:90: dredging activities for the approach channel and berth pocket.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:91: • Infilling of the lagoon with dredged material – this may partially affect the

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:91: all times and limiting the dredge footprint to reduce the potential for impacts on surface

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:96: recreation activities during the construction phase due to the presence of the dredger

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:96: dredged approach channel and, therefore, this does not represent a significant change

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:98: • Able UK Seaton port (and capital dredging of Seaton Channel).

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:100: • Dredging to create a berthing pocket and deepen the approach channel

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:100: • Maintenance dredging required (water quality, mitigation measures in place).

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:100: Subject to consideration of alternative uses, all material dredged from the seabed would

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:100: the assessment of the potential impact of dredging and disposal on the requirements of

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:103:Hydrodynamic • Creation of a sediment plume during dredging and piling works. • Use of TELEMAC-3D flow model to

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:103:sedimentary approach channel. released during capital dredging.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:103: dredged berth pockets and approach channel.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:103:Marine • Reduced water quality associated with dredging, piling and • Recovery of sediment samples at th

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:103: construction works. proposed dredge footprints.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:103: • Reduced water quality due to offshore disposal of dredged • Sediment quality results would be c

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:103: material to be dredged will inform this

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:104:Marine ecology • Direct loss of benthic habitat due to dredging and piling. • Benthic invertebrate surveys propos

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:104: • Potential for smothering of seabed following dredging and

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:104: areas following dredging.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:104:Natural fisheries • Direct uptake and disturbance of fish during dredging • A desk based assessment is propos

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:104: construction and capital dredging. • A requirement to collect new primary

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:105: and dredging (e.g. fish, marine mammals, birds). • Assessment of road traffic noise imp

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:105: and dredging (e.g. fish, marine mammals, birds).

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:105: construction due to presence of dredger and construction • Findings of the potential effects on

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:106: • Impacts on water quality at abstraction points during dredging. section.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:107: Cefas (2010). Cefas Action Levels for the assessment of suitability of dredged material

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:107: Environment Agency (2012). Clearing the waters. Marine Dredging and the Water

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:107: Halcrow, (1991). Tees estuary Dredging Review. Report for Tees and Hartlepool Port

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:108:HR Wallingford (1992). Tees and Hartlepool Port Authority. Review of Dredging. EX

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:108:Royal Haskoning (2011). Tees Maintenance Dredging Annual Review 2009 - 2010.

TR030002-000074-131202_TR030002_York Potash Harbour Facilities_Scoping Report.pdf:108:Royal HaskoningDHV (2012b). Tees Maintenance Dredging Baseline Document

TR030002-000106-141120_TR030002_Teleconference meeting note_PINS and MMO.pdf:2:are waiting for the developer to update their proposals for dredging and disposal. The

TR030002-000106-141120_TR030002_Teleconference meeting note_PINS and MMO.pdf:2:is not clear when this information will be provided. Dredging and disposal at sea are

TR030002-000782-151104 TR030002 Natural England Response to ExA's second round of questions.pdf:12: shallow water area with additional maintenance dredged material, and

TR030002-000516-Doc 6.6 App 6.6 Peak construction employees.pdf:2: GENPOR.General Labour Port Dredging Civils Construct Port Marine - Dredging - Labour 0 Dredging - Civils 0 0 0 0 0 0 0 0 0 0

TR030002-000516-Doc 6.6 App 6.6 Peak construction employees.pdf:3: GENPOR.General Labour Port Dredging Civils Construct Port Marine - Dredging - Labour 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

TR030002-000516-Doc 6.6 App 6.6 Peak construction employees.pdf:4: GENPOR.General Labour Port Dredging Civils Construct Port Marine - Dredging - Labour 0 0 0 0 0 0 0 0 0 0 0

TR030002-000742-SABIC UK Petrochemicals Limited 2.pdf:3: 3.2.3 The potential effect of dredging and the building of the quay on the integrity of the

TR030002-000742-SABIC UK Petrochemicals Limited 2.pdf:13:6.1 Dredging and Quay

TR030002-000742-SABIC UK Petrochemicals Limited 2.pdf:13: 6.1.1 The Objectors are concerned about the effect of Work No. 1 (dredging) and Work No.

TR030002-000742-SABIC UK Petrochemicals Limited 2.pdf:13: of the current pipeline and then that monitoring took place throughout the dredging

TR030002-000742-SABIC UK Petrochemicals Limited 2.pdf:13: 6.2.1 The Objectors are also concerned about the potential effect of the dredging and the

TR030002-000742-SABIC UK Petrochemicals Limited 2.pdf:13: 6.2.2 In terms of the extent of dredging, Work No. 1 is clearly very wide, covering almost the

TR030002-000742-SABIC UK Petrochemicals Limited 2.pdf:102: 3.2.3 The potential effect of dredging and the building of the quay on the integrity of the

TR030002-000836-DEA UK SNS Limited - Deadline 4 Submission.pdf:11: (f) details of the method location and extent of any dredging, an technical assessment of the

TR030002-000836-DEA UK SNS Limited - Deadline 4 Submission.pdf:11: likely effect of the dredging on the protected crossings and any mitigation measures which are

TR030002-000836-DEA UK SNS Limited - Deadline 4 Submission.pdf:13:13. (1) Where excavation of trenches (including excavation by dredging) adjacent to a pipeline affects its

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:6: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:6: “dredging” means using any device to move material (whether or not suspended in water) from

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:6: “gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:8: © dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:8: (b) dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:8: “sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:8: “silt” means dredged materials with a diameter of at least 31.25 and less than 62.5 micrometres;

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:29: (3) dredging of approach channel and berth pocket; and

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:34:and providing fordredging works in the identification and reportingharbour area in the vicinity of

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:36: 1 1, 2, 4 and 9 (i) dredging;

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:36: 2, 3 1 and 9 (i) dredging; and

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:36: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:36: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:37: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:38: 12 and 13 1, 4, 5, 9 and 10 (i) dredging;

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:42: 1 1, 2, 4 and 9 (i) dredging;

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:42: 2, 3 1 and 9 (i) dredging; and

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:42: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:42: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:44: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:45: 12 and 13 1, 4, 5 and 9 (i) dredging;

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:52: Capital dredging and disposal

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:52: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:52: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:52:Dredged material type Open quay (m3) Solid quay (m3)

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:52: (3) For phases 1 and 2, the dredging of the contaminated silts will be undertaken using enclosed

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:52: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing Suction

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:52:Hopper Dredger (TSHD).

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:53: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) must be undertaken

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:53:using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2, dredging of sands

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:53:and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:53: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C (TY

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:53:150)offshore dredged material disposal sites—

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:56: Capital dredging, disposal conditions and debris

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:56: 34.—(1) The undertaker must agree a capital dredge and disposal strategy with the MMO at least

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:56: (2) If any disposal or dredging activities are to take place after 1st October 2017 then—

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:56: months prior to that dredging or disposal activity being carried out;

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:56: validated by the MMO at least six weeks prior to the dredging or disposal activity being

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:56: © the dredging and disposal activity must not be carried out without the consent of the MMO.

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:56: 35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:56: 36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:56: 37. The undertaker must ensure that any man-made material is separated from the dredged

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:56:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:77: © in relation to works other than dredging any part of the authorised development—

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:77: (e) in relation to dredging any part of the authorised development which—

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:78: (g) details of the method location and extent of any dredging, ana technical assessment of the

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:78: likely effect of the dredging on the protected crossings and any mitigation measures which

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:81: 12.15.—(1) (1) Where excavation of trenches (including excavation by dredging) adjacent to a

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:97: (e) commencing any dredging operation,

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:97:dredging operation or altered drawings.

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:97: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:97:paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:98:Capital dredge and disposal Schedule 5, paragraph 3534 The whole strategy

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:100: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:103: may reasonably be put in dredging the river to remove the sedimentation or in making good

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:103: (b) carry out the necessary dredging at its own expense and subject to the prior approval of the

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:105:under any duty to dredge the approaches from the river channel to the quay, or the berthing pocket

TR030002-000894-160113_TR030002 Draft DCO (Comparite with Deadline 4 Draft DCO (Document 4.1C)).pdf:105: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the Tees

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:10: • a marine terminal at Bran Sands, including dredging works

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:11: • a marine terminal at Bran Sands, including dredging works

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:11: • a marine terminal at Bran Sands, including dredging works

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:15:2.38 Dredging of an approach channel to the marine terminal and a

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:15: Scoping Report describes the anticipated dredging process. The

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:16: total volume of material estimated to be dredged in 1.05million m³

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:16: of material. The berth pocket channel requiring dredging measures

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:16: by 150m (w), dredged to a depth of 15.1 below Chart Datum

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:17:2.53 The dredging method has yet to be determined and three options

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:17: • Backhoe/grab dredger

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:17: • Cutter section dredger; and

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:17: • Trailing suction hopper dredger.

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:17: of the dredged material. This includes the use of the material to

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:18: dredging would be required during the operation of the

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:18: the frequency of the dredging is not provided within the Scoping

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:22:2.87 The SoS notes that maintenance dredging will be required during

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:28: associated with dredging, the ES should also provide information

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:29:3.29 In addition to the dredging works required to construct the port

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:29: maintenance dredging works that are intended to be carried out

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:29: spoil dredged as part of these maintenance works.

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:31:3.42 The Scoping Report states that maintenance dredging is likely to

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:31: form part of PD Ports’ wider maintenance dredge campaigns, as

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:31: The cumulative impact of both the dredging associated with the

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:31: proposed port facility and the wider dredging works undertaken by

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:31: dredging, and lighting.

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:31: information in the ES regarding the dredging and piling works in

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:32: traffic and dredging works during construction and operation.

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:35: and vibration impacts associated with the piling and dredging

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:35:3.81 The Scoping Report acknowledges that the berth pocket dredging

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:35: dredging and therefore there is the potential for unknown

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:35: arising from the dredging activity (see Appendix 2 of this Opinion).

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:63:ii) that ‘Royal Haskoning DHV are unaware of the dredge footprint (berth pocket and dredge

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:64:In addition, the three proposed options will all require capital dredging of an approach

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:64:be put in place to cover the potential archaeological impacts of the dredging activities. The

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:64:for the recording of any historic assets dredged up during any type of marine-based work.

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:68:proximity of the dredge.

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:68:Dredging

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:68:Dredging method to be discussed and agreed with Environment Agency in advance of works to

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:68:1st December to 31st March preferred dredge window as main salmonid migration is mid‐April

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:68:to end of November and the dredge may cause increase in turbidity and drop in dissolved

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:69:The results should be provided of sediment quality testing from the berth pocket and dredge

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:69:waste material and not just the dredged material. This should detail:‐

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:80:5. The proposed method of dredging is yet to be decided. For the EIA, if a method is still

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:80:6. It is not clear whether consent for the periodic maintenance dredging within the

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:80: sample analysis for maintenance dredging may be required depending on the results

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:80: Disposal of dredged material

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:80: maintained by dredging operations. If it is, the ES must contain details of the

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:80: maintenance dredging operations. The developer should also consult stakeholders

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:80: who may be affected by dredging operations.

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:80: dredged material: Tees Bay A (TY160) and Tees Bay C (TY150). TY160 has

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:80:12. The MMO welcomes the commitment to seek alternative uses of the dredged

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:81:17. The Scoping Report states that maintenance dredging may be required and that this

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:81: sediment regime and cause additional sedimentation which could increase dredging

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:82: should include the dredging operations.

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:82: effects of dredging and piling concurrently on marine receptors.

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:91:  An appraisal of dredging techniques and their associated impacts on the marine

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:91: should be presented. This should cover disposal options for the dredged material,

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:91: contamination investigations, maintenance dredging for the lifetime of the project and

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:91: dredging period (proposed at 24 hours/day). We would welcome consideration of alternative

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:91: uses for dredged material to protect or increase estuary habitats, avoiding loss of SPA

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:91: investigation into the use of dredged material to create sand banks in the area (Biodiversity

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:91:  The report does not mention the impact on tidal prism that could result from capital dredging

TR030002-000072-140113_TR030002_York Potash Harbour Facilities_Scoping Opinion Report.pdf:103:update in dredged quantities.

TR030002-000360-Rule 6 letter.pdf:6: contaminated silt from capital dredging.

TR030002-000275-P D Teesport Limited.pdf:6: (e) commencing any dredging operation, Deleted: .

TR030002-000275-P D Teesport Limited.pdf:6: or dredging operation or altered drawings.

TR030002-000275-P D Teesport Limited.pdf:6: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-000275-P D Teesport Limited.pdf:6:paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-000275-P D Teesport Limited.pdf:7: Capital dredge and disposal Schedule 5, paragraph 35 The whole strategy

TR030002-000275-P D Teesport Limited.pdf:9: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000275-P D Teesport Limited.pdf:12: may reasonably be put in dredging the river to remove the sedimentation or in making

TR030002-000275-P D Teesport Limited.pdf:12: (b) carry out the necessary dredging at its own expense and subject to the prior approval of

TR030002-000275-P D Teesport Limited.pdf:13:under any duty to dredge the approaches from the river channel to the quay, or the berthing pocket at

TR030002-000275-P D Teesport Limited.pdf:14: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the Tees

TR030002-000670-Doc 6.1 Consultation Statement - Main Text.pdf:7: course of the dredging activities, YPL have addressed these issues

TR030002-000670-Doc 6.1 Consultation Statement - Main Text.pdf:8: • 89% support the proposed river dredging required to develop the

TR030002-000670-Doc 6.1 Consultation Statement - Main Text.pdf:56: including the proposed dredging.

TR030002-000670-Doc 6.1 Consultation Statement - Main Text.pdf:58: associated dredging requirements, the erection of surge bins, and

TR030002-000670-Doc 6.1 Consultation Statement - Main Text.pdf:61: currently in the public domain. The proposal to dredge a section of the

TR030002-000670-Doc 6.1 Consultation Statement - Main Text.pdf:63: dredging, although it noted that the PER provided assurances that

TR030002-000670-Doc 6.1 Consultation Statement - Main Text.pdf:63: and the implications of this for the disposal of dredged material. In this

TR030002-000670-Doc 6.1 Consultation Statement - Main Text.pdf:63: proposed type of dredger and the timings of dredging were also noted

TR030002-000670-Doc 6.1 Consultation Statement - Main Text.pdf:67: course of the dredging activities.

TR030002-000670-Doc 6.1 Consultation Statement - Main Text.pdf:68: dredging activities.

TR030002-000670-Doc 6.1 Consultation Statement - Main Text.pdf:76: dredging required to develop the harbour facilities, whilst only 2%

TR030002-000670-Doc 6.1 Consultation Statement - Main Text.pdf:79: marine ecology and nature conservation, dredging effects on

TR030002-001875-The York Potash Harbour Facilities Draft Amendment Order Final Validated (4).pdf:2: © dredging of up to 750,000 cubic metres of material from the approach channel and

TR030002-000755-Document 4.2A Draft Explanatory Memorandum (Tracked).pdf:7: ii. dredging of the approach channel and berth pocket;

TR030002-000755-Document 4.2A Draft Explanatory Memorandum (Tracked).pdf:19: This is the dredging of the approach channel and berth pocket and the demolition

TR030002-000755-Document 4.2A Draft Explanatory Memorandum (Tracked).pdf:20:involve the placing of dredged materials into the lagoon to create shallow water

TR030002-000755-Document 4.2A Draft Explanatory Memorandum (Tracked).pdf:22:  Dredging of material from the approach channel and berth pocket;

TR030002-000755-Document 4.2A Draft Explanatory Memorandum (Tracked).pdf:22:  Placement of dredge material within Bran Sands Lagoon (habitat

TR030002-000755-Document 4.2A Draft Explanatory Memorandum (Tracked).pdf:22:  Dredging of material from the approach channel and berth pocket;

TR030002-000755-Document 4.2A Draft Explanatory Memorandum (Tracked).pdf:23: conditions in relation to the quay and dredge area in the event that

TR030002-000107-141128_TR030002_Teleconference meeting note_PINS and Applicant.pdf:2:The applicant confirmed that capital dredging would be required in the berth pocket to

TR030002-000107-141128_TR030002_Teleconference meeting note_PINS and Applicant.pdf:2:dredging would be required to assist vessel movements. However, capital dredging

TR030002-000107-141128_TR030002_Teleconference meeting note_PINS and Applicant.pdf:2:that some of the dredged material was likely to be used for the habitat enhancement

TR030002-000107-141128_TR030002_Teleconference meeting note_PINS and Applicant.pdf:2:works in Bran Sands lagoon. Some of the dredged material may be contaminated and

TR030002-000107-141128_TR030002_Teleconference meeting note_PINS and Applicant.pdf:3:to disposal of dredged material into the Bran Sands Lagoon. This material is likely to

TR030002-000107-141128_TR030002_Teleconference meeting note_PINS and Applicant.pdf:3:be a mix of capital dredging obtained during construction of the harbour facility and

TR030002-000107-141128_TR030002_Teleconference meeting note_PINS and Applicant.pdf:3:material obtained during the maintenance dredging of the Tees. The applicant

TR030002-001875-The York Potash Harbour Facilities Draft Amendment Order Final Validated (2).pdf:2: © dredging of up to 750,000 cubic metres of material from the approach channel and

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:1:22 OFFSHORE DISPOSAL OF DREDGED MATERIAL

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:1:22.1.1 As discussed in Section 3.1, the total quantity of material to be dredged during Phase 1 and Phase 2 of

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:1: solid quay would involve capital dredging of approximately 814,000m3.

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:1: enhancement. Further options for the beneficial use of the dredged arisings have been investigated but,

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:1: cannot be disposed offshore, it is proposed that the following maximum quantities of dredged material

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:1: would be disposed at the capital offshore dredged material disposal site in Tees Bay (Tees Bay C) if

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:1:22.1.5 Although the proposed scheme involves the use of dredged material for habitat enhancement

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:1: overall volume of material proposed to be dredged. The assessment of potential impacts with regard to

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:1:22.1.6 This section discusses the issues relating to the disposal of material arising from capital dredging.

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:1:22.2 Modelling of the dispersion of capital dredged material

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:1:22.2.1 HR Wallingford undertook an assessment of the potential dispersion of capital dredged material

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:1: associated with the proposed dredge and disposal operations at Tees Bay C. The assessment of the

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:1: release of sediment from the offshore disposal site included consideration of a series of dredging

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:1: scenarios used to simulate the release of fine sediment from capital dredging. Three types of sediment

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:2:22.2.2 The in-situ sediment with the highest proportion of fine sediment used in the dredging plume

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:2: was assumed to be dredged by a TSHD. The HR Wallingford dredger production model was used to

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:2:22.2.3 The distance from the dredge site to the disposal site suggests a load would be placed at the disposal

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:3:22.2.10 The TSHD is calculated to make 32.5 dredge/disposal cycles per week, with 7,850 TDS to be deposited

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:3: containing 5,430 TDS. The dredger production model suggested that the load for either dredge plant

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:4: anticipated placement rate for the proposed dredge material disposal is estimated as 80,000m3/week

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:5: result of the offshore disposal of dredged material and no mitigation measures are considered to be

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:5:22.3.6 In 2010 CEFAS undertook the ‘SLAB5’ dredged material disposal site sampling survey at a number of

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:5:22.3.7 The proposed disposal of dredged material at the site would be significantly greater than the rate of

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:6: would be confined to the disposal area (an area designated for the disposal of dredged material).

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:6:22.3.10 During the disposal operation, the TSHD or disposal barges would transport dredged material from the

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:6: dredge area to the Tees Bay C disposal site. Consequently, there is potential for conflict with other

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:6:22.3.11 The potential impact of dredging activity has been assessed as part of the assessment of the impact of

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:6: measures proposed. The disposal operations are linked to the dredging task and would require regular

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:6: movements of dredging plant between the dredge site and the disposal site, via the navigation channel.

TR030002-000457-ES Section 22 Offshore disposal of dredged material.pdf:6: movements associated with the disposal of dredged material.

TR030002-000560-Doc 6.7 Environmental Statement Non Technical Summary_1 of 2.pdf:4: 2.19 Disposal of capital dredged material …………………………………………………………………………….. 53

TR030002-000560-Doc 6.7 Environmental Statement Non Technical Summary_1 of 2.pdf:8:  A port terminal on the southern bank of the Tees estuary (with a quay and deepening (dredging) of

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:8:requires capital dredging of contaminated silt; sands and gravels; and geological material (Mercia

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:8:dredged’ (i.e. wet). It is proposed that the contaminated silt would be removed by barge to an off-site

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:8:proposed dredge area provided one or more sample that exceeded the hazardous waste thresholds.

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:8:Therefore the silt should be dealt with as a hazardous waste. All movements of the silt from the dredge

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:9: This option would not involve any double-movement of the silt from the dredge area for treatment

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:10:To avoid significant risk associated with managing the contaminated silt in line with the dredging

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:12: requires capital dredging of contaminated silt; sands and gravels; and geological material (Mercia

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:13:1.2.3 Capital dredging of the berth pocket (and approaches to the pocket) is required in order to allow the

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:13: maximum design vessels access to the port terminal. This dredging would be undertaken in two phases

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:13:1.2.4 The contaminated silt has been classified as a hazardous waste when dredged3. This classification only

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:13: applies to the silt component of the dredged material.

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:13:1.2.6 For Phases 1 and 2, it is proposed that dredging of the silts would be undertaken using enclosed grabs,

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:13: contaminated silt would require dredging by this method for the open quay configuration, and 66,000m3

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:13:1.3.2 The open quay structure option would not require the use of any dredged material for construction

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:15: The contaminated silt would be exported ‘as-dredged’ from the dredging area to the waste

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:15: management facility. The dredging contractor would be responsible for ensuring that the waste

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:15: contaminated silt before it is dredged and sent to that facility.

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:15:2.2.11 After the dredged silt has been treated to meet the defined engineering specification, in accordance

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:17:  This option would not involve any double-movement of the silt from the dredge area for treatment

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:19: cost for each stage of managing dredged contaminated silt from the River Tees on land, incorporating

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:20:3.2.6 Augean are currently permitted to wash, centrifuge, filtration / separation and stabilise dredging wastes

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:24: potentially use the dredged material. A shortlist of such developments could then be used as a basis for

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:26: relation to developments which may be able to receive the dredged material, both within and outside

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:26: what might be constructed simultaneously with the proposed dredging works. The only

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:27: sensible destination for the dredged material in accordance with the proximity principle.

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:28: treated material. A number of developments that could potentially receive the dredged material have

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:29:  This option would not involve any double-movement of the silt from the dredge area for treatment

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:30:5.2.2 These costs are based on mass (£/tonne). To identify indicative costs based on the volume dredged

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:31:5.3.2 To avoid significant risk associated with managing the contaminated silt in line with the dredging

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:34:Subject: Dredging works project

TR030002-000704-Applicant response to First Questions - Appendix 6.pdf:34:We are currently permitted to wash, centrifuge (filtration / separation and stabilize dredging wastes at our Port

TR030002-000435-ES Section 1 Introduction.pdf:1: x A port terminal on the southern bank of the Tees estuary (with capital dredging of an associated

TR030002-000483-Section 12 App 12.3 Construction Traffic Management Plan.pdf:71: GENPOR.General Labour Port Dredging Civils Construct Port Marine Dredging Labour 0 Dredging - Civils 0 0 0 0 0 0 0 0 0 0

TR030002-000483-Section 12 App 12.3 Construction Traffic Management Plan.pdf:72: GENPOR.General Labour Port Dredging Civils Construct Port Marine Dredging Labour 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

TR030002-000483-Section 12 App 12.3 Construction Traffic Management Plan.pdf:73: GENPOR.General Labour Port Dredging Civils Construct Port Marine Dredging Labour 0 0 0 0 0 0 0 0 0 0 0

TR030002-000756-Document 8.3 Appendix 5 - Shipping Notes Part 3.pdf:1:construction related issues, including dredging, were considered to be in a separate exercise.) The FSA

TR030002-000756-Document 8.3 Appendix 5 - Shipping Notes Part 3.pdf:2:construction related issues, including dredging are to be considered in a separate exercise. In order to

TR030002-000756-Document 8.3 Appendix 5 - Shipping Notes Part 3.pdf:8: Dredging activities and Survey activities (water-side) respectively.

TR030002-000756-Document 8.3 Appendix 5 - Shipping Notes Part 3.pdf:14: Ongoing reviews on capacity of pilots/tugs/boatman Maintenance dredging

TR030002-000756-Document 8.3 Appendix 5 - Shipping Notes Part 3.pdf:16: c Dredging activities Limited manoeuvrable dredging vessel Ship-dredging vessel collision Requirement for proposed construction operations to be subject to

TR030002-000756-Document 8.3 Appendix 5 - Shipping Notes Part 3.pdf:16:d Survey activities (water-side) Limited manoeuvrable dredging vessel Ship-survey vessel collision Requirement for proposed construction operations to be subject to

TR030002-000756-Document 8.3 Appendix 5 - Shipping Notes Part 3.pdf:16:g Settlement, sedimentation Damage to onshore structures due to ground Soil surveys, geotechnical analysis Dredging

TR030002-000773-York Potash Ltd (4).pdf:7: assist in DEA’s concerns over dredging the Applicant undertook to further explain

TR030002-000773-York Potash Ltd (4).pdf:7: the dredging position and that explanation is contained at Appendix 3 to this

TR030002-000773-York Potash Ltd (4).pdf:9: dredging, the Applicant offered to provide a note of clarification in relation to

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:7: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:7: “dredging” means using any device to move material (whether or not suspended in water) from

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:7: “gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:8: © dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:9: (b) dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:9: “sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:9: “silt” means dredged materials with a diameter of at least 31.25 and less than 62.5 micrometres;

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:29: (3) dredging of approach channel and berth pocket; and

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:35: 1 1, 2, 4 and 9 (i) Dredging;

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:35: 2, 3 1 and 9 (i) Dredging; and

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:35: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:35: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) Dredging;

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:36: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) Dredging;

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:37: 12 and 13 1, 4, 5, 9 and 10 (i) Dredging;

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:40: 1 1, 2, 4 and 9 (i) Dredging;

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:41: 2, 3 1 and 9 (i) Dredging; and

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:41: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:41: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) Dredging;

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:42: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) Dredging;

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:43: 12 and 13 1, 4, 5 and 9 (i) Dredging;

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:50: Capital dredging and disposal

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:50: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:50: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:50:Dredged material type Open quay (m3) Solid quay (m3)

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:50: (3) For phases 1 and 2, the dredging of the contaminated silts will be undertaken using enclosed

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:50: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing Suction

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:50:Hopper Dredger (TSHD).

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:51: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) will be undertaken

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:51:using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2, dredging of sands

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:51:and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:51: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C (TY

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:51:150)offshore dredged material disposal sites—

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:54: Capital dredging, disposal conditions and debris

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:54: 34. The undertaker must agree a capital dredge and disposal strategy with the MMO at least 4

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:54: 35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:54: 36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:54: 37. The undertaker must ensure that any man-made material is separated from the dredged

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:54:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:80: (e) commencing any dredging operation,

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:80:dredging operation or altered drawings.

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:80: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:80:paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:81:Capital dredge and disposal Schedule 5, paragraph 35 The whole strategy

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:83: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:86: may reasonably be put in dredging the river to remove the sedimentation or in making good

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:86: (b) carry out the necessary dredging at its own expense and subject to the prior approval of the

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:87:under any duty to dredge the approaches from the river channel to the quay, or the berthing pocket

TR030002-000754-Document 4.1A Draft DCO (Clean).pdf:88: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the Tees

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:2: Construction and dredging  13

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:6: significant regional and national • Dredging – allowing sufficient berth

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:12: The quay deck level will be approximately effect being that the Tees would have result in less dredging of the Tees

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:12: level of dredging in order to clear

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:13:AND DREDGING

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:13:CONSTRUCTION DREDGING matches that of the remainder of the

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:13:to construct the proposed harbour it would be necessary to dredge an area the estuary and the proposed quay

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:13:expected in July 2018. Phase 2 would be channel. Dredging involves the removal bCD). At the docking area, along the

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:13: accommodate the proposed ships Dredging of the approach channel would

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:13:There is also potential for some dredging process would be removed require further dredging than the closed

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:13:the site on barges using the River Tees another part of the estuary, this process Most dredging would be carried out as

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:13:via an existing jetty. is known as capital dredging. part of the construction process,

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:13: The necessary dredging would include however some would be required as part

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:13: enter the quay area safely. The dredging build-up of river sediment in the quay

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:13: CONSTRUCTION AND DREDGING

TR030002-000676-Doc 7.2 - Summary of Proposals Document.pdf:13: DCO APPLICATION BOUNDARY DREDGING ENVELOPES CONVEYOR OPTIONS QUAY

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:6:The EIA should provide results of sediment quality testing from the berth pocket and dredge channel. Section 7.4

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:7:An appraisal of dredging techniques and their associated impacts on the marine environment in relation to water quality Section 7.5

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:7:the fate of dredged spoil. Monitoring of sediment levels needs to be agreed to allow for background and threshold levels

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:7:A full assessment of impacts due to dredging will be needed in the ES. Sections 7.

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:8: which effects are predicted to occur (e.g. sediment plumes generated during capital dredging and

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:9: x Cefas Guideline Action Levels for the disposal of dredged material (Cefas, 2000); and,

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:9: of dredged material for disposal at sea, but are not themselves statutory standards. Selected Action

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:10:Post dredging monitoring of Seal Sands should be taken Noted. Not applicable.

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:10:new deposits as a result of dredging activities. If dredging is

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:10:representative view of the dredged area. relocation of sampling locations 2 and 4.

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:11:dredged at each sample location. Cefas, that sam

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:12: considered to be unsuitable for disposal at sea. Dredged material with contaminant concentrations

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:13: order to characterise the area that was proposed to be dredged as part of the QEII berth

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:14: accepted for disposal to sea and only the Mercia mudstone constituent of the proposed dredge was

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:18: L Twr Dredge Area Envelope

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:20: Re-suspension of sediment during dredging and piling

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:20: dredging to deepen a section the approach channel and to create a berthing pocket adjacent to the

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:20: proposed port terminal. For the open quay option, dredging of the intertidal area would also be

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21:7.5.4 As discussed in Section 3, an enclosed grab is proposed for dredging of the contaminated sediment

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21: sediment release from this method of dredging.

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21:7.5.5 The dredging of the geological deposits underlying the contaminated sediment would be undertaken

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21: using a backhoe, CSD or TSHD (or a combination of all three types of dredging plant). Sediment

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21: plume modelling was undertaken to predict the effect of dredging due to all potential dredge methods

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21: method backhoe dredger, CSD and TSHD are summarised below.

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21: Backhoe dredging

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21:7.5.6 A backhoe dredger is suitable for dredging cohesive and non-cohesive sediment in confined seabed

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21: areas, such as quays and berths. A backhoe dredger is similar to a land-based excavator and dredges

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21: the material in consolidated lumps as opposed to creating a more fluid slurry of dredged material (which

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21: would be generated by a CSD or TSHD). Backhoe dredging therefore typically releases less sediment

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21: water as a medium to transport the dredged sediments (CIRIA, 2000).

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21:7.5.7 The sediment plume simulations for the backhoe dredger predict that an area of elevated suspended

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21: dredger, with no wider effects within the estuary. The predicted sediment plume for the backhoe

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21: dredger is illustrated on Figure 7-3.

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21:7.5.8 CSDs are commonly used where stiffer cohesive sediments and weak rocks need to be dredged. The

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21: side of the dredging works. Larger excess concentrations are predicted in the immediate area of the

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:21: dredger, at up to 500mg/l of suspended sediment.

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:22:Figure 7-3 Simulated average increase in suspended sediment concentration from backhoe dredging in

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:23:Figure 7-4 Simulated average increase in suspended sediment concentration from CSD dredging in spring

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:24: channel, approximately 1km either side of the dredging works. Larger excess concentrations are

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:24: predicted in the immediate area of the dredger, at up to 200mg/l of suspended sediment.

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:24: Summary of impact to water quality due to sediment disturbance during dredging

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:24:7.5.12 The dredging required for the proposed scheme has potential to impact upon water quality through the

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:24: that the effects of the backhoe dredger are much reduced in comparison with the TSHD and CSD. On

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:24: average, the predicted mean concentration increases outside of the proposed dredge area are a few

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:24: immediate vicinity of the dredger, at up to 500mg/l (for the CSD).

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:24: Figure 7-5 Simulated average increase in suspended sediment concentrations from TSHD dredging in spring

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:25:7.5.14 In general, sediment plumes induced by dredging are considered to pose only a limited risk to water

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:25: particularly when dredging takes place in open seas or estuaries (CIRIA, 2000). The tidal exchange

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:25: solids in the water column from any of the potential dredge methods is predicted to be of negligible

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:25: is minimised during dredging. The main mitigation measure to limit sediment plume is selection of the

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:25: dredging method. As noted above, dredging of geological deposits may be undertaken by a TSHD,

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:25: for the proposed dredge of contaminated sediment, above the use of an enclosed grab. Controls which

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:25: would be implemented during TSHD, CSD and backhoe dredging are presented below.

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:25:7.5.20 Backhoe dredging is the most environmentally acceptable approach, as this would result in a

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:25: column during dredging activities with a backhoe dredger is to use an experienced operator, as control

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:25: over the dredging equipment is one of the main factors affecting sediment disturbance during backhoe

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:26: dredging. Other measures that limit plume generation comprise limiting the swing of the backhoe over

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:26: private vehicles, earth moving equipment, lorries and cranes and dredging vessels (see Section 3.1)

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:27: Reduced water quality due to placement of dredged material within Bran Sands lagoon

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:27: maintenance dredged material within Bran Sands lagoon, in order to enhance waterbird feeding,

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:27: roosting and nesting opportunities. The placement of dredged material within Bran Sands lagoon

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:27: of the proposed dredge area are contaminated with a range of chemicals. These contaminated

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:27: the bund would be formed prior to placement of sands, gravels and maintenance dredged materials.

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:27: dredged material. However, material would be deposited within the lagoon in slurry form, and as such,

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:28: which placed dredged material would dewater into the Tees; this would minimise the concentration of

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:28: of dredged material) prior to placement of material and would be maintained in position during the

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:28: Increased suspended sediment concentration due to maintenance dredging

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:28:7.6.1 During the operational phase, maintenance dredging within the berth pocket and approach channel

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:28: would be required to maintain the dredged depth. Such maintenance dredging would likely lead to an

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:28:7.6.2 At present, there is an existing requirement for maintenance dredging of the approach channel and

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:28: various berth pockets in the Tees estuary. The existing maintenance dredging regime is implemented

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:28: and managed by PD Teesport and the locations, volumes and frequency of dredging are well recorded.

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:28: and channel would be incorporated into the existing maintenance dredging strategy. The material from

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:28: the maintenance dredging would be disposed of at the existing disposal sites in Tees Bay (as currently

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:28: methodology used for maintenance dredging. On this basis, it is anticipated that maintenance dredging

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:28: to increased suspended sediment concentrations from maintenance dredging.

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:31: dredging and piling, and deterioration of water quality as a result of surface-run off and accidental spills

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:32:dredging and piling outlined below. Limiting re-suspension during TS

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:32:placement of dredged material curtain within the lagoon to minimise dispersion o

TR030002-000442-ES Section 7 Marine sediment and water quality.pdf:32:due to maintenance dredging

TR030002-000765-Document 8.4 Applicants Responses to Other Responses to ExA Q1.pdf:4:any changes in baseline against potential impacts of the works. quay and dredging area. The ES assumed that phase 2 would

TR030002-000765-Document 8.4 Applicants Responses to Other Responses to ExA Q1.pdf:4: quay and dredging). In the event of there being changes to the

TR030002-000765-Document 8.4 Applicants Responses to Other Responses to ExA Q1.pdf:5:MMO note the methods for dredging already expressed in the DML The appropriate amendment has been made to the draft DCO (see

TR030002-000765-Document 8.4 Applicants Responses to Other Responses to ExA Q1.pdf:6:larger dredge (approach channel and berth pocket) which was

TR030002-000765-Document 8.4 Applicants Responses to Other Responses to ExA Q1.pdf:6:that any deposits on Seal Sands from the dredge would be

TR030002-000765-Document 8.4 Applicants Responses to Other Responses to ExA Q1.pdf:6:minimal. In addition, now that the approach channel dredge is no

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:5:Teesport. The construction phase of the scheme comprises capital dredging works in the Tees

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:5:estuary, reclamation, land-side development and disposal of dredged material. HR Wallingford

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:5:dredgers at the main dredging locations were simulated. For all the dredger simulations the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:5:largest rise in peak concentrations and deposition were in the immediate vicinity of the dredger,

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:5:centred either at the location of the barge loading pontoon or along the line of the trailer dredger

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:5:properties of the Teesport Container Terminal, but are unaffected by the changes to dredging at

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:6:The predicted volumes of infill of sandy material in the dredged areas for the the existing

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:6:parts of the development include only minor dredging (an increase in depth from a currently

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:7: 1.2.3 Effect on infill rates in dredged areas…………………………………………….. 1

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:8: 5.3 DISPERSION from Dredging operations…………………………………………………. 34

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:8: 5.3.2 Dredge parameters used …………………………………………………………….. 34

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:10: dredged to declared depth of -14.1m CD

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:10:Figure 4.1 Dredged volumes for the period 1973 to 2001

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:11:Figure 5.1 Simulated dredge locations and sensitive receiver points

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:11:Figure 5.2 Peak concentration and peak deposition for cutter dredger at location 1, spring tide,

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:11:Figure 5.3 Peak concentration and peak deposition for cutter dredger at location 2, spring tide,

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:11: (Locations 3 and 4) for TSHD dredging sand in the approach channel, spring tide,

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:11: Sands (Locations 3 and 4) for TSHD dredging sand in the approach channel, spring

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:11:Figure 5.7 Time histories of concentration at Bran and North Gare Sands for TSHD dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:12:Figure 7.2 Sensitivity of peak ebb current magnitude to amended dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:12:Figure 7.3 Sensitivity of peak flood current magnitude to amended dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:12:Figure 7.4 Sensitivity of peak tidal current pattern to amended dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:13: No. 3 at Teesport. The construction phase of the scheme comprises capital dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:13: works in the Tees Estuary, reclamation, land-side development and disposal of dredged

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:13: capital dredging, from run-off from the reclamation and disposal activities, its

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:13: volume of material requiring dredging during the capital works is estimated to be about

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:13: for example, capital dredging and reclamation works therefore have the potential to

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:13:1.2.3 Effect on infill rates in dredged areas

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:13: Dredged channels and berthing pockets, or certain parts of such areas, are commonly

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:13: depositional areas for sediment; hence the need for maintenance dredging of such

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:13: are deepened or realigned through capital dredging, the flow and sediment regimes can

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:13: dredging requirement.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:13: As part of the assessment of potential changes to maintenance dredging any change to

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:14: Channel dredging and reclamation works can influence wave activity in the estuary in a

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:14: from the capital dredging operations, from reclamation run-off and from disposal of

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:14: dredged arisings. This chapter also describes the studies of the dispersion of sediment

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:16: • an adjacent berth pocket dredged to -16mCD;

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:16: • dredging of the main River Tees channel, with a slightly revised route, to -

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:16: • dredging of the two turning areas to -14.5m CD

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:20: reclamation and dredging have encouraged flow to veer eastward where the turning

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:20: of tidal and freshwater influences, are slower north of the reclamation due to dredging;

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:20: adjacent to the reclamation, the dredging effect on cross sectional area is offset by the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:23: all parts of the proposed dredging scheme. The model bathymetry used is shown in

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:24: Container Terminal development and dredging on wave conditions in the area, and also

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:28: changes to dredging at depth, as they are short period waves. The swell waves do not

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:28: the reclamation, but are affected by the dredging at depth, as they have longer periods.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:28: year. Long period waves are reflected on the side of the dredged channel and impact on

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:28: there is presently a backlog of maintenance dredging at this location in the channel. A

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:33: deposition rates in the area, both in terms of changes to the maintenance dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:33: the Baseline Maintenance Dredging Document (ABPmer (2005)) and the Conceptual

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:33: vessel induced forces and resuspension by dredging operations. These last two were

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:33: dredged by PD Teesport suggest that the area upstream of the barrage may be moving

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:34: Comparison of the above figures with the present knowledge of the dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:34: Dredged volumes for the period 1973 to 2001 are shown in Figure 4.1 which includes

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:34: 10 years linked to the response of the then THPA to a dredging review which was

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:34: that the dredging was removing about 11% more material than that accreting. Further

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:37: with the proposed dredging for these representative wave conditions. Comparing the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:38: dredging in the estuary (HR (2002)), the volume of infill was calculated in the different

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:38: For the representative wave conditions, it was assumed that the infill in the dredged

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:38: year. This table also shows the details of the average dredging per chart area (since the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:38: Chart area dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:39: material is only very slightly modified by the proposed dredging and therefore unlikely

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:39: When comparing the model figures with the average annual dredging figures, there is a

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:39: These results highlight that channel infill is only very slightly modified by the dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:40: As described above the fines content (silts and clay) of materials dredged are of the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:40: maintenance dredging requirement in the Estuary with possible consequences on the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:40: circulation present possibly with resuspension by dredging activities or large vessel

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:41: This total is of the right order compared to in situ dredged volumes (770,000-

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:42: was occurring due to dredging activity and the passage (and manoeuvring of) large

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:42: ships. At the time of the Barrage studies it was practise to overflow the dredge hopper

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:42: allowing finer dredged sediments to pass back into the estuary and removing only the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:42: dredger in disturbing the bed remains.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:45: capital dredging for the proposed development and the influence of the proposed works

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:45: • fine material released by dredging operations,

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:45: project into the behaviour of dredged material.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:45: Presently the annual maintenance dredge in the Tees Estuary is about 700,000m3 of

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:45: maintenance dredging is undertaken in the estuary, from the hopper of the dredger and

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:46: natural one rather than the dredgers transporting it to the site from the estuary.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:46: been placed by the Teesport TSHD dredgers. Only small amounts of fines were found

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:46:5.3 DISPERSION FROM DREDGING OPERATIONS

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:46: Using SEDPLUME-RW(3D) to disperse sediment from dredging operations there are a

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:46: number of things that it is required to know about the dredging operations, such as

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:46: dredger size, cycle time, overflow period etc which all feed to an understanding of the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:46: rate of sediment introduced to the water column. PD Teesport commissioned Dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:46: Research Ltd (DRL) to undertake a study of available dredging methods and suggest the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:46: It is proposed that a TSHD will be used for the dredging and reclamation of granular

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:46: be used for the bulk of the dredging of the mudstone (approximately 3.8 million m3). If

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:46:5.3.2 Dredge parameters used

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:46: The capital dredging operations are likely to be largely undertaken by trailer suction

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:46: hopper dredger (TSHD), cutter suction dredger (CSD) and or backhoe dredgers. The

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:46: last major capital dredging project on the Tees, 1998 at the Ro-Ro terminal was

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: For the purposes of the EIA the backhoe dredger is not considered because whilst the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: total amount of material lost to the water column during the dredging is higher than for

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: The trailer dredger sucks up a mixture of sediment and water from the sea bed and

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: discharges this mixture into a hopper on the vessel. The cutter suction dredger involves

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: dredger before being pumped either ashore or to a barge.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: increased by continuing to dredge after the plant is filled. The excess water is

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: discharge, as well as the action of the dredger itself will lead to increases in suspended

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: overflow from different dredging activities and the particle size distribution of the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: material in the overflow and that remaining in the hopper or barge from the dredging of

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: For the present study the model was used to simulate the dredging scenarios during a

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: simulations were run for 3 tidal cycles with the dredgers releasing fine material (less

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: Cutter Suction Dredger

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: Large Trailer Suction Hopper Dredger (6,000 m3 capacity)

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: Dredge cycle time = 190 mins

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: Total dredge time = 60 mins

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: Speed of dredger when working = 0.75 m/s (1.5 knots)

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:47: Figure 5.1 shows the four simulated cutter dredger positions and the two trailer dredger

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:48: Cutter suction dredger

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:48: barge loading site when dredging the Tees Dock turning circle. When dredging the area

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:48: dredging activity. It should be noted that much of the material is predicted to deposit

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:48: within the footprint of the dredging and/or reclamation and as such it would be re-

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:48: dredged or would deposit within an area which has already been dredged.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:48: Trailer dredger

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:48: For spring tide conditions with low freshwater flow, the effect of dredging sandy

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:48: and 1000mg/l occur along the dredger track and in the vicinity of the run-off from the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:48: (up to 0.05mm for the three tides simulated; Figure 5.5). The effect of dredging in the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:48: For all the dredger simulations the largest raising in peak concentrations and deposition

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:48: were in the immediate vicinity of the dredger, centred either at the barge loading

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:48: position (in the case of the cutter suction dredger) or along the trailer dredger track.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:49: barge or hopper from the dredging of the stiff clays and marl with CSD or TSHD. This

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:49: dredge disposal sites.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:49: The dredgings arising from CSD are shown above to have proportionately greater

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:49: dredgings arising from the TSHD.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:49: dredged material from the proposed works. There has been previous detailed

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:49: dredged material at the inshore disposal site (HR Wallingford 1998b).

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:49: maintenance dredging in the Tees Estuary which is about 1,500m3, with the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:49: maintenance dredged material being fine. It can thus be seen that the capital dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:50: dredging. It can thus be concluded based on the detailed monitoring undertaken in 1996

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:50: disposal sites as part of the proposed capital dredging will be significantly less than that

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:50: associated with the disposal of maintenance dredged material.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:50: To further illustrate the dispersion of fines from the capital dredging a flow field for the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:50: dredging of stiff clay and marls can be described as being fine sands (60 to 200

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:51: One of the measurement periods included placement of maintenance dredging material

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:51: covering a 6 week period during which a total of 92,500 m3 of dredged material were

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:51: sediment in the area would be expected during the dredging and disposal operations.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:51: Approximately 30% to 40% of the material arising from the dredging of stiff clay and

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:52: The model was run, for both the existing layout and the proposed layout with dredged

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:53: and proposed port layouts and dredged depths. The plume model was driven by the

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:55: of the dredged channel further away from intertidal areas.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:55: Presently Seaton Channel does not undergo regular maintenance, with dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:55: dredging campaign siltation rates of approximately 90,000 m3 per year were observed,

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:57: A small variation to the scheme was proposed to remove the dredged areas further away

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:57: the potential adverse effect on the slag embankments adjacent to the dredged area.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:59: dredging and disposal operations and the impact of the scheme on the dispersion of

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:59: hopper dredgers at the main dredging locations were simulated. For all the dredger

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:59: vicinity of the dredger, centred either at the location of the barge loading pontoon or

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:59: along the line of the trailer dredger track.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:59: changes to dredging at depth, as they are short period waves.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:60: channel infill is only very slightly modified by the dredging and therefore unlikely to

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:61: ABPmer (2005) Tees Maintenance Dredging Baseline Document. Report R.1149.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:61: Det Norske Veritas, (2004). Environmental assessment of dredging operations, changes

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:61: Dredging Research Limited (2005) PD Teesport – Northern Gateway EIA, Dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:61: Halcrow (1991) Tees Estuary Dredging Review. Report for Tees and Hartlepool Port

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:61: HR Wallingford (1992). Tees and Hartlepool Port Authority. Review of Dredging.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:62: HR Wallingford (1998a) Measurement of sediment properties of dredged material from

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:62: HR Wallingford (2000) Properties of Dredged Material, Final Report, Report SR 517.

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:136: Dredged to 14.5m CD

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:136: 6 Dredged to 16m CD

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:141:Figure 4.1 Dredged volumes for the period 1973 to 2001

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:152: Dredging volume

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:152: Average annual dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:152: Dredging volume

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:152: Average annual dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:152: Dredging volume

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:152: Average annual dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:152: Dredging volume

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:152: Average annual dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:162: Dredge locations for cutter

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:162: Dredge locations for trailer 1 2

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:162:Figure 5.1 Simulated dredge locations and sensitive receiver points

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:202: (scheme) (scheme+TERRC dredging)

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:203: (scheme) (scheme+TERRC dredging)

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:204: Scheme Scheme+TERRC dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:205: Scheme Scheme+TERRC dredging

TR030002-000466-Section 5 App 5.2 Model calibration and validation.pdf:209:Figure 7.4 Sensitivity of peak tidal current pattern to amended dredging

TR030002-000856-151216 TR030002 York Potash Ltd - Document 8.10 - Schedule of Changes to the Draft DCO.pdf:19: (g) details of the method location and extent of any dredging, a technical assessment of the likely

TR030002-000856-151216 TR030002 York Potash Ltd - Document 8.10 - Schedule of Changes to the Draft DCO.pdf:19: effect of the dredging on the protected crossings and any mitigation measures which are

TR030002-000856-151216 TR030002 York Potash Ltd - Document 8.10 - Schedule of Changes to the Draft DCO.pdf:22: 15.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a pipeline

TR030002-000856-151216 TR030002 York Potash Ltd - Document 8.10 - Schedule of Changes to the Draft DCO.pdf:40: (g) details of the method location and extent of any dredging, a technical assessment of the likely

TR030002-000856-151216 TR030002 York Potash Ltd - Document 8.10 - Schedule of Changes to the Draft DCO.pdf:40: effect of the dredging on the protected crossings and any mitigation measures which are proposed

TR030002-000856-151216 TR030002 York Potash Ltd - Document 8.10 - Schedule of Changes to the Draft DCO.pdf:43: 15.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a pipeline affects

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:1: x capital dredging (i.e. deepening beyond the current maintained depth) of a section of the

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:1:3.1.5 Within the area that would require dredging in the current approach channel, the channel would be

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:1: the Tees). The approach channel dredging required would be the same for both the open quay

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:1: structure and solid quay structure. It is proposed that dredging to 16m bCD (-18.85mOD) would be

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:19:1 Dredging Area Dredging Area Dredging

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:26: deeper water near to the river channel in order to reduce dredging requirements or, in the case of the

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:26: solid quay structure (see below), to balance the dredge and reclamation quantities.

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:27: G RIV DREDGED AREA

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:27: EXIST DREDGED SIDE SLOPES

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:28: DREDGED AREA

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:28: ISTIN DREDGED SIDE SLOPES

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:30: Dredging of the approach channel and berth pocket

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:30: Proposed dredge depth and volume (Phases 1 and 2)

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:30:3.1.28 Capital dredging of the berth pocket (and approaches to the pocket) would be required in order to allow

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:30: the maximum design vessels proposed access to the port terminal. This dredging would be undertaken

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:30: in two phases and is linked to the phased construction of the quay. Dredging would also be required to

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:30:3.1.29 As part of the dredging for both Phase 1 and Phase 2, capital dredging would be required within the

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:30: approach channel in order to provide the required access for vessels. The required extent of dredging

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:31: EXTENT OF DREDGED

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:31: DREDGED

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:31: DREDGE BERTH POCKET

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:31: DREDGE POCKET

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:31: DREDGED SLOPE

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:32: EXTENT OF DREDGED

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:32: DREDGED

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:32: DREDGE BERTH POCKET RAIL BEAM

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:32: DREDGE POCKET

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:33:3.1.30 Within the area that would require dredging in the current approach channel, the existing depth of the

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:33: downstream of this point to the mouth of the Tees. The approach channel dredging required would be

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:33: approximately 11.6m bCD (-14.45mOD). It is proposed that dredging to 16m bCD (-18.85mOD) would

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:33:3.1.32 Table 3-2 summarises the proposed capital dredging material quantities, split by material type, for

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:33: material to be dredged would be approximately 1,122,000m3. The construction of the solid quay option

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:33: would involve capital dredging of approximately 814,000m3, because less material would require

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:33: dredging from within the footprint of the quay structure compared with the open quay construction

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:33: (Table 3-3 provides a summary comparison of dredged material volumes for the open and solid quay

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:33: Dredge material type and likely dredge plant required

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:33: Table 3-2 Summary of capital dredged material quantities (m ) and material types for Phases 1 and 2 (open

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:33: Table 3-3 Summary of dredged material volumes for the open quay and solid quay options

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34:3.1.34 In the downstream section, existing borehole logs indicate that the required dredging would be entirely

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34: within the silts, sands, gravels and clays. In the upstream section, the dredging would generally require

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34: the removal of bedrock (marl). Consequently, the majority of the Phase 1 dredging would be

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34:3.1.35 For Phases 1 and 2, it is proposed that dredging of the silts would be undertaken using enclosed grabs,

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34: Table 3-2 shows that 181,000m3 of silts would require dredging by this method. The underlying sands

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34: (given that further ground investigation is proposed), the EIA assumes dredging 181,000m3 + the top

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34:3.1.36 Capital dredging of the sands and gravels is likely to be undertaken by Trailing Suction Hopper Dredger

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34: backhoe dredger, TSHD or Cutter Suction Dredger (CSD) could be used for dredging the clay and

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34:3.1.37 Given the variety of dredge methods that could be employed by a dredging contractor, the EIA has

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34: made predictions of sediment suspension and dispersion using each dredge method, with the impact

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34: Use and disposal of dredged material

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34: necessary to seek alternative uses for the dredged material prior to the consideration of options for

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34: disposal. Consideration of alternative uses for dredged arisings is an integral part of the licensing

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34:3.1.39 The proposed capital dredging would generate silts, sands, gravels, clay and rock, and the potential to

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34: material) is not available in this case given the need to dredge the approach channel and to create a

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34: berth pocket for vessels. The volume of the dredge, however, has been optimised to the minimum level

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34:3.1.41 The following describes the proposals for alternative uses and disposal of the dredged material for each

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:34: an interest in using the material) up to the point of dredging.

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:35:3.1.42 As noted above, silt to be dredged during Phase 1 and 2 is contaminated. Appendix 3.1 sets out the

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:35: options available for the management of the contaminated dredged material.

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:35:3.1.43 It is proposed that some of the sand and gravel from capital dredging during Phase 1 would be used

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:35: comprise the placement of dredged material within the lagoon to raise bed level in order to create a

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:35: (detailed further below). A layer of finer maintenance dredged material (mud), of up to 20cm in depth,

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:35: prevent migration of the placed capital and maintenance dredged material from the deposition area

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:35: across Bran Sands lagoon, a bund of dredged clay or mudstone would be placed, with the sand, gravel

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:35: and maintenance dredged material to be placed behind the bund.

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:35: would be dredged as part of the proposed scheme. The volume of material to be used within the

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:35:3.1.47 A proportion of the capital dredged clay and mudstone would be used to create a series of islands in

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:35: maintenance dredged material, described above.

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:37: PUMP IN MAINTENANCE DREDGING TRIM BUND AND LAY EXCESS MATERIAL

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:37: DREDGE MATERIALS

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:39: comprise use of sands and gravels from capital dredging for construction purposes), and no other

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:39: Offshore disposal dredged material

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:39:3.1.50 There are two active disposal sites that potentially could accept dredged material: Tees Bay A (TY 160)

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:39: past for capital dredged material, but has received quantities of maintenance material in some years.

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:39:3.1.51 As described above, it is proposed that some of the capital dredged sands, gravels, clay and mudstone

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:39: volume of capital dredged material required for these proposals is relatively minor in the context of the

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:39: quantity of material to be dredged as part of the proposed scheme and is subject to the detailed design

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:39: of the proposals. Furthermore, the potential use dredged sands and gravels for construction purposes

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:39: of dredged material, that the following maximum quantity of capital dredged material would be disposed

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:39: of at the capital dredged material disposal site (Tees Bay C):

TR030002-000437-ES Section 3 Project description_1 of 2.pdf:39:3.1.53 As described above, all capital dredged silt is considered to be contaminated and would not, therefore,

TR030002-000565-Doc 6.9 Parameters Table.pdf:3:1 Dredging Area Dredging Area Dredging

TR030002-000565-Doc 6.9 Parameters Table.pdf:3: Demolition of NWL Facility Maximum depth of approach channel dredging: -16.95m OD

TR030002-000565-Doc 6.9 Parameters Table.pdf:3: Maximum depth of berth pocket dredging: -18.85m OD

TR030002-000724-York Potash Limited (Document 6.9A).pdf:3:1 Dredging Area Dredging Area Dredging

TR030002-000724-York Potash Limited (Document 6.9A).pdf:3: Demolition of NWL Facility Maximum depth of approach channel dredging: -16.95m OD

TR030002-000724-York Potash Limited (Document 6.9A).pdf:3: Maximum depth of berth pocket dredging: -18.85m OD

TR030002-000857-151216 TR030002 York Potash Ltd - Document 6.10A - Outline Construction Environmental Management Plan.pdf:8:  capital dredging (i.e. deepening beyond the current maintained depth) of a section of the

TR030002-000857-151216 TR030002 York Potash Ltd - Document 6.10A - Outline Construction Environmental Management Plan.pdf:27: implemented prior to dredging works being undertaken. One method which could be adopted to stiffen the material above the pipeline is jet

TR030002-000249-York Potash_RIES_25 Nov 2015.pdf:13: • Maintenance dredging within the Tees Estuary

TR030002-000249-York Potash_RIES_25 Nov 2015.pdf:14: capital dredging and piling and the potential alteration of coastal

TR030002-000249-York Potash_RIES_25 Nov 2015.pdf:24: concentration in the water column during capital dredging, sediment

TR030002-000249-York Potash_RIES_25 Nov 2015.pdf:24: be dredged using an enclosed grab (paragraph 103.39, HRA Report [APP-

TR030002-000249-York Potash_RIES_25 Nov 2015.pdf:31: and sedimentary regime as a result of the capital dredging, it has been concluded that these are unlikely to result in

TR030002-000249-York Potash_RIES_25 Nov 2015.pdf:37: Potential impacts include suspended sediment concentration in the water column during capital dredging, sediment

TR030002-000249-York Potash_RIES_25 Nov 2015.pdf:37: To avoid contamination as a result of suspended sediment, the silts would be dredged using an enclosed grab

TR030002-000657-Doc 3.8C - Indicative Section Solid Quay Construction.pdf:1: EXTENT OF DREDGED

TR030002-000657-Doc 3.8C - Indicative Section Solid Quay Construction.pdf:1: DREDGED

TR030002-000657-Doc 3.8C - Indicative Section Solid Quay Construction.pdf:1: DREDGE BERTH POCKET RAIL BEAM

TR030002-000657-Doc 3.8C - Indicative Section Solid Quay Construction.pdf:1: DREDGE POCKET

TR030002-000762-Tata Steel UK Limited and others.pdf:9:Disposal of contaminated sediments from capital dredging

TR030002-000762-Tata Steel UK Limited and others.pdf:9:Order Land must not be used for the disposal of any dredging materials.

TR030002-000494-Section 15 App 15.1 Archaeology desk based appraisal.pdf:5:due to the removal of approach channel dredging from project proposals these are now no longer under

TR030002-000494-Section 15 App 15.1 Archaeology desk based appraisal.pdf:6: In advance of any dredging activity associated with the scheme (i.e. river dredge and berth pocket),

TR030002-000494-Section 15 App 15.1 Archaeology desk based appraisal.pdf:6: potential archaeological effects arising from dredging within the Tees estuary.

TR030002-000494-Section 15 App 15.1 Archaeology desk based appraisal.pdf:9: predominantly on the area of the harbour facility (including marine terminal, dredging and options for

TR030002-000494-Section 15 App 15.1 Archaeology desk based appraisal.pdf:10: study area. However, due to the removal of approach channel dredging from the project proposals, and

TR030002-000494-Section 15 App 15.1 Archaeology desk based appraisal.pdf:31:  In advance of any dredging activity associated with the scheme, a reporting protocol would need to

TR030002-000494-Section 15 App 15.1 Archaeology desk based appraisal.pdf:31: dredging within the Tees Estuary.

TR030002-000701-Environment Agency.pdf:3:Disposal of contaminated sediments from capital dredging

TR030002-000701-Environment Agency.pdf:3:Paragraph 3.1.42 of the ES (Doc 6.4) confirms that some of the capital dredged material

TR030002-000701-Environment Agency.pdf:3:dredged material and contaminated excavated material on land is provided in Sections 5.1-

TR030002-000701-Environment Agency.pdf:6:proposed capital dredging. The applicant concludes that the deterioration would only be

TR030002-000701-Environment Agency.pdf:10:  A port terminal on the southern bank of the Tees estuary (with capital dredging of an

TR030002-000701-Environment Agency.pdf:12: estuary because no capital dredging seaward of the location of the proposed port terminal

TR030002-000701-Environment Agency.pdf:12: regime would not alter the present frequency of or methodology for maintenance dredging

TR030002-000701-Environment Agency.pdf:15:  Cefas Guideline Action Levels for the disposal of dredged material; and,

TR030002-000701-Environment Agency.pdf:15:  re-suspension of sediment during capital dredging and piling;

TR030002-000701-Environment Agency.pdf:15:  reduced water quality due to placement of dredged material within Bran Sands lagoon (as

TR030002-000701-Environment Agency.pdf:15: be dredged during the construction phase is contaminated. In order to prevent the dispersion

TR030002-000701-Environment Agency.pdf:15: of this material during capital dredging, the use of an enclosed grab is proposed.

TR030002-000701-Environment Agency.pdf:15: and water quality during dredging:

TR030002-000701-Environment Agency.pdf:16:  limiting re-suspension of sediment during trailing suction hopper dredging can be achieved

TR030002-000701-Environment Agency.pdf:16:  reduction of sediment plumes during backhoe dredging can be achieved by using an

TR030002-000701-Environment Agency.pdf:16:  resuspension of sediment during cutter suction dredging can be reduced through

TR030002-000701-Environment Agency.pdf:16: sediment during placement of dredged material required to construct the habitat

TR030002-000701-Environment Agency.pdf:17: habitat due to quay construction and capital dredging, and noise and vibration disturbance to

TR030002-000701-Environment Agency.pdf:17: construction of the port terminal and capital dredging.

TR030002-000701-Environment Agency.pdf:20:7.4. In order to assess the environmental effects from impact piling and dredging activities, the

TR030002-000701-Environment Agency.pdf:21:  direct uptake and loss of fish, fish eggs and food resources during dredging and port

TR030002-000701-Environment Agency.pdf:21: Direct uptake and loss of fish, fish eggs and food resources during dredging and quay

TR030002-000701-Environment Agency.pdf:21: channel is widespread and likely to be influenced by regular maintenance dredging. For the

TR030002-000701-Environment Agency.pdf:21: significance is predicted to fish species due to dredging of the approach channel.

TR030002-000701-Environment Agency.pdf:21: Direct uptake and loss of fish, fish eggs and food resources during dredging and quay

TR030002-000701-Environment Agency.pdf:24: Agency’s Clearing the Waters: A user guide for marine dredging activities guidance.

TR030002-000434-ES Contents_index.pdf:9:22 OFFSHORE DISPOSAL OF DREDGED MATERIAL………………………………………… 737

TR030002-000434-ES Contents_index.pdf:9: 22.2 Modelling of the dispersion of capital dredged material …………………………………………………. 737

TR030002-000434-ES Contents_index.pdf:12:Table 3-2 Summary of capital dredged material quantities and material types for

TR030002-000434-ES Contents_index.pdf:12:Table 3-3 Summary of dredged material volumes for the open quay and solid quay

TR030002-000434-ES Contents_index.pdf:13:Figure 5-2 Simulated sediment release from CSD dredging in spring tide, low river

TR030002-000434-ES Contents_index.pdf:13: concentration b) deposition after 3 tides of dredging

TR030002-000434-ES Contents_index.pdf:13:Figure 5-3 Simulated sediment release from TSHD dredging in spring tide, low river

TR030002-000434-ES Contents_index.pdf:13: concentration b) deposition after 3 tides of dredging

TR030002-000434-ES Contents_index.pdf:13:Figure 5-4 Simulated sediment release from backhoe dredging in spring tide, low

TR030002-000434-ES Contents_index.pdf:13: concentration b) deposition after 3 tides of dredging

TR030002-000434-ES Contents_index.pdf:14:Figure 5-5 Simulated sediment release from CSD dredging in neap tide, high river

TR030002-000434-ES Contents_index.pdf:14: concentration b) deposition after 3 tides of dredging

TR030002-000434-ES Contents_index.pdf:14:Figure 5-6 Simulated sediment release from TSHD dredging in neap tide, high river

TR030002-000434-ES Contents_index.pdf:14: concentration b) deposition after 3 tides of dredging

TR030002-000434-ES Contents_index.pdf:14:Figure 5-7 Simulated sediment release from backhoe dredging in neap tide, high

TR030002-000434-ES Contents_index.pdf:14: concentration b) deposition after 3 tides of dredging

TR030002-000434-ES Contents_index.pdf:14:Figure 5-8 Change in depth average currents due to dredging and open quay

TR030002-000434-ES Contents_index.pdf:14:Figure 5-9 Change in depth average currents due to dredging and the solid quay

TR030002-000434-ES Contents_index.pdf:14:Figure5-10 Change in depth average currents due to dredging and the open quay

TR030002-000434-ES Contents_index.pdf:14:Figure 5-11 Change in depth average currents due to dredging and the solid quay

TR030002-000434-ES Contents_index.pdf:14:Figure 5-12 Change in wave height (m) due to dredging and open quay structure

TR030002-000434-ES Contents_index.pdf:14:Figure 5-13 Change in wave height (m) due to dredging and solid quay structure

TR030002-000434-ES Contents_index.pdf:16: backhoe dredging in spring tide, low river flow conditions

TR030002-000434-ES Contents_index.pdf:16: CSD dredging in spring tide, low river flow conditions

TR030002-000434-ES Contents_index.pdf:16: TSHD dredging in spring tide, low river flow conditions

TR030002-000434-ES Contents_index.pdf:16: increments for dredging activities

TR030002-000434-ES Contents_index.pdf:17: backhoe and suction dredging levels with regard to harbour seal

TR030002-000434-ES Contents_index.pdf:21: backhoe and suction dredging operations

TR030002-000434-ES Contents_index.pdf:21:Figure 11-5 Time history of a dredger operating approximately 1km from the noise

TR030002-000434-ES Contents_index.pdf:21:Figure 11-6 Frequency spectra of two recordings of dredging compared to a

TR030002-000434-ES Contents_index.pdf:26:Figure 14-5 Noise contour plot of quay construction – Stage 3 (Dredge Area 1)

TR030002-000434-ES Contents_index.pdf:26:Figure 14-6 Noise contour plot of quay construction – Stage 3 (Dredge Area 2)

TR030002-000434-ES Contents_index.pdf:28:Figure 16.1 Advertised dredged depths within the Tees estuary

TR030002-000434-ES Contents_index.pdf:31:Section 22 Offshore disposal of dredged material

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:6: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:6: “dredging” means using any device to move material (whether or not suspended in water) from

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:6: “gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:8: © dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:8: (b) dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:8: “sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:8: “silt” means dredged materials with a diameter of at least 31.25 and less than 62.5 micrometres;

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:29: (3) dredging of approach channel and berth pocket; and

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:35: 1 1, 2, 4 and 9 (i) dredging;

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:35: 2, 3 1 and 9 (i) dredging; and

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:35: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:35: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:36: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:37: 12 and 13 1, 4, 5, 9 and 10 (i) dredging;

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:41: 1 1, 2, 4 and 9 (i) dredging;

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:41: 2, 3 1 and 9 (i) dredging; and

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:41: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:41: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:43: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:44: 12 and 13 1, 4, 5 and 9 (i) dredging;

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:51: Capital dredging and disposal

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:51: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:51: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:51:Dredged material type Open quay (m3) Solid quay (m3)

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:51: (3) For phases 1 and 2, the dredging of the contaminated silts will be undertaken using enclosed

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:51: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing Suction

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:51:Hopper Dredger (TSHD).

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:52: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) must be undertaken

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:52:using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2, dredging of sands

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:52:and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:52: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C (TY

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:52:150)offshore dredged material disposal sites—

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:55: Capital dredging, disposal conditions and debris

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:55: 34.—(1) The undertaker must agree a capital dredge and disposal strategy with the MMO at least

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:55: (2) If any disposal or dredging activities are to take place after 1st October 2017 then—

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:55: months prior to that dredging or disposal activity being carried out;

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:55: validated by the MMO at least six weeks prior to the dredging or disposal activity being

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:55: © the dredging and disposal activity must not be carried out without the consent of the MMO.

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:55: 35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:55: 36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:55: 37. The undertaker must ensure that any man-made material is separated from the dredged

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:55:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:75: (a) in relation to works other than dredging any part of the authorised development—

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:75: (b) in relation to dredging any part of the authorised development which—

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:76: (g) details of the method location and extent of any dredging, an technical assessment of the

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:76: likely effect of the dredging on the protected crossings and any mitigation measures which

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:77: 13.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a pipe

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:88: (e) commencing any dredging operation,

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:88:dredging operation or altered drawings.

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:88: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:88:paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:89:Capital dredge and disposal Schedule 5, paragraph 35 The whole strategy

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:91: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:94: may reasonably be put in dredging the river to remove the sedimentation or in making good

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:94: (b) carry out the necessary dredging at its own expense and subject to the prior approval of the

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:95:under any duty to dredge the approaches from the river channel to the quay, or the berthing pocket

TR030002-000820-Document 4.1C - Draft Development Consent Order (Clean).pdf:96: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the Tees

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:7:30 DISPOSAL OF DREDGED MATERIAL …………………………………………………………. 270

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:10: sediment plume dispersion and deposition onto the seabed during capital dredging

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:11:Figure 25.2 Change in wave height (m) due to dredge and solid quay at high water, 5 year return

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:20: water quality / coastal incorporating the existing dredged material disposal sites.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:29:4.3.1 In addition to maintenance dredging in the Tees (listed in Table 4-1), a search of the MMO’s Public

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:29: jetty. The project would include capital dredging to deepen the existing QEII berth from 10.9m below

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:29: dredging is expected to be in the region of approximately 36,000 m3.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:29:4.3.3 All material arising from the capital dredging will be disposed of at the existing offshore disposal site in

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:48: 172 PD TEESPORT MAINTENANCE DREDGING IN THE TEES

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:51: Dredging) Windfarm Ltd) 242;1

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:52: NGCT Dredge Footprint

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:52: QEII Berth Development Dredge &

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:54:4.3.6 Capital dredging is proposed within the existing dredged approach channel to deepen the channel by

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:54: quay face. The total volume of material that will arise from the capital dredging will be approximately

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:54: widening (capital dredging) of the berth at Tees Dock No.1 Quay, and resultant required strengthening /

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:54: dredging would be approximately 262,000m3, with material arising from the capital dredging being

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:162:8.3.7 Increases in vessel movements as a result of the capital dredging to be undertaken during Phases 1

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:162: dredging works associated with the Harbour facilities and the fact that the proposed dredging is not

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:162:8.3.9 As pollutant emissions from vessels associated with dredging activities and emissions from plant to be

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:185:15.1.5 The potential cumulative impacts associated with the disposal of dredged material are also considered.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:196: 172 (PD Teesport Dredging) “?

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:206: 172 (PD Teesport Dredging) ”?

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:211: further assessment, as shown in Table 19-1. In addition, maintenance dredging at Teesport has been

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:216: 172 (PD Teesport Dredging)

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:218: dredging (172)

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:220: designated as Heavily Modified under the WFD for navigation purposes (i.e. dredging). It is currently at

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:224: 172 (PD Teesport Dredging) %>

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:250: the proposed Harbour facilities (specifically the port terminal and capital dredging) with relevant non-

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:251: during capital dredging

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:251: Changes to wave dredging The assessment of potential cumulative impact, therefore, has

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:251:25.2.3 The maintenance dredging programme in the Tees has not been subject to EIA; however, a

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:251: Maintenance Dredging Baseline Document (Royal Haskoning, 2008) has been prepared in accordance

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:251: with the ‘Maintenance Dredging Protocol’ (Defra, 2007). This Baseline Document has been reviewed

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:251: dredging on European sites (in this case the Teesmouth and Cleveland Coast Special Protection Area

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:252: maintenance dredging programme has been assessed using expert judgement, informed by the

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:252: findings of the EIA studies undertaken for each project and the Maintenance Dredging Baseline

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:252: Dispersion of suspended sediment and deposition on the seabed during capital dredging

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:252:25.4.1 The YPP Harbour facilities, QEII Berth Development and the NGCT would involve capital dredging,

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:253:25.4.2 The extent of sediment plume created by capital dredging is heavily dependent on the dredging plant

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:253: dredge volume. The EIA studies make informed assumptions about the most likely dredge plant that

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:253: would be adopted and, in some cases, assumed that different types of plant would be used for dredging

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:253: plume dispersion and deposition onto the seabed during capital dredging

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:253: YPP Harbour facilities Trailing Suction Hopper Dredger (TSHD) in low river flow, spring tide

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:253: NGCT TSHD dredging sand in the approach channel in low river flow, spring tide

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:253: QEII Berth Development Cutter suction dredger in low river flow, spring tide

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:253: predicted in close proximity to the dredger, with dispersion of the plume resulting in a significantly

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:253: watering of dredged material placed during reclamation works for the proposed terminal.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:253: proximity to the dredging (and reclamation) activity over the slack water period; this is largely within the

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:253: dredged footprint of the proposed works and, in practice, much of this material would be re-dredged as

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:257:25.4.6 As set out above, the potential impacts of the maintenance dredging programme in the Tees are

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:257: considered within the Maintenance Dredging Baseline Document (Royal Haskoning, 2008). This

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:257: consideration is specifically in the context of the implications of maintenance dredging for Teesmouth

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:257:  effect of increases in suspended sediments during maintenance dredging on food resources of SPA

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:257:  increased noise levels (disturbance) during maintenance dredging.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:257:25.4.7 The Maintenance Dredging Baseline Document 2008 concluded that maintenance dredging represents

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:257: a potential supply of fine material to Seal Sands, with the timing of maintenance dredging in relation to

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:257: Overall, however, the Maintenance Dredging Baseline Document concluded that the maintenance

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:257: dredging activity does not appear to be having (or has historically had) an impact on the designated site

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:257:25.4.8 The latest annual update to the Maintenance Dredging Baseline Document (Royal HaskoningDHV,

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:257: maintenance dredging at current permitted levels has no significant impact on estuary morphology,

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:257: not result in an impact on tidal propagation or water levels due to the limited area of proposed dredging

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:258: proposed capital dredging) for a 5 year return period and wind from 215o.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:258: Figure 25-2 Change in wave height (m) due to dredge and solid quay at high water, 5 year return period,

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:259: estuary that would arise from capital dredging for the NGCT. Given that the YPP Harbour facility does

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:260: function of the capital dredging, with currents predicted to be reduced within the deepened areas.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:260: dredging is predicted to draw some of the flow to the south side of the estuary, although such effects

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:261: immediate area of the dredging, are predicted. The predicted effects are very localised to the location

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:264: infill in the berth pocket, new dredged approaches and extended area of 14.1m bCD channel. This

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:264:25.4.25 In terms of maintenance dredging requirements associated with the proposed YPP berth pocket and

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:264: dredging, and no effect on sediment supply to intertidal areas throughout the Tees estuary would occur.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:265: dredged area (predicted to be of the order of. 3,500 to 4,500m3 per year). Some local redistribution of

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:265: Tees estuary from offshore; with the potential to increase the maintenance dredging requirements by

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:266:25.4.34 As stated above, the maintenance dredging programme represents a potential supply of fine material to

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:266: Seal Sands. However, the latest annual update to the Maintenance Dredging Baseline Document

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:266: maintenance dredging regime can adversely affect the overall estuary morphology and the ongoing

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:268: proposed Harbour facilities (specifically the port terminal and capital dredging) with relevant non-YPP

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:268: maintenance dredging The potentially affected receptor during the construction phase

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:268: construction phase dredging

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:268: non-contaminated and potentially contaminated sediments during capital dredging and the

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:269: maintenance dredging (including potentially contaminated marine sediment)

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:269: capital dredging), the potential for a cumulative effect to occur only arises should the dredging

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:269: programmes of capital dredging would coincide to result in a scenario where sediment plumes combine

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:269: dredging as part of the above three projects could, theoretically, overlap. The potential cumulative

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:269:26.4.3 With regard to the potential for dredging contaminated sediment, the marine licence for the capital

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:269: dredging for the QEII Berth Development requires the use of specialist dredging equipment (i.e. an

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:269: enclosed grab loading into a sealed barge) for dredging of unconsolidated material to minimise

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:269: of contaminants within the dredged sediment, and this measure would limit sediment release into the

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:269: unconsolidated material. The underlying geological material would be dredged by either a cutter

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:269: suction dredger or backhoe dredger (the implications of both types of dredger on suspended sediment

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:269: concluded that there would not be an environmentally unacceptable impact due to capital dredging and

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:269: there were no constraints imposed on the dredging activity to limit potential water quality impacts.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270:26.4.5 The quality of the sediment overlying the geological material to be dredged as part of the Harbour

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: facilities proposals has been found to be contaminated and it is proposed that this material is dredged

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: using an enclosed grab in a similar manner to the consented QEII dredging in order to avoid any

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: significant losses of material into the water column during the dredging of this material.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270:26.4.6 It is concluded that the predicted suspended sediment concentration generated by capital dredging for

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: nature of the capital dredging and the intermittent nature of the peaks related to both tidal influence and

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: location of the dredger. Should the capital dredging programmes of the projects considered in this CIA

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: (where required) would avoid a water quality impact during dredging of contaminated material.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270:26.4.7 As discussed above, the latest annual update to the Maintenance Dredging Baseline Document (Royal

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: HaskoningDHV, 2014a) concludes that, at a water body level, maintenance dredging at current

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: dredging taking place at the location of the proposed Harbour facilities when the construction and

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: capital dredging works are being undertaken and, therefore, should maintenance dredging be

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: maintenance dredging to interact with a sediment plume from capital dredging.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270:26.4.8 Mitigation to limit the dispersion of dredged sediment for the QEII Berth Development project (i.e. the

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: use of specialist dredging plant due to the presence of elevated contaminants) is discussed above.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270:26.4.9 The significance of the potential cumulative impact between maintenance dredging and proposed

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: capital dredging works was investigated as part of the NGCT studies. This concluded that the

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: combined effect of maintenance dredging being undertaken during the capital works were not

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: significantly different from those predicted as a consequence of the capital dredging alone, and this

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: it is likely that maintenance dredging in the wider estuary would be timed to avoid being undertaken

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: during a significant capital dredge and this would mitigate the potential for cumulative impact on water

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270:26.4.10 In terms of dispersion of suspended sediment during dredging, the EIA studies for the Harbour facilities

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:270: above, it is however proposed that contaminated sediment would be dredged using an enclosed grab.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:271: Potential for cumulative water quality impact due to maintenance dredging

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:271:26.4.12 Although maintenance dredging forms part of the Harbour facilities and has, therefore, be assessed as

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:271: part of the EIA, it is necessary to include maintenance dredging within the CIA in order to assess

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:271: dredging programme.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:271: an assessment of the likely maintenance dredging requirement (ES Section 5).. It is predicted that

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:271: present frequency of, or methodology used for, maintenance dredging. The cumulative impact on

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:271: water quality due to maintenance dredging for the Harbour facilities with the wider maintenance

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:271: dredging programme in the Tees estuary is, therefore, predicted to be of negligible significance.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:272: proposed Harbour facilities (specifically the port terminal and capital dredging) with non-YPP

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:272: dredging

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:272: plume during capital dredging

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:272: dredging. by changes in the hydrodynamic and sedimentary

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:272: sedimentary regime (i.e. extent of sediment deposition during capital dredging and the nature of indirect

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:272: of non-contaminated and potentially contaminated sediments during capital dredging.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:273: deposition of sediment onto the seabed is predicted to occur as a result of capital dredging. Much of

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:273: this area is within the existing dredged approach channel.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:273: during capital dredging

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:273: QEII Berth Development would overlap should the capital dredging phases of these projects coincide,

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:273:27.4.2 Any deposition arising from capital dredging the YPP Harbour facilities would be in the subtidal zone,

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:273: peak deposition predicted due to the latter project is less than 1mm (except at the point of dredging for

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:274: the QEII Berth Development, where deposited material would be re-dredged); this is considered

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:274:27.4.4 Maintenance dredging is targeted at areas that require dredging to maintain navigable depths and,

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:274: although the effect of the NGCT capital dredge is more extensive and extends into Seaton Channel and

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:274: coincide, the area of the seabed directly affected by the capital dredging for the NGCT project (i.e. the

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:274: footprint of the dredging) for the most part coincides with, and extends beyond, the area affected by

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:274: deposition of sediment arising from the Harbour facilities capital dredging. As a result, the direct effect

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:274: footprint of the dredge. In this context, and any deposition of material from the Harbour facilities would

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:274: dispersion during capital dredging is also relevant here (i.e. sediment suspension and dispersion is

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:274: Effect on fish populations due to creation of a sediment plume during capital dredging

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:274:27.4.9 The capital dredging associated with the three projects would result in an effect over a larger spatial

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:275: dispersion during capital dredging is also relevant here. The cumulative residual impact on fish

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:275: dredging and offshore disposal as part of maintenance of the channel. The effect of the Harbour

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:275: facilities would, therefore, be to cause a redistribution of sediment that requires maintenance dredging.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:275: that there would be an increase in maintenance dredging requirement of the same magnitude.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:275: predicted for the scheme in isolation) in maintenance dredge requirement in the Harbour facilities

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:275:27.4.15 It is concluded that there would be no cumulative effect on the maintenance dredging commitment and,

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:278: Harbour facilities (specifically the port terminal and capital dredging) with non-YPP developments.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:278: during capital dredging

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:278: waterbirds (including effect on  Maintenance dredging.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:278: sedimentary regime (i.e. extent of sediment deposition during capital dredging and the nature of indirect

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:279: capital dredging

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:279: due to creation of a sediment plume during capital dredging) given that waterbirds potentially affected

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:279: dispersion during capital dredging is also relevant here. The residual impact on feeding waterbirds

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:279: dredging requirement due to the YPP Harbour facility, NGCT and QEII Berth Development. Based on

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:280:  Maintenance dredging.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:281: construction site, although there would be dredger movements in the main navigation channel

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:281: associated with transport of dredged material to disposal sites in Tees Bay.

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:281: channel dredging for the NGCT project which would pass adjacent to the site of the construction works

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:284:30 DISPOSAL OF DREDGED MATERIAL

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:284:30.1.1 It is proposed that (aside from the contaminated material at the surface) the dredged material

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:284: dredged material disposal site in Tees Bay (Tees Bay C); should no beneficial use options be

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:284:30.1.2 The ES concluded that the disposal of dredged material would not result in any significant impacts

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:286: Defra (2007). Maintenance Dredging and The Habitats Regulations 1994: A Conservation Assessment

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:286: Royal Haskoning (2008). Tees Maintenance Dredging Baseline Document, pp 68. Report to PD

TR030002-000507-Doc 6.6 Environmental Statement_CIA.pdf:286: Royal HaskoningDHV (2014a). Tees Maintenance Dredging Annual Review 2013. Prepared for PD

TR030002-000495-Section 15 App 15.2 Northern Gateway Archaeological Appraisal.pdf:8: overlain by alluvial silt material dredged from the river channel.

TR030002-000495-Section 15 App 15.2 Northern Gateway Archaeological Appraisal.pdf:8: • A deep water berth alongside the quay dredged to 16 m CD

TR030002-000495-Section 15 App 15.2 Northern Gateway Archaeological Appraisal.pdf:8: terminal dredging of the two vessel turning areas in the river.

TR030002-000495-Section 15 App 15.2 Northern Gateway Archaeological Appraisal.pdf:12: assessment area during dredging of the river (Site 21) in the wider vicinity a

TR030002-000495-Section 15 App 15.2 Northern Gateway Archaeological Appraisal.pdf:14: found in close proximity to the proposed development during dredging.

TR030002-000495-Section 15 App 15.2 Northern Gateway Archaeological Appraisal.pdf:15: cheap method of dumping their waste. The river channel was dredged and the silts

TR030002-000495-Section 15 App 15.2 Northern Gateway Archaeological Appraisal.pdf:17: proposed site it is possible that the ground breaking works and dredging required

TR030002-000495-Section 15 App 15.2 Northern Gateway Archaeological Appraisal.pdf:17:6.3.3 It is possible that the proposed dredging works and channel straightening will

TR030002-000495-Section 15 App 15.2 Northern Gateway Archaeological Appraisal.pdf:24:Description: Found in Tees by Mr Watkinson whilst Dredging. Stone ware flagon. Cracked

TR030002-000495-Section 15 App 15.2 Northern Gateway Archaeological Appraisal.pdf:24: there is a whole in the side where it was hit by the bucket of the dredger.

TR030002-000495-Section 15 App 15.2 Northern Gateway Archaeological Appraisal.pdf:24:Description: A Neolithic stone axe head was found in 1892. It was dredged from the River Tees

TR030002-000458-ES Section 23 Impact interrelationships.pdf:2: dredged arisings

TR030002-000458-ES Section 23 Impact interrelationships.pdf:2: contaminated (fine) dredged proposals for the treatment of the

TR030002-000458-ES Section 23 Impact interrelationships.pdf:2:are proposed in Sections 11 and 22 and in Appendix 3.1. The use of an enclosed grab to dredge the contaminated

TR030002-000458-ES Section 23 Impact interrelationships.pdf:3: dredging and piling resulting in an

TR030002-000458-ES Section 23 Impact interrelationships.pdf:7: Section 22 - Offshore disposal of dredged material

TR030002-000458-ES Section 23 Impact interrelationships.pdf:7: disposal of dredged material (however, see Fisheries above). No additional mitigation measures are considered to be

TR030002-000661-Doc 3.9C - Indicative Section Open Quay Construction.pdf:1: EXTENT OF DREDGED

TR030002-000661-Doc 3.9C - Indicative Section Open Quay Construction.pdf:1: DREDGED

TR030002-000661-Doc 3.9C - Indicative Section Open Quay Construction.pdf:1: DREDGE BERTH POCKET

TR030002-000661-Doc 3.9C - Indicative Section Open Quay Construction.pdf:1: DREDGE POCKET

TR030002-000661-Doc 3.9C - Indicative Section Open Quay Construction.pdf:1: DREDGED SLOPE

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:14:The habitat enhancement proposals comprise the placement of capital and maintenance dredged arisings

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:15:placement of dredged material in Bran Sands lagoon would provide habitat enhancement. The proposals

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:17: enhancement proposals (placement of dredged evidence

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:19:dredging contractors, who confirmed that the approach illustrated is deliverable.

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:19: dredging. The ground investigation may need to be extended to cover the lagoon.

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:19:the sediment quality at the site of the proposed port terminal and within the footprint of the capital dredging is

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:20:and to contain the placement of dredged material in subsequent stages of the works. Marl would continue to

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:20:capital dredging or imported (e.g. sand/gravel) to create island habitats. To suppress vegetation growth, a

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:20:maintenance material is to be placed (in Stage 8) as the dredged material dewaters to the Tees estuary (i.e.

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:20:Uncontaminated and fine (i.e. silt) maintenance dredged material would be pumped into the placement area.

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:20:When the desired level has reached, pumping of dredged material would cease and the silt box would be

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:22: PUMP IN MAINTENANCE DREDGING

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:22: DREDGE MATERIALS

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:23:dredged material of 30cm. In addition, further survey of the bathymetry of the lagoon would be undertaken.

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:24:The habitat enhancement works would be implemented in parallel with the capital dredging works. It is not

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:24:possible to implement the habitat enhancement measures in advance of the capital dredging because the

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:24:material required to form the bund to retain the maintenance dredged material and create the islands is to be

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:24:derived from the capital dredged arisings.

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:24:the timing of availability of maintenance dredged material. However, maintenance dredged arisings are

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:24:It is proposed that the new shallows would be created using uncontaminated, silty material that is dredged

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:24:disposal of maintenance dredged material in the marine environment requires that the quality of the

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:24:Maintenance dredging is undertaken within 13 reaches throughout the Tees estuary and the nature of the

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:24:dredged material (in terms of particle size) varies according to location throughout the estuary. It would,

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:25:therefore, be possible to select silty material from maintenance dredging of an appropriate reach of the

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:25:Maintenance dredging and disposal is undertaken by PD Ports and the MMO has indicated that PD Ports’

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:25:marine licence (for disposal of dredged material) could be varied to include Bran Sands lagoon as a location

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:25:for the placement of maintenance dredged material. This would represent an alternative use of dredged

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:25:process for disposal of dredged material. Consultation with PD Ports will, therefore, be undertaken as part

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:25:was recharged with maintenance dredged silts.

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:25:evolution of a site that had no invertebrate value and was recharged with maintenance dredging. Although

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:28:(maintenance dredgings) placed in an area of eroding saltmarsh adjacent to a marina in the Crouch estuary,

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:28:maintenance dredged material recharged onto an intertidal area, namely:

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:28: 1. Direct transfer within the dredged material.

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:28:occur due to the smothering effect and depth of sediment associated with the placement of the dredged

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:29:likely means of colonisation of the maintenance dredged material. Planktonic recruitment is considered

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:29:dredged material, given that estuarine invertebrate reproduction is seasonal and restricted to late spring or

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:34:The elevation and profile of the placed dredged material would also be monitored (in part to establish item 1

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:35:with additional maintenance dredged material, and vegetation management (e.g. on the islands, should

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:37:Royal HaskoningDHV (2014b). Tees Maintenance Dredging Annual Review 2013. Prepared for PD Ports.

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:43:  From a Health and Safety (and dredging vessel availability) perspective how likely is it that

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:43: these dredging operations will be allowed to coincide with the other consented schemes by

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:43: the harbour authority? (11.3.10). It is also not clear if the combined dredging impacts (one

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:44: o Detail on how careful calculations of levels and placement of bunds/dredgings will be

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:44: o Details of suitable substrates – the non-toxic fines from maintenance dredgings – and

TR030002-000758-Document 6.12 Mitigation and Monitoring Strategy.pdf:44: England suggests grab samples are taken at the proposed dredge site to ground

TR030002-000838-SABIC UK Petrochemicals Ltd - Deadline 4 Submission.pdf:11: (f) details of the method location and extent of any dredging, an technical assessment of the

TR030002-000838-SABIC UK Petrochemicals Ltd - Deadline 4 Submission.pdf:11: likely effect of the dredging on the protected crossings and any mitigation measures which are

TR030002-000838-SABIC UK Petrochemicals Ltd - Deadline 4 Submission.pdf:13:13. (1) Where excavation of trenches (including excavation by dredging) adjacent to a pipeline affects its

TR030002-000834-Document 4.2B - Explanatory Memorandum (Tracked).pdf:6: ii. dredging of the approach channel and berth pocket;

TR030002-000834-Document 4.2B - Explanatory Memorandum (Tracked).pdf:19: This is the dredging of the approach channel and berth pocket and the demolition

TR030002-000834-Document 4.2B - Explanatory Memorandum (Tracked).pdf:20:involve the placing of dredged materials into the lagoon to create shallow water

TR030002-000834-Document 4.2B - Explanatory Memorandum (Tracked).pdf:21: Dredging of material from the approach channel and berth pocket;

TR030002-000834-Document 4.2B - Explanatory Memorandum (Tracked).pdf:21: Placement of dredge material within Bran Sands Lagoon (habitat

TR030002-000834-Document 4.2B - Explanatory Memorandum (Tracked).pdf:21: Dredging of material from the approach channel and berth pocket;

TR030002-000834-Document 4.2B - Explanatory Memorandum (Tracked).pdf:22: conditions in relation to the quay and dredge area in the event that phase 2

TR030002-000834-Document 4.2B - Explanatory Memorandum (Tracked).pdf:24: sampling plan in the event of any dredging or disposal taking place post

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:3:processes resulting from maintenance dredging works that are intended to be carried out. The

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:3:ES should include details of the proposed deposit locations for the spoil dredged as part of

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:3:The Scoping Report states that maintenance dredging may be required and that this will be

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:3:and cause additional sedimentation which could increase dredging operations at other locations

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:4:Two offshore disposal sites have been identified that could potentially accept the dredged

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:5:The applicant has stated if no alternative uses for dredged material can be found, then all Proposals for alternative uses of dredg

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:5:dredged material will be disposed of offshore. The applicant should ensure that if this is the case 3 also sets out the proposed use of dr

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:5:disposed offshore. dredged material for which no practica

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:5:material that will need to be maintenance dredged from the YPL dredge footprint each year? If Section 5.6. There would be no effec

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:5:A full assessment of impacts due to dredging will be needed in the ES. Sections 5.5 and 5.6

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:6: incorporating the existing dredged material disposal sites. The domain for the numerical modelling

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:7:5.3.4 New data on bed sediment types anticipated to be dredged for the proposed scheme has been used in

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:7: defining the detail of the dredging activity and to inform the modelling of the release of sediment during

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:7: the dredging and disposal.

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:10: wave induced currents, vessel induced forces and resuspension of material by dredging operations.

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:10:5.4.19 Maintenance dredging information from PD Teesport (pers. comm., reported in HR Wallingford, 2006)

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:10: suggests that out of the 1.35 million m3 of sediment that is dredged annually, 250,000m3 is mud. Of the

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:10: Sediment release during dredging

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:10:5.5.1 As described in Section 3, an enclosed grab is proposed to dredge the contaminated sediments

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:10: present within the dredge footprint during both Phase 1 and Phase 2 (see Section 7.4). The dredging

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:10: undertaken by a TSHD, CSD or backhoe dredger.

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:10: x Increased turbidity due to release of sediments into the water column during the dredge.

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:10: compared with the backhoe, combined with the potential for overflow of the dredged material within the

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:10: that is specifically used to limit the release of sediment into the water column during dredging as much

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:10: as possible (e.g. when sediments to be dredged are known to be contaminated).

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: of dredging associated with all potential dredge methods (with the exception of an enclosed grab, due

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: sets of flow results to examine the fate of fine material dispersed into the water column during dredging

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: of the berth pocket and approach channel for TSHD, CSD and backhoe dredgers. The low freshwater

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: and CSD dredger at the proposed development site for both sets of flow results are shown in Figures

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: 5-2 to 5-7. The modelling includes sediment release at the dredger drag head and overflow from the

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: A backhoe dredger would produce an effect at least an order of magnitude lower.

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: area of the dredging operation. The deposition indicated within the proposed dredged area would be

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: likely to be re-dredged as part of the capital dredging operations. The footprint of the effect of dredging

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: above 10mg/l are confined to an area 500m upstream and downstream of the dredger. Mean

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: concentration increases of more than 500mg/l are predicted at the location of the dredging activity only.

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: Immediately upstream and downstream of the dredging location, deposition of tens of millimetres is

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: Elsewhere within the estuary (up to 1.5km either side of the dredge location), fine sediment deposition

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11:5.5.8 The simulation results for the backhoe dredger predict that an area of elevated suspended sediment

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: dredger, with no wider effects within the estuary. Sediment deposition of a maximum of a few

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: millimetres is predicted up to 1.5km upstream and downstream of the dredger.

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: dredging works. Larger excess concentrations are predicted in the immediate area of the dredger, at

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: millimetres at a distance of approximately 2km either side of the dredge footprint, while deposition at

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11: the dredge location is predicted to be 10 to 20mm.

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:11:5.5.10 During simulations for all dredge methods, no average increase in suspended sediment concentration

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:12:5.5.11 Following a consideration of alternative uses for the dredged material (see Section 3), it is proposed

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:12: would be disposed of at the capital dredged material disposal site in Tees Bay (Tees Bay C).

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:12: Figure 5-2 Simulated sediment release from CSD dredging in spring tide, low river flow conditions

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:12: a) average increase in suspended sediment concentration b) deposition after 3 tides of dredging

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:13:Figure 5-3 Simulated sediment release from TSHD dredging in spring tide, low river flow conditions

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:13:a) average increase in suspended sediment concentration b) deposition after 3 tides of dredging

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:14:Figure 5-4 Simulated sediment release from backhoe dredging in spring tide, low river flow conditions

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:14:a) average increase in suspended sediment concentration b) deposition after 3 tides of dredging

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:15:Figure 5-5 Simulated sediment release from CSD dredging in neap tide, high river flow conditions

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:15:a) average increase in suspended sediment concentration b) deposition after 3 tides of dredging

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:16:Figure 5-6 Simulated sediment release from TSHD dredging in neap tide, high river flow conditions

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:16:a) average increase in suspended sediment concentration b) deposition after 3 tides of dredging

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:18:Figure 5-7 Simulated sediment release from backhoe dredging in neap tide, high river flow conditions

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:18:a) average increase in suspended sediment concentration b) deposition after 3 tides of dredging

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:19:5.6.4 The model has been used to simulate the proposed scheme, comprising the proposed dredging and

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:19: capital dredging, with currents predicted to be reduced within the deepened areas. The results show

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:19: flood tide), suggesting that the dredging is predicted to draw some of the flow to the south side of the

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:20: Figure 5-8 Change in depth average currents due to dredging and open quay structure at time of peak ebb

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:20: Figure 5-9 Change in depth average currents due to dredging and the solid quay structure at time of peak ebb

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:21:Figure5-10 Change in depth average currents due to dredging and the open quay structure at time of peak

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:21:Figure 5-11 Change in depth average currents due to dredging and the solid quay structure at time of peak

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:22:5.6.11 The limited area of dredging required for the proposed scheme suggests that there would be a

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:22:5.6.12 Given that no capital dredging of the approach channel is proposed between the location of the

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:22: waves, although the proposed dredged slope and new revetment to the rear of the structure may have

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:22:5.6.14 Simulations of the effect of the proposed dredging and both options for the quay were undertaken for

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:22: proposed dredging is not predicted to change the overall pattern of wave conditions throughout the

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:22: the open quay structure. This small increase in wave height is considered to be a result of the dredging

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:23: Changes to the local sediment regime including sedimentation in the dredged areas

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:23:5.6.19 Given that the proposed dredging does not include any changes to the outer sections of the approach

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:23: pocket, new dredged approaches and extended area of -14.1m CD channel.

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:23:5.6.21 Within the estuary and approaches the areas of current maintenance dredging are divided into a series

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:23: that, in Chart area 8, 83% of the material dredged is in the fine silts and clay fractions. The most

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:24:Figure 5-12 Change in wave height (m) due to dredging and open quay structure

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:24: a. Change in wave height (m) due to dredging and open quay at b. Change in wave height (m) due to dre

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:25:c. Change in wave height (m) due to dredging and open quay at high water, d. Change in wave height (m) due to dredg

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:26:e. Change in wave height (m) due to dredging and open quay at high f. Change in wave height (m) due to dredging

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:27:g. Change in wave height (m) due to dredging and open quay at high h. Change in wave height (m) due to dredging

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:28:Figure 5-13 Change in wave height (m) due to dredging and solid quay structure

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:28: a. Change in wave height (m) due to dredging and solid quay at b. Change in wave height (m) due to dre

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:29: c. Change in wave height (m) due to dredging and solid quay at d. Change in wave height (m) due to dre

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:30: e. Change in wave height (m) due to dredging and solid quay at f. Change in wave height (m) due to dre

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:31: g. Change in wave height (m) due to dredging and solid quay at h. Change in wave height (m) due to dre

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:32:5.6.22 The modelling undertaken for the hydrodynamic studies shows the effect of the proposed dredging on

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:32: the import of fine sediment and the potential infill rate in the proposed dredged areas associated with

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:33: or methodology used for, maintenance dredging and no effect on sediment supply to intertidal areas

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:33: dredged represents a redistribution of material that currently settles within the lower estuary only. As a

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:33: during dredging

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:33: dredger. Mean concentration increases of more than 500mg/l are

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:33: predicted at the location of the dredging activity only.

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:33: Backhoe dredger x An area of elevated suspended sediment concentrations in the range of

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:33: dredger, with no wider effects within the estuary

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:33: 1km either side of the dredging works. Larger excess concentrations

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:33: are predicted in the immediate area of the dredger, at up to 200mg/l of

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:34:The highest amounts of deposition are predicted in the immediate area of the dredging operation. The deposition

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:34:indicated within the proposed dredged area would be likely to be re-dredged as part of the capital dredging

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:34:CSD x Immediately upstream and downstream of the dredging location,

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:34: Elsewhere within the estuary (up to 1.5km either side of the dredge

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:34: to 1.5km upstream and downstream of the dredger.

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:34: millimetres at a distance of approximately 2km either side of the dredge

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:34: footprint, while deposition at the dredge location is predicted to be 10 to

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:35:dredged areas x The proposed scheme would result in a localised redistribution of

TR030002-000440-ES Section 5 Hydrodynamic and sedimentary regime.pdf:35: frequency of maintenance dredging.

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:5:“clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:5:“dredging” means using any device to move material (whether or not suspended in water)

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:6: “gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:7:© dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:7:(b) dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:7:“sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:7:“silt” means dredged materials with a diameter of at least 31.25 and less than 62.5

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:29: (3) dredging of approach channel and berth pocket; and

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:35:1 1, 2, 4 and 9 (i) dredging;

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:35:2, 3 1 and 9 (i) dredging; and

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:35:6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:35:8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:36:11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:37:12 and 13 1, 4, 5, 9 and 10 (i) dredging;

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:41:1 1, 2, 4 and 9 (i) dredging;

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:41:2, 3 1 and 9 (i) dredging; and

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:41:6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:41:8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:43:11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:44:12 and 13 1, 4, 5 and 9 (i) dredging;

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:52: Capital dredging and disposal

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:52: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:52: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:52:Dredged material type Open quay (m3) Solid quay (m3)

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:52: (3) For phases 1 and 2, the dredging of the contaminated silts will be undertaken using enclosed

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:52: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:52: Suction Hopper Dredger (TSHD).

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:53: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) must be undertaken

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:53:using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2, dredging of sands

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:53:and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:53: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:53:(TY 150)offshore dredged material disposal sites—

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:56: Capital dredging, disposal conditions and debris

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:56: 34.—(1) The undertaker must agree a capital dredge and disposal strategy with the MMO at

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:56: (2) If any disposal or dredging activities are to take place after 1st October 2017 then—

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:56: six months prior to that dredging or disposal activity being carried out;

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:56: validated by the MMO at least six weeks prior to the dredging or disposal activity being

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:56: © the dredging and disposal activity must not be carried out without the consent of the

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:56: 35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:56: 36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:56: 37. The undertaker must ensure that any man-made material is separated from the dredged

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:56:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:78:(ii) details of the method location and extent of any dredging, a technical assessment of the

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:78: likely effect of the dredging on the protected crossings and any mitigation measures

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:81: 14.—(1) Where excavation of trenches (including excavation by dredging) adjacent to a pipeline

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:94: (e) commencing any dredging operation,

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:94: or dredging operation or altered drawings.

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:94: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:94: paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:95:Capital dredge and disposal Schedule 5, paragraph 35 The whole strategy

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:97: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:100: may reasonably be put in dredging the river to remove the sedimentation or in making

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:100: (b) carry out the necessary dredging at its own expense and subject to the prior approval of

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:101:under any duty to dredge the approaches from the river channel to the quay, or the berthing pocket

TR030002-000371-141125_York_Potash_ExAs_Draft_DCO.PDF:102: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the Tees

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:7: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:7: “dredging” means using any device to move material (whether or not suspended in water)

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:7: “gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:8: “sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:8: “silt” means dredged materials with a diameter of at least 31.25 and less than 62.5

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:24: (1) dredging of approach channel and berth pocket; and

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:34: Capital dredging and disposal

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:34: 6. —(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:34: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:34: Dredged material type Open quay (m3) Solid quay (m3)

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:34: (3) For phases 1 and 2, the dredging of the silts will be undertaken using enclosed grabs.

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:34: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:34:Suction Hopper Dredger (TSHD).

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:34: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) will be undertaken

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:34:using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2, dredging of sands

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:34:and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:34: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:34:(TY 150)offshore dredged material disposal sites:

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:35:enhancement scheme (i.e. with the use of the chosen alternative use of dredged material

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:37: Capital dredging and disposal conditions

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:37: 35.The undertaker must agree a capital dredge and disposal strategy with the MMO at least 4

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:37: 36.The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:37: 37.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:37: 38.The undertaker must ensure that any man-made material must be separated from the dredged

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:59: (b) agreeing a dredge and disposal strategy with the MMO under paragraph 35 of Schedule 5

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:62: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:64: may reasonably be put in dredging the river to remove the sedimentation or in making

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:64: (b) carry out the necessary dredging at its own expense and subject to the prior approval of

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:66:under any duty to dredge the access channel to, or the berthing pocket at, the quay to a depth

TR030002-000427-Doc 4.1 Draft DCO (including requirements).pdf:66: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the 1966

TR030002-000698-Natural England 1.pdf:1: dry material at a rate of 12m tons per annum (dry weight); Associated dredging

TR030002-000698-Natural England 1.pdf:32:sediment and water quality and does not propose any monitoring of initial concern was based on the original much larger dredge

TR030002-000698-Natural England 1.pdf:32:quality survey) record the following comment from NE “Post dredging document referred to above, we are confident that any deposits on

TR030002-000698-Natural England 1.pdf:32:monitoring of Seal Sands should be taken from the same location as Seal Sands from the dredge would be minimal. In addition, now that

TR030002-000698-Natural England 1.pdf:32:the baseline samples so to identify new deposits as a result of the approach channel dredge is no longer being considered we are

TR030002-000698-Natural England 1.pdf:32:dredging activities. If dredging is found to be detrimental, additional further satisfied that no mitigation will be required.

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:6: “clay” means dredged materials with a diameter of less than 31.25 micrometres;

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:6: “dredging” means using any device to move material (whether or not suspended in water) from

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:6: “gravel” means dredged materials with a diameter of at least 2 and less than 64 millimetres;

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:8: © dredging of up to 750,000m3 of material from the approach channel and berth pocket;

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:8: (b) dredging of up to 372,000m3 of material from the approach channel and berth pocket;

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:8: “sand” means dredged materials with a diameter of at least 62.5 micrometres and less than 2

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:8: “silt” means dredged materials with a diameter of at least 31.25 and less than 62.5 micrometres;

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:29: (3) dredging of approach channel and berth pocket; and

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:34:Light/Dolphin Mooring Bollard” prior to demolition, and monitoring of dredging works in the

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:36: 1 1, 2, 4 and 9 (i) dredging;

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:36: 2, 3 1 and 9 (i) dredging; and

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:36: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:36: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:37: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:38: 12 and 13 1, 4, 5, 9 and 10 (i) dredging;

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:42: 1 1, 2, 4 and 9 (i) dredging;

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:42: 2, 3 1 and 9 (i) dredging; and

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:42: 6 and 7 1 and 9 Dredging and to obtain access for

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:42: 8 1, 2, 3, 4, 5, 6, 7a, 9 and 10 (i) dredging;

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:44: 11 1, 2, 3, 4, 5, 6, 7b, 9 and 10 (i) dredging;

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:45: 12 and 13 1, 4, 5 and 9 (i) dredging;

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:52: Capital dredging and disposal

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:52: 6.—(1) The undertaker is permitted to carry out capital dredging at the following locations—

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:52: (2) The materials must be dredged in the approximate quantities according to the following

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:52:Dredged material type Open quay (m3) Solid quay (m3)

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:52: (3) For phases 1 and 2, the dredging of the contaminated silts will be undertaken using enclosed

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:52: (4) For phase 1 the dredging of the sands and gravels will be undertaken using a Trailing Suction

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:52:Hopper Dredger (TSHD).

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:53: (5) For phases 1 and 2 the dredging of the clay and Mercia mudstone (marl) must be undertaken

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:53:using a backhoe dredger, TSHD or Cutter Suction Dredger (CSD). For phase 2, dredging of sands

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:53:and gravel would also be by either a backhoe dredger, TSHD or CSD.

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:53: (6) The following maximum quantities of dredged material would be disposed at Tees Bay C (TY

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:53:150)offshore dredged material disposal sites—

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:56: Capital dredging, disposal conditions and debris

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:56: 34.—(1) The undertaker must agree a capital dredge and disposal strategy with the MMO at least

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:56: (2) If any disposal or dredging activities are to take place after 1st October 2017 then—

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:56: months prior to that dredging or disposal activity being carried out;

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:56: validated by the MMO at least six weeks prior to the dredging or disposal activity being

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:56: © the dredging and disposal activity must not be carried out without the consent of the MMO.

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:56: 35. The undertaker must ensure that as a result of the capital dredging activities referred to in

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:56: 36.—(1) The undertaker must ensure that certified returns of quantities of dredged material

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:56: 37. The undertaker must ensure that any man-made material is separated from the dredged

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:56:necessary to deposit the dredged material other than in accordance with the capital dredge and

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:78: (g) details of the method location and extent of any dredging, a technical assessment of the

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:78: likely effect of the dredging on the protected crossings and any mitigation measures which

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:81: 15.—(1) (1) Where excavation of trenches (including excavation by dredging) adjacent to a

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:95: (e) commencing any dredging operation,

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:95:dredging operation or altered drawings.

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:95: (5) No construction or maintenance of a tidal work or dredging operation referred to in sub-

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:95:paragraph 28 unless in the case of the dredging operation that operation is being carried out by the

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:96:Capital dredge and disposal Schedule 5, paragraph 34 The whole strategy

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:98: removing substituted moorings or buoys, or carrying out dredging operations for any such

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:101: may reasonably be put in dredging the river to remove the sedimentation or in making good

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:101: (b) carry out the necessary dredging at its own expense and subject to the prior approval of the

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:103:under any duty to dredge the approaches from the river channel to the quay, or the berthing pocket

TR030002-000897-160113_TR03002_Draft Development Consent Order (Clean).pdf:103: (4) The requirements of sections 22 (licensing of works) and 23 (licence to dredge) of the Tees

TR030002-001873-Decision holding letter (5).pdf:1: construction and operation of a quay structure; the dredging of the approach

TR030002-001873-Decision holding letter (5).pdf:2: © dredging of up to 750,000 cubic metres of material from the approach

TR030002-000417-Doc 1.5 s55 Checklist.pdf:17: Section 22 - Offshore disposal of dredged materials

TR030002-000879-Document 8 12 - Applicants responses to other parties submissions for deadline 6.pdf:5: Objectors. The issue principally relates to dredging and the Applicant is able to

TR030002-000879-Document 8 12 - Applicants responses to other parties submissions for deadline 6.pdf:5: commit to not dredging within 25 metres of the existing crossings. The closest

TR030002-000879-Document 8 12 - Applicants responses to other parties submissions for deadline 6.pdf:5: crossing to the dredging area is the Breagh pipeline at 26.7 metres. The 25 metres

TR030002-000879-Document 8 12 - Applicants responses to other parties submissions for deadline 6.pdf:5: incorporates a significant margin over the dredging that has already been permitted

TR030002-000879-Document 8 12 - Applicants responses to other parties submissions for deadline 6.pdf:5: for the Northern Gateway project which authorises dredging as close as 14.6 metres

EIA_2017_00041-APPLICATION-FORM.pdf:4:☑ Construction, ☑ Deposit of any ☑ Dredging

EIA_2017_00041-APPLICATION-FORM.pdf:5:•Capital dredging of the approach channel to the proposed NGCT (equating to

EIA_2017_00041-APPLICATION-FORM.pdf:5:•Disposal of dredged material (through a combination of beneficial reuse (localised

EIA_2017_00041-APPLICATION-FORM.pdf:5:disposal of dredged material).

I&BPB6776R001F01_NGCT scoping document.pdf:4:  Capital dredging of the approach channel to the proposed NGCT (equating to approximately 4.8

I&BPB6776R001F01_NGCT scoping document.pdf:4:  Disposal of dredged material (through a combination of beneficial reuse (localised reclamation

I&BPB6776R001F01_NGCT scoping document.pdf:4: and raising land levels within the proposed terminal site) and offshore disposal of dredged

I&BPB6776R001F01_NGCT scoping document.pdf:6: sediment quality within the Tees estuary and to determine whether there would be an issue regarding the offshore disposal of dredged material. The

I&BPB6776R001F01_NGCT scoping document.pdf:6: Water quality dredging and disposal). We will request the most recent water quality data from the Environment Agency to assess whether the baseline environment

I&BPB6776R001F01_NGCT scoping document.pdf:9: dredged material).

I&BPB6776R001F01_NGCT scoping document.pdf:9: The proposed scheme would result in the generation of waste (particularly dredged material from the navigation channel). Although there would be

I&BPB6776R001F01_NGCT scoping document.pdf:9: water) focussed on waste minimisation and beneficial reuse of the dredged material.

I&BPB6776R001F01_NGCT scoping document.pdf:16: carried out in phased manner. Approach channel dredge, up to 4million cubic

I&BPB6776R001F01_NGCT scoping document.pdf:16: NGCT approach channel dredge. Dredging is not considered an EIA project, but

I&BPB6776R001F01_NGCT scoping document.pdf:16: dredge to -14.5m CD.

NGCT_Final_ES at KK with figs.pdf:3: 1.6.8 Disposal of dredged material 31

NGCT_Final_ES at KK with figs.pdf:4: 3.1.1 Capital dredging of the approach channel 71

NGCT_Final_ES at KK with figs.pdf:4: 3.1.3 Disposal of dredged material 77

NGCT_Final_ES at KK with figs.pdf:4: 3.2.5 Maintenance dredging 85

NGCT_Final_ES at KK with figs.pdf:5: 6.3.1 Dispersion of material during capital dredging 166

NGCT_Final_ES at KK with figs.pdf:6: contaminated sediment during capital dredging 227

NGCT_Final_ES at KK with figs.pdf:6: biologically contaminated sediment during capital dredging 228

NGCT_Final_ES at KK with figs.pdf:6: to maintenance dredging required as a consequence of the

NGCT_Final_ES at KK with figs.pdf:7: turbidity during capital dredging 264

NGCT_Final_ES at KK with figs.pdf:7: 9.2.2 Resuspension of contaminants during capital dredging 267

NGCT_Final_ES at KK with figs.pdf:7: 9.2.4 Impact of dredging on designated bathing waters 270

NGCT_Final_ES at KK with figs.pdf:7: increased turbidity during maintenance dredging 272

NGCT_Final_ES at KK with figs.pdf:7: reclamation and dredging 292

NGCT_Final_ES at KK with figs.pdf:7: resuspended by capital dredging within intertidal areas 294

NGCT_Final_ES at KK with figs.pdf:8: resuspended by capital dredging within subtidal areas 296

NGCT_Final_ES at KK with figs.pdf:8: dredging 301

NGCT_Final_ES at KK with figs.pdf:8: dredging 321

NGCT_Final_ES at KK with figs.pdf:8: capital dredging 322

NGCT_Final_ES at KK with figs.pdf:9: 11.3.4 Potential effect of maintenance dredging on food resources for

NGCT_Final_ES at KK with figs.pdf:9: in Bran Sands lagoon if secured for the disposal of dredged

NGCT_Final_ES at KK with figs.pdf:9: 13.2.1 Direct uptake and disturbance of fish during capital dredging 340

NGCT_Final_ES at KK with figs.pdf:9: dredging and dewatering of the reclamation area 340

NGCT_Final_ES at KK with figs.pdf:10: capital dredging on the potential archaeological resource 356

NGCT_Final_ES at KK with figs.pdf:11: piling and capital dredging 389

NGCT_Final_ES at KK with figs.pdf:12: 23.3.1 Potential impact on Infrastructure due to maintenance dredging 432

NGCT_Final_ES at KK with figs.pdf:13:25 OFFSHORE DISPOSAL OF DREDGED MATERIAL 448

NGCT_Final_ES at KK with figs.pdf:13: 25.4 Modelling of the dispersion of capital dredged material placed at

NGCT_Final_ES at KK with figs.pdf:13: dredging 461

NGCT_Final_ES at KK with figs.pdf:14:1.5 Footprint of proposed capital dredging 11

NGCT_Final_ES at KK with figs.pdf:14:3.2 Proposed dredging footprint divided into sections 72

NGCT_Final_ES at KK with figs.pdf:14:6.2 Bed types of material dredged in 1991 165

NGCT_Final_ES at KK with figs.pdf:14:6.3 Simulated dredge locations for CSD and THDS and ‘sensitive’ receptor 169

NGCT_Final_ES at KK with figs.pdf:14:6.4 Peak concentration and peak deposition for cutter suction dredger at 171

NGCT_Final_ES at KK with figs.pdf:14:6.5 Peak concentration and peak deposition for cutter suction dredger at 172

NGCT_Final_ES at KK with figs.pdf:14:6.6 Peak concentration and deposition for TSHD dredging sand in the 175

NGCT_Final_ES at KK with figs.pdf:14: and Seal Sands (Locations 3 and 4) for TSHD dredging sand in the

NGCT_Final_ES at KK with figs.pdf:15: and Seal Sands (Locations 3 and 4) for TSHD dredging sand in the

NGCT_Final_ES at KK with figs.pdf:15: TSHD dredging sand in approach channel, spring tide low flow

NGCT_Final_ES at KK with figs.pdf:15: dredging in the lower channel on peak current speeds at peak ebb

NGCT_Final_ES at KK with figs.pdf:15: dredging in the lower channel on peak current speeds at peak flood

NGCT_Final_ES at KK with figs.pdf:15: dredging in the lower channel on depth-averaged tidal currents

NGCT_Final_ES at KK with figs.pdf:15: and Seal Sands (Locations 3 and 4) for TSHD dredging sand in Tees

NGCT_Final_ES at KK with figs.pdf:15: and Seal Sands for a TSHD dredging sand in the approach channel

NGCT_Final_ES at KK with figs.pdf:18:3.3 Possible scenarios for the disposal of dredged material arising from 92

NGCT_Final_ES at KK with figs.pdf:19: the proposed dredge area

NGCT_Final_ES at KK with figs.pdf:20:19.3 Predicted free-field receiver noise levels with piling and dredging and 384

NGCT_Final_ES at KK with figs.pdf:20: and dredging and existing ambient noise levels

NGCT_Final_ES at KK with figs.pdf:20:25.1 Summary of the two potential scenarios for the disposal of dredged 448

NGCT_Final_ES at KK with figs.pdf:21:25.2 Results of sampling of sediment in areas where maintenance dredging 449

NGCT_Final_ES at KK with figs.pdf:22:BD Backhoe Dredger

NGCT_Final_ES at KK with figs.pdf:22:CSD Cutter Suction Dredger

NGCT_Final_ES at KK with figs.pdf:22:DRL Dredging Research Ltd

NGCT_Final_ES at KK with figs.pdf:24:TSHD Trailing Suction Hopper Dredger

NGCT_Final_ES at KK with figs.pdf:31: Shell jetty and the Riverside Ro-Ro No. 3 at Teesport. Capital dredging of the

NGCT_Final_ES at KK with figs.pdf:31: dredging in the Tees estuary, construction of a new quay wall, reclamation and

NGCT_Final_ES at KK with figs.pdf:31: new intermodal rail terminal, road modifications and the disposal of dredged

NGCT_Final_ES at KK with figs.pdf:33: Coast Protection Act 1949 (CPA) to dispose of dredged material below the level

NGCT_Final_ES at KK with figs.pdf:34: 4. Sections 6 to 24 contain the technical assessment of the impacts of dredging,

NGCT_Final_ES at KK with figs.pdf:34: 5. Section 25 considers the implications of the disposal of dredged material at two

NGCT_Final_ES at KK with figs.pdf:35: • Capital dredging within the existing dredged approach channel to deepen the

NGCT_Final_ES at KK with figs.pdf:35: • Pumping suitable dredged material ashore for use in the reclamation works and

NGCT_Final_ES at KK with figs.pdf:35: • Disposal of the balance of the capital dredged material at existing offshore

NGCT_Final_ES at KK with figs.pdf:36: • Capital dredging of deep water berthing areas alongside the proposed quay face

NGCT_Final_ES at KK with figs.pdf:36: (dredged to 16m below CD);

NGCT_Final_ES at KK with figs.pdf:36: 2. With respect to the disposal of dredged material, it is proposed to dispose of the

NGCT_Final_ES at KK with figs.pdf:36: majority of the dredged material offshore (i.e. the balance of material remaining

NGCT_Final_ES at KK with figs.pdf:36: 3. In summary, the use of dredged material on land under this option would

NGCT_Final_ES at KK with figs.pdf:36: dredged material would be disposed at offshore disposal sites within Tees Bay.

NGCT_Final_ES at KK with figs.pdf:36: footprint of the capital dredging and the locations of the two existing disposal

NGCT_Final_ES at KK with figs.pdf:36: sites for dredged material in Tees Bay are shown in Figure 1.6.

NGCT_Final_ES at KK with figs.pdf:39: capital dredging

NGCT_Final_ES at KK with figs.pdf:39: Proposed dredge area

NGCT_Final_ES at KK with figs.pdf:45:Maintenance dredging

NGCT_Final_ES at KK with figs.pdf:45: 9. At present, maintenance dredging of the navigation channel and various

NGCT_Final_ES at KK with figs.pdf:45: maintenance dredging regime is well established and the locations, volumes and

NGCT_Final_ES at KK with figs.pdf:45: frequency of dredging are well recorded. The various aspects of the existing

NGCT_Final_ES at KK with figs.pdf:45: maintenance dredging are discussed in detail in the Tees Maintenance Dredging

NGCT_Final_ES at KK with figs.pdf:45: maintenance dredging strategy will need significant adjustment; this has been

NGCT_Final_ES at KK with figs.pdf:45: the EIA (see Section 6). It is proposed that maintenance dredgings will be

NGCT_Final_ES at KK with figs.pdf:51:English Nature Mike Quigley • Include effects of dredging on hydrodynamics, sediment transport, river profiles, intertidal areas and tidal profiles. 3, 6, 8, 9, 11, 13, 14,

NGCT_Final_ES at KK with figs.pdf:51: • Need to quantify/model changes to maintenance dredging regime and update baseline document in due course.

NGCT_Final_ES at KK with figs.pdf:51: • Assess impact of dredge plume and dewatering discharge on interest features.

NGCT_Final_ES at KK with figs.pdf:52: • Recommends looking at dissolved oxygen issues caused by re suspension of sediments during the dredging.

NGCT_Final_ES at KK with figs.pdf:52: • Requirement for a settlement facility for dewatering of dredged sediment process.

NGCT_Final_ES at KK with figs.pdf:54: • Major concern over proposed use of former Leathers Chemical Works site for disposal of dredged material (significant

NGCT_Final_ES at KK with figs.pdf:54: • Major concern over proposed use of Bran Sands for disposal of dredged material. Would prefer disposal at sea.

NGCT_Final_ES at KK with figs.pdf:54:Council authorities as dredging operations would be partly within the Stockton Administrative Boundaries.

NGCT_Final_ES at KK with figs.pdf:55: 4. The study area for the offshore disposal of dredged material is illustrated in Figure

NGCT_Final_ES at KK with figs.pdf:60:1.6.8 Disposal of dredged material

NGCT_Final_ES at KK with figs.pdf:60: 1. The study area for the offshore disposal of dredged material can broadly be

NGCT_Final_ES at KK with figs.pdf:60: at which it is proposed that dredged material will be placed. With respect to the

NGCT_Final_ES at KK with figs.pdf:60: disposal of dredged material, the effect on water quality has been assessed through

NGCT_Final_ES at KK with figs.pdf:60: the offshore disposal of dredged material.

NGCT_Final_ES at KK with figs.pdf:60: dredged material in the Bran Sands lagoon is addressed in this ES. Therefore, the

NGCT_Final_ES at KK with figs.pdf:60: result of disposal of dredged material in the lagoon. The following environmental

NGCT_Final_ES at KK with figs.pdf:60: parameters are considered relevant in relation to the potential disposal of dredged

NGCT_Final_ES at KK with figs.pdf:80: application is yet to be submitted, will require substantial dredging and reclamation,

NGCT_Final_ES at KK with figs.pdf:100:3.1.1 Capital dredging of the approach channel

NGCT_Final_ES at KK with figs.pdf:100: 1. The footprint of the proposed capital dredging is illustrated in Figure 1.5. For the

NGCT_Final_ES at KK with figs.pdf:100: proposed declared channel depth following the capital dredging.

NGCT_Final_ES at KK with figs.pdf:101: DREDGE DEPTHS mCD TEESDOCK CHANNEL CHANNEL SEATON CHANNEL ENLARGEMENT BERTHING

NGCT_Final_ES at KK with figs.pdf:102:Dredge area Channel section Existing declared Proposed Volume and

NGCT_Final_ES at KK with figs.pdf:102:3.2) (m below CD) dredged

NGCT_Final_ES at KK with figs.pdf:102: 2. The total volume of material that will arise from the capital dredging will be

NGCT_Final_ES at KK with figs.pdf:102: approximately 4.8 million m3. Based on previous investigations and capital dredging

NGCT_Final_ES at KK with figs.pdf:102: in the estuary, it is expected that, broadly, three material types would be dredged;

NGCT_Final_ES at KK with figs.pdf:102: dredged to a greater depth than the presently maintained depth of 14.1m below CD.

NGCT_Final_ES at KK with figs.pdf:102: Additionally there is a backlog of maintenance dredging in this area with some parts

NGCT_Final_ES at KK with figs.pdf:102: encountered. The total volume of silts and alluvial deposits to be dredged is

NGCT_Final_ES at KK with figs.pdf:102: expected to be small relative to the overall volume of the dredge given that the

NGCT_Final_ES at KK with figs.pdf:102: channel is already subject to maintenance dredging.

NGCT_Final_ES at KK with figs.pdf:102: 3. The dredging work can be divided into two phases as follows:

NGCT_Final_ES at KK with figs.pdf:103: trailing suction hopper dredger (TSHD). The material arising from the dredging

NGCT_Final_ES at KK with figs.pdf:103: • Phase 2 of the dredging involves the removal of mudstone using a cutter suction

NGCT_Final_ES at KK with figs.pdf:103: dredger (CSD) loading into hopper barges. The material arising from this dredging

NGCT_Final_ES at KK with figs.pdf:103: phase 20m wide, 1m deep trenches would be dredged on the inside of the edge of

NGCT_Final_ES at KK with figs.pdf:103: the dredged channel in the area upstream of Redcar in areas where there is not an

NGCT_Final_ES at KK with figs.pdf:103: existing dredged berth pocket. The purpose of these trenches is to allow

NGCT_Final_ES at KK with figs.pdf:103: dredging would, as identified above, have to be undertaken by either a TSHD or

NGCT_Final_ES at KK with figs.pdf:103: CSD. Therefore, the use of these dredgers has been assumed for the purposes of

NGCT_Final_ES at KK with figs.pdf:103: dispersion of sediment plumes during dredging). Further details on the parameters

NGCT_Final_ES at KK with figs.pdf:103: 5. There may be a requirement to use a backhoe dredger (BD) for small areas of

NGCT_Final_ES at KK with figs.pdf:103: dredging in confined areas, for example, alongside the existing quay wall, to cut

NGCT_Final_ES at KK with figs.pdf:103: be used for significant volumes of dredging due to its low production rate.

NGCT_Final_ES at KK with figs.pdf:106:3.1.3 Disposal of dredged material

NGCT_Final_ES at KK with figs.pdf:106: for the disposal of dredged material. The preferred option is to use dredged material

NGCT_Final_ES at KK with figs.pdf:106: within the terminal site. The remainder of the dredged material (silts, soft alluvial

NGCT_Final_ES at KK with figs.pdf:106: 2. It is anticipated that all the granular material arising from the dredging would be used

NGCT_Final_ES at KK with figs.pdf:106: routine maintenance dredging. A total of approximately 1.9 million m3 of material

NGCT_Final_ES at KK with figs.pdf:106: and within the terminal area, other practicable beneficial uses of dredged material

NGCT_Final_ES at KK with figs.pdf:106: dredged material within the Bran Sands lagoon is also considered within this ES.

NGCT_Final_ES at KK with figs.pdf:107: southern side of the river. The berth is currently dredged to 10.4m below CD. Figure

NGCT_Final_ES at KK with figs.pdf:114:3.2.5 Maintenance dredging

NGCT_Final_ES at KK with figs.pdf:114: 1. There is an existing requirement for maintenance dredging of the approach channel

NGCT_Final_ES at KK with figs.pdf:114: dredging regime is well established and the locations, volumes and frequency of

NGCT_Final_ES at KK with figs.pdf:114: dredging are well recorded. These various aspects of the existing maintenance

NGCT_Final_ES at KK with figs.pdf:114: dredging are discussed in detail in the Tees Maintenance Dredging Baseline

NGCT_Final_ES at KK with figs.pdf:114: requirement to adjust the maintenance dredging strategy (e.g. the annual volume

NGCT_Final_ES at KK with figs.pdf:114: dredged is not predicted to change significantly beyond the existing variability

NGCT_Final_ES at KK with figs.pdf:114: is proposed that maintenance dredgings would be disposed of at the existing

NGCT_Final_ES at KK with figs.pdf:115: • Approach channel and berthing pocket dredge depth;

NGCT_Final_ES at KK with figs.pdf:115: • Disposal locations for dredged material;

NGCT_Final_ES at KK with figs.pdf:115: here would require dredging a new approach channel at the required depth and

NGCT_Final_ES at KK with figs.pdf:117: 5. There is insufficient space for a development of this scale at this location. Dredging

NGCT_Final_ES at KK with figs.pdf:117: location. This is due to the greater dredging requirement associated with deepening

NGCT_Final_ES at KK with figs.pdf:117: the increased volume of the dredge that would be needed to create the navigation

NGCT_Final_ES at KK with figs.pdf:118: development, and probably greater as it is likely that the dredging requirement would

NGCT_Final_ES at KK with figs.pdf:118: 3. Both forms of construction would involve reclamation using dredged material i.e.

NGCT_Final_ES at KK with figs.pdf:118: behind the quay. Dredged material is unlikely to be suitable for this bund and hence

NGCT_Final_ES at KK with figs.pdf:118: would be undertaken by placing dredged material (sand) below low water. Above

NGCT_Final_ES at KK with figs.pdf:118: dredged material could be placed directly behind the wall.

NGCT_Final_ES at KK with figs.pdf:119:Approach channel and berthing pocket dredge depth

NGCT_Final_ES at KK with figs.pdf:119: 5. The proposed dredged depth of 14.5m below CD in the navigation channel has been

NGCT_Final_ES at KK with figs.pdf:119:Dredging plant

NGCT_Final_ES at KK with figs.pdf:119: 6. There is likely to be a requirement to utilise a number of different types of dredger

NGCT_Final_ES at KK with figs.pdf:119: depending on the nature of the material being dredged and the placement option for

NGCT_Final_ES at KK with figs.pdf:119: the material. Therefore, for different parts of the dredging it will be necessary to use

NGCT_Final_ES at KK with figs.pdf:119: a trailing suction hopper dredger or cutter suction dredger with possible use of

NGCT_Final_ES at KK with figs.pdf:119: backhoe dredger for specific small scale dredging tasks. The environmental

NGCT_Final_ES at KK with figs.pdf:119: implications of using these dredgers have been assessed and no other alternatives

NGCT_Final_ES at KK with figs.pdf:119:Disposal of dredged material

NGCT_Final_ES at KK with figs.pdf:119: 7. A number of scenarios for the disposal of dredged material have been considered,

NGCT_Final_ES at KK with figs.pdf:119: each of which involves the placement of dredged material at a number of possible

NGCT_Final_ES at KK with figs.pdf:120: of the granular material arising from the dredging of the lower channel and Seaton

NGCT_Final_ES at KK with figs.pdf:120: level. This option for the beneficial use of dredged material therefore forms part of

NGCT_Final_ES at KK with figs.pdf:120: million m3 and, therefore, given that the capital dredging is expected to generate

NGCT_Final_ES at KK with figs.pdf:120: routine maintenance dredging undertaken by PD Teesport, thus avoiding the need to

NGCT_Final_ES at KK with figs.pdf:120: of the capital dredged material (up to approximately 3.8 million m3 given that the total

NGCT_Final_ES at KK with figs.pdf:120: dredge volume would be approximately 4.8 million m3).

NGCT_Final_ES at KK with figs.pdf:120: 13. A further advantage of the disposal of dredged material within the Teesport Estate is

NGCT_Final_ES at KK with figs.pdf:120: its close proximity to part of the proposed dredge area and, therefore, the dredged

NGCT_Final_ES at KK with figs.pdf:120: dredged material, largely due to the absence of areas of suitable size. Disposal of

NGCT_Final_ES at KK with figs.pdf:120: the dredged material on a constrained area of land would create a significant mound

NGCT_Final_ES at KK with figs.pdf:120: discussions with English Nature, it was considered that the disposal of dredged

NGCT_Final_ES at KK with figs.pdf:120: material at this site could represent the beneficial use of dredged material, in that the

NGCT_Final_ES at KK with figs.pdf:120: and, therefore, the use of this site for the disposal of dredged material has been

NGCT_Final_ES at KK with figs.pdf:121: approximately 2.3 million m3 of dredged material (mudstone). The use of this site,

NGCT_Final_ES at KK with figs.pdf:121: therefore, remains a possible option for the disposal of dredged material and the

NGCT_Final_ES at KK with figs.pdf:121: disposal of dredged material in the Bran Sands lagoon.

NGCT_Final_ES at KK with figs.pdf:121: from the proposed channel dredging (Tees Bay C and Tees Bay A). Both of these

NGCT_Final_ES at KK with figs.pdf:121: sites have historically received capital and maintenance dredged material. It is

NGCT_Final_ES at KK with figs.pdf:121: proposed that dredged material (arising largely from the dredging of mudstone) will

NGCT_Final_ES at KK with figs.pdf:121: 19. The ES assesses the potential impacts associated with the disposal of dredged

NGCT_Final_ES at KK with figs.pdf:121: 20. In light of the above, there are two possible scenarios for the disposal of dredged

NGCT_Final_ES at KK with figs.pdf:121:Table 3.3 Possible scenarios for the disposal of dredged material arising from the

NGCT_Final_ES at KK with figs.pdf:121: only proposed scenario for the disposal of dredged material at present is Scenario A.

NGCT_Final_ES at KK with figs.pdf:122: the berth by dredging deeper may destabilise it. Additionally, the transfer of cars

NGCT_Final_ES at KK with figs.pdf:122: 24. Environmentally, the requirement for dredging increases the potential impact on

NGCT_Final_ES at KK with figs.pdf:122: space for safe navigation of vessels. Since dredging would not be required at this

NGCT_Final_ES at KK with figs.pdf:122: advantages associated with the use of this site are that dredging would not be

NGCT_Final_ES at KK with figs.pdf:124: sufficient existing depth of the berth which would not, therefore, require dredging.

NGCT_Final_ES at KK with figs.pdf:124: Although currently dredged to 10.4m below CD, some further dredging would be

NGCT_Final_ES at KK with figs.pdf:124: 28. Environmentally, the requirement for dredging increases the potential impact on the

NGCT_Final_ES at KK with figs.pdf:124: Tees Estuary associated with the resuspension of suspended solids. The dredging

NGCT_Final_ES at KK with figs.pdf:124: with the dredging will be limited.

NGCT_Final_ES at KK with figs.pdf:129: proposed capital dredge and five were collected at sites which were considered

NGCT_Final_ES at KK with figs.pdf:131: into the water during capital dredging most is predicted to fall out of suspension

NGCT_Final_ES at KK with figs.pdf:131: within the immediate vicinity of the dredger. It was concluded that there may be an

NGCT_Final_ES at KK with figs.pdf:132: The assessment concluded that whilst dredging and reclamation involved in the

NGCT_Final_ES at KK with figs.pdf:132: the area to be dredged. It was also concluded that re-colonisation would occur

NGCT_Final_ES at KK with figs.pdf:132: reclamation required to construct the terminal and the capital dredging of the main

NGCT_Final_ES at KK with figs.pdf:132: to be negligible. Should the Bran Sands lagoon site be reclaimed using dredged

NGCT_Final_ES at KK with figs.pdf:133: concentration in the water column as a consequence of capital dredging. This could

NGCT_Final_ES at KK with figs.pdf:133: the potential for disruption to migration. It is recommended that the dredging is

NGCT_Final_ES at KK with figs.pdf:134: impact of dredging, berth and quay wall construction, the study concluded that due to

NGCT_Final_ES at KK with figs.pdf:137: during capital dredging;

NGCT_Final_ES at KK with figs.pdf:137: 11. As a result of the capital dredging needed to create the new terminal and deepen the

NGCT_Final_ES at KK with figs.pdf:141: • Potential impact of capital dredging of flood defence assets;

NGCT_Final_ES at KK with figs.pdf:160: with potential to be impacted by the disposal of dredged material. The ecological

NGCT_Final_ES at KK with figs.pdf:160: of dredged material are common and widespread both nationally and locally and thus

NGCT_Final_ES at KK with figs.pdf:161: and dredging. This would impact on a number of habitats within the application site

NGCT_Final_ES at KK with figs.pdf:178: Archaeological diversity archaeology, but this potential is considered to be low given that the capital dredging is within an Environmental

NGCT_Final_ES at KK with figs.pdf:178: Interest and Cultural existing dredged channel. Statement (Royal

NGCT_Final_ES at KK with figs.pdf:178: term, with short term issues predicted to arise during the capital dredging. Statement (Royal

NGCT_Final_ES at KK with figs.pdf:185: There is the potential for impact on marine archaeology due to capital dredging,

NGCT_Final_ES at KK with figs.pdf:185: but the potential for effect is considered low given that the dredging is within an

NGCT_Final_ES at KK with figs.pdf:185: existing dredged channel.

NGCT_Final_ES at KK with figs.pdf:185: water column associated with capital dredging, particularly when dredging marl

NGCT_Final_ES at KK with figs.pdf:188: have also been required to commission a maintenance dredging baseline

NGCT_Final_ES at KK with figs.pdf:188: and deepening by dredging, the current depth at the mouth is about double this

NGCT_Final_ES at KK with figs.pdf:188: natural level. Dredging and training works have occurred since the

NGCT_Final_ES at KK with figs.pdf:188: establishment of the first dredged channel of 4.3m from Middlesbrough Docks to

NGCT_Final_ES at KK with figs.pdf:188: the sea after 1853. The present dredged channel has declared depths of 15.4m

NGCT_Final_ES at KK with figs.pdf:189: channel now declared at 14.1m below CD were originally dredged to a deeper

NGCT_Final_ES at KK with figs.pdf:189: depth. The present channel has a backlog of maintenance dredging and some

NGCT_Final_ES at KK with figs.pdf:189: dredgings

NGCT_Final_ES at KK with figs.pdf:189: cost of disposal of maintenance dredged material

NGCT_Final_ES at KK with figs.pdf:193: by dredging operations. These last two were postulated by HR Wallingford

NGCT_Final_ES at KK with figs.pdf:193: 6. Comparison of the above figures with the present knowledge of the dredging

NGCT_Final_ES at KK with figs.pdf:194: chart areas used by PD Teesport to manage their maintenance dredging activity.

NGCT_Final_ES at KK with figs.pdf:194: 8. The most recent evidence for types of maintenance dredging material from PD

NGCT_Final_ES at KK with figs.pdf:194: Teesport (pers. comm.) suggests that out of the 1.35 million m3 dredged

NGCT_Final_ES at KK with figs.pdf:194:Figure 6.2 Bed types of material dredged in 1991

NGCT_Final_ES at KK with figs.pdf:194: dredging have resulted in an estuary that is essentially a narrow ‘canalised’

NGCT_Final_ES at KK with figs.pdf:195:6.3.1 Dispersion of material during capital dredging

NGCT_Final_ES at KK with figs.pdf:195: 1. PD Teesport commissioned Dredging Research Ltd (DRL) to undertake a study

NGCT_Final_ES at KK with figs.pdf:195: of available dredging methods for the capital dredging. DRL were also

NGCT_Final_ES at KK with figs.pdf:195: the studies on the dispersion of the sediment plume arising during dredging, as

NGCT_Final_ES at KK with figs.pdf:195: a) There are three potential types of dredger that might be used in the works.

NGCT_Final_ES at KK with figs.pdf:195: These are the Cutter Suction Dredger (CSD), the Trailing Suction Hopper

NGCT_Final_ES at KK with figs.pdf:195: Dredger (TSHD) and the Backhoe Dredger (BD). All have their advantages and

NGCT_Final_ES at KK with figs.pdf:195: disadvantages for dealing with separate zones of dredging.

NGCT_Final_ES at KK with figs.pdf:195: b) Taking the entire dredging requirement into consideration, it is probable that

NGCT_Final_ES at KK with figs.pdf:195: c) The choice of dredger will depend to a great extent on the location of the

NGCT_Final_ES at KK with figs.pdf:195: material to be dredged, its strength and thickness, and the impact of the

NGCT_Final_ES at KK with figs.pdf:195: types of dredgers will also play a significant role in making this choice.

NGCT_Final_ES at KK with figs.pdf:195: d) Losses of suspended sediment are inevitable at the dredging face or draghead,

NGCT_Final_ES at KK with figs.pdf:195: order of magnitude greater than those occurring at the dredging face or

NGCT_Final_ES at KK with figs.pdf:195: and THSDs in these conditions. Hence, the choice of dredger type is unlikely to

NGCT_Final_ES at KK with figs.pdf:195: not possible due to the fact that smaller dredgers would be ineffective in the

NGCT_Final_ES at KK with figs.pdf:195: stronger materials to be dredged.

NGCT_Final_ES at KK with figs.pdf:195: 3. Of the three types of dredger that might be used, the BD has a working rate that

NGCT_Final_ES at KK with figs.pdf:195: above, the BD would only be used for a very limited proportion of the dredging.

NGCT_Final_ES at KK with figs.pdf:195: 4. The TSHD sails up and down a section of the area to be dredged sucking up a

NGCT_Final_ES at KK with figs.pdf:195: into a hopper on the dredger. The proportion of sediment loaded into the hopper

NGCT_Final_ES at KK with figs.pdf:195: can be increased by continuing to dredge after the hopper is initially filled with a

NGCT_Final_ES at KK with figs.pdf:196: dredger draghead and so it is the only sediment source considered for sediment

NGCT_Final_ES at KK with figs.pdf:196: (and water) is sucked to the dredger before being discharged either ashore or

NGCT_Final_ES at KK with figs.pdf:196: by continuing to dredge after the plant is filled with the overspill resulting in

NGCT_Final_ES at KK with figs.pdf:196: source of fine sediment released along the path of the dredging activity (i.e. in

NGCT_Final_ES at KK with figs.pdf:196: 6. It is proposed that a TSHD will be used for the dredging and reclamation of

NGCT_Final_ES at KK with figs.pdf:196: the dredging of the mudstone (approximately 3.8 million m3). If mudstone is to

NGCT_Final_ES at KK with figs.pdf:196:Cutter Suction Dredger

NGCT_Final_ES at KK with figs.pdf:197:Trailing Suction Hopper Dredger (6,000m3 capacity)

NGCT_Final_ES at KK with figs.pdf:197:Dredge cycle time = 190 mins

NGCT_Final_ES at KK with figs.pdf:197:Total dredge time = 60 mins

NGCT_Final_ES at KK with figs.pdf:197:Speed of dredger when dredging = 0.75 m/s (1.5 knots)

NGCT_Final_ES at KK with figs.pdf:197: three dredging scenarios. Two of these scenarios represented a CSD loading

NGCT_Final_ES at KK with figs.pdf:197: the flood tide. Overflow for one hour during the dredging was represented along

NGCT_Final_ES at KK with figs.pdf:197: the dredgers and barge overflow releasing material into the bottom metre of the

NGCT_Final_ES at KK with figs.pdf:198: Dredge locations for cutter

NGCT_Final_ES at KK with figs.pdf:198: Dredge locations for trailer 1 2

NGCT_Final_ES at KK with figs.pdf:198:Figure 6.3 Simulated dredge locations for CSD and THDS and ‘sensitive’

NGCT_Final_ES at KK with figs.pdf:199:Implications of dredging using a cutter suction dredger

NGCT_Final_ES at KK with figs.pdf:199: 12. For all the dredger simulations, the largest rise in peak concentrations and

NGCT_Final_ES at KK with figs.pdf:199: deposition were in the immediate vicinity of the dredger, centred either at the

NGCT_Final_ES at KK with figs.pdf:199: dredger track. Figures 6.4 to 6.5 show the results from the simulation of the

NGCT_Final_ES at KK with figs.pdf:199: deposition on the seabed arising from dredging at the two upstream locations.

NGCT_Final_ES at KK with figs.pdf:200:Figure 6.4 Peak concentration and peak deposition for cutter suction dredger

NGCT_Final_ES at KK with figs.pdf:201:Figure 6.5 Peak concentration and peak deposition for cutter suction dredger

NGCT_Final_ES at KK with figs.pdf:202: to the barge loading site when dredging the Tees Dock turning circle (Figure

NGCT_Final_ES at KK with figs.pdf:202: 6.4). When dredging the area adjacent to the proposed reclamation, peak

NGCT_Final_ES at KK with figs.pdf:202: deposition in the immediate vicinity of the dredging activity (Figure 6.5). It

NGCT_Final_ES at KK with figs.pdf:202: footprint of the dredging and/or reclamation and as such it would be re-dredged

NGCT_Final_ES at KK with figs.pdf:202: or would deposit within an area which has already been dredged.

NGCT_Final_ES at KK with figs.pdf:202: 16. In the CSD scenarios simulated, the dredging of mudstone (with a single CSD)

NGCT_Final_ES at KK with figs.pdf:202: redredged as part of the capital works or subsequent maintenance dredging and

NGCT_Final_ES at KK with figs.pdf:202:Implications of dredging using a trailing suction hopper dredger

NGCT_Final_ES at KK with figs.pdf:202: 17. For spring tide conditions with low freshwater flow, the effect of dredging sandy

NGCT_Final_ES at KK with figs.pdf:202: between 500mg/l and 1000mg/l occur along the dredger track and in the vicinity

NGCT_Final_ES at KK with figs.pdf:202: simulated) (see Figure 6.7). The effect of dredging in the approach channel on

NGCT_Final_ES at KK with figs.pdf:203: 18. In the scenario simulated, the dredging of sand will take about 30 days. The

NGCT_Final_ES at KK with figs.pdf:203: 400,000m3. This material would need to be redredged as part of the capital

NGCT_Final_ES at KK with figs.pdf:203: works or subsequent maintenance dredging and disposed offshore. Some

NGCT_Final_ES at KK with figs.pdf:204:Figure 6.6 Peak concentration and deposition for TSHD dredging sand in the

NGCT_Final_ES at KK with figs.pdf:205: and Seal Sands (Locations 3 and 4) for TSHD dredging sand in the

NGCT_Final_ES at KK with figs.pdf:206: 2) and Seal Sands (Locations 3 and 4) for TSHD dredging sand in

NGCT_Final_ES at KK with figs.pdf:207: TSHD dredging sand in approach channel, spring tide low flow

NGCT_Final_ES at KK with figs.pdf:216: presence of the proposed channel dredging and reclamation. The model was

NGCT_Final_ES at KK with figs.pdf:220: of the proposed dredged side trenches in the area upstream of Redcar.

NGCT_Final_ES at KK with figs.pdf:222: dredged trenches at the edges of the channel.

NGCT_Final_ES at KK with figs.pdf:223: height of 10cm. This pattern would not be altered by the presence of dredged

NGCT_Final_ES at KK with figs.pdf:224: side of the dredged channel and reach the area around the ConocoPhillips Oil

NGCT_Final_ES at KK with figs.pdf:224: by the inclusion of dredged side trenches in the channel upstream of Redcar as

NGCT_Final_ES at KK with figs.pdf:225: fact that there is presently a backlog of maintenance dredging at this location in

NGCT_Final_ES at KK with figs.pdf:225: channel. PD Teesport could dredge to 14.1m below CD at this location at

NGCT_Final_ES at KK with figs.pdf:226: recorded dredging volumes for the outer areas of the navigation channel (areas

NGCT_Final_ES at KK with figs.pdf:226: in the dredged areas will be largely unchanged by the development and hence

NGCT_Final_ES at KK with figs.pdf:226: dredged are of the order of 20-25% of the total accumulation (PDT, pers.

NGCT_Final_ES at KK with figs.pdf:226: potential for effect on the maintenance dredging requirement in the estuary and

NGCT_Final_ES at KK with figs.pdf:226: resuspension and upstream movement as a result of agitation by dredging

NGCT_Final_ES at KK with figs.pdf:227: fluvial sources). This total is of the right order compared to in situ dredged

NGCT_Final_ES at KK with figs.pdf:228: the proposed capital dredge introduces only minor changes to the existing

NGCT_Final_ES at KK with figs.pdf:229: 12. The dredging will increase the bed slope outside the entrance to Dabholm Gut

NGCT_Final_ES at KK with figs.pdf:230: of fine material with the potential to increase the maintenance dredging

NGCT_Final_ES at KK with figs.pdf:230: fine material removed by maintenance dredging operations from the turning

NGCT_Final_ES at KK with figs.pdf:231: from dredger operations).

NGCT_Final_ES at KK with figs.pdf:231: • Short term deposition during dredging operations (up to 3% of material dredged

NGCT_Final_ES at KK with figs.pdf:231: turning area if the new dredged side slopes need to adjust themselves to reach

NGCT_Final_ES at KK with figs.pdf:232: channel dredging was amended in order to ensure that no adverse effect would

NGCT_Final_ES at KK with figs.pdf:232: • Redesigning the deepened Seaton Channel turning circle to avoid dredging

NGCT_Final_ES at KK with figs.pdf:232: capital dredging in the lower channel and run for spring tide conditions under

NGCT_Final_ES at KK with figs.pdf:232: dredging in the lower channel (i.e. not the effect of the channel dredging in total;

NGCT_Final_ES at KK with figs.pdf:233: proposed capital dredging are not affected by the proposed minor changes to

NGCT_Final_ES at KK with figs.pdf:234: capital dredging in the lower channel on peak current speeds at

NGCT_Final_ES at KK with figs.pdf:235: capital dredging in the lower channel on peak current speeds at

NGCT_Final_ES at KK with figs.pdf:236: capital dredging in the lower channel on depth-averaged tidal

NGCT_Final_ES at KK with figs.pdf:237: 1. The capital dredging will resuspend seabed sediments and enable sediment to

NGCT_Final_ES at KK with figs.pdf:237: the dredging has the potential to lead to alterations in the physical, chemical and

NGCT_Final_ES at KK with figs.pdf:237: water column during the dredging activity are through sediment disturbance at

NGCT_Final_ES at KK with figs.pdf:237: the dredge head and the overflow of water (containing suspended sediments)

NGCT_Final_ES at KK with figs.pdf:237: from the dredger. The dispersion and settlement of fine sediment during capital

NGCT_Final_ES at KK with figs.pdf:237: dredging has been modelled by HR Wallingford (see Section 6.3, with full details

NGCT_Final_ES at KK with figs.pdf:237: sediments both within the area to be dredged and areas in the lower Tees

NGCT_Final_ES at KK with figs.pdf:237: where sediments have been removed through capital and maintenance dredging

NGCT_Final_ES at KK with figs.pdf:238: as a consequence of the requirement to undertake maintenance dredging in this

NGCT_Final_ES at KK with figs.pdf:239: Proposed Dredge Footprint

NGCT_Final_ES at KK with figs.pdf:240: proposed capital dredging is Redcar Jetty. The Gares and Phillips Approach

NGCT_Final_ES at KK with figs.pdf:240: monitoring sites are located just outside of the proposed dredging area. All

NGCT_Final_ES at KK with figs.pdf:240: other sites are located some distance from the proposed dredging area.

NGCT_Final_ES at KK with figs.pdf:240: proposed dredge), however, shows relatively low levels of contamination in

NGCT_Final_ES at KK with figs.pdf:240: dredged. This is probably related to the continual removal of sediments via

NGCT_Final_ES at KK with figs.pdf:240: maintenance dredging that has occurred over the years.

NGCT_Final_ES at KK with figs.pdf:240: proposed capital dredge. In total, of the ten sites proposed, eight sites were

NGCT_Final_ES at KK with figs.pdf:240: sampled; two locations could not be sampled due to recent dredging activity

NGCT_Final_ES at KK with figs.pdf:240: dredging. These receptor areas correspond with sites that are designated for

NGCT_Final_ES at KK with figs.pdf:240: expectation that the presence of fine sediment, which has not been dredged

NGCT_Final_ES at KK with figs.pdf:240: compared with the main channel which has been extensively dredged in the

NGCT_Final_ES at KK with figs.pdf:240: characteristics of the material to be dredged to be compared with the

NGCT_Final_ES at KK with figs.pdf:243: 1. Contaminants within the sediments to be dredged can, depending on the

NGCT_Final_ES at KK with figs.pdf:253: 1. Due to the proximity of the proposed dredging works to the bathing waters,

NGCT_Final_ES at KK with figs.pdf:253: water column by dredging, dispersed by tidal currents and subsequently settles

NGCT_Final_ES at KK with figs.pdf:254: 4. The dispersion and deposition of sediment caused by the capital dredging is

NGCT_Final_ES at KK with figs.pdf:254: described in Section 6.3. Two types of dredger were considered in the plume

NGCT_Final_ES at KK with figs.pdf:254: dispersion studies; a Cutter Suction Dredger (CSD) dredging mudstone (which

NGCT_Final_ES at KK with figs.pdf:254: would generate fine material when dredged) in the channel in the vicinity of the

NGCT_Final_ES at KK with figs.pdf:254: reclamation) and a Trailing Suction Hopper Dredger (TSHD) dredging sand in

NGCT_Final_ES at KK with figs.pdf:254: simulation the runoff from the dredger pumping ashore at the reclamation site

NGCT_Final_ES at KK with figs.pdf:254: 5. The plume dispersion studies predict that, during the dredging of sand in the

NGCT_Final_ES at KK with figs.pdf:254: immediate vicinity of the dredger and elsewhere in the subtidal areas. At Seal

NGCT_Final_ES at KK with figs.pdf:254: 1mm for the duration of dredging in the lower channel. Fine material would only

NGCT_Final_ES at KK with figs.pdf:254: reach Seal Sands when dredging on spring tides.

NGCT_Final_ES at KK with figs.pdf:254: 6. Dredging using a CSD further upstream (e.g. in the vicinity of the reclamation)

NGCT_Final_ES at KK with figs.pdf:254: the dredger, with deposition of less than 5mm elsewhere in the subtidal area.

NGCT_Final_ES at KK with figs.pdf:255: and Seal Sands (Locations 3 and 4) for TSHD dredging sand in Tees

NGCT_Final_ES at KK with figs.pdf:256: 7. The deposition that is predicted in the immediate vicinity of the dredger is not

NGCT_Final_ES at KK with figs.pdf:256: capital dredging area (and would, therefore, already be significantly disturbed)

NGCT_Final_ES at KK with figs.pdf:256: and depositing sediment would be re-dredged. In addition, these areas are not

NGCT_Final_ES at KK with figs.pdf:256: the dredging operations is predicted to be a maximum of 1mm. The rate of

NGCT_Final_ES at KK with figs.pdf:256: 10. Notwithstanding the above, the capital dredging is likely to result in an overall

NGCT_Final_ES at KK with figs.pdf:256: to become finer. The net effect of the dredging, however, is not to introduce an

NGCT_Final_ES at KK with figs.pdf:256: dredging on receptor areas is considered to be low and the potential impact is

NGCT_Final_ES at KK with figs.pdf:256: sediment during capital dredging

NGCT_Final_ES at KK with figs.pdf:256: 1. The chemical contaminants of the areas to be dredged are described in Section

NGCT_Final_ES at KK with figs.pdf:257: 2. No dredging will be undertaken in the area behind the proposed quay wall (i.e.

NGCT_Final_ES at KK with figs.pdf:257: reclamation. Additionally, reclamation will be undertaken using dredged material

NGCT_Final_ES at KK with figs.pdf:257: those measured in the channel area. Sediments released during dredging from

NGCT_Final_ES at KK with figs.pdf:257: consequence of the dredging. This is particularly the case given that Seal

NGCT_Final_ES at KK with figs.pdf:257: Sands will only be affected by deposition during dredging of certain sections of

NGCT_Final_ES at KK with figs.pdf:257: deposition during dredging of the inner channel adjacent to the proposed

NGCT_Final_ES at KK with figs.pdf:257: 5. The impact of the capital dredging on sediment chemistry of the receptor sites at

NGCT_Final_ES at KK with figs.pdf:257: contaminated sediment during capital dredging

NGCT_Final_ES at KK with figs.pdf:257: from the dredging is likely to be significantly diluted before it reaches the

NGCT_Final_ES at KK with figs.pdf:258: maintenance dredging required as a consequence of the proposed development

NGCT_Final_ES at KK with figs.pdf:258: 1. The implications of the proposed scheme on the maintenance dredging strategy

NGCT_Final_ES at KK with figs.pdf:258: concluded that the effect of the scheme on the maintenance dredging will be

NGCT_Final_ES at KK with figs.pdf:258: of maintenance dredging that is required as a consequence of the proposed

NGCT_Final_ES at KK with figs.pdf:258: scheme given that the overall volume of material requiring dredging would not

NGCT_Final_ES at KK with figs.pdf:258: be significantly increased, its composition will be very similar to that dredged at

NGCT_Final_ES at KK with figs.pdf:258: present and no increase in the frequency of dredging will be required.

NGCT_Final_ES at KK with figs.pdf:282: 1. The capital dredging will result in the suspension of sediment into the water

NGCT_Final_ES at KK with figs.pdf:282: quality will also occur as a consequence of dewatering of dredged material that

NGCT_Final_ES at KK with figs.pdf:286: development and dredge area, Redcar Jetty is located within the dredge area

NGCT_Final_ES at KK with figs.pdf:293: capital dredging

NGCT_Final_ES at KK with figs.pdf:293: column by dredging; sediment will be dispersed by tidal currents and potentially

NGCT_Final_ES at KK with figs.pdf:294: 3. The effect of capital dredging on suspended sediment concentration has been

NGCT_Final_ES at KK with figs.pdf:294: predicted for dredging using a CSD in the channel in the vicinity of the

NGCT_Final_ES at KK with figs.pdf:294:Cutter Suction Dredger

NGCT_Final_ES at KK with figs.pdf:294: of the dredger; however, effects on suspended sediment concentrations are very

NGCT_Final_ES at KK with figs.pdf:294: localised to the area of the turning circle (see Figure 6.4). When the dredger is

NGCT_Final_ES at KK with figs.pdf:294: solids are predicted to occur within the immediate vicinity of the dredger, but the

NGCT_Final_ES at KK with figs.pdf:294: dredging in the Tees Dock turning circle. Suspended sediment concentrations

NGCT_Final_ES at KK with figs.pdf:294: 500m from the dredger are not, however, predicted to exceed levels

NGCT_Final_ES at KK with figs.pdf:294: remain on the same side of the channel as the barge receiving the dredged

NGCT_Final_ES at KK with figs.pdf:294:Trailing Suction Hopper Dredger

NGCT_Final_ES at KK with figs.pdf:294: 5. Results for the use of a TSHD dredging sand in the lower channel and during

NGCT_Final_ES at KK with figs.pdf:294: between 500mg/l and 1000mg/l are predicted along the dredger track.

NGCT_Final_ES at KK with figs.pdf:294: suspended sediment concentration arising during the dredging in the lower

NGCT_Final_ES at KK with figs.pdf:295: Channel and Seal Sands for a TSHD dredging sand in the approach

NGCT_Final_ES at KK with figs.pdf:296: 8. For both types of dredger (CSD and TSHD), peak suspended solids

NGCT_Final_ES at KK with figs.pdf:296: immediate vicinity of the dredger. This material is quickly dispersed either in the

NGCT_Final_ES at KK with figs.pdf:296: background within approximately 100m either side of the dredger when the

NGCT_Final_ES at KK with figs.pdf:296: dredger is located in the vicinity of the proposed reclamation.

NGCT_Final_ES at KK with figs.pdf:296: concentrations generated by dredging will lead to peak increases in

NGCT_Final_ES at KK with figs.pdf:296: location of the dredger.

NGCT_Final_ES at KK with figs.pdf:296:9.2.2 Resuspension of contaminants during capital dredging

NGCT_Final_ES at KK with figs.pdf:296: reclamation (and, therefore, will not be disturbed by dredging) the assessment of

NGCT_Final_ES at KK with figs.pdf:296: potential resuspension of contaminants focuses on the effect of capital dredging

NGCT_Final_ES at KK with figs.pdf:297: dredging areas is 4.8%. Table 9.8 summarises these values and calculates the

NGCT_Final_ES at KK with figs.pdf:298: concentrations in the proposed dredge area

NGCT_Final_ES at KK with figs.pdf:298: contaminants in the sediments within the dredging areas are below the

NGCT_Final_ES at KK with figs.pdf:298: 6. Dredging would release sediment into the overlying water column. The

NGCT_Final_ES at KK with figs.pdf:298: 7. For organotins, there is the potential for the dredging to increase concentrations

NGCT_Final_ES at KK with figs.pdf:299: 9. Overall, it is concluded that dredging would result in a short term, localised

NGCT_Final_ES at KK with figs.pdf:299: column as a result of the proposed dredging. The residual impact would

NGCT_Final_ES at KK with figs.pdf:299: dredging could potentially affect dissolved oxygen levels in the water. This is

NGCT_Final_ES at KK with figs.pdf:299: 2. In general, sediment plumes induced by dredging are considered to pose only a

NGCT_Final_ES at KK with figs.pdf:299: accommodate an increased oxygen demand; particularly where dredging occurs

NGCT_Final_ES at KK with figs.pdf:299: dredging is predicted to result in an impact of minor adverse significance on

NGCT_Final_ES at KK with figs.pdf:299: 4. It is not possible to mitigate the effect of the proposed dredging on dissolved

NGCT_Final_ES at KK with figs.pdf:299:9.2.4 Impact of dredging on designated bathing waters

NGCT_Final_ES at KK with figs.pdf:299: 1. The proposed capital dredging has the potential to disturb sediment and release

NGCT_Final_ES at KK with figs.pdf:300: disturbance of the sediments during dredging.

NGCT_Final_ES at KK with figs.pdf:300: lagoon could be drained and used as a disposal option for dredged material.

NGCT_Final_ES at KK with figs.pdf:301: turbidity during maintenance dredging

NGCT_Final_ES at KK with figs.pdf:301: 1. The implications of the proposed scheme on the maintenance dredging strategy

NGCT_Final_ES at KK with figs.pdf:301: concluded that the effect of the scheme on the maintenance dredging will be

NGCT_Final_ES at KK with figs.pdf:301: maintenance dredging that is required as a consequence of the proposed

NGCT_Final_ES at KK with figs.pdf:301: scheme given that the overall volume of material requiring dredging would not

NGCT_Final_ES at KK with figs.pdf:301: be significantly increased, its composition will be very similar to that dredged at

NGCT_Final_ES at KK with figs.pdf:301: present and no increase in the frequency of dredging will be required.

NGCT_Final_ES at KK with figs.pdf:302: on the substratum, particularly given that the effect of the proposed dredging on

NGCT_Final_ES at KK with figs.pdf:302: that PD Teesport could, in theory dredge, to 14.1m below CD by maintenance

NGCT_Final_ES at KK with figs.pdf:302: dredging and hence the effect of a further capital dredge to 14.5m below CD on

NGCT_Final_ES at KK with figs.pdf:311: Proposed Dredge Footprint

NGCT_Final_ES at KK with figs.pdf:313: consistent with the requirement for maintenance dredging of fine sediments in

NGCT_Final_ES at KK with figs.pdf:313: 2. It is expected that due to the requirement for maintenance dredging, there would

NGCT_Final_ES at KK with figs.pdf:314: Proposed Dredge Footprint PD Teesport

NGCT_Final_ES at KK with figs.pdf:319: Proposed Dredge Footprint PD Teesport

NGCT_Final_ES at KK with figs.pdf:320:Disturbance due to dredging

NGCT_Final_ES at KK with figs.pdf:320: dredging or storm activity) or chemical (e.g. organic enrichment), a proportion of

NGCT_Final_ES at KK with figs.pdf:320: in which maintenance dredging occurs. It can therefore be concluded that

NGCT_Final_ES at KK with figs.pdf:320: colonise the area in between dredging programmes.

NGCT_Final_ES at KK with figs.pdf:321: have been disturbed by maintenance dredging. Other numerous species

NGCT_Final_ES at KK with figs.pdf:321: dredging

NGCT_Final_ES at KK with figs.pdf:321: resource due to the capital dredging over an area of approximately 120ha,

NGCT_Final_ES at KK with figs.pdf:321: dredged. The area of seabed that will be dredged that is currently outside of the

NGCT_Final_ES at KK with figs.pdf:321: 2. The reclamation and capital dredging will impact on the benthic invertebrate

NGCT_Final_ES at KK with figs.pdf:322: Proposed Dredge Footprint Container Terminal

NGCT_Final_ES at KK with figs.pdf:323: the dredging. Additionally, numbers of species, abundance and biomass are

NGCT_Final_ES at KK with figs.pdf:323: species were recorded from within the proposed dredging area, with highest

NGCT_Final_ES at KK with figs.pdf:323: 5. Based on the above, the impact of the capital dredging and reclamation on the

NGCT_Final_ES at KK with figs.pdf:323: 6. The impact of capital dredging and reclamation on the subtidal benthic resource

NGCT_Final_ES at KK with figs.pdf:323: capital dredging within intertidal areas

NGCT_Final_ES at KK with figs.pdf:323: 1. During the capital dredging a proportion of the material that is dredged would be

NGCT_Final_ES at KK with figs.pdf:323: onto the seabed. The dispersion and deposition of fine material during dredging

NGCT_Final_ES at KK with figs.pdf:323: dredging of sand in the lower Tees estuary.

NGCT_Final_ES at KK with figs.pdf:323: 2. It is predicted that peak deposition during the capital dredging would be up to

NGCT_Final_ES at KK with figs.pdf:323: maximum depth of sediment deposition over the course of dredging sand will be

NGCT_Final_ES at KK with figs.pdf:323: However, it is predicted that a proportion of the dredged material would be

NGCT_Final_ES at KK with figs.pdf:324: net effect of the dredging and dispersive processes acting on the sediment

NGCT_Final_ES at KK with figs.pdf:324: that the proposed dredging would not give rise to the loss of a component of the

NGCT_Final_ES at KK with figs.pdf:324: Seal Sands. The dredging is not predicted to result in the deposition of

NGCT_Final_ES at KK with figs.pdf:325: capital dredging within subtidal areas

NGCT_Final_ES at KK with figs.pdf:325: 1. Capital dredging is predicted to result in the deposition of fine sediment within

NGCT_Final_ES at KK with figs.pdf:325: footprint of the dredging and, therefore, this area will be directly impacted by the

NGCT_Final_ES at KK with figs.pdf:325: dredging activity itself. The deposition of fine material within this area is

NGCT_Final_ES at KK with figs.pdf:325: dredging) peak deposition of up to 50mm is predicted (depending on location)

NGCT_Final_ES at KK with figs.pdf:325: that the dredging would result in a layer of fluid mud over the seabed which, over

NGCT_Final_ES at KK with figs.pdf:325: vicinity of the dredging activity could be tolerated by these species. Similarly,

NGCT_Final_ES at KK with figs.pdf:325: sediment concentrations) and the fact that the dredging is a temporary activity

NGCT_Final_ES at KK with figs.pdf:326: in the zone immediately around the dredging activity. It is concluded that the

NGCT_Final_ES at KK with figs.pdf:326: already removed due to the dredging itself and as such the increase in

NGCT_Final_ES at KK with figs.pdf:326: deposition of the sediments to be dredged. In summary, a comparison of the

NGCT_Final_ES at KK with figs.pdf:326: Sediment remobilised and deposited as a consequence of dredging in these

NGCT_Final_ES at KK with figs.pdf:327: be influenced by sediment deposition arising during dredging.

NGCT_Final_ES at KK with figs.pdf:327: when the dredger is located in the predominantly sandy areas of the main

NGCT_Final_ES at KK with figs.pdf:327: bacterial breakdown of remobilised organic matter during dredging. This could

NGCT_Final_ES at KK with figs.pdf:330: insignificant with respect to effect on the existing maintenance dredging strategy

NGCT_Final_ES at KK with figs.pdf:330: and no changes to maintenance dredging are necessary. As such, there would

NGCT_Final_ES at KK with figs.pdf:330: be no impact on marine communities as a result of the maintenance dredging

NGCT_Final_ES at KK with figs.pdf:330:10.3.5 Recovery of marine communities within the footprint of the capital dredging

NGCT_Final_ES at KK with figs.pdf:330: 1. The impact of capital dredging on the existing marine communities is described

NGCT_Final_ES at KK with figs.pdf:330: in Section 10.2. Following the completion of the dredging, the marine

NGCT_Final_ES at KK with figs.pdf:330: community of the dredge area would be expected to recolonise the impacted

NGCT_Final_ES at KK with figs.pdf:331: 2. Given that the navigation channel is dredged to underlying geological material,

NGCT_Final_ES at KK with figs.pdf:331: the proposed capital dredging would be expected to result in the exposure of a

NGCT_Final_ES at KK with figs.pdf:331: marine communities that colonise within the proposed dredge area would be

NGCT_Final_ES at KK with figs.pdf:331: significance, but it should be noted that the effect of the dredging overall (i.e.

NGCT_Final_ES at KK with figs.pdf:332: proposed development and dredging. For the purposes of this section,

NGCT_Final_ES at KK with figs.pdf:341: impacted by the capital dredging.

NGCT_Final_ES at KK with figs.pdf:350: construction phase as a result of noise and vibration caused by dredging and

NGCT_Final_ES at KK with figs.pdf:350:11.2.2 Direct loss of intertidal habitat due to reclamation and capital dredging

NGCT_Final_ES at KK with figs.pdf:350: waterbirds. The capital dredging, which involves dredging adjacent to the Vopak

NGCT_Final_ES at KK with figs.pdf:350: a result of the capital dredging. As a result, no impact on intertidal area is

NGCT_Final_ES at KK with figs.pdf:350: capital dredging.

NGCT_Final_ES at KK with figs.pdf:350: capital dredging and reclamation can influence the tidal propagation (tidal prism)

NGCT_Final_ES at KK with figs.pdf:351:11.2.4 Effect of sediment deposition on intertidal food resources due to capital dredging

NGCT_Final_ES at KK with figs.pdf:351: 1. The deposition of fine sediment within intertidal areas due to capital dredging

NGCT_Final_ES at KK with figs.pdf:351: deposition, rate of deposition and areas affected by the dredging, is presented in

NGCT_Final_ES at KK with figs.pdf:351: by deposition associated with capital dredging.

NGCT_Final_ES at KK with figs.pdf:351: food resources as a result of the effects of capital dredging and no impact is

NGCT_Final_ES at KK with figs.pdf:351: SPA and Ramsar citations. The capital dredging in the lower estuary is

NGCT_Final_ES at KK with figs.pdf:351: the dredger. In Tees Bay, increases in suspended sediment concentrations

NGCT_Final_ES at KK with figs.pdf:352: which would only occur during dredging in the outer reaches of the channel.

NGCT_Final_ES at KK with figs.pdf:352: 1. The disposal of dredged material in the Bran Sands lagoon would result in the

NGCT_Final_ES at KK with figs.pdf:353: 4. Where disposal at Bran Sands is proposed, some of the capital dredged material

NGCT_Final_ES at KK with figs.pdf:353: islands have previously been created using dredged material and these have,

NGCT_Final_ES at KK with figs.pdf:353: 6. Depending on the nature of the dredged material used to construct the islands,

NGCT_Final_ES at KK with figs.pdf:353: over time. The possibility of utilising material from other dredging projects that

NGCT_Final_ES at KK with figs.pdf:353: replenishment through periodic recharge with dredged material, the residual

NGCT_Final_ES at KK with figs.pdf:356:11.3.4 Potential effect of maintenance dredging on food resources for Annex I species

NGCT_Final_ES at KK with figs.pdf:356: shore area of Tees Bay. There is the potential for the maintenance dredging

NGCT_Final_ES at KK with figs.pdf:356: during dredging. This could cause the redistribution of small fish in the area.

NGCT_Final_ES at KK with figs.pdf:356: frequency of dredging above that which already occurs. The duration of each

NGCT_Final_ES at KK with figs.pdf:357: dredged material, including the options for disposal that have been considered.

NGCT_Final_ES at KK with figs.pdf:357: been excluded as an option for the disposal of dredged material.

NGCT_Final_ES at KK with figs.pdf:358: discounted as a possible disposal location for dredged material.

NGCT_Final_ES at KK with figs.pdf:360: communities within the Teesport Estate. The capital dredging would not directly

NGCT_Final_ES at KK with figs.pdf:361: this site be used for the disposal of dredged material (this is addressed in

NGCT_Final_ES at KK with figs.pdf:362: 1. The capital dredging has the potential to affect the Vopak foreshore area

NGCT_Final_ES at KK with figs.pdf:362: through disturbance due to the proximity of the dredger to the shoreline,

NGCT_Final_ES at KK with figs.pdf:362: particularly during the dredging required to realign the navigation channel in this

NGCT_Final_ES at KK with figs.pdf:362: dredging operation. The dredging is not a particularly noisy operation (i.e.

NGCT_Final_ES at KK with figs.pdf:362: similar to other shipping traffic in the estuary) and the dredging would be

NGCT_Final_ES at KK with figs.pdf:362: presence of commercial vessels and dredgers operating in the channel is an

NGCT_Final_ES at KK with figs.pdf:362: dredger is therefore predicted to be of negligible significance on breeding

NGCT_Final_ES at KK with figs.pdf:362: Sands lagoon if secured for the disposal of dredged material

NGCT_Final_ES at KK with figs.pdf:362: 1. The disposal of dredged material to Bran Sands lagoon would largely affect the

NGCT_Final_ES at KK with figs.pdf:362: estuary during the pumping ashore of dredged material. The ecological surveys

NGCT_Final_ES at KK with figs.pdf:363: interest associated with the disposal of dredged material in the lagoon would be

NGCT_Final_ES at KK with figs.pdf:369:13.2.1 Direct uptake and disturbance of fish during capital dredging

NGCT_Final_ES at KK with figs.pdf:369: 1. During the capital dredging there is the potential for fish eggs, fish , shellfish and

NGCT_Final_ES at KK with figs.pdf:369: the food resources on which they rely to be taken up directly by the dredger.

NGCT_Final_ES at KK with figs.pdf:369: by the dredging is not a spawning ground for fish species due to the fact that the

NGCT_Final_ES at KK with figs.pdf:369: directly affected area is already an intensively dredged navigation channel.

NGCT_Final_ES at KK with figs.pdf:369: 2. The disturbance caused by the dredge head is likely to cause the majority of fish

NGCT_Final_ES at KK with figs.pdf:369: to move away from the dredger, thereby avoiding direct uptake. Consequently,

NGCT_Final_ES at KK with figs.pdf:369: it is not expected that there would be significant uptake of fish during dredging

NGCT_Final_ES at KK with figs.pdf:369: suspended sediment concentrations (SSC) due to dredging and dewatering of

NGCT_Final_ES at KK with figs.pdf:369: concentration of the water column during capital dredging and during the return

NGCT_Final_ES at KK with figs.pdf:369: migration routes and to affect fish physiology. The capital dredging could

NGCT_Final_ES at KK with figs.pdf:370: 4. It is predicted that the increase in SSC arising during capital dredging would be

NGCT_Final_ES at KK with figs.pdf:370: dredger (see Section 9.2). Peak suspended solid concentrations in the main

NGCT_Final_ES at KK with figs.pdf:370: channel are however significantly affected by the location of the dredger. When

NGCT_Final_ES at KK with figs.pdf:370: immediate vicinity of the dredger (see Section 9.2). This occurs both laterally

NGCT_Final_ES at KK with figs.pdf:370: suspended solids also occurs when the dredger is located in the main channel

NGCT_Final_ES at KK with figs.pdf:370: dredging is particularly relevant if areas remain relatively unaffected, thereby

NGCT_Final_ES at KK with figs.pdf:370: allowing migration to continue. With respect to the proposed dredging,

NGCT_Final_ES at KK with figs.pdf:370: occur in the immediate vicinity of the dredger and along the streamline; however,

NGCT_Final_ES at KK with figs.pdf:370: dredging. It is concluded, therefore, that there could be temporary impacts on

NGCT_Final_ES at KK with figs.pdf:370: 7. It is recommended that PD Teesport programme the dredging to occur during

NGCT_Final_ES at KK with figs.pdf:370: dredging or due to decreases in dissolved oxygen in the water column should

NGCT_Final_ES at KK with figs.pdf:370: significant amounts of organic matter be released during dredging. The potential

NGCT_Final_ES at KK with figs.pdf:371: of some contaminants within the proposed dredged footprint. However, as

NGCT_Final_ES at KK with figs.pdf:371: 3. The potential impact of the dredging on dissolved oxygen concentration is

NGCT_Final_ES at KK with figs.pdf:371: dispersion afforded by a dynamic estuarine environment (i.e. the dredging will

NGCT_Final_ES at KK with figs.pdf:371: of the quality of the sediments to be dredged.

NGCT_Final_ES at KK with figs.pdf:371: dredging. Generally, fish detect and respond to sound to hunt for prey, avoid

NGCT_Final_ES at KK with figs.pdf:371: day basis. Noise generated by dredging is, therefore, unlikely to be of

NGCT_Final_ES at KK with figs.pdf:373: impact on the feeding resource for fish populations; the capital dredging and the

NGCT_Final_ES at KK with figs.pdf:373: dredging onto intertidal and subtidal areas.

NGCT_Final_ES at KK with figs.pdf:373: 3. Overall, the majority of the capital dredging is within the existing dredged

NGCT_Final_ES at KK with figs.pdf:373: this resource during dredging and reclamation would remove a proportion of the

NGCT_Final_ES at KK with figs.pdf:373: the dredged area, although there will be an overall net loss of approximately

NGCT_Final_ES at KK with figs.pdf:373: 5. The potential impact of dredging and reclamation of the food resource for fish

NGCT_Final_ES at KK with figs.pdf:375: Tees Bay. The approach channel has a dredged depth of 15.4m below CD from

NGCT_Final_ES at KK with figs.pdf:375: the channel is not dredged. Traffic in the Tees estuary is controlled by a

NGCT_Final_ES at KK with figs.pdf:375: berths are turned at the Tees Dock turning circle. The present dredged depth of

NGCT_Final_ES at KK with figs.pdf:375: arises due to the presence of the dredger within the navigation channel, the

NGCT_Final_ES at KK with figs.pdf:375: need for pipelines to pump dredged material ashore from the dredger and the

NGCT_Final_ES at KK with figs.pdf:375: the capital dredging will, at certain stages in the construction programme, affect

NGCT_Final_ES at KK with figs.pdf:376: the presence of the dredger will constrain the channel width, the potential

NGCT_Final_ES at KK with figs.pdf:376: conflict between the dredger and commercial shipping will be controlled through

NGCT_Final_ES at KK with figs.pdf:380: assessment area during dredging of the river (Site 21, Appendix 7). In the wider

NGCT_Final_ES at KK with figs.pdf:382: dredging.

NGCT_Final_ES at KK with figs.pdf:383: channel was dredged and the silts that were removed were used to reclaim the

NGCT_Final_ES at KK with figs.pdf:385: dredging on the potential archaeological resource

NGCT_Final_ES at KK with figs.pdf:385: dredging required to construct the new quay could disturb buried peat deposits

NGCT_Final_ES at KK with figs.pdf:385: 2. It is possible that the proposed dredging works and channel straightening will

NGCT_Final_ES at KK with figs.pdf:385: associated with capital dredging is considered to be low given that the majority is

NGCT_Final_ES at KK with figs.pdf:385: within an existing dredged channel.

NGCT_Final_ES at KK with figs.pdf:388: dredging and reclamation). A variety of plant will be sited in and around the

NGCT_Final_ES at KK with figs.pdf:388: with the presence of the dredger in various parts of the channel throughout the

NGCT_Final_ES at KK with figs.pdf:388: recreational activity is during the dredging that will take place close to the mouth

NGCT_Final_ES at KK with figs.pdf:388: duration of dredging in this area and particularly the fact that the dredging would

NGCT_Final_ES at KK with figs.pdf:389: 4. The movements of the dredger and other water-based aspects of the

NGCT_Final_ES at KK with figs.pdf:389: 2. Commercial vessels will be confined to navigating within the dredged channel

NGCT_Final_ES at KK with figs.pdf:407: concrete, piling, dredging, the noise from fixed and mobile plant on site, general

NGCT_Final_ES at KK with figs.pdf:409: • Noise data for dredging activities

NGCT_Final_ES at KK with figs.pdf:409: 14. Data for the dredging activities were derived from the Environmental Statement

NGCT_Final_ES at KK with figs.pdf:409: Dredging Dredger 1 50 109*

NGCT_Final_ES at KK with figs.pdf:412: such as dredging and general preparatory construction activities for the main

NGCT_Final_ES at KK with figs.pdf:412: 18:00 from Monday to Saturday; the dredging operations will occur 24 hours a

NGCT_Final_ES at KK with figs.pdf:412: day, 7 days a week. The noise source position for the dredger was taken to be

NGCT_Final_ES at KK with figs.pdf:412: a point source 3m above water level and the dredging operation has been

NGCT_Final_ES at KK with figs.pdf:412: representation of the dredging activities and with a higher on-time than might be

NGCT_Final_ES at KK with figs.pdf:412: impulsive nature of the impact noise. All plant other than the piling and dredging

NGCT_Final_ES at KK with figs.pdf:412: construction activity found that the dredging made no significant contribution to

NGCT_Final_ES at KK with figs.pdf:413: with piling and dredging) and Table 19.4 (results for those periods without piling

NGCT_Final_ES at KK with figs.pdf:413: and dredging). Existing ambient noise levels (LAeq) together with the predicted

NGCT_Final_ES at KK with figs.pdf:413:Table 19.3 Predicted free-field receiver noise levels with piling and dredging

NGCT_Final_ES at KK with figs.pdf:413: dredging, the predicted day-time construction noise levels are 9dB below

NGCT_Final_ES at KK with figs.pdf:413: and dredging and existing ambient noise levels

NGCT_Final_ES at KK with figs.pdf:413: dredging, at Corncroft Court, Bolckow Road and Wilton Avenue, the predicted

NGCT_Final_ES at KK with figs.pdf:418: capital dredging

NGCT_Final_ES at KK with figs.pdf:418: construct the quay and noise from capital dredging are the two aspects of the

NGCT_Final_ES at KK with figs.pdf:418: 4. Noise generated by dredging can be expected to give rise to a similar effect as

NGCT_Final_ES at KK with figs.pdf:418: the dredger noise levels could be such that damage to fish species could occur.

NGCT_Final_ES at KK with figs.pdf:418: In reality, fish will avoid such adverse conditions and so the dredging would

NGCT_Final_ES at KK with figs.pdf:418: result in a re-distribution of fish away from the dredger.

NGCT_Final_ES at KK with figs.pdf:418: maintenance dredging regime therefore, it would be expected that there will at

NGCT_Final_ES at KK with figs.pdf:420: the same as described above for dredging and fish will tend to exhibit avoidance

NGCT_Final_ES at KK with figs.pdf:429: a dredged deep water berth alongside. Capital dredging will be required to

NGCT_Final_ES at KK with figs.pdf:438: (B07C) included both construction plant and capital dredging emissions in

NGCT_Final_ES at KK with figs.pdf:438: Phase 1 of the development and construction plant. Capital dredging was

NGCT_Final_ES at KK with figs.pdf:449: dredgers and pipelines and associated lighting during night-time working.

NGCT_Final_ES at KK with figs.pdf:451: 4. The present dredged approach channel in the Tees estuary is at a depth of

NGCT_Final_ES at KK with figs.pdf:456: dredging the channel to the present declared depth account for approximately

NGCT_Final_ES at KK with figs.pdf:456: capital dredging represent a minor change. Overall, a potential impact of minor

NGCT_Final_ES at KK with figs.pdf:459: 1. The capital dredging, terminal construction and disposal of dredged material to

NGCT_Final_ES at KK with figs.pdf:459: 2. With respect to the capital dredging, the potential direct effect of the construction

NGCT_Final_ES at KK with figs.pdf:459: The first is located outside of the footprint of the capital dredging (upstream).

NGCT_Final_ES at KK with figs.pdf:459: Since these pipelines are not within the footprint of the capital dredging, no

NGCT_Final_ES at KK with figs.pdf:459: (the terminal was designed to avoid this Infrastructure). The capital dredging for

NGCT_Final_ES at KK with figs.pdf:459: beneath the dredged footprint and the maximum depth of dredging is 16m below

NGCT_Final_ES at KK with figs.pdf:459: are, therefore, too deep to be affected by capital dredging.

NGCT_Final_ES at KK with figs.pdf:459: capital dredging.

NGCT_Final_ES at KK with figs.pdf:459: process (British Energy, pers. comm). Since the dredging is to occur some

NGCT_Final_ES at KK with figs.pdf:460: settled out of suspension in the immediate vicinity of the dredger. No impact on

NGCT_Final_ES at KK with figs.pdf:460: dredger. No impact is predicted.

NGCT_Final_ES at KK with figs.pdf:461:23.3.1 Potential impact on Infrastructure due to maintenance dredging

NGCT_Final_ES at KK with figs.pdf:461: change the current maintenance dredging strategy and, therefore, no impact is

NGCT_Final_ES at KK with figs.pdf:461: same following the proposed channel dredging as at present, the prediction of

NGCT_Final_ES at KK with figs.pdf:461: 3. Since there is no requirement to change the existing maintenance dredging

NGCT_Final_ES at KK with figs.pdf:477:25 OFFSHORE DISPOSAL OF DREDGED MATERIAL

NGCT_Final_ES at KK with figs.pdf:477: for the disposal of material arising from the capital dredging. These scenarios

NGCT_Final_ES at KK with figs.pdf:477:Table 25.1 Summary of the two potential scenarios for the disposal of dredged

NGCT_Final_ES at KK with figs.pdf:477: section discusses the implications associated with the disposal of dredged

NGCT_Final_ES at KK with figs.pdf:477: 1. Under the preferred scenario A, the majority of the dredged material would be

NGCT_Final_ES at KK with figs.pdf:477: disposal sites that could potentially accept the dredged material (termed Tees

NGCT_Final_ES at KK with figs.pdf:477: 2. Both sites have historically been used for the disposal of dredged material and

NGCT_Final_ES at KK with figs.pdf:477: have received both capital and maintenance dredgings. ABPmer (2005) states

NGCT_Final_ES at KK with figs.pdf:477: dredged material, but has received quantities of maintenance material in some

NGCT_Final_ES at KK with figs.pdf:478: 1. Presently the annual maintenance dredge in the Tees Estuary is about

NGCT_Final_ES at KK with figs.pdf:478: detailed MAFF research project into the behaviour of dredged material. During

NGCT_Final_ES at KK with figs.pdf:478: dredging is undertaken in the estuary, from the hopper of the dredger and at the

NGCT_Final_ES at KK with figs.pdf:478: dredging is undertaken

NGCT_Final_ES at KK with figs.pdf:478: source of coal is a natural one rather than the dredgers transporting it to the site

NGCT_Final_ES at KK with figs.pdf:478: recently been placed by the Teesport TSHD dredgers. Only small amounts of

NGCT_Final_ES at KK with figs.pdf:479:25.4 Modelling of the dispersion of capital dredged material placed at the

NGCT_Final_ES at KK with figs.pdf:479: the barge or hopper from the dredging of the stiff clays and marl with CSD. This

NGCT_Final_ES at KK with figs.pdf:479: capital dredge disposal sites.

NGCT_Final_ES at KK with figs.pdf:479: undertaken by Dredging Research Ltd.

NGCT_Final_ES at KK with figs.pdf:479: placement of dredged material from the proposed works. There has been

NGCT_Final_ES at KK with figs.pdf:479: behaviour of maintenance dredged material at the inshore disposal site (Tees

NGCT_Final_ES at KK with figs.pdf:480: size of the small TSHD routinely undertaking the maintenance dredging in the

NGCT_Final_ES at KK with figs.pdf:480: Tees Estuary which is about 1,500m3, with the maintenance dredged material

NGCT_Final_ES at KK with figs.pdf:480: being fine. It can thus be seen that the capital dredging will result in far lower

NGCT_Final_ES at KK with figs.pdf:480: dredging. It can thus be concluded based on the detailed monitoring undertaken

NGCT_Final_ES at KK with figs.pdf:480: part of the proposed capital dredging will be significantly less than that

NGCT_Final_ES at KK with figs.pdf:480: associated with the disposal of maintenance dredged material.

NGCT_Final_ES at KK with figs.pdf:480: 4. To further illustrate the dispersion of fines from the capital dredging a flow field

NGCT_Final_ES at KK with figs.pdf:484: CSD at the offshore disposal sites arising from the dredging of stiff clay and

NGCT_Final_ES at KK with figs.pdf:486: maintenance dredging material covering a six week period during which a total

NGCT_Final_ES at KK with figs.pdf:486: of 92,500m3 of dredged material were placed, 60% of which were sands. This

NGCT_Final_ES at KK with figs.pdf:487: sandy sediment in the area would be expected during the dredging and disposal

NGCT_Final_ES at KK with figs.pdf:487: 1. Approximately 30% to 40% of the material arising from the dredging of stiff clay

NGCT_Final_ES at KK with figs.pdf:487: dredging, the effect of the disposal of fine material at the disposal sites is of

NGCT_Final_ES at KK with figs.pdf:487: minor significance. The capital dredging will result in far lower rates of

NGCT_Final_ES at KK with figs.pdf:487: dredging. Therefore, the physical effects of the material disposed at the site

NGCT_Final_ES at KK with figs.pdf:487: during capital dredging will be lower. There would be some short-term build up

NGCT_Final_ES at KK with figs.pdf:487: accumulation of coarser sediments arising from the dredging of stiff clay will

NGCT_Final_ES at KK with figs.pdf:488: of the licensed disposal sites as a consequence of the disposal of dredged

NGCT_Final_ES at KK with figs.pdf:488: of maintenance dredgings and there will be a negligible effect on suspended

NGCT_Final_ES at KK with figs.pdf:488: 1. The disposal of dredged material would be expected to result in an impact on

NGCT_Final_ES at KK with figs.pdf:488: 1. During the disposal of dredged material, there will be a requirement for the

NGCT_Final_ES at KK with figs.pdf:488: dredger and disposal barges to cross the navigation channel. There is,

NGCT_Final_ES at KK with figs.pdf:488: therefore, the potential for a conflict with navigation. However, the dredging and

NGCT_Final_ES at KK with figs.pdf:489: 1. The proposed approach for the disposal of dredged material is to dispose of

NGCT_Final_ES at KK with figs.pdf:489: offshore disposal of dredged material are considered given the existence of

NGCT_Final_ES at KK with figs.pdf:489: the disposal of dredged material. Should this lagoon be used for the disposal of

NGCT_Final_ES at KK with figs.pdf:489: the majority of the material arising from the dredging, the cost would be less

NGCT_Final_ES at KK with figs.pdf:489: than that associated with offshore disposal due to the lower dredge/dispose

NGCT_Final_ES at KK with figs.pdf:489: dredged material is the only practicable option for disposal.

NGCT_Final_ES at KK with figs.pdf:490:26.1 Monitoring associated with the container terminal and capital dredging

NGCT_Final_ES at KK with figs.pdf:490: 2. It is, however, proposed that maintenance dredging records are monitored by

NGCT_Final_ES at KK with figs.pdf:490: needs to be dredged during maintenance dredging and could be addressed

NGCT_Final_ES at KK with figs.pdf:490: specifically as part of the annual update to the Tees Maintenance Dredging

NGCT_Final_ES at KK with figs.pdf:490: 1. In view of the information regarding the potential effects of disposal of dredged

NGCT_Final_ES at KK with figs.pdf:490: monitoring would be to determine whether, and to what extent, dredged material

NGCT_Final_ES at KK with figs.pdf:490: prior to the disposal of dredged material, with repeat surveys undertaken on

NGCT_Final_ES at KK with figs.pdf:491: disposal of dredged material. The significance of each of the potential impacts

NGCT_Final_ES at KK with figs.pdf:492:dredging immediate vicinity of the dredger and in the vicinity of the of impact significance; the

NGCT_Final_ES at KK with figs.pdf:493:Effect on sediment transport The main predicted effect of the proposed capital dredging is None required See above

NGCT_Final_ES at KK with figs.pdf:494:capital dredging

NGCT_Final_ES at KK with figs.pdf:494:dredging

NGCT_Final_ES at KK with figs.pdf:494:dredging required as a

NGCT_Final_ES at KK with figs.pdf:495:dredging

NGCT_Final_ES at KK with figs.pdf:496:dredging

NGCT_Final_ES at KK with figs.pdf:496:maintenance dredging

NGCT_Final_ES at KK with figs.pdf:497:reclamation and dredging

NGCT_Final_ES at KK with figs.pdf:497:dredging within intertidal areas

NGCT_Final_ES at KK with figs.pdf:497:dredging within subtidal areas

NGCT_Final_ES at KK with figs.pdf:498:dredging

NGCT_Final_ES at KK with figs.pdf:498:of the capital dredging

NGCT_Final_ES at KK with figs.pdf:498:dredging

NGCT_Final_ES at KK with figs.pdf:499:dredging

NGCT_Final_ES at KK with figs.pdf:499:the Bran Sands lagoon during capital dredged material will be in the long term due to

NGCT_Final_ES at KK with figs.pdf:500:dredging on food resources for

NGCT_Final_ES at KK with figs.pdf:500:proposed terminal and dredging • Schedule reclamation

NGCT_Final_ES at KK with figs.pdf:500:dredged material

NGCT_Final_ES at KK with figs.pdf:501:of fish during capital dredging

NGCT_Final_ES at KK with figs.pdf:501:increases in suspended dredging to occur during the

NGCT_Final_ES at KK with figs.pdf:501:dredging and dewatering of the potential impacts on migratory

NGCT_Final_ES at KK with figs.pdf:502:dredging on the potential determine whether unknown

NGCT_Final_ES at KK with figs.pdf:505:capital dredging

NGCT_Final_ES at KK with figs.pdf:509:maintenance dredging

NGCT_Final_ES at KK with figs.pdf:510:DREDGED MATERIAL

NGCT_Final_ES at KK with figs.pdf:515:Little tern Sterna albifrons Yes ƒ Disturbance during capital dredging

NGCT_Final_ES at KK with figs.pdf:515:Knot Calidris canutus Yes ƒ Disturbance during capital dredging

NGCT_Final_ES at KK with figs.pdf:515: sediment deposition during dredging)

NGCT_Final_ES at KK with figs.pdf:515:Knot Calidris canutus Yes ƒ Disturbance during capital dredging

NGCT_Final_ES at KK with figs.pdf:515: sediment deposition during dredging)

NGCT_Final_ES at KK with figs.pdf:515:sandvicensis ƒ Disturbance during capital dredging

NGCT_Final_ES at KK with figs.pdf:518:Shallow coastal Food availability Presence and abundance of prey The capital dredging is predicted to N/A None Negligible No effect

NGCT_Final_ES at KK with figs.pdf:519: significantly from an established consequence of capital dredging, no

NGCT_Final_ES at KK with figs.pdf:524: • Capital dredging in the Seaton Channel (Able UK);

NGCT_Final_ES at KK with figs.pdf:525: quay 2) remain dredged to 10.9m below CD. The two Ro-Ro terminals at the

NGCT_Final_ES at KK with figs.pdf:525: head of Tees Dock are also dredged to 10.9m below CD.

NGCT_Final_ES at KK with figs.pdf:525: 8. The dredging of Tees Dock involved the removal of approximately 54,000m3 of

NGCT_Final_ES at KK with figs.pdf:525: quantity of the dredge. This scheme is, therefore, scoped out from the

NGCT_Final_ES at KK with figs.pdf:525: 10. This scheme involved the beneficial use of dredged material arising from

NGCT_Final_ES at KK with figs.pdf:525: maintenance dredging undertaken by PD Teesport. The aim of the scheme was

NGCT_Final_ES at KK with figs.pdf:526:Capital dredging in the Seaton Channel

NGCT_Final_ES at KK with figs.pdf:526: 15. RPS (2005) concludes that the dredging would result in increases in suspended

NGCT_Final_ES at KK with figs.pdf:526: Seaton Channel dredging with the dredging for the proposed Northern Gateway

NGCT_Final_ES at KK with figs.pdf:527: dredging -20.00

NGCT_Final_ES at KK with figs.pdf:527: TERRC dredging 0.00

NGCT_Final_ES at KK with figs.pdf:528: dredging 0.10

NGCT_Final_ES at KK with figs.pdf:528: TERRC dredging

NGCT_Final_ES at KK with figs.pdf:529: dredging 0.10

NGCT_Final_ES at KK with figs.pdf:529: TERRC dredging

NGCT_Final_ES at KK with figs.pdf:530: (scheme) (scheme+TERRC dredging)

NGCT_Final_ES at KK with figs.pdf:531: (scheme) (scheme+TERRC dredging)

NGCT_Final_ES at KK with figs.pdf:532: Scheme Scheme+TERRC dredging

NGCT_Final_ES at KK with figs.pdf:533: Scheme Scheme+TERRC dredging

NGCT_Final_ES at KK with figs.pdf:533: dredging campaigns focused around major vessel movements. In the 3 year

NGCT_Final_ES at KK with figs.pdf:533: period following a recent dredging campaign, siltation rates of approximately

NGCT_Final_ES at KK with figs.pdf:538:ABPmer (2005) Tees Maintenance Dredging Baseline Document. Report R.1149.

NGCT_Final_ES at KK with figs.pdf:538:aggregate dredging and marine construction. DEFRA research project report AE0914.

NGCT_Final_ES at KK with figs.pdf:538:CIRIA (2000) Scoping the assessment of sediment plumes from dredging. CIRIA

NGCT_Final_ES at KK with figs.pdf:539:Det Norske Veritas, (2004). Environmental assessment of dredging operations,

NGCT_Final_ES at KK with figs.pdf:539:Dredging Research Limited (2005) PD Teesport – Northern Gateway EIA, Dredging

NGCT_Final_ES at KK with figs.pdf:539:Halcrow (1991) Tees Estuary Dredging Review. Report for Tees and Hartlepool Port

NGCT_Final_ES at KK with figs.pdf:540:HR Wallingford (1992). Tees and Hartlepool Port Authority. Review of Dredging. EX

NGCT_Final_ES at KK with figs.pdf:540:HR Wallingford (1998). Properties of dredged material. Minipod deployments at the

Appendix 1Teesport HRO.pdf:1:7. Power to dredge

Appendix 1Teesport HRO.pdf:4:Power to dredge

Appendix 1Teesport HRO.pdf:4:affording access to the works by vessels from time to time deepen, dredge, scour, cleanse, alter

Appendix 1Teesport HRO.pdf:4:dredged by them.

20171212 EIA Scoping Response Teesport Extension Final.pdf:3: will comprise capital dredging, construction of a new quay wall, reclamation and

20171212 EIA Scoping Response Teesport Extension Final.pdf:3: new intermodal rail terminal, road modifications and the disposal of dredged

20171212 EIA Scoping Response Teesport Extension Final.pdf:5: The potential impact on water quality from the dredging works must be

20171212 EIA Scoping Response Teesport Extension Final.pdf:5: suspended sediments from the dredging activities.

20171212 EIA Scoping Response Teesport Extension Final.pdf:6: The SEIR should consider any potential impact of dredging upon migratory

20171212 EIA Scoping Response Teesport Extension Final.pdf:8: Clarification must be provided in the SEIR regarding any plans to use dredged

20171212 EIA Scoping Response Teesport Extension Final.pdf:8: The beneficial reuse of the dredged material within the Tees Estuary would be

20171212 MMO Letter with additional comments Teesport Scoping.pdf:2:of dredged site, other than the landside elements that have commenced, as

20171212 MMO Letter with additional comments Teesport Scoping.pdf:2:material a result of reusing dredged material, may require an

20171212 MMO Letter with additional comments Teesport Scoping.pdf:2: of dredging materials may be found on the GOV website, while

20171212 MMO Letter with additional comments Teesport Scoping.pdf:2: storage and re-use of dredged material, while the land raising

20171212 MMO Letter with additional comments Teesport Scoping.pdf:3:sediment quality samples and analysis of the dredge material may be required to

20171212 MMO Letter with additional comments Teesport Scoping.pdf:3: disposal of the dredged material.

MLA_2020_00079-APPLICATION-FORM.pdf:2:(which as noted above is 7th May 2028). Both the dredging and construction of the

MLA_2020_00079-APPLICATION-FORM.pdf:2:Dredging granular material from the lower reaches using a trailing suction hopper

MLA_2020_00079-APPLICATION-FORM.pdf:2:dredger is predicted to take between approximately 4 and 11 weeks. Dredging

MLA_2020_00079-APPLICATION-FORM.pdf:2:mudstone in the upper reaches using a cutter suction dredger is predicted to take

MLA_2020_00079-APPLICATION-FORM.pdf:2:CSD represents an upper bounding case for the purposes of the EIA. Dredging is to be

MLA_2020_00079-APPLICATION-FORM.pdf:4:of affording access to the works by vessels from time to time deepen, dredge, scour,

MLA_2020_00079-APPLICATION-FORM.pdf:4:Merchant Shipping Act 1995(a)), from time to time dredged by them.

MLA_2020_00079-APPLICATION-FORM.pdf:4:PDT also has power to dredge under the Tees and Hartlepool Port Authority Act 1966.

MLA_2020_00079-APPLICATION-FORM.pdf:4:proposed dredging works. A marine licence is, however, required for the other marine

MLA_2020_00079-APPLICATION-FORM.pdf:10:process for dredging?

MLA_2020_00079-APPLICATION-FORM.pdf:10:The accelerated licensing process applies to certain types of small-scale low-risk dredging activity.

MLA_2020_00079-APPLICATION-FORM.pdf:10: Dredging at RiverA. Create one site for RiverA and add dredging as an activity.

MLA_2020_00079-APPLICATION-FORM.pdf:10: Dredging and quay wall improvements at RiverA. Create 2 locations: one for the

MLA_2020_00079-APPLICATION-FORM.pdf:10: dredging in front of the new quay area and one for the quay wall improvements.

MLA_2020_00079-APPLICATION-FORM.pdf:10: Dredging at RiverA and removal of large concrete block within the dredge area.

MLA_2020_00079-APPLICATION-FORM.pdf:10: dredging.

MLA_2020_00079-APPLICATION-FORM.pdf:11:Offshore disposal of TEES BAY C Disposal of dredged

MLA_2020_00079-APPLICATION-FORM.pdf:11:dredged material material

MLA_2020_00079-APPLICATION-FORM.pdf:11:required following dredged material

MLA_2020_00079-APPLICATION-FORM.pdf:12:enhancement using dredged material

MLA_2020_00079-APPLICATION-FORM.pdf:12:dredged material

MLA_2020_00079-APPLICATION-FORM.pdf:12:Proposed dredge footprint

MLA_2020_00079-APPLICATION-FORM.pdf:12:TEES BAY C - Offshore disposal of dredged material

MLA_2020_00079-APPLICATION-FORM.pdf:12:Disposal of dredged material

MLA_2020_00079-APPLICATION-FORM.pdf:13:Offshore disposal of dredged material

MLA_2020_00079-APPLICATION-FORM.pdf:13:Disposal of up to 3,830,000m3 of capital dredged material with the Tees Bay C site. This

MLA_2020_00079-APPLICATION-FORM.pdf:13:dredged material from the proposed dredge footprint to the Tees Bay C offshore

MLA_2020_00079-APPLICATION-FORM.pdf:13:PDT's intention is to undertake the dredging and disposal activity using its own

MLA_2020_00079-APPLICATION-FORM.pdf:13:The dredging and disposal activity would be undertaken 24 hours a day. PDT's intention

MLA_2020_00079-APPLICATION-FORM.pdf:13:is to undertake the dredge and disposal incrementally throughout the lifespan of the

MLA_2020_00079-APPLICATION-FORM.pdf:13:licence, utilising its own dredging plant as far as possible. The overall durations for the

MLA_2020_00079-APPLICATION-FORM.pdf:13:proposed dredge and disposal activities, based on the predicted volumes of material

MLA_2020_00079-APPLICATION-FORM.pdf:13:Dredging granular material and clays using a TSHD is predicted to take between

MLA_2020_00079-APPLICATION-FORM.pdf:13:dredger.

MLA_2020_00079-APPLICATION-FORM.pdf:13:Dredging mudstone using a CSD or backhoe is predicted to take approximately 33

MLA_2020_00079-APPLICATION-FORM.pdf:13:dredger.

MLA_2020_00079-APPLICATION-FORM.pdf:14:Disposal of dredged material

MLA_2020_00079-APPLICATION-FORM.pdf:14: 2020 um) dredge

MLA_2020_00079-APPLICATION-FORM.pdf:15:Dredge details

MLA_2020_00079-APPLICATION-FORM.pdf:15:You should provide details of the dredge. This should include the methodology and location. If this has already been

MLA_2020_00079-APPLICATION-FORM.pdf:15:The proposed scheme requires capital dredging of the approach channel to the

MLA_2020_00079-APPLICATION-FORM.pdf:15:proposed NGCT, as well as creation of a new berth pocket. Dredging is also required to

MLA_2020_00079-APPLICATION-FORM.pdf:15:Dredging of granular superficial material is predicted to be undertaken using a TSHD,

MLA_2020_00079-APPLICATION-FORM.pdf:15:with dredging of mudstone and clays to be undertaken using a CSD or backhoe.

MLA_2020_00079-APPLICATION-FORM.pdf:15:Has the dredged material been analysed?

MLA_2020_00079-APPLICATION-FORM.pdf:15:within the proposed NGCT dredge footprint.

MLA_2020_00079-APPLICATION-FORM.pdf:15:The disposal of dredged material to sea should be considered a last resort. You should provide details of alternatives

MLA_2020_00079-APPLICATION-FORM.pdf:15:of dredged material have been considered.

MLA_2020_00079-APPLICATION-FORM.pdf:16:reclamation using dredged material.

MLA_2020_00079-APPLICATION-FORM.pdf:16:Should reclamation be undertaken, this will be carried out using dredged sands and

MLA_2020_00079-APPLICATION-FORM.pdf:18:Alternative use of dredged material

MLA_2020_00079-APPLICATION-FORM.pdf:19:A proportion of the material dredged from the Tees estuary (mainly granular material

MLA_2020_00079-APPLICATION-FORM.pdf:19:up to approximately 920,000m3 of dredged material would be used for reclamation.

MLA_2020_00079-APPLICATION-FORM.pdf:19:If required, the reclamation would be carried out using dredged granular materials

MLA_2020_00079-APPLICATION-FORM.pdf:19:(sands) and dredged mudstone. It is anticipated that granular material will be used

MLA_2020_00079-APPLICATION-FORM.pdf:19:It is anticipated that granular material will be dredged using a TSHD. This material will

MLA_2020_00079-APPLICATION-FORM.pdf:19:It is anticipated that mudstone will be dredged using a CSD or backhoe. This material

MLA_2020_00079-APPLICATION-FORM.pdf:19:(where dredging is being carried out on the same side of the river as the reclamation) or

MLA_2020_00079-APPLICATION-FORM.pdf:19:a sunken pipeline (where dredging is being carried out on the opposite side of the river

MLA_2020_00079-APPLICATION-FORM.pdf:20:either following construction of the new quay wall, if dredged material is to be placed

MLA_2020_00079-APPLICATION-FORM.pdf:20:directly behind the quay, or earlier if the dredged material is to be placed into settling

MLA_2020_00079-APPLICATION-FORM.pdf:20:The time required to dredge 1,100,000 m3 of granular material and clays is predicted to

MLA_2020_00079-APPLICATION-FORM.pdf:20:of the dredger. The time required to dredge 3,700,000m3 of mudstone will be

MLA_2020_00079-APPLICATION-FORM.pdf:20:approximately 33 weeks (however, this will be dependent on the size of the dredger).

MLA_2020_00079-APPLICATION-FORM.pdf:20:Dredging is to be undertaken 24 hours a day.

MLA_2020_00079-APPLICATION-FORM.pdf:20:Dredging and disposal is to be undertaken 24 hours a day.

MLA_2020_00079-APPLICATION-FORM.pdf:20:types has been made in the 'alternative use of dredged material' section below.

MLA_2020_00079-APPLICATION-FORM.pdf:21:Alternative use of dredged material

MLA_2020_00079-APPLICATION-FORM.pdf:21:A proportion of the material dredged from the Tees estuary (mainly granular material

MLA_2020_00079-APPLICATION-FORM.pdf:21:Dredge details

MLA_2020_00079-APPLICATION-FORM.pdf:21:You should provide details of the dredge. This should include the methodology and location. If this has already been

MLA_2020_00079-APPLICATION-FORM.pdf:21:Refer to the detail provided within the 'Disposal of dredged material' activity.

MLA_2020_00079-APPLICATION-FORM.pdf:21:Has the dredged material been analysed?

MLA_2020_00079-APPLICATION-FORM.pdf:21:Refer to the detail provided within the 'Disposal of dredged material' activity.

MLA_2020_00079-APPLICATION-FORM.pdf:23:Intervention area - Habitat enhancement using maintenance dredged material

MLA_2020_00079-APPLICATION-FORM.pdf:24:Alternative use of dredged material

MLA_2020_00079-APPLICATION-FORM.pdf:24:Habitat enhancement using maintenance dredged material

MLA_2020_00079-APPLICATION-FORM.pdf:24:beneficial use of maintenance dredged material as part of habitat enhancement works

MLA_2020_00079-APPLICATION-FORM.pdf:24:placed at the boundary of the existing intertidal. Maintenance dredged material,

MLA_2020_00079-APPLICATION-FORM.pdf:25:placed at the boundary of the existing intertidal. Maintenance dredged material,

MLA_2020_00079-APPLICATION-FORM.pdf:25:6,000m3 of maintenance dredged material to the TRT to allow the above habitat

MLA_2020_00079-APPLICATION-FORM.pdf:25:maintenance dredged material, the proposals represent habitat improvement to offset

MLA_2020_00079-APPLICATION-FORM.pdf:25:PDT has agreed to supply up to 6,000m3 of maintenance dredged material to the TRT to

MLA_2020_00079-APPLICATION-FORM.pdf:25:allow the above habitat enhancement works to be undertaken. Maintenance dredged

MLA_2020_00079-APPLICATION-FORM.pdf:25:material would be pumped onto the intertidal from the dredge vessel.

MLA_2020_00079-APPLICATION-FORM.pdf:25:maintenance dredged silt, thereby enhancing the ecological value of the intertidal from

MLA_2020_00079-APPLICATION-FORM.pdf:26:Alternative use of dredged material

MLA_2020_00079-APPLICATION-FORM.pdf:27:beneficial use of maintenance dredged material as part of habitat enhancement works

MLA_2020_00079-APPLICATION-FORM.pdf:27:placed at the boundary of the existing intertidal. Maintenance dredged material,

MLA_2020_00079-APPLICATION-FORM.pdf:27:6,000m3 of maintenance dredged material to the TRT to allow the above habitat

MLA_2020_00079-APPLICATION-FORM.pdf:27:dredged material, the proposals represent habitat improvement to offset the predicted

MLA_2020_00079-APPLICATION-FORM.pdf:27:Dredge details

MLA_2020_00079-APPLICATION-FORM.pdf:27:You should provide details of the dredge. This should include the methodology and location. If this has already been

MLA_2020_00079-APPLICATION-FORM.pdf:27:It is proposed that maintenance dredged material is used in this activity because its

MLA_2020_00079-APPLICATION-FORM.pdf:27:the capital dredging. While this does not, strictly, represent alternative use of dredged

MLA_2020_00079-APPLICATION-FORM.pdf:27:represent an alternative use for dredged material arising from maintenance dredging

MLA_2020_00079-APPLICATION-FORM.pdf:27:There is an existing requirement for maintenance dredging of the approach channel

MLA_2020_00079-APPLICATION-FORM.pdf:27:dredging regime is well-established, and the locations, volumes and frequency of

MLA_2020_00079-APPLICATION-FORM.pdf:27:dredging are well recorded. These various aspects of the existing maintenance

MLA_2020_00079-APPLICATION-FORM.pdf:27:dredging are discussed in detail in the Tees Maintenance Dredging Baseline Document

MLA_2020_00079-APPLICATION-FORM.pdf:27:Has the dredged material been analysed?

MLA_2020_00079-APPLICATION-FORM.pdf:28:As noted above, the existing maintenance dredging regime is well-established, and the

MLA_2020_00079-APPLICATION-FORM.pdf:28:locations, volumes and frequency of dredging are well recorded. PD Teesport

MLA_2020_00079-APPLICATION-FORM.pdf:28:maintenance dredge disposal licence (reference L/2015/00427/4). This mid-licence

MLA_2020_00079-APPLICATION-FORM.pdf:28:sampling ensures that the maintenance dredged material from the Tees estuary (and at

IBPB8270R001F01_EIA REPORT(2).pdf:6:24.2 Waste minimisation and beneficial use of dredged material 235

IBPB8270R001F01_EIA REPORT(2).pdf:6:24.3 Beneficial use of dredged material 236

IBPB8270R001F01_EIA REPORT(2).pdf:6:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL 239

IBPB8270R001F01_EIA REPORT(2).pdf:8: • Capital dredging of the approach channel to the proposed NGCT as well as creation of a new berth

IBPB8270R001F01_EIA REPORT(2).pdf:8: pocket (equating to dredging of up to 4.8 million m3 of material). Realignment of the existing

IBPB8270R001F01_EIA REPORT(2).pdf:8: • Disposal of dredged material (through a combination of beneficial re-use (localised reclamation and

IBPB8270R001F01_EIA REPORT(2).pdf:12: • Capital dredging of the approach channel to the NGCT as well as creation of a new berth pocket

IBPB8270R001F01_EIA REPORT(2).pdf:12: • Disposal of dredged material.

IBPB8270R001F01_EIA REPORT(2).pdf:12: the potential for reclamation with dredged material and beneficial re-use of dredged material for

IBPB8270R001F01_EIA REPORT(2).pdf:12:3.1.1 Capital dredging of the approach channel

IBPB8270R001F01_EIA REPORT(2).pdf:12:The footprint of the proposed capital dredging is illustrated in Figure 3.1. For the purposes of describing the

IBPB8270R001F01_EIA REPORT(2).pdf:12:proposed changes in depth of the various dredge areas, the dredge footprint has been divided into sections

IBPB8270R001F01_EIA REPORT(2).pdf:12:and the proposed declared depth following the capital dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:12:The total volume of material that will arise from the capital dredging will be up to 4.8 million m3. Based on

IBPB8270R001F01_EIA REPORT(2).pdf:12:previous investigations and capital dredging in the estuary, it is expected that, broadly, three material types

IBPB8270R001F01_EIA REPORT(2).pdf:12:would be dredged; relatively soft alluvial deposits (silt, clay and sand), Mercia mudstone (marl) and boulder

IBPB8270R001F01_EIA REPORT(2).pdf:12:channel and Seaton Channel turning circle have previously been dredged to a greater depth than the

IBPB8270R001F01_EIA REPORT(2).pdf:12:Additionally, there is a backlog of maintenance dredging in these areas with some parts of the channel at

IBPB8270R001F01_EIA REPORT(2).pdf:12:sand) to be dredged is expected to be small relative to the overall volume of the dredge given that the

IBPB8270R001F01_EIA REPORT(2).pdf:12:channel is already subject to maintenance dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:12:The dredging work can be divided into two phases as follows:

IBPB8270R001F01_EIA REPORT(2).pdf:12: Suction Hopper Dredger (TSHD). The material arising from the dredging would be used for

IBPB8270R001F01_EIA REPORT(2).pdf:13: • Phase 2 of the dredging involves the removal of mudstone using a Cutter Suction Dredger (CSD)

IBPB8270R001F01_EIA REPORT(2).pdf:13: and/or Backhoe Dredger (BD) loading into hopper barges. The material arising from this dredging

IBPB8270R001F01_EIA REPORT(2).pdf:13: 1m deep trenches would be dredged on the inside of the edge of the dredged channel in Area E.

IBPB8270R001F01_EIA REPORT(2).pdf:13: The trenches will be dredged 1m deeper than the main channel; therefore, their total depth will be

IBPB8270R001F01_EIA REPORT(2).pdf:13:Due to the high production rates required for the dredging, it is likely that the majority of the dredging would

IBPB8270R001F01_EIA REPORT(2).pdf:13:be undertaken by either a TSHD or CSD. Therefore, the use of these dredgers has been assumed for the

IBPB8270R001F01_EIA REPORT(2).pdf:13:plumes during dredging), particularly as the use of BD typically results in lower environmental impact relative

IBPB8270R001F01_EIA REPORT(2).pdf:13:In addition to the above, there may be a requirement to use a BD for small, confined areas of dredging, for

IBPB8270R001F01_EIA REPORT(2).pdf:13:example, alongside the existing quay wall, to dredge berth pockets or for construction of new quays.

IBPB8270R001F01_EIA REPORT(2).pdf:13:Maintenance dredging in the area of the capital dredge footprint will be kept to an absolute minimum during

IBPB8270R001F01_EIA REPORT(2).pdf:13:the capital dredging period and only essential maintenance works will be carried out.

IBPB8270R001F01_EIA REPORT(2).pdf:13: Area Channel section declared depth declared depth dredge

IBPB8270R001F01_EIA REPORT(2).pdf:13: be dredged (Mm3)

IBPB8270R001F01_EIA REPORT(2).pdf:13: Dredger (CSD)

IBPB8270R001F01_EIA REPORT(2).pdf:13: Dredge (BD)

IBPB8270R001F01_EIA REPORT(2).pdf:13: C Channel lower reach 14.1 14.5 0.85 (silts, clay and sand) Hopper Dredger

IBPB8270R001F01_EIA REPORT(2).pdf:14: Proposed dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:14: Proposed dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:15:Figure 3.2 Dredge areas for the proposed NGCT

IBPB8270R001F01_EIA REPORT(2).pdf:16:Figure 3.3 Typical section through channel sea reach in Area E of the NGCT dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:20:The reclamation, if required, will be carried out using dredged granular materials (sands) and dredged

IBPB8270R001F01_EIA REPORT(2).pdf:20:be used for reclamation above water level. For either solution, dredged granular material and mudstone will

IBPB8270R001F01_EIA REPORT(2).pdf:20:It is anticipated that granular material will be dredged from the lower reaches of the river using a TSHD.

IBPB8270R001F01_EIA REPORT(2).pdf:20:It is anticipated that mudstone will be dredged using a CSD and/or BD from the upper reach of the river

IBPB8270R001F01_EIA REPORT(2).pdf:20:(where dredging is being carried out on the same side of the river as the reclamation) or a sunken pipeline

IBPB8270R001F01_EIA REPORT(2).pdf:20:(where dredging is being carried out on the opposite side of the river to the reclamation) or (if a BD is used)

IBPB8270R001F01_EIA REPORT(2).pdf:20: • Reclamation will be carried out making beneficial use of dredged material.

IBPB8270R001F01_EIA REPORT(2).pdf:20:3.1.3 Disposal of dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:20:dredged material. The preferred option is to use up to approximately 920,000m3 of dredged material (mainly

IBPB8270R001F01_EIA REPORT(2).pdf:20:the terminal site (up to approximately 970,000m3). The remainder of the dredged material (soft alluvial

IBPB8270R001F01_EIA REPORT(2).pdf:21:It is anticipated that all granular material arising from the dredging would be used within the reclamation (if

IBPB8270R001F01_EIA REPORT(2).pdf:21:required). Additional granular material may arise from routine maintenance dredging. A total of

IBPB8270R001F01_EIA REPORT(2).pdf:21:required) and within the terminal area, other practicable beneficial uses of dredged material have been

IBPB8270R001F01_EIA REPORT(2).pdf:21:million m3 of dredged material in Bran Sands lagoon (which would reduce the volume of material required

IBPB8270R001F01_EIA REPORT(2).pdf:21:for offshore disposal). However, as mentioned in Section 1 of this report, the disposal of dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:21:disposal of dredged sediment in Bran Sands lagoon is therefore excluded from the proposed scheme

IBPB8270R001F01_EIA REPORT(2).pdf:28:maintenance dredged material as part of habitat enhancement works being proposed by the TRT within the

IBPB8270R001F01_EIA REPORT(2).pdf:28:at the boundary of the existing intertidal. Maintenance dredged material, supplied by PDT, would then be

IBPB8270R001F01_EIA REPORT(2).pdf:28:PDT has agreed to supply up to 6,000m 3 of maintenance dredged material to the TRT to allow the above

IBPB8270R001F01_EIA REPORT(2).pdf:28:habitat enhancement works to be undertaken. In addition to constituting a beneficial use of dredged

IBPB8270R001F01_EIA REPORT(2).pdf:29: Proposed dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:30:Dredging

IBPB8270R001F01_EIA REPORT(2).pdf:30:Due to the differences in the material to be dredged, it is likely that dredging in the lower reaches and

IBPB8270R001F01_EIA REPORT(2).pdf:30:dredging in the upper reaches will take place using different types of dredger. Consequently, there is the

IBPB8270R001F01_EIA REPORT(2).pdf:30:possibility that both dredgers could be operating simultaneously.

IBPB8270R001F01_EIA REPORT(2).pdf:30:construction of the new quay wall, if dredged material is to be placed directly behind the quay, or earlier if

IBPB8270R001F01_EIA REPORT(2).pdf:30:the dredged material is to be placed into settling basins and stockpiled on land prior to placement behind

IBPB8270R001F01_EIA REPORT(2).pdf:30:The TSHD production rate will depend upon the size of the dredger and is likely to be in the range 100,000

IBPB8270R001F01_EIA REPORT(2).pdf:30:m3 to 225,000 m3 per week. On this basis, the time required to dredge 1,100,000 m3 of granular material

IBPB8270R001F01_EIA REPORT(2).pdf:30:Dredging the mudstone in the upper reach of the channel using a CSD is likely to be at a production rate of

IBPB8270R001F01_EIA REPORT(2).pdf:30:approximately 110,000 m 3 per week. Hence the time required to dredge 3,700,000m3 is predicted to take

IBPB8270R001F01_EIA REPORT(2).pdf:30:approximately 33 weeks. It is anticipated that the timing of the CSD dredging operation will be managed so

IBPB8270R001F01_EIA REPORT(2).pdf:30:Dredging activity would be undertaken 24 hours a day.

IBPB8270R001F01_EIA REPORT(2).pdf:32:3.2.5 Maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:32:There is an existing requirement for maintenance dredging of the approach channel and various berthing

IBPB8270R001F01_EIA REPORT(2).pdf:32:pockets in the lower Tees estuary. The existing maintenance dredging regime is well-established, and the

IBPB8270R001F01_EIA REPORT(2).pdf:32:locations, volumes and frequency of dredging are well recorded. These various aspects of the existing

IBPB8270R001F01_EIA REPORT(2).pdf:32:maintenance dredging are discussed in detail in the Tees Maintenance Dredging Baseline Document (Royal

IBPB8270R001F01_EIA REPORT(2).pdf:32:maintenance dredging strategy (e.g. the annual volume dredged is not predicted to change significantly

IBPB8270R001F01_EIA REPORT(2).pdf:32:that maintenance dredged material would be disposed of at the existing disposal sites in Tees Bay, as

IBPB8270R001F01_EIA REPORT(2).pdf:33: • Approach channel and berthing pocket dredge depth

IBPB8270R001F01_EIA REPORT(2).pdf:33: • Disposal locations for dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:33:There is insufficient space for a development of the proposed scale at this location. Dredging a channel to

IBPB8270R001F01_EIA REPORT(2).pdf:36:dredging requirement associated with deepening the channel at the required depth up to this location. This

IBPB8270R001F01_EIA REPORT(2).pdf:36:location would be greater than for the proposed development given the increased volume of the dredge that

IBPB8270R001F01_EIA REPORT(2).pdf:36:arising from the proposed scheme, and probably greater as it is likely that the dredging requirement would

IBPB8270R001F01_EIA REPORT(2).pdf:36:Approach channel and berthing pocket dredge

IBPB8270R001F01_EIA REPORT(2).pdf:36:The proposed dredged depth of 14.5m below CD in the navigation channel has been chosen to maximise

IBPB8270R001F01_EIA REPORT(2).pdf:36:Dredging plant

IBPB8270R001F01_EIA REPORT(2).pdf:36:There is likely to be a requirement to utilise a number of different types of dredger depending on the nature

IBPB8270R001F01_EIA REPORT(2).pdf:36:of the material being dredged and the placement option for the material. Therefore, for different parts of the

IBPB8270R001F01_EIA REPORT(2).pdf:36:dredging it will be necessary to use a TSHD, CSD or BD. The environmental implications of using these

IBPB8270R001F01_EIA REPORT(2).pdf:36:dredgers have been assessed and no other alternatives exist that could undertake the work.

IBPB8270R001F01_EIA REPORT(2).pdf:36:Disposal of dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:36:A number of scenarios for the disposal of dredged material have been considered, each of which involves

IBPB8270R001F01_EIA REPORT(2).pdf:36:the placement of dredged material at a number of possible disposal (placement) locations.

IBPB8270R001F01_EIA REPORT(2).pdf:37: • Re-use of dredged material for habitat enhancement purposes.

IBPB8270R001F01_EIA REPORT(2).pdf:37:arising from the dredging of the lower channel and Seaton Channel turning circle and would allow the

IBPB8270R001F01_EIA REPORT(2).pdf:37:terminal to be constructed to the required level. This option for the beneficial use of dredged material (i.e.

IBPB8270R001F01_EIA REPORT(2).pdf:37:and, therefore, given that the capital dredging is expected to generate approximately 1 million m 3 of sand,

IBPB8270R001F01_EIA REPORT(2).pdf:37:option selected). A possible source is sandy material arising from routine maintenance dredging undertaken

IBPB8270R001F01_EIA REPORT(2).pdf:37:for the balance of the capital dredged material (up to approximately 3.8 million m 3 given that the total dredge

IBPB8270R001F01_EIA REPORT(2).pdf:37:A further advantage of the disposal of dredged material within the Teesport Estate is its close proximity to

IBPB8270R001F01_EIA REPORT(2).pdf:37:part of the proposed dredge area and, therefore, the dredged material can be piped directly to the site.

IBPB8270R001F01_EIA REPORT(2).pdf:37:No other areas within the Teesport Estate have been considered for the disposal of dredged material, largely

IBPB8270R001F01_EIA REPORT(2).pdf:37:due to the absence of areas of suitable size. Disposal of the dredged material on a constrained area of land

IBPB8270R001F01_EIA REPORT(2).pdf:37:dredged material at this site could represent the beneficial use of dredged material, in that the material

IBPB8270R001F01_EIA REPORT(2).pdf:38:dredged material has been excluded from the scheme and is not considered further in the EIA.

IBPB8270R001F01_EIA REPORT(2).pdf:38:channel dredging (Tees Bay C and Tees Bay A). Both of these sites have historically received capital and

IBPB8270R001F01_EIA REPORT(2).pdf:38:maintenance dredged material. It is proposed that dredged material (arising largely from the dredging of

IBPB8270R001F01_EIA REPORT(2).pdf:38:This EIA Report assesses the potential impacts associated with the disposal of dredged material at the Tees

IBPB8270R001F01_EIA REPORT(2).pdf:38:Re-use of dredged material for habitat enhancement purposes

IBPB8270R001F01_EIA REPORT(2).pdf:38:(possibly doubling as little tern nesting islands) could be created using the dredged material from Hartlepool

IBPB8270R001F01_EIA REPORT(2).pdf:38:suitable locations for the re-use of dredged sediment; three were located adjacent to the South Gare

IBPB8270R001F01_EIA REPORT(2).pdf:38:scheme by beneficially re-using dredged material would be welcomed.

IBPB8270R001F01_EIA REPORT(2).pdf:38:It is considered that such beneficial re-use of dredged material from the NGCT could also represent a

IBPB8270R001F01_EIA REPORT(2).pdf:38:PDT will continue to investigate the option of creating bird islands using dredged material (i.e. not

IBPB8270R001F01_EIA REPORT(2).pdf:38:Partnership. Such creation of bird islands at the mouth of the Tees (or any beneficial use of dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:38:in the marine environment) would require a separate marine licence application to deposit dredged material,

IBPB8270R001F01_EIA REPORT(2).pdf:38:intertidal habitat downstream of Newport Bridge through the placement of dredged material (this area is

IBPB8270R001F01_EIA REPORT(2).pdf:38:included within the marine licence application area). It is proposed that maintenance dredged material is

IBPB8270R001F01_EIA REPORT(2).pdf:38:arising from the capital dredging. While this does not, strictly, represent alternative use of dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:39:predicted impact of NGCT on intertidal habitat and would represent an alternative use for dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:39:arising from maintenance dredging activity in the Tees.

IBPB8270R001F01_EIA REPORT(2).pdf:39:In light of the above, there are a number of possible scenarios for the disposal of capital dredged material.

IBPB8270R001F01_EIA REPORT(2).pdf:39:dredged material would be disposed of through a combination of sea disposal and land raising, without the

IBPB8270R001F01_EIA REPORT(2).pdf:39:need for reclamation using 920,000m 3 of dredged material).

IBPB8270R001F01_EIA REPORT(2).pdf:41: and of affording access to the works by vessels from time to time deepen, dredge,

IBPB8270R001F01_EIA REPORT(2).pdf:41: IX of the Merchant Shipping Act 1995(a)), from time to time dredged by them.

IBPB8270R001F01_EIA REPORT(2).pdf:41:It is therefore concluded that a marine licence from the MMO is not required for the proposed dredging

IBPB8270R001F01_EIA REPORT(2).pdf:41: • Offshore disposal of dredged material.

IBPB8270R001F01_EIA REPORT(2).pdf:41: • Use of dredged material to undertake the proposed reclamation works (i.e. a deposit below MHWS).

IBPB8270R001F01_EIA REPORT(2).pdf:41: • Placement / pumping of maintenance dredged material onto the intertidal area downstream of

IBPB8270R001F01_EIA REPORT(2).pdf:41:The proposed dredge footprint is located within an area which is subject to maintenance dredging by PDT

IBPB8270R001F01_EIA REPORT(2).pdf:41:(under licence L/2015/00427/1). No changes to the maintenance dredge disposal licence held by PDT are

IBPB8270R001F01_EIA REPORT(2).pdf:41:a variation request the maintenance dredge disposal licence submitted to the MMO, if required.

IBPB8270R001F01_EIA REPORT(2).pdf:43:Options for the disposal of waste (i.e. the material to be dredged from the approach channel) have been

IBPB8270R001F01_EIA REPORT(2).pdf:43:Possible alternative options for dredged material have been presented in Section 3.3.

IBPB8270R001F01_EIA REPORT(2).pdf:45: • Policy NE-DD-3 – proposals for the disposal of dredged material must demonstrate that they have

IBPB8270R001F01_EIA REPORT(2).pdf:56: • Maintenance Dredging – the Maintenance Dredging Baseline Document (Royal Haskoning, 2008)

IBPB8270R001F01_EIA REPORT(2).pdf:56: provided information about the maintenance dredging material regularly removed from the Tees

IBPB8270R001F01_EIA REPORT(2).pdf:56: estuary (and the potential implications of maintenance dredging and disposal for European and

IBPB8270R001F01_EIA REPORT(2).pdf:56: Ramsar sites). This report is updated annually through the Tees Maintenance Dredging Annual

IBPB8270R001F01_EIA REPORT(2).pdf:56: Review, the latest version of which relates to maintenance dredging in 2018.

IBPB8270R001F01_EIA REPORT(2).pdf:56: further information about maintenance dredging regimes and materials arising from the

IBPB8270R001F01_EIA REPORT(2).pdf:56: Maintenance Dredging Baseline Document (Royal Haskoning, 2008). The dredge technique that

IBPB8270R001F01_EIA REPORT(2).pdf:56: dredging) differs to those to be used for NGCT (trailing suction hopper dredger and cutter suction)

IBPB8270R001F01_EIA REPORT(2).pdf:57: predictions of possible effects from the proposed dredging operations (required for the Tees Dock

IBPB8270R001F01_EIA REPORT(2).pdf:57:since 2006 is that presented in the Tees Maintenance Dredging Annual Reviews. As a consequence of

IBPB8270R001F01_EIA REPORT(2).pdf:57:is dredged annually as maintenance activities (average from 2001 to 2018). This comprises around

IBPB8270R001F01_EIA REPORT(2).pdf:57:2006 ES was written. The only significant project undertaken has been the dredging and re-strengthening

IBPB8270R001F01_EIA REPORT(2).pdf:58:Other than the above information on maintenance dredging regimes, there are equally no significant new

IBPB8270R001F01_EIA REPORT(2).pdf:58:PDT will continue to undertake maintenance dredging of the river to maintain the advertised dredge depths,

IBPB8270R001F01_EIA REPORT(2).pdf:59: from capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:59:The capital dredging will involve dredging (generally) sand in the lower channel and Mercia mudstone (marl)

IBPB8270R001F01_EIA REPORT(2).pdf:59:in the channel in the vicinity of the NGCT. The total volume of dredged material is predicted to be

IBPB8270R001F01_EIA REPORT(2).pdf:59:approximately 4.8 million m3. The dredging (and placement of dredged material at the reclamation site, if

IBPB8270R001F01_EIA REPORT(2).pdf:59:required) will generate a plume of sediment in the water column. The simulated dredge locations and the

IBPB8270R001F01_EIA REPORT(2).pdf:59:background concentrations (up to 1000mg/l) occurs within the immediate vicinity of the dredger (with

IBPB8270R001F01_EIA REPORT(2).pdf:59:Figure 6.1 Simulated dredge locations for CSD and TSHD and sensitive receptor points

IBPB8270R001F01_EIA REPORT(2).pdf:59:to be greatest in the immediate vicinity of the dredger (see Figure 6.2 to 6.4). Much of the material is

IBPB8270R001F01_EIA REPORT(2).pdf:59:therefore predicted to deposit within the area of the proposed dredge footprint and would be re-dredged or

IBPB8270R001F01_EIA REPORT(2).pdf:59:would deposit within an already dredged area.

IBPB8270R001F01_EIA REPORT(2).pdf:60:For dredging in the Seaton Channel area, deposition is predicted to occur on Seal Sands, however, depths

IBPB8270R001F01_EIA REPORT(2).pdf:60:are predicted to be fractions of a millimetre (up to 0.05mm over three tides) (Figure 6.5). The dredging is

IBPB8270R001F01_EIA REPORT(2).pdf:60:for deposition in Seaton Channel. The dredging is predicted to have little influence on suspended solid

IBPB8270R001F01_EIA REPORT(2).pdf:61:Figure 6.2 Peak concentration and peak deposition for cutter suction dredger at location 1, spring tide,

IBPB8270R001F01_EIA REPORT(2).pdf:62:Figure 6.3 Peak concentration and peak deposition for cutter suction dredger at location 2 spring tide,

IBPB8270R001F01_EIA REPORT(2).pdf:63:Figure 6.4 Peak concentration and peak deposition for TSHD dredging sand in the approach channel,

IBPB8270R001F01_EIA REPORT(2).pdf:64:(Locations 3 and 4) for TSHD dredging sand in the approach channel, spring tide, low flow conditions

IBPB8270R001F01_EIA REPORT(2).pdf:65:(Locations 3 and 4) for TSHD dredging sand in the approach channel and runoff from the reclamation site,

IBPB8270R001F01_EIA REPORT(2).pdf:66:Figure 6.7 Time histories of concentration at Bran and North Gare Sands for TSHD dredging sand in

IBPB8270R001F01_EIA REPORT(2).pdf:67:During the capital dredging works, other port facilities would remain operational. Maintenance dredging is,

IBPB8270R001F01_EIA REPORT(2).pdf:67:therefore, expected to continue throughout the capital dredge period. The capital dredge is also expected

IBPB8270R001F01_EIA REPORT(2).pdf:67:to influence maintenance dredging requirements during and immediately after the period of construction.

IBPB8270R001F01_EIA REPORT(2).pdf:67:However, dredging of the lower reaches of the river to remove sands driven into the mouth of the river,

IBPB8270R001F01_EIA REPORT(2).pdf:67:represents the main maintenance dredging operation undertaken by PDT on the Tees. The capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:67:also requires the dredging of sands from the lower reaches of the river, which are to be used in the

IBPB8270R001F01_EIA REPORT(2).pdf:67:reclamation behind the new quay wall. When capital dredging of the lower reaches is being undertaken,

IBPB8270R001F01_EIA REPORT(2).pdf:67:therefore, this will negate a large proportion of the requirement for maintenance dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:67:As a consequence, PDT would use this opportunity to undertake maintenance dredging elsewhere, for

IBPB8270R001F01_EIA REPORT(2).pdf:67:areas which are close to where the dredging for sands will be taking place. If required, PDT would keep

IBPB8270R001F01_EIA REPORT(2).pdf:67:the in-combination effects of the capital and maintenance dredging have been considered through a model

IBPB8270R001F01_EIA REPORT(2).pdf:67:The capital dredging scenario used in the model was a large (6,000m 3 capacity) TSHD removing material

IBPB8270R001F01_EIA REPORT(2).pdf:67:dredge. In addition, a potential ‘worst’ case for supply of material to Seal Sands from maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:67:was identified. This is deemed to be the situation when short-term maintenance dredging is required in the

IBPB8270R001F01_EIA REPORT(2).pdf:67:maintenance dredging would be carried out by a small TSHD (approximating to PDT’s TSHD Heortnesse).

IBPB8270R001F01_EIA REPORT(2).pdf:67:Due to the similarity of the mid to far-field effects of a plume created by the CSD dredging in the upper

IBPB8270R001F01_EIA REPORT(2).pdf:67:dredging. The model was used to simulate the dredging scenario during a spring tide with low river flow.

IBPB8270R001F01_EIA REPORT(2).pdf:67:The simulation was run for three tidal cycles with the dredgers releasing fine material (less than 60 microns)

IBPB8270R001F01_EIA REPORT(2).pdf:67:The dredger and sediment parameters used for the simulation were:

IBPB8270R001F01_EIA REPORT(2).pdf:67:Cutter suction dredger (comparable to maintenance dredging)

IBPB8270R001F01_EIA REPORT(2).pdf:68:Large Trailing Suction Hopper Dredger (6,000m3 capacity, capital dredging) -

IBPB8270R001F01_EIA REPORT(2).pdf:68: • Dredge cycle time = 190 mins

IBPB8270R001F01_EIA REPORT(2).pdf:68: • Total dredge time = 60 mins

IBPB8270R001F01_EIA REPORT(2).pdf:68: • Speed of dredger when working = 0.75 m/s (1.5 knots)

IBPB8270R001F01_EIA REPORT(2).pdf:68:maintenance dredging activity in the Seaton Channel turning circle during the capital dredging is not

IBPB8270R001F01_EIA REPORT(2).pdf:68:maintenance dredging. The overall footprint of the concentration and deposition on Seal Sands is very

IBPB8270R001F01_EIA REPORT(2).pdf:68:similar to that for the capital dredge alone. However, the area of peak concentration greater than 50 mg/l

IBPB8270R001F01_EIA REPORT(2).pdf:68:is increased by the inclusion of the maintenance dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:68:maintenance dredging is discernible in the time series of concentration, the results are not significantly

IBPB8270R001F01_EIA REPORT(2).pdf:68:an increase compared to the capital dredging alone, but the resultant increases in deposition remain less

IBPB8270R001F01_EIA REPORT(2).pdf:69:Figure 6.8 Peak concentration and peak deposition for combined capital and maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:70:maintenance dredging scenario, spring tide, low flow conditions

IBPB8270R001F01_EIA REPORT(2).pdf:71:maintenance dredging scenario, spring tide, low flow conditions

IBPB8270R001F01_EIA REPORT(2).pdf:73:proposed dredged trenches at the edges of the channel.

IBPB8270R001F01_EIA REPORT(2).pdf:73:swell height of 6m (return period of 1 in 1 year) will be reflected on the side of the dredged channel and

IBPB8270R001F01_EIA REPORT(2).pdf:73:maintenance dredging that exists at this location. A sensitivity test was therefore performed to illustrate the

IBPB8270R001F01_EIA REPORT(2).pdf:73:Changes to the cross-sectional area of an estuary due to capital dredging and reclamation can influence

IBPB8270R001F01_EIA REPORT(2).pdf:74:The main potential for effect on intertidal areas is predicted at Seal Sands. During the dredging, about 3%

IBPB8270R001F01_EIA REPORT(2).pdf:74:of the material dredged in the outer channel is predicted to deposit on Seal Sands. This is a minor effect

IBPB8270R001F01_EIA REPORT(2).pdf:75: capital dredging, reclamation and piling.

IBPB8270R001F01_EIA REPORT(2).pdf:75: dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:76: of the dredged material may be required to assess the suitability for disposal at Section 7.1.2 and Section 7.3.

IBPB8270R001F01_EIA REPORT(2).pdf:76: empower the holders to dredge, which has the potential to disturb and re-distribute the SEIR has been provided following an

IBPB8270R001F01_EIA REPORT(2).pdf:76:are predicted to occur (e.g. sediment plumes generated during capital dredging and effects on tidal currents

IBPB8270R001F01_EIA REPORT(2).pdf:76:samples within and adjacent to the proposed dredge envelope (see Figure 7.1). The MMO confirmed that

IBPB8270R001F01_EIA REPORT(2).pdf:77: Proposed dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:77: F C9 C10 Dredge sectors

IBPB8270R001F01_EIA REPORT(2).pdf:78:dredge disposal licence (L/2015/00427/1). As the maintenance dredge footprint extends beyond the NGCT

IBPB8270R001F01_EIA REPORT(2).pdf:78:dredge footprint, the results from the 37 samples were supplemented with the findings of 10 surface samples

IBPB8270R001F01_EIA REPORT(2).pdf:78:collected in December 2018 within the Tees upstream of the NGCT dredge footprint (as well as six surface

IBPB8270R001F01_EIA REPORT(2).pdf:78:across the full maintenance dredge footprint in the Tees.

IBPB8270R001F01_EIA REPORT(2).pdf:78: • Cefas Guideline Action Levels for the disposal of dredged material (Cefas, 2000); and,

IBPB8270R001F01_EIA REPORT(2).pdf:78:The Action Levels are used as part of a ‘weight of evidence’ approach to assessing the suitability of dredged

IBPB8270R001F01_EIA REPORT(2).pdf:78:unsuitable for disposal at sea. Dredged material with contaminant concentrations between Action Level 1

IBPB8270R001F01_EIA REPORT(2).pdf:80:The potential impacts associated with the proposed offshore disposal of dredged material are considered in

IBPB8270R001F01_EIA REPORT(2).pdf:83:requirements on PDT’s maintenance dredge disposal licence (reference L/2015/00427). The MMO did not

IBPB8270R001F01_EIA REPORT(2).pdf:83:apply any exclusion zones to the maintenance dredge disposal licence following review of the PDBE results.

IBPB8270R001F01_EIA REPORT(2).pdf:83:project comprised recovery of six surface samples from the proposed dredge footprint for that scheme (as

IBPB8270R001F01_EIA REPORT(2).pdf:85:location within the proposed Tees GasPort dredge footprint. Minor exceedances of Action Level 1 were

IBPB8270R001F01_EIA REPORT(2).pdf:86:13 surface samples from within and adjacent to the proposed dredge footprint for the NGCT scheme.

IBPB8270R001F01_EIA REPORT(2).pdf:86:proposed dredge, as well as that at a number of ‘receptor sites’ where the dredged material could ultimately

IBPB8270R001F01_EIA REPORT(2).pdf:90:undertake maintenance dredging of the river to maintain the advertised dredge depths, with mid-licence

IBPB8270R001F01_EIA REPORT(2).pdf:90:dredge disposal licence (to ensure that the maintenance dredged material remains suitable for offshore

IBPB8270R001F01_EIA REPORT(2).pdf:90: dredging

IBPB8270R001F01_EIA REPORT(2).pdf:90:Remobilisation and dispersion of sediment during capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:90:As described within Section 3, the construction phase of the proposed scheme involves capital dredging of

IBPB8270R001F01_EIA REPORT(2).pdf:90:as well as the re-use of dredged material within the reclamation process.

IBPB8270R001F01_EIA REPORT(2).pdf:91:The analysis of sediment quality samples recovered from within the proposed dredge footprint has shown

IBPB8270R001F01_EIA REPORT(2).pdf:91:The effect of capital dredging on SSC has been predicted for dredging using a CSD in the channel in the

IBPB8270R001F01_EIA REPORT(2).pdf:91:Cutter suction dredger

IBPB8270R001F01_EIA REPORT(2).pdf:91:predicted in the immediate vicinity of the dredger; however, effects on SSC are very localised to the area of

IBPB8270R001F01_EIA REPORT(2).pdf:91:the turning circle (see Figure 6.3). When the dredger is located in the area of the proposed quay wall, peak

IBPB8270R001F01_EIA REPORT(2).pdf:91:SSC are predicted to occur within the immediate vicinity of the dredger, but the sediment plume spreads

IBPB8270R001F01_EIA REPORT(2).pdf:91:further afield (along the tidal axis) compared to dredging in the Tees Dock turning circle. Suspended

IBPB8270R001F01_EIA REPORT(2).pdf:91:sediment concentrations 500m from the dredger are not, however, predicted to exceed levels experienced

IBPB8270R001F01_EIA REPORT(2).pdf:91:as the barge receiving the dredged material.

IBPB8270R001F01_EIA REPORT(2).pdf:92:Trailing suction hopper dredger

IBPB8270R001F01_EIA REPORT(2).pdf:92:Results for the use of a TSHD dredging sand in the lower channel and during reclamation show that peak

IBPB8270R001F01_EIA REPORT(2).pdf:92:increases in SSC of between 500mg/l and 1000mg/l above background are predicted along the dredger

IBPB8270R001F01_EIA REPORT(2).pdf:92:Figure 6.6 illustrates the predicted peak increases and time histories of SSC arising during the dredging in

IBPB8270R001F01_EIA REPORT(2).pdf:92:For both types of dredger (CSD and TSHD), peak SSC (i.e. up to 500mg/l above background) are predicted

IBPB8270R001F01_EIA REPORT(2).pdf:92:in the immediate vicinity of the dredger. This material is predicted to be quickly dispersed either in the water

IBPB8270R001F01_EIA REPORT(2).pdf:92:background within approximately 100m either side of the dredger when the dredger is located in the vicinity

IBPB8270R001F01_EIA REPORT(2).pdf:92:It can, therefore, be concluded that the predicted suspended solids concentrations generated by dredging

IBPB8270R001F01_EIA REPORT(2).pdf:92:of the peaks related to both tidal influence and location of the dredger.

IBPB8270R001F01_EIA REPORT(2).pdf:92:Changes to sediment quality could occur when sediment is released into the water column by dredging,

IBPB8270R001F01_EIA REPORT(2).pdf:92:The dispersion and deposition of sediment caused by the capital dredging is described in Section 6.3. Two

IBPB8270R001F01_EIA REPORT(2).pdf:92:types of dredger were considered in the plume dispersion studies, namely a CSD dredging mudstone (which

IBPB8270R001F01_EIA REPORT(2).pdf:93:would generate fine material when dredged) in the channel in the vicinity of the reclamation, and a TSHD

IBPB8270R001F01_EIA REPORT(2).pdf:93:dredging sand in the lower channel and in the Seaton Channel turning circle area. For the TSHD simulation

IBPB8270R001F01_EIA REPORT(2).pdf:93:the runoff from the dredger pumping ashore at the reclamation site was also included in the simulations.

IBPB8270R001F01_EIA REPORT(2).pdf:93:The plume dispersion studies predict that, during the dredging of sand in the lower channel using a TSHD,

IBPB8270R001F01_EIA REPORT(2).pdf:93:some deposition is predicted at Seal Sands, in the immediate vicinity of the dredger and elsewhere in the

IBPB8270R001F01_EIA REPORT(2).pdf:93:(up to 0.05mm for three tides) with total deposition of approximately 1mm for the duration of dredging in the

IBPB8270R001F01_EIA REPORT(2).pdf:93:lower channel. Fine material would only reach Seal Sands when dredging on spring tides.

IBPB8270R001F01_EIA REPORT(2).pdf:93:Dredging using a CSD further upstream (e.g. in the vicinity of the reclamation) would not result in the

IBPB8270R001F01_EIA REPORT(2).pdf:93:the immediate vicinity of the dredger, with deposition of less than 5mm elsewhere in the subtidal area.

IBPB8270R001F01_EIA REPORT(2).pdf:93:The deposition that is predicted in the immediate vicinity of the dredger is not considered to represent a

IBPB8270R001F01_EIA REPORT(2).pdf:93:significant effect since these locations form part of the capital dredging area (and would, therefore, already

IBPB8270R001F01_EIA REPORT(2).pdf:93:be significantly disturbed) and depositing sediment would be re-dredged.

IBPB8270R001F01_EIA REPORT(2).pdf:93:For the intertidal areas, the magnitude of sediment deposition over the course of the dredging operations is

IBPB8270R001F01_EIA REPORT(2).pdf:93:Notwithstanding the above, the capital dredging is likely to result in an overall slight increase in the

IBPB8270R001F01_EIA REPORT(2).pdf:93:tendency of the substratum to become finer. The net effect of the dredging, however, is not to introduce an

IBPB8270R001F01_EIA REPORT(2).pdf:93:Given the above, the physical impact of sediment deposited as a result of capital dredging on receptor areas

IBPB8270R001F01_EIA REPORT(2).pdf:93:There are a number of controls that would be implemented to ensure that TSS is minimised during dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:93:The main mitigation measure to limit sediment plume is selection of the dredging method. As noted above,

IBPB8270R001F01_EIA REPORT(2).pdf:93:dredging is proposed to be undertaken using a combination of a TSHD and CSD. Controls which would be

IBPB8270R001F01_EIA REPORT(2).pdf:94:and 4) for TSHD dredging sand in Tees approach channel, spring tide, low flow conditions

IBPB8270R001F01_EIA REPORT(2).pdf:95: contaminated sediment during capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:95:resulting from the dredging is likely to be significantly diluted before it reaches the designated monitoring

IBPB8270R001F01_EIA REPORT(2).pdf:95:The resuspension of sediment as a consequence of the proposed capital dredging could potentially affect

IBPB8270R001F01_EIA REPORT(2).pdf:95:predict the consequences of dredging on dissolved oxygen concentrations. In summary, under a variety of

IBPB8270R001F01_EIA REPORT(2).pdf:95:modelled conditions in the Tyne, such as dredging times, seasonal fluctuations and river flows, the modelling

IBPB8270R001F01_EIA REPORT(2).pdf:95:predicted only small differences between background and dredging impacted dissolved oxygen

IBPB8270R001F01_EIA REPORT(2).pdf:95:the dredging on the Tyne is considered to represent a more conservative scenario, as dredging in the Tees

IBPB8270R001F01_EIA REPORT(2).pdf:96:7.6.2 Potential impacts on water quality due to maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:96:During the operational phase, maintenance dredging within the berth pocket and approach channel would

IBPB8270R001F01_EIA REPORT(2).pdf:96:be required to maintain the dredged depth. Such maintenance dredging would likely lead to an increase in

IBPB8270R001F01_EIA REPORT(2).pdf:96:At present, there is an existing requirement for maintenance dredging of the approach channel and various

IBPB8270R001F01_EIA REPORT(2).pdf:96:berth pockets within the Tees estuary. The existing maintenance dredging regime is implemented and

IBPB8270R001F01_EIA REPORT(2).pdf:96:managed by PDT and the locations, volumes and frequency of dredging are well recorded.

IBPB8270R001F01_EIA REPORT(2).pdf:96:channel would be incorporated into the existing maintenance dredging strategy. The material from the

IBPB8270R001F01_EIA REPORT(2).pdf:96:maintenance dredging would be disposed of at the existing disposal sites in Tees Bay (as currently occurs).

IBPB8270R001F01_EIA REPORT(2).pdf:96:The implications of the proposed scheme on the maintenance dredging strategy have been established

IBPB8270R001F01_EIA REPORT(2).pdf:96:current maintenance dredging strategy during the operation of the proposed scheme. As such, it is

IBPB8270R001F01_EIA REPORT(2).pdf:96:volume of material requiring dredging would not be significantly increased, its composition will be very similar

IBPB8270R001F01_EIA REPORT(2).pdf:96:to that dredged at present and no increase in the frequency of dredging will be required.

IBPB8270R001F01_EIA REPORT(2).pdf:96: maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:96:As noted above, the implications of the proposed scheme on the maintenance dredging strategy have been

IBPB8270R001F01_EIA REPORT(2).pdf:96:the maintenance dredging will be insignificant, with no requirement to change the current strategy.

IBPB8270R001F01_EIA REPORT(2).pdf:97:maintenance dredging that is required due to the proposed scheme, given that the overall volume of material

IBPB8270R001F01_EIA REPORT(2).pdf:97:requiring dredging would not be significantly increased, its composition will be very similar to that dredged

IBPB8270R001F01_EIA REPORT(2).pdf:97:at present and no increase in the frequency of dredging will be required.

IBPB8270R001F01_EIA REPORT(2).pdf:97:given that the effect of the proposed dredging on swell waves from offshore is a reduction in significant wave

IBPB8270R001F01_EIA REPORT(2).pdf:104: • Removal of habitat due to quay construction and capital dredging (and proposed offsetting

IBPB8270R001F01_EIA REPORT(2).pdf:104: • Impacts on marine ecology from increases suspended sediment during capital dredging and

IBPB8270R001F01_EIA REPORT(2).pdf:104: smothering following dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:104: • Impacts on marine communities due to changes in the maintenance dredge regime.

IBPB8270R001F01_EIA REPORT(2).pdf:106: dredged material has been considered

IBPB8270R001F01_EIA REPORT(2).pdf:107:proposed disposal of dredged material to Tees Bay C are considered in Section 26.

IBPB8270R001F01_EIA REPORT(2).pdf:107: • 44 subtidal 0.1m 2 Day grab samples recovered within and adjacent to the proposed capital dredge

IBPB8270R001F01_EIA REPORT(2).pdf:107: capital dredging).

IBPB8270R001F01_EIA REPORT(2).pdf:107: • Deployment of 16 scientific benthic trawls within the proposed dredge footprint using a 20mm mesh

IBPB8270R001F01_EIA REPORT(2).pdf:107: with a 5mm cod end, with the trawls evenly distributed across the dredge area. Fish, shrimp and

IBPB8270R001F01_EIA REPORT(2).pdf:108: TG12 Proposed dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:110:The marine elements of the proposed scheme (i.e. the proposed dredge and construction of the quay) are

IBPB8270R001F01_EIA REPORT(2).pdf:110:anticipated to be present in the downstream part of the proposed dredge footprint only; no information is

IBPB8270R001F01_EIA REPORT(2).pdf:110:available for the footprint of the proposed terminal or the upstream part of the proposed dredge footprint.

IBPB8270R001F01_EIA REPORT(2).pdf:110:The mapping illustrates that the downstream part of the proposed dredge footprint is occupied by high

IBPB8270R001F01_EIA REPORT(2).pdf:111: Proposed dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:113: Proposed dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:124:continue to undertake maintenance dredging of the river and berths to maintain the advertised dredge

IBPB8270R001F01_EIA REPORT(2).pdf:124:9.5.1 Direct removal of habitat due to quay construction and capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:124:Dredging

IBPB8270R001F01_EIA REPORT(2).pdf:124:The dredging that would be required to deepen the approach channel and the berth pocket would result in

IBPB8270R001F01_EIA REPORT(2).pdf:124:the removal of subtidal benthic community within the footprint of the dredge (an area approximately 120ha

IBPB8270R001F01_EIA REPORT(2).pdf:124:the existing navigation channel and is therefore, already dredged. The area of seabed that will be dredged

IBPB8270R001F01_EIA REPORT(2).pdf:124:that is currently outside of the existing channel comprises 3.5ha. The capital dredging, which involves

IBPB8270R001F01_EIA REPORT(2).pdf:124:dredging adjacent to the Vopak foreshore opposite the proposed reclamation area (to locally realign the

IBPB8270R001F01_EIA REPORT(2).pdf:124:would arise as a result of the capital dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:125:The impact on the subtidal due to the proposed dredge does not constitute a long-term habitat loss (as

IBPB8270R001F01_EIA REPORT(2).pdf:125:subtidal habitat would still be present below the dredged footprint), but, in the short-term, the benthic

IBPB8270R001F01_EIA REPORT(2).pdf:125:community would be removed from within the capital dredged areas.

IBPB8270R001F01_EIA REPORT(2).pdf:125:Available geotechnical information which was used to inform the scheme design and the anticipated dredge

IBPB8270R001F01_EIA REPORT(2).pdf:125:within the proposed dredge footprint would not materially change following completion of the dredge.

IBPB8270R001F01_EIA REPORT(2).pdf:125:species identified from the March 2019 survey to changes in habitat as a result of dredging activity. As

IBPB8270R001F01_EIA REPORT(2).pdf:125:rapidly following dredging, recruiting from surrounding population within the year (Diaz-Castaneda et al.,

IBPB8270R001F01_EIA REPORT(2).pdf:125:dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:125:found both within and outside of the existing maintenance dredge footprint, indicating a relatively widespread

IBPB8270R001F01_EIA REPORT(2).pdf:125:daily maintenance dredging, as well as the presence of this species in low abundance, it is highly unlikely

IBPB8270R001F01_EIA REPORT(2).pdf:125:disturbance from dredging. The magnitude of the impact is considered to be low given the very small

IBPB8270R001F01_EIA REPORT(2).pdf:125:from capital dredging on A. islandica and S. spinulosa is predicted to be minor adverse.

IBPB8270R001F01_EIA REPORT(2).pdf:126:proposed dredge (Source: MarLIN website)

IBPB8270R001F01_EIA REPORT(2).pdf:127:the size of the proposed dredge, the magnitude of the effect is predicted to be medium, however the

IBPB8270R001F01_EIA REPORT(2).pdf:127:proposed dredge would not present an irreversible loss of habitat. The benthic community would be

IBPB8270R001F01_EIA REPORT(2).pdf:127:expected to recover to one that is similar to that present throughout the existing dredged approach channel

IBPB8270R001F01_EIA REPORT(2).pdf:127:across the majority of the proposed dredge footprint. Taking the above into account, as well as the low

IBPB8270R001F01_EIA REPORT(2).pdf:127:sensitivity of the key species present in the dredge footprint (apart from the species of conservation interest

IBPB8270R001F01_EIA REPORT(2).pdf:127:discussed above), it is concluded that the potential impact on subtidal habitat as a result of the dredge would

IBPB8270R001F01_EIA REPORT(2).pdf:127:maintenance dredged silt, thereby enhancing the ecological value of the intertidal area from its current

IBPB8270R001F01_EIA REPORT(2).pdf:127:It is recognised that the port terminal and capital dredging would have an impact on biodiversity that is

IBPB8270R001F01_EIA REPORT(2).pdf:127:above). To this end, the footprint of the proposed capital dredging and quay construction has been

IBPB8270R001F01_EIA REPORT(2).pdf:128: sediment during dredging

IBPB8270R001F01_EIA REPORT(2).pdf:128:During capital dredging, a proportion of the material that is dredged would be disturbed and re-suspended

IBPB8270R001F01_EIA REPORT(2).pdf:128:In general, sediment plumes induced by dredging are considered to pose only a limited risk to water quality

IBPB8270R001F01_EIA REPORT(2).pdf:128:accommodate an increased oxygen demand, particularly where dredging takes place in open sea or

IBPB8270R001F01_EIA REPORT(2).pdf:128:dredging periods.

IBPB8270R001F01_EIA REPORT(2).pdf:128:For both types of dredger (CSD and TSHD), peak suspended solids concentrations (i.e. up to 500mg/l above

IBPB8270R001F01_EIA REPORT(2).pdf:128:background) are predicted in the immediate vicinity of the dredger. Sediment plume modelling predicts that

IBPB8270R001F01_EIA REPORT(2).pdf:128:side of the dredger when it is located in the vicinity of the proposed reclamation.

IBPB8270R001F01_EIA REPORT(2).pdf:129:Based on the above, this characteristic species within the footprint of the proposed dredge is considered to

IBPB8270R001F01_EIA REPORT(2).pdf:129:The dominant sediment biotope present within the dredge footprint is EUNIS biotope A5.323, Nephtys

IBPB8270R001F01_EIA REPORT(2).pdf:129:9.5.3 Potential impacts to marine ecology from smothering following dredging

IBPB8270R001F01_EIA REPORT(2).pdf:129:Smothering caused by sedimentation of material resuspended by capital dredging within intertidal

IBPB8270R001F01_EIA REPORT(2).pdf:129:During the capital dredging a proportion of the material that is dredged would be disturbed and re-suspended

IBPB8270R001F01_EIA REPORT(2).pdf:129:material during dredging is described in Sections 6 and 7.

IBPB8270R001F01_EIA REPORT(2).pdf:129:generated by capital dredging of sand in the lower Tees estuary). The dredging is not predicted to result in

IBPB8270R001F01_EIA REPORT(2).pdf:129:It is predicted that peak deposition during the capital dredging would be up to 0.05mm per tide and is likely

IBPB8270R001F01_EIA REPORT(2).pdf:129:dredging sand will be up to 1mm. As described in Section 6, this sediment will be subject to a number of

IBPB8270R001F01_EIA REPORT(2).pdf:129:proportion of the dredged material would be reworked into the substratum. As a worse-case scenario, it is

IBPB8270R001F01_EIA REPORT(2).pdf:129:predicted that the net effect of the dredging and dispersive processes acting on the sediment following

IBPB8270R001F01_EIA REPORT(2).pdf:129:proposed dredging would not give rise to the loss of a component of the benthic community.

IBPB8270R001F01_EIA REPORT(2).pdf:130:Smothering caused by sedimentation of material resuspended by capital dredging within subtidal

IBPB8270R001F01_EIA REPORT(2).pdf:130:Capital dredging is predicted to result in the deposition of fine sediment within the subtidal zone. Much of

IBPB8270R001F01_EIA REPORT(2).pdf:130:the area affected by this deposition is within the footprint of the dredging and, therefore, this area will be

IBPB8270R001F01_EIA REPORT(2).pdf:130:directly impacted by the dredging activity itself. The deposition of fine material within this area is therefore

IBPB8270R001F01_EIA REPORT(2).pdf:130:Elsewhere in the subtidal area (i.e. outside of the footprint of the capital dredging) peak deposition of up to

IBPB8270R001F01_EIA REPORT(2).pdf:130:dispersed as tidal current increase. It is expected, however, that the dredging would result in a layer of fluid

IBPB8270R001F01_EIA REPORT(2).pdf:131: worst-case scenario (this form of dredging is proposed for a proportion of the NGCT dredge). The

IBPB8270R001F01_EIA REPORT(2).pdf:131: reported in Section 3, Phase 2 of the dredging involves the removal of mudstone using a CSD

IBPB8270R001F01_EIA REPORT(2).pdf:131: small, confined areas of dredging, for example, alongside the existing quay wall, to dredge berth

IBPB8270R001F01_EIA REPORT(2).pdf:131:In order to assess the environmental effects that impact piling and dredging could have on marine mammals,

IBPB8270R001F01_EIA REPORT(2).pdf:131:Modelling of underwater noise from the proposed dredging operations shows that noise levels are not

IBPB8270R001F01_EIA REPORT(2).pdf:132:dBht (species) sound propagation for backhoe and suction dredging is not predicted to reach the level at

IBPB8270R001F01_EIA REPORT(2).pdf:132:bankside from the noise source). The 90 and 75 dBht impact ranges for backhoe and suction dredging are

IBPB8270R001F01_EIA REPORT(2).pdf:132:dredging would be removed in full following completion of these activities. The modelling results predicted

IBPB8270R001F01_EIA REPORT(2).pdf:134:for the terminal (as well as shipping movements required during construction to undertake the dredge and

IBPB8270R001F01_EIA REPORT(2).pdf:135:Changes to the cross-sectional area of an estuary due to capital dredging and reclamation can influence

IBPB8270R001F01_EIA REPORT(2).pdf:136:effects on the existing maintenance dredging strategy, and no changes to the present-day maintenance

IBPB8270R001F01_EIA REPORT(2).pdf:136:dredging strategy are necessary. As such, there would be no impact on marine communities as a result of

IBPB8270R001F01_EIA REPORT(2).pdf:136:the maintenance dredging requirement arising from the proposed scheme.

IBPB8270R001F01_EIA REPORT(2).pdf:137: dredging

IBPB8270R001F01_EIA REPORT(2).pdf:137:The impact of capital dredging on the existing marine communities is described in Section 9.5. Following

IBPB8270R001F01_EIA REPORT(2).pdf:137:the completion of the dredging, the marine community within the dredge footprint would be expected to

IBPB8270R001F01_EIA REPORT(2).pdf:137:Given that the navigation channel is dredged to geological material, the proposed capital dredging would be

IBPB8270R001F01_EIA REPORT(2).pdf:137:over time the marine communities that colonise within the proposed dredge area would be expected to be

IBPB8270R001F01_EIA REPORT(2).pdf:137:capital dredging would be beneficial compared with the immediate post-dredge situation but maintenance

IBPB8270R001F01_EIA REPORT(2).pdf:137:dredging would restrict continuous recovery.

IBPB8270R001F01_EIA REPORT(2).pdf:137:community following completion of the capital dredge.

IBPB8270R001F01_EIA REPORT(2).pdf:137:construction along its shores. The Tees estuary is also subject to existing maintenance dredging on an

IBPB8270R001F01_EIA REPORT(2).pdf:140: • Effects of sediment deposition on intertidal food resources due to capital dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:140: • Potential effect of maintenance dredging on food resources.

IBPB8270R001F01_EIA REPORT(2).pdf:143: Proposed dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:145:dredge footprint overlaps with Bran Sands North sector (52428), North Gare Sands sectors (52413) and the

IBPB8270R001F01_EIA REPORT(2).pdf:145:pSPA and Ramsar site using data from 2013/14 to 2017/18. Given that the proposed dredge extends only

IBPB8270R001F01_EIA REPORT(2).pdf:152:(which contains the proposed container terminal footprint). The dredge footprint overlaps with other WeBS

IBPB8270R001F01_EIA REPORT(2).pdf:154: Proposed dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:156:As discussed in Section 6, the proposed capital dredge and reclamation process would cause suspension

IBPB8270R001F01_EIA REPORT(2).pdf:156:Sediment quality data from within the footprint of the proposed dredge has confirmed that there are no

IBPB8270R001F01_EIA REPORT(2).pdf:156:Level 1 only. The predicted increase in SSC resulting from dredging activity is described and assessed in

IBPB8270R001F01_EIA REPORT(2).pdf:156:reductions in water quality due to the proposed capital dredging and reclamation activities only.

IBPB8270R001F01_EIA REPORT(2).pdf:156:The potential effect of dredging using a CSD and TSHD on SSC in the water column is likely to result in a

IBPB8270R001F01_EIA REPORT(2).pdf:156:estuary. The modelled sediment dispersion plume from the proposed NGCT dredge does not interact with

IBPB8270R001F01_EIA REPORT(2).pdf:157: Proposed dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:158:important for foraging and therefore terns may be sensitive to the turbidity caused by dredging operations

IBPB8270R001F01_EIA REPORT(2).pdf:158:on (MMO, 2018). However, the occurrence of frequent maintenance dredging activity within and adjacent

IBPB8270R001F01_EIA REPORT(2).pdf:158:As reported in Section 6, for all dredger simulations, the largest rise in peak SSC is predicted in the

IBPB8270R001F01_EIA REPORT(2).pdf:158:immediate vicinity of the dredger, centred either at the location of the barge loading pontoon or along the

IBPB8270R001F01_EIA REPORT(2).pdf:158:line of the trailing suction dredger track. The hydrodynamic and sedimentary modelling results illustrate that

IBPB8270R001F01_EIA REPORT(2).pdf:158:For spring tide conditions with low freshwater flow, the effect of dredging sandy material with a TSHD in the

IBPB8270R001F01_EIA REPORT(2).pdf:158:and 1000mg/l along the dredger track and in the vicinity of the run-off from the reclamation. The extent of

IBPB8270R001F01_EIA REPORT(2).pdf:158:the predicted increase in SSC associated with both dredging techniques assessed (at the simulated dredge

IBPB8270R001F01_EIA REPORT(2).pdf:158:As shown in Figures 6.2 to 6.4, the capital dredging is predicted to result in an increase in SSC, which has

IBPB8270R001F01_EIA REPORT(2).pdf:158:immediate vicinity of the dredger). Therefore, it is predicated that the impacts beyond the immediate vicinity

IBPB8270R001F01_EIA REPORT(2).pdf:158:of the dredger would be negligible in terms of reductions in foraging ability, as the predicted increases in

IBPB8270R001F01_EIA REPORT(2).pdf:158:returning to background levels relatively quickly following completion of the dredge. Terns are considered

IBPB8270R001F01_EIA REPORT(2).pdf:158:Given the approximate duration of the proposed dredge (predicted at between four and 11 weeks for

IBPB8270R001F01_EIA REPORT(2).pdf:159:the axis of the estuary, rather than dredging across the width of the river. This will reduce both the extent

IBPB8270R001F01_EIA REPORT(2).pdf:159:and impact of the dredged plume, as any plume generated by operations has been predicted (by HR

IBPB8270R001F01_EIA REPORT(2).pdf:159:Wallingford) to remain on the same side of the river as the dredging operation.

IBPB8270R001F01_EIA REPORT(2).pdf:159:This methodology will ensure that a completed strip of the river is clear before the dredger is deployed to

IBPB8270R001F01_EIA REPORT(2).pdf:159:dredging be undertaken during the months when migratory fish are present in the river, one side of the river

IBPB8270R001F01_EIA REPORT(2).pdf:159:move past the dredging activity (and therefore provide an area within which birds can continue to feed within

IBPB8270R001F01_EIA REPORT(2).pdf:159:Mitigation of the plume effects by reducing the size of the dredger, and thus reducing the rate of overflow,

IBPB8270R001F01_EIA REPORT(2).pdf:159:is not viable since the size of dredger has to be sufficient to carry a large enough drag head and to have

IBPB8270R001F01_EIA REPORT(2).pdf:159:sufficient propulsion power to undertake the required dredging operation.

IBPB8270R001F01_EIA REPORT(2).pdf:159:by reducing the size of the dredger, and thus reducing the rate of overflow, will not be possible as a smaller

IBPB8270R001F01_EIA REPORT(2).pdf:159:dredger would have insufficient power to be able to cut though the stronger materials and, hence, the smaller

IBPB8270R001F01_EIA REPORT(2).pdf:159:11.5.3 Direct loss of intertidal due to reclamation and capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:159:Changes to the cross-sectional area of the Tees estuary as a consequence of capital dredging and

IBPB8270R001F01_EIA REPORT(2).pdf:160: dredging

IBPB8270R001F01_EIA REPORT(2).pdf:160:The deposition of fine sediment within intertidal areas due to capital dredging has the potential to affect

IBPB8270R001F01_EIA REPORT(2).pdf:160:areas affected by the dredging, is presented in Sections 6 and 7. The implications of this for benthic

IBPB8270R001F01_EIA REPORT(2).pdf:160:benthic communities of intertidal areas would not be affected by deposition associated with capital dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:160:of the effects of capital dredging and no impact is predicted.

IBPB8270R001F01_EIA REPORT(2).pdf:160:will, therefore, be preferentially placed on this side of the estuary for the duration of the capital dredging to

IBPB8270R001F01_EIA REPORT(2).pdf:163:the overriding consequence of the generation of noise during piling (as well as the dredging and construction

IBPB8270R001F01_EIA REPORT(2).pdf:165:eastern side of the estuary for the duration of the capital dredge, to reduce the potential for sediment

IBPB8270R001F01_EIA REPORT(2).pdf:165:transport to Seal Sands during the capital dredge. This would reduce the potential for any construction

IBPB8270R001F01_EIA REPORT(2).pdf:166:11.6.4 Potential effect of maintenance dredging on food resources

IBPB8270R001F01_EIA REPORT(2).pdf:166:dredging requirement during the operational phase but this would not warrant an increased frequency of

IBPB8270R001F01_EIA REPORT(2).pdf:166:dredging above that which already occurs (however the campaigns are likely to be longer duration). As the

IBPB8270R001F01_EIA REPORT(2).pdf:166:proposed scheme footprint is already subject to maintenance dredging and no increase in maintenance

IBPB8270R001F01_EIA REPORT(2).pdf:166:dredge frequency is predicted, an impact of negligible significance is predicted to the feeding resource of

IBPB8270R001F01_EIA REPORT(2).pdf:166:Maintenance dredging of the approach channel (and the associated regular disturbance to the benthic

IBPB8270R001F01_EIA REPORT(2).pdf:166:During the operational phase, there would be no change to the maintenance dredging method or frequency

IBPB8270R001F01_EIA REPORT(2).pdf:166:and, therefore, there would be no significant underwater noise effect associated with maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:167:The capital dredging, which involves dredging adjacent to the Vopak foreshore opposite the proposed

IBPB8270R001F01_EIA REPORT(2).pdf:167:area would arise as a result of the capital dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:167:due to the direct effects of reclamation works or capital dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:168: • Direct uptake and disturbance of fish during capital dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:168: • Impacts caused by increased suspended sediment during capital dredging and dewatering during

IBPB8270R001F01_EIA REPORT(2).pdf:169:implications and are not considered to be appropriate given the daily maintenance dredging which is

IBPB8270R001F01_EIA REPORT(2).pdf:169:occur (e.g. sediment plumes generated during capital dredging and effects on tidal currents during

IBPB8270R001F01_EIA REPORT(2).pdf:169:dredge footprint undertaken during March 2019 by Ocean Ecology Ltd (Figure 9.1). The trawls were evenly

IBPB8270R001F01_EIA REPORT(2).pdf:169:distributed across the proposed dredge footprint and tows were undertaken for between seven and nine

IBPB8270R001F01_EIA REPORT(2).pdf:169:(2011) and further detailed in the Recommended Operating Guidelines (ROG) for MESH trawls and dredges

IBPB8270R001F01_EIA REPORT(2).pdf:169:and further detailed in the ROG for MESH trawls and dredges (Curtis & Coggan 2007). A labelled sample

IBPB8270R001F01_EIA REPORT(2).pdf:172:and adjacent to the proposed dredge footprint. It is recognised that the benthic trawl data provides only a

IBPB8270R001F01_EIA REPORT(2).pdf:172:snapshot of the fisheries use of the proposed dredge footprint and does not effectively survey / sample

IBPB8270R001F01_EIA REPORT(2).pdf:186:12.5.1 Direct uptake and disturbance of fish during capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:186:During the capital dredging there is the potential for fish eggs, fish, shellfish and the food resources on which

IBPB8270R001F01_EIA REPORT(2).pdf:186:they rely to be taken up directly by the dredger. Potential effects are injury, mortality and displacement.

IBPB8270R001F01_EIA REPORT(2).pdf:186:the area, the 16 trawls undertaken within the proposed dredge footprint during March 2019 confirmed the

IBPB8270R001F01_EIA REPORT(2).pdf:186:maintenance dredging operations) is likely to result in an avoidance reaction, with the presence of the

IBPB8270R001F01_EIA REPORT(2).pdf:186:dredge head likely resulting in fish temporarily moving away from the area, thereby avoiding direct uptake.

IBPB8270R001F01_EIA REPORT(2).pdf:186:2019 benthic survey, the extensive maintenance dredging undertaken by PDT within the proposed dredge

IBPB8270R001F01_EIA REPORT(2).pdf:186:As assessed in Section 9.5, the effect of the dredging does not represent an irreversible loss of habitat; the

IBPB8270R001F01_EIA REPORT(2).pdf:186:dredged approach channel.

IBPB8270R001F01_EIA REPORT(2).pdf:186:is already subject to regular maintenance dredging. It is recognised that there is a risk of demersal fish

IBPB8270R001F01_EIA REPORT(2).pdf:186:species being present within the proposed dredge footprint which could be subject to uptake, however, it is

IBPB8270R001F01_EIA REPORT(2).pdf:186:uptake of fish during dredging and any effect would be localised. The impact is therefore predicted to be of

IBPB8270R001F01_EIA REPORT(2).pdf:187: sediment concentrations due to dredging and dewatering of the

IBPB8270R001F01_EIA REPORT(2).pdf:187:The construction phase will result in increased SSC in the water column during capital dredging and during

IBPB8270R001F01_EIA REPORT(2).pdf:187:fish physiology. The capital dredging and terminal construction could coincide with the timing of salmon

IBPB8270R001F01_EIA REPORT(2).pdf:187:It is predicted that the increase in SSC arising during capital dredging would be outside the range of natural

IBPB8270R001F01_EIA REPORT(2).pdf:187:variation, in the immediate vicinity of the dredger (see Section 6). Sediment plume modelling has however

IBPB8270R001F01_EIA REPORT(2).pdf:187:predicted that peak SSC’s in the main channel are significantly affected by the location of the dredger. When

IBPB8270R001F01_EIA REPORT(2).pdf:187:solids are predicted to decrease significantly outside of the immediate vicinity of the dredger (see Section

IBPB8270R001F01_EIA REPORT(2).pdf:187:in suspended solids also occurs when the dredger is located in the main channel adjacent to North Gare

IBPB8270R001F01_EIA REPORT(2).pdf:187:The cross section of the estuary affected by the plume arising from the proposed dredging is particularly

IBPB8270R001F01_EIA REPORT(2).pdf:187:proposed dredging, significant elevations in SSC are predicted to occur in the immediate vicinity of the

IBPB8270R001F01_EIA REPORT(2).pdf:187:dredger and along the streamline; however, the relatively narrow nature of the Tees means that there is the

IBPB8270R001F01_EIA REPORT(2).pdf:187:the course of the capital dredging. It is concluded, therefore, that there could be temporary impacts on

IBPB8270R001F01_EIA REPORT(2).pdf:188: undertaken in long strips along the axis of the estuary rather than dredging across the width of the

IBPB8270R001F01_EIA REPORT(2).pdf:188: river. This is to reduce both the extent and impact of the dredged plume, as any plume generated

IBPB8270R001F01_EIA REPORT(2).pdf:188: by operations has been predicted to remain on the same side of the river as the dredging operation.

IBPB8270R001F01_EIA REPORT(2).pdf:188:of the river at a time and, should dredging be undertaken during the months when migratory fish are present

IBPB8270R001F01_EIA REPORT(2).pdf:188:which migratory fish will be able to move past the dredging activity (and for resident species to relocate to

IBPB8270R001F01_EIA REPORT(2).pdf:188:not viable since the size of dredger has to be sufficient to carry a large enough drag head and to have

IBPB8270R001F01_EIA REPORT(2).pdf:188:sufficient propulsion power to undertake the required dredging operation.

IBPB8270R001F01_EIA REPORT(2).pdf:188:As discussed in Section 6, a proportion of the material that would be disturbed during dredging would be re-

IBPB8270R001F01_EIA REPORT(2).pdf:188:dredge envelope has confirmed that there are no exceedances of Action Level 2, and therefore the

IBPB8270R001F01_EIA REPORT(2).pdf:189:The re-suspension of sediment as a consequence of the proposed dredging could also potentially affect

IBPB8270R001F01_EIA REPORT(2).pdf:189:In general, sediment plumes induced by dredging are considered to pose only a limited risk to water quality

IBPB8270R001F01_EIA REPORT(2).pdf:189:increased oxygen demand, particularly where dredging takes place in open sea or estuaries (CIRIA, 2000).

IBPB8270R001F01_EIA REPORT(2).pdf:189:It has also been reported that dredging activities often generate no more increased suspended sediments

IBPB8270R001F01_EIA REPORT(2).pdf:189:dredging operations (Environment Canada, 1994, cited within the UK Marine SACs Project, 2001). It is

IBPB8270R001F01_EIA REPORT(2).pdf:189:therefore often very difficult to distinguish the environmental effects of dredging from those resulting from

IBPB8270R001F01_EIA REPORT(2).pdf:189:It is predicted that the increase in TSS during capital dredging would be outside the range of natural

IBPB8270R001F01_EIA REPORT(2).pdf:189:variation, particularly in the immediate vicinity of the dredger (peaking at up to 500mg/l above background

IBPB8270R001F01_EIA REPORT(2).pdf:189:in the immediate vicinity of the dredger) (see Section 6). It is therefore concluded that avoidance reactions

IBPB8270R001F01_EIA REPORT(2).pdf:189:location of the dredger. When located in the Tees Dock turning circle or in the area of the proposed quay

IBPB8270R001F01_EIA REPORT(2).pdf:189:dredger (see Section 6). This occurs both laterally and within the streamlining of the vessel. This significant

IBPB8270R001F01_EIA REPORT(2).pdf:189:decrease in suspended solids also occurs when the dredger is located in the main channel adjacent to North

IBPB8270R001F01_EIA REPORT(2).pdf:189:The cross section of the estuary affected by the plume arising from the proposed dredging is particularly

IBPB8270R001F01_EIA REPORT(2).pdf:189:proposed dredging, significant elevations in SSC are predicted to occur in the immediate vicinity of the

IBPB8270R001F01_EIA REPORT(2).pdf:189:dredger and along the streamline; however, the relatively narrow nature of the Tees means that there is the

IBPB8270R001F01_EIA REPORT(2).pdf:189:the course of the capital dredging. It is concluded, therefore, that there could be temporary impacts on

IBPB8270R001F01_EIA REPORT(2).pdf:190:terms of peak TSS in the immediate vicinity of the dredger), the magnitude of the impact is considered to

IBPB8270R001F01_EIA REPORT(2).pdf:190:The controls outlined in Section 7 with regard to minimising suspended sediment load during dredging are

IBPB8270R001F01_EIA REPORT(2).pdf:191:The source levels from dredging operations are below the thresholds which would be anticipated to result

IBPB8270R001F01_EIA REPORT(2).pdf:192:as the dredging and construction activities) will be for fish to move away from the source. Therefore, in the

IBPB8270R001F01_EIA REPORT(2).pdf:193: maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:193:There would be a requirement for maintenance dredging of the newly deepened approach channel and

IBPB8270R001F01_EIA REPORT(2).pdf:193:berth pocket during the operational phase, to maintain the required operating depth. Maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:193:represents a repeated disturbance to the benthic community within the dredged area, and limits recovery of

IBPB8270R001F01_EIA REPORT(2).pdf:193:the benthic community following the impact that would occur as a result of capital dredging. Although there

IBPB8270R001F01_EIA REPORT(2).pdf:193:would be recovery following capital dredging, the community would be likely characterised by a community

IBPB8270R001F01_EIA REPORT(2).pdf:193:similar to that observed within the pre-capital dredge approach channel (given that the area is already

IBPB8270R001F01_EIA REPORT(2).pdf:193:subject to ongoing disturbance from maintenance dredging).

IBPB8270R001F01_EIA REPORT(2).pdf:193:maintenance dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:193:Maintenance dredging of the approach channel and berth pocket (and the associated regular disturbance

IBPB8270R001F01_EIA REPORT(2).pdf:197: Proposed dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:197: Advertised dredge depths

IBPB8270R001F01_EIA REPORT(2).pdf:197: Advertised dredge depths

IBPB8270R001F01_EIA REPORT(2).pdf:198:navigation within the Tees estuary. This potential arises due to the presence of the dredger within the

IBPB8270R001F01_EIA REPORT(2).pdf:198:navigation channel, the need for pipelines to pump dredged material ashore from the dredger and the

IBPB8270R001F01_EIA REPORT(2).pdf:198:focused on the area in the vicinity of the proposed terminal but the capital dredging will, at certain stages in

IBPB8270R001F01_EIA REPORT(2).pdf:198:PDT would manage any potential conflicts in the same way as routine dredging and other construction

IBPB8270R001F01_EIA REPORT(2).pdf:198:activities, through co-ordination via the Harbour Master. Management of dredging operations within a busy

IBPB8270R001F01_EIA REPORT(2).pdf:203: • Capital dredging of the approach channel and berth pocket (and maintenance dredging during

IBPB8270R001F01_EIA REPORT(2).pdf:203: • Disposal of dredged material.

IBPB8270R001F01_EIA REPORT(2).pdf:203:dredging could impact potential archaeology that may be present. This includes the disturbance of

IBPB8270R001F01_EIA REPORT(2).pdf:204:of the works remains, however, is considered to be low given that capital dredging required for the NGCT

IBPB8270R001F01_EIA REPORT(2).pdf:204:project will take place within an existing dredged channel.

IBPB8270R001F01_EIA REPORT(2).pdf:204:The construction of the deep-water berth and quay wall, and capital dredging, may impact as yet

IBPB8270R001F01_EIA REPORT(2).pdf:204:ground investigations or geophysical surveys are carried out in advance of capital dredging within the

IBPB8270R001F01_EIA REPORT(2).pdf:205: construction and capital dredging on the potential

IBPB8270R001F01_EIA REPORT(2).pdf:207:use of dredged material on land. The material to be re-used within the reclamation (if required) and land-

IBPB8270R001F01_EIA REPORT(2).pdf:207:generated if a significant volume of dredged material (containing high levels of organic matter) were to be

IBPB8270R001F01_EIA REPORT(2).pdf:207:stockpiled on site for a significant duration of time. In reality, however, the dredged material to be used

IBPB8270R001F01_EIA REPORT(2).pdf:207:8.7% within the proposed dredge footprint. The placement of sands and gravels with low percentages of

IBPB8270R001F01_EIA REPORT(2).pdf:209:particularly associated with the presence of the dredger in various parts of the channel throughout the course

IBPB8270R001F01_EIA REPORT(2).pdf:209:activity is during the dredging that will take place close to the mouth of the estuary where some sailing is

IBPB8270R001F01_EIA REPORT(2).pdf:210:undertaken. However, given the limited duration of dredging in this area and particularly the fact that the

IBPB8270R001F01_EIA REPORT(2).pdf:210:dredging would take place within an existing navigation channel that is heavily used by commercial shipping,

IBPB8270R001F01_EIA REPORT(2).pdf:210:based recreational as far as practicable. The movements of the dredger and other water-based aspects of

IBPB8270R001F01_EIA REPORT(2).pdf:210:Commercial vessels will be confined to navigating within the dredged channel (as at present) and

IBPB8270R001F01_EIA REPORT(2).pdf:215:The present dredged approach channel in the Tees estuary is at a depth of 10.4m below CD (-13.25mOD)

IBPB8270R001F01_EIA REPORT(2).pdf:221:of dredging the channel to the present declared depth account for approximately half of this impact.

IBPB8270R001F01_EIA REPORT(2).pdf:221:capital dredging represent a minor change. Overall, a potential impact of minor adverse significance is

IBPB8270R001F01_EIA REPORT(2).pdf:224: Proposed dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:225:pipeline and the GDF Suez pipelines are within the proposed dredge footprint, but outside of the construction

IBPB8270R001F01_EIA REPORT(2).pdf:225:footprint for the container terminal. Pipe Tunnel No.1 is located upstream of the proposed dredge footprint.

IBPB8270R001F01_EIA REPORT(2).pdf:225:The capital dredging, terminal construction and disposal of dredged material to land have the potential to

IBPB8270R001F01_EIA REPORT(2).pdf:225:With respect to the capital dredging, the potential direct effect is limited to impacts on pipelines and cables

IBPB8270R001F01_EIA REPORT(2).pdf:225:estuary. Pipe Tunnel No.1 is located outside of the footprint of the capital dredging (upstream), and

IBPB8270R001F01_EIA REPORT(2).pdf:226:The capital dredging for the berthing pocket and approach channel would, however, pass over Pipe Tunnel

IBPB8270R001F01_EIA REPORT(2).pdf:226:No.2. These pipelines are located at a minimum depth of 22.45m below CD; the maximum depth of dredging

IBPB8270R001F01_EIA REPORT(2).pdf:226:is 16m below CD for the berthing pocket, and therefore, the dredge would have no direct impact on Pipe

IBPB8270R001F01_EIA REPORT(2).pdf:226:the estuary and are, therefore, too deep to be affected by capital dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:226:a consequence of the terminal construction and capital dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:226:The proposed dredging, reclamation and piling activities have the potential to impact water quality by

IBPB8270R001F01_EIA REPORT(2).pdf:226:than 5mg/l in the vicinity of the power station intake. In addition, since the proposed dredging is to occur

IBPB8270R001F01_EIA REPORT(2).pdf:226:settled out of suspension in the immediate vicinity of the dredger (see Section 6 for further detail). No

IBPB8270R001F01_EIA REPORT(2).pdf:226:The controls outlined in Section 7 (with regard to minimising sediment plume dispersion during dredging)

IBPB8270R001F01_EIA REPORT(2).pdf:227:21.6.1 Potential impact on Infrastructure due to maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:227:maintenance dredging strategy and, therefore, no impact is predicted on Infrastructure as a result of the

IBPB8270R001F01_EIA REPORT(2).pdf:227:proposed maintenance dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:227:flow is the same following the proposed channel dredging as at present, the prediction of no change in the

IBPB8270R001F01_EIA REPORT(2).pdf:227:Since there is no requirement to change the existing maintenance dredging strategy following completion

IBPB8270R001F01_EIA REPORT(2).pdf:227:of the dredge, no impact relating to increases in gross solids or fines, is predicted to occur on these

IBPB8270R001F01_EIA REPORT(2).pdf:237:proposed dredge.

IBPB8270R001F01_EIA REPORT(2).pdf:237: • Scope 1 GHGs associated with the consumption of diesel fuel by construction plant and dredgers

IBPB8270R001F01_EIA REPORT(2).pdf:238:GHG emissions from construction plant and dredgers were estimated to be 7,335 tonnes of carbon dioxide

IBPB8270R001F01_EIA REPORT(2).pdf:242:focusses on waste minimisation and the beneficial use of the dredged material.

IBPB8270R001F01_EIA REPORT(2).pdf:242:24.2 Waste minimisation and beneficial use of dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:242:As noted in Section 3 of this report, the scheme will generate waste, primarily as a result of capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:242:therefore, is not possible to deliver for the scheme. Section 3 considers beneficial uses of the dredged

IBPB8270R001F01_EIA REPORT(2).pdf:242:volume of material to be dredged should be disposed offshore. A review of possible beneficial uses for the

IBPB8270R001F01_EIA REPORT(2).pdf:243:24.3 Beneficial use of dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:243:24.3.1 Summary of disposal options for dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:243:A number of options for the disposal of dredged material that will be generated as a result of the scheme

IBPB8270R001F01_EIA REPORT(2).pdf:243: • Disposal at the Former Leathers chemical works site at North Gare (i.e. using dredged material to

IBPB8270R001F01_EIA REPORT(2).pdf:243:islands) could be created using the dredged material from Hartlepool channel. In terms of Hartlepool

IBPB8270R001F01_EIA REPORT(2).pdf:243:suitable locations for the re-use of dredged sediment; three were located adjacent to the South Gare

IBPB8270R001F01_EIA REPORT(2).pdf:243:Hartlepool channel scheme by beneficially re-using dredged material would be welcomed.

IBPB8270R001F01_EIA REPORT(2).pdf:244:use of dredged sediment to create / enhance existing roost sites does represent a possible option. The

IBPB8270R001F01_EIA REPORT(2).pdf:244:offshore disposal of all dredged material to ensure that the proposed scheme can proceed should the

IBPB8270R001F01_EIA REPORT(2).pdf:244:development of bird islands not be possible at the point of undertaking the proposed dredge.

IBPB8270R001F01_EIA REPORT(2).pdf:244:PDT will continue to investigate the option of creating bird islands using dredged material (including that to

IBPB8270R001F01_EIA REPORT(2).pdf:244:Partnership. Such creation of bird islands at the mouth of the Tees (or any beneficial use of dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:244:in the marine environment) would require a separate marine licence application to deposit dredged material,

IBPB8270R001F01_EIA REPORT(2).pdf:244:Although there are no immediately identifiable schemes which could utilise the dredged sediment that would

IBPB8270R001F01_EIA REPORT(2).pdf:244:dredged material arising directly from the proposed NGCT, PDT is proposing to recharge the intertidal area

IBPB8270R001F01_EIA REPORT(2).pdf:244:downstream of Newport Bridge with maintenance dredged silt as part of habitat improvement measures

IBPB8270R001F01_EIA REPORT(2).pdf:244:Depending on the timescales, it may be possible to utilise some of the dredged material that will arise from

IBPB8270R001F01_EIA REPORT(2).pdf:244:the NGCT dredge within the habitat enhancement works that are required in Bran Sands lagoon for the York

IBPB8270R001F01_EIA REPORT(2).pdf:244:included within the scheme design (on the basis that there are no feasible beneficial uses of dredged

IBPB8270R001F01_EIA REPORT(2).pdf:246:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL

IBPB8270R001F01_EIA REPORT(2).pdf:246:The NGCT is predicted to generate up to 4.8 million m 3 of dredged material. Of this total, 970,000m3 is to

IBPB8270R001F01_EIA REPORT(2).pdf:246:2.3 million m3 of dredged material in Bran Sands lagoon (which would reduce the volume of material required

IBPB8270R001F01_EIA REPORT(2).pdf:246:for offshore disposal to 0.6 million m3). However, the disposal of dredged material in Bran Sands lagoon is

IBPB8270R001F01_EIA REPORT(2).pdf:246:on a worst-case basis whereby approximately 3,830,000m3 of dredged material would be disposed offshore.

IBPB8270R001F01_EIA REPORT(2).pdf:246:The majority of dredged material arising from the NGCT project will be disposed offshore at Tees Bay C

IBPB8270R001F01_EIA REPORT(2).pdf:246:A (TY160). Both sites have historically been used for the disposal of both capital and maintenance dredged

IBPB8270R001F01_EIA REPORT(2).pdf:246:material. In general, Tees Bay A is used for the disposal of maintenance dredged material, whilst Tees Bay

IBPB8270R001F01_EIA REPORT(2).pdf:246:C is used for capital dredge arisings.

IBPB8270R001F01_EIA REPORT(2).pdf:246:Bay C has been used for the disposal of both capital and maintenance dredged material. The disposal

IBPB8270R001F01_EIA REPORT(2).pdf:247:PDT currently holds a 10-year licence (L/2015/00427/4) for the disposal of maintenance dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:247:with the marine licence conditions, the volume of maintenance dredged material disposed is recorded and

IBPB8270R001F01_EIA REPORT(2).pdf:247:A zoned disposal plan has been operating since 2006 for the disposal of maintenance dredged material at

IBPB8270R001F01_EIA REPORT(2).pdf:247:The annual volume of maintenance dredged material deposited within the Tees Bay offshore disposal sites

IBPB8270R001F01_EIA REPORT(2).pdf:247:26.2.3 Modelling the dispersion of capital dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:247:capital dredged material arising from the NGCT project. Simulations have been undertaken for disposal

IBPB8270R001F01_EIA REPORT(2).pdf:250:The modelling exercise has concluded that, in the context of the existing disposal of maintenance dredged

IBPB8270R001F01_EIA REPORT(2).pdf:250:It is also concluded that the capital dredging will result in far lower rates of the introduction of fines into the

IBPB8270R001F01_EIA REPORT(2).pdf:250:system to that which occurs during maintenance dredging and disposal. Therefore, the physical effects of

IBPB8270R001F01_EIA REPORT(2).pdf:250:the material disposed at the site during the capital dredging for NGCT will be smaller. There will be some

IBPB8270R001F01_EIA REPORT(2).pdf:250:In 2010, CEFAS undertook the ‘SLAB5’ dredged material disposal site sampling survey at a number of

IBPB8270R001F01_EIA REPORT(2).pdf:253:The proposed disposal of dredged material within the Tees Bay C offshore disposal site has the potential to

IBPB8270R001F01_EIA REPORT(2).pdf:253:of the Tees Bay C site due to disposal of dredged material. It has been demonstrated that the rate of

IBPB8270R001F01_EIA REPORT(2).pdf:253:of maintenance dredged material and there will be a negligible effect on SSC outside of the boundary of the

IBPB8270R001F01_EIA REPORT(2).pdf:253:fisheries due to the proposed deposition of dredged material at Tees Bay C.

IBPB8270R001F01_EIA REPORT(2).pdf:256:The proposed disposal of dredged material at the Tees Bay C offshore disposal site would be significantly

IBPB8270R001F01_EIA REPORT(2).pdf:256:arise from offshore disposal of dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:256:disposal site (an area which is designated specifically for the disposal of dredged material), however the

IBPB8270R001F01_EIA REPORT(2).pdf:256:within the NGCT dredge footprint).

IBPB8270R001F01_EIA REPORT(2).pdf:256:are within the areas which are subject to regular maintenance dredging by PDT, however are located outside

IBPB8270R001F01_EIA REPORT(2).pdf:256:of the proposed dredge footprint for NGCT. The proposed dredging and offshore disposal required for the

IBPB8270R001F01_EIA REPORT(2).pdf:257:hyperborean, should it colonise substrate within the proposed dredge footprint prior to the dredge taking

IBPB8270R001F01_EIA REPORT(2).pdf:257:are not present at levels of concern within the Tees estuary. Maintenance dredged material from the Tees

IBPB8270R001F01_EIA REPORT(2).pdf:257:a number of years. As a result, the disposal of dredged material within Tees Bay C would not introduce a

IBPB8270R001F01_EIA REPORT(2).pdf:257:dredge disposal operations). Overall, the potential impact would be of negligible significance.

IBPB8270R001F01_EIA REPORT(2).pdf:257:To undertake the disposal operation, the TSHD or disposal barges would transport dredged material from

IBPB8270R001F01_EIA REPORT(2).pdf:257:the proposed dredge footprint to the Tees Bay C offshore disposal site. Consequently, there is potential for

IBPB8270R001F01_EIA REPORT(2).pdf:257:The disposal operations are linked to the dredging task and would require regular movements of dredging

IBPB8270R001F01_EIA REPORT(2).pdf:257:plant between the dredge site and the disposal site, via the navigation channel and the coastal waters of

IBPB8270R001F01_EIA REPORT(2).pdf:257:dredged material offshore would be low (i.e. a TSHD and/or a barge), and no impact is predicted.

IBPB8270R001F01_EIA REPORT(2).pdf:257:The proposed disposal of dredged material has the potential to result in shallowing of the water depth above

IBPB8270R001F01_EIA REPORT(2).pdf:257:dredged material into the Tees Bay C site would result in no impact on navigation as a result of potential

IBPB8270R001F01_EIA REPORT(2).pdf:257: and to what extent, dredged material accumulates at the disposal sites.

IBPB8270R001F01_EIA REPORT(2).pdf:257: • The first survey would be undertaken immediately prior to disposal of dredged material, with a

IBPB8270R001F01_EIA REPORT(2).pdf:260:Section 1 is 7th May 2028). As noted in Section 3, dredging the mudstone in the upper reach is predicted

IBPB8270R001F01_EIA REPORT(2).pdf:260:to take approximately 33 weeks, whilst dredging of the granular material and clay is predicted to take

IBPB8270R001F01_EIA REPORT(2).pdf:260:extent of the dredging and disposal plumes.

IBPB8270R001F01_EIA REPORT(2).pdf:261: • Ongoing maintenance dredging (consented and ongoing).

IBPB8270R001F01_EIA REPORT(2).pdf:261: • the disposal of dredged material.

IBPB8270R001F01_EIA REPORT(2).pdf:262: • dredging up to 750,000m3 of material from the approach

IBPB8270R001F01_EIA REPORT(2).pdf:262: • dredging up to 372,000m3 of material from the approach

IBPB8270R001F01_EIA REPORT(2).pdf:263: In addition to the proposed dredge (and associated disposal of at Hartlepool are not predicted to extend into the Tees

IBPB8270R001F01_EIA REPORT(2).pdf:263: dredged material), PDT is proposing to construct an underwater estuary), indicating no cumulative effect on hydrodynamics

IBPB8270R001F01_EIA REPORT(2).pdf:263: being undermined following the proposed dredge. consideration of the Hartlepool channel scheme is therefore

IBPB8270R001F01_EIA REPORT(2).pdf:263: time window, the existing channel will need to be dredged to -

IBPB8270R001F01_EIA REPORT(2).pdf:263: 12mCD and the berths will be dredged to depths of up to -15mCD. It Screened out of CIA.

IBPB8270R001F01_EIA REPORT(2).pdf:263: is estimated that the total capital dredge will be around 2Mm3.

IBPB8270R001F01_EIA REPORT(2).pdf:263: activity, maintenance dredging and disposal is represented

IBPB8270R001F01_EIA REPORT(2).pdf:263: maintenance dredge could be undertaken at the same time

IBPB8270R001F01_EIA REPORT(2).pdf:263: as the capital dredging activity required for NGCT (albeit

IBPB8270R001F01_EIA REPORT(2).pdf:263: dredging at Hartlepool This activity has been ongoing for many years. 0km granted for

IBPB8270R001F01_EIA REPORT(2).pdf:263: Screened into the CIA (excluding maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:263: 1 and Dolphin D, and a dredge of the river bed dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:263: (with associated disposal of dredged material) to extend the existing

IBPB8270R001F01_EIA REPORT(2).pdf:264: The Tees Channel Dredge project involves a proposed deepening of

IBPB8270R001F01_EIA REPORT(2).pdf:264: Given that the dredge footprint largely overlaps with that for

IBPB8270R001F01_EIA REPORT(2).pdf:264: NGCT (with the exception of dredging in Tees Dock, which,

IBPB8270R001F01_EIA REPORT(2).pdf:264: system), the area would be dredged by either the NGCT

IBPB8270R001F01_EIA REPORT(2).pdf:264: Tees Channel Dredge 0km project or the Tees Channel Dredge project (not both). This

IBPB8270R001F01_EIA REPORT(2).pdf:264: Tees Channel Dredge overlaps largely with that of the upstream end date

IBPB8270R001F01_EIA REPORT(2).pdf:264: Tees Channel Dredge project, therefore, has not been

IBPB8270R001F01_EIA REPORT(2).pdf:264: of the NGCT channel dredge (with the exception of the proposed

IBPB8270R001F01_EIA REPORT(2).pdf:264: dredge in Tees Dock proposed as part of the former).

IBPB8270R001F01_EIA REPORT(2).pdf:264: • Dredging of the existing berth and disposal of dredged

IBPB8270R001F01_EIA REPORT(2).pdf:266:Facilities and the ongoing maintenance dredging:

IBPB8270R001F01_EIA REPORT(2).pdf:266: • dispersion of suspended sediment during capital dredging and deposition;

IBPB8270R001F01_EIA REPORT(2).pdf:266:Dispersion of suspended sediment and deposition on the seabed during capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:266:All projects scoped into the assessment will involve capital dredging. This activity will create a plume of

IBPB8270R001F01_EIA REPORT(2).pdf:266:During the capital dredging works for the proposed NGCT, other port facilities on the Tees will remain

IBPB8270R001F01_EIA REPORT(2).pdf:266:operational. Maintenance dredging is, therefore, expected to continue throughout the capital dredge period.

IBPB8270R001F01_EIA REPORT(2).pdf:266:The capital dredge is also expected to influence the maintenance dredging requirements during and

IBPB8270R001F01_EIA REPORT(2).pdf:266:However, dredging of the lower reaches of the river to remove sands driven into the mouth of the river,

IBPB8270R001F01_EIA REPORT(2).pdf:266:represents the main maintenance dredging operation undertaken by PDT on the Tees. The capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:266:also requires the dredging of sands from the lower reaches of the river, which are to be used in the

IBPB8270R001F01_EIA REPORT(2).pdf:266:reclamation behind the new quay wall (assuming a closed quay is constructed). When capital dredging of

IBPB8270R001F01_EIA REPORT(2).pdf:266:maintenance dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:267:As a consequence, PDT will use this opportunity to undertake maintenance dredging elsewhere, for

IBPB8270R001F01_EIA REPORT(2).pdf:267:areas which are close to where the dredging for sands will be taking place for NGCT. If required, PDT will

IBPB8270R001F01_EIA REPORT(2).pdf:267:mobilise their own dredger to keep these berths at their required depths. This requirement, however, is

IBPB8270R001F01_EIA REPORT(2).pdf:267:unlikely to be significant. Nevertheless, the in-combination effects of the capital and maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:267:The extent of the sediment plume created by capital dredging is heavily dependent on the dredging plant

IBPB8270R001F01_EIA REPORT(2).pdf:267:that is adopted, and this is determined by (amongst other factors) the nature of the bed and the dredge

IBPB8270R001F01_EIA REPORT(2).pdf:267:volume. The EIAs have made informed assumptions about the most likely dredge plant that would be

IBPB8270R001F01_EIA REPORT(2).pdf:267:adopted and, in some cases, assumed that different types of plant would be used for dredging different

IBPB8270R001F01_EIA REPORT(2).pdf:267:sediment in the water column was predicted to be in close proximity to the dredger, with plume dispersion

IBPB8270R001F01_EIA REPORT(2).pdf:267:Significant deposition of sediment was also only predicted in close proximity to the dredging (and

IBPB8270R001F01_EIA REPORT(2).pdf:267:dredged as part of the capital works for each scheme. Beyond the immediate deposition footprint, significant

IBPB8270R001F01_EIA REPORT(2).pdf:268: dredging in the Tees estuary, spring tide, low flow conditions

IBPB8270R001F01_EIA REPORT(2).pdf:268:It should be noted that the potential for cumulative effects only arises should the dredging for the NGCT

IBPB8270R001F01_EIA REPORT(2).pdf:268:In the main Tees Channel, the addition of maintenance dredging activity in the Seaton Channel turning circle

IBPB8270R001F01_EIA REPORT(2).pdf:268:during the capital dredging for NGCT is not predicted to change either the peak concentration or deposition

IBPB8270R001F01_EIA REPORT(2).pdf:268:away from the immediate area of the maintenance dredging. The overall footprint of the concentration and

IBPB8270R001F01_EIA REPORT(2).pdf:269:deposition on Seal Sands is very similar to that for the capital dredge alone. However, the area of peak

IBPB8270R001F01_EIA REPORT(2).pdf:269:concentration greater than 50ppm is increased by the inclusion of the maintenance dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:269:At the sensitive receivers, whilst the presence of the sediment released by the maintenance dredging is

IBPB8270R001F01_EIA REPORT(2).pdf:269:to the capital dredging alone, but the resultant increases in deposition remain less than 0.1mm over the

IBPB8270R001F01_EIA REPORT(2).pdf:269:similar, although the effect of the NGCT capital dredge is more extensive and extends into Seaton Channel

IBPB8270R001F01_EIA REPORT(2).pdf:269:of very low magnitude. No intertidal sediment deposition is predicted during capital dredging for the York

IBPB8270R001F01_EIA REPORT(2).pdf:269:capital dredging have been proposed for the York Potash Harbour facilities and the NGCT. For the former

IBPB8270R001F01_EIA REPORT(2).pdf:269:project, mitigation comprises the use of specialist dredging equipment (i.e. an enclosed grab loading into a

IBPB8270R001F01_EIA REPORT(2).pdf:269:sealed barge) for dredging of unconsolidated material to minimise resuspension in the water column. This

IBPB8270R001F01_EIA REPORT(2).pdf:269:requirement is specified because of the elevated concentration of contaminants within the dredged

IBPB8270R001F01_EIA REPORT(2).pdf:269:or water levels due to the limited area of proposed dredging for this project. Hence, no cumulative impacts

IBPB8270R001F01_EIA REPORT(2).pdf:269:depth of the channel in the lower estuary that will arise from capital dredging for the NGCT.

IBPB8270R001F01_EIA REPORT(2).pdf:270:dredging is predicted to draw some of the flow to the south side of the estuary, although such effects are

IBPB8270R001F01_EIA REPORT(2).pdf:270:offshore; with the potential to increase the maintenance dredging requirements by approximately 10%. No

IBPB8270R001F01_EIA REPORT(2).pdf:270:maintenance dredging, and no effect on sediment supply to intertidal areas throughout the Tees estuary will

IBPB8270R001F01_EIA REPORT(2).pdf:270:The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine

IBPB8270R001F01_EIA REPORT(2).pdf:270:material to Seal Sands. However, the latest annual update to the Maintenance Dredging Baseline

IBPB8270R001F01_EIA REPORT(2).pdf:270:maintenance dredging regime could adversely affect the overall estuary morphology and the ongoing

IBPB8270R001F01_EIA REPORT(2).pdf:271:Potential for cumulative increase in suspended sediment during capital and maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:271:A cumulative effect on water quality as a result of dredging induced sediment plume generation will only

IBPB8270R001F01_EIA REPORT(2).pdf:271:occur should the dredging programme for the NGCT coincide with that of the York Potash Harbour Facilities.

IBPB8270R001F01_EIA REPORT(2).pdf:271:is unlikely, therefore, that the timing of the projects and their respective programmes of capital dredging will

IBPB8270R001F01_EIA REPORT(2).pdf:271:geological material within the dredge footprint for the consented York Potash Harbour Facilities was found

IBPB8270R001F01_EIA REPORT(2).pdf:271:It is therefore concluded that if the above dredging projects were to coincide, there would be an increase in

IBPB8270R001F01_EIA REPORT(2).pdf:271:nature of capital dredging, in addition to the intermittent nature of the peaks related to both tidal influence

IBPB8270R001F01_EIA REPORT(2).pdf:271:and location of the dredger. Mitigation incorporated into each project (and enforced through the permissions

IBPB8270R001F01_EIA REPORT(2).pdf:271:dredging and disposal of contaminated material.

IBPB8270R001F01_EIA REPORT(2).pdf:271:The latest Tees estuary Maintenance Dredging Baseline Document (Royal HaskoningDHV, 2019)

IBPB8270R001F01_EIA REPORT(2).pdf:271:concludes that, at water body level, maintenance dredging at current levels has no significant impact on

IBPB8270R001F01_EIA REPORT(2).pdf:271:dredging and proposed capital dredging works was investigated as part of the NGCT studies. These

IBPB8270R001F01_EIA REPORT(2).pdf:271:concluded that the combined effect of maintenance dredging being undertaken during the capital works will

IBPB8270R001F01_EIA REPORT(2).pdf:271:not be significantly different from those predicted as a consequence of the capital dredging alone, and this

IBPB8270R001F01_EIA REPORT(2).pdf:271:contaminants known to be present in sediments from the York Potash Harbour Facilities dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:271:dredging required for York Potash Harbour Facilities or ongoing maintenance dredging, with that required

IBPB8270R001F01_EIA REPORT(2).pdf:272:Potential for cumulative water quality impact due to maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:272:It is necessary to include maintenance dredging in the CIA to assess whether the potential exists for the

IBPB8270R001F01_EIA REPORT(2).pdf:272:NGCT to affect the nature of the ongoing maintenance dredge programme. The assessment presented in

IBPB8270R001F01_EIA REPORT(2).pdf:272:Section 6 concludes that there will be requirement to change the current maintenance dredging strategy in

IBPB8270R001F01_EIA REPORT(2).pdf:272:dredging for the NGCT scheme with the wider maintenance dredging programme in the Tees estuary,

IBPB8270R001F01_EIA REPORT(2).pdf:272:intertidal area with maintenance dredged silt, thereby enhancing the ecological value of the intertidal area

IBPB8270R001F01_EIA REPORT(2).pdf:273:capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:273:largely similar; however the effect of the NGCT dredge is larger, with deposition predicted to extend into

IBPB8270R001F01_EIA REPORT(2).pdf:273:Maintenance dredging is targeted at areas that require dredging to maintain navigable depths and, although

IBPB8270R001F01_EIA REPORT(2).pdf:273:It is concluded that there will be no cumulative effect on the maintenance dredging commitment and,

IBPB8270R001F01_EIA REPORT(2).pdf:274:dredging

IBPB8270R001F01_EIA REPORT(2).pdf:274:due to a sediment plume during capital dredging), given that the waterbirds potentially affected would be

IBPB8270R001F01_EIA REPORT(2).pdf:274:intertidal or subtidal areas given that there will be no effect on the maintenance dredging requirement due

IBPB8270R001F01_EIA REPORT(2).pdf:275:Effects on fish populations due to a sediment plume during capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:275:There is potential for the sediment plumes predicted to be generated by the dredging required for NGCT,

IBPB8270R001F01_EIA REPORT(2).pdf:275:York Potash Harbour Facilities and maintenance dredging to interact (assuming the dredging for each is

IBPB8270R001F01_EIA REPORT(2).pdf:275:dredging associated with these projects will result in an effect over a larger spatial extent than predicted for

IBPB8270R001F01_EIA REPORT(2).pdf:275:dredge footprint will pass adjacent to the site of the York Potash Harbour Facilities.

IBPB8270R001F01_EIA REPORT(2).pdf:276:27.5.8 Disposal of dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:276:The NGCT scheme involves the requirement to dispose of up to 3,830,000m3 of dredged material to be

IBPB8270R001F01_EIA REPORT(2).pdf:276:forthcoming prior to the dredge taking place. Section 26 concludes that the disposal of dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:277:to the maintenance dredging strategy for the Tees estuary, maintenance dredging during the operational

IBPB8270R001F01_EIA REPORT(2).pdf:277: • Hydromorphological impacts from capital dredging and the construction of a new quay.

IBPB8270R001F01_EIA REPORT(2).pdf:277: • Effects on biological habitats from capital dredging (removal of habitat / sedimentation).

IBPB8270R001F01_EIA REPORT(2).pdf:277: • Effects on fish due to the creation of a sediment plume from dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:277: • Effects on water quality due to the creation of a sediment plume from dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:277: • Effects of capital dredging on protected areas.

IBPB8270R001F01_EIA REPORT(2).pdf:277: • Undertaking dredging operations using a TSHD in long strips along the axis of the estuary rather

IBPB8270R001F01_EIA REPORT(2).pdf:277: than dredging along the width of the river. This is to reduce both the extent and impact of the

IBPB8270R001F01_EIA REPORT(2).pdf:283: The site qualifies under Article 4 • Water quality reductions from dredging,

IBPB8270R001F01_EIA REPORT(2).pdf:283: associated with offshore disposal of dredged

IBPB8270R001F01_EIA REPORT(2).pdf:286: • dredging up to 750,000m3 of material from the approach time as the NGCT, in-combination effects

IBPB8270R001F01_EIA REPORT(2).pdf:286: • dredging up to 372,000m3 of material from the approach loss of feeding grounds for pSPA and

IBPB8270R001F01_EIA REPORT(2).pdf:287: The Tees Channel Dredge project involves a proposed deepening

IBPB8270R001F01_EIA REPORT(2).pdf:287: The dredge footprint for NGCT overlaps

IBPB8270R001F01_EIA REPORT(2).pdf:287: with the proposed Tees channel dredge.

IBPB8270R001F01_EIA REPORT(2).pdf:287: for the Tees Channel Dredge; however, the environmental

IBPB8270R001F01_EIA REPORT(2).pdf:287: undertaken. The footprint of the proposed Tees Channel Dredge

IBPB8270R001F01_EIA REPORT(2).pdf:287: Dredge place Scoping process. However, it is 2016.

IBPB8270R001F01_EIA REPORT(2).pdf:287: channel dredge (with the exception of the proposed dredge in

IBPB8270R001F01_EIA REPORT(2).pdf:287: understood that the Tees Channel dredge

IBPB8270R001F01_EIA REPORT(2).pdf:287: NGCT dredge go ahead first.

IBPB8270R001F01_EIA REPORT(2).pdf:287: Given that the two dredge footprints largely overlap (with the

IBPB8270R001F01_EIA REPORT(2).pdf:287: exception of dredging in Tees Dock, which, given its location,

IBPB8270R001F01_EIA REPORT(2).pdf:287: dredged by either the NGCT project or the Tees Channel Dredge

IBPB8270R001F01_EIA REPORT(2).pdf:288: concluded that any effects of the Tees channel dredge would be

IBPB8270R001F01_EIA REPORT(2).pdf:288: maintenance dredging and disposal is

IBPB8270R001F01_EIA REPORT(2).pdf:288: the area. Although maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:288: dredging works required for the proposed

IBPB8270R001F01_EIA REPORT(2).pdf:288: maintenance granted by the dredging to occur elsewhere within the

IBPB8270R001F01_EIA REPORT(2).pdf:288: dredging at This activity has been on-going for many years. 0km MMO for Tees which could result in in-combination

IBPB8270R001F01_EIA REPORT(2).pdf:288: the Tees estuary disposal maintenance dredging at Hartlepool

IBPB8270R001F01_EIA REPORT(2).pdf:288: PDT’s maintenance dredge disposal

IBPB8270R001F01_EIA REPORT(2).pdf:289: window. In addition to the proposed dredge (and associated 5.5km and airborne noise and water quality

IBPB8270R001F01_EIA REPORT(2).pdf:289: disposal of dredged material), PDT is proposing to construct an reductions, which may have the potential

IBPB8270R001F01_EIA REPORT(2).pdf:290: involves minor ‘top-side’ works to the existing Infrastructure at the dredge considered to be of a sufficiently small

IBPB8270R001F01_EIA REPORT(2).pdf:290: Jetty 1 and Dolphin D, and a dredge of the river bed footprint scale that there would be no significant in-

IBPB8270R001F01_EIA REPORT(2).pdf:290: (with associated disposal of dredged material) to extend the combination effects with the proposed

IBPB8270R001F01_EIA REPORT(2).pdf:290: be dredged to -12mCD and the berths will be dredged to depths of date.

IBPB8270R001F01_EIA REPORT(2).pdf:290: up to -15mCD. It is estimated that the total capital dredge will be

IBPB8270R001F01_EIA REPORT(2).pdf:291: • Indirect impacts on foraging behaviour due to impacts on prey resource from to capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:291:assessment. Impacts associated with the offshore disposal of dredged material are also screened out.

IBPB8270R001F01_EIA REPORT(2).pdf:291: • Maintenance dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:294:proposed dredged trenches at the edges of the channel.

IBPB8270R001F01_EIA REPORT(2).pdf:294:swell height of 6m (return period of 1 in 1 year) will be reflected on the side of the dredged channel and

IBPB8270R001F01_EIA REPORT(2).pdf:294:Changes to the cross-sectional area of an estuary due to capital dredging and reclamation can influence

IBPB8270R001F01_EIA REPORT(2).pdf:295:29.5.5 Disturbance of the subtidal resource due to capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:295:The capital dredging required for the NGCT will result in the disturbance to 120ha of subtidal within the

IBPB8270R001F01_EIA REPORT(2).pdf:296:existing navigation channel and, therefore, is already dredged on a regular basis to maintain the advertised

IBPB8270R001F01_EIA REPORT(2).pdf:296:dredge depth. This area has been subject to ongoing maintenance dredging for a number of years and was

IBPB8270R001F01_EIA REPORT(2).pdf:296:subject to disturbance from maintenance dredging when Natural England proposed the revision to the

IBPB8270R001F01_EIA REPORT(2).pdf:296:of species and appears to show signs of disturbance. Following completion of the NGCT capital dredge,

IBPB8270R001F01_EIA REPORT(2).pdf:296:dredging, leads to the conclusion that the capital dredging of the channel for NGCT will not result in an

IBPB8270R001F01_EIA REPORT(2).pdf:296:operations (as well as the dredging and construction activities) will be for fish to move away from the source.

IBPB8270R001F01_EIA REPORT(2).pdf:298:indirectly impact on foraging behaviour for birds. As reported in Section 7, the sediment to be dredged does

IBPB8270R001F01_EIA REPORT(2).pdf:298:immediate vicinity of the dredger). Therefore, it is predicated that the impacts beyond the immediate vicinity

IBPB8270R001F01_EIA REPORT(2).pdf:298:of the dredger would be negligible in terms of reductions in foraging ability, as the predicted increases in

IBPB8270R001F01_EIA REPORT(2).pdf:298:returning to background levels relatively quickly following completion of the dredge. Terns are considered

IBPB8270R001F01_EIA REPORT(2).pdf:298:Given the duration of the proposed dredge (up to 33 weeks for mudstone and between four and 11 weeks

IBPB8270R001F01_EIA REPORT(2).pdf:298:the immediate vicinity of the dredger. This would in fact lead to a marginal increase in density in the areas

IBPB8270R001F01_EIA REPORT(2).pdf:298:occurrence of daily maintenance dredging already occurring in this area suggest that alternative areas for

IBPB8270R001F01_EIA REPORT(2).pdf:298:the axis of the estuary, rather than dredging across the width of the river. This will reduce both the extent

IBPB8270R001F01_EIA REPORT(2).pdf:299:and impact of the dredged plume, as any plume generated by operations has been predicted (by HR

IBPB8270R001F01_EIA REPORT(2).pdf:299:Wallingford during 2006) to remain on the same side of the river as the dredging operation.

IBPB8270R001F01_EIA REPORT(2).pdf:299:This methodology will ensure that a completed strip of the river is clear before the dredger is deployed to

IBPB8270R001F01_EIA REPORT(2).pdf:299:Mitigation of the plume effects by reducing the size of the dredger, and thus reducing the rate of overflow,

IBPB8270R001F01_EIA REPORT(2).pdf:299:is not viable since the size of dredger has to be sufficient to carry a large enough drag head and to have

IBPB8270R001F01_EIA REPORT(2).pdf:299:sufficient propulsion power to undertake the required dredging operation.

IBPB8270R001F01_EIA REPORT(2).pdf:299:the shallower waters. Mitigation of the suspended sediment generated by reducing the size of the dredger,

IBPB8270R001F01_EIA REPORT(2).pdf:299:and thus reducing the rate of overflow, will not be possible as a smaller dredger would have insufficient

IBPB8270R001F01_EIA REPORT(2).pdf:300: • Effects on marine water quality during dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:301:Facilities ES (which considered the NGCT and ongoing maintenance dredging). Consequently, it is

IBPB8270R001F01_EIA REPORT(2).pdf:301:approximately 3km distant from the boundary of the pSPA. Maintenance dredging is also not considered

IBPB8270R001F01_EIA REPORT(2).pdf:302: maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:302:combination effects are those that would require capital and maintenance dredging. Such projects comprise

IBPB8270R001F01_EIA REPORT(2).pdf:302:the York Potash Harbour Facilities, ongoing maintenance dredging, Dogger Bank A and B and Hartlepool

IBPB8270R001F01_EIA REPORT(2).pdf:302:An interaction between the sediment plumes predicted to be generated by capital dredging associated with

IBPB8270R001F01_EIA REPORT(2).pdf:302:consented projects in the Tees estuary (and at Hartlepool) would only occur should the dredging

IBPB8270R001F01_EIA REPORT(2).pdf:302:programmes of each scheme overlap (which is considered unlikely). If the dredge programmes do overlap,

IBPB8270R001F01_EIA REPORT(2).pdf:302:alone, but within the same predicted spatial extent of the plume for NGCT (as the NGCT dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:302:In addition to the above impact, capital dredging has the potential to disturb fish by smothering feeding

IBPB8270R001F01_EIA REPORT(2).pdf:302:NGCT and the York Potash Harbour Facilities are similar, although the effect of NGCT capital dredging is

IBPB8270R001F01_EIA REPORT(2).pdf:302:of the York Potash Harbour Facilities dredge, and therefore there is no potential for an in-combination effect

IBPB8270R001F01_EIA REPORT(2).pdf:302:only in close proximity to the dredging (and reclamation) over the slack water period. In practice, much of

IBPB8270R001F01_EIA REPORT(2).pdf:302:this deposited material would be re-dredged as part of the capital works. The magnitude of deposition

IBPB8270R001F01_EIA REPORT(2).pdf:302:The potential in-combination impact between maintenance dredging and proposed capital dredging works

IBPB8270R001F01_EIA REPORT(2).pdf:302:combined effect of maintenance dredging during the capital works is not significantly different from that

IBPB8270R001F01_EIA REPORT(2).pdf:302:predicted as a consequence of the NGCT capital dredging alone. However, in practice, it is likely that

IBPB8270R001F01_EIA REPORT(2).pdf:302:maintenance dredging in the wider estuary will not be undertaken during a significant capital dredge; this

IBPB8270R001F01_EIA REPORT(2).pdf:303:Potash Harbour Facilities (i.e. use of an enclosed grab for dredge contaminated sediments) would remove

IBPB8270R001F01_EIA REPORT(2).pdf:303:capital dredging required for NGCT is predicted to result in an increase in SSC, which has potential to result

IBPB8270R001F01_EIA REPORT(2).pdf:303:estuary (in the order of 25mg/l increase outside of the immediate vicinity of the dredger). As noted in Section

IBPB8270R001F01_EIA REPORT(2).pdf:303:following completion of the dredge. Terns are considered likely to be able to continue feeding effectively

IBPB8270R001F01_EIA REPORT(2).pdf:303:with any effect confined to the footprint of the proposed dredge. The predicted increase in suspended

IBPB8270R001F01_EIA REPORT(2).pdf:303:impact dissipating within 10 minutes following completion of the dredge. It was therefore concluded that an

IBPB8270R001F01_EIA REPORT(2).pdf:304:Facility. The ongoing maintenance dredging is also not considered here as this forms part of the baseline

IBPB8270R001F01_EIA REPORT(2).pdf:305:subject to maintenance dredging and offshore disposal as part of ongoing maintenance dredging. Predicted

IBPB8270R001F01_EIA REPORT(2).pdf:306:Rumney, H., Barber, J., Rance, J., McIlwaine, P. & Law, R.L.J. 2011. Dredged Material Disposal Site

IBPB8270R001F01_EIA REPORT(2).pdf:306:Cefas, 2010. Use of Action Levels in Dredged Material Assessments.

IBPB8270R001F01_EIA REPORT(2).pdf:307:Royal Haskoning, 2008. Tees Maintenance Dredge Baseline Document

IBPB8270R001F01_EIA REPORT(2).pdf:307:Royal Haskoning, 2011. Tees Dock No. 1 Quay – revised scope for EIA in relation to capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:308:Royal HaskoningDHV, 2017. Tees Maintenance Dredging Annual Review 2016.

IBPB8270R001F01_EIA REPORT(2).pdf:316:(24) The Northern Gateway Container Terminal: Dredging Protocol (PD Teesport,

IBPB8270R001F01_EIA REPORT(2).pdf:316:2007 will be implemented in full during the period of capital dredging operations.

IBPB8270R001F01_EIA REPORT(2).pdf:317:This will entail the submission of a dredging programme to the relevant statutory

IBPB8270R001F01_EIA REPORT(2).pdf:317:concentrations during capital dredging activities will be agreed with the Local

IBPB8270R001F01_EIA REPORT(2).pdf:318:sediment monitoring during dredging/construction has been submitted to and

IBPB8270R001F01_EIA REPORT(2).pdf:321: dredging, construction of a new quay wall, reclamation and

IBPB8270R001F01_EIA REPORT(2).pdf:321: modifications and the disposal of dredged material.

IBPB8270R001F01_EIA REPORT(2).pdf:321: maintenance dredge depth, volume and/or frequency and

IBPB8270R001F01_EIA REPORT(2).pdf:321: the maintenance dredging commitment is not foreseen, SR

IBPB8270R001F01_EIA REPORT(2).pdf:321: Maintenance Dredging licence then a variation may be

IBPB8270R001F01_EIA REPORT(2).pdf:323: year round maintenance dredging activities. SR

IBPB8270R001F01_EIA REPORT(2).pdf:324: 5.8 Offshore disposal of dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:328:of dredged site, other than the landside elements that have commenced, as

IBPB8270R001F01_EIA REPORT(2).pdf:328:material a result of reusing dredged material, may require an

IBPB8270R001F01_EIA REPORT(2).pdf:328: of dredging materials may be found on the GOV website, while

IBPB8270R001F01_EIA REPORT(2).pdf:328: storage and re-use of dredged material, while the land raising

IBPB8270R001F01_EIA REPORT(2).pdf:329:sediment quality samples and analysis of the dredge material may be required to

IBPB8270R001F01_EIA REPORT(2).pdf:329: disposal of the dredged material.

IBPB8270R001F01_EIA REPORT(2).pdf:332: aim is to undertake the dredging in advance using its own equipment,

IBPB8270R001F01_EIA REPORT(2).pdf:333: creation using dredged material from the Hartlepool channel scheme

IBPB8270R001F01_EIA REPORT(2).pdf:333: around the beneficial use of dredged sediment as it is not always

IBPB8270R001F01_EIA REPORT(2).pdf:334: construction rather than the dredge given that the former would result

IBPB8270R001F01_EIA REPORT(2).pdf:335: A discussion was held around seasonal restrictions on the dredging

IBPB8270R001F01_EIA REPORT(2).pdf:335: with no restrictions, and maintenance dredging is undertaken on a

IBPB8270R001F01_EIA REPORT(2).pdf:336: Offshore disposal of dredged material:

IBPB8270R001F01_EIA REPORT(2).pdf:338: have also been required to commission a maintenance dredging baseline

IBPB8270R001F01_EIA REPORT(2).pdf:338: and deepening by dredging, the current depth at the mouth is about double this

IBPB8270R001F01_EIA REPORT(2).pdf:338: natural level. Dredging and training works have occurred since the

IBPB8270R001F01_EIA REPORT(2).pdf:338: establishment of the first dredged channel of 4.3m from Middlesbrough Docks to

IBPB8270R001F01_EIA REPORT(2).pdf:338: the sea after 1853. The present dredged channel has declared depths of 15.4m

IBPB8270R001F01_EIA REPORT(2).pdf:339: channel now declared at 14.1m below CD were originally dredged to a deeper

IBPB8270R001F01_EIA REPORT(2).pdf:339: depth. The present channel has a backlog of maintenance dredging and some

IBPB8270R001F01_EIA REPORT(2).pdf:339: dredgings

IBPB8270R001F01_EIA REPORT(2).pdf:339: cost of disposal of maintenance dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:343: by dredging operations. These last two were postulated by HR Wallingford

IBPB8270R001F01_EIA REPORT(2).pdf:343: 6. Comparison of the above figures with the present knowledge of the dredging

IBPB8270R001F01_EIA REPORT(2).pdf:344: chart areas used by PD Teesport to manage their maintenance dredging activity.

IBPB8270R001F01_EIA REPORT(2).pdf:344: 8. The most recent evidence for types of maintenance dredging material from PD

IBPB8270R001F01_EIA REPORT(2).pdf:344: Teesport (pers. comm.) suggests that out of the 1.35 million m3 dredged

IBPB8270R001F01_EIA REPORT(2).pdf:344:Figure 6.2 Bed types of material dredged in 1991

IBPB8270R001F01_EIA REPORT(2).pdf:344: dredging have resulted in an estuary that is essentially a narrow ‘canalised’

IBPB8270R001F01_EIA REPORT(2).pdf:345:6.3.1 Dispersion of material during capital dredging

IBPB8270R001F01_EIA REPORT(2).pdf:345: 1. PD Teesport commissioned Dredging Research Ltd (DRL) to undertake a study

IBPB8270R001F01_EIA REPORT(2).pdf:345: of available dredging methods for the capital dredging. DRL were also

IBPB8270R001F01_EIA REPORT(2).pdf:345: the studies on the dispersion of the sediment plume arising during dredging, as

IBPB8270R001F01_EIA REPORT(2).pdf:345: a) There are three potential types of dredger that might be used in the works.

IBPB8270R001F01_EIA REPORT(2).pdf:345: These are the Cutter Suction Dredger (CSD), the Trailing Suction Hopper

IBPB8270R001F01_EIA REPORT(2).pdf:345: Dredger (TSHD) and the Backhoe Dredger (BD). All have their advantages and

IBPB8270R001F01_EIA REPORT(2).pdf:345: disadvantages for dealing with separate zones of dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:345: b) Taking the entire dredging requirement into consideration, it is probable that

IBPB8270R001F01_EIA REPORT(2).pdf:345: c) The choice of dredger will depend to a great extent on the location of the

IBPB8270R001F01_EIA REPORT(2).pdf:345: material to be dredged, its strength and thickness, and the impact of the

IBPB8270R001F01_EIA REPORT(2).pdf:345: types of dredgers will also play a significant role in making this choice.

IBPB8270R001F01_EIA REPORT(2).pdf:345: d) Losses of suspended sediment are inevitable at the dredging face or draghead,

IBPB8270R001F01_EIA REPORT(2).pdf:345: order of magnitude greater than those occurring at the dredging face or

IBPB8270R001F01_EIA REPORT(2).pdf:345: and THSDs in these conditions. Hence, the choice of dredger type is unlikely to

IBPB8270R001F01_EIA REPORT(2).pdf:345: not possible due to the fact that smaller dredgers would be ineffective in the

IBPB8270R001F01_EIA REPORT(2).pdf:345: stronger materials to be dredged.

IBPB8270R001F01_EIA REPORT(2).pdf:345: 3. Of the three types of dredger that might be used, the BD has a working rate that

IBPB8270R001F01_EIA REPORT(2).pdf:345: above, the BD would only be used for a very limited proportion of the dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:345: 4. The TSHD sails up and down a section of the area to be dredged sucking up a

IBPB8270R001F01_EIA REPORT(2).pdf:345: into a hopper on the dredger. The proportion of sediment loaded into the hopper

IBPB8270R001F01_EIA REPORT(2).pdf:345: can be increased by continuing to dredge after the hopper is initially filled with a

IBPB8270R001F01_EIA REPORT(2).pdf:346: dredger draghead and so it is the only sediment source considered for sediment

IBPB8270R001F01_EIA REPORT(2).pdf:346: (and water) is sucked to the dredger before being discharged either ashore or

IBPB8270R001F01_EIA REPORT(2).pdf:346: by continuing to dredge after the plant is filled with the overspill resulting in

IBPB8270R001F01_EIA REPORT(2).pdf:346: source of fine sediment released along the path of the dredging activity (i.e. in

IBPB8270R001F01_EIA REPORT(2).pdf:346: 6. It is proposed that a TSHD will be used for the dredging and reclamation of

IBPB8270R001F01_EIA REPORT(2).pdf:346: the dredging of the mudstone (approximately 3.8 million m3). If mudstone is to

IBPB8270R001F01_EIA REPORT(2).pdf:346:Cutter Suction Dredger

IBPB8270R001F01_EIA REPORT(2).pdf:347:Trailing Suction Hopper Dredger (6,000m3 capacity)

IBPB8270R001F01_EIA REPORT(2).pdf:347:Dredge cycle time = 190 mins

IBPB8270R001F01_EIA REPORT(2).pdf:347:Total dredge time = 60 mins

IBPB8270R001F01_EIA REPORT(2).pdf:347:Speed of dredger when dredging = 0.75 m/s (1.5 knots)

IBPB8270R001F01_EIA REPORT(2).pdf:347: three dredging scenarios. Two of these scenarios represented a CSD loading

IBPB8270R001F01_EIA REPORT(2).pdf:347: the flood tide. Overflow for one hour during the dredging was represented along

IBPB8270R001F01_EIA REPORT(2).pdf:347: the dredgers and barge overflow releasing material into the bottom metre of the

IBPB8270R001F01_EIA REPORT(2).pdf:348: Dredge locations for cutter

IBPB8270R001F01_EIA REPORT(2).pdf:348: Dredge locations for trailer 1 2

IBPB8270R001F01_EIA REPORT(2).pdf:348:Figure 6.3 Simulated dredge locations for CSD and THDS and ‘sensitive’

IBPB8270R001F01_EIA REPORT(2).pdf:349:Implications of dredging using a cutter suction dredger

IBPB8270R001F01_EIA REPORT(2).pdf:349: 12. For all the dredger simulations, the largest rise in peak concentrations and

IBPB8270R001F01_EIA REPORT(2).pdf:349: deposition were in the immediate vicinity of the dredger, centred either at the

IBPB8270R001F01_EIA REPORT(2).pdf:349: dredger track. Figures 6.4 to 6.5 show the results from the simulation of the

IBPB8270R001F01_EIA REPORT(2).pdf:349: deposition on the seabed arising from dredging at the two upstream locations.

IBPB8270R001F01_EIA REPORT(2).pdf:350:Figure 6.4 Peak concentration and peak deposition for cutter suction dredger

IBPB8270R001F01_EIA REPORT(2).pdf:351:Figure 6.5 Peak concentration and peak deposition for cutter suction dredger

IBPB8270R001F01_EIA REPORT(2).pdf:352: to the barge loading site when dredging the Tees Dock turning circle (Figure

IBPB8270R001F01_EIA REPORT(2).pdf:352: 6.4). When dredging the area adjacent to the proposed reclamation, peak

IBPB8270R001F01_EIA REPORT(2).pdf:352: deposition in the immediate vicinity of the dredging activity (Figure 6.5). It

IBPB8270R001F01_EIA REPORT(2).pdf:352: footprint of the dredging and/or reclamation and as such it would be re-dredged

IBPB8270R001F01_EIA REPORT(2).pdf:352: or would deposit within an area which has already been dredged.

IBPB8270R001F01_EIA REPORT(2).pdf:352: 16. In the CSD scenarios simulated, the dredging of mudstone (with a single CSD)

IBPB8270R001F01_EIA REPORT(2).pdf:352: redredged as part of the capital works or subsequent maintenance dredging and

IBPB8270R001F01_EIA REPORT(2).pdf:352:Implications of dredging using a trailing suction hopper dredger

IBPB8270R001F01_EIA REPORT(2).pdf:352: 17. For spring tide conditions with low freshwater flow, the effect of dredging sandy

IBPB8270R001F01_EIA REPORT(2).pdf:352: between 500mg/l and 1000mg/l occur along the dredger track and in the vicinity

IBPB8270R001F01_EIA REPORT(2).pdf:352: simulated) (see Figure 6.7). The effect of dredging in the approach channel on

IBPB8270R001F01_EIA REPORT(2).pdf:353: 18. In the scenario simulated, the dredging of sand will take about 30 days. The

IBPB8270R001F01_EIA REPORT(2).pdf:353: 400,000m3. This material would need to be redredged as part of the capital

IBPB8270R001F01_EIA REPORT(2).pdf:353: works or subsequent maintenance dredging and disposed offshore. Some

IBPB8270R001F01_EIA REPORT(2).pdf:354:Figure 6.6 Peak concentration and deposition for TSHD dredging sand in the

IBPB8270R001F01_EIA REPORT(2).pdf:355: and Seal Sands (Locations 3 and 4) for TSHD dredging sand in the

IBPB8270R001F01_EIA REPORT(2).pdf:356: 2) and Seal Sands (Locations 3 and 4) for TSHD dredging sand in

IBPB8270R001F01_EIA REPORT(2).pdf:357: TSHD dredging sand in approach channel, spring tide low flow

IBPB8270R001F01_EIA REPORT(2).pdf:366: presence of the proposed channel dredging and reclamation. The model was

IBPB8270R001F01_EIA REPORT(2).pdf:370: of the proposed dredged side trenches in the area upstream of Redcar.

IBPB8270R001F01_EIA REPORT(2).pdf:372: dredged trenches at the edges of the channel.

IBPB8270R001F01_EIA REPORT(2).pdf:373: height of 10cm. This pattern would not be altered by the presence of dredged

IBPB8270R001F01_EIA REPORT(2).pdf:374: side of the dredged channel and reach the area around the ConocoPhillips Oil

IBPB8270R001F01_EIA REPORT(2).pdf:374: by the inclusion of dredged side trenches in the channel upstream of Redcar as

IBPB8270R001F01_EIA REPORT(2).pdf:375: fact that there is presently a backlog of maintenance dredging at this location in

IBPB8270R001F01_EIA REPORT(2).pdf:375: channel. PD Teesport could dredge to 14.1m below CD at this location at

IBPB8270R001F01_EIA REPORT(2).pdf:376: recorded dredging volumes for the outer areas of the navigation channel (areas

IBPB8270R001F01_EIA REPORT(2).pdf:376: in the dredged areas will be largely unchanged by the development and hence

IBPB8270R001F01_EIA REPORT(2).pdf:376: dredged are of the order of 20-25% of the total accumulation (PDT, pers.

IBPB8270R001F01_EIA REPORT(2).pdf:376: potential for effect on the maintenance dredging requirement in the estuary and

IBPB8270R001F01_EIA REPORT(2).pdf:376: resuspension and upstream movement as a result of agitation by dredging

IBPB8270R001F01_EIA REPORT(2).pdf:377: fluvial sources). This total is of the right order compared to in situ dredged

IBPB8270R001F01_EIA REPORT(2).pdf:378: the proposed capital dredge introduces only minor changes to the existing

IBPB8270R001F01_EIA REPORT(2).pdf:379: 12. The dredging will increase the bed slope outside the entrance to Dabholm Gut

IBPB8270R001F01_EIA REPORT(2).pdf:380: of fine material with the potential to increase the maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:380: fine material removed by maintenance dredging operations from the turning

IBPB8270R001F01_EIA REPORT(2).pdf:381: from dredger operations).

IBPB8270R001F01_EIA REPORT(2).pdf:381: • Short term deposition during dredging operations (up to 3% of material dredged

IBPB8270R001F01_EIA REPORT(2).pdf:381: turning area if the new dredged side slopes need to adjust themselves to reach

IBPB8270R001F01_EIA REPORT(2).pdf:382: channel dredging was amended in order to ensure that no adverse effect would

IBPB8270R001F01_EIA REPORT(2).pdf:382: • Redesigning the deepened Seaton Channel turning circle to avoid dredging

IBPB8270R001F01_EIA REPORT(2).pdf:382: capital dredging in the lower channel and run for spring tide conditions under

IBPB8270R001F01_EIA REPORT(2).pdf:382: dredging in the lower channel (i.e. not the effect of the channel dredging in total;

IBPB8270R001F01_EIA REPORT(2).pdf:383: proposed capital dredging are not affected by the proposed minor changes to

IBPB8270R001F01_EIA REPORT(2).pdf:384: capital dredging in the lower channel on peak current speeds at

IBPB8270R001F01_EIA REPORT(2).pdf:385: capital dredging in the lower channel on peak current speeds at

IBPB8270R001F01_EIA REPORT(2).pdf:386: capital dredging in the lower channel on depth-averaged tidal

IBPB8270R001F01_EIA REPORT(2).pdf:388:licence (L/2015/00427/1) for maintenance dredging within the Tees estuary; this condition requires PDT

IBPB8270R001F01_EIA REPORT(2).pdf:388:to collect and analyse sediment samples from the dredge area every three years. As well as confirming

IBPB8270R001F01_EIA REPORT(2).pdf:389: • Capital dredging within the existing dredged approach channel.

IBPB8270R001F01_EIA REPORT(2).pdf:389: • Capital dredging of deep water berthing areas alongside the proposed quay face (dredged to

IBPB8270R001F01_EIA REPORT(2).pdf:389: • Pumping suitable dredged material ashore for use in the reclamation works and for locally raising

IBPB8270R001F01_EIA REPORT(2).pdf:389: • Disposal of the balance of the capital dredged material at existing offshore disposal grounds in

IBPB8270R001F01_EIA REPORT(2).pdf:389: Although currently dredged to 10.4m bCD, some further highly localised dredging will be required

IBPB8270R001F01_EIA REPORT(2).pdf:389:Further detail regarding the dredge, disposal and construction activities is provided below:

IBPB8270R001F01_EIA REPORT(2).pdf:389: 3.1. Dredging

IBPB8270R001F01_EIA REPORT(2).pdf:389:Table 1 provides a summary of the current and design dredge depths to be achieved as part of the

IBPB8270R001F01_EIA REPORT(2).pdf:389:Table 1 Current and design dredge depths for the NGCT

IBPB8270R001F01_EIA REPORT(2).pdf:389: depth (m bCD) depth (m bCD) to be dredged (Mm3)

IBPB8270R001F01_EIA REPORT(2).pdf:390:Figure 1 Dredge areas for the NGCT (the small scale and localised dredging at QEII Berth required for relocation of the Riverside

IBPB8270R001F01_EIA REPORT(2).pdf:391:The total volume of material that will arise from the capital dredging will be approximately 4.8 million m3.

IBPB8270R001F01_EIA REPORT(2).pdf:391:Based on previous investigations and capital dredging in the estuary, it is expected that, broadly, three

IBPB8270R001F01_EIA REPORT(2).pdf:391:material types would be dredged; silts and soft alluvial deposits, Mercia mudstone (boulder clay) and

IBPB8270R001F01_EIA REPORT(2).pdf:391:because the channel and Seaton Channel turning circle have previously been dredged to a greater depth

IBPB8270R001F01_EIA REPORT(2).pdf:391:dredging in this area with some parts of the channel at depths above 14.1m below CD. There is also

IBPB8270R001F01_EIA REPORT(2).pdf:391:encountered. The total volume of silts and alluvial deposits to be dredged is expected to be small relative

IBPB8270R001F01_EIA REPORT(2).pdf:391:to the overall volume of the dredge given that the channel is already subject to maintenance dredging.

IBPB8270R001F01_EIA REPORT(2).pdf:391:It is anticipated that dredging works will be divided into two phases as follows;

IBPB8270R001F01_EIA REPORT(2).pdf:391: hopper dredger (TSHD).

IBPB8270R001F01_EIA REPORT(2).pdf:391: • Phase 2: the removal of mudstone using a cutter suction dredger (CSD) loading into hopper

IBPB8270R001F01_EIA REPORT(2).pdf:391: barges. As part of this phase, 20m wide, 1m deep trenches would be dredged on the inside of

IBPB8270R001F01_EIA REPORT(2).pdf:391: the edge of the dredged channel in the area upstream of Redcar in areas where there is not an

IBPB8270R001F01_EIA REPORT(2).pdf:391: existing dredged berth pocket. The purpose of these trenches is to allow maintenance material

IBPB8270R001F01_EIA REPORT(2).pdf:391:Due to the high production rates required for the deepening, the vast majority of the dredging would, as

IBPB8270R001F01_EIA REPORT(2).pdf:391:backhoe dredger (BD) for small areas of dredging in confined areas, for example, alongside the existing

IBPB8270R001F01_EIA REPORT(2).pdf:391:Maintenance dredging will be required during the operational. As a result of the NGCT, it is predicted

IBPB8270R001F01_EIA REPORT(2).pdf:391:that there will not be a requirement to adjust the maintenance dredging strategy (e.g. the annual volume

IBPB8270R001F01_EIA REPORT(2).pdf:391:dredged is not predicted to change significantly beyond the existing variability in maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:391: 3.2. Disposal of dredged material

IBPB8270R001F01_EIA REPORT(2).pdf:391:It is anticipated that all the granular material arising from the dredging would be used within the

IBPB8270R001F01_EIA REPORT(2).pdf:391:arise from routine maintenance dredging. A total of approximately 1.9 million m3 of material would be

IBPB8270R001F01_EIA REPORT(2).pdf:391:Opportunities for the beneficial re-use of dredged material (in addition to use in reclamation) will be

IBPB8270R001F01_EIA REPORT(2).pdf:392:currently dredged to 10.4m bCD.

IBPB8270R001F01_EIA REPORT(2).pdf:392: • Although currently dredged to 10.4m bCD, some further highly localised dredging will be required

IBPB8270R001F01_EIA REPORT(2).pdf:392:including Abra alba, were also present at locations within the dredged channel. The infaunal community

IBPB8270R001F01_EIA REPORT(2).pdf:392:largely made up of opportunistic species which colonise the area in between maintenance dredging

IBPB8270R001F01_EIA REPORT(2).pdf:392:programmes. At near-shore and undredged locations, the opportunistic Ophryotrocha sp. and Capitella

IBPB8270R001F01_EIA REPORT(2).pdf:395:of grab samples at two stations within the proposed dredge footprint for QEII. Data from the survey were

IBPB8270R001F01_EIA REPORT(2).pdf:396:be sampled due to recent dredging activity over one site and restricted tidal accessibility to the other.

IBPB8270R001F01_EIA REPORT(2).pdf:396:to deposition of sediment that will be disturbed during the capital dredging (giving a total of 13 sampling

IBPB8270R001F01_EIA REPORT(2).pdf:398: Maintenance dredge footprint in the Tees estuary

IBPB8270R001F01_EIA REPORT(2).pdf:398: NGCT dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:398: Indicative dredge footprint for QEII Berth Development

IBPB8270R001F01_EIA REPORT(2).pdf:398: Trafigura dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:398: ! Sediment Sample Locations in Trafigura dredge footprint

IBPB8270R001F01_EIA REPORT(2).pdf:399:order to characterise the area that was proposed to be dredged as part of the QEII Berth project. Two

IBPB8270R001F01_EIA REPORT(2).pdf:400:the Mercia mudstone constituent of the proposed dredge was licensed for offshore disposal. The marine

IBPB8270R001F01_EIA REPORT(2).pdf:400:licence states that the unconsolidated deposits need to be dredged using an enclosed grab, loading into

IBPB8270R001F01_EIA REPORT(2).pdf:401:be subject to dredging for the NGCT). Samples were recovered from a maximum depth of 1.6m below

IBPB8270R001F01_EIA REPORT(2).pdf:401:Maintenance dredging sampling

IBPB8270R001F01_EIA REPORT(2).pdf:401:of its 10 year licence for disposal of maintenance dredged arisings from the Tees estuary. PDT has

IBPB8270R001F01_EIA REPORT(2).pdf:401:recently submitted a sampling plan request for the Hartlepool channel project (capital dredge) and mid-

IBPB8270R001F01_EIA REPORT(2).pdf:401:licence sampling for its maintenance dredge source area at Hartlepool (reference SAM/2018/00050).

IBPB8270R001F01_EIA REPORT(2).pdf:401:results of which would be suitable to inform a future dredge campaign at Hartlepool channel, as well as

IBPB8270R001F01_EIA REPORT(2).pdf:401:requirements for the other dredge areas included in L/2015/00427/1 (i.e. the maintenance areas in the

IBPB8270R001F01_EIA REPORT(2).pdf:401:During October 2018, PDT recovered six surface samples from the footprint of a proposed dredge for the

IBPB8270R001F01_EIA REPORT(2).pdf:401:MMO (SAM/2018/00005). The location of these six samples in relation to the maintenance dredge

IBPB8270R001F01_EIA REPORT(2).pdf:402:undertaken for the 2014 survey does not extend into the most downstream areas of the NGCT dredge

IBPB8270R001F01_EIA REPORT(2).pdf:402:the proposed dredge post 2006. In addition, it is recognised that the most recent benthic ecological

IBPB8270R001F01_EIA REPORT(2).pdf:402:survey data from within the dredge footprint was recovered during 2014, and is therefore likely to be

IBPB8270R001F01_EIA REPORT(2).pdf:402:dredged material. We propose to recover four grab samples from within and four grabs around each of

IBPB8270R001F01_EIA REPORT(2).pdf:403:location of the proposed terminal, the berthing pocket and area that is proposed to be dredged within the

IBPB8270R001F01_EIA REPORT(2).pdf:404:“Disposal at sea will be subject to a marine licence and new samples and analysis of the dredge material

IBPB8270R001F01_EIA REPORT(2).pdf:404:for at sea disposal of the dredged material.”

IBPB8270R001F01_EIA REPORT(2).pdf:404:throughout the proposed dredge footprint and from within the proposed relocation area for the Riverside

IBPB8270R001F01_EIA REPORT(2).pdf:404:sediments within the dredge footprint were suitable for offshore disposal. Sampling in 2008 for the QEII

IBPB8270R001F01_EIA REPORT(2).pdf:404:subject to previous maintenance dredging (i.e. a significantly different setting to that within the proposed

IBPB8270R001F01_EIA REPORT(2).pdf:404:dredge footprint in the main channel)) confirmed contaminants within the unconsolidated sediments

IBPB8270R001F01_EIA REPORT(2).pdf:404:(L/2013/00404/5), there is a mechanism in place for appropriately dredging the contaminated

IBPB8270R001F01_EIA REPORT(2).pdf:404:Based on the above, in addition to the fact that the vast majority of sediments to be dredged comprise

IBPB8270R001F01_EIA REPORT(2).pdf:404:maintenance dredging), it is proposed that samples from the surface only will be collected. It is

IBPB8270R001F01_EIA REPORT(2).pdf:404:(specifically the 2008 and 2014 surveys), which confirm that the sediments to be dredged at depth

IBPB8270R001F01_EIA REPORT(2).pdf:404:Level 2. It is recognised that there is also a requirement to undertake local dredging at QEII Berth, and

IBPB8270R001F01_EIA REPORT(2).pdf:404:deposits at depth at this location (and there is already an agreed mechanism for managing any dredging

IBPB8270R001F01_EIA REPORT(2).pdf:404:through dredging technique), it is concluded that additional sampling at depth would provide no additional

IBPB8270R001F01_EIA REPORT(2).pdf:404:dredge footprint.

IBPB8270R001F01_EIA REPORT(2).pdf:404:Based on the OSPAR Guidelines for the Management of Dredged Material (as revised and adopted in

IBPB8270R001F01_EIA REPORT(2).pdf:404:2014), the number of samples required is determined on the quantity of sediment to be dredged. The

IBPB8270R001F01_EIA REPORT(2).pdf:405:Based on the OSPAR guidance, a dredge volume of 4.8 million m3 would equate to 44 – 58 surface

IBPB8270R001F01_EIA REPORT(2).pdf:405:sediment samples (this is a guide only) collected at evenly distributed locations across the dredge

IBPB8270R001F01_EIA REPORT(2).pdf:405: • Cefas Guideline Action Levels for the disposal of dredged material (Cefas, undated);

IBPB8270R001F01_EIA REPORT(2).pdf:405:dredged material from the Tees estuary (taking into account the fact that an agreement has already been

IBPB8270R001F01_EIA REPORT(2).pdf:405:samples recovered within the dredge footprint for the proposed Teesside GasPort).

IBPB8270R001F01_EIA REPORT(2).pdf:405:the NGCT dredge footprint to inform the mid-licence sampling requirements for its maintenance dredge

IBPB8270R001F01_EIA REPORT(2).pdf:408: project which comprises a capital dredge of 4.8 million mᶟ (the proposed dredge

IBPB8270R001F01_EIA REPORT(2).pdf:408: depths vary over the seven dredge areas). The sampling advice relates to the disposal

IBPB8270R001F01_EIA REPORT(2).pdf:408:  Capital dredging within the existing dredged approach channel.

IBPB8270R001F01_EIA REPORT(2).pdf:408:  Capital dredging of deep water berthing areas alongside the proposed quay

IBPB8270R001F01_EIA REPORT(2).pdf:408: face (dredged to 16m bCD).

IBPB8270R001F01_EIA REPORT(2).pdf:408:  Pumping suitable dredged material ashore for use in the reclamation works

IBPB8270R001F01_EIA REPORT(2).pdf:408:  Disposal of the balance of the capital dredged material at existing offshore

IBPB8270R001F01_EIA REPORT(2).pdf:408: container terminal. Although currently dredged to 10.4m bCD, some further

IBPB8270R001F01_EIA REPORT(2).pdf:408: highly localised dredging will be required close to the corner with Tees Dock.

IBPB8270R001F01_EIA REPORT(2).pdf:409:Table 1. Proposed dredge depths and quantities per dredge area

IBPB8270R001F01_EIA REPORT(2).pdf:409:Dredge Area Existing depth (mBCD) Proposed depth Dredge depth Proposed dredge

IBPB8270R001F01_EIA REPORT(2).pdf:410: Dredged Material, samples should be taken to provide a good representation of the

IBPB8270R001F01_EIA REPORT(2).pdf:410: volume of material to be dredged. The distribution and depth of sampling should reflect

IBPB8270R001F01_EIA REPORT(2).pdf:410: the size and depth of the area to be dredged, the amount to be dredged and the

IBPB8270R001F01_EIA REPORT(2).pdf:410:In consideration of the volume details of the proposed dredge, the MMO advises that 37

IBPB8270R001F01_EIA REPORT(2).pdf:410: dredge area to provide adequate spatial coverage (see Table 2). This is in line with the

IBPB8270R001F01_EIA REPORT(2).pdf:410: for dredges between 500,000 and 2,000,000m3, and 10 additional stations for each

IBPB8270R001F01_EIA REPORT(2).pdf:410: close to dredge area C in this project, it has been determined that a reduced sampling

IBPB8270R001F01_EIA REPORT(2).pdf:410:Table 2. Recommended sample stations for each dredge area (*Provided

IBPB8270R001F01_EIA REPORT(2).pdf:410:dredging does not exceed 1 metre below the sediment surface)

IBPB8270R001F01_EIA REPORT(2).pdf:410: Dredge Area Proposed Recommended Depth samples Total number of

IBPB8270R001F01_EIA REPORT(2).pdf:410: dredge quantity sample stations (required for samples

IBPB8270R001F01_EIA REPORT(2).pdf:410: *no dredge volume has been provided so a nominal 5 samples have been suggested.

IBPB8270R001F01_EIA REPORT(2).pdf:410: no dredge depth provided. Where dredging is greater than 1 m, core samples at 1 m intervals are IBPB8270R001F01_EIA REPORT(2).pdf:411: proposed dredging a full suite of contaminants is a prudent and proportionate IBPB8270R001F01_EIA REPORT(2).pdf:412:Where long term licences for maintenance dredging will be applied for, additional sampling IBPB8270R001F01_EIA REPORT(2).pdf:413:A1 – A4 Dredge Area A (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒ IBPB8270R001F01_EIA REPORT(2).pdf:413:B1 – B6 Dredge Area B (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒ IBPB8270R001F01_EIA REPORT(2).pdf:413:C1 – C12 Dredge Area C (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒ IBPB8270R001F01_EIA REPORT(2).pdf:413:D1 – D3 Dredge Area D (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒ IBPB8270R001F01_EIA REPORT(2).pdf:413:E1 – E5 Dredge Area E (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒ IBPB8270R001F01_EIA REPORT(2).pdf:413:F1 Dredge Area F (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒ IBPB8270R001F01_EIA REPORT(2).pdf:413:G1 – G6 Dredge Area G (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒ IBPB8270R001F01_EIA REPORT(2).pdf:413:Stations should be evenly distributed across the dredge areas, depth samples are no longer IBPB8270R001F01_EIA REPORT(2).pdf:413:Dredge Area A – 4 stations at 0m IBPB8270R001F01_EIA REPORT(2).pdf:413:Dredge Area B – 6 stations at 0m IBPB8270R001F01_EIA REPORT(2).pdf:413:Dredge Area C – 12 stations at 0m IBPB8270R001F01_EIA REPORT(2).pdf:413:Dredge Area D – 3 stations at 0m IBPB8270R001F01_EIA REPORT(2).pdf:413:Dredge Area E – 5 stations at 0m IBPB8270R001F01_EIA REPORT(2).pdf:413:Dredge Area F – 1 Station at 0m IBPB8270R001F01_EIA REPORT(2).pdf:413:Dredge Area G – 6 stations at 0m IBPB8270R001F01_EIA REPORT(2).pdf:416: LSN Sample No. Location Dredge Area no. Excluded TS% AS CD CR CU HG NI PB ZN DBT TBT IBPB8270R001F01_EIA REPORT(2).pdf:416: LSN Sample No. Location Dredge Area no. Excluded TS (%) 23BA ACENAPH ACENAPT ANTHRAC BAA BAP BBF BENZGHI BEP BKF C1N C1PHEN IBPB8270R001F01_EIA REPORT(2).pdf:417: marine environment prior to issuing a Marine Licence. This may include characterisation of dredge IBPB8270R001F01_EIA REPORT(2).pdf:417: of the existing 10-year maintenance dredge disposal licence (L/2015/00427/1). Sampling advice IBPB8270R001F01_EIA REPORT(2).pdf:417: dredge areas according to their proposed volumes. IBPB8270R001F01_EIA REPORT(2).pdf:417: ten samples outside of the NGCT dredge area were deemed to be necessary to support mid-licence IBPB8270R001F01_EIA REPORT(2).pdf:417: analysis throughout the NGT dredge areas. IBPB8270R001F01_EIA REPORT(2).pdf:418: Area Surface depth Depth of refusal Core depth Dredge depth m BCD* IBPB8270R001F01_EIA REPORT(2).pdf:418: maintenance area upstream) to show that PBDE analysis is not necessary within the NGCT dredge IBPB8270R001F01_EIA REPORT(2).pdf:418: area. They argue that the samples taken are sufficiently representative of the NGCT dredge area IBPB8270R001F01_EIA REPORT(2).pdf:418: analysis of the proposed dredge area, it is my opinion that this has not been adequately justified, IBPB8270R001F01_EIA REPORT(2).pdf:419:A1 – A4 Dredge Area A (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒ IBPB8270R001F01_EIA REPORT(2).pdf:419:B1 – B6 Dredge Area B (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒ IBPB8270R001F01_EIA REPORT(2).pdf:419:C1 – C12 Dredge Area C (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒ IBPB8270R001F01_EIA REPORT(2).pdf:419:D1 – D3 Dredge Area D (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒ IBPB8270R001F01_EIA REPORT(2).pdf:419:E1 – E5 Dredge Area E (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒ IBPB8270R001F01_EIA REPORT(2).pdf:419:F1 Dredge Area F (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒ IBPB8270R001F01_EIA REPORT(2).pdf:419:G1 – G6 Dredge Area G (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒ IBPB8270R001F01_EIA REPORT(2).pdf:419: Stations should be evenly distributed across the dredge areas, depth samples are no longer required IBPB8270R001F01_EIA REPORT(2).pdf:419: Dredge Area A – 4 stations at 0m IBPB8270R001F01_EIA REPORT(2).pdf:419: Dredge Area B – 6 stations at 0m IBPB8270R001F01_EIA REPORT(2).pdf:419: Dredge Area C – 12 stations at 0m IBPB8270R001F01_EIA REPORT(2).pdf:419: Dredge Area D – 3 stations at 0m IBPB8270R001F01_EIA REPORT(2).pdf:419: Dredge Area E – 5 stations at 0m IBPB8270R001F01_EIA REPORT(2).pdf:419: Dredge Area F – 1 Station at 0m IBPB8270R001F01_EIA REPORT(2).pdf:419: Dredge Area G – 6 stations at 0m IBPB8270R001F01_EIA REPORT(2).pdf:421:could not be sampled due to recent dredging activity over one site and restricted tidal accessibility to IBPB8270R001F01_EIA REPORT(2).pdf:421:potentially be subject to deposition of sediment that will be disturbed during the capital dredging IBPB8270R001F01_EIA REPORT(2).pdf:422:from within the proposed dredge envelope IBPB8270R001F01_EIA REPORT(2).pdf:424:area to be dredged as part of the QEII Berth project. Two vibrocores (VC004 and VC001B) sampled IBPB8270R001F01_EIA REPORT(2).pdf:424:marine licence states that the unconsolidated deposits need to be dredged using an enclosed grab, IBPB8270R001F01_EIA REPORT(2).pdf:424:data was originally submitted to Cefas in support of a maintenance dredge disposal licence held by IBPB8270R001F01_EIA REPORT(2).pdf:424:capital dredging within Tees Dock had previously been dredged to bedrock (i.e. Mercia mudstone). IBPB8270R001F01_EIA REPORT(2).pdf:424:maintenance dredge disposal licences in place at the time. IBPB8270R001F01_EIA REPORT(2).pdf:424:The MMO granted a marine licence for the works in 2013, which permitted the disposal of all dredged IBPB8270R001F01_EIA REPORT(2).pdf:425: would also be subject to dredging from the IBPB8270R001F01_EIA REPORT(2).pdf:425: 6 4.18 0, 1, 2, 3, 4.18 NGCT dredge footprint) IBPB8270R001F01_EIA REPORT(2).pdf:425:(which will be subject to dredging for the NGCT). All other samples recovered were from vibrocores IBPB8270R001F01_EIA REPORT(2).pdf:425:located in areas outside of the NGCT dredge footprint. IBPB8270R001F01_EIA REPORT(2).pdf:434:activity (e.g. dredging, structures within the estuary), the habitat itself cannot be considered man-made. IBPB8270R001F01_EIA REPORT(2).pdf:437:recharging the intertidal area with silt arising from maintenance dredging to create an area of enhanced, IBPB8270R001F01_EIA REPORT(2).pdf:437:maintenance dredged material. This habitat is assigned to the ‘high’ distinctiveness category. While this IBPB8270R001F01_EIA REPORT(2).pdf:438: Proposed dredge footprint IBPB8270R001F01_EIA REPORT(2).pdf:440:pressure is to develop a 'beneficial use' of maintenance dredgings programme to retain fine sediments within IBPB8270R001F01_EIA REPORT(2).pdf:457:Table 5. Summary of macrobenthic abundance and diversity of sediments sampled during the year 2 in-dredge monitoring IBPB8270R001F01_EIA REPORT(2).pdf:460: - Capital dredging within the existing dredged approach channel. IBPB8270R001F01_EIA REPORT(2).pdf:460: - Capital dredging of deep-water berthing areas alongside the proposed quay face (dredged to 16 m IBPB8270R001F01_EIA REPORT(2).pdf:460: - Pumping suitable dredged material ashore for use in the reclamation works and for locally raising land IBPB8270R001F01_EIA REPORT(2).pdf:460: - Disposal of the balance of the capital dredged material at existing offshore disposal grounds in Tees IBPB8270R001F01_EIA REPORT(2).pdf:460: some highly localised dredging close to the corner with Tees Dock. IBPB8270R001F01_EIA REPORT(2).pdf:460:for maintenance dredging within the Tees Estuary, sediment samples were collected and analysed from two IBPB8270R001F01_EIA REPORT(2).pdf:460:offshore dredge disposal areas. IBPB8270R001F01_EIA REPORT(2).pdf:460: - Collect grab samples within the Tees Estuary and within two Tees Bay offshore dredge disposal sites to IBPB8270R001F01_EIA REPORT(2).pdf:460: is proposed to be dredged within the approach channel, and at the QEII berth to establish the baseline IBPB8270R001F01_EIA REPORT(2).pdf:461:maintenance dredging programmes. At near-shore and un-dredged locations, the opportunistic Ophryotrocha sp. IBPB8270R001F01_EIA REPORT(2).pdf:461:stations within the proposed dredge footprint for QEII. The two QEII Berth sample stations comprised of fine IBPB8270R001F01_EIA REPORT(2).pdf:467:the Recommended Operating Guidelines (ROG) for MESH trawls and dredges (Curtis & Coggan 2007). Tows IBPB8270R001F01_EIA REPORT(2).pdf:467:further detailed in the ROG for MESH trawls and dredges (Curtis & Coggan 2007). IBPB8270R001F01_EIA REPORT(2).pdf:484:Faunal Group B occurred at the eight stations associated with offshore dredge disposal site C. This group was IBPB8270R001F01_EIA REPORT(2).pdf:484:Faunal Group C occurred at seven of the eight stations associated with offshore dredge disposal site A (TBA-04 IBPB8270R001F01_EIA REPORT(2).pdf:497:Curtis M, Coggan R (2007) Recommended operating guidelines (ROG) for MESH trawls and dredges. :24 IBPB8270R001F01_EIA REPORT(2).pdf:506: 3.3 Modelling of dredging noise ……………………………………………………………………………….. 14 IBPB8270R001F01_EIA REPORT(2).pdf:508:impact piling and dredging activities. IBPB8270R001F01_EIA REPORT(2).pdf:508:required to be dredged along with the locations of the other aspects of the facility. IBPB8270R001F01_EIA REPORT(2).pdf:510:from impact piling and dredging operations. This modelling was carried out using IBPB8270R001F01_EIA REPORT(2).pdf:510:software package to provide a comparison to INSPIRE and also to model dredging activities. IBPB8270R001F01_EIA REPORT(2).pdf:511:RAMSGeo has been used to model underwater noise from dredging. RAMSGeo has also been IBPB8270R001F01_EIA REPORT(2).pdf:513:Figure 2-2 Power Spectral Density from measurement taken of backhoe dredging and IBPB8270R001F01_EIA REPORT(2).pdf:513: suction dredging in Broadhaven Bay, Ireland IBPB8270R001F01_EIA REPORT(2).pdf:514:2.5.1 Suction dredging IBPB8270R001F01_EIA REPORT(2).pdf:514:Cutter suction dredging (CSD) involves the use of a rotating cutter head to loosen rock and IBPB8270R001F01_EIA REPORT(2).pdf:514:suction hopper dredging (TSHD) involves a suction pipe with a drag head that is dragged over IBPB8270R001F01_EIA REPORT(2).pdf:514:the seabed whilst dredging. IBPB8270R001F01_EIA REPORT(2).pdf:514:sand and silt. Figure 2-4 shows a typical time history of dredging noise. The first 40 seconds of IBPB8270R001F01_EIA REPORT(2).pdf:514:After this point the noise levels increase. It is thought that the dredger may have reached a IBPB8270R001F01_EIA REPORT(2).pdf:514:from a suction dredger, which arise from different aspects of the dredger's operation. IBPB8270R001F01_EIA REPORT(2).pdf:514:Figure 2-4 Pressure time history from suction dredging activity IBPB8270R001F01_EIA REPORT(2).pdf:514:with CSDs, despite the operation of a cutterhead. As the sediment to be dredged in the River IBPB8270R001F01_EIA REPORT(2).pdf:515: from suction dredging. IBPB8270R001F01_EIA REPORT(2).pdf:515:Dredger Specification Date and Sediment Source Transmission Author IBPB8270R001F01_EIA REPORT(2).pdf:515: 2.5.2 Backhoe dredging IBPB8270R001F01_EIA REPORT(2).pdf:515: backhoe dredger. The time history indicates considerable variation in underwater pressure levels IBPB8270R001F01_EIA REPORT(2).pdf:515: and illustrates the levels of noise during each part of the dredging process. IBPB8270R001F01_EIA REPORT(2).pdf:515: Figure 2-5 Pressure time history from backhoe dredging activity IBPB8270R001F01_EIA REPORT(2).pdf:515: Table 2-5 shows two reported underwater noise measurements of backhoe dredgers. Nedwell et IBPB8270R001F01_EIA REPORT(2).pdf:515: that occur during a backhoe dredger operation which characterise sounds produced by the New IBPB8270R001F01_EIA REPORT(2).pdf:515: York dredger whilst removing fractured limestone. Four of the events were linked to a single IBPB8270R001F01_EIA REPORT(2).pdf:515: of the dredge plant and with barge anchoring. SPL for the individual source levels of each event IBPB8270R001F01_EIA REPORT(2).pdf:516:Table 2-4 Summary of reported underwater noise surveys of Backhoe Dredgers IBPB8270R001F01_EIA REPORT(2).pdf:516:Dredger Specification Date and Sediment Source Transmission Author IBPB8270R001F01_EIA REPORT(2).pdf:516:similar to those presented in the previous section for dredging. One important point to highlight is IBPB8270R001F01_EIA REPORT(2).pdf:516:the transitory nature of underwater noise from passing vessels whereas a dredger will operate in IBPB8270R001F01_EIA REPORT(2).pdf:517:levels for the proposed impact piling operation and dredging activities. The modelling results IBPB8270R001F01_EIA REPORT(2).pdf:521:3.3 Modelling of dredging noise IBPB8270R001F01_EIA REPORT(2).pdf:521:RMS SPL from two different dredging operations; backhoe dredging and suction dredging. As IBPB8270R001F01_EIA REPORT(2).pdf:521:dredging extend to a greater range compared to the predicted ranges for a backhoe dredger. IBPB8270R001F01_EIA REPORT(2).pdf:521: in 10 dB increments for dredging activities (ranges based on three transects) IBPB8270R001F01_EIA REPORT(2).pdf:521: Backhoe Dredging Suction Dredging IBPB8270R001F01_EIA REPORT(2).pdf:522:from a backhoe dredger and a suction dredger, as level versus range plots. These figures show IBPB8270R001F01_EIA REPORT(2).pdf:522: noise across three transects from a backhoe dredger using the RAMSGeo IBPB8270R001F01_EIA REPORT(2).pdf:522: noise across three transects from a suction dredger using the RAMSGeo IBPB8270R001F01_EIA REPORT(2).pdf:526:such as dredging. IBPB8270R001F01_EIA REPORT(2).pdf:527:In order to assess the environmental effects that impact piling and dredging activities are likely to IBPB8270R001F01_EIA REPORT(2).pdf:532:impact piling and dredging related noise. IBPB8270R001F01_EIA REPORT(2).pdf:533:The source levels for the noise from dredging operations, using a backhoe dredger was IBPB8270R001F01_EIA REPORT(2).pdf:533:estimated to be 165 dB re 1 µPa @ 1 m (SPLRMS) and for a suction dredger was estimated to be IBPB8270R001F01_EIA REPORT(2).pdf:533:The modelled dBht(Species) sound propagation for backhoe and suction dredging are not IBPB8270R001F01_EIA REPORT(2).pdf:542:6.3.3 Behavioural response: backhoe and suction dredging noise IBPB8270R001F01_EIA REPORT(2).pdf:542:behavioural response for the species of interest from dredging activities using a backhoe dredger IBPB8270R001F01_EIA REPORT(2).pdf:542:and a suction dredger. Maximum, minimum and mean ranges are presented for both dredging IBPB8270R001F01_EIA REPORT(2).pdf:542:types. The impact ranges for backhoe dredging are all seen to be 10m or less. The impact IBPB8270R001F01_EIA REPORT(2).pdf:542:ranges for suction dredging are similar for all species except herring. The maximum 75 dBht IBPB8270R001F01_EIA REPORT(2).pdf:542:Figure 6-13 and Figure 6-14 show the perceived dredging noise level versus ranges for each IBPB8270R001F01_EIA REPORT(2).pdf:542: backhoe and suction dredging operations IBPB8270R001F01_EIA REPORT(2).pdf:542: Backhoe Dredging Suction Dredging IBPB8270R001F01_EIA REPORT(2).pdf:542: backhoe dredging along the three modelled transects IBPB8270R001F01_EIA REPORT(2).pdf:543: suction dredging along the three modelled transects IBPB8270R001F01_EIA REPORT(2).pdf:544:activities that have been assessed include impact piling, suction dredging and backhoe dredging. IBPB8270R001F01_EIA REPORT(2).pdf:544:caused. Modelling of underwater noise from dredging operations shows that noise levels are not IBPB8270R001F01_EIA REPORT(2).pdf:544:backhoe and suction dredging are not estimated to reach the level at which a traumatic hearing IBPB8270R001F01_EIA REPORT(2).pdf:544:The 90 and 75 dBht impact ranges for backhoe dredging are all seen to be 10m or less. The IBPB8270R001F01_EIA REPORT(2).pdf:544:impact ranges for suction dredging are similar for all species except herring. The maximum IBPB8270R001F01_EIA REPORT(2).pdf:546:Halcrow, (1991). Tees estuary Dredging Review. Report for Tees and Hartlepool Port Authority. IBPB8270R001F01_EIA REPORT(2).pdf:546:dredgers JFJ De Nul and Crisoforo Colombo. Subacoustech Report No. 602R0206. IBPB8270R001F01_EIA REPORT(2).pdf:547:underwater noise during dredging and pipe-laying operations in Broadhaven Bay, Co. Mayo, IBPB8270R001F01_EIA REPORT(2).pdf:547:by a Hydraulic Cutterhead Dredge Fracturing Limestone Rock. ERDC TN-DOER-E34. IBPB8270R001F01_EIA REPORT(2).pdf:557:Dredging IBPB8270R001F01_EIA REPORT(2).pdf:592:The assessment by AOC did identify that the channel dredging, deep water berth and construction of the IBPB8270R001F01_EIA REPORT(2).pdf:592:impact, however, was considered low due to the levels of historic dredging that has taken place within the IBPB8270R001F01_EIA REPORT(2).pdf:593:dredging of the approach channel will be undertaken to provide the required access to the proposed IBPB8270R001F01_EIA REPORT(2).pdf:593:Details of the boundaries of capital dredging for the approach channel and the locations of the disposal IBPB8270R001F01_EIA REPORT(2).pdf:594: Capital dredging within the existing dredged approach channel to deepen the channel by 0.4m from IBPB8270R001F01_EIA REPORT(2).pdf:594: Pumping suitable dredged material ashore for use in the reclamation works and for locally raising land IBPB8270R001F01_EIA REPORT(2).pdf:594: Disposal of the balance of the capital dredged material at existing offshore disposal grounds in Tees IBPB8270R001F01_EIA REPORT(2).pdf:594: Capital dredging of deep water berthing areas alongside the proposed quay face (dredged to 16m IBPB8270R001F01_EIA REPORT(2).pdf:594:With respect to the disposal of dredged material, it is proposed to dispose of the majority of the dredged IBPB8270R001F01_EIA REPORT(2).pdf:595:At present, maintenance dredging of the navigation channel and various berthing areas is required IBPB8270R001F01_EIA REPORT(2).pdf:595:existing maintenance dredging strategy will need significant adjustment. It is proposed that maintenance IBPB8270R001F01_EIA REPORT(2).pdf:595:dredgings will be disposed of at the existing disposal sites in Tees Bay, as currently occurs. IBPB8270R001F01_EIA REPORT(2).pdf:595:The construction of the deep water berth and quay wall and capital dredging, however, were considered IBPB8270R001F01_EIA REPORT(2).pdf:596:zone of the River Tees. Similarly, the proposed dredging works will in part impact upon previously IBPB8270R001F01_EIA REPORT(2).pdf:596:given that capital dredging will primarily take place within an existing dredged channel. IBPB8270R001F01_EIA REPORT(2).pdf:600:The construction of the deep water berth and quay wall and capital dredging may impact as yet IBPB8270R001F01_EIA REPORT(2).pdf:600:out in advance of capital dredging within the approach channel or the deep water berth area, or in IBPB8270R001F01_EIA REPORT(2).pdf:602:undertaken in advance of construction and dredging for NGCT, all collected cores and samples will be IBPB8270R001F01_EIA REPORT(2).pdf:604:low given that capital dredging will primarily take place within an existing dredged channel. IBPB8270R001F01_EIA REPORT(2).pdf:604:It is envisaged that geophysical survey may be required for NGCT in order to inform the dredging IBPB8270R001F01_EIA REPORT(2).pdf:604:be present within the footprint of proposed dredging activity. IBPB8270R001F01_EIA REPORT(2).pdf:606:and PD Teesport prior to dredging and construction works commencing. IBPB8270R001F01_EIA REPORT(2).pdf:606:Any archaeological discoveries that come to light during the course of the NGCT dredging and IBPB8270R001F01_EIA REPORT(2).pdf:615:Description: Found in Tees by Mr Watkinson whilst Dredging. Stone ware flagon. Cracked. There is a hole IBPB8270R001F01_EIA REPORT(2).pdf:615:in the side where it was hit by the bucket of the dredger. IBPB8270R001F01_EIA REPORT(2).pdf:615:Description: A Neolithic stone axe head was found in 1892. It was dredged from the River Tees about a IBPB8270R001F01_EIA REPORT(2).pdf:616:discoveries of archaeological interest from dredging within MAI licence areas. Between 2005 and 2014, IBPB8270R001F01_EIA REPORT(2).pdf:616:330 separate reports have been filed addressing over 1000 finds. The MAI protocol for marine dredging IBPB8270R001F01_EIA REPORT(2).pdf:616:reflects discoveries under similar conditions to the capital dredging for NGCT and the methodology is thus IBPB8270R001F01_EIA REPORT(2).pdf:617: Capital dredging within the existing dredged approach channel; to deepen the channel by 0.4m from IBPB8270R001F01_EIA REPORT(2).pdf:617: Pumping suitable dredged material ashore for use in the reclamation works and for locally raising land IBPB8270R001F01_EIA REPORT(2).pdf:617: Capital dredging of deep water berthing areas alongside the proposed quay face (dredged to 16m IBPB8270R001F01_EIA REPORT(2).pdf:617: Capital dredging: IBPB8270R001F01_EIA REPORT(2).pdf:617:  Obstructions encountered by the draghead or dredge bucket on the seafloor; and IBPB8270R001F01_EIA REPORT(2).pdf:617:  Archaeological material observed within dredged material or trapped in the dredge gear. IBPB8270R001F01_EIA REPORT(2).pdf:617: Use of dredged material: IBPB8270R001F01_EIA REPORT(2).pdf:619:intrusive works (dredging or piling) will need to cease in the vicinity of this position and the position of the IBPB8270R001F01_EIA REPORT(2).pdf:619:be the position of the find itself, if known, or the position of the dredger at the time of the discovery. The IBPB8270R001F01_EIA REPORT(2).pdf:629: • Capital dredging of the approach channel to the NGCT (equating to approximately 4.8 million m3 IBPB8270R001F01_EIA REPORT(2).pdf:629: • Disposal of dredged material (through a combination of beneficial reuse (localised reclamation IBPB8270R001F01_EIA REPORT(2).pdf:629: and raising land levels within the proposed terminal site) and offshore disposal of dredged IBPB8270R001F01_EIA REPORT(2).pdf:629: • Capital dredging. IBPB8270R001F01_EIA REPORT(2).pdf:629: dredged material within the reclamation area. IBPB8270R001F01_EIA REPORT(2).pdf:629:As reported in the EIA Report, it is not expected that the existing maintenance dredging strategy will need IBPB8270R001F01_EIA REPORT(2).pdf:629:maintenance dredging has not been considered further within this WFD compliance assessment. IBPB8270R001F01_EIA REPORT(2).pdf:632: Yes - the dredging plume No - control IBPB8270R001F01_EIA REPORT(2).pdf:632: Yes – the deepened channel Yes – the proposed dredging could impact on lower sensitive Yes – the dredging plume IBPB8270R001F01_EIA REPORT(2).pdf:632:Capital dredging could impact on habitats and the plume could potentially impact on higher could impact on migratory No IBPB8270R001F01_EIA REPORT(2).pdf:632: regarding the possible beneficial use of maintenance dredged IBPB8270R001F01_EIA REPORT(2).pdf:632: Maintenance dredged material, supplied by PDT, would then IBPB8270R001F01_EIA REPORT(2).pdf:632: has agreed to supply up to 6,000m3 of maintenance dredged IBPB8270R001F01_EIA REPORT(2).pdf:632: use of dredged material, the proposals represent habitat IBPB8270R001F01_EIA REPORT(2).pdf:633: No - the area of capital dredging within this water body is Yes – IBPB8270R001F01_EIA REPORT(2).pdf:633:Capital dredging relatively small compared to the size of the water body as a (bathing IBPB8270R001F01_EIA REPORT(2).pdf:633:Capital dredging No - dredging will not impact on the WFD groundwater body No - dredging will not impact on the WFD groundwater body IBPB8270R001F01_EIA REPORT(2).pdf:634: • Hydromorphological impacts: Capital dredging and the construction/presence of a new quay (all IBPB8270R001F01_EIA REPORT(2).pdf:634: • Biological habitats: Capital dredging (removal of habitat/sedimentation). IBPB8270R001F01_EIA REPORT(2).pdf:634: • Fish: Capital dredging (sediment plume). IBPB8270R001F01_EIA REPORT(2).pdf:634: • Water quality: Capital dredging (sediment plume). IBPB8270R001F01_EIA REPORT(2).pdf:634: • Protected areas (one designated bathing water only): Capital dredging. IBPB8270R001F01_EIA REPORT(2).pdf:634:2.4.1 Hydromorphological effects: Capital dredging and presence of new quay wall IBPB8270R001F01_EIA REPORT(2).pdf:635:swell height of 6m will be reflected on the side of the dredged channel and reach the area around the IBPB8270R001F01_EIA REPORT(2).pdf:635:maintenance dredging that existed at that location at the time of the modelling assessment. As a result, a IBPB8270R001F01_EIA REPORT(2).pdf:635:The main potential for effect on intertidal areas is predicted at Seal Sands. During the dredging, about 3% IBPB8270R001F01_EIA REPORT(2).pdf:635:of the material dredged in the outer channel is predicted to deposit on Seal Sands at a depth of 1mm. IBPB8270R001F01_EIA REPORT(2).pdf:635:placement of the dredging barge on the eastern side of the estuary will reduce the potential for material to IBPB8270R001F01_EIA REPORT(2).pdf:635:Based on the above, because there are measures that will be adopted during the capital dredging to IBPB8270R001F01_EIA REPORT(2).pdf:635:2.4.2 Biological habitats: Capital dredging IBPB8270R001F01_EIA REPORT(2).pdf:635:There would be a direct loss of invertebrate resource due to the capital dredging over an area of IBPB8270R001F01_EIA REPORT(2).pdf:635:therefore, already subject to maintenance dredging. The area of seabed that will be dredged that is IBPB8270R001F01_EIA REPORT(2).pdf:636:2019) confirms that the following completion of the capital dredge, the benthic community would be IBPB8270R001F01_EIA REPORT(2).pdf:636:expected to recover to one that is similar to that present throughout the existing dredged approach IBPB8270R001F01_EIA REPORT(2).pdf:636:channel across the majority of the proposed dredge footprint. IBPB8270R001F01_EIA REPORT(2).pdf:636:The deposition of fine sediment resuspended by the dredging process is not anticipated to impact on the IBPB8270R001F01_EIA REPORT(2).pdf:636:2.4.3 Fish: Capital dredging IBPB8270R001F01_EIA REPORT(2).pdf:636:column during capital dredging and during the return of water to the estuary from the reclamation process. IBPB8270R001F01_EIA REPORT(2).pdf:636:of sediment plumes during dredging was modelled. The largest rise in peak suspended sediment IBPB8270R001F01_EIA REPORT(2).pdf:636:concentrations above background concentrations occurred within the immediate vicinity of the dredger (up IBPB8270R001F01_EIA REPORT(2).pdf:636:It is predicted that the increase in suspended solid concentrations arising during capital dredging would be IBPB8270R001F01_EIA REPORT(2).pdf:636:outside the range of natural variation, particularly in the immediate vicinity of the dredger. The modelling IBPB8270R001F01_EIA REPORT(2).pdf:636:are however significantly affected by the location of the dredger. When located in the Tees Dock turning IBPB8270R001F01_EIA REPORT(2).pdf:636:outside of the immediate vicinity of the dredger. This occurs both laterally and within the streamlining of IBPB8270R001F01_EIA REPORT(2).pdf:636:the vessel. This significant decrease in suspended solids also occurs when the dredger is located in the IBPB8270R001F01_EIA REPORT(2).pdf:637: • Undertaking dredging operations using a trailing suction hopper dredger in long strips along the IBPB8270R001F01_EIA REPORT(2).pdf:637: axis of the estuary rather than dredging along the width of the river. This will reduce both the IBPB8270R001F01_EIA REPORT(2).pdf:637: • Locating the cutter suction dredger on either the western or eastern side of the estuary. IBPB8270R001F01_EIA REPORT(2).pdf:637:2.4.4 Water Quality: capital dredging IBPB8270R001F01_EIA REPORT(2).pdf:637:The predicted plume as a result of capital dredging could impact on water quality. However, most of the IBPB8270R001F01_EIA REPORT(2).pdf:637:sediment is anticipated to fall out of suspension within the immediate vicinity of the dredger, particularly in IBPB8270R001F01_EIA REPORT(2).pdf:637:the lower channel where the dredged material is predominantly sand. Although the dredging will give rise IBPB8270R001F01_EIA REPORT(2).pdf:637:periods of dredging (which will not be continuous since the dredger will need to periodically dispose of IBPB8270R001F01_EIA REPORT(2).pdf:637:given the relatively high percentages of mudstone and sand to be dredged. IBPB8270R001F01_EIA REPORT(2).pdf:637:2.4.5 Capital dredging: Protected areas (bathing waters only) IBPB8270R001F01_EIA REPORT(2).pdf:637:The proposed capital dredging has the potential to disturb sediment and release sediment-bound bacteria IBPB8270R001F01_EIA REPORT(2).pdf:637:requested by the MMO). Additionally, the distance between the bathing waters and the dredge footprint IBPB8270R001F01_EIA REPORT(2).pdf:647:Completed scoping tables for activity: dredging IBPB8270R001F01_EIA REPORT(2).pdf:647:dredging (tables taken from Clearing the Waters for All; Environment Agency, 2016) and modified to assess the potential effects for the groundwater IBPB8270R001F01_EIA REPORT(2).pdf:647:body. Note that for dredging, there is no pathway for effect on the groundwater so only the surface water is considered here. IBPB8270R001F01_EIA REPORT(2).pdf:647: Name of activity Capital dredging IBPB8270R001F01_EIA REPORT(2).pdf:647: Brief description of activity Capital dredging within the existing dredged approach channel to deepen the channel by 0.4m from 14.1m IBPB8270R001F01_EIA REPORT(2).pdf:647: Dock turning circle and Seaton Channel turning circle) in the Tees estuary. Capital dredging of deep water IBPB8270R001F01_EIA REPORT(2).pdf:647: berthing areas alongside the proposed quay face (dredged to 16m below CD). IBPB8270R001F01_EIA REPORT(2).pdf:647: For different parts of the dredging it will be necessary to use a trailing suction hopper dredger, cutter IBPB8270R001F01_EIA REPORT(2).pdf:647: suction dredger or backhoe. IBPB8270R001F01_EIA REPORT(2).pdf:647: 116.5ha) comprises the existing navigation channel and is therefore, already dredged. IBPB8270R001F01_EIA REPORT(2).pdf:647: Timings of activity (including start and finish dates) Due to the differences in the material to be dredged, it is likely that dredging in the lower reaches and IBPB8270R001F01_EIA REPORT(2).pdf:647: dredging in the upper reaches will take place using different types of dredger. Consequently, there is the IBPB8270R001F01_EIA REPORT(2).pdf:647: possibility that both dredgers could be operating simultaneously. IBPB8270R001F01_EIA REPORT(2).pdf:647: Dredging the mudstone in the upper reach of the channel using a CSD or backhoe is likely to take IBPB8270R001F01_EIA REPORT(2).pdf:647: approximately 33 weeks. It is anticipated that the timing of the CSD dredging operation will be managed so IBPB8270R001F01_EIA REPORT(2).pdf:648: The time required to dredge 1,100,000 m3 of granular material and clays will be between approximately 4 IBPB8270R001F01_EIA REPORT(2).pdf:648: Dredging activity would be undertaken 24 hours a day. IBPB8270R001F01_EIA REPORT(2).pdf:648:Could significantly impact the ✓ (Tees Capital dredging will deepen the approach Capital dredging will deepen the approach IBPB8270R001F01_EIA REPORT(2).pdf:649:Within 500m of any Information provided on MAGIC indicates that the proposed dredging will occur within 500m of higher sensitivity habitats: IBPB8270R001F01_EIA REPORT(2).pdf:649: Environment Agency guidance suggests dredge area within the water body is multiplied by 1.5 to get an approximate area of impact IBPB8270R001F01_EIA REPORT(2).pdf:650: Is in an estuary and could affect fish ✓ There is a possibility that the dredging would There is a possibility that dredging in the IBPB8270R001F01_EIA REPORT(2).pdf:650: Could affect water clarity, ✓ Yes, dredging will be required for longer than 14 days IBPB8270R001F01_EIA REPORT(2).pdf:651: It disturbs sediment with ✓ Sediment sampling indicates that the sediments to be dredged do not contain levels of IBPB8270R001F01_EIA REPORT(2).pdf:651: area waters only) Report so are not considered further here. The capital dredging will occur within 2km of IBPB8270R001F01_EIA REPORT(2).pdf:652: However the proposed dredging will not give rise to changes in nutrient concentrations IBPB8270R001F01_EIA REPORT(2).pdf:652: Biology: fish Yes The dredging could potentially impact on migratory fish due to the sediment plume being IBPB8270R001F01_EIA REPORT(2).pdf:652: dredging and associated plume will be longer than 14 days. IBPB8270R001F01_EIA REPORT(2).pdf:653: Biology: fish Yes The dredging could potentially impact on migratory fish due to the sediment plume being IBPB8270R001F01_EIA REPORT(2).pdf:653: dredging and associated plume will be longer than 14 days. IBPB8270R001F01_EIA REPORT(2).pdf:659: It disturbs sediment with contaminants ✓ Reclamation will be undertaken using dredged material predominantly made up of granular These activities 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:3: • Capital dredging of the approach channel to the Project as well as creation of 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:3: a new berth pocket (equating to dredging of up to 4.8 million m3 of material). 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:3: • Disposal of dredged material (through a combination of beneficial re-use 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:4:Figure 1a: Works Area No. 1 (small polygon) and dredge area (large polygon). 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:6: 9. To carry out any form of dredging within the UK marine licensing area (whether 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:10: • Impacts of dredging upon Vopak foreshore 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:10:dredging. Modelling included within the EIA indicates that the river basin dredging 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:11:affected by this dredging proposal. Data on benthic invertebrate communities 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:12:It was recognised that due to the size and scale of the proposed dredge, this could 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:13:and reuse of dredged material on land. The material to be re-used within the 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:13:of dredged material (containing high levels of organic matter) were to be stockpiled 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:13:on site for a significant duration of time. However, the dredged material to be used 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:13:of between 1.2% and 8.7% within the proposed dredge footprint. The placement of 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:14: • Undertaking dredging operations using a trailer suction hopper dredger 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:14: (TSHD) in long strips along the axis of the estuary rather than dredging along 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:14: • Locating the cutter suction dredger (CSD) on either the western or eastern 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:15: 24 – Implementation of The Northern Gateway Container Terminal: Dredging 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:16:Sediment and Water Quality) and Section 26 (Offshore Disposal of Dredged 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:16:and maintenance dredging through remobilisation, dispersion and redistribution of 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:16:Cefas were consulted with regard to dredge and disposal activities and that an 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:16:concentrations in the Project dredge area, but there are raised levels at nearby area 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17:Cefas requested additional sampling if the dredging has not started after 2 years 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17:will be required, and approval needed before dredging can commence. 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17:Bay C disposal site, should disposal of capital dredged material arising from the 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17:is highly unlikely that the three major dredging projects would be permitted within the 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17:months in advance of the proposed start date of capital dredging and disposal for 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17:capital dredging and disposal: 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: a) Written confirmation that disposal of dredged material from the NGCT project 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: 1 project (meaning that no single phase of the capital dredging and disposal 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: b) Written confirmation that the total (aggregated) quantity of dredged material to 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: dredging and disposal from NGCT could temporally coincide (meaning that 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: any phase of the capital dredging and disposal for the two projects could 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: that the dredging and disposal programmes for NGCT and the South Bank 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: quantity of dredged material to be disposed could exceed 1.34 million m3 per 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: predicted cumulative environmental impacts of disposal of dredged material. 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17:as a result of the dredge and disposal activity. 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:18: • Disposal of dredged material 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:19: • Disposal of dredged material – Section 5.6 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:20:Dredge and Disposal 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:20: • Condition mandating additional sampling if the dredging has not started after 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:20: capital dredging and disposal for NGCT, in order to mitigate any in- 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:20: combination dredge and disposal impacts. 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:The impact of capital dredging on the existing marine communities is described in 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:Section 9.5 of the ES. Following the completion of the dredging, the marine 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:community within the dredge footprint will recolonise the impacted area. The nature 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:Given that the navigation channel is dredged to geological material, the proposed 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:capital dredging is expected to result in the exposure of a similar sediment type to 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:colonise within the proposed dredge area will be of a similar structure to those which 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:Any recolonisation of the seabed following the capital dredging would be beneficial 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:compared with the immediate post-dredge situation but maintenance dredging would 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:significance on the benthic community following completion of the capital dredge. 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:The impact of maintenance dredging on the existing marine communities is 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:effects on the existing maintenance dredging strategy, and no changes to the 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:present-day maintenance dredging strategy are necessary. As such, there would be 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:no impact on marine communities as a result of the maintenance dredging 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:22: • Direct uptake and disturbance of fish during capital dredging. 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:22: • Impacts caused by increased suspended sediment during capital dredging 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:24:dredging and pilling works so that the likelihood of potential impacts to fish receptors 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:25:sediment would be negligible. The applicant also noted that the effect of the dredging 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:25:dredged approach channel. 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:26:PDT would manage any potential conflicts in the same way as routine dredging and 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:26:activity is during the dredging that will take place close to the mouth of the estuary 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:26:where some sailing is undertaken. However, given the limited duration of dredging in 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:26:this area and particularly the fact that the dredging would take place within an 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:26:Commercial vessels will be confined to navigating within the dredged channel (as at 20220208 Northern Gateway MLA202000079 Notice to Natural England.pdf:2:well as other areas in the vicinity – not affected by this dredging proposal. Data on benthic LON_LIB1-#22563159-v1-Teesside_Gazette_6_May_2020.PDF:2: Terminal, including a capital dredge of the River Tees, Redcar and the 2008 Teesport HRO.pdf:1:7. Power to dredge 2008 Teesport HRO.pdf:4:Power to dredge 2008 Teesport HRO.pdf:4:affording access to the works by vessels from time to time deepen, dredge, scour, cleanse, alter 2008 Teesport HRO.pdf:4:dredged by them. I&BPB8270MM001F0.1.pdf:1: dredging, construction of a new quay wall, reclamation and I&BPB8270MM001F0.1.pdf:1: modifications and the disposal of dredged material. I&BPB8270MM001F0.1.pdf:1: maintenance dredge depth, volume and/or frequency and I&BPB8270MM001F0.1.pdf:1: the maintenance dredging commitment is not foreseen, SR I&BPB8270MM001F0.1.pdf:1: Maintenance Dredging licence then a variation may be I&BPB8270MM001F0.1.pdf:3: year round maintenance dredging activities. SR I&BPB8270MM001F0.1.pdf:4: 5.8 Offshore disposal of dredged material LON_LIB1-#22528705-v1-Teesside_Gazette_29_4_2020.PDF:2: Lots of Photos Interior Alterations! Odd Jobs in home and garden Terminal, including a capital dredge of the River Tees, Redcar and the MLA202000079 - Publicise EIA request.pdf:2:dredge of the river and the development of the terminal. IBPB8270R001F01_EIA REPORT.pdf:6:24.2 Waste minimisation and beneficial use of dredged material 235 IBPB8270R001F01_EIA REPORT.pdf:6:24.3 Beneficial use of dredged material 236 IBPB8270R001F01_EIA REPORT.pdf:6:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL 239 IBPB8270R001F01_EIA REPORT.pdf:8: • Capital dredging of the approach channel to the proposed NGCT as well as creation of a new berth IBPB8270R001F01_EIA REPORT.pdf:8: pocket (equating to dredging of up to 4.8 million m3 of material). Realignment of the existing IBPB8270R001F01_EIA REPORT.pdf:8: • Disposal of dredged material (through a combination of beneficial re-use (localised reclamation and IBPB8270R001F01_EIA REPORT.pdf:12: • Capital dredging of the approach channel to the NGCT as well as creation of a new berth pocket IBPB8270R001F01_EIA REPORT.pdf:12: • Disposal of dredged material. IBPB8270R001F01_EIA REPORT.pdf:12: the potential for reclamation with dredged material and beneficial re-use of dredged material for IBPB8270R001F01_EIA REPORT.pdf:12:3.1.1 Capital dredging of the approach channel IBPB8270R001F01_EIA REPORT.pdf:12:The footprint of the proposed capital dredging is illustrated in Figure 3.1. For the purposes of describing the IBPB8270R001F01_EIA REPORT.pdf:12:proposed changes in depth of the various dredge areas, the dredge footprint has been divided into sections IBPB8270R001F01_EIA REPORT.pdf:12:and the proposed declared depth following the capital dredging. IBPB8270R001F01_EIA REPORT.pdf:12:The total volume of material that will arise from the capital dredging will be up to 4.8 million m3. Based on IBPB8270R001F01_EIA REPORT.pdf:12:previous investigations and capital dredging in the estuary, it is expected that, broadly, three material types IBPB8270R001F01_EIA REPORT.pdf:12:would be dredged; relatively soft alluvial deposits (silt, clay and sand), Mercia mudstone (marl) and boulder IBPB8270R001F01_EIA REPORT.pdf:12:channel and Seaton Channel turning circle have previously been dredged to a greater depth than the IBPB8270R001F01_EIA REPORT.pdf:12:Additionally, there is a backlog of maintenance dredging in these areas with some parts of the channel at IBPB8270R001F01_EIA REPORT.pdf:12:sand) to be dredged is expected to be small relative to the overall volume of the dredge given that the IBPB8270R001F01_EIA REPORT.pdf:12:channel is already subject to maintenance dredging. IBPB8270R001F01_EIA REPORT.pdf:12:The dredging work can be divided into two phases as follows: IBPB8270R001F01_EIA REPORT.pdf:12: Suction Hopper Dredger (TSHD). The material arising from the dredging would be used for IBPB8270R001F01_EIA REPORT.pdf:13: • Phase 2 of the dredging involves the removal of mudstone using a Cutter Suction Dredger (CSD) IBPB8270R001F01_EIA REPORT.pdf:13: and/or Backhoe Dredger (BD) loading into hopper barges. The material arising from this dredging IBPB8270R001F01_EIA REPORT.pdf:13: 1m deep trenches would be dredged on the inside of the edge of the dredged channel in Area E. IBPB8270R001F01_EIA REPORT.pdf:13: The trenches will be dredged 1m deeper than the main channel; therefore, their total depth will be IBPB8270R001F01_EIA REPORT.pdf:13:Due to the high production rates required for the dredging, it is likely that the majority of the dredging would IBPB8270R001F01_EIA REPORT.pdf:13:be undertaken by either a TSHD or CSD. Therefore, the use of these dredgers has been assumed for the IBPB8270R001F01_EIA REPORT.pdf:13:plumes during dredging), particularly as the use of BD typically results in lower environmental impact relative IBPB8270R001F01_EIA REPORT.pdf:13:In addition to the above, there may be a requirement to use a BD for small, confined areas of dredging, for IBPB8270R001F01_EIA REPORT.pdf:13:example, alongside the existing quay wall, to dredge berth pockets or for construction of new quays. IBPB8270R001F01_EIA REPORT.pdf:13:Maintenance dredging in the area of the capital dredge footprint will be kept to an absolute minimum during IBPB8270R001F01_EIA REPORT.pdf:13:the capital dredging period and only essential maintenance works will be carried out. IBPB8270R001F01_EIA REPORT.pdf:13: Area Channel section declared depth declared depth dredge IBPB8270R001F01_EIA REPORT.pdf:13: be dredged (Mm3) IBPB8270R001F01_EIA REPORT.pdf:13: Dredger (CSD) IBPB8270R001F01_EIA REPORT.pdf:13: Dredge (BD) IBPB8270R001F01_EIA REPORT.pdf:13: C Channel lower reach 14.1 14.5 0.85 (silts, clay and sand) Hopper Dredger IBPB8270R001F01_EIA REPORT.pdf:14: Proposed dredge footprint IBPB8270R001F01_EIA REPORT.pdf:14: Proposed dredge footprint IBPB8270R001F01_EIA REPORT.pdf:15:Figure 3.2 Dredge areas for the proposed NGCT IBPB8270R001F01_EIA REPORT.pdf:16:Figure 3.3 Typical section through channel sea reach in Area E of the NGCT dredge footprint IBPB8270R001F01_EIA REPORT.pdf:20:The reclamation, if required, will be carried out using dredged granular materials (sands) and dredged IBPB8270R001F01_EIA REPORT.pdf:20:be used for reclamation above water level. For either solution, dredged granular material and mudstone will IBPB8270R001F01_EIA REPORT.pdf:20:It is anticipated that granular material will be dredged from the lower reaches of the river using a TSHD. IBPB8270R001F01_EIA REPORT.pdf:20:It is anticipated that mudstone will be dredged using a CSD and/or BD from the upper reach of the river IBPB8270R001F01_EIA REPORT.pdf:20:(where dredging is being carried out on the same side of the river as the reclamation) or a sunken pipeline IBPB8270R001F01_EIA REPORT.pdf:20:(where dredging is being carried out on the opposite side of the river to the reclamation) or (if a BD is used) IBPB8270R001F01_EIA REPORT.pdf:20: • Reclamation will be carried out making beneficial use of dredged material. IBPB8270R001F01_EIA REPORT.pdf:20:3.1.3 Disposal of dredged material IBPB8270R001F01_EIA REPORT.pdf:20:dredged material. The preferred option is to use up to approximately 920,000m3 of dredged material (mainly IBPB8270R001F01_EIA REPORT.pdf:20:the terminal site (up to approximately 970,000m3). The remainder of the dredged material (soft alluvial IBPB8270R001F01_EIA REPORT.pdf:21:It is anticipated that all granular material arising from the dredging would be used within the reclamation (if IBPB8270R001F01_EIA REPORT.pdf:21:required). Additional granular material may arise from routine maintenance dredging. A total of IBPB8270R001F01_EIA REPORT.pdf:21:required) and within the terminal area, other practicable beneficial uses of dredged material have been IBPB8270R001F01_EIA REPORT.pdf:21:million m3 of dredged material in Bran Sands lagoon (which would reduce the volume of material required IBPB8270R001F01_EIA REPORT.pdf:21:for offshore disposal). However, as mentioned in Section 1 of this report, the disposal of dredged material IBPB8270R001F01_EIA REPORT.pdf:21:disposal of dredged sediment in Bran Sands lagoon is therefore excluded from the proposed scheme IBPB8270R001F01_EIA REPORT.pdf:28:maintenance dredged material as part of habitat enhancement works being proposed by the TRT within the IBPB8270R001F01_EIA REPORT.pdf:28:at the boundary of the existing intertidal. Maintenance dredged material, supplied by PDT, would then be IBPB8270R001F01_EIA REPORT.pdf:28:PDT has agreed to supply up to 6,000m 3 of maintenance dredged material to the TRT to allow the above IBPB8270R001F01_EIA REPORT.pdf:28:habitat enhancement works to be undertaken. In addition to constituting a beneficial use of dredged IBPB8270R001F01_EIA REPORT.pdf:29: Proposed dredge footprint IBPB8270R001F01_EIA REPORT.pdf:30:Dredging IBPB8270R001F01_EIA REPORT.pdf:30:Due to the differences in the material to be dredged, it is likely that dredging in the lower reaches and IBPB8270R001F01_EIA REPORT.pdf:30:dredging in the upper reaches will take place using different types of dredger. Consequently, there is the IBPB8270R001F01_EIA REPORT.pdf:30:possibility that both dredgers could be operating simultaneously. IBPB8270R001F01_EIA REPORT.pdf:30:construction of the new quay wall, if dredged material is to be placed directly behind the quay, or earlier if IBPB8270R001F01_EIA REPORT.pdf:30:the dredged material is to be placed into settling basins and stockpiled on land prior to placement behind IBPB8270R001F01_EIA REPORT.pdf:30:The TSHD production rate will depend upon the size of the dredger and is likely to be in the range 100,000 IBPB8270R001F01_EIA REPORT.pdf:30:m3 to 225,000 m3 per week. On this basis, the time required to dredge 1,100,000 m3 of granular material IBPB8270R001F01_EIA REPORT.pdf:30:Dredging the mudstone in the upper reach of the channel using a CSD is likely to be at a production rate of IBPB8270R001F01_EIA REPORT.pdf:30:approximately 110,000 m 3 per week. Hence the time required to dredge 3,700,000m3 is predicted to take IBPB8270R001F01_EIA REPORT.pdf:30:approximately 33 weeks. It is anticipated that the timing of the CSD dredging operation will be managed so IBPB8270R001F01_EIA REPORT.pdf:30:Dredging activity would be undertaken 24 hours a day. IBPB8270R001F01_EIA REPORT.pdf:32:3.2.5 Maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:32:There is an existing requirement for maintenance dredging of the approach channel and various berthing IBPB8270R001F01_EIA REPORT.pdf:32:pockets in the lower Tees estuary. The existing maintenance dredging regime is well-established, and the IBPB8270R001F01_EIA REPORT.pdf:32:locations, volumes and frequency of dredging are well recorded. These various aspects of the existing IBPB8270R001F01_EIA REPORT.pdf:32:maintenance dredging are discussed in detail in the Tees Maintenance Dredging Baseline Document (Royal IBPB8270R001F01_EIA REPORT.pdf:32:maintenance dredging strategy (e.g. the annual volume dredged is not predicted to change significantly IBPB8270R001F01_EIA REPORT.pdf:32:that maintenance dredged material would be disposed of at the existing disposal sites in Tees Bay, as IBPB8270R001F01_EIA REPORT.pdf:33: • Approach channel and berthing pocket dredge depth IBPB8270R001F01_EIA REPORT.pdf:33: • Disposal locations for dredged material IBPB8270R001F01_EIA REPORT.pdf:33:There is insufficient space for a development of the proposed scale at this location. Dredging a channel to IBPB8270R001F01_EIA REPORT.pdf:36:dredging requirement associated with deepening the channel at the required depth up to this location. This IBPB8270R001F01_EIA REPORT.pdf:36:location would be greater than for the proposed development given the increased volume of the dredge that IBPB8270R001F01_EIA REPORT.pdf:36:arising from the proposed scheme, and probably greater as it is likely that the dredging requirement would IBPB8270R001F01_EIA REPORT.pdf:36:Approach channel and berthing pocket dredge IBPB8270R001F01_EIA REPORT.pdf:36:The proposed dredged depth of 14.5m below CD in the navigation channel has been chosen to maximise IBPB8270R001F01_EIA REPORT.pdf:36:Dredging plant IBPB8270R001F01_EIA REPORT.pdf:36:There is likely to be a requirement to utilise a number of different types of dredger depending on the nature IBPB8270R001F01_EIA REPORT.pdf:36:of the material being dredged and the placement option for the material. Therefore, for different parts of the IBPB8270R001F01_EIA REPORT.pdf:36:dredging it will be necessary to use a TSHD, CSD or BD. The environmental implications of using these IBPB8270R001F01_EIA REPORT.pdf:36:dredgers have been assessed and no other alternatives exist that could undertake the work. IBPB8270R001F01_EIA REPORT.pdf:36:Disposal of dredged material IBPB8270R001F01_EIA REPORT.pdf:36:A number of scenarios for the disposal of dredged material have been considered, each of which involves IBPB8270R001F01_EIA REPORT.pdf:36:the placement of dredged material at a number of possible disposal (placement) locations. IBPB8270R001F01_EIA REPORT.pdf:37: • Re-use of dredged material for habitat enhancement purposes. IBPB8270R001F01_EIA REPORT.pdf:37:arising from the dredging of the lower channel and Seaton Channel turning circle and would allow the IBPB8270R001F01_EIA REPORT.pdf:37:terminal to be constructed to the required level. This option for the beneficial use of dredged material (i.e. IBPB8270R001F01_EIA REPORT.pdf:37:and, therefore, given that the capital dredging is expected to generate approximately 1 million m 3 of sand, IBPB8270R001F01_EIA REPORT.pdf:37:option selected). A possible source is sandy material arising from routine maintenance dredging undertaken IBPB8270R001F01_EIA REPORT.pdf:37:for the balance of the capital dredged material (up to approximately 3.8 million m 3 given that the total dredge IBPB8270R001F01_EIA REPORT.pdf:37:A further advantage of the disposal of dredged material within the Teesport Estate is its close proximity to IBPB8270R001F01_EIA REPORT.pdf:37:part of the proposed dredge area and, therefore, the dredged material can be piped directly to the site. IBPB8270R001F01_EIA REPORT.pdf:37:No other areas within the Teesport Estate have been considered for the disposal of dredged material, largely IBPB8270R001F01_EIA REPORT.pdf:37:due to the absence of areas of suitable size. Disposal of the dredged material on a constrained area of land IBPB8270R001F01_EIA REPORT.pdf:37:dredged material at this site could represent the beneficial use of dredged material, in that the material IBPB8270R001F01_EIA REPORT.pdf:38:dredged material has been excluded from the scheme and is not considered further in the EIA. IBPB8270R001F01_EIA REPORT.pdf:38:channel dredging (Tees Bay C and Tees Bay A). Both of these sites have historically received capital and IBPB8270R001F01_EIA REPORT.pdf:38:maintenance dredged material. It is proposed that dredged material (arising largely from the dredging of IBPB8270R001F01_EIA REPORT.pdf:38:This EIA Report assesses the potential impacts associated with the disposal of dredged material at the Tees IBPB8270R001F01_EIA REPORT.pdf:38:Re-use of dredged material for habitat enhancement purposes IBPB8270R001F01_EIA REPORT.pdf:38:(possibly doubling as little tern nesting islands) could be created using the dredged material from Hartlepool IBPB8270R001F01_EIA REPORT.pdf:38:suitable locations for the re-use of dredged sediment; three were located adjacent to the South Gare IBPB8270R001F01_EIA REPORT.pdf:38:scheme by beneficially re-using dredged material would be welcomed. IBPB8270R001F01_EIA REPORT.pdf:38:It is considered that such beneficial re-use of dredged material from the NGCT could also represent a IBPB8270R001F01_EIA REPORT.pdf:38:PDT will continue to investigate the option of creating bird islands using dredged material (i.e. not IBPB8270R001F01_EIA REPORT.pdf:38:Partnership. Such creation of bird islands at the mouth of the Tees (or any beneficial use of dredged material IBPB8270R001F01_EIA REPORT.pdf:38:in the marine environment) would require a separate marine licence application to deposit dredged material, IBPB8270R001F01_EIA REPORT.pdf:38:intertidal habitat downstream of Newport Bridge through the placement of dredged material (this area is IBPB8270R001F01_EIA REPORT.pdf:38:included within the marine licence application area). It is proposed that maintenance dredged material is IBPB8270R001F01_EIA REPORT.pdf:38:arising from the capital dredging. While this does not, strictly, represent alternative use of dredged material IBPB8270R001F01_EIA REPORT.pdf:39:predicted impact of NGCT on intertidal habitat and would represent an alternative use for dredged material IBPB8270R001F01_EIA REPORT.pdf:39:arising from maintenance dredging activity in the Tees. IBPB8270R001F01_EIA REPORT.pdf:39:In light of the above, there are a number of possible scenarios for the disposal of capital dredged material. IBPB8270R001F01_EIA REPORT.pdf:39:dredged material would be disposed of through a combination of sea disposal and land raising, without the IBPB8270R001F01_EIA REPORT.pdf:39:need for reclamation using 920,000m 3 of dredged material). IBPB8270R001F01_EIA REPORT.pdf:41: and of affording access to the works by vessels from time to time deepen, dredge, IBPB8270R001F01_EIA REPORT.pdf:41: IX of the Merchant Shipping Act 1995(a)), from time to time dredged by them. IBPB8270R001F01_EIA REPORT.pdf:41:It is therefore concluded that a marine licence from the MMO is not required for the proposed dredging IBPB8270R001F01_EIA REPORT.pdf:41: • Offshore disposal of dredged material. IBPB8270R001F01_EIA REPORT.pdf:41: • Use of dredged material to undertake the proposed reclamation works (i.e. a deposit below MHWS). IBPB8270R001F01_EIA REPORT.pdf:41: • Placement / pumping of maintenance dredged material onto the intertidal area downstream of IBPB8270R001F01_EIA REPORT.pdf:41:The proposed dredge footprint is located within an area which is subject to maintenance dredging by PDT IBPB8270R001F01_EIA REPORT.pdf:41:(under licence L/2015/00427/1). No changes to the maintenance dredge disposal licence held by PDT are IBPB8270R001F01_EIA REPORT.pdf:41:a variation request the maintenance dredge disposal licence submitted to the MMO, if required. IBPB8270R001F01_EIA REPORT.pdf:43:Options for the disposal of waste (i.e. the material to be dredged from the approach channel) have been IBPB8270R001F01_EIA REPORT.pdf:43:Possible alternative options for dredged material have been presented in Section 3.3. IBPB8270R001F01_EIA REPORT.pdf:45: • Policy NE-DD-3 – proposals for the disposal of dredged material must demonstrate that they have IBPB8270R001F01_EIA REPORT.pdf:56: • Maintenance Dredging – the Maintenance Dredging Baseline Document (Royal Haskoning, 2008) IBPB8270R001F01_EIA REPORT.pdf:56: provided information about the maintenance dredging material regularly removed from the Tees IBPB8270R001F01_EIA REPORT.pdf:56: estuary (and the potential implications of maintenance dredging and disposal for European and IBPB8270R001F01_EIA REPORT.pdf:56: Ramsar sites). This report is updated annually through the Tees Maintenance Dredging Annual IBPB8270R001F01_EIA REPORT.pdf:56: Review, the latest version of which relates to maintenance dredging in 2018. IBPB8270R001F01_EIA REPORT.pdf:56: further information about maintenance dredging regimes and materials arising from the IBPB8270R001F01_EIA REPORT.pdf:56: Maintenance Dredging Baseline Document (Royal Haskoning, 2008). The dredge technique that IBPB8270R001F01_EIA REPORT.pdf:56: dredging) differs to those to be used for NGCT (trailing suction hopper dredger and cutter suction) IBPB8270R001F01_EIA REPORT.pdf:57: predictions of possible effects from the proposed dredging operations (required for the Tees Dock IBPB8270R001F01_EIA REPORT.pdf:57:since 2006 is that presented in the Tees Maintenance Dredging Annual Reviews. As a consequence of IBPB8270R001F01_EIA REPORT.pdf:57:is dredged annually as maintenance activities (average from 2001 to 2018). This comprises around IBPB8270R001F01_EIA REPORT.pdf:57:2006 ES was written. The only significant project undertaken has been the dredging and re-strengthening IBPB8270R001F01_EIA REPORT.pdf:58:Other than the above information on maintenance dredging regimes, there are equally no significant new IBPB8270R001F01_EIA REPORT.pdf:58:PDT will continue to undertake maintenance dredging of the river to maintain the advertised dredge depths, IBPB8270R001F01_EIA REPORT.pdf:59: from capital dredging IBPB8270R001F01_EIA REPORT.pdf:59:The capital dredging will involve dredging (generally) sand in the lower channel and Mercia mudstone (marl) IBPB8270R001F01_EIA REPORT.pdf:59:in the channel in the vicinity of the NGCT. The total volume of dredged material is predicted to be IBPB8270R001F01_EIA REPORT.pdf:59:approximately 4.8 million m3. The dredging (and placement of dredged material at the reclamation site, if IBPB8270R001F01_EIA REPORT.pdf:59:required) will generate a plume of sediment in the water column. The simulated dredge locations and the IBPB8270R001F01_EIA REPORT.pdf:59:background concentrations (up to 1000mg/l) occurs within the immediate vicinity of the dredger (with IBPB8270R001F01_EIA REPORT.pdf:59:Figure 6.1 Simulated dredge locations for CSD and TSHD and sensitive receptor points IBPB8270R001F01_EIA REPORT.pdf:59:to be greatest in the immediate vicinity of the dredger (see Figure 6.2 to 6.4). Much of the material is IBPB8270R001F01_EIA REPORT.pdf:59:therefore predicted to deposit within the area of the proposed dredge footprint and would be re-dredged or IBPB8270R001F01_EIA REPORT.pdf:59:would deposit within an already dredged area. IBPB8270R001F01_EIA REPORT.pdf:60:For dredging in the Seaton Channel area, deposition is predicted to occur on Seal Sands, however, depths IBPB8270R001F01_EIA REPORT.pdf:60:are predicted to be fractions of a millimetre (up to 0.05mm over three tides) (Figure 6.5). The dredging is IBPB8270R001F01_EIA REPORT.pdf:60:for deposition in Seaton Channel. The dredging is predicted to have little influence on suspended solid IBPB8270R001F01_EIA REPORT.pdf:61:Figure 6.2 Peak concentration and peak deposition for cutter suction dredger at location 1, spring tide, IBPB8270R001F01_EIA REPORT.pdf:62:Figure 6.3 Peak concentration and peak deposition for cutter suction dredger at location 2 spring tide, IBPB8270R001F01_EIA REPORT.pdf:63:Figure 6.4 Peak concentration and peak deposition for TSHD dredging sand in the approach channel, IBPB8270R001F01_EIA REPORT.pdf:64:(Locations 3 and 4) for TSHD dredging sand in the approach channel, spring tide, low flow conditions IBPB8270R001F01_EIA REPORT.pdf:65:(Locations 3 and 4) for TSHD dredging sand in the approach channel and runoff from the reclamation site, IBPB8270R001F01_EIA REPORT.pdf:66:Figure 6.7 Time histories of concentration at Bran and North Gare Sands for TSHD dredging sand in IBPB8270R001F01_EIA REPORT.pdf:67:During the capital dredging works, other port facilities would remain operational. Maintenance dredging is, IBPB8270R001F01_EIA REPORT.pdf:67:therefore, expected to continue throughout the capital dredge period. The capital dredge is also expected IBPB8270R001F01_EIA REPORT.pdf:67:to influence maintenance dredging requirements during and immediately after the period of construction. IBPB8270R001F01_EIA REPORT.pdf:67:However, dredging of the lower reaches of the river to remove sands driven into the mouth of the river, IBPB8270R001F01_EIA REPORT.pdf:67:represents the main maintenance dredging operation undertaken by PDT on the Tees. The capital dredging IBPB8270R001F01_EIA REPORT.pdf:67:also requires the dredging of sands from the lower reaches of the river, which are to be used in the IBPB8270R001F01_EIA REPORT.pdf:67:reclamation behind the new quay wall. When capital dredging of the lower reaches is being undertaken, IBPB8270R001F01_EIA REPORT.pdf:67:therefore, this will negate a large proportion of the requirement for maintenance dredging. IBPB8270R001F01_EIA REPORT.pdf:67:As a consequence, PDT would use this opportunity to undertake maintenance dredging elsewhere, for IBPB8270R001F01_EIA REPORT.pdf:67:areas which are close to where the dredging for sands will be taking place. If required, PDT would keep IBPB8270R001F01_EIA REPORT.pdf:67:the in-combination effects of the capital and maintenance dredging have been considered through a model IBPB8270R001F01_EIA REPORT.pdf:67:The capital dredging scenario used in the model was a large (6,000m 3 capacity) TSHD removing material IBPB8270R001F01_EIA REPORT.pdf:67:dredge. In addition, a potential ‘worst’ case for supply of material to Seal Sands from maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:67:was identified. This is deemed to be the situation when short-term maintenance dredging is required in the IBPB8270R001F01_EIA REPORT.pdf:67:maintenance dredging would be carried out by a small TSHD (approximating to PDT’s TSHD Heortnesse). IBPB8270R001F01_EIA REPORT.pdf:67:Due to the similarity of the mid to far-field effects of a plume created by the CSD dredging in the upper IBPB8270R001F01_EIA REPORT.pdf:67:dredging. The model was used to simulate the dredging scenario during a spring tide with low river flow. IBPB8270R001F01_EIA REPORT.pdf:67:The simulation was run for three tidal cycles with the dredgers releasing fine material (less than 60 microns) IBPB8270R001F01_EIA REPORT.pdf:67:The dredger and sediment parameters used for the simulation were: IBPB8270R001F01_EIA REPORT.pdf:67:Cutter suction dredger (comparable to maintenance dredging) IBPB8270R001F01_EIA REPORT.pdf:68:Large Trailing Suction Hopper Dredger (6,000m3 capacity, capital dredging) - IBPB8270R001F01_EIA REPORT.pdf:68: • Dredge cycle time = 190 mins IBPB8270R001F01_EIA REPORT.pdf:68: • Total dredge time = 60 mins IBPB8270R001F01_EIA REPORT.pdf:68: • Speed of dredger when working = 0.75 m/s (1.5 knots) IBPB8270R001F01_EIA REPORT.pdf:68:maintenance dredging activity in the Seaton Channel turning circle during the capital dredging is not IBPB8270R001F01_EIA REPORT.pdf:68:maintenance dredging. The overall footprint of the concentration and deposition on Seal Sands is very IBPB8270R001F01_EIA REPORT.pdf:68:similar to that for the capital dredge alone. However, the area of peak concentration greater than 50 mg/l IBPB8270R001F01_EIA REPORT.pdf:68:is increased by the inclusion of the maintenance dredging. IBPB8270R001F01_EIA REPORT.pdf:68:maintenance dredging is discernible in the time series of concentration, the results are not significantly IBPB8270R001F01_EIA REPORT.pdf:68:an increase compared to the capital dredging alone, but the resultant increases in deposition remain less IBPB8270R001F01_EIA REPORT.pdf:69:Figure 6.8 Peak concentration and peak deposition for combined capital and maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:70:maintenance dredging scenario, spring tide, low flow conditions IBPB8270R001F01_EIA REPORT.pdf:71:maintenance dredging scenario, spring tide, low flow conditions IBPB8270R001F01_EIA REPORT.pdf:73:proposed dredged trenches at the edges of the channel. IBPB8270R001F01_EIA REPORT.pdf:73:swell height of 6m (return period of 1 in 1 year) will be reflected on the side of the dredged channel and IBPB8270R001F01_EIA REPORT.pdf:73:maintenance dredging that exists at this location. A sensitivity test was therefore performed to illustrate the IBPB8270R001F01_EIA REPORT.pdf:73:Changes to the cross-sectional area of an estuary due to capital dredging and reclamation can influence IBPB8270R001F01_EIA REPORT.pdf:74:The main potential for effect on intertidal areas is predicted at Seal Sands. During the dredging, about 3% IBPB8270R001F01_EIA REPORT.pdf:74:of the material dredged in the outer channel is predicted to deposit on Seal Sands. This is a minor effect IBPB8270R001F01_EIA REPORT.pdf:75: capital dredging, reclamation and piling. IBPB8270R001F01_EIA REPORT.pdf:75: dredging. IBPB8270R001F01_EIA REPORT.pdf:76: of the dredged material may be required to assess the suitability for disposal at Section 7.1.2 and Section 7.3. IBPB8270R001F01_EIA REPORT.pdf:76: empower the holders to dredge, which has the potential to disturb and re-distribute the SEIR has been provided following an IBPB8270R001F01_EIA REPORT.pdf:76:are predicted to occur (e.g. sediment plumes generated during capital dredging and effects on tidal currents IBPB8270R001F01_EIA REPORT.pdf:76:samples within and adjacent to the proposed dredge envelope (see Figure 7.1). The MMO confirmed that IBPB8270R001F01_EIA REPORT.pdf:77: Proposed dredge footprint IBPB8270R001F01_EIA REPORT.pdf:77: F C9 C10 Dredge sectors IBPB8270R001F01_EIA REPORT.pdf:78:dredge disposal licence (L/2015/00427/1). As the maintenance dredge footprint extends beyond the NGCT IBPB8270R001F01_EIA REPORT.pdf:78:dredge footprint, the results from the 37 samples were supplemented with the findings of 10 surface samples IBPB8270R001F01_EIA REPORT.pdf:78:collected in December 2018 within the Tees upstream of the NGCT dredge footprint (as well as six surface IBPB8270R001F01_EIA REPORT.pdf:78:across the full maintenance dredge footprint in the Tees. IBPB8270R001F01_EIA REPORT.pdf:78: • Cefas Guideline Action Levels for the disposal of dredged material (Cefas, 2000); and, IBPB8270R001F01_EIA REPORT.pdf:78:The Action Levels are used as part of a ‘weight of evidence’ approach to assessing the suitability of dredged IBPB8270R001F01_EIA REPORT.pdf:78:unsuitable for disposal at sea. Dredged material with contaminant concentrations between Action Level 1 IBPB8270R001F01_EIA REPORT.pdf:80:The potential impacts associated with the proposed offshore disposal of dredged material are considered in IBPB8270R001F01_EIA REPORT.pdf:83:requirements on PDT’s maintenance dredge disposal licence (reference L/2015/00427). The MMO did not IBPB8270R001F01_EIA REPORT.pdf:83:apply any exclusion zones to the maintenance dredge disposal licence following review of the PDBE results. IBPB8270R001F01_EIA REPORT.pdf:83:project comprised recovery of six surface samples from the proposed dredge footprint for that scheme (as IBPB8270R001F01_EIA REPORT.pdf:85:location within the proposed Tees GasPort dredge footprint. Minor exceedances of Action Level 1 were IBPB8270R001F01_EIA REPORT.pdf:86:13 surface samples from within and adjacent to the proposed dredge footprint for the NGCT scheme. IBPB8270R001F01_EIA REPORT.pdf:86:proposed dredge, as well as that at a number of ‘receptor sites’ where the dredged material could ultimately IBPB8270R001F01_EIA REPORT.pdf:90:undertake maintenance dredging of the river to maintain the advertised dredge depths, with mid-licence IBPB8270R001F01_EIA REPORT.pdf:90:dredge disposal licence (to ensure that the maintenance dredged material remains suitable for offshore IBPB8270R001F01_EIA REPORT.pdf:90: dredging IBPB8270R001F01_EIA REPORT.pdf:90:Remobilisation and dispersion of sediment during capital dredging IBPB8270R001F01_EIA REPORT.pdf:90:As described within Section 3, the construction phase of the proposed scheme involves capital dredging of IBPB8270R001F01_EIA REPORT.pdf:90:as well as the re-use of dredged material within the reclamation process. IBPB8270R001F01_EIA REPORT.pdf:91:The analysis of sediment quality samples recovered from within the proposed dredge footprint has shown IBPB8270R001F01_EIA REPORT.pdf:91:The effect of capital dredging on SSC has been predicted for dredging using a CSD in the channel in the IBPB8270R001F01_EIA REPORT.pdf:91:Cutter suction dredger IBPB8270R001F01_EIA REPORT.pdf:91:predicted in the immediate vicinity of the dredger; however, effects on SSC are very localised to the area of IBPB8270R001F01_EIA REPORT.pdf:91:the turning circle (see Figure 6.3). When the dredger is located in the area of the proposed quay wall, peak IBPB8270R001F01_EIA REPORT.pdf:91:SSC are predicted to occur within the immediate vicinity of the dredger, but the sediment plume spreads IBPB8270R001F01_EIA REPORT.pdf:91:further afield (along the tidal axis) compared to dredging in the Tees Dock turning circle. Suspended IBPB8270R001F01_EIA REPORT.pdf:91:sediment concentrations 500m from the dredger are not, however, predicted to exceed levels experienced IBPB8270R001F01_EIA REPORT.pdf:91:as the barge receiving the dredged material. IBPB8270R001F01_EIA REPORT.pdf:92:Trailing suction hopper dredger IBPB8270R001F01_EIA REPORT.pdf:92:Results for the use of a TSHD dredging sand in the lower channel and during reclamation show that peak IBPB8270R001F01_EIA REPORT.pdf:92:increases in SSC of between 500mg/l and 1000mg/l above background are predicted along the dredger IBPB8270R001F01_EIA REPORT.pdf:92:Figure 6.6 illustrates the predicted peak increases and time histories of SSC arising during the dredging in IBPB8270R001F01_EIA REPORT.pdf:92:For both types of dredger (CSD and TSHD), peak SSC (i.e. up to 500mg/l above background) are predicted IBPB8270R001F01_EIA REPORT.pdf:92:in the immediate vicinity of the dredger. This material is predicted to be quickly dispersed either in the water IBPB8270R001F01_EIA REPORT.pdf:92:background within approximately 100m either side of the dredger when the dredger is located in the vicinity IBPB8270R001F01_EIA REPORT.pdf:92:It can, therefore, be concluded that the predicted suspended solids concentrations generated by dredging IBPB8270R001F01_EIA REPORT.pdf:92:of the peaks related to both tidal influence and location of the dredger. IBPB8270R001F01_EIA REPORT.pdf:92:Changes to sediment quality could occur when sediment is released into the water column by dredging, IBPB8270R001F01_EIA REPORT.pdf:92:The dispersion and deposition of sediment caused by the capital dredging is described in Section 6.3. Two IBPB8270R001F01_EIA REPORT.pdf:92:types of dredger were considered in the plume dispersion studies, namely a CSD dredging mudstone (which IBPB8270R001F01_EIA REPORT.pdf:93:would generate fine material when dredged) in the channel in the vicinity of the reclamation, and a TSHD IBPB8270R001F01_EIA REPORT.pdf:93:dredging sand in the lower channel and in the Seaton Channel turning circle area. For the TSHD simulation IBPB8270R001F01_EIA REPORT.pdf:93:the runoff from the dredger pumping ashore at the reclamation site was also included in the simulations. IBPB8270R001F01_EIA REPORT.pdf:93:The plume dispersion studies predict that, during the dredging of sand in the lower channel using a TSHD, IBPB8270R001F01_EIA REPORT.pdf:93:some deposition is predicted at Seal Sands, in the immediate vicinity of the dredger and elsewhere in the IBPB8270R001F01_EIA REPORT.pdf:93:(up to 0.05mm for three tides) with total deposition of approximately 1mm for the duration of dredging in the IBPB8270R001F01_EIA REPORT.pdf:93:lower channel. Fine material would only reach Seal Sands when dredging on spring tides. IBPB8270R001F01_EIA REPORT.pdf:93:Dredging using a CSD further upstream (e.g. in the vicinity of the reclamation) would not result in the IBPB8270R001F01_EIA REPORT.pdf:93:the immediate vicinity of the dredger, with deposition of less than 5mm elsewhere in the subtidal area. IBPB8270R001F01_EIA REPORT.pdf:93:The deposition that is predicted in the immediate vicinity of the dredger is not considered to represent a IBPB8270R001F01_EIA REPORT.pdf:93:significant effect since these locations form part of the capital dredging area (and would, therefore, already IBPB8270R001F01_EIA REPORT.pdf:93:be significantly disturbed) and depositing sediment would be re-dredged. IBPB8270R001F01_EIA REPORT.pdf:93:For the intertidal areas, the magnitude of sediment deposition over the course of the dredging operations is IBPB8270R001F01_EIA REPORT.pdf:93:Notwithstanding the above, the capital dredging is likely to result in an overall slight increase in the IBPB8270R001F01_EIA REPORT.pdf:93:tendency of the substratum to become finer. The net effect of the dredging, however, is not to introduce an IBPB8270R001F01_EIA REPORT.pdf:93:Given the above, the physical impact of sediment deposited as a result of capital dredging on receptor areas IBPB8270R001F01_EIA REPORT.pdf:93:There are a number of controls that would be implemented to ensure that TSS is minimised during dredging. IBPB8270R001F01_EIA REPORT.pdf:93:The main mitigation measure to limit sediment plume is selection of the dredging method. As noted above, IBPB8270R001F01_EIA REPORT.pdf:93:dredging is proposed to be undertaken using a combination of a TSHD and CSD. Controls which would be IBPB8270R001F01_EIA REPORT.pdf:94:and 4) for TSHD dredging sand in Tees approach channel, spring tide, low flow conditions IBPB8270R001F01_EIA REPORT.pdf:95: contaminated sediment during capital dredging IBPB8270R001F01_EIA REPORT.pdf:95:resulting from the dredging is likely to be significantly diluted before it reaches the designated monitoring IBPB8270R001F01_EIA REPORT.pdf:95:The resuspension of sediment as a consequence of the proposed capital dredging could potentially affect IBPB8270R001F01_EIA REPORT.pdf:95:predict the consequences of dredging on dissolved oxygen concentrations. In summary, under a variety of IBPB8270R001F01_EIA REPORT.pdf:95:modelled conditions in the Tyne, such as dredging times, seasonal fluctuations and river flows, the modelling IBPB8270R001F01_EIA REPORT.pdf:95:predicted only small differences between background and dredging impacted dissolved oxygen IBPB8270R001F01_EIA REPORT.pdf:95:the dredging on the Tyne is considered to represent a more conservative scenario, as dredging in the Tees IBPB8270R001F01_EIA REPORT.pdf:96:7.6.2 Potential impacts on water quality due to maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:96:During the operational phase, maintenance dredging within the berth pocket and approach channel would IBPB8270R001F01_EIA REPORT.pdf:96:be required to maintain the dredged depth. Such maintenance dredging would likely lead to an increase in IBPB8270R001F01_EIA REPORT.pdf:96:At present, there is an existing requirement for maintenance dredging of the approach channel and various IBPB8270R001F01_EIA REPORT.pdf:96:berth pockets within the Tees estuary. The existing maintenance dredging regime is implemented and IBPB8270R001F01_EIA REPORT.pdf:96:managed by PDT and the locations, volumes and frequency of dredging are well recorded. IBPB8270R001F01_EIA REPORT.pdf:96:channel would be incorporated into the existing maintenance dredging strategy. The material from the IBPB8270R001F01_EIA REPORT.pdf:96:maintenance dredging would be disposed of at the existing disposal sites in Tees Bay (as currently occurs). IBPB8270R001F01_EIA REPORT.pdf:96:The implications of the proposed scheme on the maintenance dredging strategy have been established IBPB8270R001F01_EIA REPORT.pdf:96:current maintenance dredging strategy during the operation of the proposed scheme. As such, it is IBPB8270R001F01_EIA REPORT.pdf:96:volume of material requiring dredging would not be significantly increased, its composition will be very similar IBPB8270R001F01_EIA REPORT.pdf:96:to that dredged at present and no increase in the frequency of dredging will be required. IBPB8270R001F01_EIA REPORT.pdf:96: maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:96:As noted above, the implications of the proposed scheme on the maintenance dredging strategy have been IBPB8270R001F01_EIA REPORT.pdf:96:the maintenance dredging will be insignificant, with no requirement to change the current strategy. IBPB8270R001F01_EIA REPORT.pdf:97:maintenance dredging that is required due to the proposed scheme, given that the overall volume of material IBPB8270R001F01_EIA REPORT.pdf:97:requiring dredging would not be significantly increased, its composition will be very similar to that dredged IBPB8270R001F01_EIA REPORT.pdf:97:at present and no increase in the frequency of dredging will be required. IBPB8270R001F01_EIA REPORT.pdf:97:given that the effect of the proposed dredging on swell waves from offshore is a reduction in significant wave IBPB8270R001F01_EIA REPORT.pdf:104: • Removal of habitat due to quay construction and capital dredging (and proposed offsetting IBPB8270R001F01_EIA REPORT.pdf:104: • Impacts on marine ecology from increases suspended sediment during capital dredging and IBPB8270R001F01_EIA REPORT.pdf:104: smothering following dredging. IBPB8270R001F01_EIA REPORT.pdf:104: • Impacts on marine communities due to changes in the maintenance dredge regime. IBPB8270R001F01_EIA REPORT.pdf:106: dredged material has been considered IBPB8270R001F01_EIA REPORT.pdf:107:proposed disposal of dredged material to Tees Bay C are considered in Section 26. IBPB8270R001F01_EIA REPORT.pdf:107: • 44 subtidal 0.1m 2 Day grab samples recovered within and adjacent to the proposed capital dredge IBPB8270R001F01_EIA REPORT.pdf:107: capital dredging). IBPB8270R001F01_EIA REPORT.pdf:107: • Deployment of 16 scientific benthic trawls within the proposed dredge footprint using a 20mm mesh IBPB8270R001F01_EIA REPORT.pdf:107: with a 5mm cod end, with the trawls evenly distributed across the dredge area. Fish, shrimp and IBPB8270R001F01_EIA REPORT.pdf:108: TG12 Proposed dredge footprint IBPB8270R001F01_EIA REPORT.pdf:110:The marine elements of the proposed scheme (i.e. the proposed dredge and construction of the quay) are IBPB8270R001F01_EIA REPORT.pdf:110:anticipated to be present in the downstream part of the proposed dredge footprint only; no information is IBPB8270R001F01_EIA REPORT.pdf:110:available for the footprint of the proposed terminal or the upstream part of the proposed dredge footprint. IBPB8270R001F01_EIA REPORT.pdf:110:The mapping illustrates that the downstream part of the proposed dredge footprint is occupied by high IBPB8270R001F01_EIA REPORT.pdf:111: Proposed dredge footprint IBPB8270R001F01_EIA REPORT.pdf:113: Proposed dredge footprint IBPB8270R001F01_EIA REPORT.pdf:124:continue to undertake maintenance dredging of the river and berths to maintain the advertised dredge IBPB8270R001F01_EIA REPORT.pdf:124:9.5.1 Direct removal of habitat due to quay construction and capital dredging IBPB8270R001F01_EIA REPORT.pdf:124:Dredging IBPB8270R001F01_EIA REPORT.pdf:124:The dredging that would be required to deepen the approach channel and the berth pocket would result in IBPB8270R001F01_EIA REPORT.pdf:124:the removal of subtidal benthic community within the footprint of the dredge (an area approximately 120ha IBPB8270R001F01_EIA REPORT.pdf:124:the existing navigation channel and is therefore, already dredged. The area of seabed that will be dredged IBPB8270R001F01_EIA REPORT.pdf:124:that is currently outside of the existing channel comprises 3.5ha. The capital dredging, which involves IBPB8270R001F01_EIA REPORT.pdf:124:dredging adjacent to the Vopak foreshore opposite the proposed reclamation area (to locally realign the IBPB8270R001F01_EIA REPORT.pdf:124:would arise as a result of the capital dredging. IBPB8270R001F01_EIA REPORT.pdf:125:The impact on the subtidal due to the proposed dredge does not constitute a long-term habitat loss (as IBPB8270R001F01_EIA REPORT.pdf:125:subtidal habitat would still be present below the dredged footprint), but, in the short-term, the benthic IBPB8270R001F01_EIA REPORT.pdf:125:community would be removed from within the capital dredged areas. IBPB8270R001F01_EIA REPORT.pdf:125:Available geotechnical information which was used to inform the scheme design and the anticipated dredge IBPB8270R001F01_EIA REPORT.pdf:125:within the proposed dredge footprint would not materially change following completion of the dredge. IBPB8270R001F01_EIA REPORT.pdf:125:species identified from the March 2019 survey to changes in habitat as a result of dredging activity. As IBPB8270R001F01_EIA REPORT.pdf:125:rapidly following dredging, recruiting from surrounding population within the year (Diaz-Castaneda et al., IBPB8270R001F01_EIA REPORT.pdf:125:dredging. IBPB8270R001F01_EIA REPORT.pdf:125:found both within and outside of the existing maintenance dredge footprint, indicating a relatively widespread IBPB8270R001F01_EIA REPORT.pdf:125:daily maintenance dredging, as well as the presence of this species in low abundance, it is highly unlikely IBPB8270R001F01_EIA REPORT.pdf:125:disturbance from dredging. The magnitude of the impact is considered to be low given the very small IBPB8270R001F01_EIA REPORT.pdf:125:from capital dredging on A. islandica and S. spinulosa is predicted to be minor adverse. IBPB8270R001F01_EIA REPORT.pdf:126:proposed dredge (Source: MarLIN website) IBPB8270R001F01_EIA REPORT.pdf:127:the size of the proposed dredge, the magnitude of the effect is predicted to be medium, however the IBPB8270R001F01_EIA REPORT.pdf:127:proposed dredge would not present an irreversible loss of habitat. The benthic community would be IBPB8270R001F01_EIA REPORT.pdf:127:expected to recover to one that is similar to that present throughout the existing dredged approach channel IBPB8270R001F01_EIA REPORT.pdf:127:across the majority of the proposed dredge footprint. Taking the above into account, as well as the low IBPB8270R001F01_EIA REPORT.pdf:127:sensitivity of the key species present in the dredge footprint (apart from the species of conservation interest IBPB8270R001F01_EIA REPORT.pdf:127:discussed above), it is concluded that the potential impact on subtidal habitat as a result of the dredge would IBPB8270R001F01_EIA REPORT.pdf:127:maintenance dredged silt, thereby enhancing the ecological value of the intertidal area from its current IBPB8270R001F01_EIA REPORT.pdf:127:It is recognised that the port terminal and capital dredging would have an impact on biodiversity that is IBPB8270R001F01_EIA REPORT.pdf:127:above). To this end, the footprint of the proposed capital dredging and quay construction has been IBPB8270R001F01_EIA REPORT.pdf:128: sediment during dredging IBPB8270R001F01_EIA REPORT.pdf:128:During capital dredging, a proportion of the material that is dredged would be disturbed and re-suspended IBPB8270R001F01_EIA REPORT.pdf:128:In general, sediment plumes induced by dredging are considered to pose only a limited risk to water quality IBPB8270R001F01_EIA REPORT.pdf:128:accommodate an increased oxygen demand, particularly where dredging takes place in open sea or IBPB8270R001F01_EIA REPORT.pdf:128:dredging periods. IBPB8270R001F01_EIA REPORT.pdf:128:For both types of dredger (CSD and TSHD), peak suspended solids concentrations (i.e. up to 500mg/l above IBPB8270R001F01_EIA REPORT.pdf:128:background) are predicted in the immediate vicinity of the dredger. Sediment plume modelling predicts that IBPB8270R001F01_EIA REPORT.pdf:128:side of the dredger when it is located in the vicinity of the proposed reclamation. IBPB8270R001F01_EIA REPORT.pdf:129:Based on the above, this characteristic species within the footprint of the proposed dredge is considered to IBPB8270R001F01_EIA REPORT.pdf:129:The dominant sediment biotope present within the dredge footprint is EUNIS biotope A5.323, Nephtys IBPB8270R001F01_EIA REPORT.pdf:129:9.5.3 Potential impacts to marine ecology from smothering following dredging IBPB8270R001F01_EIA REPORT.pdf:129:Smothering caused by sedimentation of material resuspended by capital dredging within intertidal IBPB8270R001F01_EIA REPORT.pdf:129:During the capital dredging a proportion of the material that is dredged would be disturbed and re-suspended IBPB8270R001F01_EIA REPORT.pdf:129:material during dredging is described in Sections 6 and 7. IBPB8270R001F01_EIA REPORT.pdf:129:generated by capital dredging of sand in the lower Tees estuary). The dredging is not predicted to result in IBPB8270R001F01_EIA REPORT.pdf:129:It is predicted that peak deposition during the capital dredging would be up to 0.05mm per tide and is likely IBPB8270R001F01_EIA REPORT.pdf:129:dredging sand will be up to 1mm. As described in Section 6, this sediment will be subject to a number of IBPB8270R001F01_EIA REPORT.pdf:129:proportion of the dredged material would be reworked into the substratum. As a worse-case scenario, it is IBPB8270R001F01_EIA REPORT.pdf:129:predicted that the net effect of the dredging and dispersive processes acting on the sediment following IBPB8270R001F01_EIA REPORT.pdf:129:proposed dredging would not give rise to the loss of a component of the benthic community. IBPB8270R001F01_EIA REPORT.pdf:130:Smothering caused by sedimentation of material resuspended by capital dredging within subtidal IBPB8270R001F01_EIA REPORT.pdf:130:Capital dredging is predicted to result in the deposition of fine sediment within the subtidal zone. Much of IBPB8270R001F01_EIA REPORT.pdf:130:the area affected by this deposition is within the footprint of the dredging and, therefore, this area will be IBPB8270R001F01_EIA REPORT.pdf:130:directly impacted by the dredging activity itself. The deposition of fine material within this area is therefore IBPB8270R001F01_EIA REPORT.pdf:130:Elsewhere in the subtidal area (i.e. outside of the footprint of the capital dredging) peak deposition of up to IBPB8270R001F01_EIA REPORT.pdf:130:dispersed as tidal current increase. It is expected, however, that the dredging would result in a layer of fluid IBPB8270R001F01_EIA REPORT.pdf:131: worst-case scenario (this form of dredging is proposed for a proportion of the NGCT dredge). The IBPB8270R001F01_EIA REPORT.pdf:131: reported in Section 3, Phase 2 of the dredging involves the removal of mudstone using a CSD IBPB8270R001F01_EIA REPORT.pdf:131: small, confined areas of dredging, for example, alongside the existing quay wall, to dredge berth IBPB8270R001F01_EIA REPORT.pdf:131:In order to assess the environmental effects that impact piling and dredging could have on marine mammals, IBPB8270R001F01_EIA REPORT.pdf:131:Modelling of underwater noise from the proposed dredging operations shows that noise levels are not IBPB8270R001F01_EIA REPORT.pdf:132:dBht (species) sound propagation for backhoe and suction dredging is not predicted to reach the level at IBPB8270R001F01_EIA REPORT.pdf:132:bankside from the noise source). The 90 and 75 dBht impact ranges for backhoe and suction dredging are IBPB8270R001F01_EIA REPORT.pdf:132:dredging would be removed in full following completion of these activities. The modelling results predicted IBPB8270R001F01_EIA REPORT.pdf:134:for the terminal (as well as shipping movements required during construction to undertake the dredge and IBPB8270R001F01_EIA REPORT.pdf:135:Changes to the cross-sectional area of an estuary due to capital dredging and reclamation can influence IBPB8270R001F01_EIA REPORT.pdf:136:effects on the existing maintenance dredging strategy, and no changes to the present-day maintenance IBPB8270R001F01_EIA REPORT.pdf:136:dredging strategy are necessary. As such, there would be no impact on marine communities as a result of IBPB8270R001F01_EIA REPORT.pdf:136:the maintenance dredging requirement arising from the proposed scheme. IBPB8270R001F01_EIA REPORT.pdf:137: dredging IBPB8270R001F01_EIA REPORT.pdf:137:The impact of capital dredging on the existing marine communities is described in Section 9.5. Following IBPB8270R001F01_EIA REPORT.pdf:137:the completion of the dredging, the marine community within the dredge footprint would be expected to IBPB8270R001F01_EIA REPORT.pdf:137:Given that the navigation channel is dredged to geological material, the proposed capital dredging would be IBPB8270R001F01_EIA REPORT.pdf:137:over time the marine communities that colonise within the proposed dredge area would be expected to be IBPB8270R001F01_EIA REPORT.pdf:137:capital dredging would be beneficial compared with the immediate post-dredge situation but maintenance IBPB8270R001F01_EIA REPORT.pdf:137:dredging would restrict continuous recovery. IBPB8270R001F01_EIA REPORT.pdf:137:community following completion of the capital dredge. IBPB8270R001F01_EIA REPORT.pdf:137:construction along its shores. The Tees estuary is also subject to existing maintenance dredging on an IBPB8270R001F01_EIA REPORT.pdf:140: • Effects of sediment deposition on intertidal food resources due to capital dredging. IBPB8270R001F01_EIA REPORT.pdf:140: • Potential effect of maintenance dredging on food resources. IBPB8270R001F01_EIA REPORT.pdf:143: Proposed dredge footprint IBPB8270R001F01_EIA REPORT.pdf:145:dredge footprint overlaps with Bran Sands North sector (52428), North Gare Sands sectors (52413) and the IBPB8270R001F01_EIA REPORT.pdf:145:pSPA and Ramsar site using data from 2013/14 to 2017/18. Given that the proposed dredge extends only IBPB8270R001F01_EIA REPORT.pdf:152:(which contains the proposed container terminal footprint). The dredge footprint overlaps with other WeBS IBPB8270R001F01_EIA REPORT.pdf:154: Proposed dredge footprint IBPB8270R001F01_EIA REPORT.pdf:156:As discussed in Section 6, the proposed capital dredge and reclamation process would cause suspension IBPB8270R001F01_EIA REPORT.pdf:156:Sediment quality data from within the footprint of the proposed dredge has confirmed that there are no IBPB8270R001F01_EIA REPORT.pdf:156:Level 1 only. The predicted increase in SSC resulting from dredging activity is described and assessed in IBPB8270R001F01_EIA REPORT.pdf:156:reductions in water quality due to the proposed capital dredging and reclamation activities only. IBPB8270R001F01_EIA REPORT.pdf:156:The potential effect of dredging using a CSD and TSHD on SSC in the water column is likely to result in a IBPB8270R001F01_EIA REPORT.pdf:156:estuary. The modelled sediment dispersion plume from the proposed NGCT dredge does not interact with IBPB8270R001F01_EIA REPORT.pdf:157: Proposed dredge footprint IBPB8270R001F01_EIA REPORT.pdf:158:important for foraging and therefore terns may be sensitive to the turbidity caused by dredging operations IBPB8270R001F01_EIA REPORT.pdf:158:on (MMO, 2018). However, the occurrence of frequent maintenance dredging activity within and adjacent IBPB8270R001F01_EIA REPORT.pdf:158:As reported in Section 6, for all dredger simulations, the largest rise in peak SSC is predicted in the IBPB8270R001F01_EIA REPORT.pdf:158:immediate vicinity of the dredger, centred either at the location of the barge loading pontoon or along the IBPB8270R001F01_EIA REPORT.pdf:158:line of the trailing suction dredger track. The hydrodynamic and sedimentary modelling results illustrate that IBPB8270R001F01_EIA REPORT.pdf:158:For spring tide conditions with low freshwater flow, the effect of dredging sandy material with a TSHD in the IBPB8270R001F01_EIA REPORT.pdf:158:and 1000mg/l along the dredger track and in the vicinity of the run-off from the reclamation. The extent of IBPB8270R001F01_EIA REPORT.pdf:158:the predicted increase in SSC associated with both dredging techniques assessed (at the simulated dredge IBPB8270R001F01_EIA REPORT.pdf:158:As shown in Figures 6.2 to 6.4, the capital dredging is predicted to result in an increase in SSC, which has IBPB8270R001F01_EIA REPORT.pdf:158:immediate vicinity of the dredger). Therefore, it is predicated that the impacts beyond the immediate vicinity IBPB8270R001F01_EIA REPORT.pdf:158:of the dredger would be negligible in terms of reductions in foraging ability, as the predicted increases in IBPB8270R001F01_EIA REPORT.pdf:158:returning to background levels relatively quickly following completion of the dredge. Terns are considered IBPB8270R001F01_EIA REPORT.pdf:158:Given the approximate duration of the proposed dredge (predicted at between four and 11 weeks for IBPB8270R001F01_EIA REPORT.pdf:159:the axis of the estuary, rather than dredging across the width of the river. This will reduce both the extent IBPB8270R001F01_EIA REPORT.pdf:159:and impact of the dredged plume, as any plume generated by operations has been predicted (by HR IBPB8270R001F01_EIA REPORT.pdf:159:Wallingford) to remain on the same side of the river as the dredging operation. IBPB8270R001F01_EIA REPORT.pdf:159:This methodology will ensure that a completed strip of the river is clear before the dredger is deployed to IBPB8270R001F01_EIA REPORT.pdf:159:dredging be undertaken during the months when migratory fish are present in the river, one side of the river IBPB8270R001F01_EIA REPORT.pdf:159:move past the dredging activity (and therefore provide an area within which birds can continue to feed within IBPB8270R001F01_EIA REPORT.pdf:159:Mitigation of the plume effects by reducing the size of the dredger, and thus reducing the rate of overflow, IBPB8270R001F01_EIA REPORT.pdf:159:is not viable since the size of dredger has to be sufficient to carry a large enough drag head and to have IBPB8270R001F01_EIA REPORT.pdf:159:sufficient propulsion power to undertake the required dredging operation. IBPB8270R001F01_EIA REPORT.pdf:159:by reducing the size of the dredger, and thus reducing the rate of overflow, will not be possible as a smaller IBPB8270R001F01_EIA REPORT.pdf:159:dredger would have insufficient power to be able to cut though the stronger materials and, hence, the smaller IBPB8270R001F01_EIA REPORT.pdf:159:11.5.3 Direct loss of intertidal due to reclamation and capital dredging IBPB8270R001F01_EIA REPORT.pdf:159:Changes to the cross-sectional area of the Tees estuary as a consequence of capital dredging and IBPB8270R001F01_EIA REPORT.pdf:160: dredging IBPB8270R001F01_EIA REPORT.pdf:160:The deposition of fine sediment within intertidal areas due to capital dredging has the potential to affect IBPB8270R001F01_EIA REPORT.pdf:160:areas affected by the dredging, is presented in Sections 6 and 7. The implications of this for benthic IBPB8270R001F01_EIA REPORT.pdf:160:benthic communities of intertidal areas would not be affected by deposition associated with capital dredging. IBPB8270R001F01_EIA REPORT.pdf:160:of the effects of capital dredging and no impact is predicted. IBPB8270R001F01_EIA REPORT.pdf:160:will, therefore, be preferentially placed on this side of the estuary for the duration of the capital dredging to IBPB8270R001F01_EIA REPORT.pdf:163:the overriding consequence of the generation of noise during piling (as well as the dredging and construction IBPB8270R001F01_EIA REPORT.pdf:165:eastern side of the estuary for the duration of the capital dredge, to reduce the potential for sediment IBPB8270R001F01_EIA REPORT.pdf:165:transport to Seal Sands during the capital dredge. This would reduce the potential for any construction IBPB8270R001F01_EIA REPORT.pdf:166:11.6.4 Potential effect of maintenance dredging on food resources IBPB8270R001F01_EIA REPORT.pdf:166:dredging requirement during the operational phase but this would not warrant an increased frequency of IBPB8270R001F01_EIA REPORT.pdf:166:dredging above that which already occurs (however the campaigns are likely to be longer duration). As the IBPB8270R001F01_EIA REPORT.pdf:166:proposed scheme footprint is already subject to maintenance dredging and no increase in maintenance IBPB8270R001F01_EIA REPORT.pdf:166:dredge frequency is predicted, an impact of negligible significance is predicted to the feeding resource of IBPB8270R001F01_EIA REPORT.pdf:166:Maintenance dredging of the approach channel (and the associated regular disturbance to the benthic IBPB8270R001F01_EIA REPORT.pdf:166:During the operational phase, there would be no change to the maintenance dredging method or frequency IBPB8270R001F01_EIA REPORT.pdf:166:and, therefore, there would be no significant underwater noise effect associated with maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:167:The capital dredging, which involves dredging adjacent to the Vopak foreshore opposite the proposed IBPB8270R001F01_EIA REPORT.pdf:167:area would arise as a result of the capital dredging. IBPB8270R001F01_EIA REPORT.pdf:167:due to the direct effects of reclamation works or capital dredging. IBPB8270R001F01_EIA REPORT.pdf:168: • Direct uptake and disturbance of fish during capital dredging. IBPB8270R001F01_EIA REPORT.pdf:168: • Impacts caused by increased suspended sediment during capital dredging and dewatering during IBPB8270R001F01_EIA REPORT.pdf:169:implications and are not considered to be appropriate given the daily maintenance dredging which is IBPB8270R001F01_EIA REPORT.pdf:169:occur (e.g. sediment plumes generated during capital dredging and effects on tidal currents during IBPB8270R001F01_EIA REPORT.pdf:169:dredge footprint undertaken during March 2019 by Ocean Ecology Ltd (Figure 9.1). The trawls were evenly IBPB8270R001F01_EIA REPORT.pdf:169:distributed across the proposed dredge footprint and tows were undertaken for between seven and nine IBPB8270R001F01_EIA REPORT.pdf:169:(2011) and further detailed in the Recommended Operating Guidelines (ROG) for MESH trawls and dredges IBPB8270R001F01_EIA REPORT.pdf:169:and further detailed in the ROG for MESH trawls and dredges (Curtis & Coggan 2007). A labelled sample IBPB8270R001F01_EIA REPORT.pdf:172:and adjacent to the proposed dredge footprint. It is recognised that the benthic trawl data provides only a IBPB8270R001F01_EIA REPORT.pdf:172:snapshot of the fisheries use of the proposed dredge footprint and does not effectively survey / sample IBPB8270R001F01_EIA REPORT.pdf:186:12.5.1 Direct uptake and disturbance of fish during capital dredging IBPB8270R001F01_EIA REPORT.pdf:186:During the capital dredging there is the potential for fish eggs, fish, shellfish and the food resources on which IBPB8270R001F01_EIA REPORT.pdf:186:they rely to be taken up directly by the dredger. Potential effects are injury, mortality and displacement. IBPB8270R001F01_EIA REPORT.pdf:186:the area, the 16 trawls undertaken within the proposed dredge footprint during March 2019 confirmed the IBPB8270R001F01_EIA REPORT.pdf:186:maintenance dredging operations) is likely to result in an avoidance reaction, with the presence of the IBPB8270R001F01_EIA REPORT.pdf:186:dredge head likely resulting in fish temporarily moving away from the area, thereby avoiding direct uptake. IBPB8270R001F01_EIA REPORT.pdf:186:2019 benthic survey, the extensive maintenance dredging undertaken by PDT within the proposed dredge IBPB8270R001F01_EIA REPORT.pdf:186:As assessed in Section 9.5, the effect of the dredging does not represent an irreversible loss of habitat; the IBPB8270R001F01_EIA REPORT.pdf:186:dredged approach channel. IBPB8270R001F01_EIA REPORT.pdf:186:is already subject to regular maintenance dredging. It is recognised that there is a risk of demersal fish IBPB8270R001F01_EIA REPORT.pdf:186:species being present within the proposed dredge footprint which could be subject to uptake, however, it is IBPB8270R001F01_EIA REPORT.pdf:186:uptake of fish during dredging and any effect would be localised. The impact is therefore predicted to be of IBPB8270R001F01_EIA REPORT.pdf:187: sediment concentrations due to dredging and dewatering of the IBPB8270R001F01_EIA REPORT.pdf:187:The construction phase will result in increased SSC in the water column during capital dredging and during IBPB8270R001F01_EIA REPORT.pdf:187:fish physiology. The capital dredging and terminal construction could coincide with the timing of salmon IBPB8270R001F01_EIA REPORT.pdf:187:It is predicted that the increase in SSC arising during capital dredging would be outside the range of natural IBPB8270R001F01_EIA REPORT.pdf:187:variation, in the immediate vicinity of the dredger (see Section 6). Sediment plume modelling has however IBPB8270R001F01_EIA REPORT.pdf:187:predicted that peak SSC’s in the main channel are significantly affected by the location of the dredger. When IBPB8270R001F01_EIA REPORT.pdf:187:solids are predicted to decrease significantly outside of the immediate vicinity of the dredger (see Section IBPB8270R001F01_EIA REPORT.pdf:187:in suspended solids also occurs when the dredger is located in the main channel adjacent to North Gare IBPB8270R001F01_EIA REPORT.pdf:187:The cross section of the estuary affected by the plume arising from the proposed dredging is particularly IBPB8270R001F01_EIA REPORT.pdf:187:proposed dredging, significant elevations in SSC are predicted to occur in the immediate vicinity of the IBPB8270R001F01_EIA REPORT.pdf:187:dredger and along the streamline; however, the relatively narrow nature of the Tees means that there is the IBPB8270R001F01_EIA REPORT.pdf:187:the course of the capital dredging. It is concluded, therefore, that there could be temporary impacts on IBPB8270R001F01_EIA REPORT.pdf:188: undertaken in long strips along the axis of the estuary rather than dredging across the width of the IBPB8270R001F01_EIA REPORT.pdf:188: river. This is to reduce both the extent and impact of the dredged plume, as any plume generated IBPB8270R001F01_EIA REPORT.pdf:188: by operations has been predicted to remain on the same side of the river as the dredging operation. IBPB8270R001F01_EIA REPORT.pdf:188:of the river at a time and, should dredging be undertaken during the months when migratory fish are present IBPB8270R001F01_EIA REPORT.pdf:188:which migratory fish will be able to move past the dredging activity (and for resident species to relocate to IBPB8270R001F01_EIA REPORT.pdf:188:not viable since the size of dredger has to be sufficient to carry a large enough drag head and to have IBPB8270R001F01_EIA REPORT.pdf:188:sufficient propulsion power to undertake the required dredging operation. IBPB8270R001F01_EIA REPORT.pdf:188:As discussed in Section 6, a proportion of the material that would be disturbed during dredging would be re- IBPB8270R001F01_EIA REPORT.pdf:188:dredge envelope has confirmed that there are no exceedances of Action Level 2, and therefore the IBPB8270R001F01_EIA REPORT.pdf:189:The re-suspension of sediment as a consequence of the proposed dredging could also potentially affect IBPB8270R001F01_EIA REPORT.pdf:189:In general, sediment plumes induced by dredging are considered to pose only a limited risk to water quality IBPB8270R001F01_EIA REPORT.pdf:189:increased oxygen demand, particularly where dredging takes place in open sea or estuaries (CIRIA, 2000). IBPB8270R001F01_EIA REPORT.pdf:189:It has also been reported that dredging activities often generate no more increased suspended sediments IBPB8270R001F01_EIA REPORT.pdf:189:dredging operations (Environment Canada, 1994, cited within the UK Marine SACs Project, 2001). It is IBPB8270R001F01_EIA REPORT.pdf:189:therefore often very difficult to distinguish the environmental effects of dredging from those resulting from IBPB8270R001F01_EIA REPORT.pdf:189:It is predicted that the increase in TSS during capital dredging would be outside the range of natural IBPB8270R001F01_EIA REPORT.pdf:189:variation, particularly in the immediate vicinity of the dredger (peaking at up to 500mg/l above background IBPB8270R001F01_EIA REPORT.pdf:189:in the immediate vicinity of the dredger) (see Section 6). It is therefore concluded that avoidance reactions IBPB8270R001F01_EIA REPORT.pdf:189:location of the dredger. When located in the Tees Dock turning circle or in the area of the proposed quay IBPB8270R001F01_EIA REPORT.pdf:189:dredger (see Section 6). This occurs both laterally and within the streamlining of the vessel. This significant IBPB8270R001F01_EIA REPORT.pdf:189:decrease in suspended solids also occurs when the dredger is located in the main channel adjacent to North IBPB8270R001F01_EIA REPORT.pdf:189:The cross section of the estuary affected by the plume arising from the proposed dredging is particularly IBPB8270R001F01_EIA REPORT.pdf:189:proposed dredging, significant elevations in SSC are predicted to occur in the immediate vicinity of the IBPB8270R001F01_EIA REPORT.pdf:189:dredger and along the streamline; however, the relatively narrow nature of the Tees means that there is the IBPB8270R001F01_EIA REPORT.pdf:189:the course of the capital dredging. It is concluded, therefore, that there could be temporary impacts on IBPB8270R001F01_EIA REPORT.pdf:190:terms of peak TSS in the immediate vicinity of the dredger), the magnitude of the impact is considered to IBPB8270R001F01_EIA REPORT.pdf:190:The controls outlined in Section 7 with regard to minimising suspended sediment load during dredging are IBPB8270R001F01_EIA REPORT.pdf:191:The source levels from dredging operations are below the thresholds which would be anticipated to result IBPB8270R001F01_EIA REPORT.pdf:192:as the dredging and construction activities) will be for fish to move away from the source. Therefore, in the IBPB8270R001F01_EIA REPORT.pdf:193: maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:193:There would be a requirement for maintenance dredging of the newly deepened approach channel and IBPB8270R001F01_EIA REPORT.pdf:193:berth pocket during the operational phase, to maintain the required operating depth. Maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:193:represents a repeated disturbance to the benthic community within the dredged area, and limits recovery of IBPB8270R001F01_EIA REPORT.pdf:193:the benthic community following the impact that would occur as a result of capital dredging. Although there IBPB8270R001F01_EIA REPORT.pdf:193:would be recovery following capital dredging, the community would be likely characterised by a community IBPB8270R001F01_EIA REPORT.pdf:193:similar to that observed within the pre-capital dredge approach channel (given that the area is already IBPB8270R001F01_EIA REPORT.pdf:193:subject to ongoing disturbance from maintenance dredging). IBPB8270R001F01_EIA REPORT.pdf:193:maintenance dredging. IBPB8270R001F01_EIA REPORT.pdf:193:Maintenance dredging of the approach channel and berth pocket (and the associated regular disturbance IBPB8270R001F01_EIA REPORT.pdf:197: Proposed dredge footprint IBPB8270R001F01_EIA REPORT.pdf:197: Advertised dredge depths IBPB8270R001F01_EIA REPORT.pdf:197: Advertised dredge depths IBPB8270R001F01_EIA REPORT.pdf:198:navigation within the Tees estuary. This potential arises due to the presence of the dredger within the IBPB8270R001F01_EIA REPORT.pdf:198:navigation channel, the need for pipelines to pump dredged material ashore from the dredger and the IBPB8270R001F01_EIA REPORT.pdf:198:focused on the area in the vicinity of the proposed terminal but the capital dredging will, at certain stages in IBPB8270R001F01_EIA REPORT.pdf:198:PDT would manage any potential conflicts in the same way as routine dredging and other construction IBPB8270R001F01_EIA REPORT.pdf:198:activities, through co-ordination via the Harbour Master. Management of dredging operations within a busy IBPB8270R001F01_EIA REPORT.pdf:203: • Capital dredging of the approach channel and berth pocket (and maintenance dredging during IBPB8270R001F01_EIA REPORT.pdf:203: • Disposal of dredged material. IBPB8270R001F01_EIA REPORT.pdf:203:dredging could impact potential archaeology that may be present. This includes the disturbance of IBPB8270R001F01_EIA REPORT.pdf:204:of the works remains, however, is considered to be low given that capital dredging required for the NGCT IBPB8270R001F01_EIA REPORT.pdf:204:project will take place within an existing dredged channel. IBPB8270R001F01_EIA REPORT.pdf:204:The construction of the deep-water berth and quay wall, and capital dredging, may impact as yet IBPB8270R001F01_EIA REPORT.pdf:204:ground investigations or geophysical surveys are carried out in advance of capital dredging within the IBPB8270R001F01_EIA REPORT.pdf:205: construction and capital dredging on the potential IBPB8270R001F01_EIA REPORT.pdf:207:use of dredged material on land. The material to be re-used within the reclamation (if required) and land- IBPB8270R001F01_EIA REPORT.pdf:207:generated if a significant volume of dredged material (containing high levels of organic matter) were to be IBPB8270R001F01_EIA REPORT.pdf:207:stockpiled on site for a significant duration of time. In reality, however, the dredged material to be used IBPB8270R001F01_EIA REPORT.pdf:207:8.7% within the proposed dredge footprint. The placement of sands and gravels with low percentages of IBPB8270R001F01_EIA REPORT.pdf:209:particularly associated with the presence of the dredger in various parts of the channel throughout the course IBPB8270R001F01_EIA REPORT.pdf:209:activity is during the dredging that will take place close to the mouth of the estuary where some sailing is IBPB8270R001F01_EIA REPORT.pdf:210:undertaken. However, given the limited duration of dredging in this area and particularly the fact that the IBPB8270R001F01_EIA REPORT.pdf:210:dredging would take place within an existing navigation channel that is heavily used by commercial shipping, IBPB8270R001F01_EIA REPORT.pdf:210:based recreational as far as practicable. The movements of the dredger and other water-based aspects of IBPB8270R001F01_EIA REPORT.pdf:210:Commercial vessels will be confined to navigating within the dredged channel (as at present) and IBPB8270R001F01_EIA REPORT.pdf:215:The present dredged approach channel in the Tees estuary is at a depth of 10.4m below CD (-13.25mOD) IBPB8270R001F01_EIA REPORT.pdf:221:of dredging the channel to the present declared depth account for approximately half of this impact. IBPB8270R001F01_EIA REPORT.pdf:221:capital dredging represent a minor change. Overall, a potential impact of minor adverse significance is IBPB8270R001F01_EIA REPORT.pdf:224: Proposed dredge footprint IBPB8270R001F01_EIA REPORT.pdf:225:pipeline and the GDF Suez pipelines are within the proposed dredge footprint, but outside of the construction IBPB8270R001F01_EIA REPORT.pdf:225:footprint for the container terminal. Pipe Tunnel No.1 is located upstream of the proposed dredge footprint. IBPB8270R001F01_EIA REPORT.pdf:225:The capital dredging, terminal construction and disposal of dredged material to land have the potential to IBPB8270R001F01_EIA REPORT.pdf:225:With respect to the capital dredging, the potential direct effect is limited to impacts on pipelines and cables IBPB8270R001F01_EIA REPORT.pdf:225:estuary. Pipe Tunnel No.1 is located outside of the footprint of the capital dredging (upstream), and IBPB8270R001F01_EIA REPORT.pdf:226:The capital dredging for the berthing pocket and approach channel would, however, pass over Pipe Tunnel IBPB8270R001F01_EIA REPORT.pdf:226:No.2. These pipelines are located at a minimum depth of 22.45m below CD; the maximum depth of dredging IBPB8270R001F01_EIA REPORT.pdf:226:is 16m below CD for the berthing pocket, and therefore, the dredge would have no direct impact on Pipe IBPB8270R001F01_EIA REPORT.pdf:226:the estuary and are, therefore, too deep to be affected by capital dredging. IBPB8270R001F01_EIA REPORT.pdf:226:a consequence of the terminal construction and capital dredging. IBPB8270R001F01_EIA REPORT.pdf:226:The proposed dredging, reclamation and piling activities have the potential to impact water quality by IBPB8270R001F01_EIA REPORT.pdf:226:than 5mg/l in the vicinity of the power station intake. In addition, since the proposed dredging is to occur IBPB8270R001F01_EIA REPORT.pdf:226:settled out of suspension in the immediate vicinity of the dredger (see Section 6 for further detail). No IBPB8270R001F01_EIA REPORT.pdf:226:The controls outlined in Section 7 (with regard to minimising sediment plume dispersion during dredging) IBPB8270R001F01_EIA REPORT.pdf:227:21.6.1 Potential impact on Infrastructure due to maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:227:maintenance dredging strategy and, therefore, no impact is predicted on Infrastructure as a result of the IBPB8270R001F01_EIA REPORT.pdf:227:proposed maintenance dredging. IBPB8270R001F01_EIA REPORT.pdf:227:flow is the same following the proposed channel dredging as at present, the prediction of no change in the IBPB8270R001F01_EIA REPORT.pdf:227:Since there is no requirement to change the existing maintenance dredging strategy following completion IBPB8270R001F01_EIA REPORT.pdf:227:of the dredge, no impact relating to increases in gross solids or fines, is predicted to occur on these IBPB8270R001F01_EIA REPORT.pdf:237:proposed dredge. IBPB8270R001F01_EIA REPORT.pdf:237: • Scope 1 GHGs associated with the consumption of diesel fuel by construction plant and dredgers IBPB8270R001F01_EIA REPORT.pdf:238:GHG emissions from construction plant and dredgers were estimated to be 7,335 tonnes of carbon dioxide IBPB8270R001F01_EIA REPORT.pdf:242:focusses on waste minimisation and the beneficial use of the dredged material. IBPB8270R001F01_EIA REPORT.pdf:242:24.2 Waste minimisation and beneficial use of dredged material IBPB8270R001F01_EIA REPORT.pdf:242:As noted in Section 3 of this report, the scheme will generate waste, primarily as a result of capital dredging IBPB8270R001F01_EIA REPORT.pdf:242:therefore, is not possible to deliver for the scheme. Section 3 considers beneficial uses of the dredged IBPB8270R001F01_EIA REPORT.pdf:242:volume of material to be dredged should be disposed offshore. A review of possible beneficial uses for the IBPB8270R001F01_EIA REPORT.pdf:243:24.3 Beneficial use of dredged material IBPB8270R001F01_EIA REPORT.pdf:243:24.3.1 Summary of disposal options for dredged material IBPB8270R001F01_EIA REPORT.pdf:243:A number of options for the disposal of dredged material that will be generated as a result of the scheme IBPB8270R001F01_EIA REPORT.pdf:243: • Disposal at the Former Leathers chemical works site at North Gare (i.e. using dredged material to IBPB8270R001F01_EIA REPORT.pdf:243:islands) could be created using the dredged material from Hartlepool channel. In terms of Hartlepool IBPB8270R001F01_EIA REPORT.pdf:243:suitable locations for the re-use of dredged sediment; three were located adjacent to the South Gare IBPB8270R001F01_EIA REPORT.pdf:243:Hartlepool channel scheme by beneficially re-using dredged material would be welcomed. IBPB8270R001F01_EIA REPORT.pdf:244:use of dredged sediment to create / enhance existing roost sites does represent a possible option. The IBPB8270R001F01_EIA REPORT.pdf:244:offshore disposal of all dredged material to ensure that the proposed scheme can proceed should the IBPB8270R001F01_EIA REPORT.pdf:244:development of bird islands not be possible at the point of undertaking the proposed dredge. IBPB8270R001F01_EIA REPORT.pdf:244:PDT will continue to investigate the option of creating bird islands using dredged material (including that to IBPB8270R001F01_EIA REPORT.pdf:244:Partnership. Such creation of bird islands at the mouth of the Tees (or any beneficial use of dredged material IBPB8270R001F01_EIA REPORT.pdf:244:in the marine environment) would require a separate marine licence application to deposit dredged material, IBPB8270R001F01_EIA REPORT.pdf:244:Although there are no immediately identifiable schemes which could utilise the dredged sediment that would IBPB8270R001F01_EIA REPORT.pdf:244:dredged material arising directly from the proposed NGCT, PDT is proposing to recharge the intertidal area IBPB8270R001F01_EIA REPORT.pdf:244:downstream of Newport Bridge with maintenance dredged silt as part of habitat improvement measures IBPB8270R001F01_EIA REPORT.pdf:244:Depending on the timescales, it may be possible to utilise some of the dredged material that will arise from IBPB8270R001F01_EIA REPORT.pdf:244:the NGCT dredge within the habitat enhancement works that are required in Bran Sands lagoon for the York IBPB8270R001F01_EIA REPORT.pdf:244:included within the scheme design (on the basis that there are no feasible beneficial uses of dredged IBPB8270R001F01_EIA REPORT.pdf:246:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL IBPB8270R001F01_EIA REPORT.pdf:246:The NGCT is predicted to generate up to 4.8 million m 3 of dredged material. Of this total, 970,000m3 is to IBPB8270R001F01_EIA REPORT.pdf:246:2.3 million m3 of dredged material in Bran Sands lagoon (which would reduce the volume of material required IBPB8270R001F01_EIA REPORT.pdf:246:for offshore disposal to 0.6 million m3). However, the disposal of dredged material in Bran Sands lagoon is IBPB8270R001F01_EIA REPORT.pdf:246:on a worst-case basis whereby approximately 3,830,000m3 of dredged material would be disposed offshore. IBPB8270R001F01_EIA REPORT.pdf:246:The majority of dredged material arising from the NGCT project will be disposed offshore at Tees Bay C IBPB8270R001F01_EIA REPORT.pdf:246:A (TY160). Both sites have historically been used for the disposal of both capital and maintenance dredged IBPB8270R001F01_EIA REPORT.pdf:246:material. In general, Tees Bay A is used for the disposal of maintenance dredged material, whilst Tees Bay IBPB8270R001F01_EIA REPORT.pdf:246:C is used for capital dredge arisings. IBPB8270R001F01_EIA REPORT.pdf:246:Bay C has been used for the disposal of both capital and maintenance dredged material. The disposal IBPB8270R001F01_EIA REPORT.pdf:247:PDT currently holds a 10-year licence (L/2015/00427/4) for the disposal of maintenance dredged material IBPB8270R001F01_EIA REPORT.pdf:247:with the marine licence conditions, the volume of maintenance dredged material disposed is recorded and IBPB8270R001F01_EIA REPORT.pdf:247:A zoned disposal plan has been operating since 2006 for the disposal of maintenance dredged material at IBPB8270R001F01_EIA REPORT.pdf:247:The annual volume of maintenance dredged material deposited within the Tees Bay offshore disposal sites IBPB8270R001F01_EIA REPORT.pdf:247:26.2.3 Modelling the dispersion of capital dredged material IBPB8270R001F01_EIA REPORT.pdf:247:capital dredged material arising from the NGCT project. Simulations have been undertaken for disposal IBPB8270R001F01_EIA REPORT.pdf:250:The modelling exercise has concluded that, in the context of the existing disposal of maintenance dredged IBPB8270R001F01_EIA REPORT.pdf:250:It is also concluded that the capital dredging will result in far lower rates of the introduction of fines into the IBPB8270R001F01_EIA REPORT.pdf:250:system to that which occurs during maintenance dredging and disposal. Therefore, the physical effects of IBPB8270R001F01_EIA REPORT.pdf:250:the material disposed at the site during the capital dredging for NGCT will be smaller. There will be some IBPB8270R001F01_EIA REPORT.pdf:250:In 2010, CEFAS undertook the ‘SLAB5’ dredged material disposal site sampling survey at a number of IBPB8270R001F01_EIA REPORT.pdf:253:The proposed disposal of dredged material within the Tees Bay C offshore disposal site has the potential to IBPB8270R001F01_EIA REPORT.pdf:253:of the Tees Bay C site due to disposal of dredged material. It has been demonstrated that the rate of IBPB8270R001F01_EIA REPORT.pdf:253:of maintenance dredged material and there will be a negligible effect on SSC outside of the boundary of the IBPB8270R001F01_EIA REPORT.pdf:253:fisheries due to the proposed deposition of dredged material at Tees Bay C. IBPB8270R001F01_EIA REPORT.pdf:256:The proposed disposal of dredged material at the Tees Bay C offshore disposal site would be significantly IBPB8270R001F01_EIA REPORT.pdf:256:arise from offshore disposal of dredged material IBPB8270R001F01_EIA REPORT.pdf:256:disposal site (an area which is designated specifically for the disposal of dredged material), however the IBPB8270R001F01_EIA REPORT.pdf:256:within the NGCT dredge footprint). IBPB8270R001F01_EIA REPORT.pdf:256:are within the areas which are subject to regular maintenance dredging by PDT, however are located outside IBPB8270R001F01_EIA REPORT.pdf:256:of the proposed dredge footprint for NGCT. The proposed dredging and offshore disposal required for the IBPB8270R001F01_EIA REPORT.pdf:257:hyperborean, should it colonise substrate within the proposed dredge footprint prior to the dredge taking IBPB8270R001F01_EIA REPORT.pdf:257:are not present at levels of concern within the Tees estuary. Maintenance dredged material from the Tees IBPB8270R001F01_EIA REPORT.pdf:257:a number of years. As a result, the disposal of dredged material within Tees Bay C would not introduce a IBPB8270R001F01_EIA REPORT.pdf:257:dredge disposal operations). Overall, the potential impact would be of negligible significance. IBPB8270R001F01_EIA REPORT.pdf:257:To undertake the disposal operation, the TSHD or disposal barges would transport dredged material from IBPB8270R001F01_EIA REPORT.pdf:257:the proposed dredge footprint to the Tees Bay C offshore disposal site. Consequently, there is potential for IBPB8270R001F01_EIA REPORT.pdf:257:The disposal operations are linked to the dredging task and would require regular movements of dredging IBPB8270R001F01_EIA REPORT.pdf:257:plant between the dredge site and the disposal site, via the navigation channel and the coastal waters of IBPB8270R001F01_EIA REPORT.pdf:257:dredged material offshore would be low (i.e. a TSHD and/or a barge), and no impact is predicted. IBPB8270R001F01_EIA REPORT.pdf:257:The proposed disposal of dredged material has the potential to result in shallowing of the water depth above IBPB8270R001F01_EIA REPORT.pdf:257:dredged material into the Tees Bay C site would result in no impact on navigation as a result of potential IBPB8270R001F01_EIA REPORT.pdf:257: and to what extent, dredged material accumulates at the disposal sites. IBPB8270R001F01_EIA REPORT.pdf:257: • The first survey would be undertaken immediately prior to disposal of dredged material, with a IBPB8270R001F01_EIA REPORT.pdf:260:Section 1 is 7th May 2028). As noted in Section 3, dredging the mudstone in the upper reach is predicted IBPB8270R001F01_EIA REPORT.pdf:260:to take approximately 33 weeks, whilst dredging of the granular material and clay is predicted to take IBPB8270R001F01_EIA REPORT.pdf:260:extent of the dredging and disposal plumes. IBPB8270R001F01_EIA REPORT.pdf:261: • Ongoing maintenance dredging (consented and ongoing). IBPB8270R001F01_EIA REPORT.pdf:261: • the disposal of dredged material. IBPB8270R001F01_EIA REPORT.pdf:262: • dredging up to 750,000m3 of material from the approach IBPB8270R001F01_EIA REPORT.pdf:262: • dredging up to 372,000m3 of material from the approach IBPB8270R001F01_EIA REPORT.pdf:263: In addition to the proposed dredge (and associated disposal of at Hartlepool are not predicted to extend into the Tees IBPB8270R001F01_EIA REPORT.pdf:263: dredged material), PDT is proposing to construct an underwater estuary), indicating no cumulative effect on hydrodynamics IBPB8270R001F01_EIA REPORT.pdf:263: being undermined following the proposed dredge. consideration of the Hartlepool channel scheme is therefore IBPB8270R001F01_EIA REPORT.pdf:263: time window, the existing channel will need to be dredged to - IBPB8270R001F01_EIA REPORT.pdf:263: 12mCD and the berths will be dredged to depths of up to -15mCD. It Screened out of CIA. IBPB8270R001F01_EIA REPORT.pdf:263: is estimated that the total capital dredge will be around 2Mm3. IBPB8270R001F01_EIA REPORT.pdf:263: activity, maintenance dredging and disposal is represented IBPB8270R001F01_EIA REPORT.pdf:263: maintenance dredge could be undertaken at the same time IBPB8270R001F01_EIA REPORT.pdf:263: as the capital dredging activity required for NGCT (albeit IBPB8270R001F01_EIA REPORT.pdf:263: dredging at Hartlepool This activity has been ongoing for many years. 0km granted for IBPB8270R001F01_EIA REPORT.pdf:263: Screened into the CIA (excluding maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:263: 1 and Dolphin D, and a dredge of the river bed dredge footprint IBPB8270R001F01_EIA REPORT.pdf:263: (with associated disposal of dredged material) to extend the existing IBPB8270R001F01_EIA REPORT.pdf:264: The Tees Channel Dredge project involves a proposed deepening of IBPB8270R001F01_EIA REPORT.pdf:264: Given that the dredge footprint largely overlaps with that for IBPB8270R001F01_EIA REPORT.pdf:264: NGCT (with the exception of dredging in Tees Dock, which, IBPB8270R001F01_EIA REPORT.pdf:264: system), the area would be dredged by either the NGCT IBPB8270R001F01_EIA REPORT.pdf:264: Tees Channel Dredge 0km project or the Tees Channel Dredge project (not both). This IBPB8270R001F01_EIA REPORT.pdf:264: Tees Channel Dredge overlaps largely with that of the upstream end date IBPB8270R001F01_EIA REPORT.pdf:264: Tees Channel Dredge project, therefore, has not been IBPB8270R001F01_EIA REPORT.pdf:264: of the NGCT channel dredge (with the exception of the proposed IBPB8270R001F01_EIA REPORT.pdf:264: dredge in Tees Dock proposed as part of the former). IBPB8270R001F01_EIA REPORT.pdf:264: • Dredging of the existing berth and disposal of dredged IBPB8270R001F01_EIA REPORT.pdf:266:Facilities and the ongoing maintenance dredging: IBPB8270R001F01_EIA REPORT.pdf:266: • dispersion of suspended sediment during capital dredging and deposition; IBPB8270R001F01_EIA REPORT.pdf:266:Dispersion of suspended sediment and deposition on the seabed during capital dredging IBPB8270R001F01_EIA REPORT.pdf:266:All projects scoped into the assessment will involve capital dredging. This activity will create a plume of IBPB8270R001F01_EIA REPORT.pdf:266:During the capital dredging works for the proposed NGCT, other port facilities on the Tees will remain IBPB8270R001F01_EIA REPORT.pdf:266:operational. Maintenance dredging is, therefore, expected to continue throughout the capital dredge period. IBPB8270R001F01_EIA REPORT.pdf:266:The capital dredge is also expected to influence the maintenance dredging requirements during and IBPB8270R001F01_EIA REPORT.pdf:266:However, dredging of the lower reaches of the river to remove sands driven into the mouth of the river, IBPB8270R001F01_EIA REPORT.pdf:266:represents the main maintenance dredging operation undertaken by PDT on the Tees. The capital dredging IBPB8270R001F01_EIA REPORT.pdf:266:also requires the dredging of sands from the lower reaches of the river, which are to be used in the IBPB8270R001F01_EIA REPORT.pdf:266:reclamation behind the new quay wall (assuming a closed quay is constructed). When capital dredging of IBPB8270R001F01_EIA REPORT.pdf:266:maintenance dredging. IBPB8270R001F01_EIA REPORT.pdf:267:As a consequence, PDT will use this opportunity to undertake maintenance dredging elsewhere, for IBPB8270R001F01_EIA REPORT.pdf:267:areas which are close to where the dredging for sands will be taking place for NGCT. If required, PDT will IBPB8270R001F01_EIA REPORT.pdf:267:mobilise their own dredger to keep these berths at their required depths. This requirement, however, is IBPB8270R001F01_EIA REPORT.pdf:267:unlikely to be significant. Nevertheless, the in-combination effects of the capital and maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:267:The extent of the sediment plume created by capital dredging is heavily dependent on the dredging plant IBPB8270R001F01_EIA REPORT.pdf:267:that is adopted, and this is determined by (amongst other factors) the nature of the bed and the dredge IBPB8270R001F01_EIA REPORT.pdf:267:volume. The EIAs have made informed assumptions about the most likely dredge plant that would be IBPB8270R001F01_EIA REPORT.pdf:267:adopted and, in some cases, assumed that different types of plant would be used for dredging different IBPB8270R001F01_EIA REPORT.pdf:267:sediment in the water column was predicted to be in close proximity to the dredger, with plume dispersion IBPB8270R001F01_EIA REPORT.pdf:267:Significant deposition of sediment was also only predicted in close proximity to the dredging (and IBPB8270R001F01_EIA REPORT.pdf:267:dredged as part of the capital works for each scheme. Beyond the immediate deposition footprint, significant IBPB8270R001F01_EIA REPORT.pdf:268: dredging in the Tees estuary, spring tide, low flow conditions IBPB8270R001F01_EIA REPORT.pdf:268:It should be noted that the potential for cumulative effects only arises should the dredging for the NGCT IBPB8270R001F01_EIA REPORT.pdf:268:In the main Tees Channel, the addition of maintenance dredging activity in the Seaton Channel turning circle IBPB8270R001F01_EIA REPORT.pdf:268:during the capital dredging for NGCT is not predicted to change either the peak concentration or deposition IBPB8270R001F01_EIA REPORT.pdf:268:away from the immediate area of the maintenance dredging. The overall footprint of the concentration and IBPB8270R001F01_EIA REPORT.pdf:269:deposition on Seal Sands is very similar to that for the capital dredge alone. However, the area of peak IBPB8270R001F01_EIA REPORT.pdf:269:concentration greater than 50ppm is increased by the inclusion of the maintenance dredging. IBPB8270R001F01_EIA REPORT.pdf:269:At the sensitive receivers, whilst the presence of the sediment released by the maintenance dredging is IBPB8270R001F01_EIA REPORT.pdf:269:to the capital dredging alone, but the resultant increases in deposition remain less than 0.1mm over the IBPB8270R001F01_EIA REPORT.pdf:269:similar, although the effect of the NGCT capital dredge is more extensive and extends into Seaton Channel IBPB8270R001F01_EIA REPORT.pdf:269:of very low magnitude. No intertidal sediment deposition is predicted during capital dredging for the York IBPB8270R001F01_EIA REPORT.pdf:269:capital dredging have been proposed for the York Potash Harbour facilities and the NGCT. For the former IBPB8270R001F01_EIA REPORT.pdf:269:project, mitigation comprises the use of specialist dredging equipment (i.e. an enclosed grab loading into a IBPB8270R001F01_EIA REPORT.pdf:269:sealed barge) for dredging of unconsolidated material to minimise resuspension in the water column. This IBPB8270R001F01_EIA REPORT.pdf:269:requirement is specified because of the elevated concentration of contaminants within the dredged IBPB8270R001F01_EIA REPORT.pdf:269:or water levels due to the limited area of proposed dredging for this project. Hence, no cumulative impacts IBPB8270R001F01_EIA REPORT.pdf:269:depth of the channel in the lower estuary that will arise from capital dredging for the NGCT. IBPB8270R001F01_EIA REPORT.pdf:270:dredging is predicted to draw some of the flow to the south side of the estuary, although such effects are IBPB8270R001F01_EIA REPORT.pdf:270:offshore; with the potential to increase the maintenance dredging requirements by approximately 10%. No IBPB8270R001F01_EIA REPORT.pdf:270:maintenance dredging, and no effect on sediment supply to intertidal areas throughout the Tees estuary will IBPB8270R001F01_EIA REPORT.pdf:270:The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine IBPB8270R001F01_EIA REPORT.pdf:270:material to Seal Sands. However, the latest annual update to the Maintenance Dredging Baseline IBPB8270R001F01_EIA REPORT.pdf:270:maintenance dredging regime could adversely affect the overall estuary morphology and the ongoing IBPB8270R001F01_EIA REPORT.pdf:271:Potential for cumulative increase in suspended sediment during capital and maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:271:A cumulative effect on water quality as a result of dredging induced sediment plume generation will only IBPB8270R001F01_EIA REPORT.pdf:271:occur should the dredging programme for the NGCT coincide with that of the York Potash Harbour Facilities. IBPB8270R001F01_EIA REPORT.pdf:271:is unlikely, therefore, that the timing of the projects and their respective programmes of capital dredging will IBPB8270R001F01_EIA REPORT.pdf:271:geological material within the dredge footprint for the consented York Potash Harbour Facilities was found IBPB8270R001F01_EIA REPORT.pdf:271:It is therefore concluded that if the above dredging projects were to coincide, there would be an increase in IBPB8270R001F01_EIA REPORT.pdf:271:nature of capital dredging, in addition to the intermittent nature of the peaks related to both tidal influence IBPB8270R001F01_EIA REPORT.pdf:271:and location of the dredger. Mitigation incorporated into each project (and enforced through the permissions IBPB8270R001F01_EIA REPORT.pdf:271:dredging and disposal of contaminated material. IBPB8270R001F01_EIA REPORT.pdf:271:The latest Tees estuary Maintenance Dredging Baseline Document (Royal HaskoningDHV, 2019) IBPB8270R001F01_EIA REPORT.pdf:271:concludes that, at water body level, maintenance dredging at current levels has no significant impact on IBPB8270R001F01_EIA REPORT.pdf:271:dredging and proposed capital dredging works was investigated as part of the NGCT studies. These IBPB8270R001F01_EIA REPORT.pdf:271:concluded that the combined effect of maintenance dredging being undertaken during the capital works will IBPB8270R001F01_EIA REPORT.pdf:271:not be significantly different from those predicted as a consequence of the capital dredging alone, and this IBPB8270R001F01_EIA REPORT.pdf:271:contaminants known to be present in sediments from the York Potash Harbour Facilities dredge footprint IBPB8270R001F01_EIA REPORT.pdf:271:dredging required for York Potash Harbour Facilities or ongoing maintenance dredging, with that required IBPB8270R001F01_EIA REPORT.pdf:272:Potential for cumulative water quality impact due to maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:272:It is necessary to include maintenance dredging in the CIA to assess whether the potential exists for the IBPB8270R001F01_EIA REPORT.pdf:272:NGCT to affect the nature of the ongoing maintenance dredge programme. The assessment presented in IBPB8270R001F01_EIA REPORT.pdf:272:Section 6 concludes that there will be requirement to change the current maintenance dredging strategy in IBPB8270R001F01_EIA REPORT.pdf:272:dredging for the NGCT scheme with the wider maintenance dredging programme in the Tees estuary, IBPB8270R001F01_EIA REPORT.pdf:272:intertidal area with maintenance dredged silt, thereby enhancing the ecological value of the intertidal area IBPB8270R001F01_EIA REPORT.pdf:273:capital dredging IBPB8270R001F01_EIA REPORT.pdf:273:largely similar; however the effect of the NGCT dredge is larger, with deposition predicted to extend into IBPB8270R001F01_EIA REPORT.pdf:273:Maintenance dredging is targeted at areas that require dredging to maintain navigable depths and, although IBPB8270R001F01_EIA REPORT.pdf:273:It is concluded that there will be no cumulative effect on the maintenance dredging commitment and, IBPB8270R001F01_EIA REPORT.pdf:274:dredging IBPB8270R001F01_EIA REPORT.pdf:274:due to a sediment plume during capital dredging), given that the waterbirds potentially affected would be IBPB8270R001F01_EIA REPORT.pdf:274:intertidal or subtidal areas given that there will be no effect on the maintenance dredging requirement due IBPB8270R001F01_EIA REPORT.pdf:275:Effects on fish populations due to a sediment plume during capital dredging IBPB8270R001F01_EIA REPORT.pdf:275:There is potential for the sediment plumes predicted to be generated by the dredging required for NGCT, IBPB8270R001F01_EIA REPORT.pdf:275:York Potash Harbour Facilities and maintenance dredging to interact (assuming the dredging for each is IBPB8270R001F01_EIA REPORT.pdf:275:dredging associated with these projects will result in an effect over a larger spatial extent than predicted for IBPB8270R001F01_EIA REPORT.pdf:275:dredge footprint will pass adjacent to the site of the York Potash Harbour Facilities. IBPB8270R001F01_EIA REPORT.pdf:276:27.5.8 Disposal of dredged material IBPB8270R001F01_EIA REPORT.pdf:276:The NGCT scheme involves the requirement to dispose of up to 3,830,000m3 of dredged material to be IBPB8270R001F01_EIA REPORT.pdf:276:forthcoming prior to the dredge taking place. Section 26 concludes that the disposal of dredged material IBPB8270R001F01_EIA REPORT.pdf:277:to the maintenance dredging strategy for the Tees estuary, maintenance dredging during the operational IBPB8270R001F01_EIA REPORT.pdf:277: • Hydromorphological impacts from capital dredging and the construction of a new quay. IBPB8270R001F01_EIA REPORT.pdf:277: • Effects on biological habitats from capital dredging (removal of habitat / sedimentation). IBPB8270R001F01_EIA REPORT.pdf:277: • Effects on fish due to the creation of a sediment plume from dredging. IBPB8270R001F01_EIA REPORT.pdf:277: • Effects on water quality due to the creation of a sediment plume from dredging. IBPB8270R001F01_EIA REPORT.pdf:277: • Effects of capital dredging on protected areas. IBPB8270R001F01_EIA REPORT.pdf:277: • Undertaking dredging operations using a TSHD in long strips along the axis of the estuary rather IBPB8270R001F01_EIA REPORT.pdf:277: than dredging along the width of the river. This is to reduce both the extent and impact of the IBPB8270R001F01_EIA REPORT.pdf:283: The site qualifies under Article 4 • Water quality reductions from dredging, IBPB8270R001F01_EIA REPORT.pdf:283: associated with offshore disposal of dredged IBPB8270R001F01_EIA REPORT.pdf:286: • dredging up to 750,000m3 of material from the approach time as the NGCT, in-combination effects IBPB8270R001F01_EIA REPORT.pdf:286: • dredging up to 372,000m3 of material from the approach loss of feeding grounds for pSPA and IBPB8270R001F01_EIA REPORT.pdf:287: The Tees Channel Dredge project involves a proposed deepening IBPB8270R001F01_EIA REPORT.pdf:287: The dredge footprint for NGCT overlaps IBPB8270R001F01_EIA REPORT.pdf:287: with the proposed Tees channel dredge. IBPB8270R001F01_EIA REPORT.pdf:287: for the Tees Channel Dredge; however, the environmental IBPB8270R001F01_EIA REPORT.pdf:287: undertaken. The footprint of the proposed Tees Channel Dredge IBPB8270R001F01_EIA REPORT.pdf:287: Dredge place Scoping process. However, it is 2016. IBPB8270R001F01_EIA REPORT.pdf:287: channel dredge (with the exception of the proposed dredge in IBPB8270R001F01_EIA REPORT.pdf:287: understood that the Tees Channel dredge IBPB8270R001F01_EIA REPORT.pdf:287: NGCT dredge go ahead first. IBPB8270R001F01_EIA REPORT.pdf:287: Given that the two dredge footprints largely overlap (with the IBPB8270R001F01_EIA REPORT.pdf:287: exception of dredging in Tees Dock, which, given its location, IBPB8270R001F01_EIA REPORT.pdf:287: dredged by either the NGCT project or the Tees Channel Dredge IBPB8270R001F01_EIA REPORT.pdf:288: concluded that any effects of the Tees channel dredge would be IBPB8270R001F01_EIA REPORT.pdf:288: maintenance dredging and disposal is IBPB8270R001F01_EIA REPORT.pdf:288: the area. Although maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:288: dredging works required for the proposed IBPB8270R001F01_EIA REPORT.pdf:288: maintenance granted by the dredging to occur elsewhere within the IBPB8270R001F01_EIA REPORT.pdf:288: dredging at This activity has been on-going for many years. 0km MMO for Tees which could result in in-combination IBPB8270R001F01_EIA REPORT.pdf:288: the Tees estuary disposal maintenance dredging at Hartlepool IBPB8270R001F01_EIA REPORT.pdf:288: PDT’s maintenance dredge disposal IBPB8270R001F01_EIA REPORT.pdf:289: window. In addition to the proposed dredge (and associated 5.5km and airborne noise and water quality IBPB8270R001F01_EIA REPORT.pdf:289: disposal of dredged material), PDT is proposing to construct an reductions, which may have the potential IBPB8270R001F01_EIA REPORT.pdf:290: involves minor ‘top-side’ works to the existing Infrastructure at the dredge considered to be of a sufficiently small IBPB8270R001F01_EIA REPORT.pdf:290: Jetty 1 and Dolphin D, and a dredge of the river bed footprint scale that there would be no significant in- IBPB8270R001F01_EIA REPORT.pdf:290: (with associated disposal of dredged material) to extend the combination effects with the proposed IBPB8270R001F01_EIA REPORT.pdf:290: be dredged to -12mCD and the berths will be dredged to depths of date. IBPB8270R001F01_EIA REPORT.pdf:290: up to -15mCD. It is estimated that the total capital dredge will be IBPB8270R001F01_EIA REPORT.pdf:291: • Indirect impacts on foraging behaviour due to impacts on prey resource from to capital dredging IBPB8270R001F01_EIA REPORT.pdf:291:assessment. Impacts associated with the offshore disposal of dredged material are also screened out. IBPB8270R001F01_EIA REPORT.pdf:291: • Maintenance dredging. IBPB8270R001F01_EIA REPORT.pdf:294:proposed dredged trenches at the edges of the channel. IBPB8270R001F01_EIA REPORT.pdf:294:swell height of 6m (return period of 1 in 1 year) will be reflected on the side of the dredged channel and IBPB8270R001F01_EIA REPORT.pdf:294:Changes to the cross-sectional area of an estuary due to capital dredging and reclamation can influence IBPB8270R001F01_EIA REPORT.pdf:295:29.5.5 Disturbance of the subtidal resource due to capital dredging IBPB8270R001F01_EIA REPORT.pdf:295:The capital dredging required for the NGCT will result in the disturbance to 120ha of subtidal within the IBPB8270R001F01_EIA REPORT.pdf:296:existing navigation channel and, therefore, is already dredged on a regular basis to maintain the advertised IBPB8270R001F01_EIA REPORT.pdf:296:dredge depth. This area has been subject to ongoing maintenance dredging for a number of years and was IBPB8270R001F01_EIA REPORT.pdf:296:subject to disturbance from maintenance dredging when Natural England proposed the revision to the IBPB8270R001F01_EIA REPORT.pdf:296:of species and appears to show signs of disturbance. Following completion of the NGCT capital dredge, IBPB8270R001F01_EIA REPORT.pdf:296:dredging, leads to the conclusion that the capital dredging of the channel for NGCT will not result in an IBPB8270R001F01_EIA REPORT.pdf:296:operations (as well as the dredging and construction activities) will be for fish to move away from the source. IBPB8270R001F01_EIA REPORT.pdf:298:indirectly impact on foraging behaviour for birds. As reported in Section 7, the sediment to be dredged does IBPB8270R001F01_EIA REPORT.pdf:298:immediate vicinity of the dredger). Therefore, it is predicated that the impacts beyond the immediate vicinity IBPB8270R001F01_EIA REPORT.pdf:298:of the dredger would be negligible in terms of reductions in foraging ability, as the predicted increases in IBPB8270R001F01_EIA REPORT.pdf:298:returning to background levels relatively quickly following completion of the dredge. Terns are considered IBPB8270R001F01_EIA REPORT.pdf:298:Given the duration of the proposed dredge (up to 33 weeks for mudstone and between four and 11 weeks IBPB8270R001F01_EIA REPORT.pdf:298:the immediate vicinity of the dredger. This would in fact lead to a marginal increase in density in the areas IBPB8270R001F01_EIA REPORT.pdf:298:occurrence of daily maintenance dredging already occurring in this area suggest that alternative areas for IBPB8270R001F01_EIA REPORT.pdf:298:the axis of the estuary, rather than dredging across the width of the river. This will reduce both the extent IBPB8270R001F01_EIA REPORT.pdf:299:and impact of the dredged plume, as any plume generated by operations has been predicted (by HR IBPB8270R001F01_EIA REPORT.pdf:299:Wallingford during 2006) to remain on the same side of the river as the dredging operation. IBPB8270R001F01_EIA REPORT.pdf:299:This methodology will ensure that a completed strip of the river is clear before the dredger is deployed to IBPB8270R001F01_EIA REPORT.pdf:299:Mitigation of the plume effects by reducing the size of the dredger, and thus reducing the rate of overflow, IBPB8270R001F01_EIA REPORT.pdf:299:is not viable since the size of dredger has to be sufficient to carry a large enough drag head and to have IBPB8270R001F01_EIA REPORT.pdf:299:sufficient propulsion power to undertake the required dredging operation. IBPB8270R001F01_EIA REPORT.pdf:299:the shallower waters. Mitigation of the suspended sediment generated by reducing the size of the dredger, IBPB8270R001F01_EIA REPORT.pdf:299:and thus reducing the rate of overflow, will not be possible as a smaller dredger would have insufficient IBPB8270R001F01_EIA REPORT.pdf:300: • Effects on marine water quality during dredging. IBPB8270R001F01_EIA REPORT.pdf:301:Facilities ES (which considered the NGCT and ongoing maintenance dredging). Consequently, it is IBPB8270R001F01_EIA REPORT.pdf:301:approximately 3km distant from the boundary of the pSPA. Maintenance dredging is also not considered IBPB8270R001F01_EIA REPORT.pdf:302: maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:302:combination effects are those that would require capital and maintenance dredging. Such projects comprise IBPB8270R001F01_EIA REPORT.pdf:302:the York Potash Harbour Facilities, ongoing maintenance dredging, Dogger Bank A and B and Hartlepool IBPB8270R001F01_EIA REPORT.pdf:302:An interaction between the sediment plumes predicted to be generated by capital dredging associated with IBPB8270R001F01_EIA REPORT.pdf:302:consented projects in the Tees estuary (and at Hartlepool) would only occur should the dredging IBPB8270R001F01_EIA REPORT.pdf:302:programmes of each scheme overlap (which is considered unlikely). If the dredge programmes do overlap, IBPB8270R001F01_EIA REPORT.pdf:302:alone, but within the same predicted spatial extent of the plume for NGCT (as the NGCT dredge footprint IBPB8270R001F01_EIA REPORT.pdf:302:In addition to the above impact, capital dredging has the potential to disturb fish by smothering feeding IBPB8270R001F01_EIA REPORT.pdf:302:NGCT and the York Potash Harbour Facilities are similar, although the effect of NGCT capital dredging is IBPB8270R001F01_EIA REPORT.pdf:302:of the York Potash Harbour Facilities dredge, and therefore there is no potential for an in-combination effect IBPB8270R001F01_EIA REPORT.pdf:302:only in close proximity to the dredging (and reclamation) over the slack water period. In practice, much of IBPB8270R001F01_EIA REPORT.pdf:302:this deposited material would be re-dredged as part of the capital works. The magnitude of deposition IBPB8270R001F01_EIA REPORT.pdf:302:The potential in-combination impact between maintenance dredging and proposed capital dredging works IBPB8270R001F01_EIA REPORT.pdf:302:combined effect of maintenance dredging during the capital works is not significantly different from that IBPB8270R001F01_EIA REPORT.pdf:302:predicted as a consequence of the NGCT capital dredging alone. However, in practice, it is likely that IBPB8270R001F01_EIA REPORT.pdf:302:maintenance dredging in the wider estuary will not be undertaken during a significant capital dredge; this IBPB8270R001F01_EIA REPORT.pdf:303:Potash Harbour Facilities (i.e. use of an enclosed grab for dredge contaminated sediments) would remove IBPB8270R001F01_EIA REPORT.pdf:303:capital dredging required for NGCT is predicted to result in an increase in SSC, which has potential to result IBPB8270R001F01_EIA REPORT.pdf:303:estuary (in the order of 25mg/l increase outside of the immediate vicinity of the dredger). As noted in Section IBPB8270R001F01_EIA REPORT.pdf:303:following completion of the dredge. Terns are considered likely to be able to continue feeding effectively IBPB8270R001F01_EIA REPORT.pdf:303:with any effect confined to the footprint of the proposed dredge. The predicted increase in suspended IBPB8270R001F01_EIA REPORT.pdf:303:impact dissipating within 10 minutes following completion of the dredge. It was therefore concluded that an IBPB8270R001F01_EIA REPORT.pdf:304:Facility. The ongoing maintenance dredging is also not considered here as this forms part of the baseline IBPB8270R001F01_EIA REPORT.pdf:305:subject to maintenance dredging and offshore disposal as part of ongoing maintenance dredging. Predicted IBPB8270R001F01_EIA REPORT.pdf:306:Rumney, H., Barber, J., Rance, J., McIlwaine, P. & Law, R.L.J. 2011. Dredged Material Disposal Site IBPB8270R001F01_EIA REPORT.pdf:306:Cefas, 2010. Use of Action Levels in Dredged Material Assessments. IBPB8270R001F01_EIA REPORT.pdf:307:Royal Haskoning, 2008. Tees Maintenance Dredge Baseline Document IBPB8270R001F01_EIA REPORT.pdf:307:Royal Haskoning, 2011. Tees Dock No. 1 Quay – revised scope for EIA in relation to capital dredging IBPB8270R001F01_EIA REPORT.pdf:308:Royal HaskoningDHV, 2017. Tees Maintenance Dredging Annual Review 2016. IBPB8270R001F01_EIA REPORT.pdf:316:(24) The Northern Gateway Container Terminal: Dredging Protocol (PD Teesport, IBPB8270R001F01_EIA REPORT.pdf:316:2007 will be implemented in full during the period of capital dredging operations. IBPB8270R001F01_EIA REPORT.pdf:317:This will entail the submission of a dredging programme to the relevant statutory IBPB8270R001F01_EIA REPORT.pdf:317:concentrations during capital dredging activities will be agreed with the Local IBPB8270R001F01_EIA REPORT.pdf:318:sediment monitoring during dredging/construction has been submitted to and IBPB8270R001F01_EIA REPORT.pdf:321: dredging, construction of a new quay wall, reclamation and IBPB8270R001F01_EIA REPORT.pdf:321: modifications and the disposal of dredged material. IBPB8270R001F01_EIA REPORT.pdf:321: maintenance dredge depth, volume and/or frequency and IBPB8270R001F01_EIA REPORT.pdf:321: the maintenance dredging commitment is not foreseen, SR IBPB8270R001F01_EIA REPORT.pdf:321: Maintenance Dredging licence then a variation may be IBPB8270R001F01_EIA REPORT.pdf:323: year round maintenance dredging activities. SR IBPB8270R001F01_EIA REPORT.pdf:324: 5.8 Offshore disposal of dredged material IBPB8270R001F01_EIA REPORT.pdf:328:of dredged site, other than the landside elements that have commenced, as IBPB8270R001F01_EIA REPORT.pdf:328:material a result of reusing dredged material, may require an IBPB8270R001F01_EIA REPORT.pdf:328: of dredging materials may be found on the GOV website, while IBPB8270R001F01_EIA REPORT.pdf:328: storage and re-use of dredged material, while the land raising IBPB8270R001F01_EIA REPORT.pdf:329:sediment quality samples and analysis of the dredge material may be required to IBPB8270R001F01_EIA REPORT.pdf:329: disposal of the dredged material. IBPB8270R001F01_EIA REPORT.pdf:332: aim is to undertake the dredging in advance using its own equipment, IBPB8270R001F01_EIA REPORT.pdf:333: creation using dredged material from the Hartlepool channel scheme IBPB8270R001F01_EIA REPORT.pdf:333: around the beneficial use of dredged sediment as it is not always IBPB8270R001F01_EIA REPORT.pdf:334: construction rather than the dredge given that the former would result IBPB8270R001F01_EIA REPORT.pdf:335: A discussion was held around seasonal restrictions on the dredging IBPB8270R001F01_EIA REPORT.pdf:335: with no restrictions, and maintenance dredging is undertaken on a IBPB8270R001F01_EIA REPORT.pdf:336: Offshore disposal of dredged material: IBPB8270R001F01_EIA REPORT.pdf:338: have also been required to commission a maintenance dredging baseline IBPB8270R001F01_EIA REPORT.pdf:338: and deepening by dredging, the current depth at the mouth is about double this IBPB8270R001F01_EIA REPORT.pdf:338: natural level. Dredging and training works have occurred since the IBPB8270R001F01_EIA REPORT.pdf:338: establishment of the first dredged channel of 4.3m from Middlesbrough Docks to IBPB8270R001F01_EIA REPORT.pdf:338: the sea after 1853. The present dredged channel has declared depths of 15.4m IBPB8270R001F01_EIA REPORT.pdf:339: channel now declared at 14.1m below CD were originally dredged to a deeper IBPB8270R001F01_EIA REPORT.pdf:339: depth. The present channel has a backlog of maintenance dredging and some IBPB8270R001F01_EIA REPORT.pdf:339: dredgings IBPB8270R001F01_EIA REPORT.pdf:339: cost of disposal of maintenance dredged material IBPB8270R001F01_EIA REPORT.pdf:343: by dredging operations. These last two were postulated by HR Wallingford IBPB8270R001F01_EIA REPORT.pdf:343: 6. Comparison of the above figures with the present knowledge of the dredging IBPB8270R001F01_EIA REPORT.pdf:344: chart areas used by PD Teesport to manage their maintenance dredging activity. IBPB8270R001F01_EIA REPORT.pdf:344: 8. The most recent evidence for types of maintenance dredging material from PD IBPB8270R001F01_EIA REPORT.pdf:344: Teesport (pers. comm.) suggests that out of the 1.35 million m3 dredged IBPB8270R001F01_EIA REPORT.pdf:344:Figure 6.2 Bed types of material dredged in 1991 IBPB8270R001F01_EIA REPORT.pdf:344: dredging have resulted in an estuary that is essentially a narrow ‘canalised’ IBPB8270R001F01_EIA REPORT.pdf:345:6.3.1 Dispersion of material during capital dredging IBPB8270R001F01_EIA REPORT.pdf:345: 1. PD Teesport commissioned Dredging Research Ltd (DRL) to undertake a study IBPB8270R001F01_EIA REPORT.pdf:345: of available dredging methods for the capital dredging. DRL were also IBPB8270R001F01_EIA REPORT.pdf:345: the studies on the dispersion of the sediment plume arising during dredging, as IBPB8270R001F01_EIA REPORT.pdf:345: a) There are three potential types of dredger that might be used in the works. IBPB8270R001F01_EIA REPORT.pdf:345: These are the Cutter Suction Dredger (CSD), the Trailing Suction Hopper IBPB8270R001F01_EIA REPORT.pdf:345: Dredger (TSHD) and the Backhoe Dredger (BD). All have their advantages and IBPB8270R001F01_EIA REPORT.pdf:345: disadvantages for dealing with separate zones of dredging. IBPB8270R001F01_EIA REPORT.pdf:345: b) Taking the entire dredging requirement into consideration, it is probable that IBPB8270R001F01_EIA REPORT.pdf:345: c) The choice of dredger will depend to a great extent on the location of the IBPB8270R001F01_EIA REPORT.pdf:345: material to be dredged, its strength and thickness, and the impact of the IBPB8270R001F01_EIA REPORT.pdf:345: types of dredgers will also play a significant role in making this choice. IBPB8270R001F01_EIA REPORT.pdf:345: d) Losses of suspended sediment are inevitable at the dredging face or draghead, IBPB8270R001F01_EIA REPORT.pdf:345: order of magnitude greater than those occurring at the dredging face or IBPB8270R001F01_EIA REPORT.pdf:345: and THSDs in these conditions. Hence, the choice of dredger type is unlikely to IBPB8270R001F01_EIA REPORT.pdf:345: not possible due to the fact that smaller dredgers would be ineffective in the IBPB8270R001F01_EIA REPORT.pdf:345: stronger materials to be dredged. IBPB8270R001F01_EIA REPORT.pdf:345: 3. Of the three types of dredger that might be used, the BD has a working rate that IBPB8270R001F01_EIA REPORT.pdf:345: above, the BD would only be used for a very limited proportion of the dredging. IBPB8270R001F01_EIA REPORT.pdf:345: 4. The TSHD sails up and down a section of the area to be dredged sucking up a IBPB8270R001F01_EIA REPORT.pdf:345: into a hopper on the dredger. The proportion of sediment loaded into the hopper IBPB8270R001F01_EIA REPORT.pdf:345: can be increased by continuing to dredge after the hopper is initially filled with a IBPB8270R001F01_EIA REPORT.pdf:346: dredger draghead and so it is the only sediment source considered for sediment IBPB8270R001F01_EIA REPORT.pdf:346: (and water) is sucked to the dredger before being discharged either ashore or IBPB8270R001F01_EIA REPORT.pdf:346: by continuing to dredge after the plant is filled with the overspill resulting in IBPB8270R001F01_EIA REPORT.pdf:346: source of fine sediment released along the path of the dredging activity (i.e. in IBPB8270R001F01_EIA REPORT.pdf:346: 6. It is proposed that a TSHD will be used for the dredging and reclamation of IBPB8270R001F01_EIA REPORT.pdf:346: the dredging of the mudstone (approximately 3.8 million m3). If mudstone is to IBPB8270R001F01_EIA REPORT.pdf:346:Cutter Suction Dredger IBPB8270R001F01_EIA REPORT.pdf:347:Trailing Suction Hopper Dredger (6,000m3 capacity) IBPB8270R001F01_EIA REPORT.pdf:347:Dredge cycle time = 190 mins IBPB8270R001F01_EIA REPORT.pdf:347:Total dredge time = 60 mins IBPB8270R001F01_EIA REPORT.pdf:347:Speed of dredger when dredging = 0.75 m/s (1.5 knots) IBPB8270R001F01_EIA REPORT.pdf:347: three dredging scenarios. Two of these scenarios represented a CSD loading IBPB8270R001F01_EIA REPORT.pdf:347: the flood tide. Overflow for one hour during the dredging was represented along IBPB8270R001F01_EIA REPORT.pdf:347: the dredgers and barge overflow releasing material into the bottom metre of the IBPB8270R001F01_EIA REPORT.pdf:348: Dredge locations for cutter IBPB8270R001F01_EIA REPORT.pdf:348: Dredge locations for trailer 1 2 IBPB8270R001F01_EIA REPORT.pdf:348:Figure 6.3 Simulated dredge locations for CSD and THDS and ‘sensitive’ IBPB8270R001F01_EIA REPORT.pdf:349:Implications of dredging using a cutter suction dredger IBPB8270R001F01_EIA REPORT.pdf:349: 12. For all the dredger simulations, the largest rise in peak concentrations and IBPB8270R001F01_EIA REPORT.pdf:349: deposition were in the immediate vicinity of the dredger, centred either at the IBPB8270R001F01_EIA REPORT.pdf:349: dredger track. Figures 6.4 to 6.5 show the results from the simulation of the IBPB8270R001F01_EIA REPORT.pdf:349: deposition on the seabed arising from dredging at the two upstream locations. IBPB8270R001F01_EIA REPORT.pdf:350:Figure 6.4 Peak concentration and peak deposition for cutter suction dredger IBPB8270R001F01_EIA REPORT.pdf:351:Figure 6.5 Peak concentration and peak deposition for cutter suction dredger IBPB8270R001F01_EIA REPORT.pdf:352: to the barge loading site when dredging the Tees Dock turning circle (Figure IBPB8270R001F01_EIA REPORT.pdf:352: 6.4). When dredging the area adjacent to the proposed reclamation, peak IBPB8270R001F01_EIA REPORT.pdf:352: deposition in the immediate vicinity of the dredging activity (Figure 6.5). It IBPB8270R001F01_EIA REPORT.pdf:352: footprint of the dredging and/or reclamation and as such it would be re-dredged IBPB8270R001F01_EIA REPORT.pdf:352: or would deposit within an area which has already been dredged. IBPB8270R001F01_EIA REPORT.pdf:352: 16. In the CSD scenarios simulated, the dredging of mudstone (with a single CSD) IBPB8270R001F01_EIA REPORT.pdf:352: redredged as part of the capital works or subsequent maintenance dredging and IBPB8270R001F01_EIA REPORT.pdf:352:Implications of dredging using a trailing suction hopper dredger IBPB8270R001F01_EIA REPORT.pdf:352: 17. For spring tide conditions with low freshwater flow, the effect of dredging sandy IBPB8270R001F01_EIA REPORT.pdf:352: between 500mg/l and 1000mg/l occur along the dredger track and in the vicinity IBPB8270R001F01_EIA REPORT.pdf:352: simulated) (see Figure 6.7). The effect of dredging in the approach channel on IBPB8270R001F01_EIA REPORT.pdf:353: 18. In the scenario simulated, the dredging of sand will take about 30 days. The IBPB8270R001F01_EIA REPORT.pdf:353: 400,000m3. This material would need to be redredged as part of the capital IBPB8270R001F01_EIA REPORT.pdf:353: works or subsequent maintenance dredging and disposed offshore. Some IBPB8270R001F01_EIA REPORT.pdf:354:Figure 6.6 Peak concentration and deposition for TSHD dredging sand in the IBPB8270R001F01_EIA REPORT.pdf:355: and Seal Sands (Locations 3 and 4) for TSHD dredging sand in the IBPB8270R001F01_EIA REPORT.pdf:356: 2) and Seal Sands (Locations 3 and 4) for TSHD dredging sand in IBPB8270R001F01_EIA REPORT.pdf:357: TSHD dredging sand in approach channel, spring tide low flow IBPB8270R001F01_EIA REPORT.pdf:366: presence of the proposed channel dredging and reclamation. The model was IBPB8270R001F01_EIA REPORT.pdf:370: of the proposed dredged side trenches in the area upstream of Redcar. IBPB8270R001F01_EIA REPORT.pdf:372: dredged trenches at the edges of the channel. IBPB8270R001F01_EIA REPORT.pdf:373: height of 10cm. This pattern would not be altered by the presence of dredged IBPB8270R001F01_EIA REPORT.pdf:374: side of the dredged channel and reach the area around the ConocoPhillips Oil IBPB8270R001F01_EIA REPORT.pdf:374: by the inclusion of dredged side trenches in the channel upstream of Redcar as IBPB8270R001F01_EIA REPORT.pdf:375: fact that there is presently a backlog of maintenance dredging at this location in IBPB8270R001F01_EIA REPORT.pdf:375: channel. PD Teesport could dredge to 14.1m below CD at this location at IBPB8270R001F01_EIA REPORT.pdf:376: recorded dredging volumes for the outer areas of the navigation channel (areas IBPB8270R001F01_EIA REPORT.pdf:376: in the dredged areas will be largely unchanged by the development and hence IBPB8270R001F01_EIA REPORT.pdf:376: dredged are of the order of 20-25% of the total accumulation (PDT, pers. IBPB8270R001F01_EIA REPORT.pdf:376: potential for effect on the maintenance dredging requirement in the estuary and IBPB8270R001F01_EIA REPORT.pdf:376: resuspension and upstream movement as a result of agitation by dredging IBPB8270R001F01_EIA REPORT.pdf:377: fluvial sources). This total is of the right order compared to in situ dredged IBPB8270R001F01_EIA REPORT.pdf:378: the proposed capital dredge introduces only minor changes to the existing IBPB8270R001F01_EIA REPORT.pdf:379: 12. The dredging will increase the bed slope outside the entrance to Dabholm Gut IBPB8270R001F01_EIA REPORT.pdf:380: of fine material with the potential to increase the maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:380: fine material removed by maintenance dredging operations from the turning IBPB8270R001F01_EIA REPORT.pdf:381: from dredger operations). IBPB8270R001F01_EIA REPORT.pdf:381: • Short term deposition during dredging operations (up to 3% of material dredged IBPB8270R001F01_EIA REPORT.pdf:381: turning area if the new dredged side slopes need to adjust themselves to reach IBPB8270R001F01_EIA REPORT.pdf:382: channel dredging was amended in order to ensure that no adverse effect would IBPB8270R001F01_EIA REPORT.pdf:382: • Redesigning the deepened Seaton Channel turning circle to avoid dredging IBPB8270R001F01_EIA REPORT.pdf:382: capital dredging in the lower channel and run for spring tide conditions under IBPB8270R001F01_EIA REPORT.pdf:382: dredging in the lower channel (i.e. not the effect of the channel dredging in total; IBPB8270R001F01_EIA REPORT.pdf:383: proposed capital dredging are not affected by the proposed minor changes to IBPB8270R001F01_EIA REPORT.pdf:384: capital dredging in the lower channel on peak current speeds at IBPB8270R001F01_EIA REPORT.pdf:385: capital dredging in the lower channel on peak current speeds at IBPB8270R001F01_EIA REPORT.pdf:386: capital dredging in the lower channel on depth-averaged tidal IBPB8270R001F01_EIA REPORT.pdf:388:licence (L/2015/00427/1) for maintenance dredging within the Tees estuary; this condition requires PDT IBPB8270R001F01_EIA REPORT.pdf:388:to collect and analyse sediment samples from the dredge area every three years. As well as confirming IBPB8270R001F01_EIA REPORT.pdf:389: • Capital dredging within the existing dredged approach channel. IBPB8270R001F01_EIA REPORT.pdf:389: • Capital dredging of deep water berthing areas alongside the proposed quay face (dredged to IBPB8270R001F01_EIA REPORT.pdf:389: • Pumping suitable dredged material ashore for use in the reclamation works and for locally raising IBPB8270R001F01_EIA REPORT.pdf:389: • Disposal of the balance of the capital dredged material at existing offshore disposal grounds in IBPB8270R001F01_EIA REPORT.pdf:389: Although currently dredged to 10.4m bCD, some further highly localised dredging will be required IBPB8270R001F01_EIA REPORT.pdf:389:Further detail regarding the dredge, disposal and construction activities is provided below: IBPB8270R001F01_EIA REPORT.pdf:389: 3.1. Dredging IBPB8270R001F01_EIA REPORT.pdf:389:Table 1 provides a summary of the current and design dredge depths to be achieved as part of the IBPB8270R001F01_EIA REPORT.pdf:389:Table 1 Current and design dredge depths for the NGCT IBPB8270R001F01_EIA REPORT.pdf:389: depth (m bCD) depth (m bCD) to be dredged (Mm3) IBPB8270R001F01_EIA REPORT.pdf:390:Figure 1 Dredge areas for the NGCT (the small scale and localised dredging at QEII Berth required for relocation of the Riverside IBPB8270R001F01_EIA REPORT.pdf:391:The total volume of material that will arise from the capital dredging will be approximately 4.8 million m3. IBPB8270R001F01_EIA REPORT.pdf:391:Based on previous investigations and capital dredging in the estuary, it is expected that, broadly, three IBPB8270R001F01_EIA REPORT.pdf:391:material types would be dredged; silts and soft alluvial deposits, Mercia mudstone (boulder clay) and IBPB8270R001F01_EIA REPORT.pdf:391:because the channel and Seaton Channel turning circle have previously been dredged to a greater depth IBPB8270R001F01_EIA REPORT.pdf:391:dredging in this area with some parts of the channel at depths above 14.1m below CD. There is also IBPB8270R001F01_EIA REPORT.pdf:391:encountered. The total volume of silts and alluvial deposits to be dredged is expected to be small relative IBPB8270R001F01_EIA REPORT.pdf:391:to the overall volume of the dredge given that the channel is already subject to maintenance dredging. IBPB8270R001F01_EIA REPORT.pdf:391:It is anticipated that dredging works will be divided into two phases as follows; IBPB8270R001F01_EIA REPORT.pdf:391: hopper dredger (TSHD). IBPB8270R001F01_EIA REPORT.pdf:391: • Phase 2: the removal of mudstone using a cutter suction dredger (CSD) loading into hopper IBPB8270R001F01_EIA REPORT.pdf:391: barges. As part of this phase, 20m wide, 1m deep trenches would be dredged on the inside of IBPB8270R001F01_EIA REPORT.pdf:391: the edge of the dredged channel in the area upstream of Redcar in areas where there is not an IBPB8270R001F01_EIA REPORT.pdf:391: existing dredged berth pocket. The purpose of these trenches is to allow maintenance material IBPB8270R001F01_EIA REPORT.pdf:391:Due to the high production rates required for the deepening, the vast majority of the dredging would, as IBPB8270R001F01_EIA REPORT.pdf:391:backhoe dredger (BD) for small areas of dredging in confined areas, for example, alongside the existing IBPB8270R001F01_EIA REPORT.pdf:391:Maintenance dredging will be required during the operational. As a result of the NGCT, it is predicted IBPB8270R001F01_EIA REPORT.pdf:391:that there will not be a requirement to adjust the maintenance dredging strategy (e.g. the annual volume IBPB8270R001F01_EIA REPORT.pdf:391:dredged is not predicted to change significantly beyond the existing variability in maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:391: 3.2. Disposal of dredged material IBPB8270R001F01_EIA REPORT.pdf:391:It is anticipated that all the granular material arising from the dredging would be used within the IBPB8270R001F01_EIA REPORT.pdf:391:arise from routine maintenance dredging. A total of approximately 1.9 million m3 of material would be IBPB8270R001F01_EIA REPORT.pdf:391:Opportunities for the beneficial re-use of dredged material (in addition to use in reclamation) will be IBPB8270R001F01_EIA REPORT.pdf:392:currently dredged to 10.4m bCD. IBPB8270R001F01_EIA REPORT.pdf:392: • Although currently dredged to 10.4m bCD, some further highly localised dredging will be required IBPB8270R001F01_EIA REPORT.pdf:392:including Abra alba, were also present at locations within the dredged channel. The infaunal community IBPB8270R001F01_EIA REPORT.pdf:392:largely made up of opportunistic species which colonise the area in between maintenance dredging IBPB8270R001F01_EIA REPORT.pdf:392:programmes. At near-shore and undredged locations, the opportunistic Ophryotrocha sp. and Capitella IBPB8270R001F01_EIA REPORT.pdf:395:of grab samples at two stations within the proposed dredge footprint for QEII. Data from the survey were IBPB8270R001F01_EIA REPORT.pdf:396:be sampled due to recent dredging activity over one site and restricted tidal accessibility to the other. IBPB8270R001F01_EIA REPORT.pdf:396:to deposition of sediment that will be disturbed during the capital dredging (giving a total of 13 sampling IBPB8270R001F01_EIA REPORT.pdf:398: Maintenance dredge footprint in the Tees estuary IBPB8270R001F01_EIA REPORT.pdf:398: NGCT dredge footprint IBPB8270R001F01_EIA REPORT.pdf:398: Indicative dredge footprint for QEII Berth Development IBPB8270R001F01_EIA REPORT.pdf:398: Trafigura dredge footprint IBPB8270R001F01_EIA REPORT.pdf:398: ! Sediment Sample Locations in Trafigura dredge footprint IBPB8270R001F01_EIA REPORT.pdf:399:order to characterise the area that was proposed to be dredged as part of the QEII Berth project. Two IBPB8270R001F01_EIA REPORT.pdf:400:the Mercia mudstone constituent of the proposed dredge was licensed for offshore disposal. The marine IBPB8270R001F01_EIA REPORT.pdf:400:licence states that the unconsolidated deposits need to be dredged using an enclosed grab, loading into IBPB8270R001F01_EIA REPORT.pdf:401:be subject to dredging for the NGCT). Samples were recovered from a maximum depth of 1.6m below IBPB8270R001F01_EIA REPORT.pdf:401:Maintenance dredging sampling IBPB8270R001F01_EIA REPORT.pdf:401:of its 10 year licence for disposal of maintenance dredged arisings from the Tees estuary. PDT has IBPB8270R001F01_EIA REPORT.pdf:401:recently submitted a sampling plan request for the Hartlepool channel project (capital dredge) and mid- IBPB8270R001F01_EIA REPORT.pdf:401:licence sampling for its maintenance dredge source area at Hartlepool (reference SAM/2018/00050). IBPB8270R001F01_EIA REPORT.pdf:401:results of which would be suitable to inform a future dredge campaign at Hartlepool channel, as well as IBPB8270R001F01_EIA REPORT.pdf:401:requirements for the other dredge areas included in L/2015/00427/1 (i.e. the maintenance areas in the IBPB8270R001F01_EIA REPORT.pdf:401:During October 2018, PDT recovered six surface samples from the footprint of a proposed dredge for the IBPB8270R001F01_EIA REPORT.pdf:401:MMO (SAM/2018/00005). The location of these six samples in relation to the maintenance dredge IBPB8270R001F01_EIA REPORT.pdf:402:undertaken for the 2014 survey does not extend into the most downstream areas of the NGCT dredge IBPB8270R001F01_EIA REPORT.pdf:402:the proposed dredge post 2006. In addition, it is recognised that the most recent benthic ecological IBPB8270R001F01_EIA REPORT.pdf:402:survey data from within the dredge footprint was recovered during 2014, and is therefore likely to be IBPB8270R001F01_EIA REPORT.pdf:402:dredged material. We propose to recover four grab samples from within and four grabs around each of IBPB8270R001F01_EIA REPORT.pdf:403:location of the proposed terminal, the berthing pocket and area that is proposed to be dredged within the IBPB8270R001F01_EIA REPORT.pdf:404:“Disposal at sea will be subject to a marine licence and new samples and analysis of the dredge material IBPB8270R001F01_EIA REPORT.pdf:404:for at sea disposal of the dredged material.” IBPB8270R001F01_EIA REPORT.pdf:404:throughout the proposed dredge footprint and from within the proposed relocation area for the Riverside IBPB8270R001F01_EIA REPORT.pdf:404:sediments within the dredge footprint were suitable for offshore disposal. Sampling in 2008 for the QEII IBPB8270R001F01_EIA REPORT.pdf:404:subject to previous maintenance dredging (i.e. a significantly different setting to that within the proposed IBPB8270R001F01_EIA REPORT.pdf:404:dredge footprint in the main channel)) confirmed contaminants within the unconsolidated sediments IBPB8270R001F01_EIA REPORT.pdf:404:(L/2013/00404/5), there is a mechanism in place for appropriately dredging the contaminated IBPB8270R001F01_EIA REPORT.pdf:404:Based on the above, in addition to the fact that the vast majority of sediments to be dredged comprise IBPB8270R001F01_EIA REPORT.pdf:404:maintenance dredging), it is proposed that samples from the surface only will be collected. It is IBPB8270R001F01_EIA REPORT.pdf:404:(specifically the 2008 and 2014 surveys), which confirm that the sediments to be dredged at depth IBPB8270R001F01_EIA REPORT.pdf:404:Level 2. It is recognised that there is also a requirement to undertake local dredging at QEII Berth, and IBPB8270R001F01_EIA REPORT.pdf:404:deposits at depth at this location (and there is already an agreed mechanism for managing any dredging IBPB8270R001F01_EIA REPORT.pdf:404:through dredging technique), it is concluded that additional sampling at depth would provide no additional IBPB8270R001F01_EIA REPORT.pdf:404:dredge footprint. IBPB8270R001F01_EIA REPORT.pdf:404:Based on the OSPAR Guidelines for the Management of Dredged Material (as revised and adopted in IBPB8270R001F01_EIA REPORT.pdf:404:2014), the number of samples required is determined on the quantity of sediment to be dredged. The IBPB8270R001F01_EIA REPORT.pdf:405:Based on the OSPAR guidance, a dredge volume of 4.8 million m3 would equate to 44 – 58 surface IBPB8270R001F01_EIA REPORT.pdf:405:sediment samples (this is a guide only) collected at evenly distributed locations across the dredge IBPB8270R001F01_EIA REPORT.pdf:405: • Cefas Guideline Action Levels for the disposal of dredged material (Cefas, undated); IBPB8270R001F01_EIA REPORT.pdf:405:dredged material from the Tees estuary (taking into account the fact that an agreement has already been IBPB8270R001F01_EIA REPORT.pdf:405:samples recovered within the dredge footprint for the proposed Teesside GasPort). IBPB8270R001F01_EIA REPORT.pdf:405:the NGCT dredge footprint to inform the mid-licence sampling requirements for its maintenance dredge IBPB8270R001F01_EIA REPORT.pdf:408: project which comprises a capital dredge of 4.8 million mᶟ (the proposed dredge IBPB8270R001F01_EIA REPORT.pdf:408: depths vary over the seven dredge areas). The sampling advice relates to the disposal IBPB8270R001F01_EIA REPORT.pdf:408:  Capital dredging within the existing dredged approach channel. IBPB8270R001F01_EIA REPORT.pdf:408:  Capital dredging of deep water berthing areas alongside the proposed quay IBPB8270R001F01_EIA REPORT.pdf:408: face (dredged to 16m bCD). IBPB8270R001F01_EIA REPORT.pdf:408:  Pumping suitable dredged material ashore for use in the reclamation works IBPB8270R001F01_EIA REPORT.pdf:408:  Disposal of the balance of the capital dredged material at existing offshore IBPB8270R001F01_EIA REPORT.pdf:408: container terminal. Although currently dredged to 10.4m bCD, some further IBPB8270R001F01_EIA REPORT.pdf:408: highly localised dredging will be required close to the corner with Tees Dock. IBPB8270R001F01_EIA REPORT.pdf:409:Table 1. Proposed dredge depths and quantities per dredge area IBPB8270R001F01_EIA REPORT.pdf:409:Dredge Area Existing depth (mBCD) Proposed depth Dredge depth Proposed dredge IBPB8270R001F01_EIA REPORT.pdf:410: Dredged Material, samples should be taken to provide a good representation of the IBPB8270R001F01_EIA REPORT.pdf:410: volume of material to be dredged. The distribution and depth of sampling should reflect IBPB8270R001F01_EIA REPORT.pdf:410: the size and depth of the area to be dredged, the amount to be dredged and the IBPB8270R001F01_EIA REPORT.pdf:410:In consideration of the volume details of the proposed dredge, the MMO advises that 37 IBPB8270R001F01_EIA REPORT.pdf:410: dredge area to provide adequate spatial coverage (see Table 2). This is in line with the IBPB8270R001F01_EIA REPORT.pdf:410: for dredges between 500,000 and 2,000,000m3, and 10 additional stations for each IBPB8270R001F01_EIA REPORT.pdf:410: close to dredge area C in this project, it has been determined that a reduced sampling IBPB8270R001F01_EIA REPORT.pdf:410:Table 2. Recommended sample stations for each dredge area (*Provided IBPB8270R001F01_EIA REPORT.pdf:410:dredging does not exceed 1 metre below the sediment surface) IBPB8270R001F01_EIA REPORT.pdf:410: Dredge Area Proposed Recommended Depth samples Total number of IBPB8270R001F01_EIA REPORT.pdf:410: dredge quantity sample stations (required for samples IBPB8270R001F01_EIA REPORT.pdf:410: *no dredge volume has been provided so a nominal 5 samples have been suggested. IBPB8270R001F01_EIA REPORT.pdf:410: no dredge depth provided. Where dredging is greater than 1 m, core samples at 1 m intervals are

IBPB8270R001F01_EIA REPORT.pdf:411: proposed dredging a full suite of contaminants is a prudent and proportionate

IBPB8270R001F01_EIA REPORT.pdf:412:Where long term licences for maintenance dredging will be applied for, additional sampling

IBPB8270R001F01_EIA REPORT.pdf:413:A1 – A4 Dredge Area A (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒

IBPB8270R001F01_EIA REPORT.pdf:413:B1 – B6 Dredge Area B (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒

IBPB8270R001F01_EIA REPORT.pdf:413:C1 – C12 Dredge Area C (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒

IBPB8270R001F01_EIA REPORT.pdf:413:D1 – D3 Dredge Area D (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒

IBPB8270R001F01_EIA REPORT.pdf:413:E1 – E5 Dredge Area E (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒

IBPB8270R001F01_EIA REPORT.pdf:413:F1 Dredge Area F (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒

IBPB8270R001F01_EIA REPORT.pdf:413:G1 – G6 Dredge Area G (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒

IBPB8270R001F01_EIA REPORT.pdf:413:Stations should be evenly distributed across the dredge areas, depth samples are no longer

IBPB8270R001F01_EIA REPORT.pdf:413:Dredge Area A – 4 stations at 0m

IBPB8270R001F01_EIA REPORT.pdf:413:Dredge Area B – 6 stations at 0m

IBPB8270R001F01_EIA REPORT.pdf:413:Dredge Area C – 12 stations at 0m

IBPB8270R001F01_EIA REPORT.pdf:413:Dredge Area D – 3 stations at 0m

IBPB8270R001F01_EIA REPORT.pdf:413:Dredge Area E – 5 stations at 0m

IBPB8270R001F01_EIA REPORT.pdf:413:Dredge Area F – 1 Station at 0m

IBPB8270R001F01_EIA REPORT.pdf:413:Dredge Area G – 6 stations at 0m

IBPB8270R001F01_EIA REPORT.pdf:416: LSN Sample No. Location Dredge Area no. Excluded TS% AS CD CR CU HG NI PB ZN DBT TBT

IBPB8270R001F01_EIA REPORT.pdf:416: LSN Sample No. Location Dredge Area no. Excluded TS (%) 23BA ACENAPH ACENAPT ANTHRAC BAA BAP BBF BENZGHI BEP BKF C1N C1PHEN

IBPB8270R001F01_EIA REPORT.pdf:417: marine environment prior to issuing a Marine Licence. This may include characterisation of dredge

IBPB8270R001F01_EIA REPORT.pdf:417: of the existing 10-year maintenance dredge disposal licence (L/2015/00427/1). Sampling advice

IBPB8270R001F01_EIA REPORT.pdf:417: dredge areas according to their proposed volumes.

IBPB8270R001F01_EIA REPORT.pdf:417: ten samples outside of the NGCT dredge area were deemed to be necessary to support mid-licence

IBPB8270R001F01_EIA REPORT.pdf:417: analysis throughout the NGT dredge areas.

IBPB8270R001F01_EIA REPORT.pdf:418: Area Surface depth Depth of refusal Core depth Dredge depth m BCD*

IBPB8270R001F01_EIA REPORT.pdf:418: maintenance area upstream) to show that PBDE analysis is not necessary within the NGCT dredge

IBPB8270R001F01_EIA REPORT.pdf:418: area. They argue that the samples taken are sufficiently representative of the NGCT dredge area

IBPB8270R001F01_EIA REPORT.pdf:418: analysis of the proposed dredge area, it is my opinion that this has not been adequately justified,

IBPB8270R001F01_EIA REPORT.pdf:419:A1 – A4 Dredge Area A (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒

IBPB8270R001F01_EIA REPORT.pdf:419:B1 – B6 Dredge Area B (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒

IBPB8270R001F01_EIA REPORT.pdf:419:C1 – C12 Dredge Area C (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒

IBPB8270R001F01_EIA REPORT.pdf:419:D1 – D3 Dredge Area D (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒

IBPB8270R001F01_EIA REPORT.pdf:419:E1 – E5 Dredge Area E (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒

IBPB8270R001F01_EIA REPORT.pdf:419:F1 Dredge Area F (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒

IBPB8270R001F01_EIA REPORT.pdf:419:G1 – G6 Dredge Area G (0m) ☒ ☒ ☒ ☒ ☒ ☒ ☒ ☒

IBPB8270R001F01_EIA REPORT.pdf:419: Stations should be evenly distributed across the dredge areas, depth samples are no longer required

IBPB8270R001F01_EIA REPORT.pdf:419: Dredge Area A – 4 stations at 0m

IBPB8270R001F01_EIA REPORT.pdf:419: Dredge Area B – 6 stations at 0m

IBPB8270R001F01_EIA REPORT.pdf:419: Dredge Area C – 12 stations at 0m

IBPB8270R001F01_EIA REPORT.pdf:419: Dredge Area D – 3 stations at 0m

IBPB8270R001F01_EIA REPORT.pdf:419: Dredge Area E – 5 stations at 0m

IBPB8270R001F01_EIA REPORT.pdf:419: Dredge Area F – 1 Station at 0m

IBPB8270R001F01_EIA REPORT.pdf:419: Dredge Area G – 6 stations at 0m

IBPB8270R001F01_EIA REPORT.pdf:421:could not be sampled due to recent dredging activity over one site and restricted tidal accessibility to

IBPB8270R001F01_EIA REPORT.pdf:421:potentially be subject to deposition of sediment that will be disturbed during the capital dredging

IBPB8270R001F01_EIA REPORT.pdf:422:from within the proposed dredge envelope

IBPB8270R001F01_EIA REPORT.pdf:424:area to be dredged as part of the QEII Berth project. Two vibrocores (VC004 and VC001B) sampled

IBPB8270R001F01_EIA REPORT.pdf:424:marine licence states that the unconsolidated deposits need to be dredged using an enclosed grab,

IBPB8270R001F01_EIA REPORT.pdf:424:data was originally submitted to Cefas in support of a maintenance dredge disposal licence held by

IBPB8270R001F01_EIA REPORT.pdf:424:capital dredging within Tees Dock had previously been dredged to bedrock (i.e. Mercia mudstone).

IBPB8270R001F01_EIA REPORT.pdf:424:maintenance dredge disposal licences in place at the time.

IBPB8270R001F01_EIA REPORT.pdf:424:The MMO granted a marine licence for the works in 2013, which permitted the disposal of all dredged

IBPB8270R001F01_EIA REPORT.pdf:425: would also be subject to dredging from the

IBPB8270R001F01_EIA REPORT.pdf:425: 6 4.18 0, 1, 2, 3, 4.18 NGCT dredge footprint)

IBPB8270R001F01_EIA REPORT.pdf:425:(which will be subject to dredging for the NGCT). All other samples recovered were from vibrocores

IBPB8270R001F01_EIA REPORT.pdf:425:located in areas outside of the NGCT dredge footprint.

IBPB8270R001F01_EIA REPORT.pdf:434:activity (e.g. dredging, structures within the estuary), the habitat itself cannot be considered man-made.

IBPB8270R001F01_EIA REPORT.pdf:437:recharging the intertidal area with silt arising from maintenance dredging to create an area of enhanced,

IBPB8270R001F01_EIA REPORT.pdf:437:maintenance dredged material. This habitat is assigned to the ‘high’ distinctiveness category. While this

IBPB8270R001F01_EIA REPORT.pdf:438: Proposed dredge footprint

IBPB8270R001F01_EIA REPORT.pdf:440:pressure is to develop a 'beneficial use' of maintenance dredgings programme to retain fine sediments within

IBPB8270R001F01_EIA REPORT.pdf:457:Table 5. Summary of macrobenthic abundance and diversity of sediments sampled during the year 2 in-dredge monitoring

IBPB8270R001F01_EIA REPORT.pdf:460: - Capital dredging within the existing dredged approach channel.

IBPB8270R001F01_EIA REPORT.pdf:460: - Capital dredging of deep-water berthing areas alongside the proposed quay face (dredged to 16 m

IBPB8270R001F01_EIA REPORT.pdf:460: - Pumping suitable dredged material ashore for use in the reclamation works and for locally raising land

IBPB8270R001F01_EIA REPORT.pdf:460: - Disposal of the balance of the capital dredged material at existing offshore disposal grounds in Tees

IBPB8270R001F01_EIA REPORT.pdf:460: some highly localised dredging close to the corner with Tees Dock.

IBPB8270R001F01_EIA REPORT.pdf:460:for maintenance dredging within the Tees Estuary, sediment samples were collected and analysed from two

IBPB8270R001F01_EIA REPORT.pdf:460:offshore dredge disposal areas.

IBPB8270R001F01_EIA REPORT.pdf:460: - Collect grab samples within the Tees Estuary and within two Tees Bay offshore dredge disposal sites to

IBPB8270R001F01_EIA REPORT.pdf:460: is proposed to be dredged within the approach channel, and at the QEII berth to establish the baseline

IBPB8270R001F01_EIA REPORT.pdf:461:maintenance dredging programmes. At near-shore and un-dredged locations, the opportunistic Ophryotrocha sp.

IBPB8270R001F01_EIA REPORT.pdf:461:stations within the proposed dredge footprint for QEII. The two QEII Berth sample stations comprised of fine

IBPB8270R001F01_EIA REPORT.pdf:467:the Recommended Operating Guidelines (ROG) for MESH trawls and dredges (Curtis & Coggan 2007). Tows

IBPB8270R001F01_EIA REPORT.pdf:467:further detailed in the ROG for MESH trawls and dredges (Curtis & Coggan 2007).

IBPB8270R001F01_EIA REPORT.pdf:484:Faunal Group B occurred at the eight stations associated with offshore dredge disposal site C. This group was

IBPB8270R001F01_EIA REPORT.pdf:484:Faunal Group C occurred at seven of the eight stations associated with offshore dredge disposal site A (TBA-04

IBPB8270R001F01_EIA REPORT.pdf:497:Curtis M, Coggan R (2007) Recommended operating guidelines (ROG) for MESH trawls and dredges. :24

IBPB8270R001F01_EIA REPORT.pdf:506: 3.3 Modelling of dredging noise ……………………………………………………………………………….. 14

IBPB8270R001F01_EIA REPORT.pdf:508:impact piling and dredging activities.

IBPB8270R001F01_EIA REPORT.pdf:508:required to be dredged along with the locations of the other aspects of the facility.

IBPB8270R001F01_EIA REPORT.pdf:510:from impact piling and dredging operations. This modelling was carried out using

IBPB8270R001F01_EIA REPORT.pdf:510:software package to provide a comparison to INSPIRE and also to model dredging activities.

IBPB8270R001F01_EIA REPORT.pdf:511:RAMSGeo has been used to model underwater noise from dredging. RAMSGeo has also been

IBPB8270R001F01_EIA REPORT.pdf:513:Figure 2-2 Power Spectral Density from measurement taken of backhoe dredging and

IBPB8270R001F01_EIA REPORT.pdf:513: suction dredging in Broadhaven Bay, Ireland

IBPB8270R001F01_EIA REPORT.pdf:514:2.5.1 Suction dredging

IBPB8270R001F01_EIA REPORT.pdf:514:Cutter suction dredging (CSD) involves the use of a rotating cutter head to loosen rock and

IBPB8270R001F01_EIA REPORT.pdf:514:suction hopper dredging (TSHD) involves a suction pipe with a drag head that is dragged over

IBPB8270R001F01_EIA REPORT.pdf:514:the seabed whilst dredging.

IBPB8270R001F01_EIA REPORT.pdf:514:sand and silt. Figure 2-4 shows a typical time history of dredging noise. The first 40 seconds of

IBPB8270R001F01_EIA REPORT.pdf:514:After this point the noise levels increase. It is thought that the dredger may have reached a

IBPB8270R001F01_EIA REPORT.pdf:514:from a suction dredger, which arise from different aspects of the dredger's operation.

IBPB8270R001F01_EIA REPORT.pdf:514:Figure 2-4 Pressure time history from suction dredging activity

IBPB8270R001F01_EIA REPORT.pdf:514:with CSDs, despite the operation of a cutterhead. As the sediment to be dredged in the River

IBPB8270R001F01_EIA REPORT.pdf:515: from suction dredging.

IBPB8270R001F01_EIA REPORT.pdf:515:Dredger Specification Date and Sediment Source Transmission Author

IBPB8270R001F01_EIA REPORT.pdf:515: 2.5.2 Backhoe dredging

IBPB8270R001F01_EIA REPORT.pdf:515: backhoe dredger. The time history indicates considerable variation in underwater pressure levels

IBPB8270R001F01_EIA REPORT.pdf:515: and illustrates the levels of noise during each part of the dredging process.

IBPB8270R001F01_EIA REPORT.pdf:515: Figure 2-5 Pressure time history from backhoe dredging activity

IBPB8270R001F01_EIA REPORT.pdf:515: Table 2-5 shows two reported underwater noise measurements of backhoe dredgers. Nedwell et

IBPB8270R001F01_EIA REPORT.pdf:515: that occur during a backhoe dredger operation which characterise sounds produced by the New

IBPB8270R001F01_EIA REPORT.pdf:515: York dredger whilst removing fractured limestone. Four of the events were linked to a single

IBPB8270R001F01_EIA REPORT.pdf:515: of the dredge plant and with barge anchoring. SPL for the individual source levels of each event

IBPB8270R001F01_EIA REPORT.pdf:516:Table 2-4 Summary of reported underwater noise surveys of Backhoe Dredgers

IBPB8270R001F01_EIA REPORT.pdf:516:Dredger Specification Date and Sediment Source Transmission Author

IBPB8270R001F01_EIA REPORT.pdf:516:similar to those presented in the previous section for dredging. One important point to highlight is

IBPB8270R001F01_EIA REPORT.pdf:516:the transitory nature of underwater noise from passing vessels whereas a dredger will operate in

IBPB8270R001F01_EIA REPORT.pdf:517:levels for the proposed impact piling operation and dredging activities. The modelling results

IBPB8270R001F01_EIA REPORT.pdf:521:3.3 Modelling of dredging noise

IBPB8270R001F01_EIA REPORT.pdf:521:RMS SPL from two different dredging operations; backhoe dredging and suction dredging. As

IBPB8270R001F01_EIA REPORT.pdf:521:dredging extend to a greater range compared to the predicted ranges for a backhoe dredger.

IBPB8270R001F01_EIA REPORT.pdf:521: in 10 dB increments for dredging activities (ranges based on three transects)

IBPB8270R001F01_EIA REPORT.pdf:521: Backhoe Dredging Suction Dredging

IBPB8270R001F01_EIA REPORT.pdf:522:from a backhoe dredger and a suction dredger, as level versus range plots. These figures show

IBPB8270R001F01_EIA REPORT.pdf:522: noise across three transects from a backhoe dredger using the RAMSGeo

IBPB8270R001F01_EIA REPORT.pdf:522: noise across three transects from a suction dredger using the RAMSGeo

IBPB8270R001F01_EIA REPORT.pdf:526:such as dredging.

IBPB8270R001F01_EIA REPORT.pdf:527:In order to assess the environmental effects that impact piling and dredging activities are likely to

IBPB8270R001F01_EIA REPORT.pdf:532:impact piling and dredging related noise.

IBPB8270R001F01_EIA REPORT.pdf:533:The source levels for the noise from dredging operations, using a backhoe dredger was

IBPB8270R001F01_EIA REPORT.pdf:533:estimated to be 165 dB re 1 µPa @ 1 m (SPLRMS) and for a suction dredger was estimated to be

IBPB8270R001F01_EIA REPORT.pdf:533:The modelled dBht(Species) sound propagation for backhoe and suction dredging are not

IBPB8270R001F01_EIA REPORT.pdf:542:6.3.3 Behavioural response: backhoe and suction dredging noise

IBPB8270R001F01_EIA REPORT.pdf:542:behavioural response for the species of interest from dredging activities using a backhoe dredger

IBPB8270R001F01_EIA REPORT.pdf:542:and a suction dredger. Maximum, minimum and mean ranges are presented for both dredging

IBPB8270R001F01_EIA REPORT.pdf:542:types. The impact ranges for backhoe dredging are all seen to be 10m or less. The impact

IBPB8270R001F01_EIA REPORT.pdf:542:ranges for suction dredging are similar for all species except herring. The maximum 75 dBht

IBPB8270R001F01_EIA REPORT.pdf:542:Figure 6-13 and Figure 6-14 show the perceived dredging noise level versus ranges for each

IBPB8270R001F01_EIA REPORT.pdf:542: backhoe and suction dredging operations

IBPB8270R001F01_EIA REPORT.pdf:542: Backhoe Dredging Suction Dredging

IBPB8270R001F01_EIA REPORT.pdf:542: backhoe dredging along the three modelled transects

IBPB8270R001F01_EIA REPORT.pdf:543: suction dredging along the three modelled transects

IBPB8270R001F01_EIA REPORT.pdf:544:activities that have been assessed include impact piling, suction dredging and backhoe dredging.

IBPB8270R001F01_EIA REPORT.pdf:544:caused. Modelling of underwater noise from dredging operations shows that noise levels are not

IBPB8270R001F01_EIA REPORT.pdf:544:backhoe and suction dredging are not estimated to reach the level at which a traumatic hearing

IBPB8270R001F01_EIA REPORT.pdf:544:The 90 and 75 dBht impact ranges for backhoe dredging are all seen to be 10m or less. The

IBPB8270R001F01_EIA REPORT.pdf:544:impact ranges for suction dredging are similar for all species except herring. The maximum

IBPB8270R001F01_EIA REPORT.pdf:546:Halcrow, (1991). Tees estuary Dredging Review. Report for Tees and Hartlepool Port Authority.

IBPB8270R001F01_EIA REPORT.pdf:546:dredgers JFJ De Nul and Crisoforo Colombo. Subacoustech Report No. 602R0206.

IBPB8270R001F01_EIA REPORT.pdf:547:underwater noise during dredging and pipe-laying operations in Broadhaven Bay, Co. Mayo,

IBPB8270R001F01_EIA REPORT.pdf:547:by a Hydraulic Cutterhead Dredge Fracturing Limestone Rock. ERDC TN-DOER-E34.

IBPB8270R001F01_EIA REPORT.pdf:557:Dredging

IBPB8270R001F01_EIA REPORT.pdf:592:The assessment by AOC did identify that the channel dredging, deep water berth and construction of the

IBPB8270R001F01_EIA REPORT.pdf:592:impact, however, was considered low due to the levels of historic dredging that has taken place within the

IBPB8270R001F01_EIA REPORT.pdf:593:dredging of the approach channel will be undertaken to provide the required access to the proposed

IBPB8270R001F01_EIA REPORT.pdf:593:Details of the boundaries of capital dredging for the approach channel and the locations of the disposal

IBPB8270R001F01_EIA REPORT.pdf:594: Capital dredging within the existing dredged approach channel to deepen the channel by 0.4m from

IBPB8270R001F01_EIA REPORT.pdf:594: Pumping suitable dredged material ashore for use in the reclamation works and for locally raising land

IBPB8270R001F01_EIA REPORT.pdf:594: Disposal of the balance of the capital dredged material at existing offshore disposal grounds in Tees

IBPB8270R001F01_EIA REPORT.pdf:594: Capital dredging of deep water berthing areas alongside the proposed quay face (dredged to 16m

IBPB8270R001F01_EIA REPORT.pdf:594:With respect to the disposal of dredged material, it is proposed to dispose of the majority of the dredged

IBPB8270R001F01_EIA REPORT.pdf:595:At present, maintenance dredging of the navigation channel and various berthing areas is required

IBPB8270R001F01_EIA REPORT.pdf:595:existing maintenance dredging strategy will need significant adjustment. It is proposed that maintenance

IBPB8270R001F01_EIA REPORT.pdf:595:dredgings will be disposed of at the existing disposal sites in Tees Bay, as currently occurs.

IBPB8270R001F01_EIA REPORT.pdf:595:The construction of the deep water berth and quay wall and capital dredging, however, were considered

IBPB8270R001F01_EIA REPORT.pdf:596:zone of the River Tees. Similarly, the proposed dredging works will in part impact upon previously

IBPB8270R001F01_EIA REPORT.pdf:596:given that capital dredging will primarily take place within an existing dredged channel.

IBPB8270R001F01_EIA REPORT.pdf:600:The construction of the deep water berth and quay wall and capital dredging may impact as yet

IBPB8270R001F01_EIA REPORT.pdf:600:out in advance of capital dredging within the approach channel or the deep water berth area, or in

IBPB8270R001F01_EIA REPORT.pdf:602:undertaken in advance of construction and dredging for NGCT, all collected cores and samples will be

IBPB8270R001F01_EIA REPORT.pdf:604:low given that capital dredging will primarily take place within an existing dredged channel.

IBPB8270R001F01_EIA REPORT.pdf:604:It is envisaged that geophysical survey may be required for NGCT in order to inform the dredging

IBPB8270R001F01_EIA REPORT.pdf:604:be present within the footprint of proposed dredging activity.

IBPB8270R001F01_EIA REPORT.pdf:606:and PD Teesport prior to dredging and construction works commencing.

IBPB8270R001F01_EIA REPORT.pdf:606:Any archaeological discoveries that come to light during the course of the NGCT dredging and

IBPB8270R001F01_EIA REPORT.pdf:615:Description: Found in Tees by Mr Watkinson whilst Dredging. Stone ware flagon. Cracked. There is a hole

IBPB8270R001F01_EIA REPORT.pdf:615:in the side where it was hit by the bucket of the dredger.

IBPB8270R001F01_EIA REPORT.pdf:615:Description: A Neolithic stone axe head was found in 1892. It was dredged from the River Tees about a

IBPB8270R001F01_EIA REPORT.pdf:616:discoveries of archaeological interest from dredging within MAI licence areas. Between 2005 and 2014,

IBPB8270R001F01_EIA REPORT.pdf:616:330 separate reports have been filed addressing over 1000 finds. The MAI protocol for marine dredging

IBPB8270R001F01_EIA REPORT.pdf:616:reflects discoveries under similar conditions to the capital dredging for NGCT and the methodology is thus

IBPB8270R001F01_EIA REPORT.pdf:617: Capital dredging within the existing dredged approach channel; to deepen the channel by 0.4m from

IBPB8270R001F01_EIA REPORT.pdf:617: Pumping suitable dredged material ashore for use in the reclamation works and for locally raising land

IBPB8270R001F01_EIA REPORT.pdf:617: Capital dredging of deep water berthing areas alongside the proposed quay face (dredged to 16m

IBPB8270R001F01_EIA REPORT.pdf:617: Capital dredging:

IBPB8270R001F01_EIA REPORT.pdf:617:  Obstructions encountered by the draghead or dredge bucket on the seafloor; and

IBPB8270R001F01_EIA REPORT.pdf:617:  Archaeological material observed within dredged material or trapped in the dredge gear.

IBPB8270R001F01_EIA REPORT.pdf:617: Use of dredged material:

IBPB8270R001F01_EIA REPORT.pdf:619:intrusive works (dredging or piling) will need to cease in the vicinity of this position and the position of the

IBPB8270R001F01_EIA REPORT.pdf:619:be the position of the find itself, if known, or the position of the dredger at the time of the discovery. The

IBPB8270R001F01_EIA REPORT.pdf:629: • Capital dredging of the approach channel to the NGCT (equating to approximately 4.8 million m3

IBPB8270R001F01_EIA REPORT.pdf:629: • Disposal of dredged material (through a combination of beneficial reuse (localised reclamation

IBPB8270R001F01_EIA REPORT.pdf:629: and raising land levels within the proposed terminal site) and offshore disposal of dredged

IBPB8270R001F01_EIA REPORT.pdf:629: • Capital dredging.

IBPB8270R001F01_EIA REPORT.pdf:629: dredged material within the reclamation area.

IBPB8270R001F01_EIA REPORT.pdf:629:As reported in the EIA Report, it is not expected that the existing maintenance dredging strategy will need

IBPB8270R001F01_EIA REPORT.pdf:629:maintenance dredging has not been considered further within this WFD compliance assessment.

IBPB8270R001F01_EIA REPORT.pdf:632: Yes - the dredging plume No - control

IBPB8270R001F01_EIA REPORT.pdf:632: Yes – the deepened channel Yes – the proposed dredging could impact on lower sensitive Yes – the dredging plume

IBPB8270R001F01_EIA REPORT.pdf:632:Capital dredging could impact on habitats and the plume could potentially impact on higher could impact on migratory No

IBPB8270R001F01_EIA REPORT.pdf:632: regarding the possible beneficial use of maintenance dredged

IBPB8270R001F01_EIA REPORT.pdf:632: Maintenance dredged material, supplied by PDT, would then

IBPB8270R001F01_EIA REPORT.pdf:632: has agreed to supply up to 6,000m3 of maintenance dredged

IBPB8270R001F01_EIA REPORT.pdf:632: use of dredged material, the proposals represent habitat

IBPB8270R001F01_EIA REPORT.pdf:633: No - the area of capital dredging within this water body is Yes –

IBPB8270R001F01_EIA REPORT.pdf:633:Capital dredging relatively small compared to the size of the water body as a (bathing

IBPB8270R001F01_EIA REPORT.pdf:633:Capital dredging No - dredging will not impact on the WFD groundwater body No - dredging will not impact on the WFD groundwater body

IBPB8270R001F01_EIA REPORT.pdf:634: • Hydromorphological impacts: Capital dredging and the construction/presence of a new quay (all

IBPB8270R001F01_EIA REPORT.pdf:634: • Biological habitats: Capital dredging (removal of habitat/sedimentation).

IBPB8270R001F01_EIA REPORT.pdf:634: • Fish: Capital dredging (sediment plume).

IBPB8270R001F01_EIA REPORT.pdf:634: • Water quality: Capital dredging (sediment plume).

IBPB8270R001F01_EIA REPORT.pdf:634: • Protected areas (one designated bathing water only): Capital dredging.

IBPB8270R001F01_EIA REPORT.pdf:634:2.4.1 Hydromorphological effects: Capital dredging and presence of new quay wall

IBPB8270R001F01_EIA REPORT.pdf:635:swell height of 6m will be reflected on the side of the dredged channel and reach the area around the

IBPB8270R001F01_EIA REPORT.pdf:635:maintenance dredging that existed at that location at the time of the modelling assessment. As a result, a

IBPB8270R001F01_EIA REPORT.pdf:635:The main potential for effect on intertidal areas is predicted at Seal Sands. During the dredging, about 3%

IBPB8270R001F01_EIA REPORT.pdf:635:of the material dredged in the outer channel is predicted to deposit on Seal Sands at a depth of 1mm.

IBPB8270R001F01_EIA REPORT.pdf:635:placement of the dredging barge on the eastern side of the estuary will reduce the potential for material to

IBPB8270R001F01_EIA REPORT.pdf:635:Based on the above, because there are measures that will be adopted during the capital dredging to

IBPB8270R001F01_EIA REPORT.pdf:635:2.4.2 Biological habitats: Capital dredging

IBPB8270R001F01_EIA REPORT.pdf:635:There would be a direct loss of invertebrate resource due to the capital dredging over an area of

IBPB8270R001F01_EIA REPORT.pdf:635:therefore, already subject to maintenance dredging. The area of seabed that will be dredged that is

IBPB8270R001F01_EIA REPORT.pdf:636:2019) confirms that the following completion of the capital dredge, the benthic community would be

IBPB8270R001F01_EIA REPORT.pdf:636:expected to recover to one that is similar to that present throughout the existing dredged approach

IBPB8270R001F01_EIA REPORT.pdf:636:channel across the majority of the proposed dredge footprint.

IBPB8270R001F01_EIA REPORT.pdf:636:The deposition of fine sediment resuspended by the dredging process is not anticipated to impact on the

IBPB8270R001F01_EIA REPORT.pdf:636:2.4.3 Fish: Capital dredging

IBPB8270R001F01_EIA REPORT.pdf:636:column during capital dredging and during the return of water to the estuary from the reclamation process.

IBPB8270R001F01_EIA REPORT.pdf:636:of sediment plumes during dredging was modelled. The largest rise in peak suspended sediment

IBPB8270R001F01_EIA REPORT.pdf:636:concentrations above background concentrations occurred within the immediate vicinity of the dredger (up

IBPB8270R001F01_EIA REPORT.pdf:636:It is predicted that the increase in suspended solid concentrations arising during capital dredging would be

IBPB8270R001F01_EIA REPORT.pdf:636:outside the range of natural variation, particularly in the immediate vicinity of the dredger. The modelling

IBPB8270R001F01_EIA REPORT.pdf:636:are however significantly affected by the location of the dredger. When located in the Tees Dock turning

IBPB8270R001F01_EIA REPORT.pdf:636:outside of the immediate vicinity of the dredger. This occurs both laterally and within the streamlining of

IBPB8270R001F01_EIA REPORT.pdf:636:the vessel. This significant decrease in suspended solids also occurs when the dredger is located in the

IBPB8270R001F01_EIA REPORT.pdf:637: • Undertaking dredging operations using a trailing suction hopper dredger in long strips along the

IBPB8270R001F01_EIA REPORT.pdf:637: axis of the estuary rather than dredging along the width of the river. This will reduce both the

IBPB8270R001F01_EIA REPORT.pdf:637: • Locating the cutter suction dredger on either the western or eastern side of the estuary.

IBPB8270R001F01_EIA REPORT.pdf:637:2.4.4 Water Quality: capital dredging

IBPB8270R001F01_EIA REPORT.pdf:637:The predicted plume as a result of capital dredging could impact on water quality. However, most of the

IBPB8270R001F01_EIA REPORT.pdf:637:sediment is anticipated to fall out of suspension within the immediate vicinity of the dredger, particularly in

IBPB8270R001F01_EIA REPORT.pdf:637:the lower channel where the dredged material is predominantly sand. Although the dredging will give rise

IBPB8270R001F01_EIA REPORT.pdf:637:periods of dredging (which will not be continuous since the dredger will need to periodically dispose of

IBPB8270R001F01_EIA REPORT.pdf:637:given the relatively high percentages of mudstone and sand to be dredged.

IBPB8270R001F01_EIA REPORT.pdf:637:2.4.5 Capital dredging: Protected areas (bathing waters only)

IBPB8270R001F01_EIA REPORT.pdf:637:The proposed capital dredging has the potential to disturb sediment and release sediment-bound bacteria

IBPB8270R001F01_EIA REPORT.pdf:637:requested by the MMO). Additionally, the distance between the bathing waters and the dredge footprint

IBPB8270R001F01_EIA REPORT.pdf:647:Completed scoping tables for activity: dredging

IBPB8270R001F01_EIA REPORT.pdf:647:dredging (tables taken from Clearing the Waters for All; Environment Agency, 2016) and modified to assess the potential effects for the groundwater

IBPB8270R001F01_EIA REPORT.pdf:647:body. Note that for dredging, there is no pathway for effect on the groundwater so only the surface water is considered here.

IBPB8270R001F01_EIA REPORT.pdf:647: Name of activity Capital dredging

IBPB8270R001F01_EIA REPORT.pdf:647: Brief description of activity Capital dredging within the existing dredged approach channel to deepen the channel by 0.4m from 14.1m

IBPB8270R001F01_EIA REPORT.pdf:647: Dock turning circle and Seaton Channel turning circle) in the Tees estuary. Capital dredging of deep water

IBPB8270R001F01_EIA REPORT.pdf:647: berthing areas alongside the proposed quay face (dredged to 16m below CD).

IBPB8270R001F01_EIA REPORT.pdf:647: For different parts of the dredging it will be necessary to use a trailing suction hopper dredger, cutter

IBPB8270R001F01_EIA REPORT.pdf:647: suction dredger or backhoe.

IBPB8270R001F01_EIA REPORT.pdf:647: 116.5ha) comprises the existing navigation channel and is therefore, already dredged.

IBPB8270R001F01_EIA REPORT.pdf:647: Timings of activity (including start and finish dates) Due to the differences in the material to be dredged, it is likely that dredging in the lower reaches and

IBPB8270R001F01_EIA REPORT.pdf:647: dredging in the upper reaches will take place using different types of dredger. Consequently, there is the

IBPB8270R001F01_EIA REPORT.pdf:647: possibility that both dredgers could be operating simultaneously.

IBPB8270R001F01_EIA REPORT.pdf:647: Dredging the mudstone in the upper reach of the channel using a CSD or backhoe is likely to take

IBPB8270R001F01_EIA REPORT.pdf:647: approximately 33 weeks. It is anticipated that the timing of the CSD dredging operation will be managed so

IBPB8270R001F01_EIA REPORT.pdf:648: The time required to dredge 1,100,000 m3 of granular material and clays will be between approximately 4

IBPB8270R001F01_EIA REPORT.pdf:648: Dredging activity would be undertaken 24 hours a day.

IBPB8270R001F01_EIA REPORT.pdf:648:Could significantly impact the ✓ (Tees Capital dredging will deepen the approach Capital dredging will deepen the approach

IBPB8270R001F01_EIA REPORT.pdf:649:Within 500m of any Information provided on MAGIC indicates that the proposed dredging will occur within 500m of higher sensitivity habitats:

IBPB8270R001F01_EIA REPORT.pdf:649: Environment Agency guidance suggests dredge area within the water body is multiplied by 1.5 to get an approximate area of impact

IBPB8270R001F01_EIA REPORT.pdf:650: Is in an estuary and could affect fish ✓ There is a possibility that the dredging would There is a possibility that dredging in the

IBPB8270R001F01_EIA REPORT.pdf:650: Could affect water clarity, ✓ Yes, dredging will be required for longer than 14 days

IBPB8270R001F01_EIA REPORT.pdf:651: It disturbs sediment with ✓ Sediment sampling indicates that the sediments to be dredged do not contain levels of

IBPB8270R001F01_EIA REPORT.pdf:651: area waters only) Report so are not considered further here. The capital dredging will occur within 2km of

IBPB8270R001F01_EIA REPORT.pdf:652: However the proposed dredging will not give rise to changes in nutrient concentrations

IBPB8270R001F01_EIA REPORT.pdf:652: Biology: fish Yes The dredging could potentially impact on migratory fish due to the sediment plume being

IBPB8270R001F01_EIA REPORT.pdf:652: dredging and associated plume will be longer than 14 days.

IBPB8270R001F01_EIA REPORT.pdf:653: Biology: fish Yes The dredging could potentially impact on migratory fish due to the sediment plume being

IBPB8270R001F01_EIA REPORT.pdf:653: dredging and associated plume will be longer than 14 days.

IBPB8270R001F01_EIA REPORT.pdf:659: It disturbs sediment with contaminants ✓ Reclamation will be undertaken using dredged material predominantly made up of granular These activities

Appendix 1Teesport HRO.pdf:1:7. Power to dredge

Appendix 1Teesport HRO.pdf:4:Power to dredge

Appendix 1Teesport HRO.pdf:4:affording access to the works by vessels from time to time deepen, dredge, scour, cleanse, alter

Appendix 1Teesport HRO.pdf:4:dredged by them.

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:4:8.21 Offshore disposal of dredged material 13

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:6: • Capital dredging of the approach channel to the proposed NGCT as well as creation of a new berth

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:6: pocket (equating to dredging of up to 4.8 million m3 of material).

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:6: • Disposal of dredged material (through a combination of beneficial re-use and offshore disposal).

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:6: with dredged material and beneficial use of dredged material for raising of land levels within the

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:6:Dredging is proposed to be carried out using a combination of a trailing suction hopper dredger (TSHD), a

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:6:cutter suction dredger (CSD) and a backhoe dredger (BD).

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:6:The reclamation, if required, will be carried out using dredged sands and mudstone. It is anticipated that

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:6:Mudstone will be used for reclamation above water level. Dredged sand and mudstone will also be used to

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:7:maintenance dredging strategy within the estuary (e.g. the annual volume dredged is not predicted to

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:7:maintenance dredged material would be disposed of at the existing disposal sites in Tees Bay, as currently

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:7:Approach channel and berth pocket dredge

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:7:The proposed dredged depth of 14.5m below CD in the navigation channel has been chosen to maximise

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:7:Dredging plant

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:7:There is likely to be a requirement to utilise a number of different types of dredger depending on the nature

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:7:of the material being dredged and the placement option for the material. Therefore, for different parts of the

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:7:dredging, it will be necessary to use a TSHD, CSD or BD. The environmental implications of using these

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:7:dredgers have been assessed and no other alternatives exist that could undertake the work.

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:7:Disposal of dredged material

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:7:A number of scenarios for the disposal of dredged material have been considered, each of which involves

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:7:the placement of dredged material at a number of possible disposal (placement) locations. At this stage,

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:7:option of beneficially re-using dredged material from the proposed NGCT, possibly linking with the aims and

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:7:desires of the Tees Estuary Partnership. For the purposes of the EIA, it has been assumed that dredged

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:8:Newport Bridge through the placement of dredged material (this area is included within the marine licence

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:8:application area). It is proposed that maintenance dredged material is used for this purpose because its

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:8:properties are more suitable for the intended use compared with material arising from the capital dredging.

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:8:While this does not, strictly, represent alternative use of dredged material arising directly from the proposed

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:8:intertidal habitat and would represent an alternative use for dredged material arising from maintenance

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:8:dredging activity in the Tees.

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:9: • Offshore disposal of dredged material.

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:10:to occur within the immediate vicinity of the dredger during construction. Immediately outside of this zone,

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:10:dredged or depositing within an already dredged area.

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:11:Best practice measures would be adopted during the dredging process to minimise the potential for re-

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:11:suspension of sediments as a result of dredging or runoff from the reclamation. In addition, the following

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:11: undertaken in long strips along the axis of the estuary rather than dredging across the width of the

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:11: river. This is to reduce both the extent and impact of the dredged plume, as any plume generated

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:11: by operations has been predicted to remain on the same side of the river as the dredging operation.

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:11: This methodology will ensure that a completed strip of the river is clear before the dredger is

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:12:intertidal area with maintenance dredged silt, thereby enhancing the ecological value of the intertidal area

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:12: • Direct loss of intertidal due to reclamation and capital dredging.

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:12: • Effects of sediment deposition on intertidal food resources due to capital dredging.

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:13:Impacts to fish as a result of direct uptake during dredging is considered to be of negligible significance, as

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:13:fish would locally distribute themselves to avoid the risk being realised. The proposed dredge and

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:13:in the same way as routine dredging and other construction activities, through co-ordination via the Harbour

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:14:in advance of capital dredging within the approach channel or the deep-water berth area, or in advance of

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:16:dredging and reclamation. No impact on consented discharges is predicted. The controls outlined in

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:16:Section 8.2 (with regard to minimising sediment plume dispersion during dredging) would be implemented

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:17:8.21 Offshore disposal of dredged material

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:17:The NGCT is predicted to generate up to approximately 4.8 million m 3 of dredged material. Of this total,

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:17:maintenance dredgings, the effect of depositing fine material at Tees Bay C will be of minor significance.

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:17: • Ongoing maintenance dredging (consented and ongoing).

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:17:The potential for cumulative effects only arises should the dredging for the NGCT scheme and York Potash

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:18: • Undertaking dredging operations using a TSHD in long strips along the axis of the estuary rather

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:18: than dredging along the width of the river. This is to reduce both the extent and impact of the

PB8270-RHD-ZZ-XX-RP-Z-0002.pdf:18: plume. If dredging is to undertaken during the winter period, this would allow one side of the river

Licence Document (Marine).pdf:5: - Capital dredging of the approach channel to the proposed NGCT as well as

Licence Document (Marine).pdf:5: creation of a new berth pocket (equating to dredging of up to 4.8 million m3

Licence Document (Marine).pdf:5: - Disposal of dredged material (through a combination of beneficial re-use

Licence Document (Marine).pdf:6:Activity 1.1 - Offshore disposal of dredged material

Licence Document (Marine).pdf:6:Activity type Disposal of dredged material

Licence Document (Marine).pdf:6:Description Disposal of up to 3,830,000m3 of capital dredged material

Licence Document (Marine).pdf:6:28/2/2022 31/12/2029 Clay 5661739 6511000 Dredge

Licence Document (Marine).pdf:6: Hopper Dredger (THSD) or disposal barges would

Licence Document (Marine).pdf:6: transport dredged material from the proposed dredge

Licence Document (Marine).pdf:6: PDT's intention is to undertake the dredging and disposal

Licence Document (Marine).pdf:6:Programme of works The dredging and disposal activity would be undertaken

Licence Document (Marine).pdf:7: dredge and disposal incrementally throughout the lifespan

Licence Document (Marine).pdf:7: of the licence, utilising its own dredging plant as far as

Licence Document (Marine).pdf:7: possible. The overall durations for the proposed dredge

Licence Document (Marine).pdf:7: Dredging granular material and clays using a TSHD is

Licence Document (Marine).pdf:7: dredger.

Licence Document (Marine).pdf:7: Dredging mudstone using a Cutter Suction Dredger (CSD)

Licence Document (Marine).pdf:7: production rate of the dredger.

Licence Document (Marine).pdf:7: 1035m, with the potential for reclamation using dredged

Licence Document (Marine).pdf:7: using dredged sands and mudstone.

Licence Document (Marine).pdf:9:Activity type Alternative use of dredged material

Licence Document (Marine).pdf:9:Description A proportion of the material dredged from the Tees estuary

Licence Document (Marine).pdf:9: to approximately 920,000m3 of dredged material would be

Licence Document (Marine).pdf:9: using dredged granular materials (sands) and dredged

Licence Document (Marine).pdf:9: encountered during the dredge, suitable fill material would

Licence Document (Marine).pdf:9: Granular material will be dredged using a TSHD. This

Licence Document (Marine).pdf:9: Mudstone will be dredged using a CSD or backhoe. This

Licence Document (Marine).pdf:9: onshore using either a floating pipeline (where dredging

Licence Document (Marine).pdf:9: the reclamation) or a sunken pipeline (where dredging is

Licence Document (Marine).pdf:10: of the new quay wall, if dredged material is to be placed

Licence Document (Marine).pdf:10: directly behind the quay, or earlier if the dredged material

Licence Document (Marine).pdf:10: The time required to dredge 1,100,000 m3 of granular

Licence Document (Marine).pdf:10: dependent on the size of the dredger. The time required

Licence Document (Marine).pdf:10: to dredge 3,700,000m3 of mudstone will be approximately

Licence Document (Marine).pdf:10: the dredger). Dredging is to be undertaken 24 hours a day.

Licence Document (Marine).pdf:10: approximately 40 weeks. Dredging and disposal is to be

Licence Document (Marine).pdf:10:Activity 4.1 - Habitat enhancement using maintenance dredged material

Licence Document (Marine).pdf:10:Activity type Alternative use of dredged material

Licence Document (Marine).pdf:11: Maintenance dredged material, supplied by PDT, would

Licence Document (Marine).pdf:11: dredged material to the TRT to allow the above habitat

Licence Document (Marine).pdf:11: up to 6,000m3 of maintenance dredged material to the

Licence Document (Marine).pdf:11: be undertaken. Maintenance dredged material would be

Licence Document (Marine).pdf:11: pumped onto the intertidal from the dredge vessel.

Licence Document (Marine).pdf:13:Where a licensed activity comprises dredging or the disposal of dredged material,

Licence Document (Marine).pdf:13:the total quantity of material authorised to be dredged or disposed of in any given

Licence Document (Marine).pdf:13:For each time period, the actual quantity dredged or disposed of shall be calculated by

Licence Document (Marine).pdf:13:adding the quantity of material dredged or disposed of during that time period under

Licence Document (Marine).pdf:13:this version of this licence to that dredged or disposed of under any previous version

Licence Document (Marine).pdf:15: date of capital dredging and disposal for NGCT and, subject to the outcome of that discussion, will provide either of the

Licence Document (Marine).pdf:15: following to the MMO no later than 3 months in advance of the proposed start date of capital dredging and disposal:

Licence Document (Marine).pdf:15: - Written confirmation that disposal of dredged material from the NGCT project will not temporally coincide with

Licence Document (Marine).pdf:15: that arising from the South Bank Quay Phase 1 project (meaning that no single phase of the capital dredging and

Licence Document (Marine).pdf:15: - Written confirmation that the total (aggregated) quantity of dredged material to be disposed would not exceed 1.34

Licence Document (Marine).pdf:15: dredging and disposal from NGCT could temporally coincide (meaning that any phase of the capital dredging and

Licence Document (Marine).pdf:15: apparent that the dredging and disposal programmes for NGCT and the South Bank Quay project could (i)

Licence Document (Marine).pdf:16: temporally coincide and (ii) the total (aggregated) quantity of dredged material to be disposed could exceed 1.34

Licence Document (Marine).pdf:16: environmental impacts of disposal of dredged material.

Licence Document (Marine).pdf:16: To minimise cumulative environmental impacts from the disposal of dredged material.

Licence Document (Marine).pdf:16:5.2.7 If dredging activities have not been completed within 3 years of the date of the last sampling (August 2019), a sediment

Schedule 7 - Archaeological WSI.pdf:5:The assessment by AOC did identify that the channel dredging, deep water berth and construction of the

Schedule 7 - Archaeological WSI.pdf:5:impact, however, was considered low due to the levels of historic dredging that has taken place within the

Schedule 7 - Archaeological WSI.pdf:6:dredging of the approach channel will be undertaken to provide the required access to the proposed

Schedule 7 - Archaeological WSI.pdf:6:Details of the boundaries of capital dredging for the approach channel and the locations of the disposal

Schedule 7 - Archaeological WSI.pdf:7: Capital dredging within the existing dredged approach channel to deepen the channel by 0.4m from

Schedule 7 - Archaeological WSI.pdf:7: Pumping suitable dredged material ashore for use in the reclamation works and for locally raising land

Schedule 7 - Archaeological WSI.pdf:7: Disposal of the balance of the capital dredged material at existing offshore disposal grounds in Tees

Schedule 7 - Archaeological WSI.pdf:7: Capital dredging of deep water berthing areas alongside the proposed quay face (dredged to 16m

Schedule 7 - Archaeological WSI.pdf:7:With respect to the disposal of dredged material, it is proposed to dispose of the majority of the dredged

Schedule 7 - Archaeological WSI.pdf:8:At present, maintenance dredging of the navigation channel and various berthing areas is required

Schedule 7 - Archaeological WSI.pdf:8:existing maintenance dredging strategy will need significant adjustment. It is proposed that maintenance

Schedule 7 - Archaeological WSI.pdf:8:dredgings will be disposed of at the existing disposal sites in Tees Bay, as currently occurs.

Schedule 7 - Archaeological WSI.pdf:8:The construction of the deep water berth and quay wall and capital dredging, however, were considered

Schedule 7 - Archaeological WSI.pdf:9:zone of the River Tees. Similarly, the proposed dredging works will in part impact upon previously

Schedule 7 - Archaeological WSI.pdf:9:given that capital dredging will primarily take place within an existing dredged channel.

Schedule 7 - Archaeological WSI.pdf:13:The construction of the deep water berth and quay wall and capital dredging may impact as yet

Schedule 7 - Archaeological WSI.pdf:13:out in advance of capital dredging within the approach channel or the deep water berth area, or in

Schedule 7 - Archaeological WSI.pdf:15:undertaken in advance of construction and dredging for NGCT, all collected cores and samples will be

Schedule 7 - Archaeological WSI.pdf:17:low given that capital dredging will primarily take place within an existing dredged channel.

Schedule 7 - Archaeological WSI.pdf:17:It is envisaged that geophysical survey may be required for NGCT in order to inform the dredging

Schedule 7 - Archaeological WSI.pdf:17:be present within the footprint of proposed dredging activity.

Schedule 7 - Archaeological WSI.pdf:19:and PD Teesport prior to dredging and construction works commencing.

Schedule 7 - Archaeological WSI.pdf:19:Any archaeological discoveries that come to light during the course of the NGCT dredging and

Schedule 7 - Archaeological WSI.pdf:28:Description: Found in Tees by Mr Watkinson whilst Dredging. Stone ware flagon. Cracked. There is a hole

Schedule 7 - Archaeological WSI.pdf:28:in the side where it was hit by the bucket of the dredger.

Schedule 7 - Archaeological WSI.pdf:28:Description: A Neolithic stone axe head was found in 1892. It was dredged from the River Tees about a

Schedule 7 - Archaeological WSI.pdf:29:discoveries of archaeological interest from dredging within MAI licence areas. Between 2005 and 2014,

Schedule 7 - Archaeological WSI.pdf:29:330 separate reports have been filed addressing over 1000 finds. The MAI protocol for marine dredging

Schedule 7 - Archaeological WSI.pdf:29:reflects discoveries under similar conditions to the capital dredging for NGCT and the methodology is thus

Schedule 7 - Archaeological WSI.pdf:30: Capital dredging within the existing dredged approach channel; to deepen the channel by 0.4m from

Schedule 7 - Archaeological WSI.pdf:30: Pumping suitable dredged material ashore for use in the reclamation works and for locally raising land

Schedule 7 - Archaeological WSI.pdf:30: Capital dredging of deep water berthing areas alongside the proposed quay face (dredged to 16m

Schedule 7 - Archaeological WSI.pdf:30: Capital dredging:

Schedule 7 - Archaeological WSI.pdf:30:  Obstructions encountered by the draghead or dredge bucket on the seafloor; and

Schedule 7 - Archaeological WSI.pdf:30:  Archaeological material observed within dredged material or trapped in the dredge gear.

Schedule 7 - Archaeological WSI.pdf:30: Use of dredged material:

Schedule 7 - Archaeological WSI.pdf:32:intrusive works (dredging or piling) will need to cease in the vicinity of this position and the position of the

Schedule 7 - Archaeological WSI.pdf:32:be the position of the find itself, if known, or the position of the dredger at the time of the discovery. The

Returns.pdf:3: in advance of the proposed start date of capital dredging and disposal for NGCT and,

Returns.pdf:3: no later than 3 months in advance of the proposed start date of capital dredging

Returns.pdf:3: - Written confirmation that disposal of dredged material from the NGCT project will

Returns.pdf:3: (meaning that no single phase of the capital dredging and disposal for the two

Returns.pdf:3: - Written confirmation that the total (aggregated) quantity of dredged material to be

Returns.pdf:3: assessed within the NGCT EIA), should it be apparent that the dredging and

Returns.pdf:3: capital dredging and disposal for the two projects could occur at the same time); or,

Returns.pdf:3: that the dredging and disposal programmes for NGCT and the South Bank Quay

Returns.pdf:3: dredged material to be disposed could exceed 1.34 million m3 per month, with a

Returns.pdf:3: environmental impacts of disposal of dredged material.

Returns.pdf:3:Open If dredging activities have not been completed within 3 years of the date of the last

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:3: • Capital dredging of the approach channel to the Project as well as creation of

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:3: a new berth pocket (equating to dredging of up to 4.8 million m3 of material).

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:3: • Disposal of dredged material (through a combination of beneficial re-use

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:4:Figure 1a: Works Area No. 1 (small polygon) and dredge area (large polygon).

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:6: 9. To carry out any form of dredging within the UK marine licensing area (whether

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:10: • Impacts of dredging upon Vopak foreshore

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:10:dredging. Modelling included within the EIA indicates that the river basin dredging

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:11:affected by this dredging proposal. Data on benthic invertebrate communities

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:12:It was recognised that due to the size and scale of the proposed dredge, this could

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:13:and reuse of dredged material on land. The material to be re-used within the

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:13:of dredged material (containing high levels of organic matter) were to be stockpiled

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:13:on site for a significant duration of time. However, the dredged material to be used

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:13:of between 1.2% and 8.7% within the proposed dredge footprint. The placement of

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:14: • Undertaking dredging operations using a trailer suction hopper dredger

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:14: (TSHD) in long strips along the axis of the estuary rather than dredging along

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:14: • Locating the cutter suction dredger (CSD) on either the western or eastern

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:15: 24 – Implementation of The Northern Gateway Container Terminal: Dredging

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:16:Sediment and Water Quality) and Section 26 (Offshore Disposal of Dredged

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:16:and maintenance dredging through remobilisation, dispersion and redistribution of

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:16:Cefas were consulted with regard to dredge and disposal activities and that an

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:16:concentrations in the Project dredge area, but there are raised levels at nearby area

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17:Cefas requested additional sampling if the dredging has not started after 2 years

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17:will be required, and approval needed before dredging can commence.

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17:Bay C disposal site, should disposal of capital dredged material arising from the

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17:is highly unlikely that the three major dredging projects would be permitted within the

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17:months in advance of the proposed start date of capital dredging and disposal for

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17:capital dredging and disposal:

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: a) Written confirmation that disposal of dredged material from the NGCT project

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: 1 project (meaning that no single phase of the capital dredging and disposal

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: b) Written confirmation that the total (aggregated) quantity of dredged material to

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: dredging and disposal from NGCT could temporally coincide (meaning that

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: any phase of the capital dredging and disposal for the two projects could

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: that the dredging and disposal programmes for NGCT and the South Bank

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: quantity of dredged material to be disposed could exceed 1.34 million m3 per

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17: predicted cumulative environmental impacts of disposal of dredged material.

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:17:as a result of the dredge and disposal activity.

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:18: • Disposal of dredged material

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:19: • Disposal of dredged material – Section 5.6

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:20:Dredge and Disposal

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:20: • Condition mandating additional sampling if the dredging has not started after

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:20: capital dredging and disposal for NGCT, in order to mitigate any in-

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:20: combination dredge and disposal impacts.

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:The impact of capital dredging on the existing marine communities is described in

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:Section 9.5 of the ES. Following the completion of the dredging, the marine

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:community within the dredge footprint will recolonise the impacted area. The nature

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:Given that the navigation channel is dredged to geological material, the proposed

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:capital dredging is expected to result in the exposure of a similar sediment type to

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:colonise within the proposed dredge area will be of a similar structure to those which

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:Any recolonisation of the seabed following the capital dredging would be beneficial

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:compared with the immediate post-dredge situation but maintenance dredging would

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:significance on the benthic community following completion of the capital dredge.

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:The impact of maintenance dredging on the existing marine communities is

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:effects on the existing maintenance dredging strategy, and no changes to the

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:present-day maintenance dredging strategy are necessary. As such, there would be

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:21:no impact on marine communities as a result of the maintenance dredging

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:22: • Direct uptake and disturbance of fish during capital dredging.

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:22: • Impacts caused by increased suspended sediment during capital dredging

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:24:dredging and pilling works so that the likelihood of potential impacts to fish receptors

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:25:sediment would be negligible. The applicant also noted that the effect of the dredging

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:25:dredged approach channel.

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:26:PDT would manage any potential conflicts in the same way as routine dredging and

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:26:activity is during the dredging that will take place close to the mouth of the estuary

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:26:where some sailing is undertaken. However, given the limited duration of dredging in

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:26:this area and particularly the fact that the dredging would take place within an

Schedule 8_ 20220302_EIA_Consent_Decision_Response MLA202000079.pdf:26:Commercial vessels will be confined to navigating within the dredged channel (as at

Decision Letter (Marine).pdf:1:dredging and disposal of dredged material.

Marine Coordinate Schedules.pdf:5:Dredge Area

MLA_2021_00215-Licence Document (Marine)-20.pdf:5:The revised pontoon linkspan arrangement requires additional capital dredging and

MLA_2021_00215-Licence Document (Marine)-20.pdf:5:disposal of dredged materials, a new combi wall structure and new sheet pile walls.

MLA_2021_00215-Licence Document (Marine)-20.pdf:6: quay walls as well as a capital dredge of the new berth

MLA_2021_00215-Licence Document (Marine)-20.pdf:9:Activity 1.2 - Capital dredging at new Ro Ro 2 berth

MLA_2021_00215-Licence Document (Marine)-20.pdf:9:Activity type Navigational dredging (capital)

MLA_2021_00215-Licence Document (Marine)-20.pdf:9: and foyboat pontoon, capital dredging will need to be

MLA_2021_00215-Licence Document (Marine)-20.pdf:9:Methodology 15,300m3 of material will be removed across two dredge

MLA_2021_00215-Licence Document (Marine)-20.pdf:9: side slopes and over dredge tolerance. 3,000m3 of this

MLA_2021_00215-Licence Document (Marine)-20.pdf:9: material will be required to achieve a target dredge depth

MLA_2021_00215-Licence Document (Marine)-20.pdf:9: overdredge tolerance the maximum dredge depth would

MLA_2021_00215-Licence Document (Marine)-20.pdf:9: 1,700m3 will be required to achieve a target dredge depth

MLA_2021_00215-Licence Document (Marine)-20.pdf:9: of -2.7m CD (-3.2m CD with overdredge tolerance) to allow

MLA_2021_00215-Licence Document (Marine)-20.pdf:10: unconsolidated material will be dredged over 1-3 weeks,

MLA_2021_00215-Licence Document (Marine)-20.pdf:10: material will be dredged within 5 weeks, depending on port

MLA_2021_00215-Licence Document (Marine)-20.pdf:10:Activity type Disposal of dredged material

MLA_2021_00215-Licence Document (Marine)-20.pdf:10:Methodology A backhoe dredger will be used to remove this material.

MLA_2021_00215-Licence Document (Marine)-20.pdf:10:Programme of works Dredging of the unconsolidated material will take

MLA_2021_00215-Licence Document (Marine)-20.pdf:12:Where a licensed activity comprises dredging or the disposal of dredged material,

MLA_2021_00215-Licence Document (Marine)-20.pdf:12:the total quantity of material authorised to be dredged or disposed of in any given

MLA_2021_00215-Licence Document (Marine)-20.pdf:12:For each time period, the actual quantity dredged or disposed of shall be calculated by

MLA_2021_00215-Licence Document (Marine)-20.pdf:12:adding the quantity of material dredged or disposed of during that time period under

MLA_2021_00215-Licence Document (Marine)-20.pdf:12:this version of this licence to that dredged or disposed of under any previous version

MLA_2021_00215-Licence Document (Marine)-20.pdf:13:5.2.1 Pre and post dredge surveys must be submitted, together with an interpretation of the difference between the survey

MLA_2021_00215-Licence Document (Marine)-20.pdf:13: results and a volume calculation within 4 weeks of completion of each dredge campaign.

MLA_2021_00215-Returns-21.pdf:1: working days before the works including piling and dredging commencing

MLA_2021_00215-Returns-21.pdf:3:MLA/2021/00215/R4 R4.1 within 4 weeks of Dredge Surveys

MLA_2021_00215-Returns-21.pdf:3: dredge campaign

MLA_2021_00215-Returns-21.pdf:3:Open Open Pre and post dredge surveys must be submitted, together

MLA_2021_00215-Returns-21.pdf:3: R4.2 within 4 weeks of of completion of each dredge campaign.

MLA_2021_00215-Returns-21.pdf:3: dredge campaign

MLA_2021_00215-Returns-21.pdf:3: dredge campaign

MLA_2021_00215-Returns-21.pdf:3: dredge campaign

MLA_2021_00215-Licence Document (Marine)-16.pdf:5:The revised pontoon linkspan arrangement requires additional capital dredging and

MLA_2021_00215-Licence Document (Marine)-16.pdf:5:disposal of dredged materials, a new suspended deck structure and new sheet pile

MLA_2021_00215-Licence Document (Marine)-16.pdf:6: adjacent quay walls as well as a capital dredge of the new

MLA_2021_00215-Licence Document (Marine)-16.pdf:9:Activity 1.2 - Capital dredging at new Ro Ro 2 berth

MLA_2021_00215-Licence Document (Marine)-16.pdf:9:Activity type Navigational dredging (capital)

MLA_2021_00215-Licence Document (Marine)-16.pdf:9: and foyboat pontoon, capital dredging will need to be

MLA_2021_00215-Licence Document (Marine)-16.pdf:9:Methodology 15,300m3 of material will be removed across two dredge

MLA_2021_00215-Licence Document (Marine)-16.pdf:9: side slopes and over dredge tolerance. 3,000m3 of this

MLA_2021_00215-Licence Document (Marine)-16.pdf:9: material will be required to achieve a target dredge depth

MLA_2021_00215-Licence Document (Marine)-16.pdf:9: overdredge tolerance the maximum dredge depth would

MLA_2021_00215-Licence Document (Marine)-16.pdf:10: 1,700m3 will be required to achieve a target dredge depth

MLA_2021_00215-Licence Document (Marine)-16.pdf:10: of -2.7m CD (-3.2m CD with overdredge tolerance) to allow

MLA_2021_00215-Licence Document (Marine)-16.pdf:10: unconsolidated material will be dredged over 1-3 weeks,

MLA_2021_00215-Licence Document (Marine)-16.pdf:10: material will be dredged within 5 weeks, depending on port

MLA_2021_00215-Licence Document (Marine)-16.pdf:10:Activity type Disposal of dredged material

MLA_2021_00215-Licence Document (Marine)-16.pdf:10:Methodology A backhoe dredger will be used to remove this material.

MLA_2021_00215-Licence Document (Marine)-16.pdf:10:Programme of works Dredging of the unconsolidated material will take

MLA_2021_00215-Licence Document (Marine)-16.pdf:12:Where a licensed activity comprises dredging or the disposal of dredged material,

MLA_2021_00215-Licence Document (Marine)-16.pdf:12:the total quantity of material authorised to be dredged or disposed of in any given

MLA_2021_00215-Licence Document (Marine)-16.pdf:12:For each time period, the actual quantity dredged or disposed of shall be calculated by

MLA_2021_00215-Licence Document (Marine)-16.pdf:12:adding the quantity of material dredged or disposed of during that time period under

MLA_2021_00215-Licence Document (Marine)-16.pdf:12:this version of this licence to that dredged or disposed of under any previous version

MLA_2021_00215-Licence Document (Marine)-16.pdf:13:5.2.1 Pre and post dredge surveys must be submitted, together with an interpretation of the difference between the survey

MLA_2021_00215-Licence Document (Marine)-16.pdf:13: results and a volume calculation within 4 weeks of completion of each dredge campaign.

MLA_2021_00215-TG Notice 13.8-3.pdf:1: THE SQUARE, West side, From a point 5 metres north of its junction with Stone Row (at the along with new sheet piles to replace the adjacent quay walls as well as a capital dredge of

MLA_2021_00215-Decision Letter (Marine)-14.pdf:1:replace the adjacent quay walls as well as a capital dredge of the new berth pocket.

MLA_2021_00215-Decision Letter (Marine)-14.pdf:3:The dredging site is within port limits and the Harbour Authority may wish to issue local

MLA_2021_00215-Returns-15.pdf:1: MLA/2021/00215/R4 within 4 weeks of Dredge Surveys

MLA_2021_00215-Returns-15.pdf:1: dredge campaign

MLA_2021_00215-Returns-15.pdf:1: Open Pre and post dredge surveys must be submitted, together with an interpretation of the

MLA_2021_00215-Returns-15.pdf:1: completion of each dredge campaign.

MLA_2021_00215-APPLICATION-FORM.pdf:2:The revised pontoon linkspan arrangement will also require additional capital dredging

MLA_2021_00215-APPLICATION-FORM.pdf:2:(and disposal of dredged materials), a new suspended deck structure and new sheet

MLA_2021_00215-APPLICATION-FORM.pdf:3:and chemical analysis requirements to inform the dredge and disposal strategy for the

MLA_2021_00215-APPLICATION-FORM.pdf:9:process for dredging?

MLA_2021_00215-APPLICATION-FORM.pdf:9:The accelerated licensing process applies to certain types of small-scale low-risk dredging activity.

MLA_2021_00215-APPLICATION-FORM.pdf:10: Dredging at RiverA. Create one site for RiverA and add dredging as an activity.

MLA_2021_00215-APPLICATION-FORM.pdf:10: Dredging and quay wall improvements at RiverA. Create 2 locations: one for the

MLA_2021_00215-APPLICATION-FORM.pdf:10: dredging in front of the new quay area and one for the quay wall improvements.

MLA_2021_00215-APPLICATION-FORM.pdf:10: Dredging at RiverA and removal of large concrete block within the dredge area.

MLA_2021_00215-APPLICATION-FORM.pdf:10: dredging.

MLA_2021_00215-APPLICATION-FORM.pdf:10:Capital dredging at Tees Dock Number 2 Navigational dredging

MLA_2021_00215-APPLICATION-FORM.pdf:11:Disposal of TEES BAY C Disposal of dredged

MLA_2021_00215-APPLICATION-FORM.pdf:12:the adjacent quay walls as well as a capital dredge of the new berth pocket. The works

MLA_2021_00215-APPLICATION-FORM.pdf:12:Mitigation through the use of an environmental grab is required during capital dredging

MLA_2021_00215-APPLICATION-FORM.pdf:13:Tees Dock Number 2 Ro Ro - Capital dredging at new Ro Ro 2 berth

MLA_2021_00215-APPLICATION-FORM.pdf:13:Dredging

MLA_2021_00215-APPLICATION-FORM.pdf:13:Navigational dredging (capital)

MLA_2021_00215-APPLICATION-FORM.pdf:14:Capital dredging at new Ro Ro 2 berth

MLA_2021_00215-APPLICATION-FORM.pdf:14:dredging will need to be undertaken to create the new berthing pocket. (Figure 4).

MLA_2021_00215-APPLICATION-FORM.pdf:14:Approximately 15,300m3 of material is required to be removed across two dredge areas

MLA_2021_00215-APPLICATION-FORM.pdf:14:(A and B), a footprint of 6,000m2 including the side slopes and over dredge tolerance.

MLA_2021_00215-APPLICATION-FORM.pdf:14:will be required to achieve a target dredge depth of between -2.7m CD to the east of the

MLA_2021_00215-APPLICATION-FORM.pdf:14:new pontoon and -10.9m CD to the north of the pontoon. With a 0.5m overdredge

MLA_2021_00215-APPLICATION-FORM.pdf:14:tolerance the maximum dredge depth would be up to -11.4m CD to the north of the

MLA_2021_00215-APPLICATION-FORM.pdf:14:target dredge depth of -2.7m CD (-3.2m CD with overdredge tolerance) to allow the local

MLA_2021_00215-APPLICATION-FORM.pdf:14:It is anticipated that the unconsolidated material will be dredged over 1-3 weeks,

MLA_2021_00215-APPLICATION-FORM.pdf:14:depending on port operations. The remaining consolidated material will be dredged

MLA_2021_00215-APPLICATION-FORM.pdf:15:Potential impacts arising from capital dredging at discussed in Section 4 of the report.

MLA_2021_00215-APPLICATION-FORM.pdf:15:As mentioned earlier, an environmental dredge is proposed to remove the

MLA_2021_00215-APPLICATION-FORM.pdf:15:Dredging of the unconsolidated sediment will be completed in 1 to 3 weeks. Dredging

MLA_2021_00215-APPLICATION-FORM.pdf:15:Navigational dredging (capital)

MLA_2021_00215-APPLICATION-FORM.pdf:15: dredging

MLA_2021_00215-APPLICATION-FORM.pdf:15: Specific 1.2 Dredge 10.9

MLA_2021_00215-APPLICATION-FORM.pdf:15: below be dredged

MLA_2021_00215-APPLICATION-FORM.pdf:16: dredging

MLA_2021_00215-APPLICATION-FORM.pdf:16: Specific 2.2 Dredge 10.9

MLA_2021_00215-APPLICATION-FORM.pdf:16: below be dredged

MLA_2021_00215-APPLICATION-FORM.pdf:16:dredged per campaign

MLA_2021_00215-APPLICATION-FORM.pdf:17:Disposal of dredged material

MLA_2021_00215-APPLICATION-FORM.pdf:17:A backhoe dredger will be used to remove this material. Please refer to Section 2.5 and

MLA_2021_00215-APPLICATION-FORM.pdf:17:Dredging of the unconsolidated material will take approximately 5 weeks to complete,

MLA_2021_00215-APPLICATION-FORM.pdf:18:Disposal of dredged material

MLA_2021_00215-APPLICATION-FORM.pdf:19:Dredge details

MLA_2021_00215-APPLICATION-FORM.pdf:19:You should provide details of the dredge. This should include the methodology and location. If this has already been

MLA_2021_00215-APPLICATION-FORM.pdf:19:Has the dredged material been analysed?

MLA_2021_00215-APPLICATION-FORM.pdf:19:The disposal of dredged material to sea should be considered a last resort. You should provide details of alternatives

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:3:2.5 Capital Dredging 14

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:5:Figure 4 Overview of the anticipated works, including dredging areas, required for the

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:7:The revised pontoon linkspan arrangement will also require additional capital dredging (and disposal of

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:7:dredged materials), a new suspended deck structure and new sheet pile walls.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:10:to be built, along with new sheet piles to replace the adjacent quay walls as well as a capital dredge of the

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:10: 5. Capital dredging of berth pocket to design dredge level;

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:12: 5. DREDGE

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:13: • Clamshell or similar environmental dredge bucket; and,

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:13: • Back-hoe dredger/long-reach excavator.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:13:of the maintenance dredging activity currently within Tees Dock will need to be extended to include the

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:14:Dredging to the required depth will then be undertaken using marine-based plant such as a backhoe dredger

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:14:(see Section 3.5 dredging below).

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:15:2.5 Capital Dredging

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:15:In order to enable access to the new pontoon linkspan and foyboat pontoon, capital dredging will need to

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:15:to be removed across two dredge areas (A and B) including the side slopes and an overdredge tolerance

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:15:of approximately 13,600m3 of material will be required to achieve a target dredge depth of between -2.7m

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:15:CD to the east of the new pontoon and -10.9m CD to the north of the pontoon. With a 0.5m overdredge

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:15:tolerance the maximum dredge depth would be up to -11.4m CD to the north of the pontoon and -3.2m CD

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:15:the removal of 1,700m3 will be required to achieve a target dredge depth of -2.7m CD (-3.2m CD with

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:15:overdredge tolerance) to allow the local foyboats access to the new berth. The maximum footprint over

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:15:which dredging may occur, as described above, is approximately 6,000m2.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:15:The material to be removed through capital dredging is currently anticipated to be comprised of a superficial

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:15:within the dredge footprint which indicates that the superficial sediments are not suitable for disposal

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:15:impacts to water quality). Therefore, an environmentally sensitive method of dredging, such as clamshell

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:15:or another dredging technique with a closed bucket, will be used to minimise any potential sediment plume.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:15:This material will be disposed at a suitably licenced site on land. Dredging of this sediment is anticipated to

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:15:mudstone will be dredged using a back-hoe dredger either from land or a stable platform within the dock

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:16:(TY150). This site is licenced to accept capital dredged material and has recently accepted capital dredged

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:17: DREDGING

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:17: DREDGING

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:18:2.9.1 Maintenance dredging

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:18:There is an existing requirement for maintenance dredging of the approach channel and various berthing

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:18:pockets in the lower Tees estuary, including within Tees Dock. The existing maintenance dredging regime

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:18:is well established, and the locations, volumes and frequency of dredging are well recorded. Tees Dock is

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:18:west quay of Tees Dock (Figure 5). These various aspects of the existing maintenance dredging are

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:18:discussed in detail in the PDT Maintenance Dredging Annual Review (Royal HaskoningDHV, 2019).

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:18:As a result of the proposed scheme, the maintenance dredging strategy will be adjusted to incorporate the

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:18:maintenance dredging within Tees Dock are expected. It is anticipated that the material will be comprised

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:18:existing maintenance disposal site Tees Bay A (TY160). Future maintenance dredging requirements at the

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:18:berth would be undertaken using standard PDT maintenance dredging plant and procedures.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:22:The proposed scheme has potential to generate waste, primarily as a result of the capital dredging required

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:22:during the construction phase as well as any maintenance dredging that is required during the operational

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:22:phase. The capital dredge will involve the removal of unconsolidated sediments which are not suitable for

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:22:in line with the waste hierarchy. The remaining dredged material is suitable for disposal offshore.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:23:requirements to inform the dredge and disposal strategy for the proposed scheme. A sample plan was

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:23: • One sample station should be taken from dredging zone A and sub-sampled at the surface, mid-

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:24: • One sample station should be taken from dredging zone B and sub-sampled at the surface, mid-

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:25:The proposed scheme will involve a capital dredge and the installation of a new pontoon linkspan with a

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:25:Tees Dock. The central channel within Tees Dock is currently maintenance dredged to -10.9m CD, with the

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:26:proposed to be dredged to and maintained at -10.9m CD, which aligns with water depths in the adjacent

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:26:Berth 5. Additional dredging to -2.7m CD is proposed to the north of the pontoon to allow access to the new

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:26:The newly dredged berths will require maintenance dredging and will be included within the current

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:26:maintenance dredge footprint within Tees Dock. Maintenance dredge requirements within Tees Dock are

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:26:monitored regularly and dredged as required. The dredging requirement for the new pontoon linkspan and

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:26:(and volume of) maintenance dredging undertaken within Tees Dock. Therefore, deepening the small area

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:26:4.2.2 Dredging activities

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:26:In order to inform potential impacts to water quality during the dredging activities, sediment sampling and

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:26:analysis within the dredge footprint has been undertaken. Three sample stations were sampled within

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:26:dredge zone A and one sample station was sampled in dredge zone B (Figure 7) using a gravity corer. The

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:26:has been undertaken with regard to Cefas’ Guideline Action Levels (ALs) for the disposal of dredged

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:26:The Cefas ALs are used as part of a ‘weight of evidence’ approach to assessing the suitability of dredged

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:28:The PSA results for the sediment samples indicate that the sediment within the dredge zones is mixed silt

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:4.2.3 Deterioration in water quality due to dredging activities

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:The heavy metal and PAH analysis results indicate that the unconsolidated sediment within the dredge

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:unconsolidated sediment within the dredge footprint has been estimated using the sediment depth (2m) and

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:the area to be dredged and represents less than 3,000m3, a small proportion of the estimated 15,300m3

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:total capital dredge volume. Depending on port operations, dredging of the unconsolidated soft material will

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:Sediment re-suspension caused by grab-dredging can be reduced in the following ways:

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:In order to minimise potential impacts to water quality during the dredging process it is proposed that the

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:maintenance and inspection of seals and of bucket/grab and barge integrity (both for dredging and unloading

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:operations) through the appointment of a suitably qualified and experienced specialist dredging contractor

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:with appropriate equipment. Losses caused by grab dredging can be reduced by up to 50% by using

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:operational during dredging activities.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:conditions is small in scale with three distinct zones: an initial mixing zone where the dredge mixes materials

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:be dredged using a back-hoe dredger and, depending on port operations will take up to 5 weeks to complete.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:These layers are of geological origin and are therefore inert. Dredging of this material may cause some

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:that would be resuspended by the dredging activities would be small in scale and localised, settling out of

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:33:suspension within 100m of the dredging activity, indicating that any potential impacts to water quality would

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:34:4.2.5 Maintenance dredging

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:34:As a result of the proposed scheme, the maintenance dredging strategy will be adjusted to incorporate the

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:34:volumes/types of materials requiring to be dredged from the Tees Dock berths are anticipated. The

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:34:additional maintenance activities will not be discernible above current maintenance dredging within Tees

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:34:Dock. Material from maintenance dredging would be disposed of at the existing maintenance disposal site

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:34:Tees Bay A (TY160), as currently occurs. Future maintenance dredging requirements at the berth would

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:34:be undertaken using standard PDT maintenance dredging plant and procedures. As such no significant

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:34:operational impacts on water quality are anticipated from future maintenance dredging requirements.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:34:refurbish existing revetment and abutment sheet pile walls and undertake a capital dredge within the new

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:35:The potential footprint within which proposed dredge activities may occur is approximately 6,000m2 including

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:35:side slopes (Figure 4) the majority of which will be outside the current maintenance dredged footprint within

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:35:Tees Dock. Dredging will not be required across the entire footprint due to existing water depths, and will

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:35:therefore be targeted to achieve the necessary depths required. Within dredged areas, the existing benthic

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:35:dredging required to maintain the advertised dredge depth. Where sediment resettles, recruitment of the

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:35:the surrounding Tees Dock and River Tees area, all of which are regularly maintenance dredged and

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:36:Due to the small-scale nature of the dredge and footprint of the pontoon linkspan refurbishment works, and

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:36:As discussed in Section 4.2 the unconsolidated sediment within the dredge areas is not suitable for offshore

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:36:disposal due to the contamination levels present. Therefore, the dredge will be undertaken using an

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:36:environmentally sensitive technique, such as a clamshell dredger or similar, to minimise resuspension of

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:36:sediment during dredging activities. As discussed in Section 4.2.3, the approximate volume of

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:36:contaminated sediment within the dredge footprint is estimated to be 3,000m3, a small proportion of the total

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:36:dredge volume of 15,300m3. With the use of an environmental grab (e.g. clamshell dredge bucket, or

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:36:sediment that would be resuspended by the dredging activities would be small in scale. The literature also

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:36:indicates that the effect would be highly localised, settling out of suspension within 100m of the dredging

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:37:4.4.2.3 Underwater noise during dredging and vessel movements

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:37:low frequencies (Popper et al., 2003; Popper and Fay, 2011), which puts them at risk from dredging noise.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:37:No study has looked at dredging noise specifically, but avoidance of low-frequency vessel noise by some

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:37:Therefore, the addition of the dredging activity and vessel movements over the construction period will not

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:37:4.4.2.4 Maintenance dredging

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:37:As discussed in Section 4.2.5, the newly deepened berth will require maintenance dredging therefore,

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:37:PDT’s maintenance dredging strategy will be adjusted to incorporate the newly deepened Number 2 Ro-Ro

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:37:berth. It is not anticipated that the addition of dredging at the new Number 2 Ro-Ro pontoon will significantly

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:37:increase the dredging requirement within Tees Dock and potential impacts will not be discernible above

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:37:dredging activities.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:39:4.6.2 Underwater noise during dredging and vessel movements

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:39:Noise levels from the vessels and dredging activity would not result in any risk of permanent auditory injury

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:40:As discussed in Section 4.2, unconsolidated sediments within the proposed dredge areas is not considered

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:40:suitable for offshore disposal due to the levels of contaminants present. Therefore, the dredge of this

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:40:The volume of contaminated sediment within the dredge footprint is approximately 3,000m3, a small

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:40:proportion of the total dredge volume of 15,300m3. With the use of the environmental dredging technique,

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:40:would be potentially released and resuspended by the dredging activities would be small in scale and

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:40:localised, settling out of suspension within 100m of the dredging activity (Bohlen, 1978). It is therefore

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:42:Sediment samples taken from within the capital dredge footprint for physico-chemical analysis indicate that

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:42:and dredging and the maintenance of navigational equipment. PDT also have an in-house oil response unit

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:43:undertaken by road. The unconsolidated capital dredge sediment is not suitable for offshore disposal and

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:43:archaeology present within the dredge or pontoon footprint. The soft sediment is underlain by hard Mercia

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:44:Table 8 are within the Tees and involve piling and or dredging activities and may be undertaken at the same

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:44: MLA/2019/00151 Discharging Terminals - D, and a dredge of the riverbed (with

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:44: L/2019/00220/1 conditions Jetty 1 associated disposal of dredged

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:44: Capital dredging of the approach

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:44: pocket (equating to dredging of up to

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:45: Disposal of dredged material

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:45: demolition, capital dredging, offshore

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:45: disposal of dredged material,

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:45: Facilities Associated dredging operations to

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:47:structure. The proposed scheme also requires a capital dredge to deepen the new berth. Once the works

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:48:Bohlen, W. F. (1978). Factors governing the distribution of dredge-resuspended sediments. Proceedings of

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:48:CIRIA (2000) Scoping the assessment of sediment plumes from dredging. CIRIA Publication C547. London,

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:49:F. (2015) A review of impacts on marine dredging activities on marine mammals. ICES Journal of Marine

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:51: capital dredge in front of the new pontoon. It should be noted that the detailed design has

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:52:  Capital dredging of berth pocket to design dredge level;

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:52:and the footprint of the maintenance dredging activity currently within Tees Dock will need

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:54:existing revetment and abutment sheet pile walls and undertake a capital dredge within the

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:58:capital dredge in front of the new pontoon.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:58: • Capital dredging of berth pocket to design dredge level;

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:58:increase and the footprint of the maintenance dredging activity currently within Tees

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:60:The dredging has the potential to lead to contamination of the water column.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:60:consideration for alternative dredging methods and potential disposal on land.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:60:dredging which have the potential to discover unknown heritage assets. However,

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:67: temporary and intermittent impact. Capital dredging is also

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:67: required which will be undertaken using a clamshell dredger, or

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:67: predicted to fall out of suspension within 100m of the dredging

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:69:river walls and bank seat; and the capital dredging within the footprint for the new berth. Operational

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:69:dredging will be required to maintain the navigable depths of the approach and berth at the new pontoon.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:69:Therefore, two construction activities; piling and capital dredging, and one operational activity; maintenance

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:69:dredging, will be carried forward to the assessment.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:72: • Dredging disposal strategy;

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:72: • Reduce impact of dredging;

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:72: • Retime dredging or disposal;

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:72: • Dredge disposal site selection;

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:72:Therefore, the activities; piling and capital dredging, will be scoped to identify the potential risks to each

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:73: o Appropriate spill kits will be available on board the dredging vessel and all crew will be trained

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:74: Capital Dredging Activity Maintenance Dredging

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:74: body that is heavily therefore not involve the introduction of a new structure to the Tees, however, the capital dredge will cause dredging and

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:74: modified for the same limited resuspension of sediment, and once completed the maintenance dredge requirement will slightly maintenance

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:74: use as the activity? increase the dredging requirement within Tees Dock. dredging)

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:74: release chemicals, are No, the activity will not use any No, the activity will not use dredging only)

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:74: disturb sediment with disturbed will not be at levels of dredged from within Tees

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:74: Phytoplankton / Will the activity affect The piling activity within the marine Dredging of the unconsolidated Maintenance dredging of No

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:74: oxygen levels, nutrients installed sequentially. Only nine and will therefore not be continuous. maintenance dredging of

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:74: or microbial patterns piles to be installed in the marine Following this dredging of the boulder Tees Dock as a whole.

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:75: Capital Dredging Activity Maintenance Dredging

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:75: direct footprint of the dredge represents 0.09% of this lower

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:76: Capital Dredging Activity Maintenance Dredging

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:76: estuary and could affect component of the capital dredge

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:76: fish entering it or could Any underwater noise created during dredge bucket, or similar) will be

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:76: Maintenance dredging of

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:76: Could the activity impact maintenance dredging of

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:76: day) and temporary (piling will take resuspended by the dredging

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:76: Tees Dock 1km from the main Tees 100m of the dredging activity,

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:77: Capital Dredging Activity Maintenance Dredging

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78:The output of Stage 2 Scoping has determined that the following parameters for the capital dredging activity

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78:The following parameters for the maintenance dredging activity have also been identified for Further

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78:Capital Dredge

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78:The capital dredge activity associated with the proposed scheme will increase the dredging requirement

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78:within the Tees and once completed the new berth will require maintenance dredging to maintain the

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78: • Dredging disposal strategy;

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78: • Reduce impact of dredging;

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78: • Retime dredging or disposal;

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78: • Dredge disposal site selection;

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78:The proposed scheme would cause the resuspension of sediment through the capital dredging activity

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78:of the main capital dredge of 15,300m3. Dredging of this soft sediment will be completed in one to three

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78:to the contamination present in this sediment it is proposed that a clamshell or similar dredge is used to

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78:The underlying clay and Mercia mudstone will be dredged using a back-hoe dredger. This material is of

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78:geological origin and is therefore inert and suitable for offshore disposal. The dredging of this material is

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78:not anticipated to give rise to significant SSCs due to its consolidated nature. Therefore, the capital dredging

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78:Maintenance dredge

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:78:Maintenance dredging of the Ro-Ro 2 pontoon will be added to the maintenance dredge protocol for

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:79:2 pontoon berth will add approximately 6,000m2 area to the dredging activities. The approximate area of

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:79:Tees Dock is 185,000m2 therefore the additional dredge represents 3% of Tees Dock. This is not considered

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:79:to be significant and the activity will not be discernible above current levels of maintenance dredging within

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:79:Tees Dock. Therefore, the maintenance dredging activity is in line with the mitigation measures for the Tees

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:79:As discussed in Section 4.2, sediment samples taken from within the dredge footprints were found to

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:79:This contamination is present in the soft unconsolidated component of the dredged material which is

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:79:facility. The remainder of the dredged material (12,300m 3) is comprised of boulder clay and Mercia

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:79:In order to minimise the volume of the unconsolidated material that is suspended during the dredging

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:79:activities a clamshell dredger, or similar, will be used to dredge the material. This dredging method has

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:79:been designed to minimise the resuspension of sediment during the dredging activity, specifically when the

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:79:material is raised from the seabed through the water column. Losses caused by grab dredging can be

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:79:small in scale with three distinct zones: an initial mixing zone where the dredge mixes materials throughout

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:79:that would be resuspended by the dredging activities would be small in scale and highly localised, settling

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:79:out of suspension within 100m of the dredging activity, indicating that any potential impacts to water quality

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:79:the capital dredging activity would not result in a significant non-temporary effect on the water quality of the

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:82:REFURBISHMENT – CAPITAL DREDGE

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:82:sample plan to inform future dredge application. Please see our response below and

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:83: the capital dredge and disposal of material from the Tees Dock RoRo2 pontoon

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:83: 1.2. To facilitate the ponton refurbishment, a capital dredge is required to deepen the

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:83: 11.2m bCD respectively. This will result in a total likely dredge volume of

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:83: are either excavator or backhoe, and they propose to dispose of all dredged material

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:83: Management of Dredged Material, samples should be taken to provide a good

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:83: representation of the volume of material to be dredged. The distribution and depth of

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:83: sampling should reflect the size and depth of the area to be dredged, the amount to

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:83: be dredged and the expected variability in the horizontal and vertical distribution of

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:83: 2.2. In consideration of the volume details of the proposed dredge, the MMO advises that

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:83: should dredge areas A and B be deemed physically homogeneous (i.e. of a similar

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:83: stations be established within the footprint of the proposed dredge area to provide

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:83: adequate spatial coverage. If dredge areas A and B are indeed not homogeneous,

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:83: then two sample stations should be established in dredge area A and one sample

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:83: station in dredge area B. This is in line with the minimum guidelines set by OSPAR,

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:84: dredged and samples must be representative of the material to be dredged (see

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:86: 5.2. Where long term licences for maintenance dredging will be applied for, additional

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:87:Stations should be representative of the dredge area

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:88:need to consider alternative to sea disposal for dredging arisings from this area. The impacts of

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:88:dredging this area will also need to be considered and it is likely that conditions relating to the

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:88:method of dredging would be imposed, generally it would need to be a closed bucket removal

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:88:With regards to the PBDE sampling if sea disposal is not viable for the dredge area then it way not

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:91:Project Title: Tees Dock RoRo2 pontoon refurbishment - Capital Dredge

MLA_2021_00215-PB5051-RHD-106-ZZ-RP-Z-0021 Tees Dock Ro-Ro 2 Environmental Report_Final-1.pdf:91:Project Description: Dredging, Removal

MLA_2021_00215-TG Notice 20.8-2.pdf:1:along with new sheet piles to replace the adjacent quay walls as well as a capital dredge of

MLA_2021_00215-PB5051-RHD-ZZ-NT-Z-3500-Tees Dock Ro Ro 2 - Combi Wall Update-18.pdf:3:Water and sediment quality – No change to the dredging methodology is proposed, therefore no change

MLA_2021_00215-PB5051-RHD-ZZ-NT-Z-3500-Tees Dock Ro Ro 2 - Combi Wall Update-18.pdf:4:scheme remain the same, e.g., dredging, bankseat, anchored sheet piled wall.

MLA_2021_00215-PB5051-RHD-ZZ-NT-Z-3500-Tees Dock Ro Ro 2 - Combi Wall Update-18.pdf:5: -6.0mCD DREDGE

MLA_2021_00215-PB5051-RHD-ZZ-NT-Z-3500-Tees Dock Ro Ro 2 - Combi Wall Update-18.pdf:5: DREDGE DEPTH -9.5mCD

MLA_2021_00215-PB5051-RHD-ZZ-NT-Z-3500-Tees Dock Ro Ro 2 - Combi Wall Update-18.pdf:5: (FUTURE DREDGE DEPTH -10.9mCD)

MLA_2021_00215-PB5051-RHD-ZZ-NT-Z-3500-Tees Dock Ro Ro 2 - Combi Wall Update-18.pdf:5: FUTURE DREDGE DEPTH

MLA_2021_00215-PB5051-RHD-ZZ-NT-Z-3500-Tees Dock Ro Ro 2 - Combi Wall Update-18.pdf:5: DREDGE PLAN UPDATED.

MLA_2021_00215-PB5051-RHD-ZZ-NT-Z-3500-Tees Dock Ro Ro 2 - Combi Wall Update-18.pdf:5: BANKSEAT AREA: FINAL DREDGE LEVEL STIFF CLAY (BH-101) REV DATE REVISION DETAILS BY CHK APP

MLA_2021_00215-PB5051-RHD-ZZ-NT-Z-3500-Tees Dock Ro Ro 2 - Combi Wall Update-18.pdf:5: DREDGING:

MLA_2021_00215-PB5051-RHD-ZZ-NT-Z-3500-Tees Dock Ro Ro 2 - Combi Wall Update-18.pdf:5: 15 DREDGE TO NEW PROFILE

MLA_2021_00215-PB5051-RHD-ZZ-NT-Z-3500-Tees Dock Ro Ro 2 - Combi Wall Update-18.pdf:7: DREDGE LEVEL

MLA_2021_00215-PB5051-RHD-ZZ-NT-Z-3500-Tees Dock Ro Ro 2 - Combi Wall Update-18.pdf:7: DREDGE LEVEL EXISTING SHEET PILE WALL

MLA_2021_00215-20230103_L2021003252_R4.1_Discharge_Letter-23.pdf:1:L/2021/00325/2 R4.1 – Dredge Surveys

MLA_2021_00215-20230103_L2021003252_R4.1_Discharge_Letter-23.pdf:1: Pre and post dredge surveys must be submitted, together with an interpretation of

MLA_2021_00215-20230103_L2021003252_R4.1_Discharge_Letter-23.pdf:1: of completion of each dredge campaign.

MLA_2021_00215-20230103_L2021003252_R4.1_Discharge_Letter-23.pdf:1: 1.1. The condition 5.2.1 requires both the pre and post dredge surveys to be submitted

MLA_2021_00215-20230103_L2021003252_R4.1_Discharge_Letter-23.pdf:1: dredging and one after. Please could you provide the survey results prior to

MLA_2021_00215-20230103_L2021003252_R4.1_Discharge_Letter-23.pdf:1: dredging and the survey results post dredging, labelled as such and with dates.

MLA_2021_00215-20230103_L2021003252_R4.1_Discharge_Letter-23.pdf:1: the difference between the pre and post dredge survey results. Please could you

MLA_2021_00215-20230103_L2021003252_R4.1_Discharge_Letter-23.pdf:1: results prior to dredging and those after dredging.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:3:2.5 Capital Dredging 14

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:5:Figure 4 Overview of the anticipated works, including dredging areas, required for the

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:7:The revised pontoon linkspan arrangement will also require additional capital dredging (and disposal of

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:7:dredged materials), a new suspended deck structure and new sheet pile walls.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:10:to be built, along with new sheet piles to replace the adjacent quay walls as well as a capital dredge of the

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:10: 5. Capital dredging of berth pocket to design dredge level;

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:12: 5. DREDGE

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:13: • Clamshell or similar environmental dredge bucket; and,

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:13: • Back-hoe dredger/long-reach excavator.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:13:of the maintenance dredging activity currently within Tees Dock will need to be extended to include the

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:14:Dredging to the required depth will then be undertaken using marine-based plant such as a backhoe dredger

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:14:(see Section 3.5 dredging below).

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:15:2.5 Capital Dredging

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:15:In order to enable access to the new pontoon linkspan and foyboat pontoon, capital dredging will need to

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:15:to be removed across two dredge areas (A and B) including the side slopes and an overdredge tolerance

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:15:of approximately 13,600m3 of material will be required to achieve a target dredge depth of between -2.7m

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:15:CD to the east of the new pontoon and -10.9m CD to the north of the pontoon. With a 0.5m overdredge

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:15:tolerance the maximum dredge depth would be up to -11.4m CD to the north of the pontoon and -3.2m CD

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:15:the removal of 1,700m3 will be required to achieve a target dredge depth of -2.7m CD (-3.2m CD with

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:15:overdredge tolerance) to allow the local foyboats access to the new berth. The maximum footprint over

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:15:which dredging may occur, as described above, is approximately 6,000m2.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:15:The material to be removed through capital dredging is currently anticipated to be comprised of a superficial

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:15:within the dredge footprint which indicates that the superficial sediments are not suitable for disposal

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:15:impacts to water quality). Therefore, an environmentally sensitive method of dredging, such as clamshell

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:15:or another dredging technique with a closed bucket, will be used to minimise any potential sediment plume.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:15:This material will be disposed at a suitably licenced site on land. Dredging of this sediment is anticipated to

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:15:mudstone will be dredged using a back-hoe dredger either from land or a stable platform within the dock

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:16:(TY150). This site is licenced to accept capital dredged material and has recently accepted capital dredged

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:17: DREDGING

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:17: DREDGING

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:18:2.9.1 Maintenance dredging

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:18:There is an existing requirement for maintenance dredging of the approach channel and various berthing

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:18:pockets in the lower Tees estuary, including within Tees Dock. The existing maintenance dredging regime

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:18:is well established, and the locations, volumes and frequency of dredging are well recorded. Tees Dock is

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:18:west quay of Tees Dock (Figure 5). These various aspects of the existing maintenance dredging are

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:18:discussed in detail in the PDT Maintenance Dredging Annual Review (Royal HaskoningDHV, 2019).

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:18:As a result of the proposed scheme, the maintenance dredging strategy will be adjusted to incorporate the

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:18:maintenance dredging within Tees Dock are expected. It is anticipated that the material will be comprised

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:18:existing maintenance disposal site Tees Bay A (TY160). Future maintenance dredging requirements at the

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:18:berth would be undertaken using standard PDT maintenance dredging plant and procedures.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:22:The proposed scheme has potential to generate waste, primarily as a result of the capital dredging required

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:22:during the construction phase as well as any maintenance dredging that is required during the operational

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:22:phase. The capital dredge will involve the removal of unconsolidated sediments which are not suitable for

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:22:in line with the waste hierarchy. The remaining dredged material is suitable for disposal offshore.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:23:requirements to inform the dredge and disposal strategy for the proposed scheme. A sample plan was

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:23: • One sample station should be taken from dredging zone A and sub-sampled at the surface, mid-

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:24: • One sample station should be taken from dredging zone B and sub-sampled at the surface, mid-

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:25:The proposed scheme will involve a capital dredge and the installation of a new pontoon linkspan with a

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:25:Tees Dock. The central channel within Tees Dock is currently maintenance dredged to -10.9m CD, with the

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:26:proposed to be dredged to and maintained at -10.9m CD, which aligns with water depths in the adjacent

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:26:Berth 5. Additional dredging to -2.7m CD is proposed to the north of the pontoon to allow access to the new

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:26:The newly dredged berths will require maintenance dredging and will be included within the current

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:26:maintenance dredge footprint within Tees Dock. Maintenance dredge requirements within Tees Dock are

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:26:monitored regularly and dredged as required. The dredging requirement for the new pontoon linkspan and

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:26:(and volume of) maintenance dredging undertaken within Tees Dock. Therefore, deepening the small area

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:26:4.2.2 Dredging activities

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:26:In order to inform potential impacts to water quality during the dredging activities, sediment sampling and

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:26:analysis within the dredge footprint has been undertaken. Three sample stations were sampled within

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:26:dredge zone A and one sample station was sampled in dredge zone B (Figure 7) using a gravity corer. The

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:26:has been undertaken with regard to Cefas’ Guideline Action Levels (ALs) for the disposal of dredged

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:26:The Cefas ALs are used as part of a ‘weight of evidence’ approach to assessing the suitability of dredged

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:28:The PSA results for the sediment samples indicate that the sediment within the dredge zones is mixed silt

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:4.2.3 Deterioration in water quality due to dredging activities

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:The heavy metal and PAH analysis results indicate that the unconsolidated sediment within the dredge

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:unconsolidated sediment within the dredge footprint has been estimated using the sediment depth (2m) and

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:the area to be dredged and represents less than 3,000m3, a small proportion of the estimated 15,300m3

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:total capital dredge volume. Depending on port operations, dredging of the unconsolidated soft material will

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:Sediment re-suspension caused by grab-dredging can be reduced in the following ways:

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:In order to minimise potential impacts to water quality during the dredging process it is proposed that the

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:maintenance and inspection of seals and of bucket/grab and barge integrity (both for dredging and unloading

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:operations) through the appointment of a suitably qualified and experienced specialist dredging contractor

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:with appropriate equipment. Losses caused by grab dredging can be reduced by up to 50% by using

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:operational during dredging activities.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:conditions is small in scale with three distinct zones: an initial mixing zone where the dredge mixes materials

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:be dredged using a back-hoe dredger and, depending on port operations will take up to 5 weeks to complete.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:These layers are of geological origin and are therefore inert. Dredging of this material may cause some

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:that would be resuspended by the dredging activities would be small in scale and localised, settling out of

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:33:suspension within 100m of the dredging activity, indicating that any potential impacts to water quality would

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:34:4.2.5 Maintenance dredging

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:34:As a result of the proposed scheme, the maintenance dredging strategy will be adjusted to incorporate the

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:34:volumes/types of materials requiring to be dredged from the Tees Dock berths are anticipated. The

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:34:additional maintenance activities will not be discernible above current maintenance dredging within Tees

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:34:Dock. Material from maintenance dredging would be disposed of at the existing maintenance disposal site

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:34:Tees Bay A (TY160), as currently occurs. Future maintenance dredging requirements at the berth would

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:34:be undertaken using standard PDT maintenance dredging plant and procedures. As such no significant

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:34:operational impacts on water quality are anticipated from future maintenance dredging requirements.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:34:refurbish existing revetment and abutment sheet pile walls and undertake a capital dredge within the new

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:35:The potential footprint within which proposed dredge activities may occur is approximately 6,000m2 including

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:35:side slopes (Figure 4) the majority of which will be outside the current maintenance dredged footprint within

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:35:Tees Dock. Dredging will not be required across the entire footprint due to existing water depths, and will

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:35:therefore be targeted to achieve the necessary depths required. Within dredged areas, the existing benthic

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:35:dredging required to maintain the advertised dredge depth. Where sediment resettles, recruitment of the

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:35:the surrounding Tees Dock and River Tees area, all of which are regularly maintenance dredged and

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:36:Due to the small-scale nature of the dredge and footprint of the pontoon linkspan refurbishment works, and

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:36:As discussed in Section 4.2 the unconsolidated sediment within the dredge areas is not suitable for offshore

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:36:disposal due to the contamination levels present. Therefore, the dredge will be undertaken using an

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:36:environmentally sensitive technique, such as a clamshell dredger or similar, to minimise resuspension of

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:36:sediment during dredging activities. As discussed in Section 4.2.3, the approximate volume of

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:36:contaminated sediment within the dredge footprint is estimated to be 3,000m3, a small proportion of the total

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:36:dredge volume of 15,300m3. With the use of an environmental grab (e.g. clamshell dredge bucket, or

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:36:sediment that would be resuspended by the dredging activities would be small in scale. The literature also

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:36:indicates that the effect would be highly localised, settling out of suspension within 100m of the dredging

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:37:4.4.2.3 Underwater noise during dredging and vessel movements

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:37:low frequencies (Popper et al., 2003; Popper and Fay, 2011), which puts them at risk from dredging noise.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:37:No study has looked at dredging noise specifically, but avoidance of low-frequency vessel noise by some

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:37:Therefore, the addition of the dredging activity and vessel movements over the construction period will not

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:37:4.4.2.4 Maintenance dredging

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:37:As discussed in Section 4.2.5, the newly deepened berth will require maintenance dredging therefore,

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:37:PDT’s maintenance dredging strategy will be adjusted to incorporate the newly deepened Number 2 Ro-Ro

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:37:berth. It is not anticipated that the addition of dredging at the new Number 2 Ro-Ro pontoon will significantly

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:37:increase the dredging requirement within Tees Dock and potential impacts will not be discernible above

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:37:dredging activities.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:39:4.6.2 Underwater noise during dredging and vessel movements

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:39:Noise levels from the vessels and dredging activity would not result in any risk of permanent auditory injury

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:40:As discussed in Section 4.2, unconsolidated sediments within the proposed dredge areas is not considered

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:40:suitable for offshore disposal due to the levels of contaminants present. Therefore, the dredge of this

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:40:The volume of contaminated sediment within the dredge footprint is approximately 3,000m3, a small

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:40:proportion of the total dredge volume of 15,300m3. With the use of the environmental dredging technique,

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:40:would be potentially released and resuspended by the dredging activities would be small in scale and

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:40:localised, settling out of suspension within 100m of the dredging activity (Bohlen, 1978). It is therefore

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:42:Sediment samples taken from within the capital dredge footprint for physico-chemical analysis indicate that

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:42:and dredging and the maintenance of navigational equipment. PDT also have an in-house oil response unit

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:43:undertaken by road. The unconsolidated capital dredge sediment is not suitable for offshore disposal and

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:43:archaeology present within the dredge or pontoon footprint. The soft sediment is underlain by hard Mercia

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:44:Table 8 are within the Tees and involve piling and or dredging activities and may be undertaken at the same

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:44: MLA/2019/00151 Discharging Terminals - D, and a dredge of the riverbed (with

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:44: L/2019/00220/1 conditions Jetty 1 associated disposal of dredged

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:44: Capital dredging of the approach

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:44: pocket (equating to dredging of up to

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:45: Disposal of dredged material

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:45: demolition, capital dredging, offshore

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:45: disposal of dredged material,

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:45: Facilities Associated dredging operations to

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:47:structure. The proposed scheme also requires a capital dredge to deepen the new berth. Once the works

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:48:Bohlen, W. F. (1978). Factors governing the distribution of dredge-resuspended sediments. Proceedings of

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:48:CIRIA (2000) Scoping the assessment of sediment plumes from dredging. CIRIA Publication C547. London,

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:49:F. (2015) A review of impacts on marine dredging activities on marine mammals. ICES Journal of Marine

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:51: capital dredge in front of the new pontoon. It should be noted that the detailed design has

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:52:  Capital dredging of berth pocket to design dredge level;

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:52:and the footprint of the maintenance dredging activity currently within Tees Dock will need

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:54:existing revetment and abutment sheet pile walls and undertake a capital dredge within the

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:58:capital dredge in front of the new pontoon.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:58: • Capital dredging of berth pocket to design dredge level;

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:58:increase and the footprint of the maintenance dredging activity currently within Tees

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:60:The dredging has the potential to lead to contamination of the water column.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:60:consideration for alternative dredging methods and potential disposal on land.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:60:dredging which have the potential to discover unknown heritage assets. However,

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:67: temporary and intermittent impact. Capital dredging is also

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:67: required which will be undertaken using a clamshell dredger, or

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:67: predicted to fall out of suspension within 100m of the dredging

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:69:river walls and bank seat; and the capital dredging within the footprint for the new berth. Operational

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:69:dredging will be required to maintain the navigable depths of the approach and berth at the new pontoon.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:69:Therefore, two construction activities; piling and capital dredging, and one operational activity; maintenance

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:69:dredging, will be carried forward to the assessment.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:72: • Dredging disposal strategy;

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:72: • Reduce impact of dredging;

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:72: • Retime dredging or disposal;

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:72: • Dredge disposal site selection;

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:72:Therefore, the activities; piling and capital dredging, will be scoped to identify the potential risks to each

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:73: o Appropriate spill kits will be available on board the dredging vessel and all crew will be trained

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:74: Capital Dredging Activity Maintenance Dredging

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:74: body that is heavily therefore not involve the introduction of a new structure to the Tees, however, the capital dredge will cause dredging and

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:74: modified for the same limited resuspension of sediment, and once completed the maintenance dredge requirement will slightly maintenance

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:74: use as the activity? increase the dredging requirement within Tees Dock. dredging)

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:74: release chemicals, are No, the activity will not use any No, the activity will not use dredging only)

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:74: disturb sediment with disturbed will not be at levels of dredged from within Tees

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:74: Phytoplankton / Will the activity affect The piling activity within the marine Dredging of the unconsolidated Maintenance dredging of No

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:74: oxygen levels, nutrients installed sequentially. Only nine and will therefore not be continuous. maintenance dredging of

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:74: or microbial patterns piles to be installed in the marine Following this dredging of the boulder Tees Dock as a whole.

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:75: Capital Dredging Activity Maintenance Dredging

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:75: direct footprint of the dredge represents 0.09% of this lower

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:76: Capital Dredging Activity Maintenance Dredging

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:76: estuary and could affect component of the capital dredge

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:76: fish entering it or could Any underwater noise created during dredge bucket, or similar) will be

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:76: Maintenance dredging of

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:76: Could the activity impact maintenance dredging of

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:76: day) and temporary (piling will take resuspended by the dredging

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:76: Tees Dock 1km from the main Tees 100m of the dredging activity,

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:77: Capital Dredging Activity Maintenance Dredging

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78:The output of Stage 2 Scoping has determined that the following parameters for the capital dredging activity

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78:The following parameters for the maintenance dredging activity have also been identified for Further

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78:Capital Dredge

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78:The capital dredge activity associated with the proposed scheme will increase the dredging requirement

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78:within the Tees and once completed the new berth will require maintenance dredging to maintain the

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78: • Dredging disposal strategy;

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78: • Reduce impact of dredging;

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78: • Retime dredging or disposal;

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78: • Dredge disposal site selection;

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78:The proposed scheme would cause the resuspension of sediment through the capital dredging activity

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78:of the main capital dredge of 15,300m3. Dredging of this soft sediment will be completed in one to three

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78:to the contamination present in this sediment it is proposed that a clamshell or similar dredge is used to

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78:The underlying clay and Mercia mudstone will be dredged using a back-hoe dredger. This material is of

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78:geological origin and is therefore inert and suitable for offshore disposal. The dredging of this material is

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78:not anticipated to give rise to significant SSCs due to its consolidated nature. Therefore, the capital dredging

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78:Maintenance dredge

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:78:Maintenance dredging of the Ro-Ro 2 pontoon will be added to the maintenance dredge protocol for

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:79:2 pontoon berth will add approximately 6,000m2 area to the dredging activities. The approximate area of

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:79:Tees Dock is 185,000m2 therefore the additional dredge represents 3% of Tees Dock. This is not considered

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:79:to be significant and the activity will not be discernible above current levels of maintenance dredging within

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:79:Tees Dock. Therefore, the maintenance dredging activity is in line with the mitigation measures for the Tees

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:79:As discussed in Section 4.2, sediment samples taken from within the dredge footprints were found to

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:79:This contamination is present in the soft unconsolidated component of the dredged material which is

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:79:facility. The remainder of the dredged material (12,300m 3) is comprised of boulder clay and Mercia

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:79:In order to minimise the volume of the unconsolidated material that is suspended during the dredging

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:79:activities a clamshell dredger, or similar, will be used to dredge the material. This dredging method has

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:79:been designed to minimise the resuspension of sediment during the dredging activity, specifically when the

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:79:material is raised from the seabed through the water column. Losses caused by grab dredging can be

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:79:small in scale with three distinct zones: an initial mixing zone where the dredge mixes materials throughout

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:79:that would be resuspended by the dredging activities would be small in scale and highly localised, settling

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:79:out of suspension within 100m of the dredging activity, indicating that any potential impacts to water quality

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:79:the capital dredging activity would not result in a significant non-temporary effect on the water quality of the

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:82:REFURBISHMENT – CAPITAL DREDGE

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:82:sample plan to inform future dredge application. Please see our response below and

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:83: the capital dredge and disposal of material from the Tees Dock RoRo2 pontoon

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:83: 1.2. To facilitate the ponton refurbishment, a capital dredge is required to deepen the

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:83: 11.2m bCD respectively. This will result in a total likely dredge volume of

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:83: are either excavator or backhoe, and they propose to dispose of all dredged material

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:83: Management of Dredged Material, samples should be taken to provide a good

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:83: representation of the volume of material to be dredged. The distribution and depth of

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:83: sampling should reflect the size and depth of the area to be dredged, the amount to

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:83: be dredged and the expected variability in the horizontal and vertical distribution of

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:83: 2.2. In consideration of the volume details of the proposed dredge, the MMO advises that

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:83: should dredge areas A and B be deemed physically homogeneous (i.e. of a similar

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:83: stations be established within the footprint of the proposed dredge area to provide

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:83: adequate spatial coverage. If dredge areas A and B are indeed not homogeneous,

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:83: then two sample stations should be established in dredge area A and one sample

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:83: station in dredge area B. This is in line with the minimum guidelines set by OSPAR,

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:84: dredged and samples must be representative of the material to be dredged (see

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:86: 5.2. Where long term licences for maintenance dredging will be applied for, additional

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:87:Stations should be representative of the dredge area

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:88:need to consider alternative to sea disposal for dredging arisings from this area. The impacts of

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:88:dredging this area will also need to be considered and it is likely that conditions relating to the

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:88:method of dredging would be imposed, generally it would need to be a closed bucket removal

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:88:With regards to the PBDE sampling if sea disposal is not viable for the dredge area then it way not

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:91:Project Title: Tees Dock RoRo2 pontoon refurbishment - Capital Dredge

MLA_2021_00215-Tees Dock Ro-Ro 2 Environmental Report-13.pdf:91:Project Description: Dredging, Removal

MLA_2015_00334-APPLICATION-FORM.pdf:2:There is an immediate need (Q1/2017) to dredge the approach channel and holding to -

MLA_2015_00334-APPLICATION-FORM.pdf:2:further dredging campaigns will be undertaken in response to commercial demand.

MLA_2015_00334-APPLICATION-FORM.pdf:2:Volumes of material to be dredged and disposed of are given in the attached

MLA_2015_00334-APPLICATION-FORM.pdf:2:Dredging to be undertaken on a 24/7 basis to maximise use of plant.

MLA_2015_00334-APPLICATION-FORM.pdf:7:process for dredging?

MLA_2015_00334-APPLICATION-FORM.pdf:7:The accelerated licensing process applies to certain types of small-scale low-risk dredging activity.

MLA_2015_00334-APPLICATION-FORM.pdf:8: Dredging at RiverA. Create one site for RiverA and add dredging as an activity.

MLA_2015_00334-APPLICATION-FORM.pdf:8: Dredging and quay wall improvements at RiverA. Create 2 locations: one for the

MLA_2015_00334-APPLICATION-FORM.pdf:8: dredging in front of the new quay area and one for the quay wall improvements.

MLA_2015_00334-APPLICATION-FORM.pdf:8: Dredging at RiverA and removal of large concrete block within the dredge area.

MLA_2015_00334-APPLICATION-FORM.pdf:8: dredging.

MLA_2015_00334-APPLICATION-FORM.pdf:8:Disposal of Silts and TEES BAY A Disposal of dredged

MLA_2015_00334-APPLICATION-FORM.pdf:9:Disposal of Clay to TEES BAY C Disposal of dredged

MLA_2015_00334-APPLICATION-FORM.pdf:9:Deepening of Seaton Able Seaton Port Navigational dredging

MLA_2015_00334-APPLICATION-FORM.pdf:9:Maintenance Able Seaton Port Navigational dredging

MLA_2015_00334-APPLICATION-FORM.pdf:9:dredging of Seaton Hold… (maintenance)

MLA_2015_00334-APPLICATION-FORM.pdf:10:Lowering of the TERRC Basin, Quays Navigational dredging

MLA_2015_00334-APPLICATION-FORM.pdf:10:Disposal of dredged material

MLA_2015_00334-APPLICATION-FORM.pdf:11:Disposal of silt and soft material from Capital and maintenance dredging

MLA_2015_00334-APPLICATION-FORM.pdf:11:Trailer suction hopper dredgers to remove silt and soft deposits and dump in the Tees

MLA_2015_00334-APPLICATION-FORM.pdf:11:Disposal of dredged material

MLA_2015_00334-APPLICATION-FORM.pdf:12:Dredge details

MLA_2015_00334-APPLICATION-FORM.pdf:12:You should provide details of the dredge. This should include the methodology and location. If this has already been

MLA_2015_00334-APPLICATION-FORM.pdf:12:Has the dredged material been analysed?

MLA_2015_00334-APPLICATION-FORM.pdf:13:The disposal of dredged material to sea should be considered a last resort. You should provide details of alternatives

MLA_2015_00334-APPLICATION-FORM.pdf:13:Disposal of dredged material

MLA_2015_00334-APPLICATION-FORM.pdf:13:Disposal of clays from capital dredging.

MLA_2015_00334-APPLICATION-FORM.pdf:14:Disposal of dredged material

MLA_2015_00334-APPLICATION-FORM.pdf:15:Dredge details

MLA_2015_00334-APPLICATION-FORM.pdf:15:You should provide details of the dredge. This should include the methodology and location. If this has already been

MLA_2015_00334-APPLICATION-FORM.pdf:16:Has the dredged material been analysed?

MLA_2015_00334-APPLICATION-FORM.pdf:16:The disposal of dredged material to sea should be considered a last resort. You should provide details of alternatives

MLA_2015_00334-APPLICATION-FORM.pdf:16:Dredging

MLA_2015_00334-APPLICATION-FORM.pdf:16:Navigational dredging (capital)

MLA_2015_00334-APPLICATION-FORM.pdf:17:Capital dredging will be undertaken in the locations and to the depths shown on

MLA_2015_00334-APPLICATION-FORM.pdf:17:Back Hoe dredger to remove clay into split hopper barges to be disposed at sea. Final

MLA_2015_00334-APPLICATION-FORM.pdf:17:levelling to be undertaken by bed levelling vessels. There will be an overdredge

MLA_2015_00334-APPLICATION-FORM.pdf:17:When clients require dredging for their vessels/ Rigs etc.

MLA_2015_00334-APPLICATION-FORM.pdf:18:Navigational dredging (capital)

MLA_2015_00334-APPLICATION-FORM.pdf:18: dredging

MLA_2015_00334-APPLICATION-FORM.pdf:18: Specific 2.2 Dredge 9.5

MLA_2015_00334-APPLICATION-FORM.pdf:18: below be dredged

MLA_2015_00334-APPLICATION-FORM.pdf:18: dredging Hopper

MLA_2015_00334-APPLICATION-FORM.pdf:18: Specific 1.3 Dredge 9.5

MLA_2015_00334-APPLICATION-FORM.pdf:18: below be dredged

MLA_2015_00334-APPLICATION-FORM.pdf:18:dredged per campaign

MLA_2015_00334-APPLICATION-FORM.pdf:19:Able Seaton Port Holding basin and Channel - Maintenance dredging of Seaton Channel,

MLA_2015_00334-APPLICATION-FORM.pdf:19:Dredging

MLA_2015_00334-APPLICATION-FORM.pdf:19:Navigational dredging (maintenance)

MLA_2015_00334-APPLICATION-FORM.pdf:19:Maintenance dredging of Seaton Channel, Holding Basin and Quays 10 and 11

MLA_2015_00334-APPLICATION-FORM.pdf:19:Annual Maintenance Dredging

MLA_2015_00334-APPLICATION-FORM.pdf:20:Trailer suction hopper dredger followed by Plough dredger to level sea bed.

MLA_2015_00334-APPLICATION-FORM.pdf:20:Silt that is at the edge of the quay walls which the trailer suction hopper dredger cannot

MLA_2015_00334-APPLICATION-FORM.pdf:20:An allowance of a +0.3m Overdredge.

MLA_2015_00334-APPLICATION-FORM.pdf:20:Navigational dredging (maintenance)

MLA_2015_00334-APPLICATION-FORM.pdf:21: Please provide background information on dredging activities that have taken place

MLA_2015_00334-APPLICATION-FORM.pdf:21:Number of years dredging that has been carried out

MLA_2015_00334-APPLICATION-FORM.pdf:21:Average number of dredging campaigns that have

MLA_2015_00334-APPLICATION-FORM.pdf:21:Average volume of material that has been dredged

MLA_2015_00334-APPLICATION-FORM.pdf:21:Average volume of material that has been dredged

MLA_2015_00334-APPLICATION-FORM.pdf:21:Number of years that dredging has been carried out

MLA_2015_00334-APPLICATION-FORM.pdf:21: dredging Hopper

MLA_2015_00334-APPLICATION-FORM.pdf:21: Specific 1.3 Dredge 9.5

MLA_2015_00334-APPLICATION-FORM.pdf:21: below be dredged

MLA_2015_00334-APPLICATION-FORM.pdf:21: dredged

MLA_2015_00334-APPLICATION-FORM.pdf:22: dredging Plough

MLA_2015_00334-APPLICATION-FORM.pdf:22: Specific 1.3 Dredge 9.5

MLA_2015_00334-APPLICATION-FORM.pdf:22: below be dredged

MLA_2015_00334-APPLICATION-FORM.pdf:22: dredged

MLA_2015_00334-APPLICATION-FORM.pdf:22: dredging Hopper

MLA_2015_00334-APPLICATION-FORM.pdf:22: Specific 1.3 Dredge 9.5

MLA_2015_00334-APPLICATION-FORM.pdf:22: below be dredged

MLA_2015_00334-APPLICATION-FORM.pdf:22: dredged

MLA_2015_00334-APPLICATION-FORM.pdf:22: dredging Hopper

MLA_2015_00334-APPLICATION-FORM.pdf:22: Specific 1.3 Dredge 9.5

MLA_2015_00334-APPLICATION-FORM.pdf:23: below be dredged

MLA_2015_00334-APPLICATION-FORM.pdf:23: dredged

MLA_2015_00334-APPLICATION-FORM.pdf:23:dredged per campaign

MLA_2015_00334-APPLICATION-FORM.pdf:23:See in capital dredge uploads Cefas Results

MLA_2015_00334-APPLICATION-FORM.pdf:23:Tees Bay “A” for material that is removed by trailer suction hopper. Plough dredge will

MLA_2015_00334-APPLICATION-FORM.pdf:23:Is a maintenance dredge protocol in place for this area?

MLA_2015_00334-APPLICATION-FORM.pdf:23:Have you obtained written agreement from Natural England that the dredging

MLA_2015_00334-APPLICATION-FORM.pdf:23:The accelerated licensing process applies to certain types of small-scale low-risk dredging activity.

MLA_2015_00334-APPLICATION-FORM.pdf:24:Due to the dredging activities in the area, it is considered that in order to protect the

MLA_2015_00334-APPLICATION-FORM.pdf:24:dredging activities.

MLA_2015_00334-APPLICATION-FORM.pdf:24:Material is removed from this area by the dredging activities listed in this application.

MLA_2015_00334-APPLICATION-FORM.pdf:26:Dredging

MLA_2015_00334-APPLICATION-FORM.pdf:26:Navigational dredging (capital)

MLA_2015_00334-APPLICATION-FORM.pdf:26:A combination of backhoe dredger and crane mounted grab.

MLA_2015_00334-APPLICATION-FORM.pdf:27:Navigational dredging (capital)

MLA_2015_00334-APPLICATION-FORM.pdf:27: dredging

MLA_2015_00334-APPLICATION-FORM.pdf:27: Specific 2.2 Dredge -8.5

MLA_2015_00334-APPLICATION-FORM.pdf:27: below be dredged

MLA_2015_00334-APPLICATION-FORM.pdf:28: dredging

MLA_2015_00334-APPLICATION-FORM.pdf:28: Specific 2.2 Dredge -8.5

MLA_2015_00334-APPLICATION-FORM.pdf:28: below be dredged

MLA_2015_00334-APPLICATION-FORM.pdf:28:dredged per campaign

502 - Waste FD MASTER.pdf:1:Seaton Port Dredge, Able UK

502 - Waste FD MASTER.pdf:2:PROJECT TITLE: Seaton Port Dredge

502 - Waste FD MASTER.pdf:4: behalf of Able UK to accompany a Marine Licence application for a capital dredge for

502 - Waste FD MASTER.pdf:4: three years and maintenance dredging of ten years. The proposed development site

502 - Waste FD MASTER.pdf:4: the existing and proposed dredging area and depth respectively.

502 - Waste FD MASTER.pdf:5:2.2 Able UK requires this dredging berth for operational purposes. To prevent the

502 - Waste FD MASTER.pdf:5: dredging from being undertaken would cause the channel to silt-up and would stop

502 - Waste FD MASTER.pdf:5:2.4 To re-use the material dredged would not be cost effective. In addition, we are not

502 - Waste FD MASTER.pdf:6: material dredged.

502 - Waste FD MASTER.pdf:6:2.6 In relation to other means of recovery of the material dredged, the only option

502 - Waste FD MASTER.pdf:7: are no feasible alternatives to situating the material dredged from the proposed

502 - Waste FD MASTER.pdf:7:3.2 It is important note, dredging currently takes place in the proposed area and the

502 - Waste FD MASTER.pdf:8:4.2 This assessment has shown that the only feasible action is for the dredged material

501 - Water FD MASTER.pdf:1:Seaton Port Dredge, Able UK

501 - Water FD MASTER.pdf:2:PROJECT TITLE: Seaton Port Dredge

501 - Water FD MASTER.pdf:4: dredging for three years and maintenance dredging for ten years. The proposed

501 - Water FD MASTER.pdf:4: 001-00007-A show the existing and proposed dredging area and depth respectively.

501 - Water FD MASTER.pdf:6:3.2 The site has undertaken maintenance dredging until their previous Marine Licence

501 - Water FD MASTER.pdf:6: activities similar to this proposal such as a capital dredge, and ongoing maintenance

501 - Water FD MASTER.pdf:6: dredging of the river channel.

501 - Water FD MASTER.pdf:7: sediments and an increase in water turbidity. This is associated with the dredging

501 - Water FD MASTER.pdf:7: dredging licence (and pocket) any impacts will not alter the natural baseline.

Appendix 16.1a - DNV Report Rev1 2004.pdf:1: ENVIRONMENTAL ASSESSMENT OF DREDGING

Appendix 16.1a - DNV Report Rev1 2004.pdf:2:and sediment transport due to dredging required in the development of the TERRC facility in the Tees Estuary.

Appendix 16.1a - DNV Report Rev1 2004.pdf:2:deepening of the proposed dredging areas. Outside the bounds of Seaton Channel changes in velocities and

Appendix 16.1a - DNV Report Rev1 2004.pdf:2:extensive dredging scenario the results indicate a decrease in average velocities of about 7 % on Seal Sands

Appendix 16.1a - DNV Report Rev1 2004.pdf:2:from the suggested dredging operations will be much larger compared to tidal driven transport and

Appendix 16.1a - DNV Report Rev1 2004.pdf:2:for the backhoe dredge, but are less for the hopper dredge. In all cases, the concentrations drop off quickly

Appendix 16.1a - DNV Report Rev1 2004.pdf:2:away from the dredge. Some of the released sediments for both the backhoe and the hopper dredge are

Appendix 16.1a - DNV Report Rev1 2004.pdf:2:transported into the shallow areas south of the Seaton Channel. The greatest impact are related to dredging

Appendix 16.1a - DNV Report Rev1 2004.pdf:2:Seaton Channel with a hopper dredge on spring tide which yields a deposition rate around 100 g/m2 after only

Appendix 16.1a - DNV Report Rev1 2004.pdf:2:2 days of dredging. Dredging around the clock for 12 weeks, as planned, can therefore introduce considerably

Appendix 16.1a - DNV Report Rev1 2004.pdf:2:result of the planned dredging operations at the TERRC facility. The level of contamination in the dredging

Appendix 16.1a - DNV Report Rev1 2004.pdf:2:have been mapped for several metals (Ar, Cd, Cr, Cu, Hg, Ni, Pb and Zn), PCBs, PAHs and TBT in dredging

Appendix 16.1a - DNV Report Rev1 2004.pdf:2:Environmental assessment of dredging Hydrological modelling

Appendix 16.1a - DNV Report Rev1 2004.pdf:3:3 DREDGING SCENARIOS AND VOLUMES ………………………………………………….3

Appendix 16.1a - DNV Report Rev1 2004.pdf:3:3.1 Initial dredging 3

Appendix 16.1a - DNV Report Rev1 2004.pdf:3:3.2 Maintenance dredging 8

Appendix 16.1a - DNV Report Rev1 2004.pdf:3:4.1.4 Sediment transport due to dredging 21

Appendix 16.1a - DNV Report Rev1 2004.pdf:4:7 MODELLING OF DREDGING OPERATIONS - SSFATE………………………………53

Appendix 16.1a - DNV Report Rev1 2004.pdf:4:7.1 Backhoe Dredge Results 53

Appendix 16.1a - DNV Report Rev1 2004.pdf:4:7.2 Hopper Dredge Results 61

Appendix 16.1a - DNV Report Rev1 2004.pdf:4:7.3 Backhoe and hopper dredges operating simultaneously 63

Appendix 16.1a - DNV Report Rev1 2004.pdf:4:10.2 Dredging 75

Appendix 16.1a - DNV Report Rev1 2004.pdf:4:10.3.2 Impact of dredging operations 76

Appendix 16.1a - DNV Report Rev1 2004.pdf:5:hydrodynamics and sediment transport due to dredging required in the development of the

Appendix 16.1a - DNV Report Rev1 2004.pdf:5:Channel due to deepening of the proposed dredging areas. Outside the bounds of Seaton Channel

Appendix 16.1a - DNV Report Rev1 2004.pdf:5:of Seaton Channel. For the most extensive dredging scenario the results indicate a decrease in

Appendix 16.1a - DNV Report Rev1 2004.pdf:5:dredging operations will be much larger compared to tidal driven transport and sedimentation.

Appendix 16.1a - DNV Report Rev1 2004.pdf:5:the backhoe dredge, but are less for the hopper dredge. In all cases, the concentrations drop off

Appendix 16.1a - DNV Report Rev1 2004.pdf:5:quickly away from the dredge. Some of the released sediments for both the backhoe and the

Appendix 16.1a - DNV Report Rev1 2004.pdf:5:hopper dredge are transported into the shallow areas south of the Seaton Channel. The greatest

Appendix 16.1a - DNV Report Rev1 2004.pdf:5:impact are related to dredging Seaton Channel with a hopper dredge on spring tide which yields

Appendix 16.1a - DNV Report Rev1 2004.pdf:5:a deposition rate around 100 g/m2 after only 2 days of dredging. Dredging around the clock for

Appendix 16.1a - DNV Report Rev1 2004.pdf:6:assess the impact on hydrodynamics and sediment transport due to dredging required in the

Appendix 16.1a - DNV Report Rev1 2004.pdf:6:bathymetry of the Seaton Channel and associated dredged areas. The second relates to water

Appendix 16.1a - DNV Report Rev1 2004.pdf:6:column suspended sediment concentrations due to the dredging activity, which is done in co

Appendix 16.1a - DNV Report Rev1 2004.pdf:6:see the impacts clearly, masking elements like floods, storms, waves, dredging activities and

Appendix 16.1a - DNV Report Rev1 2004.pdf:6:floods, wave action and propeller currents. Dredging operations are investigated to some degree

Appendix 16.1a - DNV Report Rev1 2004.pdf:6:to find the impact of dredging the TERRC dry dock and Seaton Channel, but the continuous

Appendix 16.1a - DNV Report Rev1 2004.pdf:6:dredging operation along the River Tees and the estuary is not included.

Appendix 16.1a - DNV Report Rev1 2004.pdf:6:that siltation rates and subsequent needs for maintenance dredging should not be based upon the

Appendix 16.1a - DNV Report Rev1 2004.pdf:7:3 DREDGING SCENARIOS AND VOLUMES

Appendix 16.1a - DNV Report Rev1 2004.pdf:7:Based on the bathymetry quantities for different dredging scenarios have been calculated.

Appendix 16.1a - DNV Report Rev1 2004.pdf:7:3.1 Initial dredging

Appendix 16.1a - DNV Report Rev1 2004.pdf:7:Figure 3-1 Overview of the dredging areas. 1) dry/wet dock, 2) Bund/cofferdam area, 3)

Appendix 16.1a - DNV Report Rev1 2004.pdf:7:Detailed figures showing the bathymetry in each dredging area are presented below. The

Appendix 16.1a - DNV Report Rev1 2004.pdf:7:bathymetric charts are drawn up such that the areas which need to be dredged are made as visible

Appendix 16.1a - DNV Report Rev1 2004.pdf:8:Figure 3-2 Detailed bathymetry for dredging of Seaton Channel

Appendix 16.1a - DNV Report Rev1 2004.pdf:8:Figure 3-3 Detailed bathymetry for dredging of Holding Basin

Appendix 16.1a - DNV Report Rev1 2004.pdf:9:Figure 3-4 Detailed bathymetry for dredging of Quay 10 and 11

Appendix 16.1a - DNV Report Rev1 2004.pdf:9:Figure 3-5 Detailed bathymetry for dredging of Bund/cofferdam area

Appendix 16.1a - DNV Report Rev1 2004.pdf:10:Figure 3-6 Detailed bathymetry for dredging of Dry/wet dock

Appendix 16.1a - DNV Report Rev1 2004.pdf:10:3-1. Based on the surface area of these two areas an assumption is made on the dredging

Appendix 16.1a - DNV Report Rev1 2004.pdf:10:Calculated dredging volumes for different scenarios are presented in Table 3-1. In addition

Appendix 16.1a - DNV Report Rev1 2004.pdf:10:dredging volumes for a proposed extension of quay 10 & 11 are calculated and presented in the

Appendix 16.1a - DNV Report Rev1 2004.pdf:10:table. The areas of dredging related to the proposed extension are shown in Figure 3-7 below.

Appendix 16.1a - DNV Report Rev1 2004.pdf:10:Figure 3-7 Areas of dredging for the proposed extension of Quay 10 and 11

Appendix 16.1a - DNV Report Rev1 2004.pdf:11:Table 3-1 Calculated volumes of dredged sediments.

Appendix 16.1a - DNV Report Rev1 2004.pdf:11:Scenario Reference area 2D area m Dredging depth Volume m3

Appendix 16.1a - DNV Report Rev1 2004.pdf:12:3.2 Maintenance dredging

Appendix 16.1a - DNV Report Rev1 2004.pdf:12:dredging will have a great impact on the sediment transport and distribution. It is unrealistic to

Appendix 16.1a - DNV Report Rev1 2004.pdf:12:We have therefore based this estimate of probable dredging quantities during operation on

Appendix 16.1a - DNV Report Rev1 2004.pdf:12:historical dredging quantities, and used the model results to indicate areas of higher and lower

Appendix 16.1a - DNV Report Rev1 2004.pdf:12:Figure 3-8 “Chart 9” in Tees Estuary dredging plan /2/

Appendix 16.1a - DNV Report Rev1 2004.pdf:13:The average annual dredging volume for “Chart 9” from 1991 to 2001 is found to be 106,000 m3

Appendix 16.1a - DNV Report Rev1 2004.pdf:13:Table 3-3 Estimated annual maintenance dredging quantities from “chart 9” /2/

Appendix 16.1a - DNV Report Rev1 2004.pdf:13:Based on chart 9 /2/ and when the dry dock is closed, an annual dredging volume of 23,000 m3 is

Appendix 16.1a - DNV Report Rev1 2004.pdf:13:on calculated dredging areas in this project and will differ somewhat from the numbers in Table

Appendix 16.1a - DNV Report Rev1 2004.pdf:13:Table 3-4 Estimated annual maintenance dredging for different scenarios, based on

Appendix 16.1a - DNV Report Rev1 2004.pdf:13:calculated areas of the dredging areas in this project

Appendix 16.1a - DNV Report Rev1 2004.pdf:14:Based on this maintenance dredging of all the areas in Figure 3-1 (Dock, bund/cofferdam,

Appendix 16.1a - DNV Report Rev1 2004.pdf:14:Holding basin, Quays 10 and 11 50 m off and Seaton Channel), an annual dredging volume of

Appendix 16.1a - DNV Report Rev1 2004.pdf:14:marked A, B and C in Figure 3-7, and total annual dredging volume then yields 43,191 m3.

Appendix 16.1a - DNV Report Rev1 2004.pdf:15:response to a need for tools to assist dredging project managers confronted by requests for

Appendix 16.1a - DNV Report Rev1 2004.pdf:16:transport, dispersion, and settling of suspended dredged material released to the water column as

Appendix 16.1a - DNV Report Rev1 2004.pdf:16:a result of dredging operations. An integral component of the modelling system is the

Appendix 16.1a - DNV Report Rev1 2004.pdf:17:Updated bathymetric data showing levels in the dredged parts of the Tees River, the Tees estuary

Appendix 16.1a - DNV Report Rev1 2004.pdf:25:4.1.4 Sediment transport due to dredging

Appendix 16.1a - DNV Report Rev1 2004.pdf:25:To determine suspended sediment plumes resulting from the dredging activities, a numerical

Appendix 16.1a - DNV Report Rev1 2004.pdf:25:dredge and the hopper dredge. Results are generated with each working alone, with the results

Appendix 16.1a - DNV Report Rev1 2004.pdf:25:then combined to show the impact of the two dredges working simultaneously. Plans call for the

Appendix 16.1a - DNV Report Rev1 2004.pdf:25:backhoe dredge to work for eight weeks around the clock, with the hopper dredge working for

Appendix 16.1a - DNV Report Rev1 2004.pdf:25:equilibrium suspended plume is established by the end of two days of dredging. Simulations

Appendix 16.1a - DNV Report Rev1 2004.pdf:25:have been made for dredging during both neap and spring tides.

Appendix 16.1a - DNV Report Rev1 2004.pdf:26:Figure 4-7 Geographical boundary of dredging model

Appendix 16.1a - DNV Report Rev1 2004.pdf:26:sediment released by the dredging activity is simulated using particles, which are transported on

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:generated by the operation of the dredges. A backhoe dredge will be used in the areas labeled 1,

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:2, and 3 in Figure 3-1, whereas, a hopper dredge will be used in the Seaton Channel labelled 5

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:and the holding basin labelled 4. The dredging operation for the backhoe will continue around

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:the clock for eight weeks. Dredging at a rate of 90 m3 /hour will continue for 10 hours. A barge

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:will then carry the dredged material to an open water disposal site. The round trip will take 2

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:hours. Dredging for another 10 hours will then begin. The hopper dredge will operate for 12

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:hours at a rate of 300 m3 /hour around the clock. At the end of 12 hours of dredging, the dredge

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:will transport the dredged material to the disposal site. This activity will take 1.5 hours.

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:Dredging will then begin for another 12 hours. Both of these dredging activities are represented

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:of the backhoe is expected to be small over a 10 hour dredging period. However, the line source

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:for the hopper dredge runs from the entrance of the Seaton Channel into the turning basin. This

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:line source is shown in Figure 4-9. Assuming that the hopper speed during dredging is 2 kts, it

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:traversed 24 times (representing 12 hours of dredging) during each dredging cycle.

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:Based on sediment samples provided by DNV, it was assumed that 92% of the dredged material

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:3% of the sediment dredged by the hopper dredge would be released into the water column over

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:the lower 1.5 m of the water column. For the backhoe, it was assumed that 8% of the dredged

Appendix 16.1a - DNV Report Rev1 2004.pdf:27:showed that 10% was released during dredging with a backhoe in 15-20 ft of water (U.S. Army

Appendix 16.1a - DNV Report Rev1 2004.pdf:28:Corps of Engineers 2000). John Land (personal communication) of Dredging Research Limited

Appendix 16.1a - DNV Report Rev1 2004.pdf:28:stated that his best estimate would be 6-8% of the dredged volume. Therefore, it was decided to

Appendix 16.1a - DNV Report Rev1 2004.pdf:28:Allen Teeter of CHT led to assuming that the bulk density of the sediments being dredged with a

Appendix 16.1a - DNV Report Rev1 2004.pdf:28:backhoe was likely to be about 1.6 g/cc, whereas the bulk density of material to be dredged in

Appendix 16.1a - DNV Report Rev1 2004.pdf:28:Figure 4-9 Line source for hopper dredge

Appendix 16.1a - DNV Report Rev1 2004.pdf:28:been modelled. For scenarios which involves dredging the model grid has been manipulated to

Appendix 16.1a - DNV Report Rev1 2004.pdf:28: 1. Dredging of dock to -6.65 m LAT and holding basin to – 9.5 m LAT

Appendix 16.1a - DNV Report Rev1 2004.pdf:28: 2. Dredging of the dock to -6.65 m LAT and Seaton Channel to – 8.5 m LAT

Appendix 16.1a - DNV Report Rev1 2004.pdf:29: 3. Dredging of the dock to – 6.65 m LAT and quays 10 and 11 to – 12 m LAT (50 m off and

Appendix 16.1a - DNV Report Rev1 2004.pdf:29: 4. Dredging of the dock to -6.65 m LAT, Seaton Channel to -8.5 m LAT and quays 10 and

Appendix 16.1a - DNV Report Rev1 2004.pdf:29: 5. Dock closed and holding basin dredged to -9.5 m LAT

Appendix 16.1a - DNV Report Rev1 2004.pdf:29: 6. Dock closed and Seaton Channel dredged to – 8.5 m LAT

Appendix 16.1a - DNV Report Rev1 2004.pdf:29: 7. Dock closed and quays 10 and 11 dredged to – 12 m LAT

Appendix 16.1a - DNV Report Rev1 2004.pdf:29: 8. Dock closed, Seaton Channel dredged to -8.5 m LAT and quays 10 and 11 dredged to -12

Appendix 16.1a - DNV Report Rev1 2004.pdf:29: 9. Dock closed, Seaton Channel dredged to -8.5 m LAT and quays 10 and 11 extended and

Appendix 16.1a - DNV Report Rev1 2004.pdf:29: dredged to -12.5 m LAT

Appendix 16.1a - DNV Report Rev1 2004.pdf:29: movements. This item will also cover possible need for maintenance dredging; and

Appendix 16.1a - DNV Report Rev1 2004.pdf:29:regime as a result of the planned dredging operations at the TERRC facility. The level of

Appendix 16.1a - DNV Report Rev1 2004.pdf:29:contamination in the dredging areas and at Seals Sand has been mapped and compared with

Appendix 16.1a - DNV Report Rev1 2004.pdf:29:Cr, Cu, Hg, Ni, Pb and Zn), PCBs, PAHs and TBT in dredging area 1 to 4. On Seals Sands the

Appendix 16.1a - DNV Report Rev1 2004.pdf:30:velocities stem from the unnaturally large cross sectional area of the channel due to dredging.

Appendix 16.1a - DNV Report Rev1 2004.pdf:30:The main bulk of sediments originate from the seaward boundary /2/. Maintenance dredging of

Appendix 16.1a - DNV Report Rev1 2004.pdf:31:particles “after disturbance by storms, shipping and dredging” /2/.

Appendix 16.1a - DNV Report Rev1 2004.pdf:31:dredging resulting in less suspended sediment, or from a combination of these possibilities.

Appendix 16.1a - DNV Report Rev1 2004.pdf:31:Another important source of sediment re-distribution is the continuous dredging operations

Appendix 16.1a - DNV Report Rev1 2004.pdf:31:distribution in the estuary /2/. Both development and maintenance dredging create sediment

Appendix 16.1a - DNV Report Rev1 2004.pdf:31:fractions of sediments up- and downstream at great lengths from the dredging area.

Appendix 16.1a - DNV Report Rev1 2004.pdf:33:dredging, as the near bed velocities are generally too low to erode deposited sediment. This

Appendix 16.1a - DNV Report Rev1 2004.pdf:33:sediment is disturbed some other way (dredging, shipping). Suspended sediments concentrations

Appendix 16.1a - DNV Report Rev1 2004.pdf:34:from EA. The plot shows that the areas to be dredged, excluding the Dry/Wet dock, namely

Appendix 16.1a - DNV Report Rev1 2004.pdf:34:when considering the dredging areas. The grain size data which this is based on gives no

Appendix 16.1a - DNV Report Rev1 2004.pdf:35:Figure 5-4 Percent silt/clay in the dredging areas and Seal Sands

Appendix 16.1a - DNV Report Rev1 2004.pdf:36:no dredg/closed dredged dredged Cycle

Appendix 16.1a - DNV Report Rev1 2004.pdf:36:1 Dredg of dock (incl bund & HB) Dredged No No 14 days

Appendix 16.1a - DNV Report Rev1 2004.pdf:36:2 Dredg of dock and Seaton Channel Dredged Yes No 14 days

Appendix 16.1a - DNV Report Rev1 2004.pdf:36:3 Dredg of dock and Q10 and Q11 Dredged No Yes 14 days

Appendix 16.1a - DNV Report Rev1 2004.pdf:36:4 Dredg dock, SC and Q10 & 11 Dredged Yes Yes 14 days

Appendix 16.1a - DNV Report Rev1 2004.pdf:36:5 Dock closed (bund + HB dredg) Closed No No 14 days

Appendix 16.1a - DNV Report Rev1 2004.pdf:36:6 Dock closed dredg Seaton Channel Closed Yes No 14 days

Appendix 16.1a - DNV Report Rev1 2004.pdf:36:7 Dock closed dredg Q10 & Q11 Closed No Yes 14 days

Appendix 16.1a - DNV Report Rev1 2004.pdf:36:8 D.Close, dredg SC, Q10 & Q11 (-12 m) Closed Yes Yes 14 days

Appendix 16.1a - DNV Report Rev1 2004.pdf:36:9 D.Close, dredg SC, Q10 & Q11 (-12.5 m) Closed Yes Yes 14 days

Appendix 16.1a - DNV Report Rev1 2004.pdf:38:because after dredging the tidal volume can pass trough a greater river cross section.

Appendix 16.1a - DNV Report Rev1 2004.pdf:38:will be exposed after the dredging and which may alter the flow. There were no data available

Appendix 16.1a - DNV Report Rev1 2004.pdf:38:for the sediment type at the planned dredging depth so the calculations have been based on data

Appendix 16.1a - DNV Report Rev1 2004.pdf:40:are related to scenario 6 (when the dock is closed and Seaton Channel is dredged) and 8 (Dock

Appendix 16.1a - DNV Report Rev1 2004.pdf:40:closed, Seaton channel and quays 10 and 11 dredged). The least changes in velocities can be

Appendix 16.1a - DNV Report Rev1 2004.pdf:40:seen for scenario 1 (Dock and Holding basin dredged) and 3(Dock and Quays 10 & 11 dredged).

Appendix 16.1a - DNV Report Rev1 2004.pdf:44:the bounds of Seaton Channel (location 1, 2 and 3). This is in the dredging areas and is also the

Appendix 16.1a - DNV Report Rev1 2004.pdf:44:scenario 6 (when the dock is closed and Seaton Channel is dredged) and 8 (Dock closed, Seaton

Appendix 16.1a - DNV Report Rev1 2004.pdf:44:channel and quays 10 and 11 dredged). The least changes in velocities can be seen for scenario 1

Appendix 16.1a - DNV Report Rev1 2004.pdf:44:(Dock and Holding basin dredged) and 3( Dock and Quays 10 & 11 dredged). It is important to

Appendix 16.1a - DNV Report Rev1 2004.pdf:44:underline that estimated shear stress after dredging is somewhat artificial, because the bed is

Appendix 16.1a - DNV Report Rev1 2004.pdf:44:assumed to be completely flat reflecting the proposed dredging depth.

Appendix 16.1a - DNV Report Rev1 2004.pdf:50:water flow and sediment suspension such as storms, waves, traffic and dredging will produce a

Appendix 16.1a - DNV Report Rev1 2004.pdf:50:Throughout the various scenarios, changes are made in the geometry to reflect the dredging and

Appendix 16.1a - DNV Report Rev1 2004.pdf:50:closing of the dry dock, dredging of the holding basin, various quays, and Seaton Channel. It is

Appendix 16.1a - DNV Report Rev1 2004.pdf:53:offshore structures. Throughout the late 1960’s and 70’s Seaton Channel was dredged several

Appendix 16.1a - DNV Report Rev1 2004.pdf:53:times in order to float out offshore structures, and maintenance dredging has been carried out

Appendix 16.1a - DNV Report Rev1 2004.pdf:53:Seaton Channel has been dredged routinely, with some additional dredging for the float-out of

Appendix 16.1a - DNV Report Rev1 2004.pdf:53:present dredged to some degree.

Appendix 16.1a - DNV Report Rev1 2004.pdf:53:In 1990-91, Halcrow and HR Wallingford undertook a strategic review of dredging and siltation,

Appendix 16.1a - DNV Report Rev1 2004.pdf:53:showing that the estuary was dredged more than necessary for navigation, resulting in the estuary

Appendix 16.1a - DNV Report Rev1 2004.pdf:53:the upstream migration of finer particles “after disturbance by storms, shipping and dredging”.

Appendix 16.1a - DNV Report Rev1 2004.pdf:53:Barrage, possible reasons may be changes in weather patterns, decreased dredging rates or a

Appendix 16.1a - DNV Report Rev1 2004.pdf:54:the dredged area, restricting ship movements.

Appendix 16.1a - DNV Report Rev1 2004.pdf:54:In fact the dredging quantities reported for “Chart 9” (see Figure 3-8 above) have doubled lately,

Appendix 16.1a - DNV Report Rev1 2004.pdf:54:calculation is, however, based upon dredged quantities, and may simply be a product of

Appendix 16.1a - DNV Report Rev1 2004.pdf:54:privatisation of the Porch Authority and an efficiency improvement of dredging, so that cost

Appendix 16.1a - DNV Report Rev1 2004.pdf:54:savings on dredging operations have resulted in a reported drop in deposition rates. If indeed

Appendix 16.1a - DNV Report Rev1 2004.pdf:54:dredging has fallen below deposition rates, the bed levels are rising and the Tees estuary is

Appendix 16.1a - DNV Report Rev1 2004.pdf:54:silting up. It is reportedly the view of dredging staff that dredging rates are too low to sustain

Appendix 16.1a - DNV Report Rev1 2004.pdf:54:(post-barrage) being in excess of the 1 Mm3/y dredged, it is clear that the estuary is silting up.

Appendix 16.1a - DNV Report Rev1 2004.pdf:54: undercurrent) and re-suspension by dredging and shipping activities

Appendix 16.1a - DNV Report Rev1 2004.pdf:54: - The trend of sand accretion at Seal Sands may be stemmed by dredging of Seaton

Appendix 16.1a - DNV Report Rev1 2004.pdf:55:shows a trend towards finer sediments, possibly from dredging operations. This is somewhat in

Appendix 16.1a - DNV Report Rev1 2004.pdf:55:also mentions that theoretically, the impacts of the barrage, changes in maintenance dredging etc.

Appendix 16.1a - DNV Report Rev1 2004.pdf:56:PD Teesport /6/ provided access to the most recent dredging control charts for a detailed

Appendix 16.1a - DNV Report Rev1 2004.pdf:56:bathymetry of the dredged areas. The bathymetry was supplemented by the EA bathymetry data

Appendix 16.1a - DNV Report Rev1 2004.pdf:57:7 MODELLING OF DREDGING OPERATIONS - SSFATE

Appendix 16.1a - DNV Report Rev1 2004.pdf:57:For the backhoe dredging, four separate locations of the dredging were assumed. Location 1 was

Appendix 16.1a - DNV Report Rev1 2004.pdf:57:set to be in the back end of the dredging area labelled 1 in Figure 3-1. Location 2 was taken near

Appendix 16.1a - DNV Report Rev1 2004.pdf:57:representative of dredging using a backhoe. The hopper dredge operates along the dredging line

Appendix 16.1a - DNV Report Rev1 2004.pdf:57:shown in Figure 4-9. With the four locations for the backhoe dredging and the hopper line

Appendix 16.1a - DNV Report Rev1 2004.pdf:57:location, 5 dredging operations were simulated. With each simulation being conducted during

Appendix 16.1a - DNV Report Rev1 2004.pdf:57:one moves away from the dredging source, the plume is composed of only fine silt and clay

Appendix 16.1a - DNV Report Rev1 2004.pdf:57:particles, with the coarser material being deposited near the dredging site. Pictures of the bottom

Appendix 16.1a - DNV Report Rev1 2004.pdf:57:7.1 Backhoe Dredge Results

Appendix 16.1a - DNV Report Rev1 2004.pdf:57:Figure 7-1 shows the maximum sediment concentrations in the plume resulting from dredging at

Appendix 16.1a - DNV Report Rev1 2004.pdf:57:the dredge. Figure 7-2 shows the bottom deposition of the released sediments as a mass per unit

Appendix 16.1a - DNV Report Rev1 2004.pdf:57:the spring tide plume is also greater than 1000 mg/l very near the dredge. Bottom deposition is

Appendix 16.1a - DNV Report Rev1 2004.pdf:58:Figure 7-2 Bottom deposition (g/m2 after 2 days of dredging) for backhoe at location 1 in

Appendix 16.1a - DNV Report Rev1 2004.pdf:59:Figure 7-4 Bottom deposition (g/m2 after 2 days of dredging) for backhoe at location 1 in

Appendix 16.1a - DNV Report Rev1 2004.pdf:59:As the dredging proceeds toward the middle of Area #1, Figure 7-5 shows that for a neap tide the

Appendix 16.1a - DNV Report Rev1 2004.pdf:59:concentrations near the dredge in excess of 1000 mg/l. Figure 7-6 illustrates the bottom

Appendix 16.1a - DNV Report Rev1 2004.pdf:59:deposition. For dredging during a spring tide, Figure 7-7 displays the suspended sediment plume

Appendix 16.1a - DNV Report Rev1 2004.pdf:59:#1. Maximum concentrations near the dredge are still higher than 1000 mg/l, with the extent of

Appendix 16.1a - DNV Report Rev1 2004.pdf:60:Figure 7-5 Backhoe dredging, Location #2, neap tide, max sediment concentrations mg/l.

Appendix 16.1a - DNV Report Rev1 2004.pdf:60:Figure 7-6 Backhoe dredging, Location #2, neap tide, sediment deposition g/m2 after 2 days

Appendix 16.1a - DNV Report Rev1 2004.pdf:60:of dredging.

Appendix 16.1a - DNV Report Rev1 2004.pdf:60:Figure 7-7 Backhoe dredging, Location #2, spring tide, max sediment concentrations mg/l.

Appendix 16.1a - DNV Report Rev1 2004.pdf:61:Figure 7-8 Backhoe dredging, Location #2, spring tide, sediment deposition g/m2 after 2

Appendix 16.1a - DNV Report Rev1 2004.pdf:61:days of dredging.

Appendix 16.1a - DNV Report Rev1 2004.pdf:61:For dredging in Area #2, both the neap and spring tide simulations generate significant plumes,

Appendix 16.1a - DNV Report Rev1 2004.pdf:61:dredge are again in excess of 1000 mg/l for both plumes. Again, due to much larger currents, the

Appendix 16.1a - DNV Report Rev1 2004.pdf:61:Figure 7-9 Backhoe dredging, Area 2, neap tide, max sediment concentrations mg/l

Appendix 16.1a - DNV Report Rev1 2004.pdf:62:Figure 7-10 Backhoe dredging, Area 2, neap tide, sediment deposition g/m2 after 2 days of

Appendix 16.1a - DNV Report Rev1 2004.pdf:62:dredging.

Appendix 16.1a - DNV Report Rev1 2004.pdf:62:Figure 7-11 Backhoe dredging, Area 2, spring tide, max sediment concentrations mg/l.

Appendix 16.1a - DNV Report Rev1 2004.pdf:63:Figure 7-12 Backhoe dredging, Area 2, spring tide, sediment deposition g/m2 after 2 days

Appendix 16.1a - DNV Report Rev1 2004.pdf:63:of dredging.

Appendix 16.1a - DNV Report Rev1 2004.pdf:63:Results from dredging with a backhoe in Area #3 are shown in Figure 7-13 to Figure 7-16.

Appendix 16.1a - DNV Report Rev1 2004.pdf:63:Figure 7-13 Backhoe dredging, Area 3, neap tide, max sediment concentrations mg/l.

Appendix 16.1a - DNV Report Rev1 2004.pdf:64:Figure 7-14 Backhoe dredging, Area 3, neap tide, sediment deposition g/m2 after 2 days of

Appendix 16.1a - DNV Report Rev1 2004.pdf:64:dredging.

Appendix 16.1a - DNV Report Rev1 2004.pdf:64:Figure 7-15 Backhoe dredging, Area 3, spring tide, max sediment concentrations mg/l.

Appendix 16.1a - DNV Report Rev1 2004.pdf:65:Figure 7-16 Backhoe dredging, Area 3, spring tide, sediment deposition g/m2 after 2 days

Appendix 16.1a - DNV Report Rev1 2004.pdf:65:of dredging.

Appendix 16.1a - DNV Report Rev1 2004.pdf:65:7.2 Hopper Dredge Results

Appendix 16.1a - DNV Report Rev1 2004.pdf:65:generated from the hopper dredging during a neap and spring tide, respectively. As for the

Appendix 16.1a - DNV Report Rev1 2004.pdf:65:backhoe dredge, the plume created during spring tide dredging is much larger than that created

Appendix 16.1a - DNV Report Rev1 2004.pdf:65:dredging line. The spring tide suspended sediment plume extents all the way to the boundary of

Appendix 16.1a - DNV Report Rev1 2004.pdf:65:Figure 7-17 Hopper dredging, neap tide, max sediment concentrations mg/l

Appendix 16.1a - DNV Report Rev1 2004.pdf:66:Figure 7-18 Hopper dredging, neap tide, sediment deposition g/m2 after 2 days of dredging.

Appendix 16.1a - DNV Report Rev1 2004.pdf:66:Figure 7-19 Hopper dredging, spring tide, max sediment concentrations mg/l

Appendix 16.1a - DNV Report Rev1 2004.pdf:67:Figure 7-20 Hopper dredging, spring tide, sediment deposition g/m2 after 2 days of

Appendix 16.1a - DNV Report Rev1 2004.pdf:67:dredging.

Appendix 16.1a - DNV Report Rev1 2004.pdf:67:7.3 Backhoe and hopper dredges operating simultaneously

Appendix 16.1a - DNV Report Rev1 2004.pdf:67:dredge and the backhoe dredge are both operating at the same time. It can be seen that little

Appendix 16.1a - DNV Report Rev1 2004.pdf:67:Areas #2 and #3 are being dredged while the Seaton Channel is being dredged, but the

Appendix 16.1a - DNV Report Rev1 2004.pdf:67:plume generated from only one dredge operating at a time.

Appendix 16.1a - DNV Report Rev1 2004.pdf:68:and backhoe in dredging area 1 to 4 on neap (N) and spring (S) tides

Appendix 16.1a - DNV Report Rev1 2004.pdf:72:The level of contamination in the dredging areas and at Seals Sand has been mapped and

Appendix 16.1a - DNV Report Rev1 2004.pdf:72:metals (Ar, Cd, Cr, Cu, hg, Ni, Pb and Zn), PCBs, PAHs and TBT in dredging area 1 to 4 (see

Appendix 16.1a - DNV Report Rev1 2004.pdf:75:See Section 3.2 above regarding maintenance dredging of Seaton Channel including the holding

Appendix 16.1a - DNV Report Rev1 2004.pdf:75:be dredged annually from Seaton Channel and the holding basin. The dry dock, when open,

Appendix 16.1a - DNV Report Rev1 2004.pdf:75:requires dredging of a further 12,500 m3.

Appendix 16.1a - DNV Report Rev1 2004.pdf:75:Seaton Channel is proposed dredged to -8.5 m LAT, such that a vessel with draft

Appendix 16.1a - DNV Report Rev1 2004.pdf:75:The Holding Basin is proposed dredged to -9.5 m, such that a vessel with draft

Appendix 16.1a - DNV Report Rev1 2004.pdf:75:Quay 10 and 11 are proposed to be dredged to -12 m LAT, such that a vessel with draft

Appendix 16.1a - DNV Report Rev1 2004.pdf:75:The dry dock is proposed dredged to -6.65 m LAT, so that a vessel with draft

Appendix 16.1a - DNV Report Rev1 2004.pdf:77: Waves Dredging

Appendix 16.1a - DNV Report Rev1 2004.pdf:78:sedimentation patterns, traffic and dredging. Dredging operations, as modelled in Section 7

Appendix 16.1a - DNV Report Rev1 2004.pdf:78:condition, may extend considerable distances. Indeed, dredging of the Tees estuary is a

Appendix 16.1a - DNV Report Rev1 2004.pdf:79:10.2 Dredging

Appendix 16.1a - DNV Report Rev1 2004.pdf:79:be generated by the two dredging operations; namely, a backhoe and a hopper dredge. Maximum

Appendix 16.1a - DNV Report Rev1 2004.pdf:79:total suspended sediment concentrations can exceed 1000 mg/l for the backhoe dredge, but are

Appendix 16.1a - DNV Report Rev1 2004.pdf:79:less for the hopper dredge. In all cases, the concentrations drop off quickly away from the

Appendix 16.1a - DNV Report Rev1 2004.pdf:79:dredge.

Appendix 16.1a - DNV Report Rev1 2004.pdf:79:The size of the sediment plumes are significantly larger when dredging during a spring tide

Appendix 16.1a - DNV Report Rev1 2004.pdf:79:versus dredging during a neap tide. The size of the plumes generated by the hopper dredge can

Appendix 16.1a - DNV Report Rev1 2004.pdf:79:For the case of both dredges operating simultaneously, there will be little interaction of the

Appendix 16.1a - DNV Report Rev1 2004.pdf:79:interaction will occur when dredging Areas #2 and #3 with a backhoe with the hopper dredge

Appendix 16.1a - DNV Report Rev1 2004.pdf:79:Some of the released sediments for both the backhoe and the hopper dredge are transported into

Appendix 16.1a - DNV Report Rev1 2004.pdf:79:tide, suspended sediments can be transported out to the sea as a result of the hopper dredge

Appendix 16.1a - DNV Report Rev1 2004.pdf:79:and dredging contribute to the sediment load in the water column and thereby the annual

Appendix 16.1a - DNV Report Rev1 2004.pdf:79:water column from the proposed dredging operations these are by far dominating compared to

Appendix 16.1a - DNV Report Rev1 2004.pdf:80:contributing to the increased sediment loads over the largest areas. Dredging is taking place

Appendix 16.1a - DNV Report Rev1 2004.pdf:80:almost continuously in the Tees estuary due to i.e. maintenance dredging. As a result of this it is

Appendix 16.1a - DNV Report Rev1 2004.pdf:80:10.3.2 Impact of dredging operations

Appendix 16.1a - DNV Report Rev1 2004.pdf:80:within the bounds of Seaton Channel. The dredging operations are modelled to yield sediment

Appendix 16.1a - DNV Report Rev1 2004.pdf:80:Channel will be dominated by the dredging operations as long as these are undertaken.

Appendix 16.1a - DNV Report Rev1 2004.pdf:80:The backhoe dredging operations generally affect Seaton Channel, both the inner and outer parts,

Appendix 16.1a - DNV Report Rev1 2004.pdf:80:The hopper dredge operation will affect both inner and outer parts of Seaton channel, the whole

Appendix 16.1a - DNV Report Rev1 2004.pdf:80:over 100 mg/l and up to 1000 mg/l. On Seal Sands the dredging operations are modelled to yield

Appendix 16.1a - DNV Report Rev1 2004.pdf:80:are modelled to be in the range of 10-50 mg/l. For the case of both dredges operating

Appendix 16.1a - DNV Report Rev1 2004.pdf:80:backhoe is operating in dredging Area 1. However, some interaction will occur when dredging

Appendix 16.1a - DNV Report Rev1 2004.pdf:80:areas 2 and 3 with a backhoe with the hopper dredge operating at the same time. But the

Appendix 16.1a - DNV Report Rev1 2004.pdf:80:plume generated from only one dredge operating at a time.

Appendix 16.1a - DNV Report Rev1 2004.pdf:81:concentrations of sediments in the water column during the dredging operations may cause

Appendix 16.1a - DNV Report Rev1 2004.pdf:81:Dredging area 4 and 5 with the hopper dredge will lead to a significant increase in sediment load

Appendix 16.1a - DNV Report Rev1 2004.pdf:81:per day (see Figure 7-18 and Figure 7-20). After 12 weeks of dredging this is equivalent to 420-

Appendix 16.1a - DNV Report Rev1 2004.pdf:81:sediments on Seal sands, possibly from dredging operations. Dredging operations in general

Appendix 16.1a - DNV Report Rev1 2004.pdf:81:always have an impact on the benthic fauna. The fauna in the dredging areas are removed and

Appendix 16.1a - DNV Report Rev1 2004.pdf:81:the fauna in areas of high sedimentation due to the dredging operations are disturbed,

Appendix 16.1a - DNV Report Rev1 2004.pdf:81:good knowledge of the existing fauna. As dredging operations have been going on in the area for

Appendix 16.1a - DNV Report Rev1 2004.pdf:81:dredging area 1 to 4 has been mapped and compared against international recognised risk limits

Appendix 16.1a - DNV Report Rev1 2004.pdf:81:all dredging areas (bulk samples), generally from the surface down to 1 m sediment depth. Five

Appendix 16.1a - DNV Report Rev1 2004.pdf:82:Benzo(a)pyrene in the bulk samples is due to a generally high level in all dredging areas or if

Appendix 16.1a - DNV Report Rev1 2004.pdf:82:generally high in Seaton Channel and Seal Sands sediments. The dredging operations will

Appendix 16.1a - DNV Report Rev1 2004.pdf:83:/6/ PD Teesport Conservancy Division, Dredging control charts, sounded throughout

Appendix 16.1a - DNV Report Rev1 2004.pdf:83:/15/ Land, J. (Personal communication 2004). Dredging Research Limited. Surrey, United

Appendix 16.1a - DNV Report Rev1 2004.pdf:83: of sediment resuspension characteristics of selected dredges,” Technical Report HL-89-

Appendix 16.1a - DNV Report Rev1 2004.pdf:95:Concentration of CB#105 (µg/kg dry weight) in dredging areas 1 to 4. Sediment quality

Appendix 16.1a - DNV Report Rev1 2004.pdf:95:Concentration of CB#118 (µg/kg dry weight) in dredging areas 1 to 4. Sediment quality

Appendix 16.1a - DNV Report Rev1 2004.pdf:96:Concentration of CB#153 (µg/kg dry weight) in dredging areas 1 to 4. Sediment quality

Appendix 16.1a - DNV Report Rev1 2004.pdf:96:Concentration of CB#156 (µg/kg dry weight) in dredging areas 1 to 4. Sediment quality

Appendix 16.1a - DNV Report Rev1 2004.pdf:97:in dredging areas 1 to 4. Sediment quality thresholds for the mixture of planar congeners

Appendix 16.1a - DNV Report Rev1 2004.pdf:99:Concentration of TBT (mg/kg dry weight) in dredging areas 1 to 4. Sediment quality

Appendix 16.1a - DNV Report Rev1 2004.pdf:99: Location in dredging area 4; Seaton Channel. Sediment

Appendix 16.1a - DNV Report Rev1 2004.pdf:101:Concentration of Acenaphene (mg/kg dry weight) in dredging areas 1 to 4. Sediment

Appendix 16.1a - DNV Report Rev1 2004.pdf:101:Concentration of Acenaphthylene (mg/kg dry weight) in dredging areas 1 to 4. Sediment

Appendix 16.1a - DNV Report Rev1 2004.pdf:102:Concentration of Anthracene (mg/kg dry weight) in dredging areas 1 to 4. Sediment

Appendix 16.1a - DNV Report Rev1 2004.pdf:102:Concentration of Benzo(a)anthracene (mg/kg dry weight) in dredging areas 1 to 4.

Appendix 16.1a - DNV Report Rev1 2004.pdf:103:Concentration of Benzo(a)pyrene (mg/kg dry weight) in dredging areas 1 to 4. Sediment

Appendix 16.1a - DNV Report Rev1 2004.pdf:103:Concentration of Chrysene (mg/kg dry weight) in dredging areas 1 to 4. Sediment quality

Appendix 16.1a - DNV Report Rev1 2004.pdf:104:Concentration of Dibenz(a,h)anthracene (mg/kg dry weight) in dredging areas 1 to 4.

Appendix 16.1a - DNV Report Rev1 2004.pdf:104:Concentration of Fluoranthene (mg/kg dry weight) in dredging areas 1 to 4. Sediment

Appendix 16.1a - DNV Report Rev1 2004.pdf:105:Concentration of Fluorene (mg/kg dry weight) in dredging areas 1 to 4. Sediment quality

Appendix 16.1a - DNV Report Rev1 2004.pdf:105:Concentration of Naphthalene (mg/kg dry weight) in dredging areas 1 to 4. Sediment

Appendix 16.1a - DNV Report Rev1 2004.pdf:106:Concentration of Phenanthrene (mg/kg dry weight) in dredging areas 1 to 4. Sediment

Appendix 16.1a - DNV Report Rev1 2004.pdf:106:Concentration of Pyrene (mg/kg dry weight) in dredging areas 1 to 4. Sediment quality

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:1 Dredging of dock and holding basin 0.047 0.89 sand 0.32 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:2 Dredg dock and Seaton Channel 0.049 0.85 sand 0.30 sand 97% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:3 Dredg doc, and Q10/Q11 0.046 0.90 sand 0.32 sand 101% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:4 Dredg dock, SC and Q10/Q11 0.043 0.85 sand 0.31 sand 98% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:6 Dock cl, dredged Seaton Channel 0.044 0.86 sand 0.31 sand 98% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:7 Dock cl, dredged Q10/Q11 0.043 0.86 sand 0.31 sand 99% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:8 Dock cl, dredged SC and Q10/Q11 0.040 0.82 sand 0.30 sand 95% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:9 Dock cl, dredged SC and Q10/Q11 extended 0.050 0.84 sand 0.31 sand 96 % sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:1 Dredging of dock and holding basin 0.095 0.71 sand 0.25 sand 101% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:2 Dredg dock and Seaton Channel 0.091 0.68 sand 0.24 sand 97% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:3 Dredg doc, and Q10/Q11 0.094 0.72 sand 0.25 sand 101% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:4 Dredg dock, SC and Q10/Q11 0.091 0.69 sand 0.24 sand 98% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:6 Dock cl, dredged Seaton Channel 0.092 0.69 sand 0.24 sand 98% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:7 Dock cl, dredged Q10/Q11 0.092 0.70 sand 0.25 sand 99% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:8 Dock cl, dredged SC and Q10/Q11 0.089 0.67 sand 0.24 sand 96% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:108:9 Dock cl, dredged SC and Q10/Q11 extended 0.090 0.68 sand 0.24 sand 96 % sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:109:1 Dredging of dock and holding basin 0.470 2.12 sand 0.71 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:109:2 Dredg dock and Seaton Channel 0.402 2.07 sand 0.70 sand 96% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:109:3 Dredg doc, and Q10/Q11 0.470 2.12 sand 0.71 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:109:4 Dredg dock, SC and Q10/Q11 0.402 2.07 sand 0.70 sand 96% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:109:6 Dock cl, dredged Seaton Channel 0.402 2.07 sand 0.71 sand 98% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:109:7 Dock cl, dredged Q10/Q11 0.449 2.07 sand 0.70 sand 98% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:109:8 Dock cl, dredged SC and Q10/Q11 0.383 2.02 sand 0.69 sand 98% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:109:9 Dock cl, dredged SC and Q10/Q11 extended 0.390 2.05 sand 0.70 sand 96% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:109:1 Dredging of dock and holding basin 0.552 4.93 sand 1.96 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:109:2 Dredg dock and Seaton Channel 0.552 4.93 sand 1.96 sand 98% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:109:3 Dredg doc, and Q10/Q11 0.552 4.93 sand 1.96 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:109:4 Dredg dock, SC and Q10/Q11 0.552 4.92 sand 1.96 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:109:6 Dock cl, dredged Seaton Channel 0.545 4.89 sand 1.96 sand 98% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:109:7 Dock cl, dredged Q10/Q11 0.545 4.89 sand 1.95 sand 99% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:110:8 Dock cl, dredged SC and Q10/Q11 0.545 4.88 sand 1.95 sand 99% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:110:9 Dock cl, dredged SC and Q10/Q11 extended 0.545 4.88 sand 1.95 sand 99% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:110:1 Dredging of dock and holding basin 0.074 6.48 sand 3.28 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:110:2 Dredg dock and Seaton Channel 0.074 6.48 sand 3.28 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:110:3 Dredg doc, and Q10/Q11 0.074 6.48 sand 3.28 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:110:4 Dredg dock, SC and Q10/Q11 0.074 6.48 sand 3.28 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:110:6 Dock cl, dredged Seaton Channel 0.073 6.48 sand 3.28 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:110:7 Dock cl, dredged Q10/Q11 0.073 6.45 sand 3.28 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:110:8 Dock cl, dredged SC and Q10/Q11 0.073 6.45 sand 3.27 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:110:9 Dock cl, dredged SC and Q10/Q11 extended 0.545 6.45 sand 3.27 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:110:1 Dredging of dock and holding basin 0.028 9.80 sand 7.70 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:110:2 Dredg dock and Seaton Channel 0.028 9.80 sand 7.70 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:110:3 Dredg doc, and Q10/Q11 0.028 9.80 sand 7.70 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:110:4 Dredg dock, SC and Q10/Q11 0.028 9.80 sand 7.70 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:111:6 Dock cl, dredged Seaton Channel 0.028 9.79 sand 7.70 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:111:7 Dock cl, dredged Q10/Q11 0.028 9.79 sand 7.70 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:111:8 Dock cl, dredged SC and Q10/Q11 0.028 9.79 sand 7.70 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:111:9 Dock cl, dredged SC and Q10/Q11 extended 0.545 9.79 sand 7.70 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:111:1 Dredging of dock and holding basin 0.206 0.40 sand 0.17 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:111:2 Dredg dock and Seaton Channel 0.206 0.40 sand 0.17 sand 100% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:111:3 Dredg doc, and Q10/Q11 0.206 0.40 sand 0.17 sand 99% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:111:4 Dredg dock, SC and Q10/Q11 0.206 0.40 sand 0.17 sand 99% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:111:6 Dock cl, dredged Seaton Channel 0.206 0.40 sand 0.17 sand 99% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:111:7 Dock cl, dredged Q10/Q11 0.206 0.39 sand 0.17 sand 98% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:111:8 Dock cl, dredged SC and Q10/Q11 0.206 0.39 sand 0.17 sand 98% sand

Appendix 16.1a - DNV Report Rev1 2004.pdf:111:9 Dock cl, dredged SC and Q10/Q11 extended 0.206 0.40 sand 0.17 sand 99% sand

Appendix 16.1d 2006-0416 V01 - Scenario 11 hydrodynamics.pdf:4:Station, and with the dredged area of Seaton Channel re-aligned. This work was reported in

Appendix 16.1d 2006-0416 V01 - Scenario 11 hydrodynamics.pdf:4:this scenario, the dry dock is closed, the holding basin dredged to -9.5 m, Seaton Channel dredge

Appendix 16.1d 2006-0416 V01 - Scenario 11 hydrodynamics.pdf:4:area is realigned with an 85 m wide channel deepened to -9.5 m, Quays 10 and 11 are dredged to

Appendix 16.1d 2006-0416 V01 - Scenario 11 hydrodynamics.pdf:14:/1/ Environmental assessment of dredging operations, changes in hydrodynamics and

3 EIS Appendices (3).pdf:5:Dredgers Submarines

3 EIS Appendices (3).pdf:37:NEL R.L. -10.000 DREDGED CHAN Seaton Port TERRC Facility

3 EIS Appendices (3).pdf:40: dredging work and steel piling operations. Assessment should also consider

3 EIS Appendices (3).pdf:40: iii. Dredging operations in order to ‘finish’ the dry dock and to allow for the

3 EIS Appendices (3).pdf:42: carriers, therefore a capital dredge is implied by this application. A properly

3 EIS Appendices (3).pdf:42: capital dredge capable of allowing their safe passage and the consequential

3 EIS Appendices (3).pdf:42: Its transport to intertidal areas during dredging operations. (Ai-vi) (Bi - v).

3 EIS Appendices (3).pdf:43:a) Dredging. The disposal of potentially contaminated dredged sediments

3 EIS Appendices (3).pdf:43: the dock whether in wet or dry conditions will need to be addressed. Dredging

3 EIS Appendices (3).pdf:43: SPA / Ramsar site. Any capital and maintenance dredging required should be

3 EIS Appendices (3).pdf:43: contaminants. Re-suspension of contaminants caused by dredging could

3 EIS Appendices (3).pdf:43: As mentioned above dredging will also increase water turbidity and the effects

3 EIS Appendices (3).pdf:43: Dredging activities in the area are regulated in conjunction with English

3 EIS Appendices (3).pdf:43: dredging times should be sought from English Nature.

3 EIS Appendices (3).pdf:43: The assessment of methods to reduce the impact of dredging is essential, e.g.

3 EIS Appendices (3).pdf:43: silt screens. A realistic dredging volume should be sought from PD Teesport.

3 EIS Appendices (3).pdf:81: 1. Dredging Dredger 2-4 weeks C3/95 100 110

3 EIS Appendices (3).pdf:83: Dredging * 2-4 weeks 57.0 52.4 52.0

3 EIS Appendices (3).pdf:85: have been predicted, it is proposed to carry out a capital dredge of the Channel. This is

3 EIS Appendices (3).pdf:85:1.17 The dredging works would take place if possible during the summer period when the SPA is

3 EIS Appendices (3).pdf:85: subject to maintenance dredging and would continue to be so after it is deepened by a capital

3 EIS Appendices (3).pdf:85: dredge next year.

3 EIS Appendices (3).pdf:85:1.18 The dredging operations are expected to generate a sound power level of 110dB (Table

3 EIS Appendices (3).pdf:85: noise levels are the maximum noise levels which will be encountered when dredging

3 EIS Appendices (3).pdf:85: dredger were at Location 3, the noise levels on the SPA directly opposite Location 3 would be

3 EIS Appendices (3).pdf:85:1.19 In addition to dredging, construction of Quays 1, 10 and 11 will generate noise which could

3 EIS Appendices (3).pdf:86: done concurrently with dredging. A noise map is provided in figure A8.2.2. The noise

3 EIS Appendices (3).pdf:86: emanating from piling is far less than that attributable to dredging. There is therefore no

3 EIS Appendices (3).pdf:86: towards Quay 1. Here noise emissions from dredging would be the same as these from piling

3 EIS Appendices (3).pdf:86: dredging is anticipated to take 12 weeks. Channel dredging close to Location 1 is estimated

3 EIS Appendices (3).pdf:86: to last for 1 week after which noise levels at location 1 will diminish significantly. The dredging

3 EIS Appendices (3).pdf:115:Environmental Assessment of Dredging Operations, Changes in

3 EIS Appendices (3).pdf:116: ENVIRONMENTAL ASSESSMENT OF DREDGING

3 EIS Appendices (3).pdf:117:and sediment transport due to dredging required in the development of the TERRC facility in the Tees Estuary.

3 EIS Appendices (3).pdf:117:deepening of the proposed dredging areas. Outside the bounds of Seaton Channel changes in velocities and

3 EIS Appendices (3).pdf:117:extensive dredging scenario the results indicate a decrease in average velocities of about 7 % on Seal Sands

3 EIS Appendices (3).pdf:117:from the suggested dredging operations will be much larger compared to tidal driven transport and

3 EIS Appendices (3).pdf:117:for the backhoe dredge, but are less for the hopper dredge. In all cases, the concentrations drop off quickly

3 EIS Appendices (3).pdf:117:away from the dredge. Some of the released sediments for both the backhoe and the hopper dredge are

3 EIS Appendices (3).pdf:117:transported into the shallow areas south of the Seaton Channel. The greatest impact are related to dredging

3 EIS Appendices (3).pdf:117:Seaton Channel with a hopper dredge on spring tide which yields a deposition rate around 100 g/m2 after only

3 EIS Appendices (3).pdf:117:2 days of dredging. Dredging around the clock for 12 weeks, as planned, can therefore introduce considerably

3 EIS Appendices (3).pdf:117:result of the planned dredging operations at the TERRC facility. The level of contamination in the dredging

3 EIS Appendices (3).pdf:117:have been mapped for several metals (Ar, Cd, Cr, Cu, Hg, Ni, Pb and Zn), PCBs, PAHs and TBT in dredging

3 EIS Appendices (3).pdf:117:Environmental assessment of dredging Hydrological modelling

3 EIS Appendices (3).pdf:118:3 DREDGING SCENARIOS AND VOLUMES ………………………………………………….3

3 EIS Appendices (3).pdf:118:3.1 Initial dredging 3

3 EIS Appendices (3).pdf:118:3.2 Maintenance dredging 8

3 EIS Appendices (3).pdf:118:4.1.4 Sediment transport due to dredging 21

3 EIS Appendices (3).pdf:119:7 MODELLING OF DREDGING OPERATIONS - SSFATE………………………………53

3 EIS Appendices (3).pdf:119:7.1 Backhoe Dredge Results 53

3 EIS Appendices (3).pdf:119:7.2 Hopper Dredge Results 61

3 EIS Appendices (3).pdf:119:7.3 Backhoe and hopper dredges operating simultaneously 63

3 EIS Appendices (3).pdf:119:10.2 Dredging 75

3 EIS Appendices (3).pdf:119:10.3.2 Impact of dredging operations 76

3 EIS Appendices (3).pdf:120:hydrodynamics and sediment transport due to dredging required in the development of the

3 EIS Appendices (3).pdf:120:Channel due to deepening of the proposed dredging areas. Outside the bounds of Seaton Channel

3 EIS Appendices (3).pdf:120:of Seaton Channel. For the most extensive dredging scenario the results indicate a decrease in

3 EIS Appendices (3).pdf:120:dredging operations will be much larger compared to tidal driven transport and sedimentation.

3 EIS Appendices (3).pdf:120:the backhoe dredge, but are less for the hopper dredge. In all cases, the concentrations drop off

3 EIS Appendices (3).pdf:120:quickly away from the dredge. Some of the released sediments for both the backhoe and the

3 EIS Appendices (3).pdf:120:hopper dredge are transported into the shallow areas south of the Seaton Channel. The greatest

3 EIS Appendices (3).pdf:120:impact are related to dredging Seaton Channel with a hopper dredge on spring tide which yields

3 EIS Appendices (3).pdf:120:a deposition rate around 100 g/m2 after only 2 days of dredging. Dredging around the clock for

3 EIS Appendices (3).pdf:121:assess the impact on hydrodynamics and sediment transport due to dredging required in the

3 EIS Appendices (3).pdf:121:bathymetry of the Seaton Channel and associated dredged areas. The second relates to water

3 EIS Appendices (3).pdf:121:column suspended sediment concentrations due to the dredging activity, which is done in co

3 EIS Appendices (3).pdf:121:see the impacts clearly, masking elements like floods, storms, waves, dredging activities and

3 EIS Appendices (3).pdf:121:floods, wave action and propeller currents. Dredging operations are investigated to some degree

3 EIS Appendices (3).pdf:121:to find the impact of dredging the TERRC dry dock and Seaton Channel, but the continuous

3 EIS Appendices (3).pdf:121:dredging operation along the River Tees and the estuary is not included.

3 EIS Appendices (3).pdf:121:that siltation rates and subsequent needs for maintenance dredging should not be based upon the

3 EIS Appendices (3).pdf:122:3 DREDGING SCENARIOS AND VOLUMES

3 EIS Appendices (3).pdf:122:Based on the bathymetry quantities for different dredging scenarios have been calculated.

3 EIS Appendices (3).pdf:122:3.1 Initial dredging

3 EIS Appendices (3).pdf:122:Figure 3-1 Overview of the dredging areas. 1) dry/wet dock, 2) Bund/cofferdam area, 3)

3 EIS Appendices (3).pdf:122:Detailed figures showing the bathymetry in each dredging area are presented below. The

3 EIS Appendices (3).pdf:122:bathymetric charts are drawn up such that the areas which need to be dredged are made as visible

3 EIS Appendices (3).pdf:123:Figure 3-2 Detailed bathymetry for dredging of Seaton Channel

3 EIS Appendices (3).pdf:123:Figure 3-3 Detailed bathymetry for dredging of Holding Basin

3 EIS Appendices (3).pdf:124:Figure 3-4 Detailed bathymetry for dredging of Quay 10 and 11

3 EIS Appendices (3).pdf:124:Figure 3-5 Detailed bathymetry for dredging of Bund/cofferdam area

3 EIS Appendices (3).pdf:125:Figure 3-6 Detailed bathymetry for dredging of Dry/wet dock

3 EIS Appendices (3).pdf:125:3-1. Based on the surface area of these two areas an assumption is made on the dredging

3 EIS Appendices (3).pdf:125:Calculated dredging volumes for different scenarios are presented in Table 3-1. In addition

3 EIS Appendices (3).pdf:125:dredging volumes for a proposed extension of quay 10 & 11 are calculated and presented in the

3 EIS Appendices (3).pdf:125:table. The areas of dredging related to the proposed extension are shown in Figure 3-7 below.

3 EIS Appendices (3).pdf:125:Figure 3-7 Areas of dredging for the proposed extension of Quay 10 and 11

3 EIS Appendices (3).pdf:126:Table 3-1 Calculated volumes of dredged sediments.

3 EIS Appendices (3).pdf:126:Scenario Reference area 2D area m Dredging depth Volume m3

3 EIS Appendices (3).pdf:127:3.2 Maintenance dredging

3 EIS Appendices (3).pdf:127:dredging will have a great impact on the sediment transport and distribution. It is unrealistic to

3 EIS Appendices (3).pdf:127:We have therefore based this estimate of probable dredging quantities during operation on

3 EIS Appendices (3).pdf:127:historical dredging quantities, and used the model results to indicate areas of higher and lower

3 EIS Appendices (3).pdf:127:Figure 3-8 “Chart 9” in Tees Estuary dredging plan /2/

3 EIS Appendices (3).pdf:128:The average annual dredging volume for “Chart 9” from 1991 to 2001 is found to be 106,000 m3

3 EIS Appendices (3).pdf:128:Table 3-3 Estimated annual maintenance dredging quantities from “chart 9” /2/

3 EIS Appendices (3).pdf:128:Based on chart 9 /2/ and when the dry dock is closed, an annual dredging volume of 23,000 m3 is

3 EIS Appendices (3).pdf:128:on calculated dredging areas in this project and will differ somewhat from the numbers in Table

3 EIS Appendices (3).pdf:128:Table 3-4 Estimated annual maintenance dredging for different scenarios, based on

3 EIS Appendices (3).pdf:128:calculated areas of the dredging areas in this project

3 EIS Appendices (3).pdf:129:Based on this maintenance dredging of all the areas in Figure 3-1 (Dock, bund/cofferdam,

3 EIS Appendices (3).pdf:129:Holding basin, Quays 10 and 11 50 m off and Seaton Channel), an annual dredging volume of

3 EIS Appendices (3).pdf:129:marked A, B and C in Figure 3-7, and total annual dredging volume then yields 43,191 m3.

3 EIS Appendices (3).pdf:130:response to a need for tools to assist dredging project managers confronted by requests for

3 EIS Appendices (3).pdf:131:transport, dispersion, and settling of suspended dredged material released to the water column as

3 EIS Appendices (3).pdf:131:a result of dredging operations. An integral component of the modelling system is the

3 EIS Appendices (3).pdf:132:Updated bathymetric data showing levels in the dredged parts of the Tees River, the Tees estuary

3 EIS Appendices (3).pdf:140:4.1.4 Sediment transport due to dredging

3 EIS Appendices (3).pdf:140:To determine suspended sediment plumes resulting from the dredging activities, a numerical

3 EIS Appendices (3).pdf:140:dredge and the hopper dredge. Results are generated with each working alone, with the results

3 EIS Appendices (3).pdf:140:then combined to show the impact of the two dredges working simultaneously. Plans call for the

3 EIS Appendices (3).pdf:140:backhoe dredge to work for eight weeks around the clock, with the hopper dredge working for

3 EIS Appendices (3).pdf:140:equilibrium suspended plume is established by the end of two days of dredging. Simulations

3 EIS Appendices (3).pdf:140:have been made for dredging during both neap and spring tides.

3 EIS Appendices (3).pdf:141:Figure 4-7 Geographical boundary of dredging model

3 EIS Appendices (3).pdf:141:sediment released by the dredging activity is simulated using particles, which are transported on

3 EIS Appendices (3).pdf:142:generated by the operation of the dredges. A backhoe dredge will be used in the areas labeled 1,

3 EIS Appendices (3).pdf:142:2, and 3 in Figure 3-1, whereas, a hopper dredge will be used in the Seaton Channel labelled 5

3 EIS Appendices (3).pdf:142:and the holding basin labelled 4. The dredging operation for the backhoe will continue around

3 EIS Appendices (3).pdf:142:the clock for eight weeks. Dredging at a rate of 90 m3 /hour will continue for 10 hours. A barge

3 EIS Appendices (3).pdf:142:will then carry the dredged material to an open water disposal site. The round trip will take 2

3 EIS Appendices (3).pdf:142:hours. Dredging for another 10 hours will then begin. The hopper dredge will operate for 12

3 EIS Appendices (3).pdf:142:hours at a rate of 300 m3 /hour around the clock. At the end of 12 hours of dredging, the dredge

3 EIS Appendices (3).pdf:142:will transport the dredged material to the disposal site. This activity will take 1.5 hours.

3 EIS Appendices (3).pdf:142:Dredging will then begin for another 12 hours. Both of these dredging activities are represented

3 EIS Appendices (3).pdf:142:of the backhoe is expected to be small over a 10 hour dredging period. However, the line source

3 EIS Appendices (3).pdf:142:for the hopper dredge runs from the entrance of the Seaton Channel into the turning basin. This

3 EIS Appendices (3).pdf:142:line source is shown in Figure 4-9. Assuming that the hopper speed during dredging is 2 kts, it

3 EIS Appendices (3).pdf:142:traversed 24 times (representing 12 hours of dredging) during each dredging cycle.

3 EIS Appendices (3).pdf:142:Based on sediment samples provided by DNV, it was assumed that 92% of the dredged material

3 EIS Appendices (3).pdf:142:3% of the sediment dredged by the hopper dredge would be released into the water column over

3 EIS Appendices (3).pdf:142:the lower 1.5 m of the water column. For the backhoe, it was assumed that 8% of the dredged

3 EIS Appendices (3).pdf:142:showed that 10% was released during dredging with a backhoe in 15-20 ft of water (U.S. Army

3 EIS Appendices (3).pdf:143:Corps of Engineers 2000). John Land (personal communication) of Dredging Research Limited

3 EIS Appendices (3).pdf:143:stated that his best estimate would be 6-8% of the dredged volume. Therefore, it was decided to

3 EIS Appendices (3).pdf:143:Allen Teeter of CHT led to assuming that the bulk density of the sediments being dredged with a

3 EIS Appendices (3).pdf:143:backhoe was likely to be about 1.6 g/cc, whereas the bulk density of material to be dredged in

3 EIS Appendices (3).pdf:143:Figure 4-9 Line source for hopper dredge

3 EIS Appendices (3).pdf:143:been modelled. For scenarios which involves dredging the model grid has been manipulated to

3 EIS Appendices (3).pdf:143: 1. Dredging of dock to -6.65 m LAT and holding basin to – 9.5 m LAT

3 EIS Appendices (3).pdf:143: 2. Dredging of the dock to -6.65 m LAT and Seaton Channel to – 8.5 m LAT

3 EIS Appendices (3).pdf:144: 3. Dredging of the dock to – 6.65 m LAT and quays 10 and 11 to – 12 m LAT (50 m off and

3 EIS Appendices (3).pdf:144: 4. Dredging of the dock to -6.65 m LAT, Seaton Channel to -8.5 m LAT and quays 10 and

3 EIS Appendices (3).pdf:144: 5. Dock closed and holding basin dredged to -9.5 m LAT

3 EIS Appendices (3).pdf:144: 6. Dock closed and Seaton Channel dredged to – 8.5 m LAT

3 EIS Appendices (3).pdf:144: 7. Dock closed and quays 10 and 11 dredged to – 12 m LAT

3 EIS Appendices (3).pdf:144: 8. Dock closed, Seaton Channel dredged to -8.5 m LAT and quays 10 and 11 dredged to -12

3 EIS Appendices (3).pdf:144: 9. Dock closed, Seaton Channel dredged to -8.5 m LAT and quays 10 and 11 extended and

3 EIS Appendices (3).pdf:144: dredged to -12.5 m LAT

3 EIS Appendices (3).pdf:144: movements. This item will also cover possible need for maintenance dredging; and

3 EIS Appendices (3).pdf:144:regime as a result of the planned dredging operations at the TERRC facility. The level of

3 EIS Appendices (3).pdf:144:contamination in the dredging areas and at Seals Sand has been mapped and compared with

3 EIS Appendices (3).pdf:144:Cr, Cu, Hg, Ni, Pb and Zn), PCBs, PAHs and TBT in dredging area 1 to 4. On Seals Sands the

3 EIS Appendices (3).pdf:145:velocities stem from the unnaturally large cross sectional area of the channel due to dredging.

3 EIS Appendices (3).pdf:145:The main bulk of sediments originate from the seaward boundary /2/. Maintenance dredging of

3 EIS Appendices (3).pdf:146:particles “after disturbance by storms, shipping and dredging” /2/.

3 EIS Appendices (3).pdf:146:dredging resulting in less suspended sediment, or from a combination of these possibilities.

3 EIS Appendices (3).pdf:146:Another important source of sediment re-distribution is the continuous dredging operations

3 EIS Appendices (3).pdf:146:distribution in the estuary /2/. Both development and maintenance dredging create sediment

3 EIS Appendices (3).pdf:146:fractions of sediments up- and downstream at great lengths from the dredging area.

3 EIS Appendices (3).pdf:148:dredging, as the near bed velocities are generally too low to erode deposited sediment. This

3 EIS Appendices (3).pdf:148:sediment is disturbed some other way (dredging, shipping). Suspended sediments concentrations

3 EIS Appendices (3).pdf:149:from EA. The plot shows that the areas to be dredged, excluding the Dry/Wet dock, namely

3 EIS Appendices (3).pdf:149:when considering the dredging areas. The grain size data which this is based on gives no

3 EIS Appendices (3).pdf:150:Figure 5-4 Percent silt/clay in the dredging areas and Seal Sands

3 EIS Appendices (3).pdf:151:no dredg/closed dredged dredged Cycle

3 EIS Appendices (3).pdf:151:1 Dredg of dock (incl bund & HB) Dredged No No 14 days

3 EIS Appendices (3).pdf:151:2 Dredg of dock and Seaton Channel Dredged Yes No 14 days

3 EIS Appendices (3).pdf:151:3 Dredg of dock and Q10 and Q11 Dredged No Yes 14 days

3 EIS Appendices (3).pdf:151:4 Dredg dock, SC and Q10 & 11 Dredged Yes Yes 14 days

3 EIS Appendices (3).pdf:151:5 Dock closed (bund + HB dredg) Closed No No 14 days

3 EIS Appendices (3).pdf:151:6 Dock closed dredg Seaton Channel Closed Yes No 14 days

3 EIS Appendices (3).pdf:151:7 Dock closed dredg Q10 & Q11 Closed No Yes 14 days

3 EIS Appendices (3).pdf:151:8 D.Close, dredg SC, Q10 & Q11 (-12 m) Closed Yes Yes 14 days

3 EIS Appendices (3).pdf:151:9 D.Close, dredg SC, Q10 & Q11 (-12.5 m) Closed Yes Yes 14 days

3 EIS Appendices (3).pdf:153:because after dredging the tidal volume can pass trough a greater river cross section.

3 EIS Appendices (3).pdf:153:will be exposed after the dredging and which may alter the flow. There were no data available

3 EIS Appendices (3).pdf:153:for the sediment type at the planned dredging depth so the calculations have been based on data

3 EIS Appendices (3).pdf:155:are related to scenario 6 (when the dock is closed and Seaton Channel is dredged) and 8 (Dock

3 EIS Appendices (3).pdf:155:closed, Seaton channel and quays 10 and 11 dredged). The least changes in velocities can be

3 EIS Appendices (3).pdf:155:seen for scenario 1 (Dock and Holding basin dredged) and 3(Dock and Quays 10 & 11 dredged).

3 EIS Appendices (3).pdf:159:the bounds of Seaton Channel (location 1, 2 and 3). This is in the dredging areas and is also the

3 EIS Appendices (3).pdf:159:scenario 6 (when the dock is closed and Seaton Channel is dredged) and 8 (Dock closed, Seaton

3 EIS Appendices (3).pdf:159:channel and quays 10 and 11 dredged). The least changes in velocities can be seen for scenario 1

3 EIS Appendices (3).pdf:159:(Dock and Holding basin dredged) and 3( Dock and Quays 10 & 11 dredged). It is important to

3 EIS Appendices (3).pdf:159:underline that estimated shear stress after dredging is somewhat artificial, because the bed is

3 EIS Appendices (3).pdf:159:assumed to be completely flat reflecting the proposed dredging depth.

3 EIS Appendices (3).pdf:165:water flow and sediment suspension such as storms, waves, traffic and dredging will produce a

3 EIS Appendices (3).pdf:165:Throughout the various scenarios, changes are made in the geometry to reflect the dredging and

3 EIS Appendices (3).pdf:165:closing of the dry dock, dredging of the holding basin, various quays, and Seaton Channel. It is

3 EIS Appendices (3).pdf:168:offshore structures. Throughout the late 1960’s and 70’s Seaton Channel was dredged several

3 EIS Appendices (3).pdf:168:times in order to float out offshore structures, and maintenance dredging has been carried out

3 EIS Appendices (3).pdf:168:Seaton Channel has been dredged routinely, with some additional dredging for the float-out of

3 EIS Appendices (3).pdf:168:present dredged to some degree.

3 EIS Appendices (3).pdf:168:In 1990-91, Halcrow and HR Wallingford undertook a strategic review of dredging and siltation,

3 EIS Appendices (3).pdf:168:showing that the estuary was dredged more than necessary for navigation, resulting in the estuary

3 EIS Appendices (3).pdf:168:the upstream migration of finer particles “after disturbance by storms, shipping and dredging”.

3 EIS Appendices (3).pdf:168:Barrage, possible reasons may be changes in weather patterns, decreased dredging rates or a

3 EIS Appendices (3).pdf:169:the dredged area, restricting ship movements.

3 EIS Appendices (3).pdf:169:In fact the dredging quantities reported for “Chart 9” (see Figure 3-8 above) have doubled lately,

3 EIS Appendices (3).pdf:169:calculation is, however, based upon dredged quantities, and may simply be a product of

3 EIS Appendices (3).pdf:169:privatisation of the Porch Authority and an efficiency improvement of dredging, so that cost

3 EIS Appendices (3).pdf:169:savings on dredging operations have resulted in a reported drop in deposition rates. If indeed

3 EIS Appendices (3).pdf:169:dredging has fallen below deposition rates, the bed levels are rising and the Tees estuary is

3 EIS Appendices (3).pdf:169:silting up. It is reportedly the view of dredging staff that dredging rates are too low to sustain

3 EIS Appendices (3).pdf:169:(post-barrage) being in excess of the 1 Mm3/y dredged, it is clear that the estuary is silting up.

3 EIS Appendices (3).pdf:169: undercurrent) and re-suspension by dredging and shipping activities

3 EIS Appendices (3).pdf:169: - The trend of sand accretion at Seal Sands may be stemmed by dredging of Seaton

3 EIS Appendices (3).pdf:170:shows a trend towards finer sediments, possibly from dredging operations. This is somewhat in

3 EIS Appendices (3).pdf:170:also mentions that theoretically, the impacts of the barrage, changes in maintenance dredging etc.

3 EIS Appendices (3).pdf:171:PD Teesport /6/ provided access to the most recent dredging control charts for a detailed

3 EIS Appendices (3).pdf:171:bathymetry of the dredged areas. The bathymetry was supplemented by the EA bathymetry data

3 EIS Appendices (3).pdf:172:7 MODELLING OF DREDGING OPERATIONS - SSFATE

3 EIS Appendices (3).pdf:172:For the backhoe dredging, four separate locations of the dredging were assumed. Location 1 was

3 EIS Appendices (3).pdf:172:set to be in the back end of the dredging area labelled 1 in Figure 3-1. Location 2 was taken near

3 EIS Appendices (3).pdf:172:representative of dredging using a backhoe. The hopper dredge operates along the dredging line

3 EIS Appendices (3).pdf:172:shown in Figure 4-9. With the four locations for the backhoe dredging and the hopper line

3 EIS Appendices (3).pdf:172:location, 5 dredging operations were simulated. With each simulation being conducted during

3 EIS Appendices (3).pdf:172:one moves away from the dredging source, the plume is composed of only fine silt and clay

3 EIS Appendices (3).pdf:172:particles, with the coarser material being deposited near the dredging site. Pictures of the bottom

3 EIS Appendices (3).pdf:172:7.1 Backhoe Dredge Results

3 EIS Appendices (3).pdf:172:Figure 7-1 shows the maximum sediment concentrations in the plume resulting from dredging at

3 EIS Appendices (3).pdf:172:the dredge. Figure 7-2 shows the bottom deposition of the released sediments as a mass per unit

3 EIS Appendices (3).pdf:172:the spring tide plume is also greater than 1000 mg/l very near the dredge. Bottom deposition is

3 EIS Appendices (3).pdf:173:Figure 7-2 Bottom deposition (g/m2 after 2 days of dredging) for backhoe at location 1 in

3 EIS Appendices (3).pdf:174:Figure 7-4 Bottom deposition (g/m2 after 2 days of dredging) for backhoe at location 1 in

3 EIS Appendices (3).pdf:174:As the dredging proceeds toward the middle of Area #1, Figure 7-5 shows that for a neap tide the

3 EIS Appendices (3).pdf:174:concentrations near the dredge in excess of 1000 mg/l. Figure 7-6 illustrates the bottom

3 EIS Appendices (3).pdf:174:deposition. For dredging during a spring tide, Figure 7-7 displays the suspended sediment plume

3 EIS Appendices (3).pdf:174:#1. Maximum concentrations near the dredge are still higher than 1000 mg/l, with the extent of

3 EIS Appendices (3).pdf:175:Figure 7-5 Backhoe dredging, Location #2, neap tide, max sediment concentrations mg/l.

3 EIS Appendices (3).pdf:175:Figure 7-6 Backhoe dredging, Location #2, neap tide, sediment deposition g/m2 after 2 days

3 EIS Appendices (3).pdf:175:of dredging.

3 EIS Appendices (3).pdf:175:Figure 7-7 Backhoe dredging, Location #2, spring tide, max sediment concentrations mg/l.

3 EIS Appendices (3).pdf:176:Figure 7-8 Backhoe dredging, Location #2, spring tide, sediment deposition g/m2 after 2

3 EIS Appendices (3).pdf:176:days of dredging.

3 EIS Appendices (3).pdf:176:For dredging in Area #2, both the neap and spring tide simulations generate significant plumes,

3 EIS Appendices (3).pdf:176:dredge are again in excess of 1000 mg/l for both plumes. Again, due to much larger currents, the

3 EIS Appendices (3).pdf:176:Figure 7-9 Backhoe dredging, Area 2, neap tide, max sediment concentrations mg/l

3 EIS Appendices (3).pdf:177:Figure 7-10 Backhoe dredging, Area 2, neap tide, sediment deposition g/m2 after 2 days of

3 EIS Appendices (3).pdf:177:dredging.

3 EIS Appendices (3).pdf:177:Figure 7-11 Backhoe dredging, Area 2, spring tide, max sediment concentrations mg/l.

3 EIS Appendices (3).pdf:178:Figure 7-12 Backhoe dredging, Area 2, spring tide, sediment deposition g/m2 after 2 days

3 EIS Appendices (3).pdf:178:of dredging.

3 EIS Appendices (3).pdf:178:Results from dredging with a backhoe in Area #3 are shown in Figure 7-13 to Figure 7-16.

3 EIS Appendices (3).pdf:178:Figure 7-13 Backhoe dredging, Area 3, neap tide, max sediment concentrations mg/l.

3 EIS Appendices (3).pdf:179:Figure 7-14 Backhoe dredging, Area 3, neap tide, sediment deposition g/m2 after 2 days of

3 EIS Appendices (3).pdf:179:dredging.

3 EIS Appendices (3).pdf:179:Figure 7-15 Backhoe dredging, Area 3, spring tide, max sediment concentrations mg/l.

3 EIS Appendices (3).pdf:180:Figure 7-16 Backhoe dredging, Area 3, spring tide, sediment deposition g/m2 after 2 days

3 EIS Appendices (3).pdf:180:of dredging.

3 EIS Appendices (3).pdf:180:7.2 Hopper Dredge Results

3 EIS Appendices (3).pdf:180:generated from the hopper dredging during a neap and spring tide, respectively. As for the

3 EIS Appendices (3).pdf:180:backhoe dredge, the plume created during spring tide dredging is much larger than that created

3 EIS Appendices (3).pdf:180:dredging line. The spring tide suspended sediment plume extents all the way to the boundary of

3 EIS Appendices (3).pdf:180:Figure 7-17 Hopper dredging, neap tide, max sediment concentrations mg/l

3 EIS Appendices (3).pdf:181:Figure 7-18 Hopper dredging, neap tide, sediment deposition g/m2 after 2 days of dredging.

3 EIS Appendices (3).pdf:181:Figure 7-19 Hopper dredging, spring tide, max sediment concentrations mg/l

3 EIS Appendices (3).pdf:182:Figure 7-20 Hopper dredging, spring tide, sediment deposition g/m2 after 2 days of

3 EIS Appendices (3).pdf:182:dredging.

3 EIS Appendices (3).pdf:182:7.3 Backhoe and hopper dredges operating simultaneously

3 EIS Appendices (3).pdf:182:dredge and the backhoe dredge are both operating at the same time. It can be seen that little

3 EIS Appendices (3).pdf:182:Areas #2 and #3 are being dredged while the Seaton Channel is being dredged, but the

3 EIS Appendices (3).pdf:182:plume generated from only one dredge operating at a time.

3 EIS Appendices (3).pdf:183:and backhoe in dredging area 1 to 4 on neap (N) and spring (S) tides

3 EIS Appendices (3).pdf:187:The level of contamination in the dredging areas and at Seals Sand has been mapped and

3 EIS Appendices (3).pdf:187:metals (Ar, Cd, Cr, Cu, hg, Ni, Pb and Zn), PCBs, PAHs and TBT in dredging area 1 to 4 (see

3 EIS Appendices (3).pdf:190:See Section 3.2 above regarding maintenance dredging of Seaton Channel including the holding

3 EIS Appendices (3).pdf:190:be dredged annually from Seaton Channel and the holding basin. The dry dock, when open,

3 EIS Appendices (3).pdf:190:requires dredging of a further 12,500 m3.

3 EIS Appendices (3).pdf:190:Seaton Channel is proposed dredged to -8.5 m LAT, such that a vessel with draft

3 EIS Appendices (3).pdf:190:The Holding Basin is proposed dredged to -9.5 m, such that a vessel with draft

3 EIS Appendices (3).pdf:190:Quay 10 and 11 are proposed to be dredged to -12 m LAT, such that a vessel with draft

3 EIS Appendices (3).pdf:190:The dry dock is proposed dredged to -6.65 m LAT, so that a vessel with draft

3 EIS Appendices (3).pdf:192: Waves Dredging

3 EIS Appendices (3).pdf:193:sedimentation patterns, traffic and dredging. Dredging operations, as modelled in Section 7

3 EIS Appendices (3).pdf:193:condition, may extend considerable distances. Indeed, dredging of the Tees estuary is a

3 EIS Appendices (3).pdf:194:10.2 Dredging

3 EIS Appendices (3).pdf:194:be generated by the two dredging operations; namely, a backhoe and a hopper dredge. Maximum

3 EIS Appendices (3).pdf:194:total suspended sediment concentrations can exceed 1000 mg/l for the backhoe dredge, but are

3 EIS Appendices (3).pdf:194:less for the hopper dredge. In all cases, the concentrations drop off quickly away from the

3 EIS Appendices (3).pdf:194:dredge.

3 EIS Appendices (3).pdf:194:The size of the sediment plumes are significantly larger when dredging during a spring tide

3 EIS Appendices (3).pdf:194:versus dredging during a neap tide. The size of the plumes generated by the hopper dredge can

3 EIS Appendices (3).pdf:194:For the case of both dredges operating simultaneously, there will be little interaction of the

3 EIS Appendices (3).pdf:194:interaction will occur when dredging Areas #2 and #3 with a backhoe with the hopper dredge

3 EIS Appendices (3).pdf:194:Some of the released sediments for both the backhoe and the hopper dredge are transported into

3 EIS Appendices (3).pdf:194:tide, suspended sediments can be transported out to the sea as a result of the hopper dredge

3 EIS Appendices (3).pdf:194:and dredging contribute to the sediment load in the water column and thereby the annual

3 EIS Appendices (3).pdf:194:water column from the proposed dredging operations these are by far dominating compared to

3 EIS Appendices (3).pdf:195:contributing to the increased sediment loads over the largest areas. Dredging is taking place

3 EIS Appendices (3).pdf:195:almost continuously in the Tees estuary due to i.e. maintenance dredging. As a result of this it is

3 EIS Appendices (3).pdf:195:10.3.2 Impact of dredging operations

3 EIS Appendices (3).pdf:195:within the bounds of Seaton Channel. The dredging operations are modelled to yield sediment

3 EIS Appendices (3).pdf:195:Channel will be dominated by the dredging operations as long as these are undertaken.

3 EIS Appendices (3).pdf:195:The backhoe dredging operations generally affect Seaton Channel, both the inner and outer parts,

3 EIS Appendices (3).pdf:195:The hopper dredge operation will affect both inner and outer parts of Seaton channel, the whole

3 EIS Appendices (3).pdf:195:over 100 mg/l and up to 1000 mg/l. On Seal Sands the dredging operations are modelled to yield

3 EIS Appendices (3).pdf:195:are modelled to be in the range of 10-50 mg/l. For the case of both dredges operating

3 EIS Appendices (3).pdf:195:backhoe is operating in dredging Area 1. However, some interaction will occur when dredging

3 EIS Appendices (3).pdf:195:areas 2 and 3 with a backhoe with the hopper dredge operating at the same time. But the

3 EIS Appendices (3).pdf:195:plume generated from only one dredge operating at a time.

3 EIS Appendices (3).pdf:196:concentrations of sediments in the water column during the dredging operations may cause

3 EIS Appendices (3).pdf:196:Dredging area 4 and 5 with the hopper dredge will lead to a significant increase in sediment load

3 EIS Appendices (3).pdf:196:per day (see Figure 7-18 and Figure 7-20). After 12 weeks of dredging this is equivalent to 420-

3 EIS Appendices (3).pdf:196:sediments on Seal sands, possibly from dredging operations. Dredging operations in general

3 EIS Appendices (3).pdf:196:always have an impact on the benthic fauna. The fauna in the dredging areas are removed and

3 EIS Appendices (3).pdf:196:the fauna in areas of high sedimentation due to the dredging operations are disturbed,

3 EIS Appendices (3).pdf:196:good knowledge of the existing fauna. As dredging operations have been going on in the area for

3 EIS Appendices (3).pdf:196:dredging area 1 to 4 has been mapped and compared against international recognised risk limits

3 EIS Appendices (3).pdf:196:all dredging areas (bulk samples), generally from the surface down to 1 m sediment depth. Five

3 EIS Appendices (3).pdf:197:Benzo(a)pyrene in the bulk samples is due to a generally high level in all dredging areas or if

3 EIS Appendices (3).pdf:197:generally high in Seaton Channel and Seal Sands sediments. The dredging operations will

3 EIS Appendices (3).pdf:198:/6/ PD Teesport Conservancy Division, Dredging control charts, sounded throughout

3 EIS Appendices (3).pdf:198:/15/ Land, J. (Personal communication 2004). Dredging Research Limited. Surrey, United

3 EIS Appendices (3).pdf:198: of sediment resuspension characteristics of selected dredges,” Technical Report HL-89-

3 EIS Appendices (3).pdf:210:Concentration of CB#105 (µg/kg dry weight) in dredging areas 1 to 4. Sediment quality

3 EIS Appendices (3).pdf:210:Concentration of CB#118 (µg/kg dry weight) in dredging areas 1 to 4. Sediment quality

3 EIS Appendices (3).pdf:211:Concentration of CB#153 (µg/kg dry weight) in dredging areas 1 to 4. Sediment quality

3 EIS Appendices (3).pdf:211:Concentration of CB#156 (µg/kg dry weight) in dredging areas 1 to 4. Sediment quality

3 EIS Appendices (3).pdf:212:in dredging areas 1 to 4. Sediment quality thresholds for the mixture of planar congeners

3 EIS Appendices (3).pdf:214:Concentration of TBT (mg/kg dry weight) in dredging areas 1 to 4. Sediment quality

3 EIS Appendices (3).pdf:214: Location in dredging area 4; Seaton Channel. Sediment

3 EIS Appendices (3).pdf:216:Concentration of Acenaphene (mg/kg dry weight) in dredging areas 1 to 4. Sediment

3 EIS Appendices (3).pdf:216:Concentration of Acenaphthylene (mg/kg dry weight) in dredging areas 1 to 4. Sediment

3 EIS Appendices (3).pdf:217:Concentration of Anthracene (mg/kg dry weight) in dredging areas 1 to 4. Sediment

3 EIS Appendices (3).pdf:217:Concentration of Benzo(a)anthracene (mg/kg dry weight) in dredging areas 1 to 4.

3 EIS Appendices (3).pdf:218:Concentration of Benzo(a)pyrene (mg/kg dry weight) in dredging areas 1 to 4. Sediment

3 EIS Appendices (3).pdf:218:Concentration of Chrysene (mg/kg dry weight) in dredging areas 1 to 4. Sediment quality

3 EIS Appendices (3).pdf:219:Concentration of Dibenz(a,h)anthracene (mg/kg dry weight) in dredging areas 1 to 4.

3 EIS Appendices (3).pdf:219:Concentration of Fluoranthene (mg/kg dry weight) in dredging areas 1 to 4. Sediment

3 EIS Appendices (3).pdf:220:Concentration of Fluorene (mg/kg dry weight) in dredging areas 1 to 4. Sediment quality

3 EIS Appendices (3).pdf:220:Concentration of Naphthalene (mg/kg dry weight) in dredging areas 1 to 4. Sediment

3 EIS Appendices (3).pdf:221:Concentration of Phenanthrene (mg/kg dry weight) in dredging areas 1 to 4. Sediment

3 EIS Appendices (3).pdf:221:Concentration of Pyrene (mg/kg dry weight) in dredging areas 1 to 4. Sediment quality

3 EIS Appendices (3).pdf:223:1 Dredging of dock and holding basin 0.047 0.89 sand 0.32 sand 100% sand

3 EIS Appendices (3).pdf:223:2 Dredg dock and Seaton Channel 0.049 0.85 sand 0.30 sand 97% sand

3 EIS Appendices (3).pdf:223:3 Dredg doc, and Q10/Q11 0.046 0.90 sand 0.32 sand 101% sand

3 EIS Appendices (3).pdf:223:4 Dredg dock, SC and Q10/Q11 0.043 0.85 sand 0.31 sand 98% sand

3 EIS Appendices (3).pdf:223:6 Dock cl, dredged Seaton Channel 0.044 0.86 sand 0.31 sand 98% sand

3 EIS Appendices (3).pdf:223:7 Dock cl, dredged Q10/Q11 0.043 0.86 sand 0.31 sand 99% sand

3 EIS Appendices (3).pdf:223:8 Dock cl, dredged SC and Q10/Q11 0.040 0.82 sand 0.30 sand 95% sand

3 EIS Appendices (3).pdf:223:9 Dock cl, dredged SC and Q10/Q11 extended 0.050 0.84 sand 0.31 sand 96 % sand

3 EIS Appendices (3).pdf:223:1 Dredging of dock and holding basin 0.095 0.71 sand 0.25 sand 101% sand

3 EIS Appendices (3).pdf:223:2 Dredg dock and Seaton Channel 0.091 0.68 sand 0.24 sand 97% sand

3 EIS Appendices (3).pdf:223:3 Dredg doc, and Q10/Q11 0.094 0.72 sand 0.25 sand 101% sand

3 EIS Appendices (3).pdf:223:4 Dredg dock, SC and Q10/Q11 0.091 0.69 sand 0.24 sand 98% sand

3 EIS Appendices (3).pdf:223:6 Dock cl, dredged Seaton Channel 0.092 0.69 sand 0.24 sand 98% sand

3 EIS Appendices (3).pdf:223:7 Dock cl, dredged Q10/Q11 0.092 0.70 sand 0.25 sand 99% sand

3 EIS Appendices (3).pdf:223:8 Dock cl, dredged SC and Q10/Q11 0.089 0.67 sand 0.24 sand 96% sand

3 EIS Appendices (3).pdf:223:9 Dock cl, dredged SC and Q10/Q11 extended 0.090 0.68 sand 0.24 sand 96 % sand

3 EIS Appendices (3).pdf:224:1 Dredging of dock and holding basin 0.470 2.12 sand 0.71 sand 100% sand

3 EIS Appendices (3).pdf:224:2 Dredg dock and Seaton Channel 0.402 2.07 sand 0.70 sand 96% sand

3 EIS Appendices (3).pdf:224:3 Dredg doc, and Q10/Q11 0.470 2.12 sand 0.71 sand 100% sand

3 EIS Appendices (3).pdf:224:4 Dredg dock, SC and Q10/Q11 0.402 2.07 sand 0.70 sand 96% sand

3 EIS Appendices (3).pdf:224:6 Dock cl, dredged Seaton Channel 0.402 2.07 sand 0.71 sand 98% sand

3 EIS Appendices (3).pdf:224:7 Dock cl, dredged Q10/Q11 0.449 2.07 sand 0.70 sand 98% sand

3 EIS Appendices (3).pdf:224:8 Dock cl, dredged SC and Q10/Q11 0.383 2.02 sand 0.69 sand 98% sand

3 EIS Appendices (3).pdf:224:9 Dock cl, dredged SC and Q10/Q11 extended 0.390 2.05 sand 0.70 sand 96% sand

3 EIS Appendices (3).pdf:224:1 Dredging of dock and holding basin 0.552 4.93 sand 1.96 sand 100% sand

3 EIS Appendices (3).pdf:224:2 Dredg dock and Seaton Channel 0.552 4.93 sand 1.96 sand 98% sand

3 EIS Appendices (3).pdf:224:3 Dredg doc, and Q10/Q11 0.552 4.93 sand 1.96 sand 100% sand

3 EIS Appendices (3).pdf:224:4 Dredg dock, SC and Q10/Q11 0.552 4.92 sand 1.96 sand 100% sand

3 EIS Appendices (3).pdf:224:6 Dock cl, dredged Seaton Channel 0.545 4.89 sand 1.96 sand 98% sand

3 EIS Appendices (3).pdf:224:7 Dock cl, dredged Q10/Q11 0.545 4.89 sand 1.95 sand 99% sand

3 EIS Appendices (3).pdf:225:8 Dock cl, dredged SC and Q10/Q11 0.545 4.88 sand 1.95 sand 99% sand

3 EIS Appendices (3).pdf:225:9 Dock cl, dredged SC and Q10/Q11 extended 0.545 4.88 sand 1.95 sand 99% sand

3 EIS Appendices (3).pdf:225:1 Dredging of dock and holding basin 0.074 6.48 sand 3.28 sand 100% sand

3 EIS Appendices (3).pdf:225:2 Dredg dock and Seaton Channel 0.074 6.48 sand 3.28 sand 100% sand

3 EIS Appendices (3).pdf:225:3 Dredg doc, and Q10/Q11 0.074 6.48 sand 3.28 sand 100% sand

3 EIS Appendices (3).pdf:225:4 Dredg dock, SC and Q10/Q11 0.074 6.48 sand 3.28 sand 100% sand

3 EIS Appendices (3).pdf:225:6 Dock cl, dredged Seaton Channel 0.073 6.48 sand 3.28 sand 100% sand

3 EIS Appendices (3).pdf:225:7 Dock cl, dredged Q10/Q11 0.073 6.45 sand 3.28 sand 100% sand

3 EIS Appendices (3).pdf:225:8 Dock cl, dredged SC and Q10/Q11 0.073 6.45 sand 3.27 sand 100% sand

3 EIS Appendices (3).pdf:225:9 Dock cl, dredged SC and Q10/Q11 extended 0.545 6.45 sand 3.27 sand 100% sand

3 EIS Appendices (3).pdf:225:1 Dredging of dock and holding basin 0.028 9.80 sand 7.70 sand 100% sand

3 EIS Appendices (3).pdf:225:2 Dredg dock and Seaton Channel 0.028 9.80 sand 7.70 sand 100% sand

3 EIS Appendices (3).pdf:225:3 Dredg doc, and Q10/Q11 0.028 9.80 sand 7.70 sand 100% sand

3 EIS Appendices (3).pdf:225:4 Dredg dock, SC and Q10/Q11 0.028 9.80 sand 7.70 sand 100% sand

3 EIS Appendices (3).pdf:226:6 Dock cl, dredged Seaton Channel 0.028 9.79 sand 7.70 sand 100% sand

3 EIS Appendices (3).pdf:226:7 Dock cl, dredged Q10/Q11 0.028 9.79 sand 7.70 sand 100% sand

3 EIS Appendices (3).pdf:226:8 Dock cl, dredged SC and Q10/Q11 0.028 9.79 sand 7.70 sand 100% sand

3 EIS Appendices (3).pdf:226:9 Dock cl, dredged SC and Q10/Q11 extended 0.545 9.79 sand 7.70 sand 100% sand

3 EIS Appendices (3).pdf:226:1 Dredging of dock and holding basin 0.206 0.40 sand 0.17 sand 100% sand

3 EIS Appendices (3).pdf:226:2 Dredg dock and Seaton Channel 0.206 0.40 sand 0.17 sand 100% sand

3 EIS Appendices (3).pdf:226:3 Dredg doc, and Q10/Q11 0.206 0.40 sand 0.17 sand 99% sand

3 EIS Appendices (3).pdf:226:4 Dredg dock, SC and Q10/Q11 0.206 0.40 sand 0.17 sand 99% sand

3 EIS Appendices (3).pdf:226:6 Dock cl, dredged Seaton Channel 0.206 0.40 sand 0.17 sand 99% sand

3 EIS Appendices (3).pdf:226:7 Dock cl, dredged Q10/Q11 0.206 0.39 sand 0.17 sand 98% sand

3 EIS Appendices (3).pdf:226:8 Dock cl, dredged SC and Q10/Q11 0.206 0.39 sand 0.17 sand 98% sand

3 EIS Appendices (3).pdf:226:9 Dock cl, dredged SC and Q10/Q11 extended 0.206 0.40 sand 0.17 sand 99% sand

3 EIS Appendices (3).pdf:295: metres or a working cutter-suction transfer dredge at 100 metres for 1 month during

3 EIS Appendices (3).pdf:295:• dredging tends to be up to 180 dB re 1 µPa-m and below 1kHz;

3 EIS Appendices (3).pdf:295: transfer dredge at 100 metres approximates to 130 dB re 1 µPa (for broad spectrum

3 EIS Appendices (3).pdf:296: Noise duration varies with activity, ranging from several weeks (dredging) to a fraction

3 EIS Appendices (3).pdf:296: result from a variety of activities e.g. continuous daytime boat activity, dredging,

ASC-001-00007 A Dredge Volumes 2015.pdf:1: SEATON CHANNEL DREDGE VOLUMES

ASC-001-00007 A Dredge Volumes 2015.pdf:1: HOLDING BASIN DREDGE VOLUMES

ASC-001-00007 A Dredge Volumes 2015.pdf:1: Dredge Volumes 2015

ASC-001-00009 A Dredge Locations 2016.pdf:1: Dredge Locations 2016

Appendix 16.1b - DNV Addendum Report 2005.pdf:3:3.3 Water column sediment concentrations, dredging 7

Appendix 16.1b - DNV Addendum Report 2005.pdf:3:4 IMPACT OF DREDGING OPERATIONS ON SEAL SANDS…………………………… 9

Appendix 16.1b - DNV Addendum Report 2005.pdf:3:10 CURRENT DREDGING PRACTICES IN THE TEES ESTUARY……………………. 17

Appendix 16.1b - DNV Addendum Report 2005.pdf:4:“Environmental assessment of dredging operations, changes in hydrodynamics and sediment

Appendix 16.1b - DNV Addendum Report 2005.pdf:5: Tides Storms Dredging

Appendix 16.1b - DNV Addendum Report 2005.pdf:6:dredged to -9.5 in all of them except for the Baseline scenario where the bathymetry recorded in

Appendix 16.1b - DNV Addendum Report 2005.pdf:6:Seaton Channel was dredged to -8.5 in scenarios 2, 4, 6, 8 and 9, and today’s bathymetry was

Appendix 16.1b - DNV Addendum Report 2005.pdf:6:combinations of the dock open or closed, with Quays 10 and 11 dredged and with Seaton

Appendix 16.1b - DNV Addendum Report 2005.pdf:6:Channel dredged. In this way any specific effects stemming from each option could be identified

Appendix 16.1b - DNV Addendum Report 2005.pdf:8:dredging…”. We believe that the Channel is not subject to any maintenance dredging at present.

Appendix 16.1b - DNV Addendum Report 2005.pdf:8:and dredging were added in the discussion in Chapter 10. This created a comprehensive

Appendix 16.1b - DNV Addendum Report 2005.pdf:9:part of the channel as it is today. The corresponding calculations for the new dredged depths of

Appendix 16.1b - DNV Addendum Report 2005.pdf:9:3.3 Water column sediment concentrations, dredging

Appendix 16.1b - DNV Addendum Report 2005.pdf:9:The capital and maintenance dredging operations may produce localised and temporarily

Appendix 16.1b - DNV Addendum Report 2005.pdf:10:more mobile than coarse sediments, which are deposited nearer the dredging site. Please refer to

Appendix 16.1b - DNV Addendum Report 2005.pdf:10:The dredging modelling shows that backhoe dredging at the base of the proposed bund (DNV

Appendix 16.1b - DNV Addendum Report 2005.pdf:10:by 10-20 mg/l at spring tides. Backhoe dredging at Quays 10 & 11 may increase concentrations

Appendix 16.1b - DNV Addendum Report 2005.pdf:10:at the intake by 10-20 mg/l at neap tides, but up to 100-250 mg/l at spring tides. Dredging of

Appendix 16.1b - DNV Addendum Report 2005.pdf:10:Seaton Channel by the use of hopper dredges creates concentrations of 10-20 mg/l at neap tides,

Appendix 16.1b - DNV Addendum Report 2005.pdf:10:and 10-50 mg/l at spring tides. The simultaneous operation of backhoe and hopper dredges,

Appendix 16.1b - DNV Addendum Report 2005.pdf:10:The dredging operations are therefore expected to increase local sediment concentrations

Appendix 16.1b - DNV Addendum Report 2005.pdf:10:appreciably in some cases. The critical dredging operations include dredging of Quays 10 and 11

Appendix 16.1b - DNV Addendum Report 2005.pdf:10:at spring tides. It is therefore proposed that during spring tides the dredging of Quay 10 & 11 is

Appendix 16.1b - DNV Addendum Report 2005.pdf:11:4 IMPACT OF DREDGING OPERATIONS ON SEAL SANDS

Appendix 16.1b - DNV Addendum Report 2005.pdf:11:dredging with a backhoe and hopper dredge in different dredging areas.

Appendix 16.1b - DNV Addendum Report 2005.pdf:11:The hopper dredge will generate by far the largest suspended sediment concentration and

Appendix 16.1b - DNV Addendum Report 2005.pdf:11:The hopper dredge will be used when dredging the Seaton Channel. The two figures below show

Appendix 16.1b - DNV Addendum Report 2005.pdf:11:the max suspended sediment concentration and deposition when using a hopper dredge after two

Appendix 16.1b - DNV Addendum Report 2005.pdf:11:days of dredging. The hopper dredge operates along the dredging line (red line) shown in the

Appendix 16.1b - DNV Addendum Report 2005.pdf:11:figures below. After two days of dredging equilibrium is reached meaning that you can just

Appendix 16.1b - DNV Addendum Report 2005.pdf:11:multiply with the actual duration of the dredging operation.

Appendix 16.1b - DNV Addendum Report 2005.pdf:11:Figure 4-1 – Hopper dredging, spring tide, max sediment concentrations mg/l

Appendix 16.1b - DNV Addendum Report 2005.pdf:12:Figure 4-2 – Hopper dredging, spring tide, sediment deposition g/m2 after 2 days of

Appendix 16.1b - DNV Addendum Report 2005.pdf:12:dredging.

Appendix 16.1b - DNV Addendum Report 2005.pdf:12:of dredging this is equivalent to 420-4200 g/m2. The input to the model was that 70 % of the

Appendix 16.1b - DNV Addendum Report 2005.pdf:12:Transportation Ltd. estimates that bulk density of the material to be dredged in Seaton Channel is

Appendix 16.1b - DNV Addendum Report 2005.pdf:12:The deposited layer of dredging material will be about 0.3 cm after 12 weeks which amounts to

Appendix 16.1b - DNV Addendum Report 2005.pdf:12:data available of the organic content in the sediment to be dredged this is an open question. An

Appendix 16.1b - DNV Addendum Report 2005.pdf:13:dredging operations have been going on for years so it may be a logical conclusion that

Appendix 16.1b - DNV Addendum Report 2005.pdf:13:dredged material can not directly be compared to previous material dredged.

Appendix 16.1b - DNV Addendum Report 2005.pdf:13:dredging”. How much of this 30ha area is intertidal and how much subtidal? The spatial extent

Appendix 16.1b - DNV Addendum Report 2005.pdf:13:margins along the banks of Seaton Channel caused by the new dredged profiles must be similarly

Appendix 16.1b - DNV Addendum Report 2005.pdf:13:This section is confusing. If Seaton Channel runs east-west then why should dredging affect “the

Appendix 16.1b - DNV Addendum Report 2005.pdf:13:west side of the channel”? We need to know the spatial extent of the dredged area and this must

Appendix 16.1b - DNV Addendum Report 2005.pdf:13:include the areas of any stability slopes required. Figure 4-1 does not refer to dredging but to the

Appendix 16.1b - DNV Addendum Report 2005.pdf:13:dredged footprint and the spatial extent of any stability slopes towards the southern side of

Appendix 16.1b - DNV Addendum Report 2005.pdf:13:Erosion, dredging or any loss to the northern margin of Seal Sands SPA is unacceptable.

Appendix 16.1b - DNV Addendum Report 2005.pdf:13:What about the loss of intertidal SSSI adjacent to Quays 9,10 and 11 due to dredging?

Appendix 16.1b - DNV Addendum Report 2005.pdf:14:removed during dredging”, but once again the extent and location of the loss remains

Appendix 16.1b - DNV Addendum Report 2005.pdf:14:DNV has produced a number of versions of areas affected by dredging activities in Seaton

Appendix 16.1b - DNV Addendum Report 2005.pdf:14:Scientific Interest (SSSI) could be accepted, implying that some dredging at the northern shore

Appendix 16.1b - DNV Addendum Report 2005.pdf:14:Lately DNV has been given access to dredging plans produced by Posford Duvivier /6/. These

Appendix 16.1b - DNV Addendum Report 2005.pdf:14:The area defined as affected by the dredging amounts to 17900 m2, made up of 5600 m2 at Quay

Appendix 16.1b - DNV Addendum Report 2005.pdf:15:significant depth of the Seaton Channel dredge the material comprising the river bed after the

Appendix 16.1b - DNV Addendum Report 2005.pdf:15:dredge may be very different to the material present now ie. fine muds versus keuper marl.

Appendix 16.1b - DNV Addendum Report 2005.pdf:15:Maintenance dredging will then ensure that this remains the case and therefore the substrate may

Appendix 16.1b - DNV Addendum Report 2005.pdf:16:limited to the dredged areas, and that other biotope areas that are not dredged are unaffected.

Appendix 16.1b - DNV Addendum Report 2005.pdf:16:high productivity in estuarine systems. Also, proposed capital dredge is much larger than

Appendix 16.1b - DNV Addendum Report 2005.pdf:16:maintenance dredges. It is my understanding that maintenance work is not that common in

Appendix 16.1b - DNV Addendum Report 2005.pdf:16:Dredging may impact prey species, ref. DNV Report 2004-1687 Appendix 16.1 Chapter 10.3.2.

Appendix 16.1b - DNV Addendum Report 2005.pdf:16:Section 16.3.35 states that dredging activities are common in the estuary as a whole at present,

Appendix 16.1b - DNV Addendum Report 2005.pdf:16:Turning Circle and the immediate area is dredged with a yield of 106,000 m3/year from 1991-

Appendix 16.1b - DNV Addendum Report 2005.pdf:16:Teesport’s dredging maps dated 2004 /8/ and current navigation charts /9/, Seaton Channel is

Appendix 16.1b - DNV Addendum Report 2005.pdf:16:currently dredged to a navigable depth.

Appendix 16.1b - DNV Addendum Report 2005.pdf:16:The basic study of dredging operations carried out by CHT and reproduced in the DNV Report

Appendix 16.1b - DNV Addendum Report 2005.pdf:16:shows the spreading and accretion of sediments when conducting dredging operations at various

Appendix 16.1b - DNV Addendum Report 2005.pdf:16:locations. Any seasonal issues for dredging must be evaluated on the basis of this information.

Appendix 16.1b - DNV Addendum Report 2005.pdf:16:two options of dredging equipment at four various locations. The spatial plots show the

Appendix 16.1b - DNV Addendum Report 2005.pdf:16:neap tidal conditions, and two options of dredging equipment for four locations. Spatial plots

Appendix 16.1b - DNV Addendum Report 2005.pdf:17:The specified 12 weeks for the dredging operation is according to a quote from a dredging

Appendix 16.1b - DNV Addendum Report 2005.pdf:17:See also Chapter 4 Impact of dredging operations on Seal Sands above.

Appendix 16.1b - DNV Addendum Report 2005.pdf:17:fish mortality during de-watering and the impact of dredging operations on migratory Salmonids,

Appendix 16.1b - DNV Addendum Report 2005.pdf:17:including proposed mitigation measures. Dredging in April, May and early June must be avoided

Appendix 16.1b - DNV Addendum Report 2005.pdf:17:dredging in this period. These are at their most vulnerable to poor water quality during spring /

Appendix 16.1b - DNV Addendum Report 2005.pdf:17:summer, when dredging is proposed.

Appendix 16.1b - DNV Addendum Report 2005.pdf:18:12 week dredging operation (section 21).

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:necessary to monitor the levels of dissolved oxygen in the water column during dredging

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:See also Chapter 4 Impact of dredging operations on Seal Sands above.

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:10 CURRENT DREDGING PRACTICES IN THE TEES ESTUARY

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:DNV approached PD Teesport for their experiences related to seasonal impacts of their dredging

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:1: At what times of the year is maintenance (or capital) dredging carried out? Do you avoid

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:dredging at certain times due to wildlife (birds, fish seals ect.) and in that case, have you carried

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:Maintenance dredging in Seaton Channel is carried out in accordance with an agreed and

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:the Environment Agency. This allows dredging of the inner channel on a rising tide just before

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:high water and the dredging of the outer channel just after high water. This methodology still

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:and does impact on dredging access hence quantity dredged.

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:2: What amounts of dredging material is currently taken out? According to a report by HR

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:Wallingford from 2002, the annual dredging volumes have decreased in the latter years, and is

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:the current dredging effort adequate to maintain required depths?

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:Current average annual dredge quantities equate to approximately 2000 cubic metres per

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:annum however the channel although subject to limited maintenance dredging is in places above

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:the nominal dredge depth, in recent years the maintenance volume has been below that average

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:3: What is the current dredging effort in Seaton Channel? It is noted as a navigable channel with

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:maintenance dredging effort increase when deepening the channel?

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:The dredge effort is as per Q2 above, the channel is regularly sounded so the annual siltation

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:rate can be derived. Any predicted effect on future dredged effort as a result of deepening the

Appendix 16.1b - DNV Addendum Report 2005.pdf:19:4: What effects have you observed on wildlife from the dredging activities? Does the sediment

Appendix 16.1b - DNV Addendum Report 2005.pdf:20:/1/ Møskeland, Garmann, Nissen Lie, Østbøll: “Environmental Assessment of dredging

Appendix 16.1b - DNV Addendum Report 2005.pdf:20:/8/ PD Teesport Conservancy Division, Dredging control charts, sounded throughout

502 - Waste FD MASTER(2).pdf:1:Seaton Port Dredge, Able UK

502 - Waste FD MASTER(2).pdf:2:PROJECT TITLE: Seaton Port Dredge

502 - Waste FD MASTER(2).pdf:4: behalf of Able UK to accompany a Marine Licence application for a capital dredge for

502 - Waste FD MASTER(2).pdf:4: three years and maintenance dredging of ten years. The proposed development site

502 - Waste FD MASTER(2).pdf:4: the existing and proposed dredging area and depth respectively.

502 - Waste FD MASTER(2).pdf:5:2.2 Able UK requires this dredging berth for operational purposes. To prevent the

502 - Waste FD MASTER(2).pdf:5: dredging from being undertaken would cause the channel to silt-up and would stop

502 - Waste FD MASTER(2).pdf:5:2.4 To re-use the material dredged would not be cost effective. In addition, we are not

502 - Waste FD MASTER(2).pdf:6: material dredged.

502 - Waste FD MASTER(2).pdf:6:2.6 In relation to other means of recovery of the material dredged, the only option

502 - Waste FD MASTER(2).pdf:7: are no feasible alternatives to situating the material dredged from the proposed

502 - Waste FD MASTER(2).pdf:7:3.2 It is important note, dredging currently takes place in the proposed area and the

502 - Waste FD MASTER(2).pdf:8:4.2 This assessment has shown that the only feasible action is for the dredged material

ASC-001-00006 A Seaton Channel MMO Application 2015.pdf:1: DREDGED

ASC-001-00006 A Seaton Channel MMO Application 2015.pdf:1: DREDGED DEPTH

ASC-001-00006 A Seaton Channel MMO Application 2015.pdf:1: -20.0 LAT MATERIAL TO BE DREDGED Project:

Licence Document (Marine).pdf:5:The project is to improve access into Able Seaton Port by undertaking a capital dredge

Licence Document (Marine).pdf:5:to deepen the approach channel and undertaking maintenance dredging to retain

Licence Document (Marine).pdf:6:Activity type Navigational dredging (capital)

Licence Document (Marine).pdf:6: able to access Able Seaton Port. Initially capital dredging

Licence Document (Marine).pdf:6: 10/11 would need to be deepened. The dredged material

Licence Document (Marine).pdf:6:Methodology A backhoe dredger will be used to remove the clay

Licence Document (Marine).pdf:6: has finished, the dredge area will be levelled using bed

Licence Document (Marine).pdf:6:Programme of works This will be dependant on the need to dredge to receive the

Licence Document (Marine).pdf:6: larger vessels, tides and when the dredgers are available.

Licence Document (Marine).pdf:6:Activity 1.2 - Maintenance dredging of Seaton Channel, Holding Basin, Quays 10

Licence Document (Marine).pdf:6:Activity type Navigational dredging (maintenance)

Licence Document (Marine).pdf:7: capital dredged the depths will need to be maintained by

Licence Document (Marine).pdf:7: maintenance dredging annually.

Licence Document (Marine).pdf:7: amounts to be dredged for each of the sites.

Licence Document (Marine).pdf:7:Methodology The maintenance dredging will be undertaken using a

Licence Document (Marine).pdf:7: trailer suction hopper dredger followed by Plough dredger

Licence Document (Marine).pdf:7: walls, which the trailer suction hopper dredger cannot

Licence Document (Marine).pdf:7:Activity 2.1 - Disposal of dredged material

Licence Document (Marine).pdf:7:Activity type Disposal of dredged material

Licence Document (Marine).pdf:7: able to access Able Seaton Port. Initially capital dredging

Licence Document (Marine).pdf:7: Quays 10/11 would need to be deepened. The dredged

Licence Document (Marine).pdf:7: The clay removed by backhoe dredger will be loaded onto

Licence Document (Marine).pdf:8:Methodology The capital dredging will be undertaken using trailer

Licence Document (Marine).pdf:8: suction hopper dredger with the material on board taken

Licence Document (Marine).pdf:8:Programme of works The capital dredging will take place on an as and when

Licence Document (Marine).pdf:8:Activity 3.1 - Disposal of dredged silts and soft material

Licence Document (Marine).pdf:8:Activity type Disposal of dredged material

Licence Document (Marine).pdf:8:Description The maintenance dredging has been undertaken, the

Licence Document (Marine).pdf:8: dredged material will need to be disposed of. The material

Licence Document (Marine).pdf:8: dredged by trailer suction hopper dredger will be taken to

Licence Document (Marine).pdf:8: suction hopper dredger so an onshore side crane will be

Licence Document (Marine).pdf:9:Methodology When the maintenance dredge of the silt will be

Licence Document (Marine).pdf:9: undertaken using a trailer suction hopper dredger, the

Licence Document (Marine).pdf:9: dredged material will then be taken to the designated

Licence Document (Marine).pdf:9: be reached and therefore dredged by the trailer suction

Licence Document (Marine).pdf:9: hopper dredger, will be removed by grab by an on shore

Licence Document (Marine).pdf:9: side crane. The dredged material will not be disposed of

Licence Document (Marine).pdf:9:Programme of works The maintenance dredging, and associated disposal, will

Licence Document (Marine).pdf:9: the depths reached by the capital dredging.

Licence Document (Marine).pdf:11:Where a licensed activity comprises dredging or the disposal of dredged material,

Licence Document (Marine).pdf:11:the total quantity of material authorised to be dredged or disposed of in any given

Licence Document (Marine).pdf:11:For each time period, the actual quantity dredged or disposed of shall be calculated by

Licence Document (Marine).pdf:11:adding the quantity of material dredged or disposed of during that time period under

Licence Document (Marine).pdf:11:this version of this licence to that dredged or disposed of under any previous version

Licence Document (Marine).pdf:12:5.2.1 There must be no dredging during the months of February and March.

Licence Document (Marine).pdf:12:5.2.2 There must be no dredging in the period 2 hours either side of low tide between 15 June to 31 August.

Licence Document (Marine).pdf:12:5.2.3 If dredging is to be continuous over 24 hours, there must be window of non-dredging activity of 3 hours on each flooding

Licence Document (Marine).pdf:12:5.2.4 There must be no dredging in the period 2 hours either side of low tide between November to January inclusive.

Licence Document (Marine).pdf:12:5.2.5 If slope failure is identified, the Channel dredging slope failure contingency plan (licence schedule 4) must be followed.

Licence Document (Marine).pdf:13:5.2.9 Any man-made material must be separated from the dredged material and disposed of to land.

Licence Document (Marine).pdf:14: To ensure only suitable material is dredged and disposed of at sea.

Licence Document (Marine).pdf:14: use of the dredged material yet to be disposed of no later than 1 February each year.

Licence Document (Marine).pdf:14: To provide evidence of the continued consideration of options for dredged material under the waste hierarchy and in

Licence Document (Marine).pdf:15:5.2.16 The District Marine Office must be notified within 10 days of completion of each of the dredging campaigns.

Licence schedule 5 Channel Dredging Slope Failure Contingency Plan.pdf:1: Seaton Channel Dredging – Slope Failure

Licence schedule 5 Channel Dredging Slope Failure Contingency Plan.pdf:1: 1.4. This area is recognised as an area that has to be protected from any dredging

Licence schedule 5 Channel Dredging Slope Failure Contingency Plan.pdf:1: 1.5. Able UK Ltd.’s proposed dredging within Seaton-on-Tees Channel has been

Licence schedule 5 Channel Dredging Slope Failure Contingency Plan.pdf:1: 4.1. Prior to and throughout the dredging works the slopes will be monitored and

Licence schedule 5 Channel Dredging Slope Failure Contingency Plan.pdf:1: soundings recorded. Within 7 working days of completion of dredging operations

Licence schedule 5 Channel Dredging Slope Failure Contingency Plan.pdf:1: 4.4. We have liaised with the proposed dredging companies and the Port Authority’s

Licence schedule 5 Channel Dredging Slope Failure Contingency Plan.pdf:1: 4.5. In the event that there was a local slippage of in-situ material during dredging,

Licence schedule 5 Channel Dredging Slope Failure Contingency Plan.pdf:1:5. The dredger would remove material that had slipped into the channel.

Licence schedule 5 Channel Dredging Slope Failure Contingency Plan.pdf:2: Seaton Channel Dredging – Slope Failure

Schedule 6 MLA Volumes to -9.5mCD-Rev C .pdf:1: Location dredge Capital Volume Maintenance Volume

Returns.pdf:2:MLA/2015/00334/R4 R4.1 01-FEB-2018 Alternative use of dredged material

Returns.pdf:2: Subreference Deadline options for the use of the dredged material yet to be

Returns.pdf:2: Subreference Deadline dredged material for 2018 - 2019R4.2 Consideration of

Returns.pdf:2: R4.3 01-FEB-2020 alternate use of dredged material for 2019 - 2020R4.3

Returns.pdf:2: Consideration of alternate use of dredged material

Returns.pdf:2: Open dredged material for 2021 - 2022R4.5 Consideration of

Returns.pdf:2: alternate use of dredged material for 2022 - 2023R4.6

Returns.pdf:2: Subreference Deadline Consideration of alternate use of dredged material

Returns.pdf:2: Status dredged material for 2024 - 2025R4.8 Consideration of

Returns.pdf:2: Open alternate use of dredged material for 2025 - 2026

Decision Letter (Marine).pdf:1:maintenance dredging at Able Seaton Port berths, Holding Basin and Channel and

Decision Letter (Marine).pdf:2:during the dredging operations.

Decision Letter (Marine).pdf:2:Please note that any changes in planned dredging from those agreed and licenced

1911South-Tees-Master-Plan-Nov-19.2.pdf:44: 0.00M DREDGED CHANNEL DEPTHS SHOWN IN 'METRES LAT'

1911South-Tees-Master-Plan-Nov-19.2.pdf:110: draught at the quay interface, via pocket dredging. also been shown in establishing an onshore engineering

R-2021-0674-NM-63262_01 - Teesworks S96A Cover Letter - 04.08.21(1).PDF:1:‘Demolition of existing redundant quay structures, capital dredging and development of new quay and

R-2021-0674-NM-Officer Report 0674.pdf:2:dredging and development of new quay and associated works (Phase 1)

R-2021-0674-NM-ApplicationFormRedacted.pdf:2:structures, capital dredging and development of new quay and associated works (Phase I)

R-2021-0674-NM-DECISION NOTICE.pdf:1: CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND

R-2021-0674-NM-DECISION NOTICE.pdf:1: PC1084-RHD-SB-EN-DR-EVC-1113_P01 Dredging Plan received by the LPA on

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:1: • An additional 29,000m3 of material to be dredged from the Tees Dock turning circle;

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:1: • An additional 416,000m3 of material to be dredged from the channel and berth pocket; and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:1: the berth pocket and the licensed activities relating to dredging to account for dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:1: • Cefas SEAL (Dredge and Disposal) team;

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:1:2 Response to Cefas SEAL (Dredge and Disposal) team

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:1:The Applicant can confirm that Cefas’ interpretation of the change in dredge and disposal volumes

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:2:1.9 for sand, which is where the discrepancy between Cefas’ cubic metres for the dredging activity and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:2:response to RFI 18, Cefas Table 1 accurately presents the cubic metres for the dredging activity and wet

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:2:For clarity, the table setting out the proposed change in dredge and disposal volumes from the current

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:2:Table 2.1 Change in dredge and disposal and material type breakdown requested as part of MLV2.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:2: Dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:2: 3. MMO require a more detailed reassessment or discussion of how the additional dredged material

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:2: 5.2.11) associated with dredging activity in proximity to the contaminated material boundary is

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:2: 5. MMO require clarification whether any mitigation associated with cutter suction dredging (such

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:2: 6. MMO require additional information to fully understand how the dredging schedule has or will be

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:3: alongside other relevant ongoing and nearby works with dredging elements would suffice at this

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:3:result of increased volumes of dredged material to be disposed of offshore.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:3:The additional dredge volume requested for the channel and berth pocket as part of Marine Licence

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:3:3.4 Clarification on mitigation associated with dredging within

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:3:under a landside excavation scope of work, as it was not considered dredging.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:3:of the capital dredging works. Once this material, inclusive of all made ground has been recovered to

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:3:land, it is the material beneath this that is being requested to be dredged and disposed of offshore as

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:4:3.5 Clarification on mitigation associated with Cutter Suction Dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:4:Variation 1 compares the Cutter Suction Dredger (CSD) technique with those assessed in the EIA.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:4: Figure 1: Illustration of the CSD Dredging at the Riverbed Level

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:5:3.6 Further information regarding the dredging schedule

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:5:Variation 1, the capital dredging with the CSD will take approximately 9 weeks. This duration does not

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:5:South Bank project team are not in a position to advise on the timeline of other capital dredging projects

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:5:on the River Tees but are not currently aware of any potential overlaps between planned capital dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:5:“Please accept this letter as written confirmation that should it become apparent that the dredging and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:5:disposal from South Bank Quay could temporally coincide with the dredging works for the NGCT project,

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:5:the total (aggregated) quantity of dredged material to be disposed will not exceed 1.34 million m3 per

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:8:Teesworks – South Bank Quay Phase 1 Dredging Works

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:8: months in advance of the proposed start date of capital dredging and disposal for South Bank

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:8: MMO no later than 3 months in advance of the proposed start date of capital dredging and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:8: • Written confirmation that disposal of dredged material from the South Bank Quay project

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:8: single phase of the capital dredging and disposal for the two projects would occur at the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:8: • Written confirmation that the total (aggregated) quantity of dredged material to be

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:8: assessed within the EIA), should it be apparent that the dredging and disposal from South

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:8: Bank Quay could temporally coincide (meaning that any phase of the capital dredging and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:8: associated with offshore disposal should it be apparent that the dredging and disposal

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:8: (ii) the total (aggregated) quantity of dredged material to be disposed could exceed 1.34

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:8: predicted cumulative environmental impacts of disposal of dredged material.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:9:dredging activities and are fully aware of this condition. In the very unlikely event that the dredge

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:9:Please accept this letter as written confirmation that should it become apparent that the dredging and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:9:disposal from South Bank Quay could temporally coincide with the dredging works for the NGCT

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1141-MLA.2020.00506.2 SBQ MLV2 FIR 19 Response.pdf:9:project, the total (aggregated) quantity of dredged material to be disposed will not exceed 1.34 million

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:1: 9. To carry out any form of dredging within the UK marine licensing area (whether or not involving the removal of any material

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:1:Description of The previously licenced scheme (L/2021/00333/1) comprises demolition, capital dredging, offshore disposal of dredged material,

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:2: • Capital dredging of approximately 1,800,000m3 of marine sediments with offshore disposal into the Tees Bay C disposal

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:2: site. It is proposed that dredging is undertaken using a trailing suction hopper dredger (TSHD) and a backhoe dredger.

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:2: This HRA relates only to the variation request to add cutter suction dredger to licenced methods, to increase dredge to 11.5m bCD

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:2: from 11m bCD to accommodate the 0.5m over-dredge allowance required by the dredging contractor and to increase dredge

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:2: footprint to reflect completion of the detailed design of the dredge side slopes. A technical drawing showing the change in footprint

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:2: Licensable activity/ies from the project that have the potential to interact with the NSN site: Dredging of material

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:3: Licensable activity/ies from the project that have the potential to interact with the NSN site: Dredging of material

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:4:The Advice on Operations (AoO) category of marine activity used is Ports and Harbours (Construction) – Capital Dredging.

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:6: • Ruff by the proposed dredge. The occurrence of almost daily

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:6: • Sandwich tern maintenance dredging throughout the estuary suggests that

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:6: suspended sediments during dredging represents a very localised,

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:6: existing disturbance including regular maintenance dredging, movements

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:6: The variation to the existing licence is to to add cutter suction dredger to

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:6: licenced methods, to increase dredge to 11.5m bCD from 11m bCD to

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:6: accommodate the 0.5m over-dredge allowance required by the dredging

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:6: contractor and to increase dredge footprint to reflect completion of the

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:6: detailed design of the dredge side slopes.

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:6: along with the dredge and disposal elements concluded there was no

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:7: seabed dredging, movements of large commercial vessels and land-side

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:7:• Intertidal mud The variation to the existing licence is to to add cutter suction dredger to

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:7:• Intertidal rock licenced methods, to increase dredge to 11.5m bCD from 11m bCD to

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:7:• Intertidal biogenic reef: accommodate the 0.5m over-dredge allowance required by the dredging

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:7: mussel beds contractor and to increase dredge footprint to reflect completion of the

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:7:• Intertidal mixed detailed design of the dredge side slopes.

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:7: along with the dredge and disposal elements concluded there was no

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:9: This scheme comprises capital dredging up to 4.8 million m3 of sediment from the

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:9: riverbed, realignment of the approach channel, disposal of dredged material offshore,

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:10: approximately 500m from the dredge locations this variation relates to. Considering the

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:10: dredge area, and the proposed small construction period of 2-3 months over low tide

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:10: approximately 200m from the dredge location. Due to the small scale of operations, the

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:10: ladders. The project is approximately 200m from the dredge location. Due to the small

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:11:cutter suction dredger to the approved licenced licenced methods, to increase dredge to 11.5m bCD from 11m bCD to accommodate the 0.5m over-dredge

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:11:allowance required by the dredging contractor and to increase dredge footprint to reflect completion of the detailed design of the dredge side slopes.

MLA_2020_00506-20220512_MLA_2020_00506_1_variation_HRA_FINAL.pdf:13:Dredge boundary change between existing licence and proposed variation

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:of dredged material from Phase 1 of the project, a capital dredge of the Tees Dock turning circle, the capital

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:dredge of the channel and berth pocket, the demolition of existing Infrastructure and the placement of rock

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:For the reason ‘To monitor impacts to water quality during dredging’, condition 5.2.7 of the marine licence

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:The dredging activities approved by this licence may not commence until such a time as a scheme of

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:submitted to MMO for written confirmation prior to dredging works commencing.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:If permission is granted by the MMO to undertake dredging operation during 1st July to 31st August

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:(inclusive), dissolved oxygen levels must be monitored prior to the dredging activity, as a minimum,

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:monitored every hour during the dredging activity. If a drop of 1m/g of dissolved oxygen is observed, than

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:the dredging activity must temporarily pause for a period of 6 hours (a tidal cycle) or until the reading

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:2:general water quality monitoring which applies to the entire duration of dredging.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:2:To satisfy condition 5.2.9, at this time STDL confirm that no dredging will be undertaken during July and

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:2:August 2022. In the event that dredging is required during July and / or August 2023, STDL may apply to

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:3: Condition 5.2.8 and condition 5.2.9 only apply to dredging undertaken within the

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:3: To satisfy condition 5.2.9 at this time, STDL confirm that no dredging will be

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:4: To the attention to the MMO case officer only: In regard to this consultation, I Noted. STDL consider that the commitment not to dredge within July and August

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:4: avoiding piling and dredging works during key migratory periods for

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:4: further details) due to outstanding uncertainties of multiple dredging

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:4: Royal Haskoning, the consultant for STDL, to conduct dredging

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:5: iv. Therefore, based on our current knowledge and the evidence Noted. STDL consider that the commitment not to dredge within July and August

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:5: cumulative noise and SSC from simultaneous dredging and piling cumulative activities upon migratory salmonids within the Tees.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:5: proposed dredging/piling activities to overlap with the peak salmon

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:5: migration, I cannot support either the dredging works being

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:5: regard to dredging works, as previously recommended, the MMO

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:5: programme of dredging works to minimise disruption to the River

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:5: vi. However, whilst we do not support dredging activities to be Noted. Please see below for responses to comments received from Cefas in

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: data with two monitoring buoys installed one week prior to dredging commencing

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: dredging and for one week after dredging has been completed.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: proposed monitoring of DO and its inclusion in the ML conditions. In my opinion entire dredge campaign. This is in no way related to monitoring required for

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: the monitoring is neither suitable or sufficient to prevent or reduce significant dredging undertaken during the embargo period of July and August, as required by

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: monitoring specifications related to their expertise. To satisfy condition 5.2.9 at this time, STDL confirm that no dredging will be

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: dredge footprint have been proposed based on the results of the sediment plume responses to the Environment Agency’s comments.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: • Control site: upstream of the proposed Phase 1 quay dredge footprint

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: (outside of the dredge footprint and outside of the predicted zone of

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: • Dredge site: adjacent to the dredge footprint at the proposed quay (within

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: completion of the dredging is adequate to illustrate a return to baseline conditions.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: It is not clear how the monitoring will be used to enforce a moratorium on dredging with respect to dredging within the embargo period (July – August), as required by

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: appears from the text that dredging would not be stopped if DO levels at both the date. To avoid conflating condition 5.2.7 and condition 5.2.9 of the marine licence,

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: Dredge site and the Control site drop by 1 mg/l. The condition states that: the Scheme of Monitoring has been revised to address condition 5.2.7 only.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: “a pause in dredging is required due to a drop in DO of 1mg/l or more between the At this time, to satisfy condition 5.2.9 of the marine licence, STDL confirm that no

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: two monitoring buoys and the DO does not return to baseline levels after six hours dredging will be undertaken within July and August of 2022.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: (a tidal cycle), they will request permission to re-commence dredging. The reason

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: the estuary which may not be linked with the proposed dredging, and which are

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: baseline conditions prior to re-commencing dredging may unnecessarily restrict

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: levels of 1 mg/l at the Dredge site in comparison to the Control site. If DO levels of

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: 1 mg/l dropped at both the Dredge site and the Control site then dredging wouldn’t

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: levels which are not related to the dredge”.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: though my understanding of the monitoring is that dredging would cease if DO

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: In my opinion, if DO were not to return to ‘normal levels’, I recommend dredging

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: Regarding compliance with condition 5.2.9., it is proposed that comparisons of DO Please refer to the above response, in which STDL confirm that dredging will not

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: a drop in DO levels of 1 mg/l at the Dredge site in comparison to the Control site. It

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: appears from the monitoring proposal that if DO levels at both the Dredge site and

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: the Control site drop by 1 mg/l, dredging would not be stopped as the Applicant

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: justifies continuation of dredging based on their opinion that external factors not

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: related to dredging would influence any reduction in DO levels. However, when

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: reviewing the dredge and control site locations (Figure 1), both sites are relatively

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: close to each other, and to the dredging activity. Therefore, in my opinion there

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: Furthermore, it is not clear how the baseline/’normal levels’ DO levels within the Please refer to the above response, in which STDL confirm that dredging will not

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: for the comments above) which have not been taken into consideration. In my overlapping of dredge campaigns between STDL and PDT during this sensitive

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: opinion, due to the number of dredging activities occurring in the Tees at the period for salmon migration.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: moment, including regular maintenance dredging undertaken under the Harbour

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: dredging/piling operations occurring simultaneously in the Tees.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: As per comment 13, the Applicant suggests that ‘one week of monitoring post Due to the seasonal restriction on dredging activities within July and August (i.e.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: completion of the dredging is adequate to illustrate a return to baseline conditions’. the dredging embargo) and the requirement to progress with dredging the area

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: SSCs) from the four modelled dredging phases set out in Section 6 of EIA report2, than one week prior to commencement of dredging activities. However, STDL will

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: the maximum area affected by increased SSC includes the entire width of the deploy monitoring buoys as soon as possible in advance of the proposed dredging

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:9: dredging will be observed throughout the whole dredging continuous period of 4

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:9: completion of the dredging activities. It is anticipated that monitoring during this

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:9: dredging activities.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:10: extent of the quay dredge, one would be near to the eastern/ downstream

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:10: side of the dredge and one would be near to the turning circle/ other area

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:10: to be dredged.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: returns to within this 1mg/l range. For the other determinants, if the figure licence, the stop thresholds only apply to dredging undertaken within the months

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: To satisfy condition 5.2.9 at this time, STDL confirm that no dredging will be

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: also 1m below surface-please see Fisheries section below). required due to the agreement not to dredge in July and August 2022 please

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: • We would request that the buoys are installed longer than one week prior Due to the seasonal restriction on dredging activities within July and August (i.e.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: to the commencement of the dredging activity. This will provide more site the dredging embargo) and the requirement to progress with dredging the area

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: advance of the proposed dredging works with a minimum of one weeks’ data

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: completion of the dredging activities. It is anticipated that monitoring during this

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: dredging activities.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:12: prior to the commencement of the dredging activity. For the stop longer be required due to the agreement not to dredge in July and August 2022

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:12: dissolved oxygen, as with condition 5.2.9, if the influenced figure drops As aforementioned, STDL have confirmed that no dredging will now be undertaken

MLA_2020_00506-20230224_S_Rennie_Comments_MMO_Response_v1.pdf:1: determined that dredging is not a cause. It is very unlikely that maintenance

MLA_2020_00506-20230224_S_Rennie_Comments_MMO_Response_v1.pdf:1: dredging was the cause. It is exceptionally unlikely that capital dredging on

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:1: 9. To carry out any form of dredging within the UK marine licensing area (whether or not involving the removal of any material

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:1:Description of The previously licenced scheme (L/2021/00333/1) comprises demolition, capital dredging, offshore disposal of dredged material,

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:2: • Capital dredging of approximately 1,800,000m3 of marine sediments with offshore disposal into the Tees Bay C disposal

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:2: site. It is proposed that dredging is undertaken using a trailing suction hopper dredger (TSHD) and a backhoe dredger.

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:2: This HRA relates only to the variation request to dredge the Berth Pocket to a level of 15.9m bCD. The design dredge level within

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:2: the berth pocket is at a level of 15.4m bCD; this increase to 15.9m bCD is required to allow for 500mm of dredging tolerance in the

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:2: Berth Pocket. The additional material for disposal at sea is to be dredged from the area between the existing OSPAR/MHWS line

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:2: Licensable activity/ies from the project that have the potential to interact with the NSN site: Dredging of material

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:3: Licensable activity/ies from the project that have the potential to interact with the NSN site: Dredging of material

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:4:The Advice on Operations (AoO) category of marine activity used is Ports and Harbours (Construction) – Capital Dredging.

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:6: • Ruff by the proposed dredge. The occurrence of almost daily

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:6: • Sandwich tern maintenance dredging throughout the estuary suggests that

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:6: suspended sediments during dredging represents a very localised,

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:6: existing disturbance including regular maintenance dredging, movements

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:6: The variation request is to dredge the Berth Pocket to a level of 15.9m

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:6: bCD. The design dredge level within the berth pocket is at a level of 15.4m

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:6: dredging tolerance in the Berth Pocket. The additional material for disposal

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:6: at sea is to be dredged from the area between the existing OSPAR/MHWS

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:6: along with the dredge and disposal elements concluded there was no

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:7: seabed dredging, movements of large commercial vessels and land-side

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:7:• Intertidal mud The variation to the existing licence is to dredge the Berth Pocket to a level

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:7:• Intertidal rock of 15.9m bCD. The design dredge level within the berth pocket is at a level

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:7: mussel beds of dredging tolerance in the Berth Pocket. The additional material for

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:7:• Intertidal mixed disposal at sea is to be dredged from the area between the existing

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:7: muddy sand along with the dredge and disposal elements concluded there was no

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:9: This scheme comprises capital dredging up to 4.8 million m3 of sediment from the

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:9: riverbed, realignment of the approach channel, disposal of dredged material offshore,

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:10: approximately 500m from the dredge locations this variation relates to. Considering the

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:10: dredge area, and the proposed small construction period of 2-3 months over low tide

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:10: approximately 200m from the dredge location. Due to the small scale of operations, the

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:10: ladders. The project is approximately 200m from the dredge location. Due to the small

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:11:dredge the Berth Pocket to a level of 15.9m bCD. The design dredge level within the berth pocket is at a level of 15.4m bCD; this increase to 15.9m bCD is

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:11:required to allow for 500mm of dredging tolerance in the Berth Pocket. The additional material for disposal at sea is to be dredged from the area between the

MLA_2020_00506-20221017_MLA_2020_00506_variation 2_HRA_FINAL.pdf:13:Figure 2. Dredge area between MHWS and quay structure.

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:1: dredged berth pocket) with one heavy lift area. This may be extended by further berth

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:1: • capital dredging of sand (170,000m3) for the Tees dock turning circle;

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:2: • capital dredging of clay and sand for the channel and berth pocket (650,000m3);

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:2: • disposal of dredged material to offshore disposal site Tees Bay C (820,000m3)

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:2: • capital dredging channel and berth pocket (980,000 m3);

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:2: • disposal of dredged material to Tees Bay C (980,000m3).

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:2: relation to its natural form, and its dredged bathymetry is largely featureless. Marine waves do

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:2: reduced dredging requirements in the downstream sections by up to 24%. This is likely to have

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:3:23. Assessment of the total dredge operations is detailed and mostly presented clearly. Impacts

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:4:24. The full logic of the coastal process assessment is not clear but the total dredge amounts to 2

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:4: years’ worth of ‘normal’ dredge volumes for the whole Tees estuary being extracted within 4

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:4: However, almost all redeposition occurs within the dredged area anyway (to be removed again,

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:4:25. Disposal of the dredged material is also assessed in detail, despite proposed disposal to a

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:4: due to dredging.

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:4: cumulative disposal of the entire dredge load. This should be presented and discussed with

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:4: impact the future dredge requirement in this area?

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:4: reduction? Dredging of the turning circle is also reported as having no hydrodynamic impact,

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:4: case and indicate the magnitude of the change relative to the present. The dredged pocket and

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:5: dredging works for other facilities within the Tees coincide – it is my view that, if they do not

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:5: coincide, then there is still the prospect of very large volumes of dredging occurring in sequence,

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:5: with the stated consequence of an increase in maintenance dredging in future i.e., the

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:5: relevant to coastal process impacts. This section also discusses the potential use of dredge

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:5: beneficial reuse outlets for the substantial quantities of dredged material generated in line with

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:6: in 2000 may be invalidated by the continual development and management dredging conducted

20210119 MLA202000506 Tees South Bank Quay CP advice + JPQC.pdf:7: dredging. Since the baseline coastal processes are shaped almost entirely by the same

20210729 MLA202000506 Tees South Bank - Further Proposed Sampling to delineate an exclusion zone+SJB.pdf:1: in my capacity as advisor for dredge and disposal.

20210729 MLA202000506 Tees South Bank - Further Proposed Sampling to delineate an exclusion zone+SJB.pdf:1: characterisation of dredge areas or of areas where other activities are likely to lead to the

20210729 MLA202000506 Tees South Bank - Further Proposed Sampling to delineate an exclusion zone+SJB.pdf:1: and storage/distribution activities. The applicant proposes to conduct a capital dredge to

20210729 MLA202000506 Tees South Bank - Further Proposed Sampling to delineate an exclusion zone+SJB.pdf:1: the existing navigation channel, the latter of which will also be dredged to form a deeper berth

20210729 MLA202000506 Tees South Bank - Further Proposed Sampling to delineate an exclusion zone+SJB.pdf:1: pocket. Existing depths vary across the dredge areas, ranging from 5.7 to 13 m below Chart

20210729 MLA202000506 Tees South Bank - Further Proposed Sampling to delineate an exclusion zone+SJB.pdf:1: Datum (bCD), and the target dredge depth ranges from 11 m bCD for most areas, to 15.6 m

20210729 MLA202000506 Tees South Bank - Further Proposed Sampling to delineate an exclusion zone+SJB.pdf:1: bCD for the berth pocket only. The applicant anticipates that trailer suction hopper dredging

20210729 MLA202000506 Tees South Bank - Further Proposed Sampling to delineate an exclusion zone+SJB.pdf:1: Once dredged, the applicant intends to dispose of dredged material at Tees Bay C (TY150)

20210729 MLA202000506 Tees South Bank - Further Proposed Sampling to delineate an exclusion zone+SJB.pdf:2: Dredged Material 1, samples should be taken to provide a good representation of the volume

20210729 MLA202000506 Tees South Bank - Further Proposed Sampling to delineate an exclusion zone+SJB.pdf:2: of material to be dredged. The distribution and depth of sampling should reflect the size and

20210729 MLA202000506 Tees South Bank - Further Proposed Sampling to delineate an exclusion zone+SJB.pdf:2: depth of the area to be dredged, the amount to be dredged and the expected variability in the

20210729 MLA202000506 Tees South Bank - Further Proposed Sampling to delineate an exclusion zone+SJB.pdf:2:06e_dredged%20material%20guidelines.doc

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:of dredged material from Phase 1 of the project, a capital dredge of the Tees Dock turning circle, the capital

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:dredge of the channel and berth pocket, the demolition of existing Infrastructure and the placement of rock

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:For the reason ‘To monitor impacts to water quality during dredging’, condition 5.2.7 of the marine licence

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:The dredging activities approved by this licence may not commence until such a time as a scheme of

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:submitted to MMO for written confirmation prior to dredging works commencing.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:If permission is granted by the MMO to undertake dredging operation during 1st July to 31st August

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:(inclusive), dissolved oxygen levels must be monitored prior to the dredging activity, as a minimum,

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:monitored every hour during the dredging activity. If a drop of 1m/g of dissolved oxygen is observed, than

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:1:the dredging activity must temporarily pause for a period of 6 hours (a tidal cycle) or until the reading

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:2:general water quality monitoring which applies to the entire duration of dredging.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:2:To satisfy condition 5.2.9, at this time STDL confirm that no dredging will be undertaken during July and

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:2:August 2022. In the event that dredging is required during July and / or August 2023, STDL may apply to

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:3: Condition 5.2.8 and condition 5.2.9 only apply to dredging undertaken within the

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:3: To satisfy condition 5.2.9 at this time, STDL confirm that no dredging will be

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:4: To the attention to the MMO case officer only: In regard to this consultation, I Noted. STDL consider that the commitment not to dredge within July and August

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:4: avoiding piling and dredging works during key migratory periods for

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:4: further details) due to outstanding uncertainties of multiple dredging

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:4: Royal Haskoning, the consultant for STDL, to conduct dredging

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:5: iv. Therefore, based on our current knowledge and the evidence Noted. STDL consider that the commitment not to dredge within July and August

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:5: cumulative noise and SSC from simultaneous dredging and piling cumulative activities upon migratory salmonids within the Tees.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:5: proposed dredging/piling activities to overlap with the peak salmon

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:5: migration, I cannot support either the dredging works being

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:5: regard to dredging works, as previously recommended, the MMO

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:5: programme of dredging works to minimise disruption to the River

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:5: vi. However, whilst we do not support dredging activities to be Noted. Please see below for responses to comments received from Cefas in

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: data with two monitoring buoys installed one week prior to dredging commencing

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: dredging and for one week after dredging has been completed.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: proposed monitoring of DO and its inclusion in the ML conditions. In my opinion entire dredge campaign. This is in no way related to monitoring required for

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: the monitoring is neither suitable or sufficient to prevent or reduce significant dredging undertaken during the embargo period of July and August, as required by

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: monitoring specifications related to their expertise. To satisfy condition 5.2.9 at this time, STDL confirm that no dredging will be

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: dredge footprint have been proposed based on the results of the sediment plume responses to the Environment Agency’s comments.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: • Control site: upstream of the proposed Phase 1 quay dredge footprint

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: (outside of the dredge footprint and outside of the predicted zone of

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:6: • Dredge site: adjacent to the dredge footprint at the proposed quay (within

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: completion of the dredging is adequate to illustrate a return to baseline conditions.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: It is not clear how the monitoring will be used to enforce a moratorium on dredging with respect to dredging within the embargo period (July – August), as required by

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: appears from the text that dredging would not be stopped if DO levels at both the date. To avoid conflating condition 5.2.7 and condition 5.2.9 of the marine licence,

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: Dredge site and the Control site drop by 1 mg/l. The condition states that: the Scheme of Monitoring has been revised to address condition 5.2.7 only.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: “a pause in dredging is required due to a drop in DO of 1mg/l or more between the At this time, to satisfy condition 5.2.9 of the marine licence, STDL confirm that no

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: two monitoring buoys and the DO does not return to baseline levels after six hours dredging will be undertaken within July and August of 2022.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: (a tidal cycle), they will request permission to re-commence dredging. The reason

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: the estuary which may not be linked with the proposed dredging, and which are

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: baseline conditions prior to re-commencing dredging may unnecessarily restrict

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: levels of 1 mg/l at the Dredge site in comparison to the Control site. If DO levels of

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: 1 mg/l dropped at both the Dredge site and the Control site then dredging wouldn’t

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: levels which are not related to the dredge”.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:7: though my understanding of the monitoring is that dredging would cease if DO

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: In my opinion, if DO were not to return to ‘normal levels’, I recommend dredging

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: Regarding compliance with condition 5.2.9., it is proposed that comparisons of DO Please refer to the above response, in which STDL confirm that dredging will not

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: a drop in DO levels of 1 mg/l at the Dredge site in comparison to the Control site. It

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: appears from the monitoring proposal that if DO levels at both the Dredge site and

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: the Control site drop by 1 mg/l, dredging would not be stopped as the Applicant

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: justifies continuation of dredging based on their opinion that external factors not

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: related to dredging would influence any reduction in DO levels. However, when

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: reviewing the dredge and control site locations (Figure 1), both sites are relatively

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: close to each other, and to the dredging activity. Therefore, in my opinion there

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: Furthermore, it is not clear how the baseline/’normal levels’ DO levels within the Please refer to the above response, in which STDL confirm that dredging will not

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: for the comments above) which have not been taken into consideration. In my overlapping of dredge campaigns between STDL and PDT during this sensitive

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: opinion, due to the number of dredging activities occurring in the Tees at the period for salmon migration.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: moment, including regular maintenance dredging undertaken under the Harbour

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: dredging/piling operations occurring simultaneously in the Tees.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: As per comment 13, the Applicant suggests that ‘one week of monitoring post Due to the seasonal restriction on dredging activities within July and August (i.e.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: completion of the dredging is adequate to illustrate a return to baseline conditions’. the dredging embargo) and the requirement to progress with dredging the area

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: SSCs) from the four modelled dredging phases set out in Section 6 of EIA report2, than one week prior to commencement of dredging activities. However, STDL will

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:8: the maximum area affected by increased SSC includes the entire width of the deploy monitoring buoys as soon as possible in advance of the proposed dredging

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:9: dredging will be observed throughout the whole dredging continuous period of 4

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:9: completion of the dredging activities. It is anticipated that monitoring during this

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:9: dredging activities.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:10: extent of the quay dredge, one would be near to the eastern/ downstream

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:10: side of the dredge and one would be near to the turning circle/ other area

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:10: to be dredged.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: returns to within this 1mg/l range. For the other determinants, if the figure licence, the stop thresholds only apply to dredging undertaken within the months

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: To satisfy condition 5.2.9 at this time, STDL confirm that no dredging will be

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: also 1m below surface-please see Fisheries section below). required due to the agreement not to dredge in July and August 2022 please

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: • We would request that the buoys are installed longer than one week prior Due to the seasonal restriction on dredging activities within July and August (i.e.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: to the commencement of the dredging activity. This will provide more site the dredging embargo) and the requirement to progress with dredging the area

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: advance of the proposed dredging works with a minimum of one weeks’ data

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: completion of the dredging activities. It is anticipated that monitoring during this

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:11: dredging activities.

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:12: prior to the commencement of the dredging activity. For the stop longer be required due to the agreement not to dredge in July and August 2022

PC1084-RHD-SB-EN-NT-EV-1127 MLA.2020.00506.R8 Response to Consultation Comments on Scheme of Monitoring.pdf:12: dissolved oxygen, as with condition 5.2.9, if the influenced figure drops As aforementioned, STDL have confirmed that no dredging will now be undertaken

20210128 MLA202000507 Tee south bank phase 2 shellfish advice + JPQC.pdf:1:8. In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of

20210128 MLA202000507 Tee south bank phase 2 shellfish advice + JPQC.pdf:1: dredged material, placement of rock in the berth pocket and construction and operation of a

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:1:Application: (Disposal of dredged material, Navigational dredging (capital), Other deposits,

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:1:PC1084-RHD-SB-DN-DR-SK-0001 - MODIFIED PROPOSAL FOR PHASE 2 DREDGING PLAN-Rev

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:2:(NGCT). Particular areas that should be considered include the potential for dredging for South Bank

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:2:Natural England advises that before any dredging works takes place for Phase 2 of this construction, a

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:2:Before dredging works take place on Phase 2 of this project, Natural England must be reconsulted. A

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:2:with Natural England specifying the timings of the dredging and an assessment of the impacts and in-

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:2:particularly from increased noise and dredging.

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:4:environmental information and dredging plan

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:4: discarded contaminated dredge material will not be disposed of at

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:4:3.1.1 We note the Applicant’s response that the revised dredge footprint of

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:4:DREDGING PLAN-Rev P01 Condition: the work programme should be created and submitted to

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:4: England before any Phase 2 dredging can be completed. This work

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:4: programme should include times of when this dredging will be taking

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:4: place, as not to be in conflict with the maintenance dredging of the

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:4:Table 5.3 We note the applicants comments stating that only the dredging in

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:4: It is still unclear what the impacts of this dredging will have on the

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021 (1).pdf:5: dredging to the North Tees Mudflat and the features of the

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:1: conditions, to monitor impacts on water quality during dredging, condition 5.2.7 states that

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:1: “dredging activities approved by this licence may not commence until such a time as a scheme

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:2: during and post completion of dredging activities, should dredging be undertaken during July

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:2: mitigation to allow both maintenance and non-maintenance dredging to proceed during the

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:2: For instance, STDL is proposing to monitor water quality during dredging operations (as per

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:2: in advance of the proposed dredging works. Instruments fixed to the monitoring buoy chains

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:2: confirmed that no dredging (thus, no overlapping dredge campaigns between STDL and PDT)

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:3: dredge campaign (see documents reviewed, point 5). I appreciate and thank the applicant for

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:3: confirming that no dredging will be undertaken during the peak migratory season. Nonetheless,

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:3: to avoiding piling and dredging works during peak migratory times for salmonids (i.e., May, July

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:3: dredging currently occurring in the Tees, either simultaneously or in sequence, for which the

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:3: • Site 1: Located outside the predicted zone of influence (to act as a control during dredging

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:3: • Site 2: Located within the predicted plume associated with dredging in the turning circle.

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:3: • Site 3: Located within the predicted plume associated with dredging in the quay area.

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:3: dredging within the quay area).

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:3: commencement of dredging plus a minimum period of one week (seven consecutive days) after

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:3: dredging operations have been completed, is adequate to illustrate a return to baseline

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:4: alongside dredging activity logs. This data will be shared with the EA upon completion of the

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:4: dredging activities being completed. In my opinion, the timescale from collecting to reporting

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:4: aware that the proposed monitoring aims to monitor general water quality during dredging, as

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:5:Condition 5.2.7 states that ‘The dredging activities approved by this licence may not commence

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:5:be submitted to MMO for written confirmation prior to dredging works commencing.

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:5:Reason: To monitor impacts to water quality during dredging.

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:5:Condition 5.2.9 states that ‘If permission is granted by the MMO to undertake dredging operation

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:5:dredging activity, as a minimum, monitored every hour during the dredging activity. If a drop of 1m/g

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:5:of dissolved oxygen is observed, than the dredging activity must temporarily pause for a period of

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:6:UWN from piling or SSC from dredging) whilst waiting in refuges areas. The effects of suspended

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:6: head of the dredger.

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:7: vi. Potential disturbance caused by underwater noise from the dredging process.

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:7:Settlement of sediment around areas of dredging and disposal can have the following impacts:

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:7: iv. Exposure to contaminants contained within dredged sediment.

20220615 MLA2020005061 L2021003331 Tees South Bank (phase 1) Revised Scheme of Monitoring Review Fisheries advice FINAL.pdf:7: vi. Resuspension of sediments resulting from dredging can smother organisms and hinder

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:1: To carry out any form of dredging within the UK marine licensing area (whether or not involving the removal of any material from

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:1: Description of The proposed scheme comprises demolition, capital dredging, offshore disposal of dredged material, placement of rock in the

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:2: • Capital dredging of approximately 1,800,000m3 of marine sediments with offshore disposal into the Tees Bay C disposal

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:2: site. It is proposed that dredging is undertaken using a trailing suction hopper dredger (TSHD) and a backhoe dredger.

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:5: structures/capital dredging.

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:6: Teesmouth and Cleveland Coast SPA/pSPA/ RAMSAR: Construction of port and harbour structures/Capital Dredging

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:6: Visual disturbance maintenance dredging, movements of large commercial vessels

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:6: caused by dredging would not be significant. However, as site of

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:6: • Intertidal biogenic reef: mussel beds No other supporting habitats were identified. The proposed dredge

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:6: slopes to be created as part of the proposed dredge, no direct or

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:7: • Little Tern (B) dredging, movements of large commercial vessels and land-side

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:8: including regular maintenance dredging, movements of large

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:8:solids (water clarity) by the proposed dredge. The occurrence of almost daily

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:8: • Sandwich Tern (NB) maintenance dredging throughout the estuary suggests that

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:8: pSPA: suspended sediments during dredging represents a very localised,

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:8: dredge.

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:9: effects on the baseline conditions. Furthermore, the dredging

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:9: requiring ongoing maintenance dredging (but no change in the

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:9: overall maintenance dredging strategy for the Tees estuary as a

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:10: Furthermore, the dredging footprint in the main channel does not

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:11: With regard to water column –maintenance dredging routinely

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:11: application reports that the area has previously been dredged to

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:12: ongoing maintenance dredging (but no change in the overall

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:12: maintenance dredging strategy for the Tees estuary as a whole).

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:14: With regard to water column- the capital dredge will cause a

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:14:Removal of non-target Bird Species. No There is a potential for the construction/dredge to impact prey

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:14:species species of these bird species. Maintenance dredging is routinely

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:15: ongoing maintenance dredging (but no change in the overall

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:15: maintenance dredging strategy for the Tees estuary as a whole).

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:15: • Sandwich Tern (NB) maintenance dredging, movements of large commercial vessels

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:16: dredging, movements of large commercial vessels and land-side

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:17: to ongoing activities within the estuary (i.e. maintenance dredging

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:18: ongoing activities within the estuary (i.e. maintenance dredging

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:18:changes, including caused by the proposed dredge. The occurrence of almost daily

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:18: maintenance dredging throughout the estuary suggests that

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:18: • Pied avocet (B) suspended sediments during dredging represents a very localised,

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:18: completion of the dredge. No effect on overall population level or

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:19: requiring ongoing maintenance dredging (but no change in the

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:19: overall maintenance dredging strategy for the Tees estuary as a

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:20:L/2017/00012/3 - Able Seaton Port Capital/Maintenance dredging (expires 01/03/2026) Yes – within the pSPA/partially within the SPA. The

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:20:MLA/2020/00073 Alternative use of dredged material This is in conjunction with this application, as dredge

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:20: as the dredged sediment will be reused as part of this works. The relevant compatible pressures have been

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:23:L/2017/00012/3 - Able Seaton Port Capital/Maintenance dredging (expires 01/03/2026) Yes – within the pSPA/partially within the SPA. The

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:23:Holding basin and Channel. TERRC maintenance dredge covers the whole approach channel

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:23:7,8,9 and Terrc Basin) Above water noise for commercial operations. Dredging in this area is

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:24:MLA/2020/00073 Alternative use of dredged material This is in conjunction with this application, as dredge

MLA202000506 and MLA202000507 Draft HRA phase 1 and 2.pdf:24: as the dredged sediment will be reused as part of this works. Applicant has stated that excavation of the

MLA 2020 00506 South Bank Phase 1 MLA 2020 00507 Phase 2.pdf:2:The EIA highlights that the dredging for the Turning Circle and the Berth Pocket along the

MLA 2020 00506 South Bank Phase 1 MLA 2020 00507 Phase 2.pdf:2:There is no harm during the disposal of the dredged material as the area is an agreed

MLA 2020 00506 South Bank Phase 1 MLA 2020 00507 Phase 2.pdf:3:mitigate the potential impacts from dredging and piling. This is an acceptable means of

MLA 2020 00506 South Bank Phase 1 MLA 2020 00507 Phase 2.pdf:3:mitigating the identified impacts for the dredging.

MLA 2020 00506 South Bank Phase 1 MLA 2020 00507 Phase 2.pdf:3:that any features located during dredging are recorded and reported. We believe this

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:1:Application: (Disposal of dredged material, Navigational dredging (capital), Other deposits,

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:1:PC1084-RHD-SB-DN-DR-SK-0001 - MODIFIED PROPOSAL FOR PHASE 2 DREDGING PLAN-Rev

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:2:(NGCT). Particular areas that should be considered include the potential for dredging for South Bank

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:2:Natural England advises that before any dredging works takes place for Phase 2 of this construction, a

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:2:Before dredging works take place on Phase 2 of this project, Natural England must be reconsulted. A

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:2:with Natural England specifying the timings of the dredging and an assessment of the impacts and in-

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:2:particularly from increased noise and dredging.

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:4:environmental information and dredging plan

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:4: discarded contaminated dredge material will not be disposed of at

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:4:3.1.1 We note the Applicant’s response that the revised dredge footprint of

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:4:DREDGING PLAN-Rev P01 Condition: the work programme should be created and submitted to

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:4: England before any Phase 2 dredging can be completed. This work

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:4: programme should include times of when this dredging will be taking

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:4: place, as not to be in conflict with the maintenance dredging of the

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:4:Table 5.3 We note the applicants comments stating that only the dredging in

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:4: It is still unclear what the impacts of this dredging will have on the

354204 MLA_2020_00506 - South Bank Wharf dredge Middlesbrough 5.07.2021.pdf:5: dredging to the North Tees Mudflat and the features of the

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:1:Application (Disposal of dredged material, Navigational dredging (capital), Other deposits,

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:1:  Cross-sectional channel dredge information and side slope analysis, particularly in relation to

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:1:  Impacts to waterbird interest features at North Tees Mudflat from dredging works; and

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:3:Capital dredging the assumed side slopes to be created as part of the proposed dredge, no direct

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:3: the proposed dredge. Natural England requires more detailed reassurance that

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:3: the capital dredge immediately adjacent to the North Tees Mudflat will not impact

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:3: increased risk of slumping. This includes the implications of the capital dredge

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:4:Capital dredging dredging in front of the new quay. It is stated within the EIA that the complete loss

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:4:General: barrier We welcome the commitment to limit TSHD and backhoe dredging to working

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:4: Dredging must be limited to working on one side of the estuary channel at a time.

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:5: 12.5.2 We welcome the commitment to limit TSHD and backhoe dredging to working

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:6:dredging. to tern foraging within the estuary channel.

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:6: Dredging must be limited to working on one side of the estuary channel at a time.

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:6:12.5.4 At present, the effects of visual and noise disturbance to waterbirds from dredging

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:6: To assess whether there should be a seasonal and/or tidal restriction to dredging

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:6: to the likely duration of dredging activities (particularly TSHD) occurring within

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:8:  Tees navigational channel deepening (maintenance dredge);

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:1:‘The dredging activities approved by this licence may not commence until such a time as a scheme of

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:1:submitted to MMO for written confirmation prior to dredging works commencing.

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:1:Reason: To monitor impacts to water quality during dredging.

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:1:dredging associated with the South Bank Quay project that sediment suspended within the dredging

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:1:plumes will fall to the riverbed, either soon after disturbance or spillage during the dredging operation (for

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:2:Figure 2.1 Maximum enhanced suspended solids concentrations (near surface layer) arising from dredging

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:2:Monitoring will be undertaken for the entire duration of dredge activities associated with Phase 1 of the

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:2:monitoring buoys will be installed as soon as possible in advance of the proposed dredging works as shown

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:2: • Site 1: Located outside the predicted zone of influence (to act as a control during dredging within

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:2: • Site 2: Located within the predicted plume associated with dredging in the turning circle.

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:2: • Site 3: Located within the predicted plume associated with dredging in the quay area.

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:3: • Site 4: Located outside of the predicted zone of influence (to act as a control during dredging within

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:3:below the surface. It should be noted that it is not practicable to locate monitoring buoys within the dredge

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:3:footprint as they would have to be removed to undertake the dredging works, therefore the locations of

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:3:monitoring buoys are proposed to be located close to the boundaries of the dredge footprint (noting that

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:4:commencement of dredging and remain in place during the dredging, plus a minimum period of one week

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:4:(seven consecutive days) after dredging operations have been completed. This timeframe is considered

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:4:one week of monitoring post-completion of the dredge is likely to be adequate to illustrate a return to

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:4:All recorded data will be collated and summarised in a short report alongside dredging activity logs. The

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:4: • Dredging activity logs.

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:4:data report will be provided within two months of dredging activities being completed.

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:1:‘The dredging activities approved by this licence may not commence until such a time as a scheme of

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:1:submitted to MMO for written confirmation prior to dredging works commencing.

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:1:Reason: To monitor impacts to water quality during dredging.

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:1:‘If permission is granted by the MMO to undertake dredging operation during 1st July to 31st August

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:1:(inclusive), dissolved oxygen levels must be monitored prior to the dredging activity, as a minimum,

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:1:monitored every hour during the dredging activity. If a drop of 1m/g of dissolved oxygen is observed, than

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:1:the dredging activity must temporarily pause for a period of 6 hours (a tidal cycle) or until the reading

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:2:dredging be undertaken during July and August (further detail provided in Section 3).

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:2:The proposed approach to monitoring prior to, during and post completion of dredging activities is set out

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:2:provides a comprehensive baseline understanding of DO and turbidity in the vicinity of the dredge footprint.

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:2:to dredging commencing to recover baseline readings. The monitoring buoys will remain in place during

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:2:the dredging and for one week after dredging has been completed (discussed further below).

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:2: • Control site: upstream of the proposed Phase 1 quay dredge footprint (outside of the dredge

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:2: • Dredge site: adjacent to the dredge footprint at the proposed quay (within the zone of influence of

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:2:maximum enhanced areas of suspended sediment concentrations from the dredge) were selected based

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:2:licence application (Royal HaskoningDHV, 2020)). The monitoring sites are focussed on the dredging at

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:2:the proposed quay as that is where the majority of the dredging is occurring.

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:2:It should be noted that it is not practicable to locate monitoring buoys within the dredge footprint as they

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:2:would have to be removed to undertake the dredging works, therefore the monitoring location is proposed

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:2:to be located close to the boundaries of the dredge footprint (noting that ultimate locations will be

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:3:The EIA Report (Royal HaskoningDHV, 2020) predicted that sediment suspended within the dredging

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:3:plumes will fall to the riverbed, either soon after disturbance or spillage occurring during the dredging

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:3:dredge is adequate to illustrate a return to baseline conditions.

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:3:Figure 1 Maximum enhanced suspended sediment concentrations (near-bed layer) arising from dredging activities during

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:3:the capital dredge campaign (Royal HaskoningDHV, 2020). Proposed dredge areas are shown in black. Indicative locations

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:4:Figure 2 Maximum enhanced suspended sediment concentrations (near-surface layer) arising from dredging activities

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:4:during the capital dredge campaign (Royal HaskoningDHV, 2020). Proposed dredge areas are shown in black. Indicative

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:4:As noted in Section 1, Condition 5.2.9 of the marine licence requires dredging to temporarily pause should

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:4:DO drop by 1mg/l during July and August (assuming STDL reaches agreement with the MMO to dredge

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:4:If STDL reaches agreement with the MMO to dredge in July and August, the real time data from the two

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:4:monitoring buoys to determine if there has been a drop in DO levels of 1 mg/l at the Dredge site in

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:4:comparison to the Control site. If DO levels of 1 mg/l dropped at both the Dredge site and the Control site

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:4:then dredging wouldn’t stop as this indicates there are external factors influencing the drop in the DO levels

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:4:which are not related to the dredge.

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:5:If a pause in dredging is required due to a drop in DO of 1mg/l or more between the two monitoring buoys

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:5:commence dredging. The reason being that there are a number of factors that could cause a reduction in

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:5:DO within the estuary which may not be linked with the proposed dredging and which are beyond the

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:5:commencing dredging may unnecessarily restrict the works.

PC1084-RHD-SB-EN-NT-EV-1124 P03 South Bank Phase 1 Scheme of Monitoring.pdf:5:to Condition 5.2.9 of the marine licence, should agreement with the MMO be reached to dredge during

MLA202000506 and MLA202000507 Draft HRA (2).pdf:1: To carry out any form of dredging within the UK marine licensing area (whether or not involving the removal of any material from

MLA202000506 and MLA202000507 Draft HRA (2).pdf:1:Description of The proposed scheme comprises demolition, capital dredging, offshore disposal of dredged material, placement of rock in the

MLA202000506 and MLA202000507 Draft HRA (2).pdf:2: • Capital dredging of approximately 1,800,000m3 of marine sediments with offshore disposal into the Tees Bay C disposal

MLA202000506 and MLA202000507 Draft HRA (2).pdf:2: site. It is proposed that dredging is undertaken using a trailing suction hopper dredger (TSHD) and a backhoe dredger.

MLA202000506 and MLA202000507 Draft HRA (2).pdf:5: - Construction of port and harbour structures/capital dredging.

MLA202000506 and MLA202000507 Draft HRA (2).pdf:6: Teesmouth and Cleveland Coast SPA/ RAMSAR: Construction of port and harbour structures/Capital Dredging

MLA202000506 and MLA202000507 Draft HRA (2).pdf:6: Visual disturbance dredging, movements of large commercial vessels and land-side

MLA202000506 and MLA202000507 Draft HRA (2).pdf:6: waterbirds from dredging activities.

MLA202000506 and MLA202000507 Draft HRA (2).pdf:7: • Intertidal biogenic reef: mussel beds No other supporting habitats were identified. The proposed dredge

MLA202000506 and MLA202000507 Draft HRA (2).pdf:7: created as part of the proposed dredge, no direct or indirect impact

MLA202000506 and MLA202000507 Draft HRA (2).pdf:7: • Redshank (NB) dredging, movements of large commercial vessels and land-side

MLA202000506 and MLA202000507 Draft HRA (2).pdf:8: including regular maintenance dredging, movements of large

MLA202000506 and MLA202000507 Draft HRA (2).pdf:8:suspended solids by the proposed dredge. The occurrence of almost daily

MLA202000506 and MLA202000507 Draft HRA (2).pdf:8: • Sandwich Tern (NB) maintenance dredging throughout the estuary suggests that

MLA202000506 and MLA202000507 Draft HRA (2).pdf:8: • Common Tern (B) suspended sediments during dredging represents a very localised,

MLA202000506 and MLA202000507 Draft HRA (2).pdf:8: dredge.

MLA202000506 and MLA202000507 Draft HRA (2).pdf:9: effects on the baseline conditions. Furthermore, the dredging

MLA202000506 and MLA202000507 Draft HRA (2).pdf:9: • Wigeon requiring ongoing maintenance dredging (but no change in the

MLA202000506 and MLA202000507 Draft HRA (2).pdf:10: • Shoveler overall maintenance dredging strategy for the Tees estuary as a

MLA202000506 and MLA202000507 Draft HRA (2).pdf:10: Furthermore, the dredging footprint in the main channel does not

MLA202000506 and MLA202000507 Draft HRA (2).pdf:11: With regard to water column –maintenance dredging routinely

MLA202000506 and MLA202000507 Draft HRA (2).pdf:11: application reports that the area has previously been dredged to

MLA202000506 and MLA202000507 Draft HRA (2).pdf:12: ongoing maintenance dredging (but no change in the overall

MLA202000506 and MLA202000507 Draft HRA (2).pdf:12: maintenance dredging strategy for the Tees estuary as a whole).

MLA202000506 and MLA202000507 Draft HRA (2).pdf:14: With regard to water column- the capital dredge will cause a

MLA202000506 and MLA202000507 Draft HRA (2).pdf:14:Removal of non- Bird Species. No There is a potential for the construction/dredge to impact prey

MLA202000506 and MLA202000507 Draft HRA (2).pdf:14:target species species of these bird species. Maintenance dredging is routinely

MLA202000506 and MLA202000507 Draft HRA (2).pdf:15: ongoing maintenance dredging (but no change in the overall

MLA202000506 and MLA202000507 Draft HRA (2).pdf:15: maintenance dredging strategy for the Tees estuary as a whole).

MLA202000506 and MLA202000507 Draft HRA (2).pdf:15: • Sandwich Tern (NB) maintenance dredging, movements of large commercial vessels

MLA202000506 and MLA202000507 Draft HRA (2).pdf:16: dredging, movements of large commercial vessels and land-side

MLA202000506 and MLA202000507 Draft HRA (2).pdf:16: to ongoing activities within the estuary (i.e. maintenance dredging

MLA202000506 and MLA202000507 Draft HRA (2).pdf:17: ongoing activities within the estuary (i.e. maintenance dredging

MLA202000506 and MLA202000507 Draft HRA (2).pdf:18:current) changes, caused by the proposed dredge. The occurrence of almost daily

MLA202000506 and MLA202000507 Draft HRA (2).pdf:18: maintenance dredging throughout the estuary suggests that

MLA202000506 and MLA202000507 Draft HRA (2).pdf:18: • Common Tern (B) suspended sediments during dredging represents a very localised,

MLA202000506 and MLA202000507 Draft HRA (2).pdf:18: Waterbird assemblage (NB) completion of the dredge. No effect on overall population level or

MLA202000506 and MLA202000507 Draft HRA (2).pdf:19: requiring ongoing maintenance dredging (but no change in the

MLA202000506 and MLA202000507 Draft HRA (2).pdf:19: overall maintenance dredging strategy for the Tees estuary as a

MLA202000506 and MLA202000507 Draft HRA (2).pdf:19:L/2017/00012/3 - Able Capital/Maintenance dredging (expires 01/03/2026) Yes – within the pSPA/partially within the SPA. The

MLA202000506 and MLA202000507 Draft HRA (2).pdf:20:MLA/2020/00073 Alternative use of dredged material This is in conjunction with this application, as dredge

MLA202000506 and MLA202000507 Draft HRA (2).pdf:20: dredged sediment will be reused as part of this project. works. The relevant compatible pressures are not

MLA202000506 and MLA202000507 Draft HRA (2).pdf:20:Hartlepool Approach Capital dredge to deepen, realign, widen and extend the length of Should the Hartlepool channel scheme coincide with the

MLA202000506 and MLA202000507 Draft HRA (2).pdf:20:Channel the approach channel. In addition to the proposed dredge (and proposed scheme, in-combination effects to the interest

MLA202000506 and MLA202000507 Draft HRA (2).pdf:21: associated disposal of dredged material), PDT is proposing to features of the SPA / Ramsar site could occur. The

MLA202000506 and MLA202000507 Draft HRA (2).pdf:21: following the proposed dredge.

MLA202000506 and MLA202000507 Draft HRA (2).pdf:21:Tees navigational channel The Tees Channel Dredge project involves a proposed Given the frequency, duration and long-term nature of

MLA202000506 and MLA202000507 Draft HRA (2).pdf:21: maintenance dredging within the Tees, this activity is

MLA202000506 and MLA202000507 Draft HRA (2).pdf:21: deepening could coincide with the capital dredging

MLA202000506 and MLA202000507 Draft HRA (2).pdf:21:Northern Gateway Container The NGCT scheme comprises capital dredging up to 4.8 million Should the NGCT scheme coincide with the proposed

MLA202000506 and MLA202000507 Draft HRA (2).pdf:21: channel, disposal of dredged material offshore, construction of a the SPA / Ramsar site could occur. The relevant

MLA202000506 and MLA202000507 Draft HRA (2).pdf:22:Scheme EA. The scheme will entail creating an extension to the existing proposed dredge area.

MLA202000506 and MLA202000507 Draft HRA (2).pdf:22: dredged material from within the river cell.

MLA202000506 and MLA202000507 Draft HRA (2).pdf:22: Should this scheme coincide with the dredging detailed in

MLA202000506 and MLA202000507 Draft HRA (2).pdf:22: This would include the need to ensure dredging activities

MLA202000506 and MLA202000507 Draft HRA (2).pdf:24: Visual disturbance Common redshank, (Non-Breeding) and dredging and disposal has “acceptable” limits for redshank and knot at

MLA202000506 and MLA202000507 Draft HRA (2).pdf:26:Changes in Sandwich tern, (Non-Breeding- Yes The capital dredging of the river Yes-

MLA202000506 and MLA202000507 Draft HRA (2).pdf:26:clarity) form. The plume effects arising form of dredging along the axis of the river

MLA202000506 and MLA202000507 Draft HRA (2).pdf:26: from the river dredging are rather than across it to ensure that, at any

MLA202000506 and MLA202000507 Draft HRA (2).pdf:26:transport • Shoveler point of dredging activity, followed

MLA202000506 and MLA202000507 Draft HRA (2).pdf:26: • Sanderling extent and reduction in • Dredging along the axis of the

MLA202000506 and MLA202000507 Draft HRA (2).pdf:26: hours. Since the dredging is a

MLA202000506 and MLA202000507 Draft HRA (2).pdf:26: Intertidal sand and muddy sand near-continuous operation, the capital dredging operations.

MLA202000506 and MLA202000507 Draft HRA (2).pdf:26: on the dredging activities

MLA202000506 and MLA202000507 Draft HRA (2).pdf:27:L/2017/00012/3 - Able Seaton Port Capital/Maintenance dredging (expires 01/03/2026) Yes – within the SPA. The maintenance dredge covers

MLA202000506 and MLA202000507 Draft HRA (2).pdf:27:7,8,9 and Terrc Basin) Above water noise Dredging in this area is longstanding. These works take

MLA202000506 and MLA202000507 Draft HRA (2).pdf:27:MLA/2020/00073 Alternative use of dredged material This is in conjunction with this application, as dredge

MLA202000506 and MLA202000507 Draft HRA (2).pdf:27: as the dredged sediment will be reused as part of this works.

MLA202000506 and MLA202000507 Draft HRA (2).pdf:28: proposed dredge (and associated disposal of dredged reductions, which have the potential to reduce the

MLA202000506 and MLA202000507 Draft HRA (2).pdf:28: Harbour. The underwater retaining wall is required to The effects of capital dredging on subtidal habitat are

MLA202000506 and MLA202000507 Draft HRA (2).pdf:28: undermined following the proposed dredge. conditions expected upon completion. The Hartlepool

MLA202000506 and MLA202000507 Draft HRA (2).pdf:28:Northern Gateway Container Terminal The NGCT scheme comprises capital dredging up to 4.8 Should the NGCT scheme coincide with the proposed

MLA202000506 and MLA202000507 Draft HRA (2).pdf:28: the approach channel, disposal of dredged material the SPA / Ramsar site could occur in the form of

MLA202000506 and MLA202000507 Draft HRA (2).pdf:28: The NGCT scheme comprises capital dredging up to 4.8 .

MLA202000506 and MLA202000507 Draft HRA (2).pdf:28: the approach channel, disposal of dredged material

MLA202000506 and MLA202000507 Draft HRA (2).pdf:29: consultation with the EA. The scheme will entail proposed dredge area.

MLA202000506 and MLA202000507 Draft HRA (2).pdf:29: dredged material from within the river cell. Should this scheme coincide with the dredging detailed in

MLA202000506 and MLA202000507 Draft HRA (2).pdf:30: This would include the need to ensure dredging activities

MLA202000506 and MLA202000507 Draft HRA (2).pdf:30: • Dredging along the axis of the River Tees will be undertaken to ensure sediment plumes are only occurring in half of the river during capital dredging

MLA202000506 and MLA202000507 Draft HRA (2).pdf:31: • A program of dredging works to be submitted in advance of Phase 2 dredging activities to reduce the in-combination impacts to the North Tees mud

20210121 MLA202000506 Tees South Bank Quay Phase I Benthic ecology + JPQC.pdf:1:8. In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of

20210121 MLA202000506 Tees South Bank Quay Phase I Benthic ecology + JPQC.pdf:1: dredged material, placement of rock in the berth pocket and construction and operation of a

20210121 MLA202000506 Tees South Bank Quay Phase I Benthic ecology + JPQC.pdf:3: of intertidal habitat due to the dredge/excavation works (Section 9.1.5.2). Notwithstanding that

20210121 MLA202000506 Tees South Bank Quay Phase I Benthic ecology + JPQC.pdf:3: result of habitat loss caused by dredging would be of moderate adverse significance (Section

EA MLA_2020_00506 v2 29 June 2021 OFFICIAL.pdf:1:DREDGING, OFFSHORE DISPOSAL OF DREDGED MATERIAL, PLACEMENT OF

EA MLA_2020_00506 v2 29 June 2021 OFFICIAL.pdf:1:The piling and dredging activities approved by this licence may not commence until such

EA MLA_2020_00506 v2 29 June 2021 OFFICIAL.pdf:1:The applicant wishes for there to be no restrictions to piling and dredging operations. A

EA MLA_2020_00506 v2 29 June 2021 OFFICIAL.pdf:2:being carried out, and this should be monitored prior to dredging activity and during

EA MLA_2020_00506 v2 29 June 2021 OFFICIAL.pdf:2:dredging activity at regular intervals. We would respectfully request that this is shared

EA MLA_2020_00506 v2 29 June 2021 OFFICIAL.pdf:2:the impacts of dredging activity in the Tees.

20210406 MLA202000506 Tees South Bank Phase 1 Request to review interim analysis results SEAL Advice FINAL.pdf:1: find my comments below in in my capacity as scientific and technical advisor on dredge and

20210406 MLA202000506 Tees South Bank Phase 1 Request to review interim analysis results SEAL Advice FINAL.pdf:1: in my capacity as scientific and technical advisor dredge and disposal (including sediment

20210406 MLA202000506 Tees South Bank Phase 1 Request to review interim analysis results SEAL Advice FINAL.pdf:2: 7. Capital dredging is anticipated to be required within part of the Tees Dock turning circle, within

20210406 MLA202000506 Tees South Bank Phase 1 Request to review interim analysis results SEAL Advice FINAL.pdf:2: dredge volume of 1,960,000 m3. The breakdown of this dredging is shown in Table 1.

20210406 MLA202000506 Tees South Bank Phase 1 Request to review interim analysis results SEAL Advice FINAL.pdf:2:Table 1. Proposed design dredge levels and volumes

20210406 MLA202000506 Tees South Bank Phase 1 Request to review interim analysis results SEAL Advice FINAL.pdf:2: Area Existing Maintained Proposed design Proposed Dredge Proposed total

20210406 MLA202000506 Tees South Bank Phase 1 Request to review interim analysis results SEAL Advice FINAL.pdf:2: dredge level (bCD) dredge level (bCD) Depth (m) dredge volume

20210406 MLA202000506 Tees South Bank Phase 1 Request to review interim analysis results SEAL Advice FINAL.pdf:2: dredge depths down to the maximum dredge depth, depending on the location, resulting in 155

20210406 MLA202000506 Tees South Bank Phase 1 Request to review interim analysis results SEAL Advice FINAL.pdf:2: - The dredge area tonnages need to be completed (cells D26-D31 on ‘application info’

20210406 MLA202000506 Tees South Bank Phase 1 Request to review interim analysis results SEAL Advice FINAL.pdf:2: - Dredge area needs to be completed (Column Q on ‘application info’ tab, and column I

20210406 MLA202000506 Tees South Bank Phase 1 Request to review interim analysis results SEAL Advice FINAL.pdf:4:19. Given the elevated levels of multiple determinands across the depth to be dredged, I recommend

210422 EA response to MMO ref MLA202000506.pdf:1: the quay dredge, one would be near to the eastern/ downstream side of

210422 EA response to MMO ref MLA202000506.pdf:1: the dredge and one would be near to the turning circle/ other area to be

210422 EA response to MMO ref MLA202000506.pdf:1: dredged.

210422 EA response to MMO ref MLA202000506.pdf:2: to the commencement of the dredging activity. This will provide more site

210422 EA response to MMO ref MLA202000506.pdf:2: to the commencement of the dredging activity. For the stop thresholds, we

EA_MLA2020005061_VAR_OFFICIAL200722.pdf:1:REQUEST IS TO ADD CUTTER SUCTION DREDGER TO THE LIST OF

EA_MLA2020005061_VAR_OFFICIAL200722.pdf:1:METHODS, THE INCREASE DREDGE LEVEL TO 11.5M BCD FROM 11M BCD

EA_MLA2020005061_VAR_OFFICIAL200722.pdf:1:AND TO MODIFY THE COORDINATES OF THE DREDGE AREA. SOUTH

EA_MLA2020005061_VAR_OFFICIAL200722.pdf:1:Prior to the commencement of any remedial dredging, a scheme detailing the

EA_MLA2020005061_VAR_OFFICIAL200722.pdf:1:methodology for dredging shall be submitted to and approved in writing by the

EA_MLA2020005061_VAR_OFFICIAL200722.pdf:1:Organisation. The remedial dredging scheme shall include, but not limited to, the

EA_MLA2020005061_VAR_OFFICIAL200722.pdf:1: • The method and equipment for any remedial dredging needed to remove

EA_MLA2020005061_VAR_OFFICIAL200722.pdf:1: material tested as over Cefas Action Level 2. If no remedial dredging is

EA_MLA2020005061_VAR_OFFICIAL200722.pdf:1:ecological potential. Navigation dredging and disposal have the potential to affect

EA_MLA2020005061_VAR_OFFICIAL200722.pdf:2:the water environment. Maintenance or capital dredging operation can have direct

EA_MLA2020005061_VAR_OFFICIAL200722.pdf:2:Dredging - Advice for Applicant

EA_MLA2020005061_VAR_OFFICIAL200722.pdf:2:The proposed dredging activity will need to comply fully with ‘Clearing the Waters’

EA_MLA2020005061_VAR_OFFICIAL200722.pdf:2:– A user guide for marine dredging activities and the WFD. Consideration should

EA_MLA2020005061_VAR_OFFICIAL200722.pdf:2:also be given to the beneficial reuse of dredged materials.

EA MLA_2020_00506 22 February 2021 OFFICIAL.pdf:1:DREDGING, OFFSHORE DISPOSAL OF DREDGED MATERIAL, PLACEMENT OF

EA MLA_2020_00506 22 February 2021 OFFICIAL.pdf:3:proposed dredging programme, the EIA assessment states this is predicted to be

EA MLA_2020_00506 22 February 2021 OFFICIAL.pdf:3:dredge activities were to happen concurrently. Please note the location of model point

EA MLA_2020_00506 22 February 2021 OFFICIAL.pdf:3:to the dredging activity, as a minimum, monitored every hour during the dredging activity.

EA MLA_2020_00506 22 February 2021 OFFICIAL.pdf:3:If a drop of 1m/g of dissolved oxygen is observed, than the dredging activity must

EA MLA_2020_00506 22 February 2021 OFFICIAL.pdf:3:We are aware the applicant would be against timing restrictions to the dredging

EA MLA_2020_00506 22 February 2021 OFFICIAL.pdf:3:schedule. We overall have concerns on the amount to be dredged in conjunction with

EA MLA_2020_00506 22 February 2021 OFFICIAL.pdf:3:other planned dredges in the estuary however the above condition would mitigate for

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:1:7. The proposed scheme comprises demolition, capital dredging, offshore disposal of dredged material

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2: for marine mammals are primarily associated with the capital and maintenance dredging, movement of

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2:11. Likewise, for fish, the primary potential impact considered is the proposed dredging activity. I am of the

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2: and also considers the potential effects of 24-hour dredging for both a fleeing and stationary marine

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2:14. The Hartlepool assessment concludes that noise levels for Trailer Suction Hopper Dredging (TSHD) are

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2: predicted to be higher than those for backhoe dredging. For a stationary animal and TSHD, the

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2:15. The potential impacts of auditory injury in marine mammals from cumulative exposure to dredging should

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2: not be dismissed. However, considering the location of the proposed dredging works, it is unlikely that a

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2: receptor would remain in close proximity of the dredging vessel (i.e. that particular stretch of river) for

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: the area during dredging activities”. Seal sands (a haul out site for harbour seal) is located in the near

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3:17. I believe that the risk of mortality from the cumulative exposure to dredging noise is likely to be very low.

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: dredging noise, but I am of the opinion that this risk (of significant impact) is likely to be low. Fish species

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: are unlikely to remain within the vicinity of the dredging operations for extended periods of time.

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: to fluctuating noise levels caused by passing vessels and almost daily maintenance dredging, which I

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: as long as dredging is ongoing (a period of approximately four months)”. Page 317 then states that “the

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: proposed dredging works be clarified?

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: applicant), the dredge/disposal cycles will run continuously during this period, each cycle time is

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: there are windows in which normal migratory patterns can occur during the dredging campaign. Noise

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: levels at the site will abate for the majority of each dredge/disposal cycle while the TSHD vessel

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: disturbance in the Tees as a result of the maintenance dredging activities and vessels. However, the

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: proposed dredging operations will add additional acoustic disturbance into the river, and there is a risk

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:4: unlikely that seals (or porpoise) would remain in close proximity to the dredging operations for extended

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:4:25. For fish, it is proposed to limit dredging to working within one side of the river at a time (along the axis of

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:4: the river, rather than dredging across the width of the river). This measure is implemented to reduce the

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:4: help to ensure that noise levels at the opposite side of the river from the dredger remain as low as possible

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:4: over a dredge/disposal cycle (although elevated noise levels will be detectable across the entire width of

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:5: immediately downstream) and the ongoing maintenance dredging. The EIA Report concludes that

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:5: various dredging campaigns, and I believe that the activities are going to have to be carefully managed

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:5: months of the year the proposed dredging operations for South Bank are expected to take place.

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:5: dredging operations at South Bank. Auditory injury from cumulative exposure to dredging should not be

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:6: level of anthropogenic noise, from vessel traffic and maintenance dredging operations.

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:6:44. Nevertheless, it is clear that there will be a lot of activity going on in the Tees, particularly various dredging

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:6: known what months of the year the proposed dredging operations for South Bank are expected to take

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:6:would all be removed to avoid issues arising during the subsequent capital dredge. It is proposed that the

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:Capital dredging:

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:Dredging is anticipated to be required within part of the Tees Dock turning circle, within parts of the existing

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:navigation channel and within areas not currently subject to maintenance dredging to create a berth pocket.

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:It is anticipated that dredging will be undertaken using a combination of a Trailing Suction Hopper Dredger

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:(TSHD) and a backhoe dredger. It is envisaged that up to three barges will be required to support with the

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:transport of sediment dredged using the backhoe dredger to the offshore disposal site.

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:of the proposed berth pocket. The berth pocket would need to dredged to a greater depth initially to allow

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:The Phase 1 quay wall would extend 90 m either side of the berth pocket to retain the dredged slopes back

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:The EIA has assessed the worst-case scenario of building the quay and dredging the channel in one

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:and capital dredging. The rock blanket would be installed following completion of the dredge. Piling would

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:1:6. The proposed scheme will comprise the following works: demolition, capital dredging, offshore

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:1: disposal of dredged material, construction and operation of a new quay wall and the installation of

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:2: I. Revised modelling of the plume that takes into account other dredging activity which may

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:2: II. Clarification on the proposed exact times (i.e. months) of dredging works so that the

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:2: dredging works outside the peak upstream migration season for salmon (July-August).

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:3: i. Changes in marine water quality (i.e. increased suspended sediment) due to dredging

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:3: ii. Entrainment of fish and fish eggs by dredging gear;

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:3: iii. Underwater noise during dredging;

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:3: ix. Change in maintenance dredging regime affecting supporting habitats and

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:4:Dredging activities in the river Tees

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:4:19. I recognise that PD Teesport (PDT) has undertaken regular maintenance dredging to maintain

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:4: navigation within the Tees estuary since 2005. Most dredging within the Tees occurs in the

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:4: approach channel and low-middle estuary using a trailing suction hopper dredger (TSHD)

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:4: Hartlepool for an average of 924,247m3 dredged from the Tees reaches and berths. A summary of

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:4: the maintenance dredged volumes (m³) by each reach from 2001 to 2019 is provided in Figure 2.

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:4: Figure 2. Summary of volumes (m3) dredged and deposited offshore during the period 2001 to 2019

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: be dredged from the Tees, resulting in sediment plumes. The effects of the plumes have been

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: modelled using a sediment dispersion model run for the entire four-month dredging period covering

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: all proposed dredging and disposal activities (See section 6 and Appendix 5 of document 4). Based

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: dredging will be localised, with the lateral extent of the plume across the river channel predicted to

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: maximum enhanced SSCs) from the four modelled dredging phases set out in Section 6, the

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: plume effects arising from dredging will be observed throughout the whole dredging continuous

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: low SSC from 0 to 8.5 mg/l. Modelling of the sediment plume during capital dredging indicates that

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: an increase in SSC of up to 350 mg/l is predicted in the direct vicinity of the dredging activity, falling

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: below 50 mg/l at a short distance from the area being dredged. Further, five water quality monitoring

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: of the proposed dredging works, showed increases in SSC above the baseline, up to 85 mg/l, as a

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: result of the ongoing dredging activities. Elevated SSC have been acknowledged to affect dissolved

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5:22. Additional dredging activities have also been proposed for nearby projects such as Northern

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: Gateway Container Terminal (NGCT) which, if consented, will include capital dredging using a

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: TSHD in Phase 1, and a Cutter Suction Dredger (CSD) and/or Backhoe Dredger (BD) in Phase 2.

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: Dredging for NGCT would be undertaken 24 hours a day for approx.120 weeks until 2028 equating

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: to the removal by dredging of up to 4.8 million m3 of material. NGCT has been included within the

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: and ongoing maintenance works. The applicant has recognised that ‘should two or more dredging

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: might increase the risk of barrier effects across the estuary preventing migration when dredging

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: measure proposed for South Bank and NGCT of dredging along one axis of the river at any one

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: separate dredging campaigns cannot be completely avoided if the campaigns are undertaken

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5:23. Taking into account the duration and timing (i.e. 24 hours of continuous operations) of dredging

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: arising from dredging at nearby projects such as NGCT, Anglo-American and maintenance

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:5: dredging, which may result in high SSC, turbidity and poor water quality. These impacts have the

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:6:24. I appreciate that the applicant has proposed limiting dredging to working on one side of the river at

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:6: simultaneous dredging operations are likely to cause an acoustic/physical barrier and behavioural

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:6: Action Plan enforced by the Environment Agency, due to the unknown start dates of the dredging

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:6: instance, the timing of the proposed dredging activities should take into account the peak migration

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:6: dredging proposed for NGCT and regular maintenance dredging (i.e. dredge material quantities,

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:6: measure of limiting dredging to one side of the river at a time and better determine the likelihood of

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:6:CHANGES IN MARINE WATER QUALITY DUE TO DREDGING ACTIVITY

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:6: dredging.

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:6: associated to regular maintenance dredging. However, migratory fish arriving on this side

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:7: that the predicted increase in SSC will only affect the vicinity of dredging activity (no more

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:7: than a few hundred meters from the site of dredging). However, as per comment 19, the

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:7: modelled dredging phases set out in Section 6, the maximum area affected by increased

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:7: proposed dredging activities (4-5 months), the worst-case situation would be that this period

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:7: be undertaken in long strips along the axis of the estuary rather than dredging across the

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:7: width of the river. This is to reduce both the extent and impact of the dredged plume, as

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:7: the dredging operation, as with other capital dredge operations in the Tees (e.g. Royal

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:7: fish to be able to move past the dredging activity.

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:7:29. As per my previous comments 18-21, dredging activities occurring simultaneously within the river

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:7:ENTRAINMENT OF FISH AND FISH EGGS BY DREDGING GEAR

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:8: dredging gear on fish species such as injury, mortality and displacement. However, these effects

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:8: the regular maintenance dredging undertaken, and that any level of entrainment would be of low

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:8: magnitude and limited to the dredge footprint. Therefore, no mitigation has been proposed.

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:8:UNDERWATER NOISE DURING DREDGING

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:8:32. The applicant has acknowledged (section 13.5.3) that underwater noise arising from the dredging

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:8: levels from backhoe dredging are considerably lower, and only significantly exceed background

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:8: barrier effect preventing migratory fish movements up/downstream, particularly if dredging is

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:8: to recommence once the dredging works cease.

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:8: maintenance dredging and dredging proposed for other projects (e.g. NGCT), in combination with

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:8: adverse impacts to fish (see Annex 3 for evidence based potential impacts on fish from dredging).

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:8: works, I recommend that the applicant considers the feasibility of undertaking dredging works

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:9:38. As construction works (i.e. dredging) are proposed to take place 24 hours a day, it is my

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:11:48. As per my previous comments (18-22), there is potential for dredging proposed for South Bank

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:11: quay to occur concurrently with routine maintenance dredging, and with dredging by other projects

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:14: 4. Capital dredging to deepen the norther half of the Tees Dock turning circle and create a berth

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:14: to be dredge is predicted to be approx. 1,8Mm3 which would be undertaken in two phases

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:14: It is anticipated that dredging will be undertaken using a combination of a Trailing Suction Hopper

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:14: Dredger (TSHD) and a backhoe dredger (BD) and will comprise an approximate duration of 19

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:14: 6. Offshore disposal of dredge material at Tees Bay C (TY 150).

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:14:Annex 3. Potential impacts on marine and migratory fish from dredging and disposal of

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:15: head of the dredger.

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:15: vii. Potential disturbance caused by underwater noise from the dredging process.

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:15:Settlement of sediment around areas of dredging and disposal can have the following impacts:

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:15: iv. Exposure to contaminants contained within dredged sediment.

20210115 MLA202000506 South Bank Quay-phase 1 - Fisheries advice MG GE + JPQC.pdf:15: vi. Resuspension of sediments resulting from dredging can smother organisms and hinder

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:1: No dredging not covered under statutory harbour

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:1: that only 1 dredge campaign is taking place at this

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:1: time. No other dredging will take place on the River

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:1: dredging operation during 1st July to 31st August

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:1: monitored prior to the dredging activity, as a

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:1: 5.2.9 dredging activity. If a drop of 1m/g of dissolved

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:1: oxygen is observed, than the dredging activity must

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2: Dredging must be limited to working on one side of plumes to one side of the estuary

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:in Anglian on proposed Harwich Agitation dredging trial, August 2020) .

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:Given the difficulties in avoiding dredging during the months of July and August, further correspondence

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:maintenance dredging would be undertaken during these months if dredging for the South Bank project

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:was to proceed. This led to an additional Condition 5.2.9 to monitor DO in these months with dredging to

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:However, it is considered likely that agreement from PDT to cease maintenance dredging in the Tees

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:maintenance and non-maintenance dredging to proceed during the months of July and August (i.e. it seeks

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:area of the estuary impacted by any sediment plumes resulting from dredging activities therefore this

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:dredging associated with the South Bank project that sediment suspended within the dredging plumes will

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:3:fall to the riverbed, either soon after disturbance or spillage during the dredging operation (for coarser-

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:3:Figure 2-1 Maximum enhanced suspended solids concentrations (near surface layer) arising from dredging activities during Phase

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:3:alongside the fact that a significant component of the dredged material is geological sediment which is

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:4:of the proposed scheme with other dredging projects on marine water quality, specifically SSC. To

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:4:maximum concentrations of suspended solids for all projects are predicted to be localised to the dredging

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:4:activity and quickly disperse with distance from the dredger. Additionally, as outlined for South Bank, peaks

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:4:to be remote even if dredging occurred concurrently.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:4:relating to only dredging one side of the channel at a time would remove the risk of a barrier covering the

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:4:tidal/riverine flows. Navigational safety would also restrict dredging on opposite sides of the estuary.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:5:environmental turbidity limits for dredging’ (CEDA 2020) has been reviewed and simplified into the

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:5: and the dredging plan.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:5:Predicted impacts associated with the dredging are outlined in Section 2.1 above. This indicates that

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:5:dredge plumes tend to be narrow and follow tidal flows thus indicating dredging on one side of the estuary

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:5:which the dredging would occur indicates that the ‘Tees’ is high status for this parameter.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:6:sensitive to dredging related sediment plumes.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:7: the sensitive receptors and the dredging plan

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:7:If dredging is to be undertaken in July and August, it is proposed that two monitoring buoys are installed

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:7:at least one week prior to dredging commencing to recover baseline readings. Two monitoring buoys are

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:8:The monitoring buoys will remain in place during the dredging and for one week after the end of dredging

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:8:is considered that one week of monitoring post completion of the dredge is adequate to illustrate a return

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:8:dredging contractor for monitoring against the trigger values as outlined in Section 2.2.4 and implementing

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:9:baseline (collected prior to dredging commencing). If both buoys show an increase in 50mg/l over baseline

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:9: • Adjust the overflow position of the dredger;

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:9:If the difference falls below 50mg/l for one or both of the buoys then the dredging can recommence without

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10:that dredging temporarily pauses for a period of six hours (a tidal cycle). If SSC do not return to below

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10:1000mg/l after six hours, it is proposed that dredging re-commences rather than wait for levels to return to

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10:All recorded data will be collated and summarised in a short report alongside dredging activity logs. The

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10: • Dredging activity logs.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10:The full report will be provided within two months of dredging activities being completed.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10: 1. CEDA (2020). Assessing and Evaluating Environmental Turbidity Limits for Dredging online.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10: Available at: http://www.dredging.org/media/ceda/org/documents/resources/cedaonline/2020-05-

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10: 10EAN. ECMAS advice to PSO team in Anglian on proposed Harwich Agitation dredging trial.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:11: sediment impacts on fish and shellfish with relation to dredging activities in estuaries. North

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:1: Organisation (MMO) at least 10 weeks prior to the commencement of any dredging activities

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:1: (condition 5.2.7) which will only be granted providing only 1 dredge campaign is taking place at

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:1: a time (condition 5.2.8). Additionally, if permission is granted to dredge during 1st July to 31st

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:1: August, dissolved oxygen levels must be monitored prior the dredging activity (condition 5.2.9)

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:1: and dredging must be limited to working on one side of the river at a time (condition 5.2.10).

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:2: maintenance and non-maintenance dredging to proceed during the months of July and August

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:2: dredging works during key migratory periods for salmonids (i.e., from late March to August

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:2: dredging and piling activities occurring simultaneously within the Tees estuary as the

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:2: a request from Royal Haskoning to conduct dredging during the seasonal restriction

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:2: boundaries of the dredge footprint. Cefas fisheries advisors provided comments on the

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:2: dredging and piling operations occurring in the Tees. In this regard, based on the strong

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:2: likelihood and risk of the proposed dredging/piling activities to overlap with the peak salmon

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:2: may prevent or delay migration, I cannot support either the dredging works being conducted

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:3: vi. However, whilst I do not support dredging activities to be undertaken within the Tees during

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:3: ongoing dredging/piling works in the Tees, any monitoring programme should be agreed by

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:3: (see Figure 1) at least one week prior to dredging commencing to recover baseline readings.

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:3: volumes of dredging currently occurring in the Tees, either simultaneously or in sequence, the

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:4: samples. The monitoring buoys will remain in place during the dredging and for one week after

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:4: dredging has been completed.

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:4: between the two monitoring buoys and their determined baseline (collected prior to dredging

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:4: • Adjust the overflow position of the dredger;

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:5: If the difference falls below 50mg/l for one or both of the buoys, then the dredging can

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:5: is proposed that dredging temporarily pauses for a period of six hours (a tidal cycle). If SSC do

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:5: not return to below 1000mg/l after six hours, it is proposed that dredging re-commences rather

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:5: dredging activity logs. This data will be shared with the EA upon completion of the licensed

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:5: of the data being issued. The full report will be provided within two months of dredging activities

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:5: (e.g., EA experts/MMO) to determine if the reported levels of DO and SSC from dredging

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:5: dredging operations (with reported peaks up to 350 mg/l, see comment 23 below), regarding

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:5: management strategies, it is my understanding that dredging will carry on (see comment 16),

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:5: an unacceptable risk as behavioural injury from cumulative exposure to dredging should not be

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:6: However, it was recognised in the EIA (section 6.5.2) that SSC during dredging operations can

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:6: (i.e., maximum enhanced SSCs and riverbed thickness) from the four modelled dredging

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:6: been acknowledged that suspended sediment will fall to the riverbed within the dredged areas

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:6: from where it will be re-dredged to achieve the necessary bed depths, implying additional

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:6: volumes of dredging occurring in sequence. I also note that the EIA report concludes that the

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:7: plume effects arising from dredging will be observed continuously, throughout the whole

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:7: dredging period of 4 months.

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:7:24. Furthermore, cumulative effects were only considered to occur if all proposed dredging works

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:7: regarding cumulative effects resulting from the proposed dredging works at Tees South Bank

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:7: with other construction-related and maintenance dredging within the Tees, as even if they do

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:7: not coincide, then there is still the prospect of very large volumes of dredging occurring in

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:7: sequence, with the stated consequence of an increase in maintenance dredging in the future.

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:7: extracted in such a small channel, the large number of ongoing dredging operations occurring

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:7: salmonids during the peak migratory season, the fact that the proposed dredging operations

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:7:26. In my opinion, due to the number of dredging activities occurring in the Tees at the moment,

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:7: including regular maintenance dredging and other works undertaken under the Harbour

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:7: Revision Order (HRO) held by PDT, careful consideration should be given to dredging/piling

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:7:volumes of dredging currently occurring in the Tees and based on our current knowledge and the

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:9:Condition 5.2.7 states that ‘The dredging activities approved by this licence may not commence

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:9:be submitted to MMO for written confirmation prior to dredging works commencing.

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:9:Reason: To monitor impacts to water quality during dredging.

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:9:Condition 5.2.8 states that ‘No dredging not covered under statutory harbour authority powers can

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:9:has been reached that only 1 dredge campaign is taking place at this time. No other dredging will

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:9:Condition 5.2.9 states that ‘If permission is granted by the MMO to undertake dredging operation

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:9:dredging activity, as a minimum, monitored every hour during the dredging activity. If a drop of 1m/g

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:9:of dissolved oxygen is observed, than the dredging activity must temporarily pause for a period of

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:9:Condition 5.2.10 states that ‘Dredging must be limited to working on one side of the estuary

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:10:UWN from piling or SSC from dredging) whilst waiting in refuges areas. The effects of suspended

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:10: head of the dredger.

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:11: vi. Potential disturbance caused by underwater noise from the dredging process.

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:11:Settlement of sediment around areas of dredging and disposal can have the following impacts:

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:11: iv. Exposure to contaminants contained within dredged sediment.

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:11: vi. Resuspension of sediments resulting from dredging can smother organisms and hinder

20220518 MLA202000506 L2021003331Tees South Bank (phase 1) Monitoring Plan Fisheries advice FINAL.pdf:13:Annex 4. Combined maximum zone of influence from stages 1-4 of dredging

MLA_2020_00506_1 South Bank Wharf Variation Response FINAL 392938.pdf:1:Consultation: Disposal of dredged material, Navigational dredging (capital), Other deposits,

MLA_2020_00506_1 South Bank Wharf Variation Response FINAL 392938.pdf:2:comprises an additional dredge depth of 0.5m (11 metres to 11.5 metres) and change of dredging area

MLA_2020_00506_1 South Bank Wharf Variation Response FINAL 392938.pdf:2:additional capital dredging. Additionally, please note our position has not changed regarding our views

MLA_2020_00506_1 South Bank Wharf Variation Response FINAL 392938.pdf:2:and dredging method as proposed by this variation request. Please note in our advice dated

MLA_2020_00506_1 South Bank Wharf Variation Response FINAL 392938.pdf:2:impacts to the designated sites, such as any dredge monitoring reports available.

MLA_2020_00506_1 South Bank Wharf Variation Response FINAL 392938.pdf:3:the lowest levels of proposed dredging (-11.5m CD for all areas and 15.6m CD for the proposed berth

MLA_2020_00506_1 South Bank Wharf Variation Response FINAL 392938.pdf:3:Phase 2 Dredging

MLA_2020_00506_1 South Bank Wharf Variation Response FINAL 392938.pdf:3:We are aware that a marine licence has also been issued for the Phase 2 dredging works for the South

MLA_2020_00506_1 South Bank Wharf Variation Response FINAL 392938.pdf:3:Maintenance Dredge Protocol

MLA_2020_00506_1 South Bank Wharf Variation Response FINAL 392938.pdf:3:We acknowledge this variation application is for capital dredging, however we take this opportunity to

MLA_2020_00506_1 South Bank Wharf Variation Response FINAL 392938.pdf:3:advise that consideration is given towards any future required maintenance dredging and would

MLA_2020_00506_1 South Bank Wharf Variation Response FINAL 392938.pdf:4:encourage the applicants to ensure that any information on dredging activity is made available to

MLA_2020_00506_1 South Bank Wharf Variation Response FINAL 392938.pdf:4:support future updates of the Maintenance Dredge Protocol in the Tees. This allows for a holistic

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:1:Application (Disposal of dredged material, Navigational dredging (capital), Other deposits,

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:1:  Cross-sectional channel dredge information and side slope analysis, particularly in relation to

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:1:  Impacts to waterbird interest features at North Tees Mudflat from dredging works; and

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:3:Capital dredging the assumed side slopes to be created as part of the proposed dredge, no direct

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:3: the proposed dredge. Natural England requires more detailed reassurance that

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:3: the capital dredge immediately adjacent to the North Tees Mudflat will not impact

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:3: increased risk of slumping. This includes the implications of the capital dredge

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:4:Capital dredging dredging in front of the new quay. It is stated within the EIA that the complete loss

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:4:General: barrier We welcome the commitment to limit TSHD and backhoe dredging to working

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:4: Dredging must be limited to working on one side of the estuary channel at a time.

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:5: 12.5.2 We welcome the commitment to limit TSHD and backhoe dredging to working

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:6:dredging. to tern foraging within the estuary channel.

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:6: Dredging must be limited to working on one side of the estuary channel at a time.

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:6:12.5.4 At present, the effects of visual and noise disturbance to waterbirds from dredging

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:6: To assess whether there should be a seasonal and/or tidal restriction to dredging

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:6: to the likely duration of dredging activities (particularly TSHD) occurring within

338486 - 338489, NE formal response to SBW MLA, 29.01.21 (1).pdf:8:  Tees navigational channel deepening (maintenance dredge);

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:1: and observations below in my capacity as scientific and technical advisor on dredge and

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:1: in my capacity as scientific and technical advisor for dredge and disposal. The response

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:1: electrical substation), capital dredging (to deepen the northern half of the Tees Dock turning

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:1: disposal of dredged sediments and construction and operation of a new quay (to be set back

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:1:7. The applicant proposes to conduct a capital dredge to remove approximately 1,800,000 m³ of

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:1: latter of which will also be dredged to form a deeper berth pocket. There is a variation of

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:1: existing depths across the dredge areas, ranging from 5.7 to 13 m below Chart Datum (bCD),

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:2: and the target dredge depth ranges from 11 m bCD for most areas, to 15.6 m bCD for the

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:2: used to remove soft and hard material (mudstone) respectively. Once dredged, the applicant

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:2: intends to dispose of dredged material at Tees Bay C (TY150) disposal site.

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:2: advice for dredge and disposal. Further, there is only one EIA report for both phases, which

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:2: capital dredged material but has received quantities of maintenance material in some years.

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:3:15. The data presented for the NGCT project partially overlap with the proposed dredge areas,

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:3:18. General dredging best practice is referenced throughout the EIA. The practices specified

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:4: analysis, repeat sampling analysis, modified dredge methods or alternative disposal may be

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:4: assessment. The applicant correctly identifies the various dredging operations planned in the

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:4: cumulative impact to ecological receptors from the disposal of dredged sediment offshore.

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:4: assessment as to the capacity for the site to receive this combined quantity of dredged

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:5: whole evidence base relative to the area to be dredged is provided for review.

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:5:36. The evidence presented in consistent with dredge and disposal operations of a similar scale,

MLA202000506 and MLA202000507 Draft HRA.pdf:1: To carry out any form of dredging within the UK marine licensing area (whether or not involving the removal of any material from

MLA202000506 and MLA202000507 Draft HRA.pdf:1:Description of The proposed scheme comprises demolition, capital dredging, offshore disposal of dredged material, placement of rock in the

MLA202000506 and MLA202000507 Draft HRA.pdf:2: • Capital dredging of approximately 1,800,000m3 of marine sediments with offshore disposal into the Tees Bay C disposal

MLA202000506 and MLA202000507 Draft HRA.pdf:2: site. It is proposed that dredging is undertaken using a trailing suction hopper dredger (TSHD) and a backhoe dredger.

MLA202000506 and MLA202000507 Draft HRA.pdf:5: - Construction of port and harbour structures/capital dredging.

MLA202000506 and MLA202000507 Draft HRA.pdf:5: Teesmouth and Cleveland Coast SPA/ RAMSAR: Construction of port and harbour structures/Capital Dredging

MLA202000506 and MLA202000507 Draft HRA.pdf:6:Visual disturbance dredging, movements of large commercial vessels and land-side

MLA202000506 and MLA202000507 Draft HRA.pdf:6: waterbirds from dredging activities.

MLA202000506 and MLA202000507 Draft HRA.pdf:7: • Intertidal biogenic reef: mussel beds No other supporting habitats were identified. The proposed dredge

MLA202000506 and MLA202000507 Draft HRA.pdf:7: created as part of the proposed dredge, no direct or indirect impact

MLA202000506 and MLA202000507 Draft HRA.pdf:7: • Redshank (NB) dredging, movements of large commercial vessels and land-side

MLA202000506 and MLA202000507 Draft HRA.pdf:8: including regular maintenance dredging, movements of large

MLA202000506 and MLA202000507 Draft HRA.pdf:8:suspended solids by the proposed dredge. The occurrence of almost daily

MLA202000506 and MLA202000507 Draft HRA.pdf:8: • Sandwich Tern (NB) maintenance dredging throughout the estuary suggests that

MLA202000506 and MLA202000507 Draft HRA.pdf:8: • Common Tern (B) suspended sediments during dredging represents a very localised,

MLA202000506 and MLA202000507 Draft HRA.pdf:8: dredge.

MLA202000506 and MLA202000507 Draft HRA.pdf:9: effects on the baseline conditions. Furthermore, the dredging

MLA202000506 and MLA202000507 Draft HRA.pdf:9: • Wigeon requiring ongoing maintenance dredging (but no change in the

MLA202000506 and MLA202000507 Draft HRA.pdf:9: • Gadwall overall maintenance dredging strategy for the Tees estuary as a

MLA202000506 and MLA202000507 Draft HRA.pdf:10: Furthermore, the dredging footprint in the main channel does not

MLA202000506 and MLA202000507 Draft HRA.pdf:11: With regard to water column –maintenance dredging routinely

MLA202000506 and MLA202000507 Draft HRA.pdf:11: application reports that the area has previously been dredged to

MLA202000506 and MLA202000507 Draft HRA.pdf:12: ongoing maintenance dredging (but no change in the overall

MLA202000506 and MLA202000507 Draft HRA.pdf:12: maintenance dredging strategy for the Tees estuary as a whole).

MLA202000506 and MLA202000507 Draft HRA.pdf:13: With regard to water column- the capital dredge will cause a

MLA202000506 and MLA202000507 Draft HRA.pdf:14:Removal of non- Bird Species. No There is a potential for the construction/dredge to impact prey

MLA202000506 and MLA202000507 Draft HRA.pdf:14:target species species of these bird species. Maintenance dredging is routinely

MLA202000506 and MLA202000507 Draft HRA.pdf:15: ongoing maintenance dredging (but no change in the overall

MLA202000506 and MLA202000507 Draft HRA.pdf:15: maintenance dredging strategy for the Tees estuary as a whole).

MLA202000506 and MLA202000507 Draft HRA.pdf:15: • Sandwich Tern (NB) maintenance dredging, movements of large commercial vessels

MLA202000506 and MLA202000507 Draft HRA.pdf:16: dredging, movements of large commercial vessels and land-side

MLA202000506 and MLA202000507 Draft HRA.pdf:16: to ongoing activities within the estuary (i.e. maintenance dredging

MLA202000506 and MLA202000507 Draft HRA.pdf:17: ongoing activities within the estuary (i.e. maintenance dredging

MLA202000506 and MLA202000507 Draft HRA.pdf:17:current) changes, caused by the proposed dredge. The occurrence of almost daily

MLA202000506 and MLA202000507 Draft HRA.pdf:17: maintenance dredging throughout the estuary suggests that

MLA202000506 and MLA202000507 Draft HRA.pdf:18: • Common Tern (B) suspended sediments during dredging represents a very localised,

MLA202000506 and MLA202000507 Draft HRA.pdf:18:Waterbird assemblage (NB) completion of the dredge. No effect on overall population level or

MLA202000506 and MLA202000507 Draft HRA.pdf:18: requiring ongoing maintenance dredging (but no change in the

MLA202000506 and MLA202000507 Draft HRA.pdf:18: overall maintenance dredging strategy for the Tees estuary as a

MLA202000506 and MLA202000507 Draft HRA.pdf:19:L/2017/00012/3 - Able Capital/Maintenance dredging (expires 01/03/2026) Yes – within the pSPA/partially within the SPA. The

MLA202000506 and MLA202000507 Draft HRA.pdf:19:MLA/2020/00073 Alternative use of dredged material This is in conjunction with this application, as dredge

MLA202000506 and MLA202000507 Draft HRA.pdf:20: dredged sediment will be reused as part of this project. considered further here.

MLA202000506 and MLA202000507 Draft HRA.pdf:20:Hartlepool Approach Capital dredge to deepen, realign, widen and extend the length of Should the Hartlepool channel scheme coincide with the

MLA202000506 and MLA202000507 Draft HRA.pdf:20:Channel the approach channel. In addition to the proposed dredge (and proposed scheme, in-combination effects to the interest

MLA202000506 and MLA202000507 Draft HRA.pdf:20: associated disposal of dredged material), PDT is proposing to features of the SPA / Ramsar site could occur. The

MLA202000506 and MLA202000507 Draft HRA.pdf:21: following the proposed dredge.

MLA202000506 and MLA202000507 Draft HRA.pdf:21:Tees navigational channel The Tees Channel Dredge project involves a proposed Given the frequency, duration and long-term nature of

MLA202000506 and MLA202000507 Draft HRA.pdf:21: maintenance dredging within the Tees, this activity is

MLA202000506 and MLA202000507 Draft HRA.pdf:21: deepening could coincide with the capital dredging

MLA202000506 and MLA202000507 Draft HRA.pdf:21:Northern Gateway Container The NGCT scheme comprises capital dredging up to 4.8 million Should the NGCT scheme coincide with the proposed

MLA202000506 and MLA202000507 Draft HRA.pdf:21: channel, disposal of dredged material offshore, construction of a the SPA / Ramsar site could occur. The relevant

MLA202000506 and MLA202000507 Draft HRA.pdf:23: Visual disturbance Common redshank, (Non-Breeding) and dredging and disposal has “acceptable” limits for redshank and knot at

MLA202000506 and MLA202000507 Draft HRA.pdf:25:Changes in Sandwich tern, (Non-Breeding- Yes The capital dredging of the river Yes-

MLA202000506 and MLA202000507 Draft HRA.pdf:25:clarity) form. The plume effects arising form of dredging along the axis of the river

MLA202000506 and MLA202000507 Draft HRA.pdf:25: from the river dredging are rather than across it to ensure that, at any

MLA202000506 and MLA202000507 Draft HRA.pdf:25:transport • Shoveler point of dredging activity, followed

MLA202000506 and MLA202000507 Draft HRA.pdf:25: • Sanderling extent and reduction in • Dredging along the axis of the

MLA202000506 and MLA202000507 Draft HRA.pdf:25: hours. Since the dredging is a

MLA202000506 and MLA202000507 Draft HRA.pdf:25: Intertidal sand and muddy sand near-continuous operation, the capital dredging operations.

MLA202000506 and MLA202000507 Draft HRA.pdf:26: on the dredging activities

MLA202000506 and MLA202000507 Draft HRA.pdf:26:L/2017/00012/3 - Able Seaton Port Capital/Maintenance dredging (expires 01/03/2026) Yes – within the SPA. The maintenance dredge covers

MLA202000506 and MLA202000507 Draft HRA.pdf:26:7,8,9 and Terrc Basin) Above water noise Dredging in this area is longstanding. These works take

MLA202000506 and MLA202000507 Draft HRA.pdf:26:MLA/2020/00073 Alternative use of dredged material This is in conjunction with this application, as dredge

MLA202000506 and MLA202000507 Draft HRA.pdf:26: as the dredged sediment will be reused as part of this works.

MLA202000506 and MLA202000507 Draft HRA.pdf:27: proposed dredge (and associated disposal of dredged reductions, which have the potential to reduce the

MLA202000506 and MLA202000507 Draft HRA.pdf:27: Harbour. The underwater retaining wall is required to The effects of capital dredging on subtidal habitat are

MLA202000506 and MLA202000507 Draft HRA.pdf:27: undermined following the proposed dredge. conditions expected upon completion. The Hartlepool

MLA202000506 and MLA202000507 Draft HRA.pdf:28:Northern Gateway Container Terminal The NGCT scheme comprises capital dredging up to 4.8 Should the NGCT scheme coincide with the proposed

MLA202000506 and MLA202000507 Draft HRA.pdf:28: the approach channel, disposal of dredged material the SPA / Ramsar site could occur in the form of

MLA202000506 and MLA202000507 Draft HRA.pdf:28: The NGCT scheme comprises capital dredging up to 4.8 .

MLA202000506 and MLA202000507 Draft HRA.pdf:28: the approach channel, disposal of dredged material

MLA202000506 and MLA202000507 Draft HRA.pdf:29: • Dredging along the axis of the River Tees will be undertaken to ensure sediment plumes are only occurring in half of the river during capital dredging

MLA.2020.00506.1 South Bank Quay Phase 1 Variation Request.pdf:1: Significant quantities of dredged material have been disposed of at the Tees Bay C site and

MLA.2020.00506.1 South Bank Quay Phase 1 Variation Request.pdf:1: Given the location of the activity, and that dredging operations will be minimal following

MLA.2020.00506.1 South Bank Quay Phase 1 Variation Request.pdf:1: initial capital dredge it will have little impact on fish stocks.

MLA.2020.00506.1 South Bank Quay Phase 1 Variation Request.pdf:2: Consider ensuring that any sampling undertaken should cover the increase in dredging

20210603 MLA2020005067 Tees South Bank Quay Supplementary Report Review Fisheries advice MG GE + JP.pdf:1: dredging, offshore disposal of dredged material and construction and operation of a new quay to

20210603 MLA2020005067 Tees South Bank Quay Supplementary Report Review Fisheries advice MG GE + JP.pdf:3: impacts arising from the dredging works proposed under this consultation. My review of the

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:1: regulatory requirements for dredge and disposal operations. The response pertains to those

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:1: and storage/distribution activities. The applicant proposes to conduct a capital dredge to

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:2: the existing navigation channel, the latter of which will also be dredged to form a deeper berth

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:2: pocket. Existing depths vary across the dredge areas, ranging from 5.7 to 13 m below Chart

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:2: Datum (bCD), and the target dredge depth ranges from 11 m bCD for most areas, to 15.6 m

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:2: bCD for the berth pocket only. The applicant anticipates that trailer suction hopper dredging

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:2: respectively. Once dredged, the applicant intends to dispose of dredged material at Tees Bay

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:2: Charlotte Clarke, 27th May 2020). Based on the applicant’s initial forecasting of likely dredge

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:2: are an accurate representation of the dredge area.

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:2:1 “5.2. Dredged material may be exempted from the testing… if any of the criteria below are met:

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:2:OSPAR Guidelines for the management of dredged material OSPAR 98/14/1-E, Annex 43, 1998.

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:3:Table 1. Proposed design dredge levels and volumes

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:3: Area Existing Maintained Proposed design Proposed Dredge Proposed total

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:3: dredge level (bCD) dredge level (bCD) Depth (m) dredge volume

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:3:Dredged material quality

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:3: the whole of the dredge material is not complete until clarification is provided by the applicant

20210615 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA _ SEAL Advice Followup+SJB.pdf:3:15. The results generally depict a broad range of PBDE levels throughout the dredge areas, with

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:1:DEVELOPMENT CORPORATION FOR THE DISPOSAL OF CAPITAL DREDGING FOR SOUTH

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:1: regulatory requirements for dredge and disposal operations. The response pertains to those

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:1: licence dredge boundary. Dated 29th April 2022.

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:1: capital dredging and offshore disposal of dredge material, rock placement, and construction

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:1: for the use of Cutter Suction Dredger;

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:1: • A change to the dredge levels specified within the description of licensed activity 2.1

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:1: • A revision to the coordinates of some of the dredging boundaries as detailed in licence

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2:MMO Question 1. Is the proposed inclusion of cutter suction dredger appropriate

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2:The indicative durations of the proposed dredging works are detailed in Section 3.6.1 of the EIA Report.

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2:The proposed dredge can be summarised as follows:

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2: • Removal of soft material above -5m bCD using a backhoe dredger (approximately four weeks).

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2: • Removal of soft material below -5m bCD using a backhoe dredger and a TSHD (approximately four

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2: • Removal of soft material in the turning circle using a backhoe dredger and a TSHD (approximately

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2: • Removal of hard material using a backhoe dredger (approximately 10 weeks).

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2:The proposed dredging activities are therefore predicted to take in the order of five months to complete.

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2:9. I have no objection to the inclusion of cutter suction dredging to these activities.

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2:dredge level?

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2:10. In regard to the quantity, the total dredge volume for L/2021/00333 was 902,000 m3 was revised

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2: to 1,235,000 m3, an increase of 333,000 m3. OSPAR recommendation for dredge volumes of

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2: the sampling must also ensure that the samples are representative of the dredge area, please

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2:11. The variation request is for a change to the dredge levels specified within the description of

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2: the capital dredging of the Tees Dock Turning Circle, and of the Channel and Berth.

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2: dredged to 11.5 mbcd. The Berth pocket will be dredged to 15,6 m bcd whilst other areas were

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2: to be dredged to 11 m bcd now 11.5 m bcd.

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2: This exclusion area is directly south of the area labelled to allow for remedial dredging of

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:2: contaminated material (Drawing copied in annex1 figure1 and Google Earth image of dredge

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:3: from this additional area, the co-ordinates of the area, anticipated dredge depth, together with

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:3: new dredge area would be useful. Changes to the material type and quantity for offshore

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:3: states that no additional dredge volume is required (Document reference in paragraph 5).

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:3: in accretion and therefore maintenance dredging. I would recommend that a specialist advisor

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:3: in regard to the changes in dredge depths proposed.

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:3:18. Further sampling and analysis of the area required for remedial dredging of contaminated

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:3:19. It would be useful for the applicant to provide a clear outline of the dredge areas and expected

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:3:20. I have no objection to the use of cutter suction dredging to be added to the list for use for these

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:4:dredge boundary.

20220608 MLA2020005061 L20121003331 Cefas advice Final.pdf:4:Figure 2. Plot of excluded area for dredging as indicated on the proposed dredge area provided by the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:3:3.6 Capital dredging of marine sediments and excavation of soils / landside materials within

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:3:3.8 Disposal of dredged material 17

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:7:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL 470

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:7:26.2 Modelling the dispersion and deposition of capital dredged material and effect on water

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:8:28.5 Detailed assessment – C2 Capital dredging 522

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:9:In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:9:dredge and disposal activities).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:9: which covers the potential zone of influence of both the dredge and disposal activities.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:10: P roposedDredg

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:13:(90m wide) and the associated dredging requirements. Consultation with PD Ports’ Harbour Master during

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:15:along the river bank at South Bank (including an electrical substation), capital dredging (to deepen the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:15:berth pocket), offshore disposal of dredged sediments and construction and operation of a new quay (to be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:16:would all be removed to avoid issues arising during the subsequent capital dredge. It is proposed that the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:17: BERTH POCKET DREDGING AREA BERTH POCKET DREDGING AREA

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:17: CHANNEL DREDGING AREA CHANNEL DREDGING AREA

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:17: DREDGING AREA

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:22:3.6 Capital dredging of marine sediments and excavation of soils /

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:22:Drawing PC1084-RHD-SB-EN-DR-EV-1113 below shows the proposed dredge footprint. For the purposes

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:22:of this EIA, a dredge envelope has been assessed (Figure 1.1). As shown on the drawing, dredging is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:22:dredging to create a berth pocket. The Tees Dock turning circle and areas of navigation channel are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:22:dredged to a depth of 15.6m bCD (maintained at a depth of 13.0m bCD). The berth pocket is proposed to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:22:be dredged to 15.6m bCD initially in order to allow for the installation of a 2m thick rock blanket (discussed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:22:area that is currently partly land and estuarine. There would, therefore, be a requirement for dredging of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:22:berth pocket. The proposed scheme (and consequently the dredging requirements) has been designed to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:22:A summary of the proposed design levels and dredge volumes for marine sediments is detailed in Section

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:22:3.6.1 Volume of marine sediments to be dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:22:The total dredge volume for marine sediments is predicted to be approximately 1,800,000m3. As detailed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:22:in Table 3.2, the dredge is proposed to be undertaken in two phases to match the anticipated phased

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:22:construction of the quay however the assessment undertaken within this EIA assumes that the dredging is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:22:dredged material is anticipated to comprise geological material (i.e. mudstone) (approximately 340,000m3),

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:22:would be dredged to 11m bCD with the exception of the berth pocket which will be dredged to 15.6m bCD.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:23: AREA DREDGED

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:23: DREDGE TO -11.0mCD

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:23: DREDGE TO -15.6mCD

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:23: DREDGED TO -11mCD MUDFLATS

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:23: AREA DREDGED

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:23: AREA DREDGED

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:23: DREDGED TO -11mCD

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:23: PHASE 1 UPSTREAM AREA DREDGED

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:23: AREA DREDGED

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:23: DREDGING PLAN

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:24:Table 3.2 Proposed volumes of marine sediments to be dredged (excluding over-dredge volumes)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:24: Material classification Phase 1 dredge volume (m3) Phase 2 dredge volume (m3) Total dredge volume (m3)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:24:It is anticipated that dredging will be undertaken using a combination of a Trailing Suction Hopper Dredger

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:24:(TSHD) and a backhoe dredger. It is envisaged that up to three barges will be required to support with the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:24:transport of sediment dredged using the backhoe dredger to the offshore disposal site. It is assumed that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:24:a TSHD would be used to dredge soft material and it has been assumed for the purposes of assessment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:24:It is expected that the backhoe dredger would be used for both the near surface soft material and the hard

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:24:material (mudstone). For the purposes of the assessment, it has been assumed that the dredge process

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:24: • Removal of soft material above -5m bCD using a backhoe dredger (approximately four weeks).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:24: • Removal of soft material below -5m bCD using a backhoe dredger and a TSHD (approximately four

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:24: • Removal of soft material in the turning circle using a backhoe dredger and a TSHD (approximately

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:24: • Removal of hard material using a backhoe dredger (approximately 10 weeks).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:24:destabilising the quay wall. The implication is that the berth pocket would need to dredged to a greater

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:25:3.8 Disposal of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:25:There are two active disposal sites that potentially could accept dredged material from the Tees estuary:

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:25:capital dredged material but has received quantities of maintenance material in some years. Tees Bay A

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:25:For the purposes of assessment and the marine licence application, it has been assumed that all dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:25:The Phase 1 quay wall would extend 90m either side of the berth pocket to retain the dredged slopes back

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:25:assessed the worst-case scenario of building the quay and dredging the channel in one phase. However,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:25:and capital dredging (see Drawing PC1084-RHD-SB-DN-DR-C-1388). The rock blanket would be installed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:25:following completion of the dredge.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:26: DREDGE TO Newcastle upon Tyne, NE1 4EE

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:26: DREDGE LEVEL.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:26: CLAY DREDGE LEVEL CLAY

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:27: This assumes all dredging plant

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:27: Capital dredging 2 months 3 months 5 months are working at full capacity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:27:Whilst capital dredging is taking place, there is potential for PDT to be undertaking maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:27: • Dredging plant

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:27: o Backhoe dredger

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:27: o Barges to transport material from the backhoe dredger to the offshore disposal site.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:28:result of capital and maintenance dredging, as well as INNS being introduced or spread from ship ballast

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:30:known to cross underneath the Tees estuary. As dredging is not proposed to be undertaken above the pipe

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:32:Alternative dredging plant

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:32:There is likely to be a requirement to utilise a number of different types of dredger depending on the nature

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:32:of the material being dredged. Therefore, for different parts of the dredging it will be necessary to use a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:32:TSHD or backhoe. The environmental implications of using these dredgers have been assessed and no

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:33:Approach channel and berthing pocket dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:33:The proposed dredged depth in the navigation channel has been chosen to maximise the tidal window to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:33:3.15.3 Alternative uses of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:33:uses for the dredged arisings, with disposal at sea being the least preferred option (in accordance with the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:33:reclamation projects. The alternative options that have been considered for the disposal of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:33:The proposed dredge is predicted to give rise to boulder clay, sand and silts. Sand and boulder clay could

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:33:STDC is not aware of any construction projects within the local area that require the use of dredged material,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:33:continue to remain open to the re-use of dredged material within construction projects.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:33:(possibly doubling as little tern nesting islands) could be created using the dredged material from Hartlepool

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:33:suitable locations for the re-use of dredged sediment; three were located adjacent to the South Gare

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:34:scheme by beneficially re-using dredged material would be welcomed. It is considered that such beneficial

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:34:re-use of dredged material could also represent a possible option for the South Bank scheme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:34:STDC will continue to investigate the option of creating bird islands using dredged material, possibly linking

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:34:Tees (or any beneficial use of dredged material in the marine environment) would require a separate marine

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:34:licence application to deposit dredged material, or potentially a variation to the marine licence for the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:35: • Dredging;

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:35: • Capital dredging (removal activity).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:35: • Offshore disposal of dredged material (deposit activity).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:35:The proposed dredge footprint is located predominantly within an area subject to maintenance dredging by

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:35:of the existing maintenance dredge footprint, and therefore a variation to the licence held by PDT is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:35:envisaged to increase the source area of maintenance dredged material following construction of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:38:Options for the disposal of waste (i.e. the material to be dredged from the approach channel, turning circle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:38:investigated in accordance with the waste hierarchy. Possible alternative options for dredged material have

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:39: • Policy NE-DD-3 – proposals for the disposal of dredged material must demonstrate that they have

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:52: Proposals for the disposal of dredged material must demonstrate that they have been

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:52: assessed against the waste hierarchy. Where there is the need to identify new dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:53: The Environment Agency’s response to RCBC during scoping consultation listed three Impacts of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:53: • Impacts of dredging on the tidal prism of the estuary, and therefore the extent addressed in Section

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:53:Agency (letter • In addition to the initial capital dredge, consideration of the impacts associated impacts associated

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:53:dated 14th August with the continued maintenance of the dredged area in future years should be with maintenance

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:53:2020) assessed too, in terms of the continued impact to fish, as well as water quality. dredging is made in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:53: • it is likely that dredging activity will need to take into account the protection of Section 6.6.4.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:53: during critical migration periods. This would entail limiting dredging activity to water quality are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:53:dredging and offshore disposal activities. For this reason, the study area shown in Figure 6.1 has been

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:54:2005 Maintenance dredging baseline document. ABPmer, 2005

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:54: Tees maintenance dredging baseline Royal Haskoning, 2007b Documents the maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:55: 2019a and 2020a) maintenance dredging and disposal for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:55: QEII Berth Development – Environmental information about maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:55: dredging operations required for this

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:57: Maintenance dredging baseline

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:57: Documents the maintenance dredging material regularly

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:57: Tees maintenance dredging baseline removed from the Tees estuary, and the potential

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:57: document. implications of maintenance dredging and disposal for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:57:2009 Royal Haskoning, 2009 dredging regimes and materials arising from above and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:57: possible effects from the proposed dredging operations

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:58:In addition, an analysis of historical data, including dredge and disposal volumes and land reclamation from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:60: predict movement of suspended sediment from the proposed dredging and disposal activities by

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:60: was run for the entire dredging and disposal period under astronomic tidal and daily mean fluvial

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:60:the harbour and marina berths. All of these locations require dredging to maintain a safe navigable depth

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:62:of reaches require maintenance dredging to remove both sands and silts. The volume of sediments dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:62:dredged from the river mouth and navigation approach channels within Tees Bay, with river silts mainly

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:62:dredged from within the berths and river channel further upstream in the Tees estuary.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:62:to allow bypassing of sediment, but observed accumulations upstream, and a 24% reduction in the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:63:(Newlyn) (7.15m below CD). As a result of training works and deepening by dredging, the current depth at

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:63:the mouth is about double this natural level. Dredging and training works have occurred since the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:63:establishment of the first dredged channel of 4.3m from Middlesbrough Docks to the sea after 1853.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:63:only notable project undertaken since that time has been the dredging and re-strengthening of No.1 Quay

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:63:sediments) which is offset by maintenance dredging and disposal at offshore licenced disposal site Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:63:PDT is required by the Tees and Hartlepool Port Authority Act 1966 to publish dredge depths; the published

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:63:Admiralty Charts show the maximum licensed depths for the channel and berths. A summary of the dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:63:14.1m below CD were originally dredged to a deeper depth.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:63:access. The berth pocket within Tees Dock has been dredged to a depth of 14.5m below CD, with the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:63:general dock area dredged to 10.9m below CD.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:84:induced currents, vessel induced forces and re-suspension by dredging operations. These last two were

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:85: • Marine input: Comparison of the above figures with the present knowledge of the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:85:Dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:85:As part of this responsibility, PDT must maintain the advertised dredge depths within the defined areas

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:85:dredging in the thirteen reaches of the river shown in Figure 6.29 (as well as in berths within the Tees and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:85:within Tees Bay). Maintenance dredging practices have remained unchanged since 2005.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:85: Figure 6.29 Maintenance dredging reaches within the River Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:86:Most dredging within the Tees occurs in the approach channel and low-middle estuary in order to maintain

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:86:access to berth pockets and impounded docks. TSHDs are currently used for the majority of the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:86:dredgers have active bottom door offloading systems.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:86:PDT also operates its own 11m plough to supplement ongoing suction dredging operations through the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:86:removal of isolated high spots on the riverbed, primarily in frontages or confined areas. Plough dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:86:dredgings requiring disposal to sea.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:86:A summary of the maintenance dredged volumes (m³) by each reach from 2001 to 2019 is provided in Table

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:86:6.15 and shown in Figure 6.30. Data on dredging was obtained from PDT and extends the time series

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:86:originally presented in Royal Haskoning (2008) from 2001 to 2019. No dredging has been required within

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:86:Reach 0 during the reporting period. Note that these data also include maintenance dredging volumes from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:86: Volume of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:86:Figure 6.30 Summary of volumes (m3) dredged and deposited offshore during the period 2001 to 2019

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:86:The total volume of maintenance dredged material has decreased below the average annual volume for the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:86:Over the 19-year period, the average volume maintenance dredged from the Tees reaches is 740,266m3,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:87:Table 6.15 Summary of the total volumes of dredged material disposal (m3) from 2001 to 2019

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:89:Maintenance dredge material (between 2001 and 2018) comprised around 180,000m3 of mud, mostly found

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:89:A review of the dredged sediment quality data is presented in Section 7.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:89:general, Tees Bay A (TY160) is used for the disposal of maintenance dredge arisings while Tees Bay C

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:89:(TY150) is used for capital dredge arisings. Tees Bay B (TY110) and Tees Bay Foreshore (TY170) are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:89: dredged material. Some 1999, associated with the construction of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:89: 54 42.600N 00 58.600W maintenance dredging has been downstream Ro-Ro berths. Typical annual

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:90:Figure 6.31 Location of offshore maintenance and capital dredge disposal sites

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:90:6.5.2 Capital dredging and offshore disposal of dredged sediments

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:90:Capital dredging is required to: (i) create a berth pocket adjacent to the new quay; (ii) deepen the river

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91:pocket, creating a finished depth of 13.6m below CD. Dredging of the channel and berthing pocket will yield

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91:In total, approximately 1,800,000m3 of material will be dredged from the areas described over an

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91:as ‘soft’ material) and Mercia Mudstone (classed as ‘hard’ material). Dredging will be undertaken using a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91:Each year, between 25 – 30 million tonnes (wet weight) of dredged marine sediments from ports, harbours

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91:dredged from the proposed scheme will be taken to the Tees Bay C licensed offshore disposal site, some

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91:The capital dredging within the river, using TSHD and BHD, and the disposal activities at the licensed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91:modelling of the sediment dispersion associated with the dredging and disposal activities, as well as the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91:and run for the entire four month duration covering all proposed dredging and disposal activities. Wave

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91:disturbance effects have been included. The dredging methods, schedule and sediment release settings

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91:movement of dredgers and transport barges (including dredging, sailing, disposal and downtime) such that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91:sediment releases have been made near continuously throughout the dredging operations (except for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91:allowed periods of downtime) from along the centre line of the dredged areas, running along the axis of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91:The overall dredging and disposal operations may be considered as four stages in the following sequence:

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91: • Stage 1: BHD working to dredge the upper soft material (above -5m CD) in the berthing pocket and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91: • Stage 2: BHD and TSHD working in parallel to dredge the middle soft material (below -5m CD) in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91: • Stage 3: BHD working to dredge the bottom hard material in the berthing pocket and river channel

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91: • Stage 4: BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:91:Results from the sediment dispersion modelling are discussed in turn for the dredging and disposal activities.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:92: throughout the entire four-month period covered by the dredging and disposal simulations, but only

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:92: extents of enhancement in SSC from any stage of the dredging or disposal operations during the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:92: relevant stage of the dredging programme. It is important to note that this type of figure does not

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:92: become affected by a plume at some point during the dredging or disposal activities (in some areas

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:92:Dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:92:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:92:end of the dredging transect to the north-eastern end.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:92:Peak concentrations from dredging are always local to the point of disturbance from dredging at the riverbed,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:92:on timing of release with respect to the phase of the tide and location of dredging within the berthing pocket

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:92:release from the south-western corner of the dredging transect during the ebb phase (Plot A) and flood

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:92:phase (Plot D) of the tide when the release is towards the north-eastern end of the dredging transect.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:92:When the dredger is at the south-western end of the transect, the maximum spatial extent of the plume on

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:92:Middlesbrough Dock. When the dredger is at the north-eastern end of the transect, the extent of the plume

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:93:Figure 6.32 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:93:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:94:Figure 6.33 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:94:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:95:Figure 6.34 (Plot C) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:95:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:96:Figure 6.35 (Plot D) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:96:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:96:In order to determine a maximum ‘zone of influence’ from Stage 1 of the dredging activities, the maximum

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:96:values of enhancement in SSC from any phase of the dredging operations during Stage 1 have been plotted

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:96:release points along the dredging transect at the proposed scheme site. Further upstream and downstream

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:96:of the areas directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a short distance

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:96:from the point of dredging, and at the peripheries below 20mg/l) before merging with low background

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:97:Figure 6.36 Maximum enhanced SSCs arising from dredging activities during Stage 1 of the capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:97:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:97:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:97:time, moving from the south-western end of each of two parallel dredging transects to the north-eastern

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:97:from the two dredger types, as show in Figures 6.37 and 6.38 (Plot A and Plot B show releases from the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:97:south-western and north-eastern ends of the two parallel dredging transects respectively). However, the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:98:Figure 6.37 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 2 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:98:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:99:Figure 6.38 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 2 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:99:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:99:The maximum ‘zone of influence’ from Stage 2 of the dredging activities is shown in Figure 6.39 (please

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:99:note the earlier caution in interpreting this type of figure). This shows that during Stage 2 of the dredging,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:99:becomes wider; and (iii) at times two plumes are created by the in-parallel dredging activities. Despite these

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:99:release points along the dredging transects at the proposed scheme site. Further upstream and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:99:downstream of the areas directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:99:short distance from the point of dredging, and at the peripheries below 20mg/l) before merging with low

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:100:Figure 6.2 Maximum enhanced SSCs arising from dredging activities during Stage 2 of the capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:100:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:100:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:100:end of the dredging transect to the north-eastern end.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:100:of the dredging transect during the ebb phase (Plot A) and flood phase (Plot B) of the tide. Similar results

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:100:is towards the north-eastern end of the dredging transect. It can be seen that the maximum SSC values

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:100:and the spatial extents of the plume arising from Stage 3 of the dredging are much lower than those

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:100:of dredging is notably lower.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:101:Figure 6.40 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:101:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:102:Figure 6.41 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:102:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:103:Figure 6.42 (Plot C) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:103:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:104:Figure 6.43 (Plot D) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:104:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:104:The maximum ‘zone of influence’ from Stage 3 of the dredging activities is shown in Figure 6.44 (please

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:104:note the earlier caution in interpreting this type of figure). This shows that during Stage 3 of the dredging,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:104:during both Stages 1 and 2 of the dredging (note the slight plume shown in the mid channel is a remnant of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:104:the Stage 2 dredging, which has not fully dissipated before Stage 3 commences). During Stage 3, the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:105:Figure 6.44 Maximum enhanced SSCs arising from dredging activities during Stage 3 of the capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:105:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:105:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:105:end of each of two parallel dredging transects to the north-eastern end.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:105:Peak concentrations from dredging are always local to the point of disturbance from dredging at the riverbed,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:105:times in the dredging cycle, SSC values can become enhanced by typically 10 to 20mg/l between the point

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:106:Figure 6.45 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 4 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:106:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:107:Figure 6.46 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 4 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:107:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:107:The maximum ‘zone of influence’ from Stage 4 of the dredging activities is shown in Figure 6.47 (please

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:107:note the earlier caution in interpreting this type of figure). This shows that during Stage 4 of the dredging,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:107:stages, the maximum SSC concentrations remain local to the point of dredging within the turning circle (up

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:107:to a few hundred mg/l). Further upstream and downstream of the areas directly dredged, the SSC

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:107:enhancement drops markedly (typically below 50mg/l a short distance from the point of dredging, and at the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:108:Figure 6.47 Maximum enhanced SSCs arising from dredging activities during Stage 4 of the capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:108:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:108:The sediment plumes that arise from the four stages of the dredging could potentially affect areas of riverbed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:108:of influence’ from Stages 1 - 4 inclusive of the dredging activities has been plotted in Figure 6.48 for the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:108:that during the predicted four months of dredging, all individual or coalesced plume effects are confined to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:108:Furthermore, all plumes associated with dredging of the berthing pocket and river channel in the vicinity of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:108:whilst all plumes associated with dredging of the turning circle are confined to the left bank (north of centre

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:109:Figure 6.3 Maximum enhanced SSCs (near-bed layer) arising from dredging activities during Stages 1 -

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:109:4 inclusive of the capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:110:Figure 6.49 Maximum enhanced SSCs (near-surface layer) arising from dredging activities during Stages

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:110:1 - 4 inclusive of the capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:110:Sediment suspended within the dredging plumes will fall to the riverbed, either soon after disturbance or

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:110:spillage occurring during the dredging operation (for coarser-grained sediment fractions), or at a point in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:110:by this deposition. It can be seen that much of the sediment falls to the bed within the dredged areas (from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:110:where it will be re-dredged to achieve the necessary bed depths), whilst the deposition that occurs in other

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:111:Figure 6.50 Maximum riverbed thickness change due to sediment deposition arising from dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:111:activities during Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:111: would be affected by the zone of influence of the dredging operations].

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:112:appreciable extent, with peak enhancements of between 15 and 85 mg/l during Stage 2 of the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:112:programme (Figure 6.52). Whilst Stage 1 of the dredging also causes some enhancement in SSC at point

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:112:elevations in SSC drop rapidly after each dredging plume has dispersed, and return to baseline levels at

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:112:points of downtime or between successive dredging stages. There are no significant effects noted at the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:112:water quality sampling points during Stage 3 of the dredging and only negligible effects for a short duration

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:112:a very low value (6mm) throughout the entire dredging programme (Figure 6.53) and in reality some of this

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:112:material will become re-suspended by tidal currents or dredged during maintenance campaigns of the river

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:112:At the mudflat monitoring points, it is only during Stage 4 of the dredging that any discernible effects are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:112:At the navigation monitoring points on the north bank, it is only during Stage 4 of the dredging that any

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:112:At the navigation monitoring points on the south bank, it is throughout Stages 1 and 2 of the dredging that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:112:Stages 3 and 4 of the dredging, only negligible effects are noted, equivalent to variations within the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:113:re-suspended by tidal currents or will be removed during maintenance dredging campaigns of the river

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:118:is licensed for the disposal of dredged sediment and is routinely monitored as part of a national programme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:118:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:118:The above cycle is repeated throughout all disposal events associated with Stage 1 of the dredging,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:119:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:120:dredging, the following descriptions focus on where particular aspects of subsequent stages differ from the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:120:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:120:TSHD. The pattern of dispersion following discharge of the BHD-dredged material is as described for Stage

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:120:cessation of TSHD discharge) the subsequent BHD-dredged material disposal is commenced at a common

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:121:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:122:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:123:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:124:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:125:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:126:dredging programme has been plotted in Figure 6.64 for the near-bed layer of the water column (please

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:127:inclusive of the capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:128:event during Stage 1 of the capital dredging programme – local scale

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:129:event during Stage 1 of the capital dredging programme – wider scale

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:131:The river dredging and offshore disposal activities will both cause plumes of sediment to form close to the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:131:During dredging, there will be a release of sediment particles from the deliberate physical disturbance to the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:131:riverbed and, more significantly, from overflow when dredged material is loaded into the dredger’s hopper

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:131:(for TSHD) or the transport barge (for BHD). Such releases will be ongoing through each dredging cycle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:131:until the dredging activity ceases due to downtime (e.g. adverse weather, vessel maintenance) or at

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:131:scheduled breaks between stages of dredging activity. During offshore disposal, a single hopper load will

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:131:Once a plume is generated, the highest SSC values will be recorded at the point of river dredging or offshore

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:131:During some stages of the dredging and disposal activities, most notably when both TSHD and BHD are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:132:The plume effects arising from the river dredging are characterised by a short-lived localised increase in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:132:SSC by a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial extent

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:132:and reduction in concentration over following hours. Since the dredging is a near-continuous operation, the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:132:extents during the four different stages. During Stages 1-3 the dredging-related plume effects will be largely

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:132:Dock and Tees Dock. During Stage 4 the dredging-related plume effects will be largely confined to the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:132:and the Oil Terminal. Other than within the dredged areas, sediment deposition on the riverbed will be of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:132:occurs in the river channel or at jetties, it will subsequently be dredged as part of ongoing maintenance

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:132:dredging regimes, whilst material deposited back into the newly dredged areas will be re-dredged during

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:132:Overall, the changes in SSC and sediment deposition arising from the river dredging and offshore disposal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:133:dredging to the Tees Dock turning circle and approach channel and to create a berth pocket.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:140: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:140: dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:140: deposition will require periodic dredging to maintain the design depths.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:that the increase in mean tidal prism as a result of the new quay’s set-back alignment and dredging of part

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:6.6.4 Maintenance dredging and offshore disposal of dredged sediments

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:In order to provide an estimate of the present annual average maintenance dredging undertaken in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:the proposed new quay), it can be assumed that the affected area covers approximately half of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:reach 6 and approximately one-third of dredging reach 5 (these ‘dredging reaches’ are shown in the earlier

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:Between 2001 and 2019 inclusive, the average annual maintenance dredging in reach 5 was 3,585m3 and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:maintenance dredging is evenly located through each dredging reach so that the spatial scaling described

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:maintenance dredging is likely to be due to the low levels of suspended sediment measured in this reach of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:the river. By far the greatest contributions to the overall annual maintenance dredging total come from close

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:to the barrage in dredging reaches 1-3 inclusive or towards the estuary mouth in dredging reaches 8-11

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:inclusive. All non-contaminated material from maintenance dredging is usually taken to the Tees Bay A

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:a requirement for more material to become from this local reach dredged annually. Recognising this, a 10%

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:increase in annual maintenance dredging requirement may be a reasonable assumption recogising the low

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:baseline SSCs in this reach. Even under this scenario, the maintenance dredging from this reach local to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:the new quay will still yield a very low overall contribution to the net annual maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:requirements from the estuary as a whole. Therefore the potential increase in maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:141:dredging and offshore disposal regimes.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:143: Mitigation measures with regard to dredging may be required to manage

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:143: reductions. Such measures would entail limiting dredging to certain

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:143: proposed dredge on water and sediment quality are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:143: Dredging has the potential to cause negative impacts on the water

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:143: with the proposed dredge are detailed in Section 9

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:143: The proposed dredging plant has been selected

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:143: encountered during the dredge, as well as the plant

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:143: The applicant should consider the (dredging) methodology to be used,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:143: which has been used for previous capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:143: the disposal of dredged material and the timing of works.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:143: to be used, disposal of dredged material and timing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:144: As detailed in Section 3, the dredged material is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:144: dredged material previously and it can accept the total proposed amount

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:144: dispose of capital dredged sediment. Impacts

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:144: of dredged material.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:144: Due to the quantity of material proposed to be dredged, it is advised that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:144: of dredged material are presented.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:144:are predicted to occur (e.g. sediment plumes generated during capital dredging and effects on tidal currents

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:144: • Cefas Guideline Action Levels for the disposal of dredged material (Cefas, 2000); and,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:144:The Action Levels are used as part of a ‘weight of evidence’ approach to assessing the suitability of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:146:losses from dredging equipment and concentrations of contaminants within the sediments to be dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:147:impacts associated with the proposed offshore disposal of dredged material are considered in Section 26,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:147:proposed new quay at South Bank. There is however a degree of overlap between the dredge footprint for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:148: D2 Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:152:that found in 2006. The MMO has recently confirmed that the sediment to be dredged from the NGCT

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:153:13 surface samples from within and adjacent to the proposed dredge footprint for the NGCT scheme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:154: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:156:across the proposed dredge footprint. Samples will be recovered at the surface and at 1m intervals at each

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:156:of the 25 positions to the proposed dredge depth, or until geological mudstone is encountered beforehand

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:156:undertake maintenance dredging of the river to maintain the advertised dredge depths, with mid-licence

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:156:dredge disposal licence (to ensure that the maintenance dredged material remains suitable for offshore

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:157:7.5.1 Dispersion and redistribution of sediment during capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:157:Capital dredging would result in the creation of sediment plumes. To consider the potential extent and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:157:model MIKE3-HD and run for the four-month period over which dredging is likely to occur. The simulations

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:157:also accounted for the movement of dredgers and transport barges (including dredging, sailing, disposal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:157:and downtime) and four ‘stages’ of dredging (which would occur in sequence) were modelled to allow for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:157: • Stage 1: BHD working to dredge the upper soft material in the berthing pocket and river channel.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:157: • Stage 2: BHD and TSHD working in parallel to dredge the middle soft material in the berthing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:157: • Stage 3: BHD working to dredge the bottom hard material in the berthing pocket and river

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:157: • Stage 4: BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:157:the figure that the largest concentrations are local to the dredger and typically reach around 100 to 200mg/l.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:157:dredgers. At some points in the cycle, areas of these initially separate plumes combine as they move

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:157:The maximum concentrations and the spatial extents of the plume arising from Stage 3 of the dredging are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:157:and the production rate of dredging is notably lower. Figure 7.5 shows an example plume during Stage 3

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:157:dredging. Plots for the different tidal conditions are presented in Section 6.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:157:Again, peak concentrations close to the dredger are shown in the plume modelling output. On the ebb

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:158:Figure 7. 3 Plume of suspended sediment concentrations arising from dredging activities during Stage 2

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:158:(release from south-western ends of the two parallel dredging transects)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:159:Figure 7. 4 Plume arising from dredging activities during Stage 1 of the capital dredge (release from the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:159:south-western corner of the dredging transect during the ebb phase)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:160:Figure 7. 5 Plume of suspended sediment concentrations arising from dredging activities during Stage

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:160:3 (release from the south-western corner of the dredging transect during the ebb phase)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:161:Figure 7.6 Plume of enhanced suspended sediment concentrations arising from dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:162:Stage 2 of the proposed dredging schedule (when the BHD and TSHD would be working in parallel to dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:162:the proposed capital dredging works either do not cause elevations at the water quality monitoring points or

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:162:will be exceedances over baseline conditions throughout Stage 2 of the dredging schedule (as noted above,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:162:a period of approximately four weeks within the approximately four month dredging programme). The effect

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:162:7.5.2 Effects on water quality physical parameters during capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:162:The relatively limited nature of the plume extents predicted for the proposed capital dredging indicates that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:162:Additionally, a significant component of the dredged material is likely to be geological sediment, which is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:162:only for the duration of the dredge (approximately four months) and reversible. As a result, the magnitude

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:163:7.5.3 Remobilisation of contamination during capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:163:undertaken to inform whether maintenance dredging within a dock in Dover Harbour could give rise to EQS

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:163:estimates of sediment losses from dredging equipment and concentrations of contaminants within the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:163:sediments to be dredged to provide an indication of the amount of contamination that could be released into

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:164:Table 7.9 Summary of calculations undertaken for potential water column effects within the Tees estuary at low water (based on removal of 15,000m3 of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:164: Calculated loss of sediment derived using indicative values for the mass of sediment resuspended per m 3 of dredged material in CIRIA guidance (John et al., 1999) in kg/m3. Worst case S-Factor for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:164: MAC EQS Maximum Allowable Concentration. Used given the fact that dredging is not continuous as opposed to annual average EQS which averages samples collected over a year.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:166: • A relatively large proportion of the total volume of dredged material is anticipated to comprise

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:166: the dredge area.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:166: • The daily dredge volume is likely to be less than that accounted for due to stoppages associated

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:166: • The calculation is based on loss from a TSHD whereas a considerable component of the dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:166: will be undertaken with a backhoe dredger which has a lower production rate and therefore

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:166:weeks during Stage 2 of the proposed dredging programme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:168:7.6.1 Dispersion and redistribution of sediment during maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:168:increase in deposition rates and hence a requirement for more material to be dredged from this local reach

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:168:annually (see Section 6 for more information). A 10% increase in annual maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:168:However, the majority of material removed during the weekly maintenance dredging campaigns undertaken

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:168:net annual maintenance dredging requirement from the estuary as a whole. Therefore the potential increase

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:168:in maintenance dredging requirement is not expected to be significant and would be managed within existing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:168:maintenance dredging and offshore disposal regimes.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:168:dredging operations is predicted to be very low. Given the sensitivity of the Tees estuary is considered to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:191: dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:191: • Impacts on marine ecology from increased suspended sediment during capital dredging and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:191: smothering as a result of dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:191: • Impacts on marine communities due to changes in the maintenance dredge regime.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:191:from invasive species, through activities such as maintenance dredging, shipping ballast water exchange,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:194: dredging, can have a large effect upon habitats such as intertidal muds

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:195:The majority of the proposed dredge footprint is located within the subtidal zone. However, given the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:195:proposals to locate the quay in the riverbank (i.e. on existing land), dredging and excavation in front of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:199: would be indirectly affected (e.g. through sediment deposition during capital dredging).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:199: a 5mm cod end, with the trawls evenly distributed across the dredge area. Fish, shrimp and other

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:199:between the dredge footprint for the two schemes, specifically at Tees Dock turning circle. Results from the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:200: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:206:PDT would continue to undertake maintenance dredging of the river to maintain the advertised dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:207:9.5.1 Direct loss of habitat due to demolition of existing structures and dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:207:9.5.1.2 Capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:207:The proposed capital dredging would result in direct impacts to existing areas of intertidal and subtidal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:207:habitat that lie within the proposed dredge footprint, which are certain to occur.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:207:It is recognised that the proposed dredge footprint is within close proximity to the North Tees mudflat, which

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:207:the assumed side slopes to be created as part of the proposed dredge, no direct or indirect impact to this

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:207:The impact on the subtidal from the proposed dredging activities within the existing channel and part of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:207:is expected to recover following the dredging activities being carried out. However, in the short term, the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:207:benthic community would be removed from areas where dredging will be carried out.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:208:However, the capital dredging that will take place to create the berth pocket, and the rock blanket that will

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:208:wall during operation is estimated to be 5ha. The area of subtidal to be disturbed by the dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:208:dredging. As mentioned in Section 9.4.4, as there was no clear dominance of a single species, information

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:208:dredging, recruiting from the surrounding population within the year (Diaz-Castaneda et al., 1989), although

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:208:disturbance/substratum loss (i.e. from maintenance dredging). Based on these, MarLIN reports a medium

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:208:The benthic community is expected to be somewhat sensitive to physical habitat loss from the dredging of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:209:overall sensitivity of high has been assigned on a conservative basis. The dredging activities will result in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:209:dredging activities, the magnitude of this impact on the benthic community and habitat is considered to be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:209:as a result of habitat loss caused by dredging would be of moderate adverse significance.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:209:the Tees estuary which could be directly impacted by the proposed dredging activity (MarLIN, 2020).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:209:Some of the mudflat that will be lost as a result of the proposed dredge / excavation is classified as Priority

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:209:nature of the habitats within the Tees. Although the loss of the intertidal due to the dredge / excavation

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:210:It is recognised that the proposed dredge is a key component of the proposed scheme, and as such the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:210:dredging has been minimised as far as possible, within the constraint of delivering a development that meets

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:210:9.5.2 Effects of increased suspended sediment concentrations during dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:210:Dredging of approximately 1,800,000m3 of material will be required for the proposed scheme, over half of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:210:which will be for the creation of the berth pocket. Approximately 155,000m3 of this will be dredging of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:210:intertidal (defined as between Mean Low Water and Mean High Water). The proposed dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:210:as a result of dredging (at a level exceeding the respective EQSs of relevant contaminants) (Section 7.5.3).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:210:resuspended sediment which does not contain elevations beyond Action Level 2). The dredged sediment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:210:In general, sediment plumes induced by dredging are considered to pose only a limited risk to water quality

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:210:accommodate an increased oxygen demand, particularly where dredging takes place in open sea or

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:210:dredging periods. The sediment plume generated by dredging would likely be dispersed by tidal currents

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:210:away from the dredging location. The dispersion would either be upstream on the flood tide or downstream

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:211:For both types of dredger (backhoe and TSHD), peak suspended solids concentrations are predicted in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:211:immediate vicinity of the dredger. Sediment plume modelling predicts different plume extents and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:211:suspended sediment concentrations depending on the stage of dredging (as described in Section 6). In all

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:211:cases, the sediment plume is predicted to be very narrow within the river, with the phase of dredging with

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:211:the highest concentrations predicted to be 100-200 mg/L within the vicinity of the dredger, reducing to 10-

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:211:All plumes associated with different stages of dredging in the vicinity of the proposed new quay are confined

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:211:to the southern bank of the river, whilst all plumes associated with dredging of the turning circle are confined

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:211:(Figure 6.51), it was only during Stage 4 of the dredging (related to dredging of the turning circle) that any

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:211:the proposed dredge is considered to be of low sensitivity to increases in suspended sediment.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:212:The dominant sediment biotope present within the dredge footprint is EUNIS biotope A5.323, Nephtys

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:212:9.5.3 Effects of smothering following dredging on marine species and habitats

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:212:During the capital dredging a proportion of the material that is dredged would be disturbed and re-suspended

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:212:material during dredging is described in Sections 6 and 7.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:212:The proposed dredging footprint of the scheme is considered to be relatively limited; restricted to the direct

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:212:mentioned in Section 9.5.1.2, the estimated area to be disturbed directly as a result of the dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:212:Some of the sediment that is suspended as a result of the dredging activities will be deposited to the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:212:riverbed, either soon after disturbance occurring during the dredging operation (for coarser-grained

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:212:on the riverbed within the dredging footprint, whilst the deposition that occurs in other parts of the river is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:213:Any smothering caused by the proposed dredging activities is not predicted to result in the deposition of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:213:sediments at Seal Sands, Bran Sands or North Gare Sands, due to the limited footprint of dredging activities,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:213:potentially be affected. It is predicted that the proposed dredging would not give rise to the loss of a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:214:of ship wash and maintenance dredging where required) due to the shipping activities during operation and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:215:level rise. In the main channel the deposition will require periodic dredging to maintain the design depths.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:215:Changes to the cross-sectional area of an estuary due to capital dredging creation of a new subtidal area

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:215:9.6.3 Change in maintenance dredging regime affecting marine communities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:215:dredging will not change. The areas that are being proposed to be maintenance dredged for the scheme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:215:are all areas that are currently already being dredged regularly; there will be no change in the extent of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:215:seabed affected by maintenance dredging, with the exception of the newly created berthing pocket.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:215:continuously be disturbed by shipping activity and maintenance dredging and, therefore, this will prevent

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:215:communities as a result of the maintenance dredging requirement arising from the proposed scheme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:217:maintenance dredging, movement of vessels (including vessels associated with the demolition of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:217:mammals from the offshore disposal of dredged sediments are assessed in Section 26.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:220:estimate the noise levels likely to arise during the dredging works at the proposed scheme. More information

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:220:on the methodology used in the underwater noise modelling for the dredging works in Section 10.5.1.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:225:point of the proposed dredge footprint. The 2019 surveys occurred for a period of 47 days throughout the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:225:usage is relatively low in and around the proposed dredge footprint plus 1km buffer, with a grey seal density

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:225:dredging (Section 10.5 and 10.6). The density estimate of 0.014/km2 has been used to determine the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:227:at the Farne Islands (117km from proposed dredge area), Donna Nook in the Humber Estuary (173km from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:227:proposed dredge area), the Wash (233km from proposed dredge area) and at Blakeney Point (244km from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:227:proposed dredge area). With smaller haul-out sites located at Ravenscar (57km from proposed dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:227:area), Filey Brigg (81km from proposed dredge area) and at Seal Sands (3km from the proposed dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:228:Seals Sands is located approximately 3km from the proposed dredge footprint at its closest point. The Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:228:usage is relatively low in and around the proposed dredge footprint plus a 1km buffer, with a harbour seal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:230: 0.00008/km2 for dredge footprint plus 1km

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:230: 0.0003/km2 for dredge footprint plus 1km

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:230:disposal site. The winter area of the Southern North Sea SAC is located 127km from the proposed dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:230:The proposed dredge area is located within the Teesmouth and Cleveland Coast SSSI. Breeding harbour

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:230:Pupping tends to occur in June and July on the intertidal mud of Seal Sands (3km from the proposed dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:232:through the noise exposure event (dredging activity). This is a highly conservative approach, and likely has

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:232:the modelled noise levels for dredging works fell below 130 dB re 1µPa, they were of the order of ambient

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:233:publicly available (Subacoustech, 2018) has been used to assess the impact ranges of dredging works

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:233: • Backhoe dredger with an estimated sound source of 165.0 dB re 1 µPa SPLRMS @ 1m.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:233:proposed dredging in the Tees Dock turning circle to the coast).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:233:source levels predicted for the dredging activities, any marine mammal would have to remain in close

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:233:a result of underwater noise during dredging activities (Table 10.9) has been assessed based on the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:233:maximum number of animals that could be present in the maximum impact areas for dredging (Table 10.8).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:233:berth pocket, would be the same or less than those modelled for dredging activities.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:233:dredging activities based on Hartlepool approach channel underwater noise modelling (Subacoustech, 2018)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:233: et al., 2019) dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:233: SEL during dredging 0.003km2

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:234:PTS as a result of underwater noise associated with dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:234: dredging 0.00000024 grey seal Negligible / very low magnitude

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:234:The magnitude of the potential impact of PTS as a result of dredging noise is negligible / very low for harbour

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:234:The potential risk of any PTS that could result from underwater noise during the dredging works or other

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:234:activities would be limited to the immediate vicinity of the dredging works while they are taking place only.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:234:dredging works.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:234: dredging very low

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:235:The dredging process emits continuous, broadband sound into the marine environment. SPLs can vary

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:235:widely, dependent on the dredger type, operational stage, or environmental conditions (e.g. sediment type,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:235:factors will also affect the propagation of sound from dredging activities and along with ambient sound

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:235:Based on reviews of published sources of underwater noise during dredging activities (e.g. Thomsen et al.,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:235:mammals may be exposed to during dredging activities are usually below auditory injury thresholds or PTS

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:235:in marine mammals as a result of dredging activity is highly unlikely.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:235:area during dredging activities. Marine mammals may exhibit varying behavioural reactions intensities as a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:235:in the berth pocket, would be the same or less than those modelled for dredging activities.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:236:case location (closest point of the proposed dredging in the Tees Dock turning circle to the coast).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:236:display a fleeing response, as a result of underwater noise during dredging activities (Table 10.12) has been

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:236:(Table 10.11) for proposed dredging activities.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:236:dredging activities based on Hartlepool approach channel underwater noise modelling (Subacoustech, 2018)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:236: et al., 2019) dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:236: dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:236:result of underwater noise associated with proposed dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:236: during dredging (0.000000004% of the NE England MU) (temporary effect with less than 1% of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:236:The magnitude of the potential impact of TTS and fleeing response as a result of dredging noise, is negligible

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:236:The potential risk of any TTS or fleeing response that could result from underwater noise during the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:236:works would be limited to the immediate vicinity of the dredging works while they are taking place only. The

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:237:dredging works.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:237: dredging very low

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:238:vessels during the proposed dredging has been assessed based on a very precautionary worst-case of up

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:238:risk (Table 10.14). The proposed dredge footprint is approximately 0.38km2 in size (based on the dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:238:be present in the dredge footprint that could be at potential increased vessel collision risk

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:238: dredging (5% of Negligible / very low magnitude

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:238: animals in dredge 0.000002 grey seal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:238:potential increase in collision risk with vessels during dredging has been assessed as negligible (not

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:239:Table 10.15 Assessment of impact significance for increased collision risk from vessels during dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:239: dredging very low

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:240:the proposed dredge footprint. Due to the distance of the haul-out site from the proposed scheme, there is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:240:no potential for the dredge vessels to cause any disturbance to seals hauled out at the site, including the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:240:dredged material offshore, would maintain the same distance from the sandbanks as vessels currently

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:240:The proposed dredging and other underwater activities (namely demolition and removal of existing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:240:relied upon solely. Therefore, any increases in suspended sediments during dredging or other activities will

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:240:Potential impacts on fish species during dredging and other underwater activities can result from the physical

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:241:Therefore, there sensitivity to any changes in prey availability as a result of the proposed dredging is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:241:prey availability during the proposed dredging has been based on the dredge footprint of 0.38km2 and the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:241:be present in the dredge area that could be impacted by any changes to prey availability

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:241: dredge area Negligible / very low magnitude

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:241: dredge area Grey seal Low

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242: • Underwater noise during dredging;

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242: • Vessel interactions (collision risk) during dredging and operational use of the quay;

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242: • Disturbance at seal haul-out sites during dredging;

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242: • Changes in water quality during dredging; and,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242: • Changes to prey resource during dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:It is important to note that there will be no changes to the overall maintenance dredging strategy currently

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:undertaken by PDT during operation, with maintenance dredging currently undertaken virtually daily within

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:dredging during the operational phase of the proposed scheme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:10.6.1 Underwater noise during maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:Underwater noise predicted to be generated from maintenance dredging is considered to be the same or

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:less as the underwater noise predicted to occur from the capital dredging activities. Therefore, the impact

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:of maintenance dredging will be the same or less as that assessed for the construction phase (see Section

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:the maximum number of animals that could be impacted as a result of underwater noise during the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:10.6.2 Vessel interactions (collision risk) during maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:The potential for any increased collision risk during the maintenance dredging operations is considered to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:maintenance dredging will be the same or less as that assessed for the construction phase (see Section

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:number of animals that could be at increased collision risk during the maintenance dredging. The impact

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:significance for harbour porpoise, minke whale, grey seal and harbour seal during maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:dredging activities. The residual impact would be of negligible significance.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:10.6.3 Disturbance at seal haul-out sites during maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:The potential for any disturbance at seal haul-out sites during maintenance dredging is considered to be the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:same or less as that assessed for the dredging activities during the construction phase, and therefore the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:242:impact significance for any disturbance at seal haul-out sites during maintenance dredging has been

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:243:10.6.4 Changes in water quality during maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:243:The potential impact of any changes to water quality during maintenance dredging is considered to be the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:243:same or less as that assessed for the dredging activities during the construction phase, and therefore the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:243:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:243:impact significance for any changes to water quality during maintenance dredging has been assessed as

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:243:10.6.5 Changes to prey resource during maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:243:The potential impact of any changes to prey resources during maintenance dredging is considered to be the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:243:same or less as that assessed for the dredging activities during the construction phase, and therefore the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:243:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:243:impact significance for any changes to prey resources during maintenance dredging has been assessed as

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:259: P roposedDredg

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:266:vessels or disturbed by underwater noise or dredging activities. The vessels used in construction activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:271: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:275: 7 P roposedDredg

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:277: P roposedDredg

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:278: P roposedDredg

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:284: the proposed channel dredge, berth pocket and wharf demolition footprint and includes the North

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:295:12.5.1 Loss of supporting habitat due to dredging / excavation and demolition

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:295:The dredging footprint in the main channel does not overlap with the intertidal habitat available at North

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:296:supporting habitat within the footprint of the proposed dredging and excavation represents just 0.3% of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:296:As discussed further in Section 13.5.1, dredging and excavation activities resulting in an increase in SSC

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:296:The area that may be affected by increases in SSC during dredging has been described in Section 6.5.2.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:296:In summary, the largest sediment plumes are likely to arise during Stage 2 of the dredging (i.e. BHD and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:296:TSHD working in parallel to dredge in the berth pocket and the main channel). During this stage, the zone

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:296:of influence extends approximately 750m downstream and 2,500m upstream of the dredged area (see

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:296:Stage 2 dredging, presented in Section 6.5.2 indicates that significant SSC excesses from the capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:296:dredging are confined to the dredging transects and are predicted to decrease significantly with increased

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:296:distance from the dredging vessel, both laterally and along the line of the vessel, with plumes diminishing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:297:the dredging campaign may overlap with part of the common tern breeding period.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:297:affected by dredging, as detailed in Section 12.3.2). The peak count in 2020 was a decrease on previous

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:297:important for foraging and therefore terns may be sensitive to the turbidity caused by dredging operations

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:297:species (e.g. Sandwich tern). Furthermore, the occurrence of frequent (almost daily) maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:297:As described above, the zone of influence of the Stage 2 dredge presented in Figure 6.39 significantly

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:297:levels are only predicted to exceed baseline levels during the dredging campaign (a period of approximately

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:297:2 dredging will only comprise approximately one month of the approximately five month dredging campaign,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:298:and the other stages of the dredge campaign would result in a smaller plume than that described for Stage

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:298: therefore be undertaken in long strips along the axis of the estuary rather than dredging across

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:298: the width of the river. This is to reduce both the extent and impact of the dredged plume, as any

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:298: channel. This approach has been proposed for other capital dredge operations in the Tees, such

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:298:The deposition of fine sediment within intertidal areas due to capital dredging has the potential to affect

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:298:dredging, is presented in Section 6.5.2. Fine sediment will be deposited within minutes or hours if carried

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:298:in suspension from the point of release. Most falls within the dredged areas, whilst deposition elsewhere is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:298:of the effects of capital dredging and therefore a negligible impact is predicted on the waterbirds relying on

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:299:from dredging and demolition works, represented as the day / night LAeq) at most receptor locations will be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:302:of construction personnel, plant / machinery, dredgers / other vessels and construction lighting. In particular,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:302:during dredging of the main channel, dredging vessels will operate in close proximity to the North Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:302:Mudflat and Vopak Foreshore. Dredging is due to continue for a period of approximately five months. This

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:302:end of the proposed scheme footprint are within 300m of the mudflat (not including dredging activities, which

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:303:During dredging of the main channel and the turning circle, dredging vessels will operate in close proximity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:303:to the North Tees Mudflat and Vopak Foreshore. Most notably, sections of the channel dredge footprint run

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:303:adjacent to the North Tees Mudflat (this is illustrated in Figure 11.2), therefore the presence of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:303:maintenance dredging vessels which operate on an almost daily basis within the channel, including within

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:303:that there will be further habituation over the dredging period and any effects would lessen through the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:303:Disturbances to birds at Vopak Foreshore would be limited to the very short-term dredging within the Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:303:limited to Stages 1 to 3 (a period of approximately 4.5 months), but only during times when the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:303:transect runs close to the mudflat (for example, when dredging the southern half of the river it is unlikely to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:303:and the mudflat itself extends over a kilometre upstream of the dredge footprint. As such, any displacement

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:303:Given the above, it is anticipated that visual disturbances from dredging operations would have a minor

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:303:The mitigation measures outlined in Section 12.5.2 would ensure that dredging vessels only operate along

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:303:the axis of the river, rather than across it, thus minimising the frequency of occasions whereby the dredger

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:303:operates adjacent to the North Tees Mudflat. There is no practical way of avoiding dredging activities since

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:304:as a result of dredging activities and residual noise from land-based piling works. The assessment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:304:concludes that there may be a minor adverse effect as a result of the dredging leading to fish moving away

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:307:The potential impacts on fish and other marine species and habitats from the offshore disposal of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:309: Extensive dredging activity is planned for this area of the River Tees,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:309: species such as European Eel, Atlantic Salmon and Lamprey, it is result of the dredging have been

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:309: likely that dredging activity will need to take into account the considered in Section 7, and the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:309: would entail limiting dredging activity to certain times of the year migratory fish is presented in Section

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:309:of underwater noise levels arising from construction works such as piling and dredging. This section

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:317: • Byelaw XXIII – Method and Area of Fishing (Scallop Dredges) Byelaw 2015 – prohibits any

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:317: scallop dredge activity within the Tees Estuary and any marine area within 3nm of the coast.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:318:vessels under 10m in length. As outlined in Section 13.4.2.1, trawling, scallop dredging and netting gear

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:318:13.5.1 Changes in marine water quality due to dredging activity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:318:During capital dredging, approximately 1.8Mm3 of sediment (including approximately 1.27Mm3 of soft

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:318:material) will be removed by TSHD and backhoe dredger, which will result in a temporary increase in SSC

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:318:in one phase, the capital dredge campaign is anticipated to continue for approximately four months. Full

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:318:dredging, is provided in Section 6. The peak suspended sediment concentration within the Tees during the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:319:dredging campaign is predicted to be around 85 mg/l, although this is very limited in extent and would only

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:319:it is very unlikely that disturbance of sediment during the dredging would result in exceedances of EQSs,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:319:affected areas (Appleby and Scarratt, 1989). However, given that maintenance dredging is regularly

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:319:undertaken with the Tees by PDT (almost daily maintenance dredging all year round), it can be reasonably

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:319:to the disturbances associated with dredging activity.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:319:it is assumed that the programme for the capital dredging in the proposed scheme may coincide with peak

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:319:during a period of very hot and dry weather. Modelling of the sediment plume during capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:319:the dredging activity and falls below 50mg/l a short distance from the area being dredged. Concentrations

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:319:of suspended sediments are predicted to decrease significantly with increased distance from the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:320:no more than a few hundred metres from the dredging source.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:320:to the proposed dredging, significant elevations in SSC are predicted to occur in the immediate vicinity of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:320:the dredger and along the streamline and, for the most part, are expected to be restricted to a relatively

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:320:dredging phases set out in Section 6, the maximum area affected by increased SSC includes the entire

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:320:migratory fish movement in the estuary, particularly in juvenile (smolt) stages. With the dredging lasting for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:320:journeys throughout the dredging campaign.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:320: therefore be undertaken in long strips along the axis of the estuary rather than dredging across

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:320: the width of the river. This is to reduce both the extent and impact of the dredged plume, as any

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:320: dredging operation, as with other capital dredge operations in the Tees (e.g. Royal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:320:of the river at a time and, should dredging be undertaken during the months when migratory fish are present

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:320:which migratory fish will be able to move past the dredging activity (and for resident species to relocate to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:320:not viable since the size of dredger has to be sufficient to carry a large enough drag head and to have

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:320:sufficient propulsion power to undertake the required dredging operation.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:13.5.2 Entrainment of fish and fish eggs by dredging gear

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:Use of dredging apparatus, particularly TSHD dredge heads, could potentially lead to the entrainment of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:effects from direct uptake during dredging include physical injury, mortality and displacement. The potential

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:the lower Tees estuary, including the footprint of the proposed dredge, with plaice and dab notably abundant

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:Physical disturbance to the riverbed and noise/visual disturbance within close proximity to the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:crustaceans), with the presence of the dredge head likely resulting in them temporarily relocating away from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:the substrate or by other means, are likely to be sensitive to entrainment from dredging activities on that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:these species develop in the water column and are less sensitive to being entrained by dredge gear

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:operating at the seabed. Regardless, regular maintenance dredging undertaken within the proposed dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:risk of direct uptake of eggs during the capital dredge.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:since it would be limited to those present within the dredge footprint (an area of ~350,000m2). Given that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:of dredging on benthic habitat and food resources, assessed in Section 13.5.5.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:13.5.3 Underwater noise during dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:the dredging options) include movement of the drag head on the seabed, material suctioned through the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:TSHD dredgers are typically low frequencies, up to and including 1kHz (Robinson et al., 2011). Underwater

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:knots) (Theobald et al., 2011). Although backhoe dredging will also be employed during the capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:321:dredging, underwater noise associated with this method is generally considered to be lower than for TSHD

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:322:line system. As such, underwater sound arising from the dredging is expected to fall within the hearing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:322:such as those produced by operational dredging vessels, to fish, as presented in Table 13.8. Given a lack

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:323:For the purposes of this assessment, the risk that noise from dredging activities could result in mortality or

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:323: worst-case scenario (this form of dredging forms the worst-case scenario for the proposed scheme);

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:323: Tees Dock turning circle and the dredge footprint for the proposed scheme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:323: • The bathymetry and substrate in the proposed dredging location is broadly similar to that in the area

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:323:which certain unweighted RMS SPLs were expected to occur from both backhoe and TSHD dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:324:Table 13.9 Summary of the modelled ranges for unweighted RMS SPLs in 10dB increments for dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:324: Unweighted RMS Backhoe dredging TSHD

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:324:Modelled ranges for backhoe dredging are notably less than they are for TSHD. For the most sensitive

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:324:when considering use of TSHD, and 5 to 10m from source when undertaking backhoe dredging). This is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:324:will be breaks in dredging activity during the dredge/disposal cycles, plus it is highly unlikely that fish would

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:324:dredging, during an underwater noise survey conducted by Subacoustech in 2014 (Royal HaskoningDHV,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:324:will be sustained for as long as dredging is ongoing (a period of approximately four months). Noise levels

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:324:from backhoe dredging are considerably lower, and only significantly exceed background levels within a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:324:vessels and almost daily maintenance dredging, and they would also be able to temporarily move to nearby,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:324:less affected areas within the river while dredging is ongoing. Potential impacts for migratory species are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:325:downstream, particularly if dredging is undertaken during key migratory periods (see Section 13.4.1.2).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:325:Given that significantly elevated noise levels produced during backhoe dredging are not expected to extend

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:325:The TSHD campaign is predicted to last for approximately four weeks. While dredge/disposal cycles will

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:325:dredging would likely be very similar to the almost-daily maintenance dredging activities undertaken in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:325:recommence once the dredging campaign has ceased. Furthermore, the noise levels at the site will abate

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:325:for the majority of each dredge/disposal cycle while the TSHD vessel transports material to and from the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:325:dredging campaign. As such, the significance of a potential barrier effects on migratory species caused by

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:325:Use of dredging vessels are imperative for the proposed scheme. While use of smaller dredger heads may

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:325:measure. Applying the measure set out in Section 13.5.1 (dredging along the axis of the river, rather than

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:325:across the river) will help to ensure that noise levels at the opposite side of the river from the dredger remain

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:325:as low as possible over a dredge/disposal cycle, but as stated above the elevated noise levels will be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:328:fish. Removal of the wharf would result in a permanent loss of such habitat. Additionally, capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:328:on benthic estuarine flora and fauna, the regular maintenance dredging undertaken by PDT within the river

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:328:channel leads to a conclusion that the area of subtidal to be affected by the proposed dredging is unlikely

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:328:to represent an important spawning or feeding site . Regardless, capital dredging activities on existing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:328:The ongoing maintenance dredging suggests that subtidal habitat in the proposed dredge footprint is likely

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:328:Given the maintenance dredging that occurs, it can be reasonably assumed that fish feeding within the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:328:dredging activity. For this reason, the general sensitivity of fish to temporary changes in subtidal habitat in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:328:Given the above, alteration of the subtidal habitat as a result of dredging activity is considered to have a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:328:As well as the subtidal area affected directly by dredging activity, the increases in SSC anticipated during

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:328:capital dredging activity will consequently result in an increase in sediment deposition, which has the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:328:within the dredged area, whilst other areas outside the dredge footprint affected are typically less than 5cm.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:328:In the small extent of subtidal area outside the dredge footprint that may be affected by a small amount of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:330:those already subject to regular maintenance dredging and/or experience high volume of vessel traffic and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:331:13.6.3 Change in maintenance dredging regime affecting supporting habitats and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:331:effects on the existing maintenance dredging strategy, and no changes to the present-day maintenance

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:331:dredging strategy are necessary. As such, there would be no additional impact on supporting benthic

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:331:habitats and prey resources beyond those already associated with the existing maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:334: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:334: Advertised Dredge Depths (m)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:334: Advertised Dredge Depths

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:335:to the presence of the dredger and barges within and adjacent to the navigation channel (as well as any

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:335:area in the vicinity of the proposed quay but the capital dredging will, at certain stages in the construction

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:335: • Post dredge surveys and promulgation.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:335:It is envisaged that PDT would manage any potential conflicts in the same way as routine dredging and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:335:Harbour Master. Management of dredging operations within a busy port environment is a standard activity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:337: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:337: dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:337: deposition will require periodic dredging to maintain the design depths.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:337: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:339: disposal of dredged material should be taken into account.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:341: The Tees has been subject to dredging in the recent past meaning the potential for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:343: heritage is likely to be limited by dredging within the immediate area of the proposed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:343: wreck sites whether these are situated within an area of proposed new dredging 16.4.1 and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:343: dredging and offshore disposal activities (Figure 6.2).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:344: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:345: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:351: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:352:known to have been found during dredging within the river channel and there is a submerged forest is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:352:located near Hartlepool on the north bank. Although extensive dredging and reclamation has taken place

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:353: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:354: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:355:reclamation and disturbance from previous dredging within the channel. Although there is high potential for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:356: • Dredged channel/area, Navigation feature (Section of navigable waters), Modern (AD1900 –

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:356:proposed scheme (dredging and construction of the new quay) are in keeping with the historic (and current)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:358: • capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:359:by the historic reclamation and disturbance from previous dredging within the channel.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:359:potential for remains to be present, if such remains are encountered during dredging or during excavations

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:359:If present, dredging within the turning circle and approach channel and dredging / excavation to create the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:359:to effects during construction it is concluded that, other than within the dredged areas, sediment deposition

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:359:it will subsequently be dredged as part of ongoing maintenance dredging regimes, whilst material deposited

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:359:back into the newly dredged areas will be re-dredged during the capital works in order to achieve the desired

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:360: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:360: o in the main channel the deposition will require periodic dredging to maintain the design

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:360: construction as impacts are expected to already have occurred during the capital dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:360: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:367: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:373: • Dredging; and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:375: Dredging THSD/backhoe 1 C7.2 60 110.3

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:385: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:388: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:390: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:395: Dredging (one backhoe, one TSHD, two 6 20

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:395:Vessels used for the proposed dredging would be in use for a relatively short amount of time (approximately

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:424:comments on their requirements when considering the potential impact of dredging on the estuary, the need

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:426:namely the proposed dredge footprint, is in Flood Zone 3, associated with the 1 in 200-year return period

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:427: 3.7 * The proposed dredge footprint at the Tees Dock

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:454:dredging activity which are likely to translate to very small direct employment effects. As such, adopting the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:454:occur during demolition, quay construction, excavation and dredging phases. Assuming a gradual ramping

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:465: • fuel consumption from marine vessels, dredgers and road traffic; and,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:467:Capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:467:Capital dredging will be carried out within part of the Tees Dock turning circle, within parts of the existing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:467:navigation channel and within areas not currently subject to maintenance dredging to create a berth pocket.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:467:This would include dredging of marine sediments and excavation of soils / landside material within the river

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:467:The total dredged volume for marine sediments is predicted to be approximately 1,800,000m3. Dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:467:will be undertaken using a combination of a TSHD and a backhoe dredger. Different backhoe dredgers will

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:467:the transport of sediment dredged using the backhoe dredger to the offshore disposal site.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:468:Information for the calculation of GHG emissions from dredging are provided in Table 22.5.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:468:Table 22.5 Specifications of dredgers and barges to be used during the construction phase

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:468: Number of dredgers 1 1 1

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:468: Installed power dredger (kW) 8,313 1,600 1,600

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:468: dredger and barge)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:468: Power load factor estimate – dredger 50% 75% 80%

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:468:In addition to the workboats associated with demolition listed in Table 22.4, and dredgers and barges listed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:471: Construction dredger 6

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:478:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:478:The proposed scheme is predicted to generate up to approximately 1,800,000m3 of dredged sediment from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:478:been undertaken on a worst-case basis whereby all dredged sediment from the Tees estuary would be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:478:26.2 Modelling the dispersion and deposition of capital dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:478:To inform the assessment of environmental impacts from predicted offshore disposal of dredged material,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:479:The proposed disposal of dredged material within the Tees Bay C offshore disposal site has the potential

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:479:within and beyond the boundary of the Tees Bay C site due to disposal of dredged material. Seabed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:479:that there would be negligible impact on fish or fisheries due to the proposed deposition of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:479:In 2010, CEFAS undertook the ‘SLAB5’ dredged material disposal site sampling survey at a number of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:482:The proposed disposal of dredged material at the Tees Bay C offshore disposal site would be significantly

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:482:arise from offshore disposal of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:482:disposal site (an area which is designated specifically for the disposal of dredged material), however the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:484:invasive species Theora lubrica were found in samples from the Tees estuary, within the NGCT dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:484:are within the areas which are subject to regular maintenance dredging by PDT, however were located

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:484:outside of the proposed dredge footprint for the proposed South Bank scheme. The proposed dredging and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:484:dredge footprint prior to the dredge taking place (if they are not there already).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:484:species are not present at levels of concern within the Tees estuary. Maintenance dredged material from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:484:Bay for many years and will continue into the future. As a result, the disposal of dredged material within

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:484:(beyond that which has already occurred from previous and ongoing maintenance dredge disposal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:484:To undertake the disposal operation, the TSHD and/or disposal barges would transport dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:484:from the proposed dredge footprint to the Tees Bay C offshore disposal site. Consequently, there is potential

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:484:The disposal operations are linked to the dredging task and would require regular movements of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:484:plant between the dredge site and the disposal site, via the navigation channel and the coastal waters of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:484:dredged material offshore would be low (i.e. a TSHD and/or a barge), and no impact is predicted.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:484:The proposed disposal of dredged material has the potential to result in shallowing of the water depth above

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:484:significantly impacts navigation. It is concluded that the proposed disposal of dredged material into the Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:485:The underwater noise predicted to arise from the proposed dredging activities have been used as a proxy

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:485:for the assessment of potential impacts associated with offshore disposal of dredged sediments (see

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:485:disposal of dredged sediments are likely to be less than those generated during dredging activities. The

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:485:impact ranges are based on those modelled for the Hartlepool approach channel dredging scheme (see

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:485:As outlined in Section 10.5.1, there would be no risk of any PTS as a result of the proposed dredge and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:485:consequently this conclusion also applies to the proposed offshore disposal of dredged material.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:485:display a fleeing response, as a result of underwater noise during offshore disposal of dredged sediments

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:485:offshore disposal of dredged sediments

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:485: et al., 2019) dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:485: disposal of dredged 0.003km2

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:485:result of underwater noise associated with offshore disposal of dredged sediments

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:485: disposal of dredged (0.0000006% of the NE England MU) (temporary effect with less than 1% of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:486:dredged sediments is negligible / very low for harbour porpoise, minke whale, grey seal and harbour seal,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:486:disposal of dredged sediments would be limited to the immediate vicinity of the vessels while they are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:486:disposing of the dredged material. The number of harbour porpoise, minke whale, grey seal and harbour

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:486:dredged sediments on harbour porpoise, minke whale, grey seal and harbour seal, has been assessed as

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:486:Table 26.5 Assessment of impact significance for underwater noise during offshore disposal of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:486: dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:486:Potential for vessel interactions (collision risk) with marine mammals during disposal of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:487: of dredged 0.002 grey seal Negligible / very low magnitude

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:487:potential increase in collision risk with vessels during offshore disposal of dredged sediments has been

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:487: of dredged very low

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:487:disturbance due to the disposal of dredged sediment into the disposal site to seals at Seal Sands, including

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:488:As outlined in Section10.5.4, any vessels passing the seal haul-out sites as they take the dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:488:dredged sediment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:488:The offshore disposal of dredged material would temporarily increase the suspended sediment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:488:Changes to marine mammals prey resource during offshore disposal of dredged sediment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:491:the basis of the potential extent of the dredging and disposal plumes.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:492: Proposed quayside works and dredging at its North Sea supply base Approximately

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:492: The NGCT scheme comprises capital dredging up to 4.8 million m3

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:492: disposal of dredged material offshore, construction of a new 1.5km The NGCT scheme is located in very close

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:492: NGCT elements (buildings, rail terminal, road access, lighting, drainage Dredge footprint therefore is screened into the CIA.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:492: • dredging up to 750,000m3 of material from the approach

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:493: • dredging up to 372,000m3 of material from the approach

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:493: In addition to the proposed dredge (and associated disposal of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:493: dredged material), PDT is proposing to construct an underwater

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:493: being undermined following the proposed dredge.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:494: nature of this activity, maintenance dredging and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:494: for the area. However, maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:494: dredging at Hartlepool This activity has been ongoing for many years. 0km capital dredging activity required for South Bank

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:494: dredging at Hartlepool channel as the effects of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:494: 1 and Dolphin D, and a dredge of the river bed adjacent to the Consent in place small scale that there would be no significant

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:494: (with associated disposal of dredged material) to extend the existing dredge footprint cumulative impacts.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:494: Given that the dredge footprint largely overlaps

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:494: dredging in Tees Dock, which, given its location,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:494: The Tees Channel Dredge project involves a proposed deepening of would have no means of affecting the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:494: maximum maintained depth of 14m below CD. An Environmental estuary system), the area would be dredged by

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:494: Tees Channel Dredge Scoping Report (Royal HaskoningDHV, 2016) was submitted to the 0km either the South Bank project or the Tees Channel

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:494: MMO alongside a request for a scoping opinion for the project in Dredge project (not both). This removes the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:494: report has not yet been undertaken. Tees Channel Dredge project, therefore, has not

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:495: • Dredging of the existing berth and disposal of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:496: The MMO sees the proposed dredge as a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:496: maintenance dredge activity. Given the frequency,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:496: PDT is proposing to undertake a dredge of the approach channel to dredging, maintenance dredging and disposal is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:496: MMO has confirmed that PDT should submit a variation request to However, the proposed dredge could be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:496: Tees channel dredge its existing maintenance dredge licence in order to dispose of the undertaken at the same time as the capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:496: dredged material (i.e. the MMO sees the proposed dredge as a dredging activity required for South Bank (albeit

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:496: maintenance dredge activity). PDT’s intention is to undertake the within a different part of the estuary).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:496: dredge during 2020/2021.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:496: under the ‘maintenance dredge’ umbrella

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:500:American Harbour Facilities schemes and the ongoing maintenance dredging in the Tees estuary:

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:500: • dispersion of suspended sediment during capital dredging and deposition at the offshore disposal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:500:Maintenance dredging at Hartlepool and within the Tees estuary has been on-going for many years. Given

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:500:the frequency, duration and the ongoing nature of this activity, maintenance dredging and disposal is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:500:Dispersion of suspended sediment and deposition on the seabed during capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:500:All projects scoped into the CIA involve will involve capital dredging. This activity will create a plume of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:500:During the capital dredging works for the proposed scheme, other port facilities on the Tees will remain

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:500:operational. Maintenance dredging is, therefore, expected to continue throughout the capital dredge period.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:500:The capital dredge is also expected to influence the maintenance dredging requirements during and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:500:The extent of the sediment plume created by capital dredging is heavily dependent on the dredging plant

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:500:that is adopted, and this is determined by (amongst other factors) the nature of the bed and the dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:501:likely dredge plant that would be adopted and, in some cases, assumed that different types of plant would

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:501:be used for dredging different sediment types as part of the same project. As noted in Section 6.5.2, it is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:501:affected by a plume at some point during the dredging or disposal activities (in some areas this will be on a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:501:of sediment plume dispersion and deposition onto the river and/or seabed during capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:501: Combined maximum zone of influence from Stages 1 - 4 inclusive of the dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:501:NGCT TSHD dredging sand in the approach channel in low river flow, spring tide

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:501:sediment in the water column was predicted to be in close proximity to the dredger, with plume dispersion

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:501:dredging (and reclamation for NGCT) over the slack water period. In practice, much of this deposited

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:501:material will be re-dredged as part of the capital works for each scheme. At the peripheries of each plume,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:501:It should be noted that the potential for cumulative effects only arises should the dredging for the proposed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:502:(right) as a result of the proposed scheme [Note: plots show sediment plume impacts arising from dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:502:activities during Stages 1 - 4 inclusive of the capital dredging programme]

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:503:The potential impacts of the maintenance dredging programme in the Tees are considered within the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:503:Maintenance Dredging Baseline Document (Royal Haskoning, 2008). This consideration is specifically in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:503:the context of the implications of maintenance dredging for the Teesmouth and Cleveland Coast SPA and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:503: • effect of increases in suspended sediments during maintenance dredging on food resources of SPA

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:503: • increased noise levels (disturbance) during maintenance dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:503:The Maintenance Dredging Baseline Document 2008 concluded that maintenance dredging represents a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:503:potential supply of fine material to Seal Sands, with the timing of maintenance dredging in relation to the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:503:however, the Maintenance Dredging Baseline Document concluded that the maintenance dredging activity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:503:The WFD assessment presented in the latest annual update to the Maintenance Dredging Baseline

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:503:Document (Royal HaskoningDHV, 2019) concluded that, at water body level, maintenance dredging at

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:503:capital dredging have been proposed for the Anglo American Harbour facilities and the NGCT. For the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:503:former project, mitigation comprises the use of specialist dredging equipment (i.e. an enclosed grab loading

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:503:into a sealed barge) for dredging of unconsolidated material to minimise resuspension in the water column.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:503:This requirement is specified because of the elevated concentration of contaminants within the dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:504:will be no impact on tidal propagation or water levels due to the limited area of proposed dredging for this

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:504:channel in the lower estuary that will arise from capital dredging for the NGCT.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:504:that the proposed new quay alignment and capital dredge will not significantly affect the existing baseline

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:504:the dredging is predicted to draw some of the flow to the south side of the estuary, although such effects

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:505:require periodic dredging to maintain the design depths (a 10% increase in annual maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:505:proposed dredge).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:505:offshore; with the potential to increase the maintenance dredging requirements by about 10%. No increase

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:505:used for, maintenance dredging, and no effect on sediment supply to intertidal areas throughout the Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:505:The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:505:material to Seal Sands. However, the latest annual update to the Maintenance Dredging Baseline

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:505:maintenance dredging regime could adversely affect the overall estuary morphology and the ongoing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:506:maintenance dredging in the Tees estuary as follows:

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:506: • dispersion of suspended sediment during marine works, dredging and disposal; and,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:506:cumulative effects only arises should dredging for each scheme coincide. Under such circumstances, the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:506:timing of the projects and their respective programmes of capital dredging will coincide to result in a scenario

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:506:across the estuary and navigational safety is unlikely to support dredging on different sides of the estuary

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:506:In terms of maintenance dredging, there is the possibility that maintenance dredging could occur at the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:506:relatively localised effects to the dredger produced in the hydrodynamic modelling assessment for the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:506:similar throughout the estuary where regular maintenance dredging occurs. As a result, and noting the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:507:within the footprint of the proposed scheme, where the intertidal area will be dredged to create the berth

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:507:capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:507:Sediment deposition resulting from the dredging for the proposed scheme will largely be within the proposed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:507:dredged footprint. Deposition that occurs in other parts of the river is predicted to be much lower, typically

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:507:are largely similar; however, the effect of the NGCT dredge is larger, with deposition predicted to extend

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:508:Maintenance dredging is targeted at areas that require dredging to maintain navigable depths and, although

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:508:Based on the above, it is concluded that there will be no cumulative effect on the maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:508:modelled for piling and dredging for the Hartlepool approach channel (Table 27.3).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:508:dredging based on NMFS (2018) criteria for Hartlepool approach channel scheme modelling

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:508: during dredging South Bank Harbour porpoise 153 dB re 1 µPa HF SELcum 0.7km

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:509:dredging at the proposed South Bank scheme, NGCT, Hartlepool approach channel and Anglo American

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:509:temporary auditory injury (TTS) or a fleeing response from cumulative impacts of piling and dredging at the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:509: during dredging – III Block O density of 0.888/km2.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:510: during piling and dredging – density of 0.01/km2. population anticipated to be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:510:or dredging noise from the proposed scheme, NGCT, Hartlepool approach channel and Anglo American

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:510:disturbance as a result of cumulative underwater noise impacts from piling and dredging activities on

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:511:dredging activities on marine mammals

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:511: dredging at the Negligible /

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:511: • Ongoing maintenance dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:511: • Tees channel dredge.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:513:of the proposed scheme, should it be undertaken at the same time as the dredging required for the NGCT,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:513:dredging works that exist within the Tees estuary. As stated in Section 12.5.2, the main receptor that may

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:513:In order for a potential cumulative impact to manifest, the dredging campaign for the proposed scheme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:513:would need to coincide with at least one of the other dredging campaigns noted above, and both would need

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:513:this occurs, the zones of influence from dredging would create an additive effect, as demonstrated in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:513:more dredge campaigns ongoing at any one time.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:513:(i.e. dredging along the axis of the river rather than across it to ensure that, at any one time, sediment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:513:Anglo American Harbours facilities scheme, specialist dredging equipment (i.e. an enclosed grab loading

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:513:into a sealed barge) will be used for dredging of unconsolidated material to minimise resuspension in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:513:Stage 2 of the proposed capital dredging coincide with the Hartlepool Channel deepening works, the two

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:513:dredging plumes together will still affect only around 0.5% of the SPA subtidal habitat (Royal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:513:HaskoningDHV, 2015)). However, the additive effect of the sediment plumes from separate dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:514:Changes in marine water quality due to dredging activity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:514:require dredging, including the NGCT, Anglo American Harbour Facilities and the ongoing maintenance

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:514:dredging works. The main receptors that may be affected by this cumulative effect are migratory species,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:514:Should two or more of the dredging campaigns for the proposed scheme, the NGCT scheme, the Anglo

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:514:American Harbour facilities scheme and the ongoing maintenance dredging be undertaken simultaneously,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:514:and preventing migration, should the dredging be undertaken during the peak migration season.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:514:scheme in Section 13.5.1 (i.e. dredging along the axis of the river, rather than across it to ensure that, at

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:514:of the sediment plumes from separate dredging campaigns cannot be completely avoided if the campaigns

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:515:Underwater noise from the proposed scheme is predicted to arise from both dredging and land-based pile

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:515:the land-based piling, there may be minor adverse impacts from the dredging noises which could potentially

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:515:Should the dredging campaign for the proposed scheme coincide with dredging from one or more of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:515:NGCT scheme, the Anglo American Harbour facilities scheme and the ongoing maintenance dredging, the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:515:Given the regularity of maintenance dredging within the channel, resident and migratory fish in the estuary

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:515:reduce the magnitude of impacts from individual dredges. It has to be recognised that underwater noises

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:515:in isolation, though it is highly unlikely that there would be more than one or two dredge campaigns ongoing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:515:American Harbour Facilities scheme. The South Bank dredge footprint will pass adjacent to the site of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:515:Anglo American Harbour Facilities and the NGCT dredge footprint (overlapping with the proposed dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:516:to this are the dredging footprint for the Tees Dock turning circle (which is also included as part of NGCT

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:517:dredge footprint), and the landward part of the proposed scheme of this application (which overlaps in part

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:517:However, as the dredging for the turning circle will only take place once, either for NGCT or for the scheme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:521:27.5.22 Disposal of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:521:The proposed scheme involves the requirement to dispose of up to 1,800,000m3 of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:521:offshore, should no beneficial re-use options be forthcoming prior to the dredge taking place. Section 26

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:521:concludes that the disposal of dredged material will have a negligible impact on fisheries, marine ecology

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:522:estuarine-and-coastal-waters. The proposed quay, dredge area, disposal site and WFD water body outlines

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:522:maintenance dredging campaigns would be on a significantly smaller scale than the capital dredging and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:522:that the estuary is already subject to ongoing maintenance dredging, scoping is undertaken on capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:522:dredging only.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:523: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:524: • C2 Capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:524: dredger.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:526: 22.Dredging disposal strategy

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:526: 23.Reduce impact of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:526: 25.Retime dredging or disposal None identified

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:526: 27. Dredge disposal site selection

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:528:C2 Capital dredging hydromorphology and WFD mitigation are no higher sensitivity water quality due to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:528: 500m. during dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:529:C2 Capital Dredging No – dredging will not impact on the groundwater body

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:530:28.5 Detailed assessment – C2 Capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:531: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:531: to the new quay alignment) and the local deepening of the bed due to the capital dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:531: the deposition will require periodic dredging to maintain the design depths.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:531:in mean tidal prism as a result of the new quay’s set-back alignment and dredging of part of the existing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:532:Overall therefore, the effects of the capital dredging and presence of new quay wall on the flow conditions

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:532:Capital dredging within the river would result in sediment plumes. To consider the potential extent and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:532:model MIKE3-HD and run for the four-month period over which dredging is predicted to occur. The

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:532:simulations also accounted for the movement of dredgers and transport barges (including dredging, sailing,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:532: BHD working to dredge the In all tidal conditions modelled, the lateral extent of the plume across the river channel

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:532: created by the different dredgers. At some points in the cycle, areas of these initially

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:532: parallel to dredge the middle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:532: 3 BHD working to dredge the The maximum concentrations and the spatial extents of the plume arising from Stage

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:532: bottom hard material in the 3 of the dredging are much lower than those experienced during Stage 1 largely

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:532: berthing pocket and river because the material being released is coarser and the production rate of dredging is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:532: channel. notably lower. Plume very small and located close to the dredging activity.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:532: 4 Again, peak concentrations close to the dredger are shown in the plume modelling

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:532: parallel to dredge the material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:533: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:534:concentations within an hour. All other stages of proposed dredging either do not cause elevations or only

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:534:Tyne for the New Tyne Crossing to predict the consequences of dredging on dissolved oxygen

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:534:such as dredging times, seasonal fluctuations and river flows, the modelling predicted only small differences

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:534:between background and dredging impacted dissolved oxygen concentrations. No difference was noted

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:534:between the summer and winter concentrations. Furthermore, dredging in the Tyne is considered to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:534:limited plume extents for the majority of the capital dredge for the proposed scheme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:534:dissolved oxygen concentrations are only likely to be an issue when dredging within an area with an existing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:534:monitoring of dredging suggests effects are unlikely. Given the water body has a classification status of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:535: • A relatively large proportion of the total volume of dredged material is anticipated to comprise

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:535: the dredge area.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:535: • The daily dredge volume is likely to be less than that accounted for due to stoppages associated

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:535: • The calculation is based on loss from a TSHD whereas a considerable component of the dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:535: will be undertaken with a backhoe dredger which has a lower production rate and therefore

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:535:with hours) for Stage 2 which reduce as dredging progresses (see Figure 28.4).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:535:suspended solids when in close proximity to the dredger. As a result, a non-temporary deterioration in water

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:535:The majority of the proposed dredge footprint is located within the subtidal parts of the Tees estuary and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:535:therefore the majority of the dredge would impact on the lower sensitivity habitat ‘subtidal soft sediment’ of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:535:locate the quay in the riverbank (i.e. on land), dredging and excavation in front of the quay wall to create the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:536:Information regarding the habitat located within the dredge footprint is to be confirmed with a site specific

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:536:collected to inform the ES for NGCT are likely to be similar in nature to those found within the dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:536:most frequently in the estuarine locations (and within the area to be dredged for this project) was EUNIS

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:536:The biotopes recorded in the 2019 survey are likely to reflect those located in the dredge area given their

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:536:Whilst capital dredging would remove material from the seabed it would not alter the habitat type available

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:536:composition and numbers following dredging, it is predicted that the sediment communities would recover

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:537:It is also recognised that the proposed dredge footprint is within close proximity to the North Tees mudflat,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:537:Sediment suspended within the dredging plumes will fall to the riverbed, either soon after disturbance or

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:537:spillage occurring during the dredging operation (for coarser-grained sediment fractions), or at a point in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:537:by deposition. It can be seen that much of the sediment falls to the bed within the dredged areas (from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:537:where it will be re-dredged to achieve the necessary bed depths), whilst the deposition that occurs in other

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:538:Figure 28.5 Maximum river bed thickness change due to sediment deposition arising from dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:538:activities during Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:539:affected areas (Appleby and Scarratt, 1989). However, given that maintenance dredging is regularly

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:539:affected area would likely be relatively tolerant / acclimatised to the disturbances associated with dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:539:areas of the estuary at any one time. Additionally, it is proposed that dredging would be limited to one side

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:539:past the dredging activity (and for resident species to relocate to largely undisturbed areas), thus reducing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:539: There would be a temporary presence of dredging vessels but

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:539: Dredging disposal strategy Whilst there would be a temporary increase in material that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:539: Reduce impact of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:539: would not alter significantly the maintenance dredging and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:539: Retime dredging or disposal MMO and their advisors Cefas.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:539: Dredging would be managed in line with mitigation measures

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:539: Dredge and disposal site selection agreed for various environmental topics which include

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:539: dredging along the axis of the river to ensure the plumes are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:539: a result of the capital dredge is provided in Section 28.5.3.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:540:The combined effects of the dredge area and presence of new quay wall set back in the embankment are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:540: Dredging disposal strategy

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:541: Reduce impact of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:541: Retime dredging or disposal Riverbank excavation would not impact on these mitigation

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:541: Dredge and disposal site selection

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:542:The combined effects of the dredge area and presence of new quay wall set back in the embankment are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:542: Dredging disposal strategy

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:542: Reduce impact of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:542: Retime dredging or disposal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:542: Dredge and disposal site selection

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:542: on marine ecology are related to dredging of the berth and are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:543: deepened areas associated with the capital dredge which could have effects on ecological

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:543: • The combined effect of the loss of intertidal habitat (dredged berth), loss of subtidal (rock blanket)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:543: and temporary disturbance of subtidal habitat (capital dredge) on ecological potential of the WFD

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:544: • The combined effect of dredging and effects associated with piling and riverbank excavation on

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:544:same as the effects predicted for the capital dredging alone.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:544:predicted to be temporary and a significant portion of the dredge area is already subject to maintenance

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:544:dredging so is already disturbed and supports communities habituated to this disturbance. The remaining

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:544: • Ongoing maintenance dredging in the Tees estuary.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:544:All schemes require dredging and construction of new riverbank structures and therefore the following

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:544: • Disturbance of marine habitats associated with dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:545:maximum concentrations of suspended solids are localised to the dredging activity and quickly disperse

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:545:with distance from the dredger. Additionally, peaks are relatively short lived (approximately an hour at a time

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:545:for the proposed scheme for example) and associated with specific dredging phases of each scheme. The

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:545:water column would be significantly increased by the projects all dredging at the same time. Where

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:545:proposed project both include mitigation measures to dredge in long strips to reduce the effects of sediment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:545:dredgers would be working on different sides of the estuary and therefore clear channels would be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:545:Any project that requires dredging would disturb the marine communities within the sediments to be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:545:dredged. However, PDT undertake maintenance dredging in the majority of the estuary. Consequently, all

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:545:disturbance. Given dredging for all projects would not alter the substrate type or exposure, subtidal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:545:index are not predicted given the existing maintenance dredging which would be accounted for in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:545:proximity to the dredging over the slack water period for all projects. In practice, much of this deposited

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:545:material will be re-dredged as part of the capital works for each scheme. Beyond the immediate deposition

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:547: or water levels due to the limited area of proposed dredging for this project. Cumulative effects are therefore not predicted over and above those identified for the scheme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:547: Currents Modelling for the proposed scheme showed that the new quay alignment and capital dredge would have very small localised effects predominantly near to the quay wall but

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:547: require periodic dredging equivalent to a 10% increase in annual maintenance dredging requirement.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:547: material to the Tees estuary from offshore; with the potential to increase the maintenance dredging requirements by about 10%. No increase in sandy infill was predicted. A

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:547: changes in current speeds but that this would not alter the present frequency of, or methodology used for, maintenance dredging. Additionally, no effect was identified on

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:548: The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine material to Seal Sands. However, the latest annual update to the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:548: Maintenance Dredging Baseline Document (Royal HaskoningDHV, 2019) concludes that the current maintenance dredging regime does not adversely affect the overall

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:548: estuary morphology and the ongoing morphological processes at work. Additionally, maintenance dredging forms part of the baseline for WFD classification given that it is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:549:dredging’ identified risks to all WFD quality elements but detailed assessment deemed that the impacts

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:549:the locality of the dredger and only for hours at a time during Stage 2 of the proposed dredge programme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:549:All other stages of dredging required for the proposed scheme did not indicate significant concentrations of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:549:protect resident and migratory fish further reduce this risk as dredging will be limited to occurring in long

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:550:These were NGCT, Anglo American Harbour Facilities and ongoing maintenance dredging in the estuary.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:550:would be sediment plumes associated with dredging simultaneously. However, on further consideration,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:550:peak concentrations for all projects are restricted to close proximity to the dredger and disperse with

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:550:projects would occur at the same time. Mitigation measures such as dredging in long strips as required for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:555: dredging, excavation and demolition works.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:555: • Sand and shingle • Water quality reductions from demolition and dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:555: with offshore disposal of dredged material have been

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:556: Northumberland a result of underwater noise during dredging and • No pathways for effect

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:557: (100km south porpoise as a result of underwater noise during dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:557: • Mudflats and sandflats not due to underwater noise from dredging and offshore

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:559:dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:559:influence of the proposed scheme will be determined by the sediment plume during dredging activities.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:561: Proposed quayside works and dredging at its North Sea supply base Approximately

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:562: The NGCT scheme comprises capital dredging up to 4.8 million m3 Should the NGCT scheme coincide with the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:562: disposal of dredged material offshore, construction of a new 1.5km interest features of the SPA / Ramsar site could

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:562: NGCT elements (buildings, rail terminal, road access, lighting, drainage Dredge footprint noise, visual disturbance and water quality

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:562: • dredging up to 750,000m3 of material from the approach scheme, in-combination effects to the interest

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:562: • dredging up to 372,000m3 of material from the approach

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:563: In addition to the proposed dredge (and associated disposal of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:563: dredged material), PDT is proposing to construct an underwater

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:563: being undermined following the proposed dredge.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:563: nature of this activity, maintenance dredging and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:563: for the area. Although maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:563: Ongoing maintenance dredging for the scheme, there is potential for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:563: dredging at Hartlepool This activity has been ongoing for many years. 0km maintenance dredging elsewhere within the Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:563: and in the Tees estuary to coincide with the capital dredging, which could

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:563: The effects of maintenance dredging at Hartlepool

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:563: maintenance dredge disposal licence) would not

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:564: refurbishment 1 and Dolphin D, and a dredge of the river bed (with associated

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:564: dredge footprint combination effects.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:564: disposal of dredged material) to extend the existing berth pocket

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:564: The dredge footprint for the proposed scheme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:564: overlaps with the proposed Tees channel dredge.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:564: The Tees Channel Dredge project involves a proposed deepening of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:564: Tees Channel Dredge Scoping Report (Royal HaskoningDHV, 2016) was submitted to the 0km

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:564: the Tees Channel dredge would not be undertaken

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:565: • Dredging of the existing berth and disposal of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:566: dredge as a maintenance dredge activity. Given

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:566: PDT is proposing to undertake a dredge of the approach channel to maintenance dredging within the Tees, this activity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:566: its existing maintenance dredge licence in order to dispose of the capital dredging activity required for the proposed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:566: dredged material (i.e. the MMO sees the proposed dredge as a scheme (albeit within a different part of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:566: maintenance dredge activity). PDT’s intention is to undertake the estuary).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:566: dredge during 2020/2021.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:566: under the ‘maintenance dredge’ umbrella

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:570: • Loss of intertidal feeding resource due to dredging and excavation to create the berth pocket.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:570: • Indirect impacts on foraging behaviour as a result of impacts to prey resource from capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:570: • Maintenance dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:572:Effects on water quality due to dredging and disposal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:572:The capital dredging of the river will cause plumes of sediment to form. The plume effects arising from the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:572:river dredging are characterised by a short-lived localised increase in suspended sediment concentrations

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:572:by the order of a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:572:extent and reduction in concentration over the following hours. Since the dredging is a near-continuous

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:572:at varying extents depending on the dredging activities undertaken at any one time. Deposition thicknesses

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:573:be sustained in light of sea level rise. In the main channel, the deposition will require periodic dredging to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:573:maintain design depths. An increase in annual maintenance dredging requirement considered in Section

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:573:6 is predicted to yield a very low overall contribution to the net annual maintenance dredging requirements

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:573:from the estuary as a whole and the potential increase in maintenance dredging requirement could easily

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:573:be managed within existing maintenance dredging regimes (i.e. no change to the existing maintenance

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:573:dredge strategy is required).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:573:new quay’s set-back alignment and dredging of part of the existing estuary bed is 150,901m3. This

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:573:SPA, behind the existing wharf, to subtidal habitat, due to the capital dredging and excavation required to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:573:create the berth pocket. The dredging footprint in the channel and the Tees Dock turning circle does not

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:573:mudflat / other intertidal types in the estuary (i.e. the dredge will be within subtidal areas only). Dredging in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:574:as foraging grounds, indicated by WeBS core counts for the two sectors in which capital dredging will be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:574:subject to regular (almost daily) maintenance dredging by PDT therefore the impact of the capital dredge is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:574:the proposed capital dredge. Furthermore, the subtidal area within the proposed dredge footprint represents

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:575:dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:575:While 32.5ha of subtidal will be affected by the proposed capital dredging, the area already experiences

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:575:regular (almost daily) maintenance dredging by PDT so there are not expected to be any long-term changes

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:575:With the application of mitigation in the form of ensuring that the capital dredging transects run along the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:575:dredging activities associated with the highest modelled increase in SSC (i.e. Stage 2 of the dredging, which

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:575:The sediment dispersion modelling of Stage 2 dredging indicates that, at any given time, significant SSC

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:575:excesses from the capital dredging are confined to the dredging transects and are predicted to decrease

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:575:significantly with increased distance from the dredging vessel, both laterally and along the line of the vessel,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:575:month dredging programme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:575:England, 2018a). The area affected by the sediment plume generated from proposed dredging, though

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:575:Maintenance dredging in the channel, undertaken by PDT on an almost-daily basis, infers that terns using

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:575:dredged.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:575:foraging opportunities during the capital dredging are not considered to represent a significant change to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:576:approximately five-month duration of the capital dredging campaign. As such, there are expected to be no

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:576:concludes that the periodic nature of underwater noise, plus the likely habituation to background dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:576:noise due to regular maintenance dredging, means that impacts on fish are considered to be of minor

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:576:opportunities during the capital dredging are not considered to represent a significant change to foraging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:578:construction personnel, plant / machinery, dredgers / other vessels and construction lighting. Sections

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:579:scheme footprint (not including dredging activities, which are considered separately below), therefore for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:579:During dredging of the main channel and the turning circle, dredging vessels will operate in close proximity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:579:to the North Tees Mudflat and Vopak Foreshore. Most notably, sections of the channel dredge footprint run

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:579:adjacent to the North Tees Mudflat, therefore the presence of dredging vessels may result in disturbance to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:579:dredging vessels which operate on an almost daily basis within the channel, including within 30m of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:579:habituation over the proposed capital dredging period and any effects would lessen through the course of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:579:Disturbances at Vopak Foreshore would be limited to the approximately one week of dredging required to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:579:approximately 4.5 months of dredging required further upstream, but only during times when the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:579:transect runs close to the mudflat (for example, when dredging the southern half of the river it is unlikely to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:579:threshold, and the mudflat itself extends over a kilometre upstream of the proposed dredge footprint. As

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:580:associated with the capital dredging has been assumed to represent a temporary loss of foraging habitat in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:580:various impacts commonly associated with dredging and industrial work in the Tees. As such, the number

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:581:adjacent to the dredging footprint. The proposed scheme will result in the conversion of approximately 2.5ha

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:581:of intertidal to subtidal habitat, demolition of artificial structures and dredging of an area of approximately

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:581:As stated in Section 29.5.4, the effects of capital dredging on subtidal habitat are considered to be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:581:characteristic of a disturbed environment regularly affected by ongoing maintenance dredging). Impacts on

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:583:projects. However, dredging activity may, at worst, lead to some localised redistribution on North Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:583:the ongoing PDT maintenance dredging, have the potential to cause similar disturbance to the Vopak

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:583:Foreshore and / or North Tees Mudflat due to dredging activity in the channel. However, the dredge footprint

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:583:for the proposed scheme overlaps in part with the NGCT dredge footprint at the Tees Dock turning circle.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:583:The dredge at Tees Dock turning circle would therefore only be undertaken by one of these schemes, which

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:583:reduces the potential for in-combination disturbance to birds at Vopak foreshore. Maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:583:within the estuary occurs on an almost daily basis; such dredging was ongoing at the time the SPA and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:583:Ramsar site was extended and has been occurring for many years. It is therefore concluded that dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:583:dredging for all schemes screened into the assessment be required at the same time (which is highly

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:584:approach channel scheme and the ongoing maintenance dredging by PDT.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:584:An interaction between the sediment plumes would only occur in the unlikely event that the capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:584:low, with any effect confined to the footprint of the proposed dredge. The predicted increase in suspended

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:584:impact dissipating within 10 minutes following completion of the dredge (Royal HaskoningDHV, 2018).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:584:Harbour Facilities scheme, the ongoing maintenance dredging and the Dogger Bank Teesside A & Sofia

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:584:dredging transects oriented along the axis of the river rather than across to ensure that, at any one time,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:584:For the Anglo American Harbours facilities scheme specialist dredging equipment (i.e. an enclosed grab

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:584:loading into a sealed barge) will be used for dredging of unconsolidated material to minimise resuspension

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:584:extensive (and on-going) maintenance dredging within the channel on an almost-daily basis, common terns

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:585:on land are excluded. The ongoing maintenance dredging is also not considered here as this forms part of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:585:increase in maintenance dredging requirement is not expected to be significant and could easily be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:585:managed within existing maintenance dredging and offshore disposal regimes.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:585:been subject to maintenance dredging and offshore disposal as part of ongoing maintenance dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:586:impacts commonly associated with dredging and industrial work in the Tees, regardless. As such, the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:588:ABPmer (2005). Tees Maintenance Dredging Baseline Document. Report R.1149.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:588:Central Dredging Association (CEDA) (2011). Underwater sound in relation to dredging. Position Paper - 7

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:588:November 2011. Available at URL: http://www.dredging.org/documents/ceda/downloads/2011-

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:591:Halcrow (1991). Tees Estuary Dredging Review. Report for Tees and Hartlepool Port Authority.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:592:HR Wallingford (1992). Tees and Hartlepool Port Authority. Review of Dredging. EX 2580.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:593:sediment plumes arising from dredging. Construction Industry Research and Information Association

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:593:Jones, D. and Marten, K. (2016). Dredging sound levels, numerical modelling and EIA. Maritime Solutions

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:597:Pirotta, E., Laesser, B. E., Hardaker, A., Riddoch, N., Marcoux, M., and Lusseau, D. (2013). Dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:597:(2011). Measurement of underwater noise arising from marine aggregate dredging operations. Marine

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:597:Royal Haskoning (2007a). Tees Maintenance Dredging Baseline Document. May 2007.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:598:Royal HaskoningDHV (2017a). Tees Maintenance Dredging Annual Review 2016.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:598:Royal HaskoningDHV (2018). Tees Maintenance Dredging Annual Review 2017.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:598:Royal HaskoningDHV (2019a). Tees Maintenance Dredging Annual Review 2018.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:598:Royal HaskoningDHV (2020a). Tees Maintenance Dredging Annual Review 2019.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:599:(2011). The measurement of underwater noise radiated by dredging vessels during aggregate extraction

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:600:F. (2014). A review of impacts of marine dredging activities on marine mammals. – ICES Journal of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:600:WODA (2013). Technical Guidance on: Underwater Sound in Relation to Dredging. World Organisation of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-10.pdf:600:Dredging Associations.

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:1:within the range experienced with passing vessels, although it will be sustained for as long as dredging is

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:1:predicted to last for approximately four weeks”. Please can the duration of the proposed dredging works

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:1:The indicative durations of the proposed dredging works are detailed in Section 3.6.1 of the EIA Report.

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:1:The proposed dredge can be summarised as follows:

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:1: • Removal of soft material above -5m bCD using a backhoe dredger (approximately four weeks).

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:1: • Removal of soft material below -5m bCD using a backhoe dredger and a TSHD (approximately

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:1: • Removal of soft material in the turning circle using a backhoe dredger and a TSHD (approximately

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:1: • Removal of hard material using a backhoe dredger (approximately 10 weeks).

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:1:The proposed dredging activities are therefore predicted to take in the order of five months to complete.

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:2:required is the maximum total bed level change from the cumulative disposal of the entire dredge load.

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:2:plumes from separate disposal activities over the whole dredging campaign.

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:2:As can be seen from the modelling, a very comprehensive dredging and disposal schedule was developed.

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:2:dredge load be presented and discussed with respect to the licensed disposal site. Given the modelling

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:4:potentially accelerated deposition due to flow velocity reduction impact the future dredge requirement in

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:5:increase in annual maintenance dredge requirement at this location, but that this is not expected to be

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:5:maintenance dredging requirement is not expected to be significant and would be managed within existing

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:5:maintenance dredging and offshore disposal regimes.

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:5:in terms of actual flow speeds at the site, and it appears that this may be up to 50% reduction? Dredging

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:5:relative to the present. The dredged pocket and area of affected flows appears to occupy the full width of

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:5: estuary containing the proposed dredging/quay. The effect can, at some tidal states (but not all), be

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:5: dredging. After the scheme is in place there will be no change in the local process (i.e. it will not

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:5: requirement for maintenance dredging. There will be no direct change in baseline hydrodynamics

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:5:2. We have not claimed that the dredging of the Tees Dock turning circle will have “no hydrodynamic

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:15: • Revised modelling of the plume that takes into account other dredging activity which may be

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:15:specifically covers the potential effects on water quality as a result of dredging from all projects which were

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:15:dredging for each scheme coincide. In reality, this is highly unlikely to occur. Under such circumstances,

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:timing of the projects and their respective programmes of capital dredging will coincide to result in a

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:extents across the estuary and navigational safety is unlikely to support dredging on different sides of the

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:suspended sediment from any stage of the dredging). It is important to note that this type of figure does

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:river channel that will become affected by a plume at some point during the dredging campaign (in some

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:Clarification on the proposed exact times (i.e. months) of dredging works so that the likelihood of potential

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:The applicant is not able to define months within which the dredge is to be undertaken (as this is dependent

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:a worst case basis whereby the dredge and disposal could be undertaken at any time of the year. This

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:Recommend that the you consider the feasibility of undertaking dredging works outside the peak upstream

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:The applicant is not able to define months within which the dredge is to be undertaken (as this is dependent

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:a worst case basis whereby the dredge and disposal could be undertaken at any time of the year. This

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:provides the greatest flexibility to the applicant. It would not be desirable to restrict the proposed dredge

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:Report, as well as the fact that PD Teesport undertake maintenance dredging on almost a daily basis all

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:Cefas recommend that you present a revised sediment dispersion model that includes the dredging

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:proposed for NGCT and regular maintenance dredging (i.e. dredge material quantities, times and

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:dredging to one side of the river at a time and better determine the likelihood of potential cumulative effects

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:16:maintenance dredging could be carried out at various locations depending on need.

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-34.pdf:19: 2.5. Dredge and disposal

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:3:project only, with some further changes to methodology and dredge volumes anticipated.

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:3:only and undertaken by Cutter Suction Dredger would remain acceptable.

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:3:The proposed changes to dredge methodologies and areas have been re-assessed, and it is concluded,

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:3:internal review of using a Cuter Suction Dredger only, that overall navigational risk during the

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:3:significant reduction in vessel traffic due to the use of a cutter suction dredger and two large barges,

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:3:instead of multiple smaller dredging vessels.

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:3:dredging approach (for example, mainly CSD, but also some BHD / THSD excavations), navigational

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:4: Phase 1 undertaken by Cutter Suction dredger ……………………………………………………….. 6

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:4:Table 1: Original Estimated Construction Vessel Movements and Dredge Volumes – Phase 1 Only …. 7

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:4:Table 2: Revised Phase 1 Dredge Volumes (Source: Van Oord) ……………………………………………………. 7

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:5:all dredging would be undertaken using a Cutter Suction Dredger CSD). While not a formal project

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:5:The construction phase also requires dredging of the Tees Dock Turning Area, the Navigable Channel

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:5:project only, with some further changes to methodology and dredge volumes anticipated

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:5: • A change of dredging plant form Trailing Suction Hopper Dredger (TSHD) and Back Hoe

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:5: Dredger (BHD), to Cutter Suction Dredger (CSD) for the majority of the dredging works (all

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:5: • A slight re-alignment of the dredge profile in the turning circle (and dredging by CSD as

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:6: • An increase in the dredge volumes due to a proposed variation to the marine licence

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:6: • A change of dredging plant form TSHD and BHD, to CSD for the majority of the dredging

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:6: • A slight reduction in the area to be dredged in the Phase 2 plan area near the mudflat

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:6: (North Bank upriver end of project) – the new dredge area is reduced to avoid disturbing

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:6: • A slight re-alignment of the dredge profile in the turning circle (and dredging by CSD as

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:6: • Reduced time for the dredging component of the project (efficiencies from using CSD);

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:6: • The CSD will be less manoeuvrable than TSHDs on site, as anchored while dredging.

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:6: PHASE 1 UNDERTAKEN BY CUTTER SUCTION DREDGER

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:6:only and undertaken by Cutter Suction Dredger would remain acceptable.

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:7:The estimated duration, number of movements and dredge volumes for the original proposal (Phase

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:7:Table 1: Original Estimated Construction Vessel Movements and Dredge Volumes – Phase 1 Only

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:7: No. of Weeks Movements Phase 1 Dredge

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:7: Dredging

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:7:Revised dredge volumes under the most recently amended proposals are shown in Table 2 and revised

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:7:Table 2: Revised Phase 1 Dredge Volumes (Source: Van Oord)

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:7:Total dredging volume 1,235,000

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:8:Dredge cycles per week 22 14

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:8:bulk dredging)

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:8:It is clear from Table 4 above, that the revised proposals will result in a significant reduction in dredge

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:8:(related to the dredging vessels) is greatly reduced (the frequency with which hazards may be realised

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:8:is reduced), both as a result of less vessel transits from the dredge areas to the disposal areas at sea,

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:9:In terms of the dredge operation itself, the utilisation of CSD vessels means that during operations the

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:9:dredger will be anchored using a combination of anchors / cables and a “spud” on the dredger.

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:9:movements. When other traffic passes, the anchor cables van be lowered to the seabed and dredging

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:9:However, should it be required to make full use of the turning circle for shipping during dredging

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:9:undertaken for the client, to quantify the navigational impact of using a Cutter Suction dredger only

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:9:adopt a hybrid dredging approach (for example, mainly CSD, but also some BHD / THSD excavations),

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:10:The proposed changes to dredge methodologies and areas have been re-assessed, and it is concluded,

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:10:traffic due to the use of a cutter suction dredger and two large barges, instead of multiple smaller

MLA_2020_00506-22UK1862_SouthBankTees_NRA_Addendum_Issue_01-50.pdf:10:dredging vessels.

MLA_2020_00506-Returns-56.pdf:1: hours before the Dredging

MLA_2020_00506-Returns-56.pdf:1: commencement of the Owner: Foyle and Marine Dredging -1 no. Safety/

MLA_2020_00506-Returns-56.pdf:1: A Vessel Owner: Foyle and Marine Dredging -

MLA_2020_00506-Returns-56.pdf:1: Vessel Owner: Foyle and Marine Dredging

MLA_2020_00506-Returns-56.pdf:2: dredging only, rather than 'any works'. Please

MLA_2020_00506-Returns-56.pdf:3:Rejected Rejected The dredging activities approved by this licence may not

MLA_2020_00506-Returns-56.pdf:3: dredging works commencing.

MLA_2020_00506-Returns-56.pdf:3: dredge campaign

MLA_2020_00506-Returns-56.pdf:3:Open Open Pre and post bathymetric dredge surveys must be

MLA_2020_00506-Returns-56.pdf:3: R9.2 Within 4 weeks of calculation within 4 weeks of completion of each dredge

MLA_2020_00506-Returns-56.pdf:3: dredge campaign

MLA_2020_00506-Returns-56.pdf:3: dredge campaign

MLA_2020_00506-Returns-56.pdf:4: dredging campaign 5.2.13 of the marine licence for Phase 1 of the

MLA_2020_00506-Returns-56.pdf:4: the proposed start date of capital dredging and disposal

MLA_2020_00506-Returns-56.pdf:4: start date of capital dredging and disposal: • Written

MLA_2020_00506-Returns-56.pdf:4: confirmation that disposal of dredged material from the

MLA_2020_00506-Returns-56.pdf:4: no single phase of the capital dredging and disposal

MLA_2020_00506-Returns-56.pdf:4: of dredged material to be disposed would not exceed

MLA_2020_00506-Returns-56.pdf:4: dredging and disposal from South Bank Quay could

MLA_2020_00506-Returns-56.pdf:4: capital dredging and disposal for the two projects could

MLA_2020_00506-Returns-56.pdf:4: offshore disposal should it be apparent that the dredging

MLA_2020_00506-Returns-56.pdf:4: (aggregated) quantity of dredged material to be disposed

MLA_2020_00506-Returns-56.pdf:4: of dredged material.

MLA_2020_00506-Returns-56.pdf:5:MLA/2020/00506/R13 In advance of July of any Dredging permission (17/02/2022) on and in response to your email

MLA_2020_00506-Returns-56.pdf:5:Rejected Last Received No dredging not covered under statutory harbour

MLA_2020_00506-Returns-56.pdf:5: maintenance dredging to proceed during the

MLA_2020_00506-Returns-56.pdf:5: dredge campaign is taking place at this time. No other

MLA_2020_00506-Returns-56.pdf:5: dredging will take place on the River Tees during this

MLA_2020_00506-Returns-56.pdf:5: dredging operation during 1st July to 31st August

MLA_2020_00506-Returns-56.pdf:5: prior to the dredging activity, as a minimum, monitored

MLA_2020_00506-Returns-56.pdf:5: every hour during the dredging activity. If a drop of 1m/

MLA_2020_00506-Returns-56.pdf:5: g of dissolved oxygen is observed, than the dredging

MLA_2020_00506-Returns-56.pdf:6: remedial dredging

MLA_2020_00506-Returns-56.pdf:6: and consultation on by Schedule 8 has been dredged, surface grabs for

MLA_2020_00506-Returns-56.pdf:6: updated Sampling samples within the area adjacent to the dredged area

MLA_2020_00506-Returns-56.pdf:6: remedial dredging.The exclusion zone may be reduced

MLA_2020_00506-Returns-56.pdf:6: commencement of the Dredging 2 no. tugs - Vessel names: Seal Carr

MLA_2020_00506-Returns-56.pdf:6: and Marine Dredging 1 no. Backhoe dredger -

MLA_2020_00506-Returns-56.pdf:6: Vessel owner: Foyle and Marine Dredging 1 no.

MLA_2020_00506-Returns-56.pdf:6: Foyle and Marine Dredging

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:1:within the range experienced with passing vessels, although it will be sustained for as long as dredging is

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:1:predicted to last for approximately four weeks”. Please can the duration of the proposed dredging works

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:1:The indicative durations of the proposed dredging works are detailed in Section 3.6.1 of the EIA Report.

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:1:The proposed dredge can be summarised as follows:

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:1: • Removal of soft material above -5m bCD using a backhoe dredger (approximately four weeks).

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:1: • Removal of soft material below -5m bCD using a backhoe dredger and a TSHD (approximately

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:1: • Removal of soft material in the turning circle using a backhoe dredger and a TSHD (approximately

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:1: • Removal of hard material using a backhoe dredger (approximately 10 weeks).

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:1:The proposed dredging activities are therefore predicted to take in the order of five months to complete.

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:2:required is the maximum total bed level change from the cumulative disposal of the entire dredge load.

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:2:plumes from separate disposal activities over the whole dredging campaign.

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:2:As can be seen from the modelling, a very comprehensive dredging and disposal schedule was developed.

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:2:dredge load be presented and discussed with respect to the licensed disposal site. Given the modelling

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:4:potentially accelerated deposition due to flow velocity reduction impact the future dredge requirement in

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:5:increase in annual maintenance dredge requirement at this location, but that this is not expected to be

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:5:maintenance dredging requirement is not expected to be significant and would be managed within existing

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:5:maintenance dredging and offshore disposal regimes.

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:5:in terms of actual flow speeds at the site, and it appears that this may be up to 50% reduction? Dredging

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:5:relative to the present. The dredged pocket and area of affected flows appears to occupy the full width of

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:5: estuary containing the proposed dredging/quay. The effect can, at some tidal states (but not all), be

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:5: dredging. After the scheme is in place there will be no change in the local process (i.e. it will not

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:5: requirement for maintenance dredging. There will be no direct change in baseline hydrodynamics

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:5:2. We have not claimed that the dredging of the Tees Dock turning circle will have “no hydrodynamic

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:15: • Revised modelling of the plume that takes into account other dredging activity which may be

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:15:specifically covers the potential effects on water quality as a result of dredging from all projects which were

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:15:dredging for each scheme coincide. In reality, this is highly unlikely to occur. Under such circumstances,

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:timing of the projects and their respective programmes of capital dredging will coincide to result in a

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:extents across the estuary and navigational safety is unlikely to support dredging on different sides of the

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:suspended sediment from any stage of the dredging). It is important to note that this type of figure does

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:river channel that will become affected by a plume at some point during the dredging campaign (in some

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:Clarification on the proposed exact times (i.e. months) of dredging works so that the likelihood of potential

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:The applicant is not able to define months within which the dredge is to be undertaken (as this is dependent

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:a worst case basis whereby the dredge and disposal could be undertaken at any time of the year. This

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:Recommend that the you consider the feasibility of undertaking dredging works outside the peak upstream

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:The applicant is not able to define months within which the dredge is to be undertaken (as this is dependent

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:a worst case basis whereby the dredge and disposal could be undertaken at any time of the year. This

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:provides the greatest flexibility to the applicant. It would not be desirable to restrict the proposed dredge

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:Report, as well as the fact that PD Teesport undertake maintenance dredging on almost a daily basis all

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:Cefas recommend that you present a revised sediment dispersion model that includes the dredging

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:proposed for NGCT and regular maintenance dredging (i.e. dredge material quantities, times and

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:dredging to one side of the river at a time and better determine the likelihood of potential cumulative effects

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:16:maintenance dredging could be carried out at various locations depending on need.

MLA_2020_00506-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-25.pdf:19: 2.5. Dredge and disposal

MLA_2020_00506-Marine Coordinate Schedules.pdf:2:Tees Dock turning circle - dredge

MLA_2020_00506-Marine Coordinate Schedules.pdf:4:Channel and berth - dredge and excavation

MLA_2020_00506-Decision Letter (Marine)-57.pdf:1:methodology element of Activity 1.1, 2.1 and 3.1 to include cutter suction dredger,

MLA_2020_00506-Decision Letter (Marine)-57.pdf:1:(ii) to amend the dredge depth to 11.5m BCD in Activity 2.1 and 3.1 in Section 4 of

MLA_2020_00506-Decision Letter (Marine)-57.pdf:1:the licence, (iii) modify the coordinates of the dredging boundaries currently detailed

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:1: • An additional 29,000m3 of material to be dredged from the Tees Dock turning circle;

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:1: • An additional 416,000m3 of material to be dredged from the channel and berth pocket (which

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:1: the berth pocket and the licensed activities relating to dredging to account for dredging

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:2:this section”. I cannot currently decide whether the changes to the dredging amounts and

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:2:dredged under MLV2. Therefore the final profile of the berth will remain the same as was assessed. As

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:3:The area applied to be dredged instead of excavated by land-based machinery under MLV2 is an area of

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:3:material and dispose of this to land, then dredge the geological material for disposal at the licenced Tees

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:3:impacts associated with placement of dredged material at random locations within the disposal

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:5:alteration of riverbed habitat as a result of dredging activities within this section. In my opinion, this is not

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:5:habitat impacted by the planned activities (i.e., including riverbed habitat affected by dredging) is not

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:5:Given that MLV2 is proposing that an additional 445,000m3 of material be dredged (29,000m3 of

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:6:does not include numerical values of the area of habitat impacted, nor the dredge volumes permitted at

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:6:case scenarios of the total area of habitat lost or altered (inclusive of dredging activity and other

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:6:and associated dredging activity has changed between the original ES and subsequent variations (an

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:6: the method of removing bank material from land-based excavation to dredging; and

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:6: • The area applied to be dredged instead of excavated by land-based machinery under MLV2 is

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:6: the made ground material and dispose of this to land, then dredge the geological material for

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:6:additional dredged material is likely to compare with the suspended sediment concentrations and plumes

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:7:agree that it remains unclear whether the combined dredge volumes of Phase 1 and Phase 2 (inclusive

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:7:of the additional dredge quantities proposed under MLV2) will remain within the scope of the original EIA

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:7:was prepared in support of MLV1 and it is unclear whether the additional dredge quantities proposed

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:7:the most up to date modelling which take into account the additional dredge volumes. Please refer to

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:7:additional dredge volumes.

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:7:excavated from the landside but is now included within the additional dredge and disposal volumes within

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:7:MLV2. It also used the same dredge methodology to be used to remove the additional volume of

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:7:sediment applied for within MLV2. Therefore, given that the material type and dredge methodology has

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:7:Table 4.1 Summary of dredge, disposal and landside material excavation volumes assessed and with the variation

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:7:requests. Note the difference between dredge and disposal volumes arises due to the requirement to dispose of an

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:7:area of contaminated dredge material to land.

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:7: Dredging Total Total 820,0001 Total 980,000 Same as EIA Total 1,347,000

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:7: channel & berth dredging

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:8:potential for cumulative dredge and disposal volumes of Phase 1 and Phase 2 of the South Bank Quay

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:8:project to exceed the total dredge and disposal volumes assessed within the original EIA Report. It was

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:8:agreed that, in the event cumulative dredge and disposal volumes associated with Phase 1 and Phase 2

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:8:Applicant will liaise with the MMO to understand what is required to apply for increased dredge and

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:Modelling Technical Note submitted to support Variation 1, the capital dredging with the CSD will take

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:which an overview of the proposed dredging schedule for MLV1 is presented in section 3.4.2. The

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:technical note details how 1.2 million m3 of bed material is to be dredged over the nine-week dredging

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:period, however, the dredging schedule provided relates to dredging activities permitted under MLV1. To

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:my understanding, as changes to the quantity of material to be dredged were not requested under MLV1,

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:the dredging schedule provided does not reflect the additional dredge quantities proposed under the

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:current variation (MLV2). It remains unclear as to whether a higher intensity dredging schedule will be

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:implemented in order for the dredging to be completed within the quoted 9 week timeframe, or whether a

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:longer dredging schedule will be required to remove the new total volume of material (i.e. including the

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:they expect to remove the total dredge volume for Phase 1 of the project (which clearly indicates the

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:additional volume has already been accommodated within the dredging schedule provided, if this is the

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:Please present a table detailing how you expect to remove the total dredge volume for Phase 1 of the

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:project (which clearly indicates the additional volumes proposed under MLV2). The dredging schedule

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:but this table should not be recycled. There must be clarification of where or how the additional dredge

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:material proposed under MLV2 is accounted for within the dredging schedule provided in Table 3-3, if the

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:inclusion of currently landside soils (i.e. soils within the riverbank) within the proposed dredging

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:anticipated programme to undertake dredging of the additional volume applied for under MLV2 (weather

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:9:dredging elements (including the Northern Gateway Container Terminal (NGCT), Anglo American

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:10:condition 5.2.13 considers that simultaneous capital dredging campaigns by SBQ and the NGCT to

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:10:cumulative impacts to fish from simultaneous dredging activity within the Tees estuary as the impacts to

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:10:fish associated with dredging (i.e., removal of material by dredging) are different to those associated with

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:10:the Applicant to liaise with other operators, spatially restrict dredging to one side of the channel at any

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:10:one time, impose a seasonal restriction on dredging activity, and carry out a scheme of monitoring.

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:10:project works into the context of other activity (particularly dredging activity) within the estuary.

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:10:1.34million m3 of dredged sediment cumulatively in any given month with Northern Gateway Container

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:10:to the best of their knowledge the Applicant is not aware that any other capital dredging schemes on the

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:10:River Tees overlap with the capital dredging campaign being undertaken for Phase 1 of the South Bank

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:10:MMO confirming that no capital dredge schemes are anticipated to come forward within the timescales of

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:10:the South Bank Quay Phase 1 capital dredge campaign.

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:10:clear that dredging is frequently undertaken within the Tees estuary, whether in direct association with

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:10:any given development or through routine maintenance dredging. In my opinion, the evidence provided

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:11: lost /altered by dredging

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:11: Dredging Activity

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:11: dredged from River Tees

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:14:Dredging Concept Design Dredging Proposal –

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:14: Modifications to dredge area and depths to suit CSD method MLV1

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:14: Increase in dredge and disposal volume (see green area) MLV2

MLA_2020_00506-PC1084-RHD-EN-SB-ME-EV-1144-MLA.2022.00506.2 South Bank Quay FIR 20 Response.pdf:15:Dredging Concept Design Dredging Proposal –

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:1:‘The dredging activities approved by this licence may not commence until such a time as a scheme of

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:1:submitted to MMO for written confirmation prior to dredging works commencing.

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:1:Reason: To monitor impacts to water quality during dredging.

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:1:dredging associated with the South Bank Quay project that sediment suspended within the dredging

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:1:plumes will fall to the riverbed, either soon after disturbance or spillage during the dredging operation (for

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:2:Figure 2.1 Maximum enhanced suspended solids concentrations (near surface layer) arising from dredging

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:2:Monitoring will be undertaken for the entire duration of dredge activities associated with Phase 1 of the

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:2:monitoring buoys will be installed as soon as possible in advance of the proposed dredging works as shown

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:2: • Site 1: Located outside the predicted zone of influence (to act as a control during dredging within

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:2: • Site 2: Located within the predicted plume associated with dredging in the turning circle.

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:2: • Site 3: Located within the predicted plume associated with dredging in the quay area.

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:3: • Site 4: Located outside of the predicted zone of influence (to act as a control during dredging within

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:3:below the surface. It should be noted that it is not practicable to locate monitoring buoys within the dredge

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:3:footprint as they would have to be removed to undertake the dredging works, therefore the locations of

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:3:monitoring buoys are proposed to be located close to the boundaries of the dredge footprint (noting that

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:4:commencement of dredging and remain in place during the dredging, plus a minimum period of one week

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:4:(seven consecutive days) after dredging operations have been completed. This timeframe is considered

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:4:one week of monitoring post-completion of the dredge is likely to be adequate to illustrate a return to

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:4:All recorded data will be collated and summarised in a short report alongside dredging activity logs. The

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:4: • Dredging activity logs.

PC1084-RHD-SB-EN-NT-EV-1124 Updated Scheme of Monitoring - May 2022.pdf:4:data report will be provided within two months of dredging activities being completed.

MLA_2020_00506-PC1084-RHD-SB-DN-SK-C-0014-P02-51.pdf:1: PROPOSED MMO LICENSE DREDGE BOUNDARY

MLA_2020_00506-PC1084-RHD-SB-DN-SK-C-0014-P02-51.pdf:1: EXISTING MMO LICENSE DREDGE BOUNDARY

MLA_2020_00506-PC1084-RHD-SB-DN-SK-C-0014-P02-51.pdf:1: REMEDIAL CONTAMINATED DREDGING

MLA_2020_00506-PC1084-RHD-SB-DN-SK-C-0014-P02-51.pdf:1: DREDGING LICENSE Def

MLA_2020_00506-PC1084-RHD-SB-DN-SK-C-0014-P02-51.pdf:1: MMO LICENSE DREDGE BOUDARY P02 10.05.22 FOR APPROVAL MM MG JE

MLA_2020_00506-PC1084-RHD-SB-DN-SK-C-0014-P02-51.pdf:1: DREDGE BOUNDARY

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:3:3.4 Dredging Methodology and Schedule 6

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:3:3.4.1 Dredging Method 7

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:3:3.4.2 Dredging Schedule 8

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:3:3.5 CSD Dredging and Disposal Cycle 10

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:3:3.6.2 River Dredging 12

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:3:Table 3-1: Soil Types to be dredged 5

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:3:Table 3-2: Particle size distribution for dredged soil types 5

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:3:Table 3-3: Dredging Schedule Overview 8

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:3:Figure 1-2 Footprint of dredging assessed in the EIA report (grey areas for Phases 1 and 2) and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:3:Figure 3-1 Dredging Layout 6

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:3:Figure 3-2 South Bank Wharf Dredge Site and Tees Bay C Offshore Disposal Site 7

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:4:Figure 3-3 Sediment release schedule for dredger 9

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:4:dredging activities under the previously assessed project [Phases 1 and 2, reproduced from EIA

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:4:from dredging activities under the previously assessed project [Phases 1 and 2, reproduced from

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:4:dredging activities under the proposed project variation to Phase 1 updated modelling 14

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:4:from dredging activities under the proposed project variation to Phase 1 updated modelling 15

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:4:Figure 3-9 Maximum river bed thickness change due to sediment deposition arising from dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:4:dredging activities under the proposed project variation to Phase 1 updated modelling 17

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:5: movement of suspended sediment from the proposed dredging and disposal activities by coupling with

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:5: dredging and disposal schedule.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:6:condition that prohibits dredging in any year from 1st July to 31st August (inclusive) (Condition 5.2.8):

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:6: • Change in dredger type from a combination of trailer suction hooper dredger (TSHD) and backhoe

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:6: dredger (BH) to use of a cutter suction dredger (CSD) by the appointed Contractor – this has the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:6: effect of increasing the production rate of dredging (and associated disposal) and changing the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:6: potential spill rate of sediment from the dredging process;

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:6: • Increasing capacity of the vessel to be used for disposal of dredged material at the offshore disposal

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:6: • Incorporating into the assessments a better definition of the material type to be dredged based on

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:6: • Incorporating very slight change in the extent of the dredging within the turning area, from a semi-

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:7: • Inclusion of currently landside soils (i.e. soils within the riverbank) within the proposed dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:7:reducing the total volume of material to be dredged and disposed from 1.8 million m3 (Phase 1 and 2 total)

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:7:by dredging (Figure 1-2). It should be noted that STDL is still planning on constructing Phase 2 of the South

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:7:Figure 1-2 Footprint of dredging assessed in the EIA report (grey areas for Phases 1 and 2) and in updated assessments (red

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:8: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning area and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:8: dredging.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:8: of sediment. In the main channel the deposition will require periodic dredging to maintain the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:8: • There is no measurable change caused by the capital dredging at the Tees Dock turning area.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:8:so any such effects from dredging on the tidal regime during Phase 1 would be lesser than those previously

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:8:assessed. Also the very slight change in extent of dredging within the turning area from a semi-circular to

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:9:transport effects of the proposed dredging of the channel and the berth pocket in front of the new quay wall,

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:9:Available soil data indicates that it is expected that the dredging material consists of different soil types. A

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:9:summary of the expected dredging soil types based on the ground investigation data (Definitive Feasibility

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:9:between soft and hard material because it is expected to influence the choice of dredging equipment to be

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:9:Table 3-1: Soil Types to be dredged

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:9:Table 3-2: Particle size distribution for dredged soil types

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:9:The dredging layout for Phase 1 is shown in Figure 3-1. The river channel in front of the South Bank Wharf

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:9:as well as part of the Tees Dock turning area will be dredged to a level of -11mCD. The berth pocket in front

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:9:of the new quay has a design bed level of -13.6mCD, but the dredge volumes considered in the dispersion

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:10:model include an extra two metres of dredge material down to a bed level of -15.6mCD to allow for a rock

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:10:dredging schedule. Due to the uncertainty of the time when the dredging will take place, the worst scenario

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:10: Figure 3-1 Dredging Layout

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:10:3.4 Dredging Methodology and Schedule

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:10:The dredging method, dredging schedule and details of the sediment release settings for the sediment

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:11:3.4.1 Dredging Method

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:11:The sediment will be dredged using a Cutter Suction Dredger (CSD).

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:11:All dredged material will be taken to the Tees Bay C offshore disposal site which is approximately 18km (or

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:11: Figure 3-2 South Bank Wharf Dredge Site and Tees Bay C Offshore Disposal Site

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:12:3.4.2 Dredging Schedule

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:12:The dredging schedule and quantity for the CSD are described in Table 3-3. The dredging will begin with

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:12:A total of 1.2 million m3 of bed material will be dredged over a period of nine weeks. The simulation covers

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:12:the entire dredging period and the movement of dredger and transport barges were tracked for the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:12:processes of dredging, sailing, disposal and downtime for bad weather, refuelling, and equipment

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:12:maintenance. Figure 3-3 shows the sediment release schedules for the dredger at the South Bank Quay

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:12:site and Tees Dock turning area (i.e. the Phase 1 dredge footprint), whilst and Figure 3-4 shows the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:12:The disposal schedule will follow the same pattern as the dredging schedule in that the barge filled by the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:12:Table 3-3: Dredging Schedule Overview

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:12:Loading (Dredge) time

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:12:Total dredging cycle time

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:12:Dredging volume (m3) 305,369 460,054 147,136 106,304 142,465 73,171

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:12:Dredging time (weeks) 2.3 3.1 1.1 0.7 1.1 0.5

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:13: Figure 3-3 Sediment release schedule for dredger

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:14:The following assumptions have been made for the simulation of sediment plumes arising from dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:14:The CSD will operate at full capacity, with two barges being deployed for transport of the dredged soil

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:14:material to the disposal site. The dredger will release material from along a single line along each of the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:14:is a conservative approach for worst case plume effect. The dredger will actually move around the dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:14:3.5 CSD Dredging and Disposal Cycle

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:14:This section describes the CSD dredge and disposal cycle for the two different soil types. The sediment

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:14:release rate, sediment loss rate and discharge sediment rate are the same for each of the dredge areas,

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:14:namely berth pocket, channel and turning area. They differ in dredge and disposal duration due to the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:14:The CSD dredger will dredge the soft surface layer material above a level of -2mCD by operating

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:14:site. The dredger disperses sediment into the water column at a sediment release rate of 1.11 kg/s. The

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:15:The CSD will dredge for 50 minutes to load one barge, the barge will then sail for 90 minutes to the disposal

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:15:minutes in total. The total time of one dredge and disposal cycle takes 270 minutes.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:15:The CSD dredge and disposal cycle for the soft material will take 2.29 weeks for 305,369 m3 in the berth,

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:15:The CSD dredger will dredge the hard material below a level of -2mCD by operating continuously filling a

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:15:barge, with two barges being in operation sailing back and forth to the offshore disposal site. The dredger

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:15:The CSD will dredge for 160 minutes to load one barge, the barge will then sail for 90 minutes to the disposal

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:15:minutes in total. The total time of one dredge and disposal cycle takes 380 minutes.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:15:The CSD dredge and disposal cycle for the hard material will take 3.07 weeks for 460,054 m3 in the berth,

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:15:discussed in turn for the river dredging and offshore disposal activities. Note that all modelling plots in the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:15:any stage of the river dredging or offshore disposal operations during the relevant phase of the dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:15:the nine weeks of dredging or disposal activities (in some areas this will be on a single occasion, in other

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:16:3.6.2 River Dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:16:The combined maximum ‘zone of influence’ from all stages of the dredging activities associated with the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:16:only of the dredging) in Error! Reference source not found. (near-bed layer) and Figure 3-8 (near-surface

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:16:are generally slightly lower than near-bed effects, and during the dredging, all plume effects are confined to

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:16:dredging of the berthing pocket and river channel in the vicinity of the new quay are confined to the right

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:16:bank (south of centre line) portion of the channel’s width, whilst all plumes associated with dredging of the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:17: Figure 3-5 Maximum enhanced suspended sediment concentrations (near-bed layer) arising from dredging activities under the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:18:Figure 3-6 Maximum enhanced suspended sediment concentrations (near-surface layer)arising from dredging activities under the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:19:material being dredged, the shorter overall dredging programme, the smaller area within which dredging will

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:19:and BH dredgers.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:19:Figure 3-7 Maximum enhanced suspended sediment concentrations (near-bed layer) arising from dredging activities under the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:20: Figure 3-8 Maximum enhanced suspended sediment concentrations (near-surface layer) arising from dredging activities under the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:21:bed thickness caused by the deposition of sediment from the plumes created by river dredging. It can be

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:21:seen that much of the sediment falls to the bed within the dredged areas (from where it will be re-dredged

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:21: Figure 3-9 Maximum river bed thickness change due to sediment deposition arising from dredging activities under the previously

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:22:to within the footprint of the dredged areas, from where the re-deposited sediment will be dredged and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:22: Figure 3-10 Maximum river bed thickness change due to sediment deposition arising from dredging activities under the proposed

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:22:licensed for the disposal of dredged sediment and is routinely monitored as part of a national programme.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:22:associated with the dredging programme has been plotted in Figure 3-11 for the near-bed layer of the water

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:24:with the results for the river dredging, the updated modelling results show that both the magnitude and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:29:The river dredging and offshore disposal activities associated with the proposed project variations will both

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:29:combined, so any such effects from dredging on the tidal regime during Phase 1 would be lesser than those

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-0001 Technical Note - Hydrodynamic and Sediment Plume Modelling_Final-49.pdf:29:previously assessed. Also the very slight change in extent of dredging within the turning area from a semi-

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:2: quantities were within the scope previously assessed and that the dredge depth had lowered to beyond that previously assessed.

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:2: additionally stated that “…total dredge volume does now exceed the total dredge volume assessed within the ES. However, the material to

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:2: be dredged was always going to be removed…”, which still seems to be slightly contradictory.

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:2: Previous advice also noted that the dredge depth increase to -15.9m (an increase of 0.3m beyond that assessed in the ES) did exceed the

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:2: unlikely to significantly alter the hydrodynamic consequences (and hence the impact significance) of the berth dredge.

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:3:dredge and disposal quantities (of sand and clay) proposed are in line with and within the scope of the quantities permitted and impacts

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:3:to be associated with the increased dredge volumes and recognises that there may be resulting secondary effects on fish receptors. The

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:3:clay to be dredged from the channel and berth pocket, increasing from 165,000 m3 to 581,000 m3 (as per document 5). I note from

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:4:as a result of dredging activity, are known to impact fish ecology and physiology in a number of ways (please refer to Annex 2 for details). It

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:4:discussion of how the additional dredged material is likely to compare with the suspended sediment concentrations and plumes modelled

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:4:removal of sediments, using both land-based excavators and cutter suction dredging, in close proximity to the contaminated material

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:4:clarify whether any mitigation associated with dredging activity in proximity to the contaminated material boundary is proposed to minimise

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:Dredging Method

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:the ‘made ground’ within the extended dredge area will be removed using land-based excavators and recovered to shore. The remaining clay

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:material will be removed as part of the capital dredging campaign using a cutter suction dredger. Use of cutter suction dredging machinery

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:arising from this method of dredging were not included in the original project EIA. To the best of my knowledge, Cefas fisheries advisors

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:To my understanding, in cutter suction dredging, the cutter head works to loosen material by boring through the riverbed in a rotational

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:dredging methods which were assessed in the original project EIA, whereby material is removed by being scooped up by a hydraulic

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:excavator (backhoe dredging) or where material is collected by an enclosed drag head and drawn into the suction pipe (trailing suction

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:hopper dredging). By comparison, the rotational cutting of sediment by cutter suction dredging may have greater potential to release

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:dredging in the original project EIA (document 11) and Cefas fisheries advisors were not consulted in relation to the change in methodology,

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:it is unclear to me whether or not the impacts to fish receptors associated with this cutter suction dredging are in line with those originally

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:could please clarify how the impacts associated with cutter suction dredging compare to methods already assessed within the original EIA. It

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:would also be useful if the Applicant could please clarify whether any mitigation associated with cutter suction dredging (such as shielding or

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:Dredging Schedule

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:Finally, in relation to an amended dredging campaign schedule, the Applicant states in document 6 that “whilst MLV marine licence variation

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:Plume Modelling report. As such, there is no change to the required durations of dredging as proposed and assessed as part of MLV1.” As

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:whether the dredging schedule related to this current variation is consistent with that assessed within the original EIA. In the original project

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:EIA (document 11, section 3.9), it was indicated that capital dredging activities for Phases 1 and 2 of the South Bank Quay project had an

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:5:expected duration of 4-5 months if combined (or 2 months and 3 months respectively if completed separately), assuming all dredging plant

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:6:day for 7 days each week for the duration. In my opinion, this represents an already high intensity dredging programme and similar concerns

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:6:Dock turning circle, it may be that an even higher intensity dredging schedule will be implemented in order for the works to be completed

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:6:within the original timeframe of 4-5 months. Alternatively, a longer dredging schedule may be necessary to remove the total volume of

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:6:material permitted under this licence. Additional information is needed from the Applicant in order to fully understand how the dredging

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:6:I would reiterate that there remains considerable potential for cumulative impacts to arise from the dredging works at South Bank Quay with

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:6:other work involving dredging activities within the River Tees (such as the Northern Gateway Container Terminal (NGCT), the Anglo-

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:6:American Harbour Facilities project and ongoing maintenance dredging works), as raised in previous consultations1. I recognise that the

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:6:dredging to one side of the channel at any one time, and carry out a scheme of monitoring in order to ensure that potential cumulative effects

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:6:comments2. In previous fisheries advice1, advisors highlighted that the sediment plume arising from the proposed dredging regime had the

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:6:potential to influence a cross sectional area of river and be observed for the whole dredging continuous period of 4 months. It was noted that

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:6:anticipated dredging schedule, please can the Applicant provide further information on how the South Bank Quay works fit within the wider

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:6:nearby works with dredging elements would suffice at this stage.

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:6:Applicant to support their request to vary the current marine licence to incorporate additional dredging activities. Further clarification is

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:7: scheduling of the dredging works under the proposed variation will align other ongoing dredging works within the Tees River, as concurrent

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:7: dredging campaigns are likely to generate cumulative impacts which have the potential to negatively impact migratory fish receptors.

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:7: 3. MMO require a more detailed reassessment or discussion of how the additional dredged material is likely to compare with the

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:7: 4. MMO require clarification whether any additional mitigation (outside of that detailed in condition 5.2.11) associated with dredging activity

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:7: 5. MMO require clarification whether any mitigation associated with cutter suction dredging (such as shielding or enclosing of the cutter

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:7: 6. MMO require additional information to fully understand how the dredging schedule has or will be amended to incorporate the removal of

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:7: the River Tees. An overview or timeline of the project alongside other relevant ongoing and nearby works with dredging elements would

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:8: material being permitted to be dredged and disposed of at sea. Without this information I cannot comment on whether the impacts on

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:8: of material being permitted to be dredged and disposed of at sea.

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:10:dredging. Construction Industry Research and Information Association (CIRIA) Report C547.

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:11:Annex 2 Potential impacts to marine and migratory fish from dredging and disposal of marine sediments

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:11:again upon their return to the sea after spawning. Elevated concentrations of suspended sediment resulting from dredging and disposal of

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:11: VI. Entrainment of demersal and benthic fish, fish eggs and larvae taken up through the drag head of the dredger.

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:11:VII. Potential disturbance caused by underwater noise from the dredging process.

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:11:Settlement of sediment around areas of dredging and disposal can have the following impacts:

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:11: IV. Exposure to contaminants contained within dredged sediment.

MLA_2020_00506-MLA_2020_00506_2_RFI 19_Cefas Comments_MMO requested updates.pdf:12:VI. Resuspension of sediments resulting from dredging can smother organisms and hinder growth, feeding and survival rates (Gilmour

MLA_2020_00506-South Bank Quay - Enabling Works Methodology-54.pdf:1:dredging of material not suitable for disposal at sea. The enabling works will consist of the following:

MLA_2020_00506-South Bank Quay - Enabling Works Methodology-54.pdf:1:Once dredging of material not suitable for disposal at sea is complete the process outlined above will

MLA_2020_00506-MLV2 Options Paper - Final.pdf:1: 1. Dredging of the Berth Pocket to a level of 15.9m bCD. The design dredge level within the berth

MLA_2020_00506-MLV2 Options Paper - Final.pdf:1: of dredging tolerance in the Berth Pocket, due to the dredging equipment being utilised for

MLA_2020_00506-MLV2 Options Paper - Final.pdf:1: the works. To incorporate this change to the dredge depth of 15.9m bCD, section ‘Site 5’ under

MLA_2020_00506-MLV2 Options Paper - Final.pdf:1: ‘Activity 5.1’ will also need to be updated to take cognisance of the dredge depth being 15.9m

MLA_2020_00506-MLV2 Options Paper - Final.pdf:1: 2. An increase in the quantity of material being permitted to be dredged and disposed of at sea.

MLA_2020_00506-MLV2 Options Paper - Final.pdf:1: The additional material for disposal at sea is to be dredged from the area highlighted green in

MLA_2020_00506-MLV2 Options Paper - Final.pdf:1: material shall be removed as part of the capital dredging campaign and disposed of at sea.

MLA_2020_00506-MLV2 Options Paper - Final.pdf:2:Adopting this approach will make the use of the Cutter Suction Dredger more economically viable but

MLA_2020_00506-MLV2 Options Paper - Final.pdf:2: - Anticipated efficiencies in the programme for the capital dredging campaign

MLA_2020_00506-MLV2 Options Paper - Final.pdf:3: dredged and disposed of to sea and that a full suite of analyses, including polybrominated

MLA_2020_00506-MLV2 Options Paper - Final.pdf:3: guidelines which recommend seven to fifteen stations for dredges between 100,000 m³ and

MLA_2020_00506-MLV2 Options Paper - Final.pdf:9:5.2 Material to be Dredged and Disposed of Offshore

MLA_2020_00506-MLV2 Options Paper - Final.pdf:9:and within Table 4, will be dredged using a Trailer Suction Hopper Dredger (TSHD), Backhoe Dredger

MLA_2020_00506-MLV2 Options Paper - Final.pdf:9:(BHD) or Cutter Suction Dredger (CSD), and disposed of offshore. There is also a requirement for the

MLA_2020_00506-MLV2 Options Paper - Final.pdf:9:dredge depth to be increased to 15.9m bCD within the Berth Pocket, to allow for 500mm of dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:3:3.2.1 Direct loss of habitat due to capital dredging 23

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:3:3.2.2 Effects of increased suspended sediment concentrations during dredging on marine species and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:3:3.2.3 Effects of smothering following dredging on marine species and habitats 24

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:5:proposed scheme comprises demolition, capital dredging, offshore disposal of dredged material and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:6:recovered from 25 sampling stations across the proposed dredge footprint (Figure 2.1). Samples were

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:6:intervals to the maximum proposed dredge depth. Where the maximum proposed dredge depth exceeded

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:7: # VC-05 Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:11:to sea and that an enclosed grab or similar is used to dredge such material from this location to minimise

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:11:of sediment as the material is dredged. The results from this borehole (BH34) have therefore been excluded

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:11:concentrations across the rest of the proposed dredge footprint and the proposed means of dredging using

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:11:is elevated across the proposed dredge footprint, but the majority of exceedances are marginal only.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:11:organotin concentrations across the proposed dredge footprint do not exceed Action Level 1 (with many

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:12:locally in other samples from across the proposed dredge footprint (although none were present within the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:12:The marine elements of the proposed scheme (excluding offshore disposal of dredged material) are located

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:13:sediment losses from dredging equipment and concentrations of contaminants within the sediments to be

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:13:dredged to provide an indication of the amount of contamination that could be released into the water

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:13:solids released as a result of the proposed dredge to define the scale of water quality effects. It should be

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:14:The tool requires the input of predicted suspended solids concentrations arising from the dredge plume. For

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:14:levels of suspended solids over baseline during Stage 2 of the proposed dredging schedule, when the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:14:backhoe dredger and trailing suction hopper dredger would be working in parallel to dredge soft material

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:14:below -5m Chart Datum (CD) in the berth pocket and river channel. Stage 2 of the proposed dredge is

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:15:Figure 2.2 Stage 2 dredging results for suspended solids concentrations when dredger is located on the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:15:south-western dredging transect (taken from Section 6.5 of the EIA, Royal HaskoningDHV, 2020)

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:16:proposed dredge. For the organic parameters, the results indicate that for benzobfluoranthene, when

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:16:to be relatively localised to the dredging activity and suspended sediment concentrations reduce to typically

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:16:dredge situation) and therefore there is no headroom 2 for additional sources of this parameter.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:17:dredging.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:17:there is a possibility that some PAH parameters could exceed their respective EQS during capital dredging.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:17:concentrations of suspended solids; rather, they are predicted to remain in close proximity to the dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:17:of the total volume of dredged material comprises geological material (i.e. mudstone) which contains much

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:17:lower levels of contaminants, therefore the risk to EQS is only during dredging of the finer sediments in the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:17:An enclosed grab is proposed to dredge material in the vicinity of BH34 given the elevated concentrations

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:17:release of sediment as the material is dredged. No further mitigation measures are required. The residual

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:18:proposed dredge footprint. The least species-rich sample was GS12 with 19 species recorded; this sample

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:19: CS_06 Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:20:with individual worms noted at GS25 and GS26 (both upstream of the proposed dredge footprint) and 23

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:20:individuals at site GS14 (within the upstream end of the proposed dredge footprint).

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:21:within and adjacent to the proposed dredge footprint. Species recorded were from the taxonomic groups

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:21:dredge footprint at Tees Dock turning circle; this recorded 20 species (excluding fish). This trawl was also

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:24:and capital dredging, effects from increased suspended sediment concentrations, and effects from

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:25: loss of habitat due to capital dredging”

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:25: concentrations during dredging on marine dredging on marine species and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:26: loss of habitat due to capital dredging”

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:26: concentrations during dredging on marine dredging on marine species and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:27:3.2.1 Direct loss of habitat due to capital dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:27:pressures related to capital dredging, linked to habitat loss and disturbance (which is the same as the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:27:loss caused by capital dredging would be of minor adverse significance.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:27:3.2.2 Effects of increased suspended sediment concentrations during dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:27:suspended sediment during dredging is expected to be in the form of a narrow plume within the river, which

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:27:is localised and short-lived. The proposed dredging activity is not expected to cause an increase in

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:28:3.2.3 Effects of smothering following dredging on marine species and habitats

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:29:In terms of mitigation, the footprint of the dredge will be kept to what is absolutely necessary, in order to

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:30:circle and the upstream end of the proposed dredge footprint, at the locations marked BT01 to BT05 in

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:32: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:34: temporarily relocate due to the presence / noise of the dredge head, minimising the risk of entrainment. The

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:34:from dredging and (dredging); (dredging); negligible (dredging); negligible 4.2 and 4.3 confirms that the dominant species present in the Tees estuary remain unchanged to those reported

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:42:dredging / Minor adverse Minor adverse Minor adverse

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:45:exceedances to only short periods of time and are likely to be contained within the vicinity of the dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:45:deterioration in species composition and numbers following dredging, it is predicted that the sediment

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:47:completion of the additional assessment is use of an enclosed grab to dredge material in the vicinity of BH34

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:221: Levels for the disposal of dredged material are non-statutory guidelines for assessment of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:221: disposal of dredged materials at sea, against which reported contaminant concentrations

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:221: concern, whilst concentrations above Cefas Action Level 2 (AL2) indicate that dredged

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:311: physical disturbance from anthropogenic activities such as canalisation and dredging, which

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:312: industrial and municipal waste (e.g. sewage and dredged spoils), as well as urban and river

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:320: muddy substrates of dredged rivers (Blake, 1971), from Japan in mud deposits with other

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-16.pdf:324: issues in Seaton Channel, Holding basin, Dry Dock and Quays (dredge areas 1 to 4). A report to

MLA_2020_00506-MLV2 Options Paper - Final-61.pdf:1: 1. Dredging of the Berth Pocket to a level of 15.9m bCD. The design dredge level within the berth

MLA_2020_00506-MLV2 Options Paper - Final-61.pdf:1: of dredging tolerance in the Berth Pocket, due to the dredging equipment being utilised for

MLA_2020_00506-MLV2 Options Paper - Final-61.pdf:1: the works. To incorporate this change to the dredge depth of 15.9m bCD, section ‘Site 5’ under

MLA_2020_00506-MLV2 Options Paper - Final-61.pdf:1: ‘Activity 5.1’ will also need to be updated to take cognisance of the dredge depth being 15.9m

MLA_2020_00506-MLV2 Options Paper - Final-61.pdf:1: 2. An increase in the quantity of material being permitted to be dredged and disposed of at sea.

MLA_2020_00506-MLV2 Options Paper - Final-61.pdf:1: The additional material for disposal at sea is to be dredged from the area highlighted green in

MLA_2020_00506-MLV2 Options Paper - Final-61.pdf:1: material shall be removed as part of the capital dredging campaign and disposed of at sea.

MLA_2020_00506-MLV2 Options Paper - Final-61.pdf:2:Adopting this approach will make the use of the Cutter Suction Dredger more economically viable but

MLA_2020_00506-MLV2 Options Paper - Final-61.pdf:2: - Anticipated efficiencies in the programme for the capital dredging campaign

MLA_2020_00506-MLV2 Options Paper - Final-61.pdf:3: dredged and disposed of to sea and that a full suite of analyses, including polybrominated

MLA_2020_00506-MLV2 Options Paper - Final-61.pdf:3: guidelines which recommend seven to fifteen stations for dredges between 100,000 m³ and

MLA_2020_00506-MLV2 Options Paper - Final-61.pdf:9:5.2 Material to be Dredged and Disposed of Offshore

MLA_2020_00506-MLV2 Options Paper - Final-61.pdf:9:and within Table 4, will be dredged using a Trailer Suction Hopper Dredger (TSHD), Backhoe Dredger

MLA_2020_00506-MLV2 Options Paper - Final-61.pdf:9:(BHD) or Cutter Suction Dredger (CSD), and disposed of offshore. There is also a requirement for the

MLA_2020_00506-MLV2 Options Paper - Final-61.pdf:9:dredge depth to be increased to 15.9m bCD within the Berth Pocket, to allow for 500mm of dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:1:included activities for the demolition of existing structures, capital dredging of a new turning circle, capital

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:1:dredging of the channel and berthing pocket, and placement of a rock blanket. A previous marine licence

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:1:variation request to amend the dredging methodology, dredge depths, dredge areas and include an

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:1:the MMO in regular meetings, and relates to a proposed increase to the capital dredge and disposal

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:1: The OSPAR line is taken to be the vertical level of Mean High Water Springs (MHWS). The material to be dredged

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:2:Activity 1.1 – Disposal of dredged material from Phase 1

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:2:takes into account the additional volume of material to be dredged for Activity 3.1 and the amended

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:2: Marine sediments to be dredged as part of Phase 1 of the scheme are to be disposed of at the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:2: Tees Bay C disposal site. A maximum amount of 902,000m3 of dredged material is anticipated

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:2: Marine sediments to be dredged as part of Phase 1 of the scheme are to be disposed of at the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:2: Tees Bay C disposal site. A maximum amount of 1,133,000m3 of dredged material is anticipated

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:2: dredge and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:2: dredge and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:2: dredge

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:3: dredge and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:3: dredge and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:3: dredge

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:3:Activity 2.1 – Capital dredging of the Tees Dock turning circle

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:3:An additional 29,000m3 of material is required to be dredged within the Tees Dock turning circle. This

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:3:increased dredge volume takes into account the tolerances associated with Activity 2.1, which were

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:3: Capital dredging of the Tees Dock turning circle is required to deepen it from an existing depth of

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:3: material is proposed to be dredged from the Tees Dock turning circle.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:3: Capital dredging of the Tees Dock turning circle is required to deepen it from an existing depth of

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:3: material is proposed to be dredged from the Tees Dock turning circle.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:3:The breakdown of dredge quantities for each material type will subsequently need to be amended. The

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:3:breakdown of dredge quantities associated with Activity 2.1 specified on the current marine licence are as

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:3:Please amend the breakdown of dredge quantities of each material type associated with Activity 2.1 to

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:4:Activity 3.1 – Capital dredging – channel and berth pocket

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:4:An additional 416,000m3 of clay is required to be dredged within the channel and berth pocket. This

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:4:increased dredge volume takes into account the additional volume of material to be dredged within the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:4:of the material dredged under Activity 3.1 will be disposed of under Activity 1.1.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:4: Capital dredging within parts of the existing navigation channel, and within areas not currently

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:4: subject to maintenance dredging to create a berth pocket. The total dredge volume for marine

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:4: as a separate activity) will be dredged to a maximum amount of 715,000m3. The berth pocket will

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:4: be dredged to 15.6m bCD, whilst all other areas are to be dredged to 11.5m bCD.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:4: Capital dredging within parts of the existing navigation channel, and within areas not currently

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:4: subject to maintenance dredging to create a berth pocket. The total dredge volume for marine

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:4: as a separate activity) will be dredged to a maximum amount of 1,131,000m3. The berth pocket

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:4: will be dredged to 15.9m bCD, whilst all other areas are to be dredged to 11.5m bCD.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:4:The breakdown of dredge quantities for each material type will subsequently need to be amended. The

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:4:breakdown of dredge quantities associated with Activity 3.1 specified on the current marine licence are as

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:4:Please amend the breakdown of dredge quantities of each material type associated with Activity 3.1 to

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:5: Dredging will be undertaken using a combination of cutter suction dredger, Trailing Suction Hopper

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:5: Dredger (TSHD) and a backhoe dredger. Approximately, up to three barges will be required to

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:5: support with the transport of sediment dredged using the backhoe dredger or cutter suction dredger

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:5: Dredging will be undertaken using a combination of cutter suction dredger, Trailing Suction Hopper

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:5: Dredger (TSHD) and a backhoe dredger. Approximately, up to three barges will be required to

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:5: support with the transport of sediment dredged using the backhoe dredger or cutter suction dredger

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:5: The berth pocket will need to dredged to a greater depth initially (15.6m bCD) to allow placement

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1134-L.2021.00333 South Bank Quay Marine Licence Variation Request 2-62.pdf:5: The berth pocket will need to dredged to a greater depth initially (15.9m bCD) to allow placement

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:1: this section”. I cannot currently decide whether the changes to the dredging amounts and

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:1: impacts associated with placement of dredged material at random locations within the disposal

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:2: dredging activities within this section. In my opinion, this is not a suitable assessment of the

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:2: the planned activities (i.e., including riverbed habitat affected by dredging) is not assessed.

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:2: Given that MLV2 is proposing that an additional 445,000m3 of material be dredged (29,000m3

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:2: impacted, nor the dredge volumes permitted at each stage. I ask that the Applicant please

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:2: habitat lost or altered (inclusive of dredging activity and other activities), alongside the total

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:3: associated dredging activity has changed between the original ES and subsequent variations (an

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:3: reassessment or discussion of how the additional dredged material is likely to compare with the

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:3: agree that it remains unclear whether the combined dredge volumes of Phase 1 and Phase 2

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:3: (inclusive of the additional dredge quantities proposed under MLV2) will remain within the

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:3: whether the additional dredge quantities proposed under MLV2 are adequately reflected in this

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:3: modelling which take into account the additional dredge volumes. Please refer to comment 20ii

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:3: Sediment Plume Modelling Technical Note submitted to support Variation 1, the capital dredging

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:3: provided as Appendix D in document 5 in which an overview of the proposed dredging schedule

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:4: material is to be dredged over the nine-week dredging period, however, the dredging schedule

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:4: provided relates to dredging activities permitted under MLV1. To my understanding, as changes

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:4: to the quantity of material to be dredged were not requested under MLV1, the dredging

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:4: schedule provided does not reflect the additional dredge quantities proposed under the current

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:4: variation (MLV2). It remains unclear as to whether a higher intensity dredging schedule will be

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:4: implemented in order for the dredging to be completed within the quoted 9 week timeframe, or

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:4: whether a longer dredging schedule will be required to remove the new total volume of material

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:4: presents a table detailing how they expect to remove the total dredge volume for Phase 1 of the

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:4: the dredging schedule provided, if this is the case.

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:4: with dredging elements (including the Northern Gateway Container Terminal (NGCT), Anglo

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:4: simultaneous capital dredging campaigns by SBQ and the NGCT to remove material from the

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:4: cumulative impacts to fish from simultaneous dredging activity within the Tees estuary as the

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:4: impacts to fish associated with dredging (i.e., removal of material by dredging) are different to

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:4: spatially restrict dredging to one side of the channel at any one time, impose a seasonal

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:4: restriction on dredging activity, and carry out a scheme of monitoring. However, in order to

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:5: works into the context of other activity (particularly dredging activity) within the estuary.

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:5: it is clear that dredging is frequently undertaken within the Tees estuary, whether in direct

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:5: association with any given development or through routine maintenance dredging. In my

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:5: lost /altered by dredging

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:5: Dredging Activity

MLA_2020_00506-MLA_2020_00506_2_Cefas_comments_for_action_RFI_19.pdf:5: dredged from River Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:3:3.6 Capital dredging of marine sediments and excavation of soils / landside materials within

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:3:3.8 Disposal of dredged material 17

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:7:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL 470

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:7:26.2 Modelling the dispersion and deposition of capital dredged material and effect on water

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:8:28.5 Detailed assessment – C2 Capital dredging 522

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:9:In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:9:dredge and disposal activities).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:9: which covers the potential zone of influence of both the dredge and disposal activities.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:10: P roposedDredg

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:13:(90m wide) and the associated dredging requirements. Consultation with PD Ports’ Harbour Master during

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:15:along the river bank at South Bank (including an electrical substation), capital dredging (to deepen the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:15:berth pocket), offshore disposal of dredged sediments and construction and operation of a new quay (to be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:16:would all be removed to avoid issues arising during the subsequent capital dredge. It is proposed that the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:17: BERTH POCKET DREDGING AREA BERTH POCKET DREDGING AREA

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:17: CHANNEL DREDGING AREA CHANNEL DREDGING AREA

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:17: DREDGING AREA

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:3.6 Capital dredging of marine sediments and excavation of soils /

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:Drawing PC1084-RHD-SB-EN-DR-EV-1113 below shows the proposed dredge footprint. For the purposes

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:of this EIA, a dredge envelope has been assessed (Figure 1.1). As shown on the drawing, dredging is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:dredging to create a berth pocket. The Tees Dock turning circle and areas of navigation channel are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:dredged to a depth of 15.6m bCD (maintained at a depth of 13.0m bCD). The berth pocket is proposed to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:be dredged to 15.6m bCD initially in order to allow for the installation of a 2m thick rock blanket (discussed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:area that is currently partly land and estuarine. There would, therefore, be a requirement for dredging of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:berth pocket. The proposed scheme (and consequently the dredging requirements) has been designed to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:A summary of the proposed design levels and dredge volumes for marine sediments is detailed in Section

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:3.6.1 Volume of marine sediments to be dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:The total dredge volume for marine sediments is predicted to be approximately 1,800,000m3. As detailed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:in Table 3.2, the dredge is proposed to be undertaken in two phases to match the anticipated phased

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:construction of the quay however the assessment undertaken within this EIA assumes that the dredging is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:dredged material is anticipated to comprise geological material (i.e. mudstone) (approximately 340,000m3),

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:would be dredged to 11m bCD with the exception of the berth pocket which will be dredged to 15.6m bCD.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: AREA DREDGED

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: DREDGE TO -11.0mCD

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: DREDGE TO -15.6mCD

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: DREDGED TO -11mCD MUDFLATS

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: AREA DREDGED

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: AREA DREDGED

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: DREDGED TO -11mCD

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: PHASE 1 UPSTREAM AREA DREDGED

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: AREA DREDGED

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: DREDGING PLAN

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:Table 3.2 Proposed volumes of marine sediments to be dredged (excluding over-dredge volumes)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24: Material classification Phase 1 dredge volume (m3) Phase 2 dredge volume (m3) Total dredge volume (m3)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:It is anticipated that dredging will be undertaken using a combination of a Trailing Suction Hopper Dredger

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:(TSHD) and a backhoe dredger. It is envisaged that up to three barges will be required to support with the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:transport of sediment dredged using the backhoe dredger to the offshore disposal site. It is assumed that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:a TSHD would be used to dredge soft material and it has been assumed for the purposes of assessment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:It is expected that the backhoe dredger would be used for both the near surface soft material and the hard

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:material (mudstone). For the purposes of the assessment, it has been assumed that the dredge process

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24: • Removal of soft material above -5m bCD using a backhoe dredger (approximately four weeks).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24: • Removal of soft material below -5m bCD using a backhoe dredger and a TSHD (approximately four

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24: • Removal of soft material in the turning circle using a backhoe dredger and a TSHD (approximately

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24: • Removal of hard material using a backhoe dredger (approximately 10 weeks).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:destabilising the quay wall. The implication is that the berth pocket would need to dredged to a greater

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:3.8 Disposal of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:There are two active disposal sites that potentially could accept dredged material from the Tees estuary:

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:capital dredged material but has received quantities of maintenance material in some years. Tees Bay A

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:For the purposes of assessment and the marine licence application, it has been assumed that all dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:The Phase 1 quay wall would extend 90m either side of the berth pocket to retain the dredged slopes back

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:assessed the worst-case scenario of building the quay and dredging the channel in one phase. However,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:and capital dredging (see Drawing PC1084-RHD-SB-DN-DR-C-1388). The rock blanket would be installed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:following completion of the dredge.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:26: DREDGE TO Newcastle upon Tyne, NE1 4EE

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:26: DREDGE LEVEL.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:26: CLAY DREDGE LEVEL CLAY

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:27: This assumes all dredging plant

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:27: Capital dredging 2 months 3 months 5 months are working at full capacity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:27:Whilst capital dredging is taking place, there is potential for PDT to be undertaking maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:27: • Dredging plant

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:27: o Backhoe dredger

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:27: o Barges to transport material from the backhoe dredger to the offshore disposal site.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:28:result of capital and maintenance dredging, as well as INNS being introduced or spread from ship ballast

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:30:known to cross underneath the Tees estuary. As dredging is not proposed to be undertaken above the pipe

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:32:Alternative dredging plant

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:32:There is likely to be a requirement to utilise a number of different types of dredger depending on the nature

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:32:of the material being dredged. Therefore, for different parts of the dredging it will be necessary to use a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:32:TSHD or backhoe. The environmental implications of using these dredgers have been assessed and no

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:Approach channel and berthing pocket dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:The proposed dredged depth in the navigation channel has been chosen to maximise the tidal window to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:3.15.3 Alternative uses of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:uses for the dredged arisings, with disposal at sea being the least preferred option (in accordance with the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:reclamation projects. The alternative options that have been considered for the disposal of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:The proposed dredge is predicted to give rise to boulder clay, sand and silts. Sand and boulder clay could

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:STDC is not aware of any construction projects within the local area that require the use of dredged material,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:continue to remain open to the re-use of dredged material within construction projects.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:(possibly doubling as little tern nesting islands) could be created using the dredged material from Hartlepool

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:suitable locations for the re-use of dredged sediment; three were located adjacent to the South Gare

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:34:scheme by beneficially re-using dredged material would be welcomed. It is considered that such beneficial

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:34:re-use of dredged material could also represent a possible option for the South Bank scheme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:34:STDC will continue to investigate the option of creating bird islands using dredged material, possibly linking

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:34:Tees (or any beneficial use of dredged material in the marine environment) would require a separate marine

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:34:licence application to deposit dredged material, or potentially a variation to the marine licence for the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:35: • Dredging;

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:35: • Capital dredging (removal activity).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:35: • Offshore disposal of dredged material (deposit activity).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:35:The proposed dredge footprint is located predominantly within an area subject to maintenance dredging by

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:35:of the existing maintenance dredge footprint, and therefore a variation to the licence held by PDT is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:35:envisaged to increase the source area of maintenance dredged material following construction of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:38:Options for the disposal of waste (i.e. the material to be dredged from the approach channel, turning circle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:38:investigated in accordance with the waste hierarchy. Possible alternative options for dredged material have

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:39: • Policy NE-DD-3 – proposals for the disposal of dredged material must demonstrate that they have

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:52: Proposals for the disposal of dredged material must demonstrate that they have been

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:52: assessed against the waste hierarchy. Where there is the need to identify new dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53: The Environment Agency’s response to RCBC during scoping consultation listed three Impacts of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53: • Impacts of dredging on the tidal prism of the estuary, and therefore the extent addressed in Section

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53:Agency (letter • In addition to the initial capital dredge, consideration of the impacts associated impacts associated

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53:dated 14th August with the continued maintenance of the dredged area in future years should be with maintenance

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53:2020) assessed too, in terms of the continued impact to fish, as well as water quality. dredging is made in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53: • it is likely that dredging activity will need to take into account the protection of Section 6.6.4.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53: during critical migration periods. This would entail limiting dredging activity to water quality are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53:dredging and offshore disposal activities. For this reason, the study area shown in Figure 6.1 has been

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:54:2005 Maintenance dredging baseline document. ABPmer, 2005

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:54: Tees maintenance dredging baseline Royal Haskoning, 2007b Documents the maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:55: 2019a and 2020a) maintenance dredging and disposal for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:55: QEII Berth Development – Environmental information about maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:55: dredging operations required for this

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:57: Maintenance dredging baseline

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:57: Documents the maintenance dredging material regularly

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:57: Tees maintenance dredging baseline removed from the Tees estuary, and the potential

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:57: document. implications of maintenance dredging and disposal for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:57:2009 Royal Haskoning, 2009 dredging regimes and materials arising from above and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:57: possible effects from the proposed dredging operations

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:58:In addition, an analysis of historical data, including dredge and disposal volumes and land reclamation from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:60: predict movement of suspended sediment from the proposed dredging and disposal activities by

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:60: was run for the entire dredging and disposal period under astronomic tidal and daily mean fluvial

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:60:the harbour and marina berths. All of these locations require dredging to maintain a safe navigable depth

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:62:of reaches require maintenance dredging to remove both sands and silts. The volume of sediments dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:62:dredged from the river mouth and navigation approach channels within Tees Bay, with river silts mainly

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:62:dredged from within the berths and river channel further upstream in the Tees estuary.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:62:to allow bypassing of sediment, but observed accumulations upstream, and a 24% reduction in the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:(Newlyn) (7.15m below CD). As a result of training works and deepening by dredging, the current depth at

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:the mouth is about double this natural level. Dredging and training works have occurred since the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:establishment of the first dredged channel of 4.3m from Middlesbrough Docks to the sea after 1853.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:only notable project undertaken since that time has been the dredging and re-strengthening of No.1 Quay

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:sediments) which is offset by maintenance dredging and disposal at offshore licenced disposal site Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:PDT is required by the Tees and Hartlepool Port Authority Act 1966 to publish dredge depths; the published

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:Admiralty Charts show the maximum licensed depths for the channel and berths. A summary of the dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:14.1m below CD were originally dredged to a deeper depth.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:access. The berth pocket within Tees Dock has been dredged to a depth of 14.5m below CD, with the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:general dock area dredged to 10.9m below CD.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:84:induced currents, vessel induced forces and re-suspension by dredging operations. These last two were

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:85: • Marine input: Comparison of the above figures with the present knowledge of the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:85:Dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:85:As part of this responsibility, PDT must maintain the advertised dredge depths within the defined areas

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:85:dredging in the thirteen reaches of the river shown in Figure 6.29 (as well as in berths within the Tees and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:85:within Tees Bay). Maintenance dredging practices have remained unchanged since 2005.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:85: Figure 6.29 Maintenance dredging reaches within the River Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:Most dredging within the Tees occurs in the approach channel and low-middle estuary in order to maintain

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:access to berth pockets and impounded docks. TSHDs are currently used for the majority of the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:dredgers have active bottom door offloading systems.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:PDT also operates its own 11m plough to supplement ongoing suction dredging operations through the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:removal of isolated high spots on the riverbed, primarily in frontages or confined areas. Plough dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:dredgings requiring disposal to sea.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:A summary of the maintenance dredged volumes (m³) by each reach from 2001 to 2019 is provided in Table

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:6.15 and shown in Figure 6.30. Data on dredging was obtained from PDT and extends the time series

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:originally presented in Royal Haskoning (2008) from 2001 to 2019. No dredging has been required within

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:Reach 0 during the reporting period. Note that these data also include maintenance dredging volumes from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86: Volume of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:Figure 6.30 Summary of volumes (m3) dredged and deposited offshore during the period 2001 to 2019

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:The total volume of maintenance dredged material has decreased below the average annual volume for the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:Over the 19-year period, the average volume maintenance dredged from the Tees reaches is 740,266m3,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:87:Table 6.15 Summary of the total volumes of dredged material disposal (m3) from 2001 to 2019

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:89:Maintenance dredge material (between 2001 and 2018) comprised around 180,000m3 of mud, mostly found

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:89:A review of the dredged sediment quality data is presented in Section 7.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:89:general, Tees Bay A (TY160) is used for the disposal of maintenance dredge arisings while Tees Bay C

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:89:(TY150) is used for capital dredge arisings. Tees Bay B (TY110) and Tees Bay Foreshore (TY170) are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:89: dredged material. Some 1999, associated with the construction of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:89: 54 42.600N 00 58.600W maintenance dredging has been downstream Ro-Ro berths. Typical annual

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:90:Figure 6.31 Location of offshore maintenance and capital dredge disposal sites

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:90:6.5.2 Capital dredging and offshore disposal of dredged sediments

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:90:Capital dredging is required to: (i) create a berth pocket adjacent to the new quay; (ii) deepen the river

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:pocket, creating a finished depth of 13.6m below CD. Dredging of the channel and berthing pocket will yield

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:In total, approximately 1,800,000m3 of material will be dredged from the areas described over an

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:as ‘soft’ material) and Mercia Mudstone (classed as ‘hard’ material). Dredging will be undertaken using a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:Each year, between 25 – 30 million tonnes (wet weight) of dredged marine sediments from ports, harbours

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:dredged from the proposed scheme will be taken to the Tees Bay C licensed offshore disposal site, some

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:The capital dredging within the river, using TSHD and BHD, and the disposal activities at the licensed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:modelling of the sediment dispersion associated with the dredging and disposal activities, as well as the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:and run for the entire four month duration covering all proposed dredging and disposal activities. Wave

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:disturbance effects have been included. The dredging methods, schedule and sediment release settings

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:movement of dredgers and transport barges (including dredging, sailing, disposal and downtime) such that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:sediment releases have been made near continuously throughout the dredging operations (except for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:allowed periods of downtime) from along the centre line of the dredged areas, running along the axis of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:The overall dredging and disposal operations may be considered as four stages in the following sequence:

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91: • Stage 1: BHD working to dredge the upper soft material (above -5m CD) in the berthing pocket and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91: • Stage 2: BHD and TSHD working in parallel to dredge the middle soft material (below -5m CD) in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91: • Stage 3: BHD working to dredge the bottom hard material in the berthing pocket and river channel

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91: • Stage 4: BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:Results from the sediment dispersion modelling are discussed in turn for the dredging and disposal activities.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92: throughout the entire four-month period covered by the dredging and disposal simulations, but only

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92: extents of enhancement in SSC from any stage of the dredging or disposal operations during the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92: relevant stage of the dredging programme. It is important to note that this type of figure does not

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92: become affected by a plume at some point during the dredging or disposal activities (in some areas

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:Dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:end of the dredging transect to the north-eastern end.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:Peak concentrations from dredging are always local to the point of disturbance from dredging at the riverbed,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:on timing of release with respect to the phase of the tide and location of dredging within the berthing pocket

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:release from the south-western corner of the dredging transect during the ebb phase (Plot A) and flood

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:phase (Plot D) of the tide when the release is towards the north-eastern end of the dredging transect.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:When the dredger is at the south-western end of the transect, the maximum spatial extent of the plume on

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:Middlesbrough Dock. When the dredger is at the north-eastern end of the transect, the extent of the plume

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:93:Figure 6.32 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:93:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:94:Figure 6.33 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:94:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:95:Figure 6.34 (Plot C) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:95:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:96:Figure 6.35 (Plot D) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:96:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:96:In order to determine a maximum ‘zone of influence’ from Stage 1 of the dredging activities, the maximum

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:96:values of enhancement in SSC from any phase of the dredging operations during Stage 1 have been plotted

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:96:release points along the dredging transect at the proposed scheme site. Further upstream and downstream

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:96:of the areas directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a short distance

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:96:from the point of dredging, and at the peripheries below 20mg/l) before merging with low background

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:97:Figure 6.36 Maximum enhanced SSCs arising from dredging activities during Stage 1 of the capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:97:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:97:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:97:time, moving from the south-western end of each of two parallel dredging transects to the north-eastern

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:97:from the two dredger types, as show in Figures 6.37 and 6.38 (Plot A and Plot B show releases from the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:97:south-western and north-eastern ends of the two parallel dredging transects respectively). However, the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:98:Figure 6.37 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 2 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:98:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:Figure 6.38 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 2 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:The maximum ‘zone of influence’ from Stage 2 of the dredging activities is shown in Figure 6.39 (please

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:note the earlier caution in interpreting this type of figure). This shows that during Stage 2 of the dredging,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:becomes wider; and (iii) at times two plumes are created by the in-parallel dredging activities. Despite these

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:release points along the dredging transects at the proposed scheme site. Further upstream and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:downstream of the areas directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:short distance from the point of dredging, and at the peripheries below 20mg/l) before merging with low

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:Figure 6.2 Maximum enhanced SSCs arising from dredging activities during Stage 2 of the capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:end of the dredging transect to the north-eastern end.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:of the dredging transect during the ebb phase (Plot A) and flood phase (Plot B) of the tide. Similar results

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:is towards the north-eastern end of the dredging transect. It can be seen that the maximum SSC values

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:and the spatial extents of the plume arising from Stage 3 of the dredging are much lower than those

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:of dredging is notably lower.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:101:Figure 6.40 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:101:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:102:Figure 6.41 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:102:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:103:Figure 6.42 (Plot C) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:103:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:104:Figure 6.43 (Plot D) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:104:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:104:The maximum ‘zone of influence’ from Stage 3 of the dredging activities is shown in Figure 6.44 (please

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:104:note the earlier caution in interpreting this type of figure). This shows that during Stage 3 of the dredging,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:104:during both Stages 1 and 2 of the dredging (note the slight plume shown in the mid channel is a remnant of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:104:the Stage 2 dredging, which has not fully dissipated before Stage 3 commences). During Stage 3, the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:105:Figure 6.44 Maximum enhanced SSCs arising from dredging activities during Stage 3 of the capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:105:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:105:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:105:end of each of two parallel dredging transects to the north-eastern end.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:105:Peak concentrations from dredging are always local to the point of disturbance from dredging at the riverbed,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:105:times in the dredging cycle, SSC values can become enhanced by typically 10 to 20mg/l between the point

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:106:Figure 6.45 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 4 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:106:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:107:Figure 6.46 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 4 of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:107:capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:107:The maximum ‘zone of influence’ from Stage 4 of the dredging activities is shown in Figure 6.47 (please

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:107:note the earlier caution in interpreting this type of figure). This shows that during Stage 4 of the dredging,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:107:stages, the maximum SSC concentrations remain local to the point of dredging within the turning circle (up

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:107:to a few hundred mg/l). Further upstream and downstream of the areas directly dredged, the SSC

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:107:enhancement drops markedly (typically below 50mg/l a short distance from the point of dredging, and at the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:108:Figure 6.47 Maximum enhanced SSCs arising from dredging activities during Stage 4 of the capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:108:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:108:The sediment plumes that arise from the four stages of the dredging could potentially affect areas of riverbed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:108:of influence’ from Stages 1 - 4 inclusive of the dredging activities has been plotted in Figure 6.48 for the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:108:that during the predicted four months of dredging, all individual or coalesced plume effects are confined to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:108:Furthermore, all plumes associated with dredging of the berthing pocket and river channel in the vicinity of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:108:whilst all plumes associated with dredging of the turning circle are confined to the left bank (north of centre

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:109:Figure 6.3 Maximum enhanced SSCs (near-bed layer) arising from dredging activities during Stages 1 -

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:109:4 inclusive of the capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:110:Figure 6.49 Maximum enhanced SSCs (near-surface layer) arising from dredging activities during Stages

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:110:1 - 4 inclusive of the capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:110:Sediment suspended within the dredging plumes will fall to the riverbed, either soon after disturbance or

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:110:spillage occurring during the dredging operation (for coarser-grained sediment fractions), or at a point in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:110:by this deposition. It can be seen that much of the sediment falls to the bed within the dredged areas (from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:110:where it will be re-dredged to achieve the necessary bed depths), whilst the deposition that occurs in other

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:111:Figure 6.50 Maximum riverbed thickness change due to sediment deposition arising from dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:111:activities during Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:111: would be affected by the zone of influence of the dredging operations].

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:appreciable extent, with peak enhancements of between 15 and 85 mg/l during Stage 2 of the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:programme (Figure 6.52). Whilst Stage 1 of the dredging also causes some enhancement in SSC at point

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:elevations in SSC drop rapidly after each dredging plume has dispersed, and return to baseline levels at

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:points of downtime or between successive dredging stages. There are no significant effects noted at the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:water quality sampling points during Stage 3 of the dredging and only negligible effects for a short duration

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:a very low value (6mm) throughout the entire dredging programme (Figure 6.53) and in reality some of this

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:material will become re-suspended by tidal currents or dredged during maintenance campaigns of the river

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:At the mudflat monitoring points, it is only during Stage 4 of the dredging that any discernible effects are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:At the navigation monitoring points on the north bank, it is only during Stage 4 of the dredging that any

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:At the navigation monitoring points on the south bank, it is throughout Stages 1 and 2 of the dredging that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:Stages 3 and 4 of the dredging, only negligible effects are noted, equivalent to variations within the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:113:re-suspended by tidal currents or will be removed during maintenance dredging campaigns of the river

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:118:is licensed for the disposal of dredged sediment and is routinely monitored as part of a national programme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:118:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:118:The above cycle is repeated throughout all disposal events associated with Stage 1 of the dredging,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:119:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:120:dredging, the following descriptions focus on where particular aspects of subsequent stages differ from the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:120:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:120:TSHD. The pattern of dispersion following discharge of the BHD-dredged material is as described for Stage

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:120:cessation of TSHD discharge) the subsequent BHD-dredged material disposal is commenced at a common

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:121:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:122:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:123:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:124:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:125:dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:126:dredging programme has been plotted in Figure 6.64 for the near-bed layer of the water column (please

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:127:inclusive of the capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:128:event during Stage 1 of the capital dredging programme – local scale

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:129:event during Stage 1 of the capital dredging programme – wider scale

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:The river dredging and offshore disposal activities will both cause plumes of sediment to form close to the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:During dredging, there will be a release of sediment particles from the deliberate physical disturbance to the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:riverbed and, more significantly, from overflow when dredged material is loaded into the dredger’s hopper

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:(for TSHD) or the transport barge (for BHD). Such releases will be ongoing through each dredging cycle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:until the dredging activity ceases due to downtime (e.g. adverse weather, vessel maintenance) or at

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:scheduled breaks between stages of dredging activity. During offshore disposal, a single hopper load will

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:Once a plume is generated, the highest SSC values will be recorded at the point of river dredging or offshore

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:During some stages of the dredging and disposal activities, most notably when both TSHD and BHD are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:The plume effects arising from the river dredging are characterised by a short-lived localised increase in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:SSC by a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial extent

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:and reduction in concentration over following hours. Since the dredging is a near-continuous operation, the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:extents during the four different stages. During Stages 1-3 the dredging-related plume effects will be largely

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:Dock and Tees Dock. During Stage 4 the dredging-related plume effects will be largely confined to the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:and the Oil Terminal. Other than within the dredged areas, sediment deposition on the riverbed will be of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:occurs in the river channel or at jetties, it will subsequently be dredged as part of ongoing maintenance

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:dredging regimes, whilst material deposited back into the newly dredged areas will be re-dredged during

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:Overall, the changes in SSC and sediment deposition arising from the river dredging and offshore disposal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:133:dredging to the Tees Dock turning circle and approach channel and to create a berth pocket.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:140: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:140: dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:140: deposition will require periodic dredging to maintain the design depths.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:that the increase in mean tidal prism as a result of the new quay’s set-back alignment and dredging of part

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:6.6.4 Maintenance dredging and offshore disposal of dredged sediments

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:In order to provide an estimate of the present annual average maintenance dredging undertaken in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:the proposed new quay), it can be assumed that the affected area covers approximately half of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:reach 6 and approximately one-third of dredging reach 5 (these ‘dredging reaches’ are shown in the earlier

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:Between 2001 and 2019 inclusive, the average annual maintenance dredging in reach 5 was 3,585m3 and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:maintenance dredging is evenly located through each dredging reach so that the spatial scaling described

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:maintenance dredging is likely to be due to the low levels of suspended sediment measured in this reach of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:the river. By far the greatest contributions to the overall annual maintenance dredging total come from close

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:to the barrage in dredging reaches 1-3 inclusive or towards the estuary mouth in dredging reaches 8-11

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:inclusive. All non-contaminated material from maintenance dredging is usually taken to the Tees Bay A

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:a requirement for more material to become from this local reach dredged annually. Recognising this, a 10%

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:increase in annual maintenance dredging requirement may be a reasonable assumption recogising the low

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:baseline SSCs in this reach. Even under this scenario, the maintenance dredging from this reach local to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:the new quay will still yield a very low overall contribution to the net annual maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:requirements from the estuary as a whole. Therefore the potential increase in maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:dredging and offshore disposal regimes.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: Mitigation measures with regard to dredging may be required to manage

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: reductions. Such measures would entail limiting dredging to certain

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: proposed dredge on water and sediment quality are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: Dredging has the potential to cause negative impacts on the water

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: with the proposed dredge are detailed in Section 9

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: The proposed dredging plant has been selected

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: encountered during the dredge, as well as the plant

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: The applicant should consider the (dredging) methodology to be used,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: which has been used for previous capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: the disposal of dredged material and the timing of works.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: to be used, disposal of dredged material and timing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144: As detailed in Section 3, the dredged material is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144: dredged material previously and it can accept the total proposed amount

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144: dispose of capital dredged sediment. Impacts

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144: of dredged material.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144: Due to the quantity of material proposed to be dredged, it is advised that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144: of dredged material are presented.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144:are predicted to occur (e.g. sediment plumes generated during capital dredging and effects on tidal currents

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144: • Cefas Guideline Action Levels for the disposal of dredged material (Cefas, 2000); and,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144:The Action Levels are used as part of a ‘weight of evidence’ approach to assessing the suitability of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:146:losses from dredging equipment and concentrations of contaminants within the sediments to be dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:147:impacts associated with the proposed offshore disposal of dredged material are considered in Section 26,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:147:proposed new quay at South Bank. There is however a degree of overlap between the dredge footprint for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:148: D2 Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:152:that found in 2006. The MMO has recently confirmed that the sediment to be dredged from the NGCT

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:153:13 surface samples from within and adjacent to the proposed dredge footprint for the NGCT scheme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:154: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:156:across the proposed dredge footprint. Samples will be recovered at the surface and at 1m intervals at each

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:156:of the 25 positions to the proposed dredge depth, or until geological mudstone is encountered beforehand

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:156:undertake maintenance dredging of the river to maintain the advertised dredge depths, with mid-licence

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:156:dredge disposal licence (to ensure that the maintenance dredged material remains suitable for offshore

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:7.5.1 Dispersion and redistribution of sediment during capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:Capital dredging would result in the creation of sediment plumes. To consider the potential extent and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:model MIKE3-HD and run for the four-month period over which dredging is likely to occur. The simulations

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:also accounted for the movement of dredgers and transport barges (including dredging, sailing, disposal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:and downtime) and four ‘stages’ of dredging (which would occur in sequence) were modelled to allow for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157: • Stage 1: BHD working to dredge the upper soft material in the berthing pocket and river channel.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157: • Stage 2: BHD and TSHD working in parallel to dredge the middle soft material in the berthing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157: • Stage 3: BHD working to dredge the bottom hard material in the berthing pocket and river

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157: • Stage 4: BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:the figure that the largest concentrations are local to the dredger and typically reach around 100 to 200mg/l.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:dredgers. At some points in the cycle, areas of these initially separate plumes combine as they move

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:The maximum concentrations and the spatial extents of the plume arising from Stage 3 of the dredging are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:and the production rate of dredging is notably lower. Figure 7.5 shows an example plume during Stage 3

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:dredging. Plots for the different tidal conditions are presented in Section 6.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:Again, peak concentrations close to the dredger are shown in the plume modelling output. On the ebb

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:158:Figure 7. 3 Plume of suspended sediment concentrations arising from dredging activities during Stage 2

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:158:(release from south-western ends of the two parallel dredging transects)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:159:Figure 7. 4 Plume arising from dredging activities during Stage 1 of the capital dredge (release from the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:159:south-western corner of the dredging transect during the ebb phase)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:160:Figure 7. 5 Plume of suspended sediment concentrations arising from dredging activities during Stage

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:160:3 (release from the south-western corner of the dredging transect during the ebb phase)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:161:Figure 7.6 Plume of enhanced suspended sediment concentrations arising from dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:Stage 2 of the proposed dredging schedule (when the BHD and TSHD would be working in parallel to dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:the proposed capital dredging works either do not cause elevations at the water quality monitoring points or

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:will be exceedances over baseline conditions throughout Stage 2 of the dredging schedule (as noted above,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:a period of approximately four weeks within the approximately four month dredging programme). The effect

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:7.5.2 Effects on water quality physical parameters during capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:The relatively limited nature of the plume extents predicted for the proposed capital dredging indicates that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:Additionally, a significant component of the dredged material is likely to be geological sediment, which is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:only for the duration of the dredge (approximately four months) and reversible. As a result, the magnitude

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:163:7.5.3 Remobilisation of contamination during capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:163:undertaken to inform whether maintenance dredging within a dock in Dover Harbour could give rise to EQS

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:163:estimates of sediment losses from dredging equipment and concentrations of contaminants within the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:163:sediments to be dredged to provide an indication of the amount of contamination that could be released into

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:164:Table 7.9 Summary of calculations undertaken for potential water column effects within the Tees estuary at low water (based on removal of 15,000m3 of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:164: Calculated loss of sediment derived using indicative values for the mass of sediment resuspended per m 3 of dredged material in CIRIA guidance (John et al., 1999) in kg/m3. Worst case S-Factor for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:164: MAC EQS Maximum Allowable Concentration. Used given the fact that dredging is not continuous as opposed to annual average EQS which averages samples collected over a year.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:166: • A relatively large proportion of the total volume of dredged material is anticipated to comprise

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:166: the dredge area.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:166: • The daily dredge volume is likely to be less than that accounted for due to stoppages associated

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:166: • The calculation is based on loss from a TSHD whereas a considerable component of the dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:166: will be undertaken with a backhoe dredger which has a lower production rate and therefore

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:166:weeks during Stage 2 of the proposed dredging programme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:7.6.1 Dispersion and redistribution of sediment during maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:increase in deposition rates and hence a requirement for more material to be dredged from this local reach

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:annually (see Section 6 for more information). A 10% increase in annual maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:However, the majority of material removed during the weekly maintenance dredging campaigns undertaken

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:net annual maintenance dredging requirement from the estuary as a whole. Therefore the potential increase

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:in maintenance dredging requirement is not expected to be significant and would be managed within existing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:maintenance dredging and offshore disposal regimes.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:dredging operations is predicted to be very low. Given the sensitivity of the Tees estuary is considered to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:191: dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:191: • Impacts on marine ecology from increased suspended sediment during capital dredging and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:191: smothering as a result of dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:191: • Impacts on marine communities due to changes in the maintenance dredge regime.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:191:from invasive species, through activities such as maintenance dredging, shipping ballast water exchange,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:194: dredging, can have a large effect upon habitats such as intertidal muds

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:195:The majority of the proposed dredge footprint is located within the subtidal zone. However, given the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:195:proposals to locate the quay in the riverbank (i.e. on existing land), dredging and excavation in front of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:199: would be indirectly affected (e.g. through sediment deposition during capital dredging).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:199: a 5mm cod end, with the trawls evenly distributed across the dredge area. Fish, shrimp and other

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:199:between the dredge footprint for the two schemes, specifically at Tees Dock turning circle. Results from the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:200: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:206:PDT would continue to undertake maintenance dredging of the river to maintain the advertised dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:9.5.1 Direct loss of habitat due to demolition of existing structures and dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:9.5.1.2 Capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:The proposed capital dredging would result in direct impacts to existing areas of intertidal and subtidal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:habitat that lie within the proposed dredge footprint, which are certain to occur.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:It is recognised that the proposed dredge footprint is within close proximity to the North Tees mudflat, which

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:the assumed side slopes to be created as part of the proposed dredge, no direct or indirect impact to this

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:The impact on the subtidal from the proposed dredging activities within the existing channel and part of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:is expected to recover following the dredging activities being carried out. However, in the short term, the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:benthic community would be removed from areas where dredging will be carried out.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:208:However, the capital dredging that will take place to create the berth pocket, and the rock blanket that will

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:208:wall during operation is estimated to be 5ha. The area of subtidal to be disturbed by the dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:208:dredging. As mentioned in Section 9.4.4, as there was no clear dominance of a single species, information

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:208:dredging, recruiting from the surrounding population within the year (Diaz-Castaneda et al., 1989), although

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:208:disturbance/substratum loss (i.e. from maintenance dredging). Based on these, MarLIN reports a medium

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:208:The benthic community is expected to be somewhat sensitive to physical habitat loss from the dredging of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:209:overall sensitivity of high has been assigned on a conservative basis. The dredging activities will result in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:209:dredging activities, the magnitude of this impact on the benthic community and habitat is considered to be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:209:as a result of habitat loss caused by dredging would be of moderate adverse significance.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:209:the Tees estuary which could be directly impacted by the proposed dredging activity (MarLIN, 2020).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:209:Some of the mudflat that will be lost as a result of the proposed dredge / excavation is classified as Priority

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:209:nature of the habitats within the Tees. Although the loss of the intertidal due to the dredge / excavation

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:It is recognised that the proposed dredge is a key component of the proposed scheme, and as such the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:dredging has been minimised as far as possible, within the constraint of delivering a development that meets

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:9.5.2 Effects of increased suspended sediment concentrations during dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:Dredging of approximately 1,800,000m3 of material will be required for the proposed scheme, over half of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:which will be for the creation of the berth pocket. Approximately 155,000m3 of this will be dredging of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:intertidal (defined as between Mean Low Water and Mean High Water). The proposed dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:as a result of dredging (at a level exceeding the respective EQSs of relevant contaminants) (Section 7.5.3).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:resuspended sediment which does not contain elevations beyond Action Level 2). The dredged sediment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:In general, sediment plumes induced by dredging are considered to pose only a limited risk to water quality

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:accommodate an increased oxygen demand, particularly where dredging takes place in open sea or

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:dredging periods. The sediment plume generated by dredging would likely be dispersed by tidal currents

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:away from the dredging location. The dispersion would either be upstream on the flood tide or downstream

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:For both types of dredger (backhoe and TSHD), peak suspended solids concentrations are predicted in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:immediate vicinity of the dredger. Sediment plume modelling predicts different plume extents and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:suspended sediment concentrations depending on the stage of dredging (as described in Section 6). In all

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:cases, the sediment plume is predicted to be very narrow within the river, with the phase of dredging with

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:the highest concentrations predicted to be 100-200 mg/L within the vicinity of the dredger, reducing to 10-

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:All plumes associated with different stages of dredging in the vicinity of the proposed new quay are confined

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:to the southern bank of the river, whilst all plumes associated with dredging of the turning circle are confined

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:(Figure 6.51), it was only during Stage 4 of the dredging (related to dredging of the turning circle) that any

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:the proposed dredge is considered to be of low sensitivity to increases in suspended sediment.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:The dominant sediment biotope present within the dredge footprint is EUNIS biotope A5.323, Nephtys

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:9.5.3 Effects of smothering following dredging on marine species and habitats

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:During the capital dredging a proportion of the material that is dredged would be disturbed and re-suspended

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:material during dredging is described in Sections 6 and 7.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:The proposed dredging footprint of the scheme is considered to be relatively limited; restricted to the direct

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:mentioned in Section 9.5.1.2, the estimated area to be disturbed directly as a result of the dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:Some of the sediment that is suspended as a result of the dredging activities will be deposited to the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:riverbed, either soon after disturbance occurring during the dredging operation (for coarser-grained

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:on the riverbed within the dredging footprint, whilst the deposition that occurs in other parts of the river is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:213:Any smothering caused by the proposed dredging activities is not predicted to result in the deposition of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:213:sediments at Seal Sands, Bran Sands or North Gare Sands, due to the limited footprint of dredging activities,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:213:potentially be affected. It is predicted that the proposed dredging would not give rise to the loss of a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:214:of ship wash and maintenance dredging where required) due to the shipping activities during operation and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:level rise. In the main channel the deposition will require periodic dredging to maintain the design depths.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:Changes to the cross-sectional area of an estuary due to capital dredging creation of a new subtidal area

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:9.6.3 Change in maintenance dredging regime affecting marine communities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:dredging will not change. The areas that are being proposed to be maintenance dredged for the scheme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:are all areas that are currently already being dredged regularly; there will be no change in the extent of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:seabed affected by maintenance dredging, with the exception of the newly created berthing pocket.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:continuously be disturbed by shipping activity and maintenance dredging and, therefore, this will prevent

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:communities as a result of the maintenance dredging requirement arising from the proposed scheme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:217:maintenance dredging, movement of vessels (including vessels associated with the demolition of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:217:mammals from the offshore disposal of dredged sediments are assessed in Section 26.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:220:estimate the noise levels likely to arise during the dredging works at the proposed scheme. More information

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:220:on the methodology used in the underwater noise modelling for the dredging works in Section 10.5.1.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:225:point of the proposed dredge footprint. The 2019 surveys occurred for a period of 47 days throughout the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:225:usage is relatively low in and around the proposed dredge footprint plus 1km buffer, with a grey seal density

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:225:dredging (Section 10.5 and 10.6). The density estimate of 0.014/km2 has been used to determine the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:227:at the Farne Islands (117km from proposed dredge area), Donna Nook in the Humber Estuary (173km from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:227:proposed dredge area), the Wash (233km from proposed dredge area) and at Blakeney Point (244km from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:227:proposed dredge area). With smaller haul-out sites located at Ravenscar (57km from proposed dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:227:area), Filey Brigg (81km from proposed dredge area) and at Seal Sands (3km from the proposed dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:228:Seals Sands is located approximately 3km from the proposed dredge footprint at its closest point. The Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:228:usage is relatively low in and around the proposed dredge footprint plus a 1km buffer, with a harbour seal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:230: 0.00008/km2 for dredge footprint plus 1km

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:230: 0.0003/km2 for dredge footprint plus 1km

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:230:disposal site. The winter area of the Southern North Sea SAC is located 127km from the proposed dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:230:The proposed dredge area is located within the Teesmouth and Cleveland Coast SSSI. Breeding harbour

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:230:Pupping tends to occur in June and July on the intertidal mud of Seal Sands (3km from the proposed dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:232:through the noise exposure event (dredging activity). This is a highly conservative approach, and likely has

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:232:the modelled noise levels for dredging works fell below 130 dB re 1µPa, they were of the order of ambient

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233:publicly available (Subacoustech, 2018) has been used to assess the impact ranges of dredging works

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233: • Backhoe dredger with an estimated sound source of 165.0 dB re 1 µPa SPLRMS @ 1m.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233:proposed dredging in the Tees Dock turning circle to the coast).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233:source levels predicted for the dredging activities, any marine mammal would have to remain in close

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233:a result of underwater noise during dredging activities (Table 10.9) has been assessed based on the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233:maximum number of animals that could be present in the maximum impact areas for dredging (Table 10.8).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233:berth pocket, would be the same or less than those modelled for dredging activities.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233:dredging activities based on Hartlepool approach channel underwater noise modelling (Subacoustech, 2018)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233: et al., 2019) dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233: SEL during dredging 0.003km2

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:234:PTS as a result of underwater noise associated with dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:234: dredging 0.00000024 grey seal Negligible / very low magnitude

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:234:The magnitude of the potential impact of PTS as a result of dredging noise is negligible / very low for harbour

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:234:The potential risk of any PTS that could result from underwater noise during the dredging works or other

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:234:activities would be limited to the immediate vicinity of the dredging works while they are taking place only.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:234:dredging works.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:234: dredging very low

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:The dredging process emits continuous, broadband sound into the marine environment. SPLs can vary

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:widely, dependent on the dredger type, operational stage, or environmental conditions (e.g. sediment type,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:factors will also affect the propagation of sound from dredging activities and along with ambient sound

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:Based on reviews of published sources of underwater noise during dredging activities (e.g. Thomsen et al.,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:mammals may be exposed to during dredging activities are usually below auditory injury thresholds or PTS

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:in marine mammals as a result of dredging activity is highly unlikely.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:area during dredging activities. Marine mammals may exhibit varying behavioural reactions intensities as a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:in the berth pocket, would be the same or less than those modelled for dredging activities.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:case location (closest point of the proposed dredging in the Tees Dock turning circle to the coast).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:display a fleeing response, as a result of underwater noise during dredging activities (Table 10.12) has been

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:(Table 10.11) for proposed dredging activities.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:dredging activities based on Hartlepool approach channel underwater noise modelling (Subacoustech, 2018)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236: et al., 2019) dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236: dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:result of underwater noise associated with proposed dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236: during dredging (0.000000004% of the NE England MU) (temporary effect with less than 1% of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:The magnitude of the potential impact of TTS and fleeing response as a result of dredging noise, is negligible

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:The potential risk of any TTS or fleeing response that could result from underwater noise during the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:works would be limited to the immediate vicinity of the dredging works while they are taking place only. The

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:237:dredging works.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:237: dredging very low

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:238:vessels during the proposed dredging has been assessed based on a very precautionary worst-case of up

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:238:risk (Table 10.14). The proposed dredge footprint is approximately 0.38km2 in size (based on the dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:238:be present in the dredge footprint that could be at potential increased vessel collision risk

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:238: dredging (5% of Negligible / very low magnitude

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:238: animals in dredge 0.000002 grey seal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:238:potential increase in collision risk with vessels during dredging has been assessed as negligible (not

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:239:Table 10.15 Assessment of impact significance for increased collision risk from vessels during dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:239: dredging very low

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:240:the proposed dredge footprint. Due to the distance of the haul-out site from the proposed scheme, there is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:240:no potential for the dredge vessels to cause any disturbance to seals hauled out at the site, including the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:240:dredged material offshore, would maintain the same distance from the sandbanks as vessels currently

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:240:The proposed dredging and other underwater activities (namely demolition and removal of existing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:240:relied upon solely. Therefore, any increases in suspended sediments during dredging or other activities will

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:240:Potential impacts on fish species during dredging and other underwater activities can result from the physical

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:241:Therefore, there sensitivity to any changes in prey availability as a result of the proposed dredging is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:241:prey availability during the proposed dredging has been based on the dredge footprint of 0.38km2 and the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:241:be present in the dredge area that could be impacted by any changes to prey availability

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:241: dredge area Negligible / very low magnitude

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:241: dredge area Grey seal Low

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242: • Underwater noise during dredging;

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242: • Vessel interactions (collision risk) during dredging and operational use of the quay;

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242: • Disturbance at seal haul-out sites during dredging;

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242: • Changes in water quality during dredging; and,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242: • Changes to prey resource during dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:It is important to note that there will be no changes to the overall maintenance dredging strategy currently

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:undertaken by PDT during operation, with maintenance dredging currently undertaken virtually daily within

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:dredging during the operational phase of the proposed scheme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:10.6.1 Underwater noise during maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:Underwater noise predicted to be generated from maintenance dredging is considered to be the same or

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:less as the underwater noise predicted to occur from the capital dredging activities. Therefore, the impact

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:of maintenance dredging will be the same or less as that assessed for the construction phase (see Section

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:the maximum number of animals that could be impacted as a result of underwater noise during the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:10.6.2 Vessel interactions (collision risk) during maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:The potential for any increased collision risk during the maintenance dredging operations is considered to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:maintenance dredging will be the same or less as that assessed for the construction phase (see Section

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:number of animals that could be at increased collision risk during the maintenance dredging. The impact

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:significance for harbour porpoise, minke whale, grey seal and harbour seal during maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:dredging activities. The residual impact would be of negligible significance.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:10.6.3 Disturbance at seal haul-out sites during maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:The potential for any disturbance at seal haul-out sites during maintenance dredging is considered to be the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:same or less as that assessed for the dredging activities during the construction phase, and therefore the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:impact significance for any disturbance at seal haul-out sites during maintenance dredging has been

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:10.6.4 Changes in water quality during maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:The potential impact of any changes to water quality during maintenance dredging is considered to be the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:same or less as that assessed for the dredging activities during the construction phase, and therefore the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:impact significance for any changes to water quality during maintenance dredging has been assessed as

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:10.6.5 Changes to prey resource during maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:The potential impact of any changes to prey resources during maintenance dredging is considered to be the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:same or less as that assessed for the dredging activities during the construction phase, and therefore the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:impact significance for any changes to prey resources during maintenance dredging has been assessed as

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:266:vessels or disturbed by underwater noise or dredging activities. The vessels used in construction activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:271: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:275: 7 P roposedDredg

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:277: P roposedDredg

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:278: P roposedDredg

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:284: the proposed channel dredge, berth pocket and wharf demolition footprint and includes the North

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:295:12.5.1 Loss of supporting habitat due to dredging / excavation and demolition

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:295:The dredging footprint in the main channel does not overlap with the intertidal habitat available at North

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:supporting habitat within the footprint of the proposed dredging and excavation represents just 0.3% of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:As discussed further in Section 13.5.1, dredging and excavation activities resulting in an increase in SSC

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:The area that may be affected by increases in SSC during dredging has been described in Section 6.5.2.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:In summary, the largest sediment plumes are likely to arise during Stage 2 of the dredging (i.e. BHD and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:TSHD working in parallel to dredge in the berth pocket and the main channel). During this stage, the zone

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:of influence extends approximately 750m downstream and 2,500m upstream of the dredged area (see

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:Stage 2 dredging, presented in Section 6.5.2 indicates that significant SSC excesses from the capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:dredging are confined to the dredging transects and are predicted to decrease significantly with increased

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:distance from the dredging vessel, both laterally and along the line of the vessel, with plumes diminishing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:297:the dredging campaign may overlap with part of the common tern breeding period.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:297:affected by dredging, as detailed in Section 12.3.2). The peak count in 2020 was a decrease on previous

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:297:important for foraging and therefore terns may be sensitive to the turbidity caused by dredging operations

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:297:species (e.g. Sandwich tern). Furthermore, the occurrence of frequent (almost daily) maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:297:As described above, the zone of influence of the Stage 2 dredge presented in Figure 6.39 significantly

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:297:levels are only predicted to exceed baseline levels during the dredging campaign (a period of approximately

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:297:2 dredging will only comprise approximately one month of the approximately five month dredging campaign,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298:and the other stages of the dredge campaign would result in a smaller plume than that described for Stage

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298: therefore be undertaken in long strips along the axis of the estuary rather than dredging across

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298: the width of the river. This is to reduce both the extent and impact of the dredged plume, as any

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298: channel. This approach has been proposed for other capital dredge operations in the Tees, such

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298:The deposition of fine sediment within intertidal areas due to capital dredging has the potential to affect

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298:dredging, is presented in Section 6.5.2. Fine sediment will be deposited within minutes or hours if carried

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298:in suspension from the point of release. Most falls within the dredged areas, whilst deposition elsewhere is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298:of the effects of capital dredging and therefore a negligible impact is predicted on the waterbirds relying on

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:299:from dredging and demolition works, represented as the day / night LAeq) at most receptor locations will be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:302:of construction personnel, plant / machinery, dredgers / other vessels and construction lighting. In particular,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:302:during dredging of the main channel, dredging vessels will operate in close proximity to the North Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:302:Mudflat and Vopak Foreshore. Dredging is due to continue for a period of approximately five months. This

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:302:end of the proposed scheme footprint are within 300m of the mudflat (not including dredging activities, which

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:During dredging of the main channel and the turning circle, dredging vessels will operate in close proximity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:to the North Tees Mudflat and Vopak Foreshore. Most notably, sections of the channel dredge footprint run

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:adjacent to the North Tees Mudflat (this is illustrated in Figure 11.2), therefore the presence of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:maintenance dredging vessels which operate on an almost daily basis within the channel, including within

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:that there will be further habituation over the dredging period and any effects would lessen through the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:Disturbances to birds at Vopak Foreshore would be limited to the very short-term dredging within the Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:limited to Stages 1 to 3 (a period of approximately 4.5 months), but only during times when the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:transect runs close to the mudflat (for example, when dredging the southern half of the river it is unlikely to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:and the mudflat itself extends over a kilometre upstream of the dredge footprint. As such, any displacement

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:Given the above, it is anticipated that visual disturbances from dredging operations would have a minor

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:The mitigation measures outlined in Section 12.5.2 would ensure that dredging vessels only operate along

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:the axis of the river, rather than across it, thus minimising the frequency of occasions whereby the dredger

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:operates adjacent to the North Tees Mudflat. There is no practical way of avoiding dredging activities since

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:304:as a result of dredging activities and residual noise from land-based piling works. The assessment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:304:concludes that there may be a minor adverse effect as a result of the dredging leading to fish moving away

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:307:The potential impacts on fish and other marine species and habitats from the offshore disposal of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:309: Extensive dredging activity is planned for this area of the River Tees,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:309: species such as European Eel, Atlantic Salmon and Lamprey, it is result of the dredging have been

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:309: likely that dredging activity will need to take into account the considered in Section 7, and the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:309: would entail limiting dredging activity to certain times of the year migratory fish is presented in Section

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:309:of underwater noise levels arising from construction works such as piling and dredging. This section

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:317: • Byelaw XXIII – Method and Area of Fishing (Scallop Dredges) Byelaw 2015 – prohibits any

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:317: scallop dredge activity within the Tees Estuary and any marine area within 3nm of the coast.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:318:vessels under 10m in length. As outlined in Section 13.4.2.1, trawling, scallop dredging and netting gear

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:318:13.5.1 Changes in marine water quality due to dredging activity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:318:During capital dredging, approximately 1.8Mm3 of sediment (including approximately 1.27Mm3 of soft

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:318:material) will be removed by TSHD and backhoe dredger, which will result in a temporary increase in SSC

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:318:in one phase, the capital dredge campaign is anticipated to continue for approximately four months. Full

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:318:dredging, is provided in Section 6. The peak suspended sediment concentration within the Tees during the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:dredging campaign is predicted to be around 85 mg/l, although this is very limited in extent and would only

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:it is very unlikely that disturbance of sediment during the dredging would result in exceedances of EQSs,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:affected areas (Appleby and Scarratt, 1989). However, given that maintenance dredging is regularly

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:undertaken with the Tees by PDT (almost daily maintenance dredging all year round), it can be reasonably

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:to the disturbances associated with dredging activity.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:it is assumed that the programme for the capital dredging in the proposed scheme may coincide with peak

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:during a period of very hot and dry weather. Modelling of the sediment plume during capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:the dredging activity and falls below 50mg/l a short distance from the area being dredged. Concentrations

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:of suspended sediments are predicted to decrease significantly with increased distance from the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:no more than a few hundred metres from the dredging source.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:to the proposed dredging, significant elevations in SSC are predicted to occur in the immediate vicinity of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:the dredger and along the streamline and, for the most part, are expected to be restricted to a relatively

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:dredging phases set out in Section 6, the maximum area affected by increased SSC includes the entire

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:migratory fish movement in the estuary, particularly in juvenile (smolt) stages. With the dredging lasting for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:journeys throughout the dredging campaign.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320: therefore be undertaken in long strips along the axis of the estuary rather than dredging across

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320: the width of the river. This is to reduce both the extent and impact of the dredged plume, as any

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320: dredging operation, as with other capital dredge operations in the Tees (e.g. Royal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:of the river at a time and, should dredging be undertaken during the months when migratory fish are present

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:which migratory fish will be able to move past the dredging activity (and for resident species to relocate to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:not viable since the size of dredger has to be sufficient to carry a large enough drag head and to have

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:sufficient propulsion power to undertake the required dredging operation.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:13.5.2 Entrainment of fish and fish eggs by dredging gear

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:Use of dredging apparatus, particularly TSHD dredge heads, could potentially lead to the entrainment of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:effects from direct uptake during dredging include physical injury, mortality and displacement. The potential

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:the lower Tees estuary, including the footprint of the proposed dredge, with plaice and dab notably abundant

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:Physical disturbance to the riverbed and noise/visual disturbance within close proximity to the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:crustaceans), with the presence of the dredge head likely resulting in them temporarily relocating away from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:the substrate or by other means, are likely to be sensitive to entrainment from dredging activities on that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:these species develop in the water column and are less sensitive to being entrained by dredge gear

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:operating at the seabed. Regardless, regular maintenance dredging undertaken within the proposed dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:risk of direct uptake of eggs during the capital dredge.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:since it would be limited to those present within the dredge footprint (an area of ~350,000m2). Given that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:of dredging on benthic habitat and food resources, assessed in Section 13.5.5.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:13.5.3 Underwater noise during dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:the dredging options) include movement of the drag head on the seabed, material suctioned through the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:TSHD dredgers are typically low frequencies, up to and including 1kHz (Robinson et al., 2011). Underwater

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:knots) (Theobald et al., 2011). Although backhoe dredging will also be employed during the capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:dredging, underwater noise associated with this method is generally considered to be lower than for TSHD

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:322:line system. As such, underwater sound arising from the dredging is expected to fall within the hearing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:322:such as those produced by operational dredging vessels, to fish, as presented in Table 13.8. Given a lack

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:323:For the purposes of this assessment, the risk that noise from dredging activities could result in mortality or

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:323: worst-case scenario (this form of dredging forms the worst-case scenario for the proposed scheme);

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:323: Tees Dock turning circle and the dredge footprint for the proposed scheme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:323: • The bathymetry and substrate in the proposed dredging location is broadly similar to that in the area

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:323:which certain unweighted RMS SPLs were expected to occur from both backhoe and TSHD dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:Table 13.9 Summary of the modelled ranges for unweighted RMS SPLs in 10dB increments for dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324: Unweighted RMS Backhoe dredging TSHD

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:Modelled ranges for backhoe dredging are notably less than they are for TSHD. For the most sensitive

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:when considering use of TSHD, and 5 to 10m from source when undertaking backhoe dredging). This is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:will be breaks in dredging activity during the dredge/disposal cycles, plus it is highly unlikely that fish would

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:dredging, during an underwater noise survey conducted by Subacoustech in 2014 (Royal HaskoningDHV,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:will be sustained for as long as dredging is ongoing (a period of approximately four months). Noise levels

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:from backhoe dredging are considerably lower, and only significantly exceed background levels within a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:vessels and almost daily maintenance dredging, and they would also be able to temporarily move to nearby,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:less affected areas within the river while dredging is ongoing. Potential impacts for migratory species are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:downstream, particularly if dredging is undertaken during key migratory periods (see Section 13.4.1.2).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:Given that significantly elevated noise levels produced during backhoe dredging are not expected to extend

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:The TSHD campaign is predicted to last for approximately four weeks. While dredge/disposal cycles will

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:dredging would likely be very similar to the almost-daily maintenance dredging activities undertaken in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:recommence once the dredging campaign has ceased. Furthermore, the noise levels at the site will abate

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:for the majority of each dredge/disposal cycle while the TSHD vessel transports material to and from the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:dredging campaign. As such, the significance of a potential barrier effects on migratory species caused by

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:Use of dredging vessels are imperative for the proposed scheme. While use of smaller dredger heads may

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:measure. Applying the measure set out in Section 13.5.1 (dredging along the axis of the river, rather than

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:across the river) will help to ensure that noise levels at the opposite side of the river from the dredger remain

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:as low as possible over a dredge/disposal cycle, but as stated above the elevated noise levels will be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:fish. Removal of the wharf would result in a permanent loss of such habitat. Additionally, capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:on benthic estuarine flora and fauna, the regular maintenance dredging undertaken by PDT within the river

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:channel leads to a conclusion that the area of subtidal to be affected by the proposed dredging is unlikely

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:to represent an important spawning or feeding site . Regardless, capital dredging activities on existing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:The ongoing maintenance dredging suggests that subtidal habitat in the proposed dredge footprint is likely

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:Given the maintenance dredging that occurs, it can be reasonably assumed that fish feeding within the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:dredging activity. For this reason, the general sensitivity of fish to temporary changes in subtidal habitat in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:Given the above, alteration of the subtidal habitat as a result of dredging activity is considered to have a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:As well as the subtidal area affected directly by dredging activity, the increases in SSC anticipated during

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:capital dredging activity will consequently result in an increase in sediment deposition, which has the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:within the dredged area, whilst other areas outside the dredge footprint affected are typically less than 5cm.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:In the small extent of subtidal area outside the dredge footprint that may be affected by a small amount of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:330:those already subject to regular maintenance dredging and/or experience high volume of vessel traffic and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:331:13.6.3 Change in maintenance dredging regime affecting supporting habitats and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:331:effects on the existing maintenance dredging strategy, and no changes to the present-day maintenance

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:331:dredging strategy are necessary. As such, there would be no additional impact on supporting benthic

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:331:habitats and prey resources beyond those already associated with the existing maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:334: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:334: Advertised Dredge Depths (m)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:334: Advertised Dredge Depths

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:335:to the presence of the dredger and barges within and adjacent to the navigation channel (as well as any

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:335:area in the vicinity of the proposed quay but the capital dredging will, at certain stages in the construction

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:335: • Post dredge surveys and promulgation.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:335:It is envisaged that PDT would manage any potential conflicts in the same way as routine dredging and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:335:Harbour Master. Management of dredging operations within a busy port environment is a standard activity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:337: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:337: dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:337: deposition will require periodic dredging to maintain the design depths.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:337: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:339: disposal of dredged material should be taken into account.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:341: The Tees has been subject to dredging in the recent past meaning the potential for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:343: heritage is likely to be limited by dredging within the immediate area of the proposed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:343: wreck sites whether these are situated within an area of proposed new dredging 16.4.1 and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:343: dredging and offshore disposal activities (Figure 6.2).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:344: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:345: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:351: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:352:known to have been found during dredging within the river channel and there is a submerged forest is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:352:located near Hartlepool on the north bank. Although extensive dredging and reclamation has taken place

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:353: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:354: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:355:reclamation and disturbance from previous dredging within the channel. Although there is high potential for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:356: • Dredged channel/area, Navigation feature (Section of navigable waters), Modern (AD1900 –

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:356:proposed scheme (dredging and construction of the new quay) are in keeping with the historic (and current)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:358: • capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:359:by the historic reclamation and disturbance from previous dredging within the channel.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:359:potential for remains to be present, if such remains are encountered during dredging or during excavations

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:359:If present, dredging within the turning circle and approach channel and dredging / excavation to create the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:359:to effects during construction it is concluded that, other than within the dredged areas, sediment deposition

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:359:it will subsequently be dredged as part of ongoing maintenance dredging regimes, whilst material deposited

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:359:back into the newly dredged areas will be re-dredged during the capital works in order to achieve the desired

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:360: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:360: o in the main channel the deposition will require periodic dredging to maintain the design

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:360: construction as impacts are expected to already have occurred during the capital dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:360: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:367: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:373: • Dredging; and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:375: Dredging THSD/backhoe 1 C7.2 60 110.3

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:385: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:388: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:390: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:395: Dredging (one backhoe, one TSHD, two 6 20

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:395:Vessels used for the proposed dredging would be in use for a relatively short amount of time (approximately

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:424:comments on their requirements when considering the potential impact of dredging on the estuary, the need

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:426:namely the proposed dredge footprint, is in Flood Zone 3, associated with the 1 in 200-year return period

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:427: 3.7 * The proposed dredge footprint at the Tees Dock

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:454:dredging activity which are likely to translate to very small direct employment effects. As such, adopting the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:454:occur during demolition, quay construction, excavation and dredging phases. Assuming a gradual ramping

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:465: • fuel consumption from marine vessels, dredgers and road traffic; and,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:467:Capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:467:Capital dredging will be carried out within part of the Tees Dock turning circle, within parts of the existing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:467:navigation channel and within areas not currently subject to maintenance dredging to create a berth pocket.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:467:This would include dredging of marine sediments and excavation of soils / landside material within the river

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:467:The total dredged volume for marine sediments is predicted to be approximately 1,800,000m3. Dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:467:will be undertaken using a combination of a TSHD and a backhoe dredger. Different backhoe dredgers will

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:467:the transport of sediment dredged using the backhoe dredger to the offshore disposal site.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:468:Information for the calculation of GHG emissions from dredging are provided in Table 22.5.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:468:Table 22.5 Specifications of dredgers and barges to be used during the construction phase

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:468: Number of dredgers 1 1 1

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:468: Installed power dredger (kW) 8,313 1,600 1,600

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:468: dredger and barge)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:468: Power load factor estimate – dredger 50% 75% 80%

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:468:In addition to the workboats associated with demolition listed in Table 22.4, and dredgers and barges listed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:471: Construction dredger 6

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:478:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:478:The proposed scheme is predicted to generate up to approximately 1,800,000m3 of dredged sediment from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:478:been undertaken on a worst-case basis whereby all dredged sediment from the Tees estuary would be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:478:26.2 Modelling the dispersion and deposition of capital dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:478:To inform the assessment of environmental impacts from predicted offshore disposal of dredged material,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:479:The proposed disposal of dredged material within the Tees Bay C offshore disposal site has the potential

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:479:within and beyond the boundary of the Tees Bay C site due to disposal of dredged material. Seabed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:479:that there would be negligible impact on fish or fisheries due to the proposed deposition of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:479:In 2010, CEFAS undertook the ‘SLAB5’ dredged material disposal site sampling survey at a number of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:482:The proposed disposal of dredged material at the Tees Bay C offshore disposal site would be significantly

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:482:arise from offshore disposal of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:482:disposal site (an area which is designated specifically for the disposal of dredged material), however the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:invasive species Theora lubrica were found in samples from the Tees estuary, within the NGCT dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:are within the areas which are subject to regular maintenance dredging by PDT, however were located

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:outside of the proposed dredge footprint for the proposed South Bank scheme. The proposed dredging and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:dredge footprint prior to the dredge taking place (if they are not there already).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:species are not present at levels of concern within the Tees estuary. Maintenance dredged material from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:Bay for many years and will continue into the future. As a result, the disposal of dredged material within

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:(beyond that which has already occurred from previous and ongoing maintenance dredge disposal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:To undertake the disposal operation, the TSHD and/or disposal barges would transport dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:from the proposed dredge footprint to the Tees Bay C offshore disposal site. Consequently, there is potential

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:The disposal operations are linked to the dredging task and would require regular movements of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:plant between the dredge site and the disposal site, via the navigation channel and the coastal waters of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:dredged material offshore would be low (i.e. a TSHD and/or a barge), and no impact is predicted.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:The proposed disposal of dredged material has the potential to result in shallowing of the water depth above

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:significantly impacts navigation. It is concluded that the proposed disposal of dredged material into the Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:The underwater noise predicted to arise from the proposed dredging activities have been used as a proxy

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:for the assessment of potential impacts associated with offshore disposal of dredged sediments (see

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:disposal of dredged sediments are likely to be less than those generated during dredging activities. The

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:impact ranges are based on those modelled for the Hartlepool approach channel dredging scheme (see

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:As outlined in Section 10.5.1, there would be no risk of any PTS as a result of the proposed dredge and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:consequently this conclusion also applies to the proposed offshore disposal of dredged material.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:display a fleeing response, as a result of underwater noise during offshore disposal of dredged sediments

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:offshore disposal of dredged sediments

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485: et al., 2019) dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485: disposal of dredged 0.003km2

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:result of underwater noise associated with offshore disposal of dredged sediments

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485: disposal of dredged (0.0000006% of the NE England MU) (temporary effect with less than 1% of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:486:dredged sediments is negligible / very low for harbour porpoise, minke whale, grey seal and harbour seal,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:486:disposal of dredged sediments would be limited to the immediate vicinity of the vessels while they are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:486:disposing of the dredged material. The number of harbour porpoise, minke whale, grey seal and harbour

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:486:dredged sediments on harbour porpoise, minke whale, grey seal and harbour seal, has been assessed as

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:486:Table 26.5 Assessment of impact significance for underwater noise during offshore disposal of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:486: dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:486:Potential for vessel interactions (collision risk) with marine mammals during disposal of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:487: of dredged 0.002 grey seal Negligible / very low magnitude

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:487:potential increase in collision risk with vessels during offshore disposal of dredged sediments has been

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:487: of dredged very low

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:487:disturbance due to the disposal of dredged sediment into the disposal site to seals at Seal Sands, including

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:488:As outlined in Section10.5.4, any vessels passing the seal haul-out sites as they take the dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:488:dredged sediment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:488:The offshore disposal of dredged material would temporarily increase the suspended sediment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:488:Changes to marine mammals prey resource during offshore disposal of dredged sediment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:491:the basis of the potential extent of the dredging and disposal plumes.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:492: Proposed quayside works and dredging at its North Sea supply base Approximately

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:492: The NGCT scheme comprises capital dredging up to 4.8 million m3

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:492: disposal of dredged material offshore, construction of a new 1.5km The NGCT scheme is located in very close

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:492: NGCT elements (buildings, rail terminal, road access, lighting, drainage Dredge footprint therefore is screened into the CIA.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:492: • dredging up to 750,000m3 of material from the approach

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:493: • dredging up to 372,000m3 of material from the approach

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:493: In addition to the proposed dredge (and associated disposal of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:493: dredged material), PDT is proposing to construct an underwater

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:493: being undermined following the proposed dredge.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: nature of this activity, maintenance dredging and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: for the area. However, maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: dredging at Hartlepool This activity has been ongoing for many years. 0km capital dredging activity required for South Bank

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: dredging at Hartlepool channel as the effects of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: 1 and Dolphin D, and a dredge of the river bed adjacent to the Consent in place small scale that there would be no significant

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: (with associated disposal of dredged material) to extend the existing dredge footprint cumulative impacts.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: Given that the dredge footprint largely overlaps

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: dredging in Tees Dock, which, given its location,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: The Tees Channel Dredge project involves a proposed deepening of would have no means of affecting the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: maximum maintained depth of 14m below CD. An Environmental estuary system), the area would be dredged by

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: Tees Channel Dredge Scoping Report (Royal HaskoningDHV, 2016) was submitted to the 0km either the South Bank project or the Tees Channel

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: MMO alongside a request for a scoping opinion for the project in Dredge project (not both). This removes the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: report has not yet been undertaken. Tees Channel Dredge project, therefore, has not

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:495: • Dredging of the existing berth and disposal of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: The MMO sees the proposed dredge as a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: maintenance dredge activity. Given the frequency,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: PDT is proposing to undertake a dredge of the approach channel to dredging, maintenance dredging and disposal is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: MMO has confirmed that PDT should submit a variation request to However, the proposed dredge could be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: Tees channel dredge its existing maintenance dredge licence in order to dispose of the undertaken at the same time as the capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: dredged material (i.e. the MMO sees the proposed dredge as a dredging activity required for South Bank (albeit

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: maintenance dredge activity). PDT’s intention is to undertake the within a different part of the estuary).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: dredge during 2020/2021.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: under the ‘maintenance dredge’ umbrella

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:American Harbour Facilities schemes and the ongoing maintenance dredging in the Tees estuary:

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500: • dispersion of suspended sediment during capital dredging and deposition at the offshore disposal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:Maintenance dredging at Hartlepool and within the Tees estuary has been on-going for many years. Given

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:the frequency, duration and the ongoing nature of this activity, maintenance dredging and disposal is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:Dispersion of suspended sediment and deposition on the seabed during capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:All projects scoped into the CIA involve will involve capital dredging. This activity will create a plume of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:During the capital dredging works for the proposed scheme, other port facilities on the Tees will remain

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:operational. Maintenance dredging is, therefore, expected to continue throughout the capital dredge period.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:The capital dredge is also expected to influence the maintenance dredging requirements during and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:The extent of the sediment plume created by capital dredging is heavily dependent on the dredging plant

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:that is adopted, and this is determined by (amongst other factors) the nature of the bed and the dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:likely dredge plant that would be adopted and, in some cases, assumed that different types of plant would

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:be used for dredging different sediment types as part of the same project. As noted in Section 6.5.2, it is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:affected by a plume at some point during the dredging or disposal activities (in some areas this will be on a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:of sediment plume dispersion and deposition onto the river and/or seabed during capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501: Combined maximum zone of influence from Stages 1 - 4 inclusive of the dredging activities

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:NGCT TSHD dredging sand in the approach channel in low river flow, spring tide

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:sediment in the water column was predicted to be in close proximity to the dredger, with plume dispersion

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:dredging (and reclamation for NGCT) over the slack water period. In practice, much of this deposited

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:material will be re-dredged as part of the capital works for each scheme. At the peripheries of each plume,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:It should be noted that the potential for cumulative effects only arises should the dredging for the proposed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:502:(right) as a result of the proposed scheme [Note: plots show sediment plume impacts arising from dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:502:activities during Stages 1 - 4 inclusive of the capital dredging programme]

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:The potential impacts of the maintenance dredging programme in the Tees are considered within the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:Maintenance Dredging Baseline Document (Royal Haskoning, 2008). This consideration is specifically in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:the context of the implications of maintenance dredging for the Teesmouth and Cleveland Coast SPA and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503: • effect of increases in suspended sediments during maintenance dredging on food resources of SPA

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503: • increased noise levels (disturbance) during maintenance dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:The Maintenance Dredging Baseline Document 2008 concluded that maintenance dredging represents a

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:potential supply of fine material to Seal Sands, with the timing of maintenance dredging in relation to the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:however, the Maintenance Dredging Baseline Document concluded that the maintenance dredging activity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:The WFD assessment presented in the latest annual update to the Maintenance Dredging Baseline

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:Document (Royal HaskoningDHV, 2019) concluded that, at water body level, maintenance dredging at

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:capital dredging have been proposed for the Anglo American Harbour facilities and the NGCT. For the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:former project, mitigation comprises the use of specialist dredging equipment (i.e. an enclosed grab loading

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:into a sealed barge) for dredging of unconsolidated material to minimise resuspension in the water column.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:This requirement is specified because of the elevated concentration of contaminants within the dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:504:will be no impact on tidal propagation or water levels due to the limited area of proposed dredging for this

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:504:channel in the lower estuary that will arise from capital dredging for the NGCT.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:504:that the proposed new quay alignment and capital dredge will not significantly affect the existing baseline

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:504:the dredging is predicted to draw some of the flow to the south side of the estuary, although such effects

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:505:require periodic dredging to maintain the design depths (a 10% increase in annual maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:505:proposed dredge).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:505:offshore; with the potential to increase the maintenance dredging requirements by about 10%. No increase

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:505:used for, maintenance dredging, and no effect on sediment supply to intertidal areas throughout the Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:505:The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:505:material to Seal Sands. However, the latest annual update to the Maintenance Dredging Baseline

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:505:maintenance dredging regime could adversely affect the overall estuary morphology and the ongoing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506:maintenance dredging in the Tees estuary as follows:

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506: • dispersion of suspended sediment during marine works, dredging and disposal; and,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506:cumulative effects only arises should dredging for each scheme coincide. Under such circumstances, the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506:timing of the projects and their respective programmes of capital dredging will coincide to result in a scenario

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506:across the estuary and navigational safety is unlikely to support dredging on different sides of the estuary

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506:In terms of maintenance dredging, there is the possibility that maintenance dredging could occur at the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506:relatively localised effects to the dredger produced in the hydrodynamic modelling assessment for the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506:similar throughout the estuary where regular maintenance dredging occurs. As a result, and noting the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:507:within the footprint of the proposed scheme, where the intertidal area will be dredged to create the berth

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:507:capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:507:Sediment deposition resulting from the dredging for the proposed scheme will largely be within the proposed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:507:dredged footprint. Deposition that occurs in other parts of the river is predicted to be much lower, typically

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:507:are largely similar; however, the effect of the NGCT dredge is larger, with deposition predicted to extend

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:508:Maintenance dredging is targeted at areas that require dredging to maintain navigable depths and, although

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:508:Based on the above, it is concluded that there will be no cumulative effect on the maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:508:modelled for piling and dredging for the Hartlepool approach channel (Table 27.3).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:508:dredging based on NMFS (2018) criteria for Hartlepool approach channel scheme modelling

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:508: during dredging South Bank Harbour porpoise 153 dB re 1 µPa HF SELcum 0.7km

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:509:dredging at the proposed South Bank scheme, NGCT, Hartlepool approach channel and Anglo American

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:509:temporary auditory injury (TTS) or a fleeing response from cumulative impacts of piling and dredging at the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:509: during dredging – III Block O density of 0.888/km2.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:510: during piling and dredging – density of 0.01/km2. population anticipated to be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:510:or dredging noise from the proposed scheme, NGCT, Hartlepool approach channel and Anglo American

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:510:disturbance as a result of cumulative underwater noise impacts from piling and dredging activities on

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:511:dredging activities on marine mammals

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:511: dredging at the Negligible /

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:511: • Ongoing maintenance dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:511: • Tees channel dredge.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:of the proposed scheme, should it be undertaken at the same time as the dredging required for the NGCT,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:dredging works that exist within the Tees estuary. As stated in Section 12.5.2, the main receptor that may

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:In order for a potential cumulative impact to manifest, the dredging campaign for the proposed scheme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:would need to coincide with at least one of the other dredging campaigns noted above, and both would need

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:this occurs, the zones of influence from dredging would create an additive effect, as demonstrated in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:more dredge campaigns ongoing at any one time.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:(i.e. dredging along the axis of the river rather than across it to ensure that, at any one time, sediment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:Anglo American Harbours facilities scheme, specialist dredging equipment (i.e. an enclosed grab loading

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:into a sealed barge) will be used for dredging of unconsolidated material to minimise resuspension in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:Stage 2 of the proposed capital dredging coincide with the Hartlepool Channel deepening works, the two

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:dredging plumes together will still affect only around 0.5% of the SPA subtidal habitat (Royal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:HaskoningDHV, 2015)). However, the additive effect of the sediment plumes from separate dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:Changes in marine water quality due to dredging activity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:require dredging, including the NGCT, Anglo American Harbour Facilities and the ongoing maintenance

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:dredging works. The main receptors that may be affected by this cumulative effect are migratory species,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:Should two or more of the dredging campaigns for the proposed scheme, the NGCT scheme, the Anglo

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:American Harbour facilities scheme and the ongoing maintenance dredging be undertaken simultaneously,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:and preventing migration, should the dredging be undertaken during the peak migration season.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:scheme in Section 13.5.1 (i.e. dredging along the axis of the river, rather than across it to ensure that, at

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:of the sediment plumes from separate dredging campaigns cannot be completely avoided if the campaigns

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:Underwater noise from the proposed scheme is predicted to arise from both dredging and land-based pile

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:the land-based piling, there may be minor adverse impacts from the dredging noises which could potentially

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:Should the dredging campaign for the proposed scheme coincide with dredging from one or more of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:NGCT scheme, the Anglo American Harbour facilities scheme and the ongoing maintenance dredging, the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:Given the regularity of maintenance dredging within the channel, resident and migratory fish in the estuary

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:reduce the magnitude of impacts from individual dredges. It has to be recognised that underwater noises

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:in isolation, though it is highly unlikely that there would be more than one or two dredge campaigns ongoing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:American Harbour Facilities scheme. The South Bank dredge footprint will pass adjacent to the site of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:Anglo American Harbour Facilities and the NGCT dredge footprint (overlapping with the proposed dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:516:to this are the dredging footprint for the Tees Dock turning circle (which is also included as part of NGCT

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:517:dredge footprint), and the landward part of the proposed scheme of this application (which overlaps in part

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:517:However, as the dredging for the turning circle will only take place once, either for NGCT or for the scheme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:521:27.5.22 Disposal of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:521:The proposed scheme involves the requirement to dispose of up to 1,800,000m3 of dredged material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:521:offshore, should no beneficial re-use options be forthcoming prior to the dredge taking place. Section 26

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:521:concludes that the disposal of dredged material will have a negligible impact on fisheries, marine ecology

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:522:estuarine-and-coastal-waters. The proposed quay, dredge area, disposal site and WFD water body outlines

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:522:maintenance dredging campaigns would be on a significantly smaller scale than the capital dredging and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:522:that the estuary is already subject to ongoing maintenance dredging, scoping is undertaken on capital

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:522:dredging only.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:523: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:524: • C2 Capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:524: dredger.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:526: 22.Dredging disposal strategy

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:526: 23.Reduce impact of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:526: 25.Retime dredging or disposal None identified

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:526: 27. Dredge disposal site selection

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:528:C2 Capital dredging hydromorphology and WFD mitigation are no higher sensitivity water quality due to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:528: 500m. during dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:529:C2 Capital Dredging No – dredging will not impact on the groundwater body

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:530:28.5 Detailed assessment – C2 Capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:531: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:531: to the new quay alignment) and the local deepening of the bed due to the capital dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:531: the deposition will require periodic dredging to maintain the design depths.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:531:in mean tidal prism as a result of the new quay’s set-back alignment and dredging of part of the existing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532:Overall therefore, the effects of the capital dredging and presence of new quay wall on the flow conditions

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532:Capital dredging within the river would result in sediment plumes. To consider the potential extent and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532:model MIKE3-HD and run for the four-month period over which dredging is predicted to occur. The

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532:simulations also accounted for the movement of dredgers and transport barges (including dredging, sailing,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: BHD working to dredge the In all tidal conditions modelled, the lateral extent of the plume across the river channel

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: created by the different dredgers. At some points in the cycle, areas of these initially

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: parallel to dredge the middle

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: 3 BHD working to dredge the The maximum concentrations and the spatial extents of the plume arising from Stage

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: bottom hard material in the 3 of the dredging are much lower than those experienced during Stage 1 largely

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: berthing pocket and river because the material being released is coarser and the production rate of dredging is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: channel. notably lower. Plume very small and located close to the dredging activity.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: 4 Again, peak concentrations close to the dredger are shown in the plume modelling

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: parallel to dredge the material

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:533: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:concentations within an hour. All other stages of proposed dredging either do not cause elevations or only

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:Tyne for the New Tyne Crossing to predict the consequences of dredging on dissolved oxygen

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:such as dredging times, seasonal fluctuations and river flows, the modelling predicted only small differences

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:between background and dredging impacted dissolved oxygen concentrations. No difference was noted

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:between the summer and winter concentrations. Furthermore, dredging in the Tyne is considered to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:limited plume extents for the majority of the capital dredge for the proposed scheme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:dissolved oxygen concentrations are only likely to be an issue when dredging within an area with an existing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:monitoring of dredging suggests effects are unlikely. Given the water body has a classification status of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535: • A relatively large proportion of the total volume of dredged material is anticipated to comprise

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535: the dredge area.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535: • The daily dredge volume is likely to be less than that accounted for due to stoppages associated

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535: • The calculation is based on loss from a TSHD whereas a considerable component of the dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535: will be undertaken with a backhoe dredger which has a lower production rate and therefore

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535:with hours) for Stage 2 which reduce as dredging progresses (see Figure 28.4).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535:suspended solids when in close proximity to the dredger. As a result, a non-temporary deterioration in water

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535:The majority of the proposed dredge footprint is located within the subtidal parts of the Tees estuary and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535:therefore the majority of the dredge would impact on the lower sensitivity habitat ‘subtidal soft sediment’ of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535:locate the quay in the riverbank (i.e. on land), dredging and excavation in front of the quay wall to create the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:536:Information regarding the habitat located within the dredge footprint is to be confirmed with a site specific

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:536:collected to inform the ES for NGCT are likely to be similar in nature to those found within the dredge

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:536:most frequently in the estuarine locations (and within the area to be dredged for this project) was EUNIS

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:536:The biotopes recorded in the 2019 survey are likely to reflect those located in the dredge area given their

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:536:Whilst capital dredging would remove material from the seabed it would not alter the habitat type available

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:536:composition and numbers following dredging, it is predicted that the sediment communities would recover

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:537:It is also recognised that the proposed dredge footprint is within close proximity to the North Tees mudflat,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:537:Sediment suspended within the dredging plumes will fall to the riverbed, either soon after disturbance or

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:537:spillage occurring during the dredging operation (for coarser-grained sediment fractions), or at a point in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:537:by deposition. It can be seen that much of the sediment falls to the bed within the dredged areas (from

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:537:where it will be re-dredged to achieve the necessary bed depths), whilst the deposition that occurs in other

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:538:Figure 28.5 Maximum river bed thickness change due to sediment deposition arising from dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:538:activities during Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539:affected areas (Appleby and Scarratt, 1989). However, given that maintenance dredging is regularly

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539:affected area would likely be relatively tolerant / acclimatised to the disturbances associated with dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539:areas of the estuary at any one time. Additionally, it is proposed that dredging would be limited to one side

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539:past the dredging activity (and for resident species to relocate to largely undisturbed areas), thus reducing

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: There would be a temporary presence of dredging vessels but

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: Dredging disposal strategy Whilst there would be a temporary increase in material that

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: Reduce impact of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: would not alter significantly the maintenance dredging and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: Retime dredging or disposal MMO and their advisors Cefas.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: Dredging would be managed in line with mitigation measures

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: Dredge and disposal site selection agreed for various environmental topics which include

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: dredging along the axis of the river to ensure the plumes are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: a result of the capital dredge is provided in Section 28.5.3.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:540:The combined effects of the dredge area and presence of new quay wall set back in the embankment are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:540: Dredging disposal strategy

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:541: Reduce impact of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:541: Retime dredging or disposal Riverbank excavation would not impact on these mitigation

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:541: Dredge and disposal site selection

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:542:The combined effects of the dredge area and presence of new quay wall set back in the embankment are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:542: Dredging disposal strategy

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:542: Reduce impact of dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:542: Retime dredging or disposal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:542: Dredge and disposal site selection

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:542: on marine ecology are related to dredging of the berth and are

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:543: deepened areas associated with the capital dredge which could have effects on ecological

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:543: • The combined effect of the loss of intertidal habitat (dredged berth), loss of subtidal (rock blanket)

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:543: and temporary disturbance of subtidal habitat (capital dredge) on ecological potential of the WFD

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:544: • The combined effect of dredging and effects associated with piling and riverbank excavation on

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:544:same as the effects predicted for the capital dredging alone.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:544:predicted to be temporary and a significant portion of the dredge area is already subject to maintenance

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:544:dredging so is already disturbed and supports communities habituated to this disturbance. The remaining

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:544: • Ongoing maintenance dredging in the Tees estuary.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:544:All schemes require dredging and construction of new riverbank structures and therefore the following

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:544: • Disturbance of marine habitats associated with dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:maximum concentrations of suspended solids are localised to the dredging activity and quickly disperse

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:with distance from the dredger. Additionally, peaks are relatively short lived (approximately an hour at a time

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:for the proposed scheme for example) and associated with specific dredging phases of each scheme. The

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:water column would be significantly increased by the projects all dredging at the same time. Where

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:proposed project both include mitigation measures to dredge in long strips to reduce the effects of sediment

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:dredgers would be working on different sides of the estuary and therefore clear channels would be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:Any project that requires dredging would disturb the marine communities within the sediments to be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:dredged. However, PDT undertake maintenance dredging in the majority of the estuary. Consequently, all

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:disturbance. Given dredging for all projects would not alter the substrate type or exposure, subtidal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:index are not predicted given the existing maintenance dredging which would be accounted for in the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:proximity to the dredging over the slack water period for all projects. In practice, much of this deposited

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:material will be re-dredged as part of the capital works for each scheme. Beyond the immediate deposition

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:547: or water levels due to the limited area of proposed dredging for this project. Cumulative effects are therefore not predicted over and above those identified for the scheme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:547: Currents Modelling for the proposed scheme showed that the new quay alignment and capital dredge would have very small localised effects predominantly near to the quay wall but

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:547: require periodic dredging equivalent to a 10% increase in annual maintenance dredging requirement.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:547: material to the Tees estuary from offshore; with the potential to increase the maintenance dredging requirements by about 10%. No increase in sandy infill was predicted. A

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:547: changes in current speeds but that this would not alter the present frequency of, or methodology used for, maintenance dredging. Additionally, no effect was identified on

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:548: The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine material to Seal Sands. However, the latest annual update to the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:548: Maintenance Dredging Baseline Document (Royal HaskoningDHV, 2019) concludes that the current maintenance dredging regime does not adversely affect the overall

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:548: estuary morphology and the ongoing morphological processes at work. Additionally, maintenance dredging forms part of the baseline for WFD classification given that it is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:549:dredging’ identified risks to all WFD quality elements but detailed assessment deemed that the impacts

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:549:the locality of the dredger and only for hours at a time during Stage 2 of the proposed dredge programme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:549:All other stages of dredging required for the proposed scheme did not indicate significant concentrations of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:549:protect resident and migratory fish further reduce this risk as dredging will be limited to occurring in long

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:550:These were NGCT, Anglo American Harbour Facilities and ongoing maintenance dredging in the estuary.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:550:would be sediment plumes associated with dredging simultaneously. However, on further consideration,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:550:peak concentrations for all projects are restricted to close proximity to the dredger and disperse with

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:550:projects would occur at the same time. Mitigation measures such as dredging in long strips as required for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:555: dredging, excavation and demolition works.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:555: • Sand and shingle • Water quality reductions from demolition and dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:555: with offshore disposal of dredged material have been

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:556: Northumberland a result of underwater noise during dredging and • No pathways for effect

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:557: (100km south porpoise as a result of underwater noise during dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:557: • Mudflats and sandflats not due to underwater noise from dredging and offshore

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:559:dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:559:influence of the proposed scheme will be determined by the sediment plume during dredging activities.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:561: Proposed quayside works and dredging at its North Sea supply base Approximately

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:562: The NGCT scheme comprises capital dredging up to 4.8 million m3 Should the NGCT scheme coincide with the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:562: disposal of dredged material offshore, construction of a new 1.5km interest features of the SPA / Ramsar site could

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:562: NGCT elements (buildings, rail terminal, road access, lighting, drainage Dredge footprint noise, visual disturbance and water quality

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:562: • dredging up to 750,000m3 of material from the approach scheme, in-combination effects to the interest

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:562: • dredging up to 372,000m3 of material from the approach

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: In addition to the proposed dredge (and associated disposal of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: dredged material), PDT is proposing to construct an underwater

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: being undermined following the proposed dredge.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: nature of this activity, maintenance dredging and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: for the area. Although maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: Ongoing maintenance dredging for the scheme, there is potential for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: dredging at Hartlepool This activity has been ongoing for many years. 0km maintenance dredging elsewhere within the Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: and in the Tees estuary to coincide with the capital dredging, which could

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: The effects of maintenance dredging at Hartlepool

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: maintenance dredge disposal licence) would not

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: refurbishment 1 and Dolphin D, and a dredge of the river bed (with associated

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: dredge footprint combination effects.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: disposal of dredged material) to extend the existing berth pocket

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: The dredge footprint for the proposed scheme

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: overlaps with the proposed Tees channel dredge.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: The Tees Channel Dredge project involves a proposed deepening of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: Tees Channel Dredge Scoping Report (Royal HaskoningDHV, 2016) was submitted to the 0km

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: the Tees Channel dredge would not be undertaken

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:565: • Dredging of the existing berth and disposal of dredged

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:566: dredge as a maintenance dredge activity. Given

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:566: PDT is proposing to undertake a dredge of the approach channel to maintenance dredging within the Tees, this activity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:566: its existing maintenance dredge licence in order to dispose of the capital dredging activity required for the proposed

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:566: dredged material (i.e. the MMO sees the proposed dredge as a scheme (albeit within a different part of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:566: maintenance dredge activity). PDT’s intention is to undertake the estuary).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:566: dredge during 2020/2021.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:566: under the ‘maintenance dredge’ umbrella

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:570: • Loss of intertidal feeding resource due to dredging and excavation to create the berth pocket.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:570: • Indirect impacts on foraging behaviour as a result of impacts to prey resource from capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:570: • Maintenance dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:572:Effects on water quality due to dredging and disposal

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:572:The capital dredging of the river will cause plumes of sediment to form. The plume effects arising from the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:572:river dredging are characterised by a short-lived localised increase in suspended sediment concentrations

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:572:by the order of a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:572:extent and reduction in concentration over the following hours. Since the dredging is a near-continuous

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:572:at varying extents depending on the dredging activities undertaken at any one time. Deposition thicknesses

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:be sustained in light of sea level rise. In the main channel, the deposition will require periodic dredging to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:maintain design depths. An increase in annual maintenance dredging requirement considered in Section

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:6 is predicted to yield a very low overall contribution to the net annual maintenance dredging requirements

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:from the estuary as a whole and the potential increase in maintenance dredging requirement could easily

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:be managed within existing maintenance dredging regimes (i.e. no change to the existing maintenance

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:dredge strategy is required).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:new quay’s set-back alignment and dredging of part of the existing estuary bed is 150,901m3. This

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:SPA, behind the existing wharf, to subtidal habitat, due to the capital dredging and excavation required to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:create the berth pocket. The dredging footprint in the channel and the Tees Dock turning circle does not

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:mudflat / other intertidal types in the estuary (i.e. the dredge will be within subtidal areas only). Dredging in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:574:as foraging grounds, indicated by WeBS core counts for the two sectors in which capital dredging will be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:574:subject to regular (almost daily) maintenance dredging by PDT therefore the impact of the capital dredge is

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:574:the proposed capital dredge. Furthermore, the subtidal area within the proposed dredge footprint represents

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:While 32.5ha of subtidal will be affected by the proposed capital dredging, the area already experiences

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:regular (almost daily) maintenance dredging by PDT so there are not expected to be any long-term changes

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:With the application of mitigation in the form of ensuring that the capital dredging transects run along the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:dredging activities associated with the highest modelled increase in SSC (i.e. Stage 2 of the dredging, which

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:The sediment dispersion modelling of Stage 2 dredging indicates that, at any given time, significant SSC

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:excesses from the capital dredging are confined to the dredging transects and are predicted to decrease

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:significantly with increased distance from the dredging vessel, both laterally and along the line of the vessel,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:month dredging programme.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:England, 2018a). The area affected by the sediment plume generated from proposed dredging, though

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:Maintenance dredging in the channel, undertaken by PDT on an almost-daily basis, infers that terns using

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:dredged.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:foraging opportunities during the capital dredging are not considered to represent a significant change to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:576:approximately five-month duration of the capital dredging campaign. As such, there are expected to be no

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:576:concludes that the periodic nature of underwater noise, plus the likely habituation to background dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:576:noise due to regular maintenance dredging, means that impacts on fish are considered to be of minor

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:576:opportunities during the capital dredging are not considered to represent a significant change to foraging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:578:construction personnel, plant / machinery, dredgers / other vessels and construction lighting. Sections

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:scheme footprint (not including dredging activities, which are considered separately below), therefore for

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:During dredging of the main channel and the turning circle, dredging vessels will operate in close proximity

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:to the North Tees Mudflat and Vopak Foreshore. Most notably, sections of the channel dredge footprint run

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:adjacent to the North Tees Mudflat, therefore the presence of dredging vessels may result in disturbance to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:dredging vessels which operate on an almost daily basis within the channel, including within 30m of the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:habituation over the proposed capital dredging period and any effects would lessen through the course of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:Disturbances at Vopak Foreshore would be limited to the approximately one week of dredging required to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:approximately 4.5 months of dredging required further upstream, but only during times when the dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:transect runs close to the mudflat (for example, when dredging the southern half of the river it is unlikely to

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:threshold, and the mudflat itself extends over a kilometre upstream of the proposed dredge footprint. As

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:580:associated with the capital dredging has been assumed to represent a temporary loss of foraging habitat in

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:580:various impacts commonly associated with dredging and industrial work in the Tees. As such, the number

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:581:adjacent to the dredging footprint. The proposed scheme will result in the conversion of approximately 2.5ha

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:581:of intertidal to subtidal habitat, demolition of artificial structures and dredging of an area of approximately

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:581:As stated in Section 29.5.4, the effects of capital dredging on subtidal habitat are considered to be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:581:characteristic of a disturbed environment regularly affected by ongoing maintenance dredging). Impacts on

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:projects. However, dredging activity may, at worst, lead to some localised redistribution on North Tees

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:the ongoing PDT maintenance dredging, have the potential to cause similar disturbance to the Vopak

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:Foreshore and / or North Tees Mudflat due to dredging activity in the channel. However, the dredge footprint

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:for the proposed scheme overlaps in part with the NGCT dredge footprint at the Tees Dock turning circle.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:The dredge at Tees Dock turning circle would therefore only be undertaken by one of these schemes, which

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:reduces the potential for in-combination disturbance to birds at Vopak foreshore. Maintenance dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:within the estuary occurs on an almost daily basis; such dredging was ongoing at the time the SPA and

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:Ramsar site was extended and has been occurring for many years. It is therefore concluded that dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:dredging for all schemes screened into the assessment be required at the same time (which is highly

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:approach channel scheme and the ongoing maintenance dredging by PDT.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:An interaction between the sediment plumes would only occur in the unlikely event that the capital dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:low, with any effect confined to the footprint of the proposed dredge. The predicted increase in suspended

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:impact dissipating within 10 minutes following completion of the dredge (Royal HaskoningDHV, 2018).

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:Harbour Facilities scheme, the ongoing maintenance dredging and the Dogger Bank Teesside A & Sofia

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:dredging transects oriented along the axis of the river rather than across to ensure that, at any one time,

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:For the Anglo American Harbours facilities scheme specialist dredging equipment (i.e. an enclosed grab

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:loading into a sealed barge) will be used for dredging of unconsolidated material to minimise resuspension

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:extensive (and on-going) maintenance dredging within the channel on an almost-daily basis, common terns

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:585:on land are excluded. The ongoing maintenance dredging is also not considered here as this forms part of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:585:increase in maintenance dredging requirement is not expected to be significant and could easily be

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:585:managed within existing maintenance dredging and offshore disposal regimes.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:585:been subject to maintenance dredging and offshore disposal as part of ongoing maintenance dredging.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:586:impacts commonly associated with dredging and industrial work in the Tees, regardless. As such, the

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:588:ABPmer (2005). Tees Maintenance Dredging Baseline Document. Report R.1149.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:588:Central Dredging Association (CEDA) (2011). Underwater sound in relation to dredging. Position Paper - 7

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:588:November 2011. Available at URL: http://www.dredging.org/documents/ceda/downloads/2011-

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:591:Halcrow (1991). Tees Estuary Dredging Review. Report for Tees and Hartlepool Port Authority.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:592:HR Wallingford (1992). Tees and Hartlepool Port Authority. Review of Dredging. EX 2580.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:593:sediment plumes arising from dredging. Construction Industry Research and Information Association

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:593:Jones, D. and Marten, K. (2016). Dredging sound levels, numerical modelling and EIA. Maritime Solutions

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:597:Pirotta, E., Laesser, B. E., Hardaker, A., Riddoch, N., Marcoux, M., and Lusseau, D. (2013). Dredging

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:597:(2011). Measurement of underwater noise arising from marine aggregate dredging operations. Marine

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:597:Royal Haskoning (2007a). Tees Maintenance Dredging Baseline Document. May 2007.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:598:Royal HaskoningDHV (2017a). Tees Maintenance Dredging Annual Review 2016.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:598:Royal HaskoningDHV (2018). Tees Maintenance Dredging Annual Review 2017.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:598:Royal HaskoningDHV (2019a). Tees Maintenance Dredging Annual Review 2018.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:598:Royal HaskoningDHV (2020a). Tees Maintenance Dredging Annual Review 2019.

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:599:(2011). The measurement of underwater noise radiated by dredging vessels during aggregate extraction

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:600:F. (2014). A review of impacts of marine dredging activities on marine mammals. – ICES Journal of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:600:WODA (2013). Technical Guidance on: Underwater Sound in Relation to Dredging. World Organisation of

MLA_2020_00506-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:600:Dredging Associations.

MLA_2020_00506-20230224_NEIFCA_Comments_MMO_Response_v1.pdf:1: published its findings on the shellfish mortality and determined that dredging

MLA_2020_00506-20230224_NEIFCA_Comments_MMO_Response_v1.pdf:1: is not a cause. It is very unlikely that maintenance dredging was the cause. It

MLA_2020_00506-20230224_NEIFCA_Comments_MMO_Response_v1.pdf:1: is exceptionally unlikely that capital dredging on the Tees caused the crab

MLA_2020_00506-Marine Coordinate Schedules-55.pdf:2:Tees Dock turning circle - dredge

MLA_2020_00506-Marine Coordinate Schedules-55.pdf:4:Channel and berth - dredge and excavation

MLA_2020_00506-Returns-46.pdf:3:Open The dredging activities approved by this licence may not

MLA_2020_00506-Returns-46.pdf:3: dredging works commencing.

MLA_2020_00506-Returns-46.pdf:3: dredge campaign

MLA_2020_00506-Returns-46.pdf:3:Open Open Pre and post bathymetric dredge surveys must be

MLA_2020_00506-Returns-46.pdf:3: R9.2 Within 4 weeks of calculation within 4 weeks of completion of each dredge

MLA_2020_00506-Returns-46.pdf:3: dredge campaign

MLA_2020_00506-Returns-46.pdf:3: dredge campaign

MLA_2020_00506-Returns-46.pdf:5: dredging campaign

MLA_2020_00506-Returns-46.pdf:5: the proposed start date of capital dredging and disposal

MLA_2020_00506-Returns-46.pdf:5: date of capital dredging and disposal:

MLA_2020_00506-Returns-46.pdf:5: • Written confirmation that disposal of dredged material

MLA_2020_00506-Returns-46.pdf:5: (meaning that no single phase of the capital dredging

MLA_2020_00506-Returns-46.pdf:5: of dredged material to be disposed would not exceed

MLA_2020_00506-Returns-46.pdf:5: dredging and disposal from South Bank Quay could

MLA_2020_00506-Returns-46.pdf:5: capital dredging and disposal for the two projects could

MLA_2020_00506-Returns-46.pdf:5: should it be apparent that the dredging and disposal

MLA_2020_00506-Returns-46.pdf:5: (aggregated) quantity of dredged material to be disposed

MLA_2020_00506-Returns-46.pdf:5: of dredged material.

MLA_2020_00506-Returns-46.pdf:6:MLA/2020/00506/R13 In advance of July of any Dredging permission

MLA_2020_00506-Returns-46.pdf:6:Open No dredging not covered under statutory harbour

MLA_2020_00506-Returns-46.pdf:6: dredge campaign is taking place at this time. No other

MLA_2020_00506-Returns-46.pdf:6: dredging will take place on the River Tees during this

MLA_2020_00506-Returns-46.pdf:6: dredging operation during 1st July to 31st August

MLA_2020_00506-Returns-46.pdf:6: prior to the dredging activity, as a minimum, monitored

MLA_2020_00506-Returns-46.pdf:6: every hour during the dredging activity. If a drop of 1m/

MLA_2020_00506-Returns-46.pdf:6: g of dissolved oxygen is observed, than the dredging

MLA_2020_00506-Licence Document (Marine).pdf:5:In summary, the scheme comprises demolition, capital dredging, offshore disposal

MLA_2020_00506-Licence Document (Marine).pdf:5:of dredged material, placement of rock in the berth pocket and construction and

MLA_2020_00506-Licence Document (Marine).pdf:6:Activity 1.1 - Disposal of dredged material from Phase 1

MLA_2020_00506-Licence Document (Marine).pdf:6:Activity type Disposal of dredged material

MLA_2020_00506-Licence Document (Marine).pdf:6:Description Marine sediments to be dredged as part of Phase 1

MLA_2020_00506-Licence Document (Marine).pdf:6: dredged material is anticipated to be disposed of during

MLA_2020_00506-Licence Document (Marine).pdf:6: dredge and

MLA_2020_00506-Licence Document (Marine).pdf:6: dredge and

MLA_2020_00506-Licence Document (Marine).pdf:6: dredge

MLA_2020_00506-Licence Document (Marine).pdf:6:Methodology Dredging will be undertaken using a combination of

MLA_2020_00506-Licence Document (Marine).pdf:6: cutter suction dredger, trailing suction hopper dredger and

MLA_2020_00506-Licence Document (Marine).pdf:6: backhoe dredging. Dredging is proposed to be undertaken

MLA_2020_00506-Licence Document (Marine).pdf:7:Programme of works Dredge and disposal activity will take approximately nine

MLA_2020_00506-Licence Document (Marine).pdf:7: weeks. Dredging to be undertaken 24 hours a day, seven

MLA_2020_00506-Licence Document (Marine).pdf:7:Site 2 - Tees Dock turning circle - dredge

MLA_2020_00506-Licence Document (Marine).pdf:7:Activity 2.1 - Capital dredging of the Tees Dock turning circle

MLA_2020_00506-Licence Document (Marine).pdf:7:Activity type Navigational dredging (capital)

MLA_2020_00506-Licence Document (Marine).pdf:7:Description Capital dredging of the Tees Dock turning circle is required

MLA_2020_00506-Licence Document (Marine).pdf:7: 216,000m3 of material is proposed to be dredged from the

MLA_2020_00506-Licence Document (Marine).pdf:7:Methodology Dredging will be undertaken using a combination of

MLA_2020_00506-Licence Document (Marine).pdf:7: cutter suction dredger, trailing suction hopper dredger and

MLA_2020_00506-Licence Document (Marine).pdf:7: backhoe dredging. Dredging is proposed to be undertaken

MLA_2020_00506-Licence Document (Marine).pdf:7:Programme of works It is anticipated that dredging of the turning circle would

MLA_2020_00506-Licence Document (Marine).pdf:7: take approximately two weeks. Dredging to be undertaken

MLA_2020_00506-Licence Document (Marine).pdf:7:Site 3 - Channel and berth - dredge and excavation

MLA_2020_00506-Licence Document (Marine).pdf:7:Activity 3.1 - Capital dredging - channel and berth pocket

MLA_2020_00506-Licence Document (Marine).pdf:7:Activity type Navigational dredging (capital)

MLA_2020_00506-Licence Document (Marine).pdf:7:Description Capital dredging within parts of the existing navigation

MLA_2020_00506-Licence Document (Marine).pdf:7: maintenance dredging to create a berth pocket. The total

MLA_2020_00506-Licence Document (Marine).pdf:7: dredge volume for marine sediments in Phase 1 (excluding

MLA_2020_00506-Licence Document (Marine).pdf:7: included as a separate activity) will be dredged to a

MLA_2020_00506-Licence Document (Marine).pdf:7: be dredged to 15.9m bCD, whilst all other areas are to be

MLA_2020_00506-Licence Document (Marine).pdf:7: dredged to 11.5m bCD.

MLA_2020_00506-Licence Document (Marine).pdf:8:Methodology Dredging will be undertaken using a combination of cutter

MLA_2020_00506-Licence Document (Marine).pdf:8: suction dredger, Trailing Suction Hopper Dredger (TSHD)

MLA_2020_00506-Licence Document (Marine).pdf:8: and a backhoe dredger. Approximately, up to three barges

MLA_2020_00506-Licence Document (Marine).pdf:8: dredged using the backhoe dredger or cutter suction

MLA_2020_00506-Licence Document (Marine).pdf:8: dredger to the offshore disposal site. The methodology for

MLA_2020_00506-Licence Document (Marine).pdf:8:Programme of works Dredge and disposal activity will take approximately nine

MLA_2020_00506-Licence Document (Marine).pdf:8: weeks. Dredging to be undertaken 24 hours a day, seven

MLA_2020_00506-Licence Document (Marine).pdf:9: berth pocket will need to dredged to a greater depth initially

MLA_2020_00506-Licence Document (Marine).pdf:10: the berth pocket dredge. It is anticipated that installation

MLA_2020_00506-Licence Document (Marine).pdf:10: involved in the dredging of material not suitable for

MLA_2020_00506-Licence Document (Marine).pdf:11: Once dredging of material not suitable for disposal at sea

MLA_2020_00506-Licence Document (Marine).pdf:11: of the dredging of exclusion zone.

MLA_2020_00506-Licence Document (Marine).pdf:13:Where a licensed activity comprises dredging or the disposal of dredged material,

MLA_2020_00506-Licence Document (Marine).pdf:13:the total quantity of material authorised to be dredged or disposed of in any given

MLA_2020_00506-Licence Document (Marine).pdf:13:For each time period, the actual quantity dredged or disposed of shall be calculated by

MLA_2020_00506-Licence Document (Marine).pdf:13:adding the quantity of material dredged or disposed of during that time period under

MLA_2020_00506-Licence Document (Marine).pdf:13:this version of this licence to that dredged or disposed of under any previous version

MLA_2020_00506-Licence Document (Marine).pdf:14:5.2.4 An archaeological protocol must be submitted to a the MMO 6 weeks prior to commencement of dredging activities, as

MLA_2020_00506-Licence Document (Marine).pdf:14: an archaeological written scheme of investigation (WSI). Dredging works cannot commence until approval is given by

MLA_2020_00506-Licence Document (Marine).pdf:14: To mitigate the potential impacts from dredging.

MLA_2020_00506-Licence Document (Marine).pdf:15:5.2.7 The dredging activities approved by this licence may not commence until such a time as a scheme of monitoring has

MLA_2020_00506-Licence Document (Marine).pdf:15: for written confirmation prior to dredging works commencing.

MLA_2020_00506-Licence Document (Marine).pdf:15: To monitor impacts to water quality during dredging.

MLA_2020_00506-Licence Document (Marine).pdf:16:5.2.8 No dredging not covered under statutory harbour authority powers can be conducted during the period from 1st July

MLA_2020_00506-Licence Document (Marine).pdf:16: been reached that only 1 dredge campaign is taking place at this time. No other dredging will take place on the River

MLA_2020_00506-Licence Document (Marine).pdf:16:5.2.9 If permission is granted by the MMO to undertake dredging operation during 1st July to 31st August (inclusive), dissolved

MLA_2020_00506-Licence Document (Marine).pdf:16: oxygen levels must be monitored prior to the dredging activity, as a minimum, monitored every hour during the dredging

MLA_2020_00506-Licence Document (Marine).pdf:16: activity. If a drop of 1m/g of dissolved oxygen is observed, than the dredging activity must temporarily pause for a period

MLA_2020_00506-Licence Document (Marine).pdf:16:5.2.10 Dredging must be limited to working on one side of the estuary channel at a time.

MLA_2020_00506-Licence Document (Marine).pdf:16: Once the area bounded by Schedule 8 has been dredged, surface grabs for samples within the area adjacent to the

MLA_2020_00506-Licence Document (Marine).pdf:16: dredged area must been taken to ensure there has been no movement of contaminated sediment outside of the area

MLA_2020_00506-Licence Document (Marine).pdf:17: within one week of the completion of any remedial dredging.

MLA_2020_00506-Licence Document (Marine).pdf:17:5.2.12 Pre and post bathymetric dredge surveys must be submitted, together with an interpretation of the difference between

MLA_2020_00506-Licence Document (Marine).pdf:17: the survey results and a volume calculation within 4 weeks of completion of the capital dredge campaign. The turning

MLA_2020_00506-Licence Document (Marine).pdf:17: circle and channel must not be dredged beyond 11.5m BCD. Berth pocket must not be dredged beyond 15.9m BCD.

MLA_2020_00506-Licence Document (Marine).pdf:17: A maximum of 216,000m3 of material to be dredged from the Tees Dock turning circle (Activity 2.1).

MLA_2020_00506-Licence Document (Marine).pdf:17: A maximum of 1,131,000m3 of material to be dredged from the Channel and Berth Pocket (Activity 3.1).

MLA_2020_00506-Licence Document (Marine).pdf:17: the proposed start date of capital dredging and disposal for South Bank Quay and, subject to the outcome of that

MLA_2020_00506-Licence Document (Marine).pdf:17: of capital dredging and disposal:

MLA_2020_00506-Licence Document (Marine).pdf:17: • Written confirmation that disposal of dredged material from the South Bank Quay project will not temporally coincide

MLA_2020_00506-Licence Document (Marine).pdf:17: with that arising from the NGCT project (meaning that no single phase of the capital dredging and disposal for the two

MLA_2020_00506-Licence Document (Marine).pdf:17: • Written confirmation that the total (aggregated) quantity of dredged material to be disposed would not exceed 1.34

MLA_2020_00506-Licence Document (Marine).pdf:17: million m3 per month (the peak monthly volume assessed within the EIA), should it be apparent that the dredging and

MLA_2020_00506-Licence Document (Marine).pdf:18: disposal from South Bank Quay could temporally coincide (meaning that any phase of the capital dredging and disposal

MLA_2020_00506-Licence Document (Marine).pdf:18: dredging and disposal programmes for NGCT and the South Bank Quay project could (i) temporally coincide and (ii) the

MLA_2020_00506-Licence Document (Marine).pdf:18: total (aggregated) quantity of dredged material to be disposed could exceed 1.34 million m3 per month, with a detailed

MLA_2020_00506-Licence Document (Marine).pdf:18: programme of environmental monitoring to verify the predicted cumulative environmental impacts of disposal of dredged

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:1: • An additional 29,000m3 of material to be dredged from the Tees Dock turning circle;

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:1: • An additional 416,000m3 of material to be dredged from the channel and berth pocket; and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:1: the berth pocket and the licensed activities relating to dredging to account for dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:1:The Phase 1 marine licence relates to dredging of laying of rock blanket within the downstream section

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:1:of the berth pocket and channel (450m), together with dredging within the Tees Dock turning circle and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:1:relates to dredging of laying of rock blanket within the upstream section of the berth pocket and channel

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:1:The proposed change in dredge and disposal volumes from the current version of the marine licence

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:1:Table 1.1 Change in dredge and disposal volumes and material type breakdown requested as part of

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:1: Dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:2:The additional material to be dredged and disposed of is required due to a change in the approach of

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:2: disposed to land, or otherwise dredged then disposed to land or dredged then disposed to sea;

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:2: in relation to the new quay wall and dredging areas.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:2: • Addition of a new dredger type within the dredging methodology, to allow for the use of a cutter

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:2: suction dredger (CSD);

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:2: • Change in the dredge areas and descriptions to account for dredging tolerances; and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:2: Wharf where dredged material unsuitable for disposal at sea would be transferred from barge to

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:2:the changes in dredging type and dredge and disposal volumes associated with dredging of the OSPAR

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:3: • Capital dredge of Tees Dock • Capital dredge of the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:3: • Capital dredge of the channel and berth pocket;

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:3: Marine licence application downstream section of the • Disposal of dredged material

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:3: • Disposal of dredged material • Placement of rock blanket

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:3: • An additional dredger type

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:3: within the dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:3: • To correct dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:3: tolerances within the dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:3: • Increase of dredging volumes

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:3: associated with the dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:3: associated with the dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:3: • To correct dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:3: tolerances within the dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:3:re-used on site or disposed to land. MLV2 is applying for 416,000m3 of OSPAR material to be dredged, a

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:4:dredge and disposal volumes are required due to the change in approach from excavating landside

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:4:material (and associated disposal to land) to dredging the OSPAR material (and associated disposal to

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:4:Whilst the EIA Report assessed as worst case scenario based on programme, dredging and disposal

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:4: • The dredging and disposal (SEAL) team;

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:4:EIA Report was submitted, the proposed approach to delivering the scheme was to dredge and dispose

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:4:to land. Dredged material not considered suitable for disposal at sea is recovered to land. This was the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:4:At the time of writing the EIA Report, given uncertainty on phasing, the EIA assumed that the dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:4:case scenario. The total volume of dredged material for the two phases assessed within the EIA is

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:5:The scope of the original marine licence application therefore did not include for dredging or disposal of

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:5:is applying to vary the current marine licence to enable dredging and disposal of the proportion of

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:5:case scenario and there will be no temporal overlap between dredging activities associated with Phase 1

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:5:note solely relate to the dredge and disposal volumes associated with Phase 1 of the scheme.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:5:dredged material to sea. This section provides a review of the EIA Report and considers the effects

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:9:shellfish from changes to the dredge and disposal volumes associated with MLV2. In response to Cefas’

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:9: • Changes in marine water quality due to dredging activity;

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:9:4.2.1 Changes in marine water quality due to dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:9:dredging campaign. The mitigation proposed within the EIA Report, which forms a condition on the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:9:current version of the marine licence, is to limit dredging activities to one side of the river at any one time.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:9:This would confine water quality effects to half of the river channel during dredging operations. By

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:9:As the same condition (limiting dredging activities to one side of the river channel at any time) is

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:9:migratory periods. The OSPAR material to be dredged also originates from the existing bank of the river,

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:9:It is therefore considered that, through adhering to the current marine licence condition limiting dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:9:quality arising from dredging activities will be no greater than that assessed in the original EIA Report

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:10: Fish and due to dredging activity

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:11:As noted within the EIA Report, the majority of the dredging footprint is located within the subtidal zone

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:11:with the exception of the dredging and excavation required in front of the new quay wall to create a berth

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:12:approximately 1km downstream of the scheme. However, there is some spatial overlap in the dredge

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:13:receptors from changes to the dredge and disposal volumes associated with MLV2. In response to

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:13: • Direct loss of habitat and species due to demolition of existing structures and dredging;

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:14: • Effects of increased suspended sediment concentrations during dredging; and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:14: • Effects of smothering following dredging.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:14: and dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:14:dredging footprint. Whilst at the time of writing the original EIA Report the information regarding the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:14:In terms of habitat loss as a result of dredging, the EIA Report identifies that the dredge footprint is within

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:14:mudflat was predicted to occur, given that the dredging activities are concentrated within the footprint of

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:14:pocket, where capital dredging and laying of a rock blanket is being undertaken, and that some Priority

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:14:Habitat mudflat will be lost as a result of the dredging and excavation works. However, the confidence in

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:14:habitat due to the demolition of existing structures and capital dredging activities. No mitigation is

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:15:5.2.2 Effects of increased suspended sediment concentrations during dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:15:the dredging vessel (based on the use of a trailing suction hopper dredger (TSHD) or backhoe). The

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:15:cases, the modelling indicates that sediments suspended as a result of dredging activities is predicted to

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:15:form a narrow plume within the river channel, with plumes associated with dredging of the berthing

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:15:submitted in support of MLV1 (Royal HaskoningDHV, 2022) accounted for the change in dredge type

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:15:from THSD to cutter suction dredger (CSD). The sediment loss rate (‘S-factor’) for CSD is taken as 6

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:15:removed via land-based excavators and disposed to land, and given that the dredge volumes requested

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:15:5.2.3 Effects of smothering following dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:15:benthic receptors due to deposition of suspended sediments caused by dredging and disposal activities.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:15:excavators, the volume of suspended sediment associated with the dredging of this material is expected

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:16:sediment dispersion associated with the dredging for Phase 1 and Phase 2 together. This is supported

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:16:considered removal of the landside soil within the proposed dredging campaign and concluded that ‘both

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:16:considered that the effect of smothering from dredging activities from the changes requested in MLV2

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:16:Whilst there will be an increase in volume of dredged material to be disposed of at sea, a review of

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:16:Whilst the total volume of dredged material to be disposed offshore and the frequency of disposal events

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:17:effects associated with dredging and disposal upon fish and shellfish and benthic receptors as a result of

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:17: Fish and dredging activity

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:18:CIRIA (2000). Scoping the assessment of sediment plumes from dredging (C547).

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:20: BERTH POCKET DREDGING AREA BERTH POCKET DREDGING AREA

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:20: CHANNEL DREDGING AREA CHANNEL DREDGING AREA

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:20: DREDGING AREA

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:22:be dredged and disposed of to sea and that a full suite of analyses, including

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:26:The South Bank Quay development consists of demolition, capital dredging, offshore

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:26:disposal of dredged material, placement of rock in the berth pocket and construction

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:26:The applicant now wishes to change the capital dredging methodology from a trailing

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:26:suction hopper dredger (TSHD) and backhoe dredger to a cutter suction dredger.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:26:quays; dredging of the River Tees to provide a berthing pocket, deepened approach

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:28:dredging method) will reduce the amount of time spent dredging, which is expected

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:28:disturbed by the dredging is estimated to be 32.5ha and 2.5ha of intertidal area will

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:28:the dredging operation to one side of the river at a time. This will reduce both the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:28:sediment during dredging will result in risks of physiological effects on fish from

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:28:contaminant release. The change in dredging technique being proposed by the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:28:applicant will result in a reduced amount of time spent dredging, which will further

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:33:3.4 Dredging Methodology and Schedule 6

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:33:3.4.1 Dredging Method 7

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:33:3.4.2 Dredging Schedule 8

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:33:3.5 CSD Dredging and Disposal Cycle 10

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:33:3.6.2 River Dredging 12

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:33:Table 3-1: Soil Types to be dredged 5

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:33:Table 3-2: Particle size distribution for dredged soil types 5

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:33:Table 3-3: Dredging Schedule Overview 8

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:33:Figure 1-2 Footprint of dredging assessed in the EIA report (grey areas for Phases 1 and 2) and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:33:Figure 3-1 Dredging Layout 6

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:33:Figure 3-2 South Bank Wharf Dredge Site and Tees Bay C Offshore Disposal Site 7

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:34:Figure 3-3 Sediment release schedule for dredger 9

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:34:dredging activities under the previously assessed project [Phases 1 and 2, reproduced from EIA

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:34:from dredging activities under the previously assessed project [Phases 1 and 2, reproduced from

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:34:dredging activities under the proposed project variation to Phase 1 updated modelling 14

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:34:from dredging activities under the proposed project variation to Phase 1 updated modelling 15

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:34:Figure 3-9 Maximum river bed thickness change due to sediment deposition arising from dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:34:dredging activities under the proposed project variation to Phase 1 updated modelling 17

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:35: movement of suspended sediment from the proposed dredging and disposal activities by coupling with

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:35: dredging and disposal schedule.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:36:condition that prohibits dredging in any year from 1st July to 31st August (inclusive) (Condition 5.2.8):

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:36: • Change in dredger type from a combination of trailer suction hooper dredger (TSHD) and backhoe

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:36: dredger (BH) to use of a cutter suction dredger (CSD) by the appointed Contractor – this has the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:36: effect of increasing the production rate of dredging (and associated disposal) and changing the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:36: potential spill rate of sediment from the dredging process;

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:36: • Increasing capacity of the vessel to be used for disposal of dredged material at the offshore disposal

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:36: • Incorporating into the assessments a better definition of the material type to be dredged based on

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:36: • Incorporating very slight change in the extent of the dredging within the turning area, from a semi-

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:37: • Inclusion of currently landside soils (i.e. soils within the riverbank) within the proposed dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:37:reducing the total volume of material to be dredged and disposed from 1.8 million m3 (Phase 1 and 2 total)

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:37:by dredging (Figure 1-2). It should be noted that STDL is still planning on constructing Phase 2 of the South

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:37:Figure 1-2 Footprint of dredging assessed in the EIA report (grey areas for Phases 1 and 2) and in updated assessments (red

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:38: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning area and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:38: dredging.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:38: of sediment. In the main channel the deposition will require periodic dredging to maintain the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:38: • There is no measurable change caused by the capital dredging at the Tees Dock turning area.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:38:so any such effects from dredging on the tidal regime during Phase 1 would be lesser than those previously

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:38:assessed. Also the very slight change in extent of dredging within the turning area from a semi-circular to

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:39:transport effects of the proposed dredging of the channel and the berth pocket in front of the new quay wall,

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:39:Available soil data indicates that it is expected that the dredging material consists of different soil types. A

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:39:summary of the expected dredging soil types based on the ground investigation data (Definitive Feasibility

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:39:between soft and hard material because it is expected to influence the choice of dredging equipment to be

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:39:Table 3-1: Soil Types to be dredged

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:39:Table 3-2: Particle size distribution for dredged soil types

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:39:The dredging layout for Phase 1 is shown in Figure 3-1. The river channel in front of the South Bank Wharf

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:39:as well as part of the Tees Dock turning area will be dredged to a level of -11mCD. The berth pocket in front

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:39:of the new quay has a design bed level of -13.6mCD, but the dredge volumes considered in the dispersion

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:40:model include an extra two metres of dredge material down to a bed level of -15.6mCD to allow for a rock

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:40:dredging schedule. Due to the uncertainty of the time when the dredging will take place, the worst scenario

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:40: Figure 3-1 Dredging Layout

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:40:3.4 Dredging Methodology and Schedule

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:40:The dredging method, dredging schedule and details of the sediment release settings for the sediment

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:41:3.4.1 Dredging Method

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:41:The sediment will be dredged using a Cutter Suction Dredger (CSD).

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:41:All dredged material will be taken to the Tees Bay C offshore disposal site which is approximately 18km (or

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:41: Figure 3-2 South Bank Wharf Dredge Site and Tees Bay C Offshore Disposal Site

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:42:3.4.2 Dredging Schedule

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:42:The dredging schedule and quantity for the CSD are described in Table 3-3. The dredging will begin with

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:42:A total of 1.2 million m3 of bed material will be dredged over a period of nine weeks. The simulation covers

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:42:the entire dredging period and the movement of dredger and transport barges were tracked for the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:42:processes of dredging, sailing, disposal and downtime for bad weather, refuelling, and equipment

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:42:maintenance. Figure 3-3 shows the sediment release schedules for the dredger at the South Bank Quay

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:42:site and Tees Dock turning area (i.e. the Phase 1 dredge footprint), whilst and Figure 3-4 shows the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:42:The disposal schedule will follow the same pattern as the dredging schedule in that the barge filled by the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:42:Table 3-3: Dredging Schedule Overview

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:42:Loading (Dredge) time

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:42:Total dredging cycle time

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:42:Dredging volume (m3) 305,369 460,054 147,136 106,304 142,465 73,171

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:42:Dredging time (weeks) 2.3 3.1 1.1 0.7 1.1 0.5

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:43: Figure 3-3 Sediment release schedule for dredger

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:44:The following assumptions have been made for the simulation of sediment plumes arising from dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:44:The CSD will operate at full capacity, with two barges being deployed for transport of the dredged soil

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:44:material to the disposal site. The dredger will release material from along a single line along each of the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:44:is a conservative approach for worst case plume effect. The dredger will actually move around the dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:44:3.5 CSD Dredging and Disposal Cycle

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:44:This section describes the CSD dredge and disposal cycle for the two different soil types. The sediment

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:44:release rate, sediment loss rate and discharge sediment rate are the same for each of the dredge areas,

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:44:namely berth pocket, channel and turning area. They differ in dredge and disposal duration due to the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:44:The CSD dredger will dredge the soft surface layer material above a level of -2mCD by operating

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:44:site. The dredger disperses sediment into the water column at a sediment release rate of 1.11 kg/s. The

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:45:The CSD will dredge for 50 minutes to load one barge, the barge will then sail for 90 minutes to the disposal

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:45:minutes in total. The total time of one dredge and disposal cycle takes 270 minutes.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:45:The CSD dredge and disposal cycle for the soft material will take 2.29 weeks for 305,369 m3 in the berth,

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:45:The CSD dredger will dredge the hard material below a level of -2mCD by operating continuously filling a

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:45:barge, with two barges being in operation sailing back and forth to the offshore disposal site. The dredger

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:45:The CSD will dredge for 160 minutes to load one barge, the barge will then sail for 90 minutes to the disposal

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:45:minutes in total. The total time of one dredge and disposal cycle takes 380 minutes.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:45:The CSD dredge and disposal cycle for the hard material will take 3.07 weeks for 460,054 m3 in the berth,

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:45:discussed in turn for the river dredging and offshore disposal activities. Note that all modelling plots in the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:45:any stage of the river dredging or offshore disposal operations during the relevant phase of the dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:45:the nine weeks of dredging or disposal activities (in some areas this will be on a single occasion, in other

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:46:3.6.2 River Dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:46:The combined maximum ‘zone of influence’ from all stages of the dredging activities associated with the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:46:only of the dredging) in Error! Reference source not found. (near-bed layer) and Figure 3-8 (near-surface

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:46:are generally slightly lower than near-bed effects, and during the dredging, all plume effects are confined to

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:46:dredging of the berthing pocket and river channel in the vicinity of the new quay are confined to the right

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:46:bank (south of centre line) portion of the channel’s width, whilst all plumes associated with dredging of the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:47: Figure 3-5 Maximum enhanced suspended sediment concentrations (near-bed layer) arising from dredging activities under the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:48:Figure 3-6 Maximum enhanced suspended sediment concentrations (near-surface layer)arising from dredging activities under the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:49:material being dredged, the shorter overall dredging programme, the smaller area within which dredging will

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:49:and BH dredgers.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:49:Figure 3-7 Maximum enhanced suspended sediment concentrations (near-bed layer) arising from dredging activities under the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:50: Figure 3-8 Maximum enhanced suspended sediment concentrations (near-surface layer) arising from dredging activities under the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:51:bed thickness caused by the deposition of sediment from the plumes created by river dredging. It can be

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:51:seen that much of the sediment falls to the bed within the dredged areas (from where it will be re-dredged

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:51: Figure 3-9 Maximum river bed thickness change due to sediment deposition arising from dredging activities under the previously

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:52:to within the footprint of the dredged areas, from where the re-deposited sediment will be dredged and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:52: Figure 3-10 Maximum river bed thickness change due to sediment deposition arising from dredging activities under the proposed

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:52:licensed for the disposal of dredged sediment and is routinely monitored as part of a national programme.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:52:associated with the dredging programme has been plotted in Figure 3-11 for the near-bed layer of the water

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:54:with the results for the river dredging, the updated modelling results show that both the magnitude and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:59:The river dredging and offshore disposal activities associated with the proposed project variations will both

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:59:combined, so any such effects from dredging on the tidal regime during Phase 1 would be lesser than those

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1142-MLA.2020.00506.2 South Bank Quay MLV2 Appraisal of Environmental Effects.pdf:59:previously assessed. Also the very slight change in extent of dredging within the turning area from a semi-

MLA_2020_00506-Returns.pdf:1: hours before the Dredging

MLA_2020_00506-Returns.pdf:1: commencement of the Owner: Foyle and Marine Dredging -1 no. Safety/

MLA_2020_00506-Returns.pdf:1: A Vessel Owner: Foyle and Marine Dredging -

MLA_2020_00506-Returns.pdf:1: Vessel Owner: Foyle and Marine Dredging

MLA_2020_00506-Returns.pdf:2: dredging only, rather than 'any works'. Please

MLA_2020_00506-Returns.pdf:3:Rejected Rejected The dredging activities approved by this licence may not

MLA_2020_00506-Returns.pdf:3: dredging works commencing.

MLA_2020_00506-Returns.pdf:3: dredge campaign

MLA_2020_00506-Returns.pdf:3:Open Open Pre and post bathymetric dredge surveys must be

MLA_2020_00506-Returns.pdf:3: completion of each dredge campaign. The turning circle and channel must

MLA_2020_00506-Returns.pdf:3: dredge campaign not be dredged beyond 11.5m BCD. Berth pocket must

MLA_2020_00506-Returns.pdf:3: not be dredged beyond 15.9m BCD.A maximum of

MLA_2020_00506-Returns.pdf:3: Subreference Deadline 216,000m3 of material to be dredged from the Tees Dock

MLA_2020_00506-Returns.pdf:3: completion of each of material to be dredged from the Channel and Berth

MLA_2020_00506-Returns.pdf:3: dredge campaign

MLA_2020_00506-Returns.pdf:4: dredging campaign 5.2.13 of the marine licence for Phase 1 of the

MLA_2020_00506-Returns.pdf:4: the proposed start date of capital dredging and disposal

MLA_2020_00506-Returns.pdf:4: start date of capital dredging and disposal: • Written

MLA_2020_00506-Returns.pdf:4: confirmation that disposal of dredged material from the

MLA_2020_00506-Returns.pdf:4: no single phase of the capital dredging and disposal

MLA_2020_00506-Returns.pdf:4: of dredged material to be disposed would not exceed

MLA_2020_00506-Returns.pdf:4: dredging and disposal from South Bank Quay could

MLA_2020_00506-Returns.pdf:4: capital dredging and disposal for the two projects could

MLA_2020_00506-Returns.pdf:4: offshore disposal should it be apparent that the dredging

MLA_2020_00506-Returns.pdf:4: (aggregated) quantity of dredged material to be disposed

MLA_2020_00506-Returns.pdf:4: of dredged material.

MLA_2020_00506-Returns.pdf:5:MLA/2020/00506/R13 In advance of July of any Dredging permission (17/02/2022) on and in response to your email

MLA_2020_00506-Returns.pdf:5:Rejected Last Received No dredging not covered under statutory harbour

MLA_2020_00506-Returns.pdf:5: maintenance dredging to proceed during the

MLA_2020_00506-Returns.pdf:5: dredge campaign is taking place at this time. No other

MLA_2020_00506-Returns.pdf:5: dredging will take place on the River Tees during this

MLA_2020_00506-Returns.pdf:5: dredging operation during 1st July to 31st August

MLA_2020_00506-Returns.pdf:5: prior to the dredging activity, as a minimum, monitored

MLA_2020_00506-Returns.pdf:5: every hour during the dredging activity. If a drop of 1m/

MLA_2020_00506-Returns.pdf:5: g of dissolved oxygen is observed, than the dredging

MLA_2020_00506-Returns.pdf:6: remedial dredging

MLA_2020_00506-Returns.pdf:6: and consultation on by Schedule 8 has been dredged, surface grabs for

MLA_2020_00506-Returns.pdf:6: updated Sampling samples within the area adjacent to the dredged area

MLA_2020_00506-Returns.pdf:6: remedial dredging.The exclusion zone may be reduced

MLA_2020_00506-Returns.pdf:7: commencement of the Dredging 2 no. tugs - Vessel names: Seal Carr

MLA_2020_00506-Returns.pdf:7: and Marine Dredging 1 no. Backhoe dredger -

MLA_2020_00506-Returns.pdf:7: Vessel owner: Foyle and Marine Dredging 1 no.

MLA_2020_00506-Returns.pdf:7: Foyle and Marine Dredging

MLA_2020_00506-Returns.pdf:7: R16.2 No less than 24 in the upcoming dredge campaign due to

MLA_2020_00506-Returns.pdf:7: R16.3 No less than 24 dredging activities in January 2023: 1 no. hopper

MLA_2020_00506-Returns.pdf:7: R16.4 No less than 24 in remedial dredging activities in January 2023:

MLA_2020_00506-Returns.pdf:8:R16.5 No less than 24 in dredging activities commencing on 30/01/2023:

MLA_2020_00506-Returns.pdf:8: licenced activity Suction Dredger, self-propelled - IMO Number:

MLA_2020_00506-Returns.pdf:9:MLA/2020/00506/R17 R17.1 No less than 24 Agents / contractors / sub-contractors dredging activities commencing on 30/01/2023.

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:1: To carry out any form of dredging within the UK marine licensing area (whether or not involving the removal of any material from

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:1:Description of The proposed scheme comprises demolition, capital dredging, offshore disposal of dredged material, placement of rock in the

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:2: • Capital dredging of approximately 1,800,000m3 of marine sediments with offshore disposal into the Tees Bay C disposal

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:2: site. It is proposed that dredging is undertaken using a trailing suction hopper dredger (TSHD) and a backhoe dredger.

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:5: - Construction of port and harbour structures/capital dredging.

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:5: Teesmouth and Cleveland Coast SPA/ RAMSAR: Construction of port and harbour structures/Capital Dredging

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:6:Visual disturbance dredging, movements of large commercial vessels and land-side

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:6: waterbirds from dredging activities.

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:7: • Intertidal biogenic reef: mussel beds No other supporting habitats were identified. The proposed dredge

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:7: created as part of the proposed dredge, no direct or indirect impact

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:7: • Redshank (NB) dredging, movements of large commercial vessels and land-side

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:8: including regular maintenance dredging, movements of large

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:8:suspended solids by the proposed dredge. The occurrence of almost daily

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:8: • Sandwich Tern (NB) maintenance dredging throughout the estuary suggests that

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:8: • Common Tern (B) suspended sediments during dredging represents a very localised,

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:8: dredge.

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:9: effects on the baseline conditions. Furthermore, the dredging

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:9: • Wigeon requiring ongoing maintenance dredging (but no change in the

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:9: • Gadwall overall maintenance dredging strategy for the Tees estuary as a

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:10: Furthermore, the dredging footprint in the main channel does not

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:11: With regard to water column –maintenance dredging routinely

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:11: application reports that the area has previously been dredged to

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:12: ongoing maintenance dredging (but no change in the overall

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:12: maintenance dredging strategy for the Tees estuary as a whole).

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:13: With regard to water column- the capital dredge will cause a

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:14:Removal of non- Bird Species. No There is a potential for the construction/dredge to impact prey

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:14:target species species of these bird species. Maintenance dredging is routinely

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:15: ongoing maintenance dredging (but no change in the overall

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:15: maintenance dredging strategy for the Tees estuary as a whole).

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:15: • Sandwich Tern (NB) maintenance dredging, movements of large commercial vessels

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:16: dredging, movements of large commercial vessels and land-side

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:16: to ongoing activities within the estuary (i.e. maintenance dredging

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:17: ongoing activities within the estuary (i.e. maintenance dredging

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:17:current) changes, caused by the proposed dredge. The occurrence of almost daily

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:17: maintenance dredging throughout the estuary suggests that

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:18: • Common Tern (B) suspended sediments during dredging represents a very localised,

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:18:Waterbird assemblage (NB) completion of the dredge. No effect on overall population level or

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:18: requiring ongoing maintenance dredging (but no change in the

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:18: overall maintenance dredging strategy for the Tees estuary as a

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:19:L/2017/00012/3 - Able Capital/Maintenance dredging (expires 01/03/2026) Yes – within the pSPA/partially within the SPA. The

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:19:MLA/2020/00073 Alternative use of dredged material This is in conjunction with this application, as dredge

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:20: dredged sediment will be reused as part of this project. considered further here.

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:20:Hartlepool Approach Capital dredge to deepen, realign, widen and extend the length of Should the Hartlepool channel scheme coincide with the

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:20:Channel the approach channel. In addition to the proposed dredge (and proposed scheme, in-combination effects to the interest

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:20: associated disposal of dredged material), PDT is proposing to features of the SPA / Ramsar site could occur. The

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:21: following the proposed dredge.

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:21:Tees navigational channel The Tees Channel Dredge project involves a proposed Given the frequency, duration and long-term nature of

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:21: maintenance dredging within the Tees, this activity is

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:21: deepening could coincide with the capital dredging

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:21:Northern Gateway Container The NGCT scheme comprises capital dredging up to 4.8 million Should the NGCT scheme coincide with the proposed

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:21: channel, disposal of dredged material offshore, construction of a the SPA / Ramsar site could occur. The relevant

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:23: Visual disturbance Common redshank, (Non-Breeding) and dredging and disposal has “acceptable” limits for redshank and knot at

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:25:Changes in Sandwich tern, (Non-Breeding- Yes The capital dredging of the river Yes-

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:25:clarity) form. The plume effects arising form of dredging along the axis of the river

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:25: from the river dredging are rather than across it to ensure that, at any

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:25:transport • Shoveler point of dredging activity, followed

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:25: • Sanderling extent and reduction in • Dredging along the axis of the

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:25: hours. Since the dredging is a

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:25: Intertidal sand and muddy sand near-continuous operation, the capital dredging operations.

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:26: on the dredging activities

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:26:L/2017/00012/3 - Able Seaton Port Capital/Maintenance dredging (expires 01/03/2026) Yes – within the SPA. The maintenance dredge covers

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:26:7,8,9 and Terrc Basin) Above water noise Dredging in this area is longstanding. These works take

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:26:MLA/2020/00073 Alternative use of dredged material This is in conjunction with this application, as dredge

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:26: as the dredged sediment will be reused as part of this works.

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:27: proposed dredge (and associated disposal of dredged reductions, which have the potential to reduce the

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:27: Harbour. The underwater retaining wall is required to The effects of capital dredging on subtidal habitat are

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:27: undermined following the proposed dredge. conditions expected upon completion. The Hartlepool

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:28:Northern Gateway Container Terminal The NGCT scheme comprises capital dredging up to 4.8 Should the NGCT scheme coincide with the proposed

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:28: the approach channel, disposal of dredged material the SPA / Ramsar site could occur in the form of

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:28: The NGCT scheme comprises capital dredging up to 4.8 .

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:28: the approach channel, disposal of dredged material

MLA_2020_00506-MLA202000506 and MLA202000507 Final HRA .pdf:29: • Dredging along the axis of the River Tees will be undertaken to ensure sediment plumes are only occurring in half of the river during capital dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:1:to the maximum dredge depth for all determinands. Due to the lead in time to PBDE sampling at the time

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:2: sediment sampling plan associated with proposed change in dredge footprint” was submitted to

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:2:The MMO notes that the ES splits the dredge volumes into Phase 1 and Phase 2, as shown in Table 3.2.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:2:It is unclear whether the total dredge volume now exceeds scope or not. As this application is amending

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:2:The total dredge volume does now exceed the total dredge volume assessed within the ES. However, the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:2:material to be dredged was always going to be removed but was originally intended to be excavated to

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:2:be dredged and disposed of offshore.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:2:impacts to marine water and sediment quality. As the new dredge volume for Phase 1 is less than the total

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:2:increase in dredge and disposal volume required for Phase 1 was undertaken to support the marine licence

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:2:MMO comment: The MMO note that the dredge volumes considered in the dispersion model submitted for

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:2:marine licence variation 1 include an extra two metres of dredge material down to a bed level of -15.6mCD.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:2:Marine licence variation 2 is to increase the dredge level in the berth pocket to -15.9mCD. The MMO note

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:2:MLV2.” Please clarify how the change in dredge depth has been considered when reassessing the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:3:The increase in maximum dredge depth incorporates the requirements to incorporate increased tolerances

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:3:dredge depth, but rather an acknowledgement that the dredging may influence deeper depths due to the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1139 South Bank Quay Phase 1 FIR 18 Response.pdf:3:increased tolerances required. The target dredge depth has not been varied as part of this variation and

MLA_2020_00506-MLA_2020_00506_2_RFI 18.pdf:1:Table 1. Existing and proposed dredge and disposal volumes/weights, adapted from document 4.

MLA_2020_00506-MLA_2020_00506_2_RFI 18.pdf:1: Dredging

MLA_2020_00506-MLA_2020_00506_2_RFI 18.pdf:1:respective target dredge depths. Note that here, “Depth” refers to the sampling depth and not the

MLA_2020_00506-MLA_2020_00506_2_RFI 18.pdf:2: 3. The MMO notes that the ES splits the dredge volumes into Phase 1 and Phase 2, as shown in

MLA_2020_00506-MLA_2020_00506_2_RFI 18.pdf:2: Table 3.2. It is unclear whether the total dredge volume now exceeds scope or not. As this

MLA_2020_00506-MLA_2020_00506_2_RFI 18.pdf:2: 4. The MMO note that the dredge volumes considered in the dispersion model submitted for

MLA_2020_00506-MLA_2020_00506_2_RFI 18.pdf:2: marine licence variation 1 include an extra two metres of dredge material down to a bed

MLA_2020_00506-MLA_2020_00506_2_RFI 18.pdf:2: level of -15.6mCD. Marine licence variation 2 is to increase the dredge level in the berth

MLA_2020_00506-MLA_2020_00506_2_RFI 18.pdf:2: how the change in dredge depth has been considered when reassessing the hydrodynamic

MLA_2020_00506-Cefas RFI South Bank Phase 1 & 2-15.pdf:1:although it will be sustained for as long as dredging is ongoing (a period of

MLA_2020_00506-Cefas RFI South Bank Phase 1 & 2-15.pdf:1:proposed dredging works be clarified?

MLA_2020_00506-Cefas RFI South Bank Phase 1 & 2-15.pdf:1: from the cumulative disposal of the entire dredge load. This should be

MLA_2020_00506-Cefas RFI South Bank Phase 1 & 2-15.pdf:1: velocity reduction impact the future dredge requirement in this area?

MLA_2020_00506-Cefas RFI South Bank Phase 1 & 2-15.pdf:1: and it appears that this may be up to 50% reduction? Dredging of the

MLA_2020_00506-Cefas RFI South Bank Phase 1 & 2-15.pdf:1: the present. The dredged pocket and area of affected flows appears to

MLA_2020_00506-Cefas RFI South Bank Phase 1 & 2-15.pdf:1:  Revised modelling of the plume that takes into account other dredging

MLA_2020_00506-Cefas RFI South Bank Phase 1 & 2-15.pdf:1:  Clarification on the proposed exact times (i.e. months) of dredging works

MLA_2020_00506-Cefas RFI South Bank Phase 1 & 2-15.pdf:1:  Recommend that the you consider the feasibility of undertaking dredging

MLA_2020_00506-Cefas RFI South Bank Phase 1 & 2-15.pdf:2: that includes the dredging proposed for NGCT and regular maintenance

MLA_2020_00506-Cefas RFI South Bank Phase 1 & 2-15.pdf:2: dredging (i.e. dredge material quantities, times and locations). This would

MLA_2020_00506-Cefas RFI South Bank Phase 1 & 2-15.pdf:2: of limiting dredging to one side of the river at a time and better determine

MLA_2020_00506-Cefas RFI South Bank Phase 1 & 2-15.pdf:2:Dredge & Disposal

MLA_2020_00506-Decision Letter (Marine).pdf:1:the disposal quantities of Activity; (ii) to amend the dredge amounts of Activities

MLA_2020_00506-Decision Letter (Marine).pdf:1:2.1 and 3.1; (iii) to increase the dredge depth to 15.9m BCD in Activity 3.1; (iv)

MLA_2020_00506-Decision Letter (Marine).pdf:2:In the event cumulative dredge and disposal volumes associated with Phase 1 and

MLA_2020_00506-Decision Letter (Marine).pdf:2:liaise with the MMO. An updated EIA may be required in support of continued dredge

MLA_2020_00506-20230224_Natural_England_Comments_MMO_Response_v1.pdf:1: published its findings on the shellfish mortality and determined that dredging

MLA_2020_00506-20230224_Natural_England_Comments_MMO_Response_v1.pdf:1: is not a cause. It is very unlikely that maintenance dredging was the cause. It

MLA_2020_00506-20230224_Natural_England_Comments_MMO_Response_v1.pdf:1: is exceptionally unlikely that capital dredging on the Tees caused the crab

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:1:included activities for the demolition of existing structures, capital dredging of a new turning circle, capital

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:1:dredging of the channel and berthing pocket, and placement of a rock blanket. A previous marine licence

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:1:variation request to amend the dredging methodology, dredge depths, dredge areas and include an

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:1:increase to the capital dredge and disposal volumes to facilitate removal of the material between the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:1: 2. Will the removal of bank material via dredging change the level of suspended sediment compared

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:1: shows the dredging time in weeks. Is it expected that this variation will change the dredging times

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:1: The OSPAR line is taken to be the vertical level of Mean High Water Springs (MHWS). The material to be dredged

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:2:The changes requested under MLV2 relate to dredge and disposal volumes to account for both additional

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:2:dredging of the OSPAR material and a correction to include additional volume for dredging tolerances,

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:2:Sediment sampling of the original dredge area was undertaken in September and analysed in October of

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:2:Further sediment sampling of the material proposed to be dredged between the existing OSPAR line and

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:2:samples (from the original dredge area) and 2022 samples (from the OSPAR material). The review

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:2:lower in the 2022 samples (the OSPAR material) than in the 2019 samples (original dredge area).

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:3:arising from the dredging of OSPAR material is within the parameters assessed as part of the EIA

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:3:of material would be dredged using a cutter suction dredger as part of the South Bank Quay project during

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:3:dredged during Phase 1 of the project, 214,000m3 (comprised of both OSPAR material and material within

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:3:the channel / berth area which is not suitable for disposal at sea) of this is not being dredged by cutter

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:3:suction dredger. The volume of OSPAR material being disposed to land (as identified within ‘MLV2 Options

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:3:The volume of material to be removed by cutter suction dredger therefore equates to the volume of material

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:3:MLV2 is for additional volumes of dredged material associated with the dredge of material behind the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:4:The change in dredging methodology approved under MLV1 has resulted in a reduction in dredging

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:4:be subjected to any potential effects as a result of the dredging activities associated with South Bank Quay.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:4:MLV2 applies for an additional 231,000m3 of dredged material to be disposed offshore (to a total of

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:4:1,133,000m3), mainly resulting from the additional volume of sediment associated with dredging the

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:4:given that the model is based on larger volumes of dredged material.

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:4:in 2022 are lower than those within the samples taken within the dredge area in 2019. It is therefore

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:5:the SediChem modelling to take account of the additional material to be dredged given that the average

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:5:4 Clarification on Dredging Programme

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:5:The material to be dredged and disposed of within MLV2 was considered within the updated Hydrodynamic

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:5:Sediment Plume Modelling report. As such, there is no change to the required durations of dredging as

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:7:dredge area compared to the OSPAR line dredge samples and the Cefas Action Levels (yellow indicates

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:7: dredge

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:7: dredge

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:7:Table A.2 Summary of PAH and THC sample analysis of material form the current capital dredge area

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:7:compared to the OSPAR line dredge samples and the Cefas Action Levels

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:7: Current capital dredge area OSPAR line dredge

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:8: Current capital dredge area OSPAR line dredge

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:8:Table A.3 Summary of PCB sample analysis of material form the current capital dredge area compared to

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:8:the OSPAR line dredge samples and the Cefas Action Levels (yellow indicates exceedance of Cefas AL1)

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:8: Current capital dredge area OSPAR line dredge

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:8:Table A.4 Summary of PBDE sample analysis of material form the current capital dredge area compared to

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:8:the OSPAR line dredge samples and the Cefas Action Levels

MLA_2020_00506-PC1084-RHD-SB-EN-NT-EV-1137-MLA.2020.00506.2 South Bank Quay Marine Licence Variation 2 RFI 17-66.pdf:8: Current capital dredge area OSPAR line dredge

MLA_2020_00506-Sample plan response_MLA_2021_00506 & 507_Updated -39.pdf:1:sample plan to inform a future dredge application. Please see our response below

MLA_2020_00506-Sample plan response_MLA_2021_00506 & 507_Updated -39.pdf:3: licence application for the dredge and disposal of material from Tees South Bank.

MLA_2020_00506-Sample plan response_MLA_2021_00506 & 507_Updated -39.pdf:3: applicant proposes to conduct a capital dredge to remove approximately

MLA_2020_00506-Sample plan response_MLA_2021_00506 & 507_Updated -39.pdf:3: existing navigation channel, the latter of which will also be dredged to form a

MLA_2020_00506-Sample plan response_MLA_2021_00506 & 507_Updated -39.pdf:3: 5.7 to 13 m below Chart Datum (bCD), and the target dredge depth ranges from

MLA_2020_00506-Sample plan response_MLA_2021_00506 & 507_Updated -39.pdf:3: applicant anticipates that trailer suction hopper dredging (TSHD) and backhoe

MLA_2020_00506-Sample plan response_MLA_2021_00506 & 507_Updated -39.pdf:3: dredged, the applicant intends to dispose of dredged material at Tees Bay C

MLA_2020_00506-Sample plan response_MLA_2021_00506 & 507_Updated -39.pdf:3: Management of Dredged Material, samples should be taken to provide a good

MLA_2020_00506-Sample plan response_MLA_2021_00506 & 507_Updated -39.pdf:3: representation of the volume of material to be dredged. The distribution and depth of

MLA_2020_00506-Sample plan response_MLA_2021_00506 & 507_Updated -39.pdf:3: sampling should reflect the size and depth of the area to be dredged, the amount to

MLA_2020_00506-Sample plan response_MLA_2021_00506 & 507_Updated -39.pdf:3: be dredged and the expected variability in the horizontal and vertical distribution of

MLA_2020_00506-Sample plan response_MLA_2021_00506 & 507_Updated -39.pdf:3: 2.2. In consideration of the volume details of the proposed dredge, the MMO advises that

MLA_2020_00506-Sample plan response_MLA_2021_00506 & 507_Updated -39.pdf:4: dredged and samples must be representative of the material to be dredged (see

MLA_2020_00506-Sample plan response_MLA_2021_00506 & 507_Updated -39.pdf:6: 5.2. Where long term licences for maintenance dredging will be applied for, additional

MLA_2020_00506-Licence Document (Marine)-45.pdf:5:In summary, the proposed scheme comprises demolition, capital dredging, offshore

MLA_2020_00506-Licence Document (Marine)-45.pdf:5:disposal of dredged material, placement of rock in the berth pocket and construction

MLA_2020_00506-Licence Document (Marine)-45.pdf:6:Activity 1.1 - Disposal of dredged material from Phase 1

MLA_2020_00506-Licence Document (Marine)-45.pdf:6:Activity type Disposal of dredged material

MLA_2020_00506-Licence Document (Marine)-45.pdf:6:Description Marine sediments to be dredged as part of Phase 1

MLA_2020_00506-Licence Document (Marine)-45.pdf:6: dredged material is anticipated during Phase 1, with

MLA_2020_00506-Licence Document (Marine)-45.pdf:6: dredge and

MLA_2020_00506-Licence Document (Marine)-45.pdf:6: dredge and

MLA_2020_00506-Licence Document (Marine)-45.pdf:6: dredge

MLA_2020_00506-Licence Document (Marine)-45.pdf:6:Methodology Dredging will be undertaken using a combination of trailing

MLA_2020_00506-Licence Document (Marine)-45.pdf:6: suction hopper dredger and backhoe dredging. Dredging

MLA_2020_00506-Licence Document (Marine)-45.pdf:7:Programme of works It is anticipated that dredging of the turning circle would

MLA_2020_00506-Licence Document (Marine)-45.pdf:7: take approximately two weeks. Dredging to be undertaken

MLA_2020_00506-Licence Document (Marine)-45.pdf:7:Site 2 - Tees Dock turning circle - dredge

MLA_2020_00506-Licence Document (Marine)-45.pdf:7:Activity 2.1 - Capital dredging of the Tees Dock turning cirlce

MLA_2020_00506-Licence Document (Marine)-45.pdf:7:Activity type Navigational dredging (capital)

MLA_2020_00506-Licence Document (Marine)-45.pdf:7:Description Capital dredging of the Tees Dock turning circle is required

MLA_2020_00506-Licence Document (Marine)-45.pdf:7: 187,000m3 of material is proposed to be dredged from the

MLA_2020_00506-Licence Document (Marine)-45.pdf:7:Methodology Dredging will be undertaken using a combination of trailing

MLA_2020_00506-Licence Document (Marine)-45.pdf:7: suction hopper dredger and backhoe dredging. Dredging

MLA_2020_00506-Licence Document (Marine)-45.pdf:7:Programme of works It is anticipated that dredging of the turning circle would

MLA_2020_00506-Licence Document (Marine)-45.pdf:7: take approximately two weeks. Dredging to be undertaken

MLA_2020_00506-Licence Document (Marine)-45.pdf:7:Site 3 - Channel and berth - dredge and excavation

MLA_2020_00506-Licence Document (Marine)-45.pdf:7:Activity 3.1 - Capital dredging - channel and berth pocket

MLA_2020_00506-Licence Document (Marine)-45.pdf:7:Activity type Navigational dredging (capital)

MLA_2020_00506-Licence Document (Marine)-45.pdf:7:Description Capital dredging within parts of the existing navigation

MLA_2020_00506-Licence Document (Marine)-45.pdf:7: maintenance dredging to create a berth pocket. The total

MLA_2020_00506-Licence Document (Marine)-45.pdf:7: dredge volume for marine sediments in Phase 1 (excluding

MLA_2020_00506-Licence Document (Marine)-45.pdf:7: included as a separate activity) will be dredged to a

MLA_2020_00506-Licence Document (Marine)-45.pdf:7: dredged to 15.6m bCD, whilst all other areas are to be

MLA_2020_00506-Licence Document (Marine)-45.pdf:7: dredged to 11m bCD.

MLA_2020_00506-Licence Document (Marine)-45.pdf:8:Methodology Dredging will be undertaken using a combination of a

MLA_2020_00506-Licence Document (Marine)-45.pdf:8: Trailing Suction Hopper Dredger (TSHD) and a backhoe

MLA_2020_00506-Licence Document (Marine)-45.pdf:8: dredger. Approximately, up to three barges will be required

MLA_2020_00506-Licence Document (Marine)-45.pdf:8: to support with the transport of sediment dredged using

MLA_2020_00506-Licence Document (Marine)-45.pdf:8: the backhoe dredger to the offshore disposal site.

MLA_2020_00506-Licence Document (Marine)-45.pdf:8:Programme of works Dredge and disposal activity will take approximately five

MLA_2020_00506-Licence Document (Marine)-45.pdf:8: months. Dredging to be undertaken 24 hours a day, seven

MLA_2020_00506-Licence Document (Marine)-45.pdf:9: The berth pocket will need to dredged to a greater depth

MLA_2020_00506-Licence Document (Marine)-45.pdf:10: the berth pocket dredge. It is anticipated that installation

MLA_2020_00506-Licence Document (Marine)-45.pdf:12:Where a licensed activity comprises dredging or the disposal of dredged material,

MLA_2020_00506-Licence Document (Marine)-45.pdf:12:the total quantity of material authorised to be dredged or disposed of in any given

MLA_2020_00506-Licence Document (Marine)-45.pdf:12:For each time period, the actual quantity dredged or disposed of shall be calculated by

MLA_2020_00506-Licence Document (Marine)-45.pdf:12:adding the quantity of material dredged or disposed of during that time period under

MLA_2020_00506-Licence Document (Marine)-45.pdf:12:this version of this licence to that dredged or disposed of under any previous version

MLA_2020_00506-Licence Document (Marine)-45.pdf:13:5.2.4 An archaeological protocol must be submitted to a the MMO 6 weeks prior to commencement of dredging activities, as

MLA_2020_00506-Licence Document (Marine)-45.pdf:13: an archaeological written scheme of investigation (WSI). Dredging works cannot commence until approval is given by

MLA_2020_00506-Licence Document (Marine)-45.pdf:13: To mitigate the potential impacts from dredging.

MLA_2020_00506-Licence Document (Marine)-45.pdf:14:5.2.7 The dredging activities approved by this licence may not commence until such a time as a scheme of monitoring has

MLA_2020_00506-Licence Document (Marine)-45.pdf:14: for written confirmation prior to dredging works commencing.

MLA_2020_00506-Licence Document (Marine)-45.pdf:14: To monitor impacts to water quality during dredging.

MLA_2020_00506-Licence Document (Marine)-45.pdf:15:5.2.8 No dredging not covered under statutory harbour authority powers can be conducted during the period from 1st July to

MLA_2020_00506-Licence Document (Marine)-45.pdf:15: reached that only 1 dredge campaign is taking place at this time. No other dredging will take place on the River Tees

MLA_2020_00506-Licence Document (Marine)-45.pdf:15:5.2.9 If permission is granted by the MMO to undertake dredging operation during 1st July to 31st August (inclusive), dissolved

MLA_2020_00506-Licence Document (Marine)-45.pdf:15: oxygen levels must be monitored prior to the dredging activity, as a minimum, monitored every hour during the dredging

MLA_2020_00506-Licence Document (Marine)-45.pdf:15: activity. If a drop of 1m/g of dissolved oxygen is observed, than the dredging activity must temporarily pause for a period

MLA_2020_00506-Licence Document (Marine)-45.pdf:15:5.2.10 Dredging must be limited to working on one side of the estuary channel at a time.

MLA_2020_00506-Licence Document (Marine)-45.pdf:16:5.2.12 Pre and post bathymetric dredge surveys must be submitted, together with an interpretation of the difference between

MLA_2020_00506-Licence Document (Marine)-45.pdf:16: the survey results and a volume calculation within 4 weeks of completion of each dredge campaign.

MLA_2020_00506-Licence Document (Marine)-45.pdf:16: the proposed start date of capital dredging and disposal for South Bank Quay and, subject to the outcome of that

MLA_2020_00506-Licence Document (Marine)-45.pdf:16: of capital dredging and disposal:

MLA_2020_00506-Licence Document (Marine)-45.pdf:16: • Written confirmation that disposal of dredged material from the South Bank Quay project will not temporally coincide

MLA_2020_00506-Licence Document (Marine)-45.pdf:16: with that arising from the NGCT project (meaning that no single phase of the capital dredging and disposal for the two

MLA_2020_00506-Licence Document (Marine)-45.pdf:16: • Written confirmation that the total (aggregated) quantity of dredged material to be disposed would not exceed 1.34

MLA_2020_00506-Licence Document (Marine)-45.pdf:16: million m3 per month (the peak monthly volume assessed within the EIA), should it be apparent that the dredging and

MLA_2020_00506-Licence Document (Marine)-45.pdf:16: disposal from South Bank Quay could temporally coincide (meaning that any phase of the capital dredging and disposal

MLA_2020_00506-Licence Document (Marine)-45.pdf:16: dredging and disposal programmes for NGCT and the South Bank Quay project could (i) temporally coincide and (ii) the

MLA_2020_00506-Licence Document (Marine)-45.pdf:16: total (aggregated) quantity of dredged material to be disposed could exceed 1.34 million m3 per month, with a detailed

MLA_2020_00506-Licence Document (Marine)-45.pdf:16: programme of environmental monitoring to verify the predicted cumulative environmental impacts of disposal of dredged

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:4:In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of dredged

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:4:“An archaeological protocol must be submitted to a the MMO 6 weeks prior to commencement of dredging

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:4: activities, as an archaeological written scheme of investigation (WSI). Dredging works cannot commence

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:4: until approval is given by the MMO. Reason: To mitigate the potential impacts from dredging.”

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:5: BERTH POCKET DREDGING AREA BERTH POCKET DREDGING AREA

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:5: CHANNEL DREDGING AREA CHANNEL DREDGING AREA

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:5: DREDGING AREA

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:6: Dredging and Port Construction: Interactions with Features of Archaeological or Heritage Interest

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:6: Marine Aggregate Dredging and the Historic Environment; Guidance note (BMAPA, English Heritage

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:10:The EIA Report (Royal HaskoningDHV, 2020) suggested that, although extensive dredging and reclamation

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:12:reclamation and disturbance from previous dredging within the channel. Although there is high potential for

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:13:  capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:14: the dredging for the Tees Dock turning circle and the berth pocket along the new quay(s) have the

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:14: There is no harm during the disposal of the dredged material as the area is an agreed (licenced)

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:14: impacts from dredging and piling is an acceptable means of mitigating the identified impacts for the

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:14: dredging.

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:14: during dredging are recorded and reported. We believe this approach is reasonable and proportionate to

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:15:reclamation and disturbance from previous dredging within the channel, archaeological material may still

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:15:farms, no such parallel document exists for the ports or dredging industry. This guidance, therefore, is

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:15:considered to represent an appropriate guide as to the contents of a WSI for the proposed dredge in the

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:18:Vibrocores and boreholes undertaken within the footprint of the capital dredge have shown that in situ

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:18:However, in order to achieve the objective of the dredging (to deepen the existing riverbed and intertidal),

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:18:whilst it may be possible to accommodate AEZs adjacent to the external boundaries of the dredge footprint,

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:18:During dredging, should any previously unreported wrecks (vessel or aircraft) or other sites of archaeological

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:18:interest become apparent within the capital dredge footprint these must be excluded as soon as they are

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:19:possible in order to achieve the required dredge depths, in the event of a significant discovery of

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:19: Implementation of a TEZ prohibiting dredging within its boundaries until further investigation can be

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:19: Recording and excavation of archaeological material or relocation of material beyond the dredging

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:19:being encountered during dredging, it is possible that certainty of the nature and extent of the obstruction

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:20:for example, to monitor the removal of archaeological material which may be encountered during dredging.

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:20:No watching briefs are currently proposed during dredging although the works will be monitored through the

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:24:It is currently anticipated that dredging will be undertaken using a combination of a Trailing Suction Hopper

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:24:Dredger (TSHD) and a backhoe dredger, with Cutter Suction Dredger (CSD) being considered as an option.

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:24:It is envisaged that up to three barges will be required to support with the transport of sediment dredged

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:24:using the backhoe dredger to the offshore disposal site.

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:25:This PAD addresses finds of archaeological interest, should they be encountered during dredging on the

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:25: Unexpected obstruction encountered by jack-ups or the draghead/dredge bucket on the channel floor;

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:25: Archaeological material observed within dredged material or trapped in the dredge gear or caught on

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:26:of contact for staff on site/ on board the dredger. The Site Champion will be responsible for:

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:26:(dredging) will cease in the vicinity of this position and the position of the obstruction will be recorded. Works

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:27:will be the position of the find itself, if known, or the position of the dredger at the time of the discovery. The

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:29:BMAPA and English Heritage (2003). Marine Aggregate Dredging and the Historic Environment; Guidance

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:29:Marine Aggregate Dredging. Funded by English Heritage through the Aggregate Levy

Modelling_Exclusion_Zones_for_Marine_Aggregate_Dredging.pdf

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:30:PIANC (2014). Dredging and Port Construction: Interactions with Features of Archaeological or Heritage

PC1084-RHD-SB-EN-RP-EV-1123 Written Scheme of Investigation.pdf:30:https://www.pianc.org/publications/envicom/envicom-guidance-document-124-dredging-and-port-

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:1: No dredging not covered under statutory harbour

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:1: that only 1 dredge campaign is taking place at this

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:1: time. No other dredging will take place on the River

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:1: dredging operation during 1st July to 31st August

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:1: monitored prior to the dredging activity, as a

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:1: 5.2.9 dredging activity. If a drop of 1m/g of dissolved

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:1: oxygen is observed, than the dredging activity must

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2: Dredging must be limited to working on one side of plumes to one side of the estuary

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:in Anglian on proposed Harwich Agitation dredging trial, August 2020) .

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:Given the difficulties in avoiding dredging during the months of July and August, further correspondence

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:maintenance dredging would be undertaken during these months if dredging for the South Bank project

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:was to proceed. This led to an additional Condition 5.2.9 to monitor DO in these months with dredging to

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:However, it is considered likely that agreement from PDT to cease maintenance dredging in the Tees

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:maintenance and non-maintenance dredging to proceed during the months of July and August (i.e. it seeks

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:area of the estuary impacted by any sediment plumes resulting from dredging activities therefore this

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:2:dredging associated with the South Bank project that sediment suspended within the dredging plumes will

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:3:fall to the riverbed, either soon after disturbance or spillage during the dredging operation (for coarser-

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:3:Figure 2-1 Maximum enhanced suspended solids concentrations (near surface layer) arising from dredging activities during Phase

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:3:alongside the fact that a significant component of the dredged material is geological sediment which is

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:4:of the proposed scheme with other dredging projects on marine water quality, specifically SSC. To

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:4:maximum concentrations of suspended solids for all projects are predicted to be localised to the dredging

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:4:activity and quickly disperse with distance from the dredger. Additionally, as outlined for South Bank, peaks

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:4:to be remote even if dredging occurred concurrently.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:4:relating to only dredging one side of the channel at a time would remove the risk of a barrier covering the

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:4:tidal/riverine flows. Navigational safety would also restrict dredging on opposite sides of the estuary.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:5:environmental turbidity limits for dredging’ (CEDA 2020) has been reviewed and simplified into the

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:5: and the dredging plan.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:5:Predicted impacts associated with the dredging are outlined in Section 2.1 above. This indicates that

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:5:dredge plumes tend to be narrow and follow tidal flows thus indicating dredging on one side of the estuary

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:5:which the dredging would occur indicates that the ‘Tees’ is high status for this parameter.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:6:sensitive to dredging related sediment plumes.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:7: the sensitive receptors and the dredging plan

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:7:If dredging is to be undertaken in July and August, it is proposed that two monitoring buoys are installed

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:7:at least one week prior to dredging commencing to recover baseline readings. Two monitoring buoys are

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:8:The monitoring buoys will remain in place during the dredging and for one week after the end of dredging

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:8:is considered that one week of monitoring post completion of the dredge is adequate to illustrate a return

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:8:dredging contractor for monitoring against the trigger values as outlined in Section 2.2.4 and implementing

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:9:baseline (collected prior to dredging commencing). If both buoys show an increase in 50mg/l over baseline

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:9: • Adjust the overflow position of the dredger;

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:9:If the difference falls below 50mg/l for one or both of the buoys then the dredging can recommence without

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10:that dredging temporarily pauses for a period of six hours (a tidal cycle). If SSC do not return to below

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10:1000mg/l after six hours, it is proposed that dredging re-commences rather than wait for levels to return to

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10:All recorded data will be collated and summarised in a short report alongside dredging activity logs. The

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10: • Dredging activity logs.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10:The full report will be provided within two months of dredging activities being completed.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10: 1. CEDA (2020). Assessing and Evaluating Environmental Turbidity Limits for Dredging online.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10: Available at: http://www.dredging.org/media/ceda/org/documents/resources/cedaonline/2020-05-

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:10: 10EAN. ECMAS advice to PSO team in Anglian on proposed Harwich Agitation dredging trial.

PC1084-RHD-SB-XX-NT-Z-0001-South Bank SSC monitoring plan V3.pdf:11: sediment impacts on fish and shellfish with relation to dredging activities in estuaries. North

MLA_2020_00506-APPLICATION-FORM.pdf:2:In summary, the proposed scheme comprises demolition, capital dredging, offshore

MLA_2020_00506-APPLICATION-FORM.pdf:2:disposal of dredged material, placement of rock in the berth pocket and construction

MLA_2020_00506-APPLICATION-FORM.pdf:9:process for dredging?

MLA_2020_00506-APPLICATION-FORM.pdf:9:The accelerated licensing process applies to certain types of small-scale low-risk dredging activity.

MLA_2020_00506-APPLICATION-FORM.pdf:10: Dredging at RiverA. Create one site for RiverA and add dredging as an activity.

MLA_2020_00506-APPLICATION-FORM.pdf:10: Dredging and quay wall improvements at RiverA. Create 2 locations: one for the

MLA_2020_00506-APPLICATION-FORM.pdf:10: dredging in front of the new quay area and one for the quay wall improvements.

MLA_2020_00506-APPLICATION-FORM.pdf:10: Dredging at RiverA and removal of large concrete block within the dredge area.

MLA_2020_00506-APPLICATION-FORM.pdf:10: dredging.

MLA_2020_00506-APPLICATION-FORM.pdf:10:Disposal of dredged TEES BAY C Disposal of dredged

MLA_2020_00506-APPLICATION-FORM.pdf:10:Tees Dock turning circle - dredge

MLA_2020_00506-APPLICATION-FORM.pdf:11:Capital dredging of Tees Dock turning Navigational dredging

MLA_2020_00506-APPLICATION-FORM.pdf:11:Channel and berth - dredge and excavation

MLA_2020_00506-APPLICATION-FORM.pdf:11:Capital dredging - Channel and berth - Navigational dredging

MLA_2020_00506-APPLICATION-FORM.pdf:12:TEES BAY C - Disposal of dredged material from Phase 1

MLA_2020_00506-APPLICATION-FORM.pdf:12:Disposal of dredged material

MLA_2020_00506-APPLICATION-FORM.pdf:12:Disposal of dredged material from Phase 1

MLA_2020_00506-APPLICATION-FORM.pdf:13:The marine sediments to be dredged as part of Phase 1 of the proposed scheme are to

MLA_2020_00506-APPLICATION-FORM.pdf:13:be disposed of at the Tees Bay C disposal site. Approximately 820,000m3 of dredged

MLA_2020_00506-APPLICATION-FORM.pdf:13:The dredging vessel and barges would transit to the disposal site where the dredged

MLA_2020_00506-APPLICATION-FORM.pdf:13:material would be deposited before transiting back to the dredge area. This cycle would

MLA_2020_00506-APPLICATION-FORM.pdf:13:be undertaken until the activity is completed. Dredging and disposal is proposed to be

MLA_2020_00506-APPLICATION-FORM.pdf:13:The programme for the dredge and disposal activity is dependent on the equipment to

MLA_2020_00506-APPLICATION-FORM.pdf:13:that the dredge and disposal activity would take approximately five months. Dredging

MLA_2020_00506-APPLICATION-FORM.pdf:13:offshore disposal of dredged material (see Section 26 of the EIA Report). The disposal of

MLA_2020_00506-APPLICATION-FORM.pdf:13:dredged material is predicted to have a negligible impact on fisheries, marine ecology

MLA_2020_00506-APPLICATION-FORM.pdf:14:Disposal of dredged material

MLA_2020_00506-APPLICATION-FORM.pdf:14: dredg

MLA_2020_00506-APPLICATION-FORM.pdf:14: 2mm) dredg

MLA_2020_00506-APPLICATION-FORM.pdf:15: dredg

MLA_2020_00506-APPLICATION-FORM.pdf:15:Dredge details

MLA_2020_00506-APPLICATION-FORM.pdf:15:You should provide details of the dredge. This should include the methodology and location. If this has already been

MLA_2020_00506-APPLICATION-FORM.pdf:15:The details of the proposed dredge are outlined in the dredge activity. In summary, it is

MLA_2020_00506-APPLICATION-FORM.pdf:15:proposed that the dredge is undertaken using a combination of trailing suction hopper

MLA_2020_00506-APPLICATION-FORM.pdf:15:dredger and a backhoe dredger.

MLA_2020_00506-APPLICATION-FORM.pdf:15:Has the dredged material been analysed?

MLA_2020_00506-APPLICATION-FORM.pdf:15:The disposal of dredged material to sea should be considered a last resort. You should provide details of alternatives

MLA_2020_00506-APPLICATION-FORM.pdf:15:Tees Dock turning circle - dredge - Capital dredging of the Tees Dock turning cirlce

MLA_2020_00506-APPLICATION-FORM.pdf:16:Dredging

MLA_2020_00506-APPLICATION-FORM.pdf:16:Navigational dredging (capital)

MLA_2020_00506-APPLICATION-FORM.pdf:16:Capital dredging of the Tees Dock turning cirlce

MLA_2020_00506-APPLICATION-FORM.pdf:16:Capital dredging of the Tees Dock turning circle is required to deepen it from an existing

MLA_2020_00506-APPLICATION-FORM.pdf:16:depth of 8.8m bCD to 11m bCD (maintained at 10.4m bCD). This dredging is required as

MLA_2020_00506-APPLICATION-FORM.pdf:16:proposed to be dredged from the Tees Dock turning circle.

MLA_2020_00506-APPLICATION-FORM.pdf:16:It is proposed that dredging would be undertaken using a combination of trailing

MLA_2020_00506-APPLICATION-FORM.pdf:16:suction hopper dredger and backhoe dredging.

MLA_2020_00506-APPLICATION-FORM.pdf:16:It is anticipated that dredging of the turning circle would take approximately two weeks.

MLA_2020_00506-APPLICATION-FORM.pdf:16:Dredging is proposed to be undertaken 24 hours a day, seven days a week. The specific

MLA_2020_00506-APPLICATION-FORM.pdf:16:timescale when dredging is to take place is unknown at this stage and therefore we

MLA_2020_00506-APPLICATION-FORM.pdf:17:Navigational dredging (capital)

MLA_2020_00506-APPLICATION-FORM.pdf:17: dredging Hopper

MLA_2020_00506-APPLICATION-FORM.pdf:17: Specific 1.9 Dredge 11

MLA_2020_00506-APPLICATION-FORM.pdf:17: below be dredged

MLA_2020_00506-APPLICATION-FORM.pdf:17:dredged per campaign

MLA_2020_00506-APPLICATION-FORM.pdf:18:Sediment quality data from the proposed dredge footprint will be provided once

MLA_2020_00506-APPLICATION-FORM.pdf:18:Dredged material is proposed to be disposed of at the Tees Bay C disposal site.

MLA_2020_00506-APPLICATION-FORM.pdf:18:Channel and berth - dredge and excavation - Capital dredging - channel and berth

MLA_2020_00506-APPLICATION-FORM.pdf:18:Dredging

MLA_2020_00506-APPLICATION-FORM.pdf:18:Navigational dredging (capital)

MLA_2020_00506-APPLICATION-FORM.pdf:18:Capital dredging - channel and berth pocket

MLA_2020_00506-APPLICATION-FORM.pdf:19:Capital dredging is proposed within parts of the existing navigation channel, and within

MLA_2020_00506-APPLICATION-FORM.pdf:19:areas not currently subject to maintenance dredging to create a berth pocket. The total

MLA_2020_00506-APPLICATION-FORM.pdf:19:dredge volume for marine sediments in Phase 1 (excluding that from the Tees Dock

MLA_2020_00506-APPLICATION-FORM.pdf:19:approximately 650,000m3. The berth pocket is proposed to be dredged to 15.6m bCD,

MLA_2020_00506-APPLICATION-FORM.pdf:19:whilst all other areas are to be dredged to 11m bCD.

MLA_2020_00506-APPLICATION-FORM.pdf:19:It is anticipated that dredging will be undertaken using a combination of a Trailing

MLA_2020_00506-APPLICATION-FORM.pdf:19:Suction Hopper Dredger (TSHD) and a backhoe dredger. It is envisaged that up to three

MLA_2020_00506-APPLICATION-FORM.pdf:19:barges will be required to support with the transport of sediment dredged using the

MLA_2020_00506-APPLICATION-FORM.pdf:19:backhoe dredger to the offshore disposal site.

MLA_2020_00506-APPLICATION-FORM.pdf:19:For the purposes of the EIA, it has been assumed that the dredge and disposal activity

MLA_2020_00506-APPLICATION-FORM.pdf:19:would take approximately five months. Dredging is proposed to be undertaken 24

MLA_2020_00506-APPLICATION-FORM.pdf:19:hours a day, seven days a week. The specific months when dredging is to take place is

MLA_2020_00506-APPLICATION-FORM.pdf:20:Navigational dredging (capital)

MLA_2020_00506-APPLICATION-FORM.pdf:20: dredging

MLA_2020_00506-APPLICATION-FORM.pdf:20: Specific 1.9 Dredge 5

MLA_2020_00506-APPLICATION-FORM.pdf:20: below be dredged

MLA_2020_00506-APPLICATION-FORM.pdf:20: dredging Hopper

MLA_2020_00506-APPLICATION-FORM.pdf:20: Specific 1.9 Dredge 11

MLA_2020_00506-APPLICATION-FORM.pdf:20: below be dredged

MLA_2020_00506-APPLICATION-FORM.pdf:20: dredging

MLA_2020_00506-APPLICATION-FORM.pdf:20: Specific 1.7 Dredge 15.6

MLA_2020_00506-APPLICATION-FORM.pdf:21: below be dredged

MLA_2020_00506-APPLICATION-FORM.pdf:21:dredged per campaign

MLA_2020_00506-APPLICATION-FORM.pdf:21:inform the impact assessment. Sediment quality data from the proposed dredge

MLA_2020_00506-APPLICATION-FORM.pdf:21:The dredged material is proposed to be deposited offshore within the Tees Bay C

MLA_2020_00506-APPLICATION-FORM.pdf:24:as potentially destabilising the quay wall. The berth pocket would need to dredged to a

MLA_2020_00506-APPLICATION-FORM.pdf:24:The rock blanket would be installed following completion of the berth pocket dredge. It

MLA_2020_00506-Licence Document (Marine)-58.pdf:5:In summary, the scheme comprises demolition, capital dredging, offshore disposal

MLA_2020_00506-Licence Document (Marine)-58.pdf:5:of dredged material, placement of rock in the berth pocket and construction and

MLA_2020_00506-Licence Document (Marine)-58.pdf:6:Activity 1.1 - Disposal of dredged material from Phase 1

MLA_2020_00506-Licence Document (Marine)-58.pdf:6:Activity type Disposal of dredged material

MLA_2020_00506-Licence Document (Marine)-58.pdf:6:Description Marine sediments to be dredged as part of Phase 1

MLA_2020_00506-Licence Document (Marine)-58.pdf:6: dredged material is anticipated during Phase 1, with

MLA_2020_00506-Licence Document (Marine)-58.pdf:6: dredge and

MLA_2020_00506-Licence Document (Marine)-58.pdf:6: dredge and

MLA_2020_00506-Licence Document (Marine)-58.pdf:6: dredge

MLA_2020_00506-Licence Document (Marine)-58.pdf:6:Methodology Dredging will be undertaken using a combination of

MLA_2020_00506-Licence Document (Marine)-58.pdf:6: cutter suction dredger, trailing suction hopper dredger and

MLA_2020_00506-Licence Document (Marine)-58.pdf:6: backhoe dredging. Dredging is proposed to be undertaken

MLA_2020_00506-Licence Document (Marine)-58.pdf:7:Programme of works Dredge and disposal activity will take approximately five

MLA_2020_00506-Licence Document (Marine)-58.pdf:7: months. Dredging to be undertaken 24 hours a day, seven

MLA_2020_00506-Licence Document (Marine)-58.pdf:7:Site 2 - Tees Dock turning circle - dredge

MLA_2020_00506-Licence Document (Marine)-58.pdf:7:Activity 2.1 - Capital dredging of the Tees Dock turning circle

MLA_2020_00506-Licence Document (Marine)-58.pdf:7:Activity type Navigational dredging (capital)

MLA_2020_00506-Licence Document (Marine)-58.pdf:7:Description Capital dredging of the Tees Dock turning circle is required

MLA_2020_00506-Licence Document (Marine)-58.pdf:7: 187,000m3 of material is proposed to be dredged from the

MLA_2020_00506-Licence Document (Marine)-58.pdf:7:Methodology Dredging will be undertaken using a combination of

MLA_2020_00506-Licence Document (Marine)-58.pdf:7: cutter suction dredger, trailing suction hopper dredger and

MLA_2020_00506-Licence Document (Marine)-58.pdf:7: backhoe dredging. Dredging is proposed to be undertaken

MLA_2020_00506-Licence Document (Marine)-58.pdf:7:Programme of works It is anticipated that dredging of the turning circle would

MLA_2020_00506-Licence Document (Marine)-58.pdf:7: take approximately two weeks. Dredging to be undertaken

MLA_2020_00506-Licence Document (Marine)-58.pdf:7:Site 3 - Channel and berth - dredge and excavation

MLA_2020_00506-Licence Document (Marine)-58.pdf:7:Activity 3.1 - Capital dredging - channel and berth pocket

MLA_2020_00506-Licence Document (Marine)-58.pdf:7:Activity type Navigational dredging (capital)

MLA_2020_00506-Licence Document (Marine)-58.pdf:7:Description Capital dredging within parts of the existing navigation

MLA_2020_00506-Licence Document (Marine)-58.pdf:7: maintenance dredging to create a berth pocket. The total

MLA_2020_00506-Licence Document (Marine)-58.pdf:7: dredge volume for marine sediments in Phase 1 (excluding

MLA_2020_00506-Licence Document (Marine)-58.pdf:7: included as a separate activity) will be dredged to a

MLA_2020_00506-Licence Document (Marine)-58.pdf:7: dredged to 15.6m bCD, whilst all other areas are to be

MLA_2020_00506-Licence Document (Marine)-58.pdf:7: dredged to 11.5m bCD.

MLA_2020_00506-Licence Document (Marine)-58.pdf:8:Methodology Dredging will be undertaken using a combination of cutter

MLA_2020_00506-Licence Document (Marine)-58.pdf:8: suction dredger, Trailing Suction Hopper Dredger (TSHD)

MLA_2020_00506-Licence Document (Marine)-58.pdf:8: and a backhoe dredger. Approximately, up to three barges

MLA_2020_00506-Licence Document (Marine)-58.pdf:8: dredged using the backhoe dredger or cutter suction

MLA_2020_00506-Licence Document (Marine)-58.pdf:8: dredger to the offshore disposal site.

MLA_2020_00506-Licence Document (Marine)-58.pdf:8:Programme of works Dredge and disposal activity will take approximately five

MLA_2020_00506-Licence Document (Marine)-58.pdf:8: months. Dredging to be undertaken 24 hours a day, seven

MLA_2020_00506-Licence Document (Marine)-58.pdf:9: The berth pocket will need to dredged to a greater depth

MLA_2020_00506-Licence Document (Marine)-58.pdf:10: the berth pocket dredge. It is anticipated that installation

MLA_2020_00506-Licence Document (Marine)-58.pdf:10: involved in the dredging of material not suitable for

MLA_2020_00506-Licence Document (Marine)-58.pdf:11: Once dredging of material not suitable for disposal at sea

MLA_2020_00506-Licence Document (Marine)-58.pdf:11: of the dredging of exclusion zone.

MLA_2020_00506-Licence Document (Marine)-58.pdf:13:Where a licensed activity comprises dredging or the disposal of dredged material,

MLA_2020_00506-Licence Document (Marine)-58.pdf:13:the total quantity of material authorised to be dredged or disposed of in any given

MLA_2020_00506-Licence Document (Marine)-58.pdf:13:For each time period, the actual quantity dredged or disposed of shall be calculated by

MLA_2020_00506-Licence Document (Marine)-58.pdf:13:adding the quantity of material dredged or disposed of during that time period under

MLA_2020_00506-Licence Document (Marine)-58.pdf:13:this version of this licence to that dredged or disposed of under any previous version

MLA_2020_00506-Licence Document (Marine)-58.pdf:14:5.2.4 An archaeological protocol must be submitted to a the MMO 6 weeks prior to commencement of dredging activities, as

MLA_2020_00506-Licence Document (Marine)-58.pdf:14: an archaeological written scheme of investigation (WSI). Dredging works cannot commence until approval is given by

MLA_2020_00506-Licence Document (Marine)-58.pdf:14: To mitigate the potential impacts from dredging.

MLA_2020_00506-Licence Document (Marine)-58.pdf:15:5.2.7 The dredging activities approved by this licence may not commence until such a time as a scheme of monitoring has

MLA_2020_00506-Licence Document (Marine)-58.pdf:15: for written confirmation prior to dredging works commencing.

MLA_2020_00506-Licence Document (Marine)-58.pdf:15: To monitor impacts to water quality during dredging.

MLA_2020_00506-Licence Document (Marine)-58.pdf:16:5.2.8 No dredging not covered under statutory harbour authority powers can be conducted during the period from 1st July to

MLA_2020_00506-Licence Document (Marine)-58.pdf:16: reached that only 1 dredge campaign is taking place at this time. No other dredging will take place on the River Tees

MLA_2020_00506-Licence Document (Marine)-58.pdf:16:5.2.9 If permission is granted by the MMO to undertake dredging operation during 1st July to 31st August (inclusive), dissolved

MLA_2020_00506-Licence Document (Marine)-58.pdf:16: oxygen levels must be monitored prior to the dredging activity, as a minimum, monitored every hour during the dredging

MLA_2020_00506-Licence Document (Marine)-58.pdf:16: activity. If a drop of 1m/g of dissolved oxygen is observed, than the dredging activity must temporarily pause for a period

MLA_2020_00506-Licence Document (Marine)-58.pdf:16:5.2.10 Dredging must be limited to working on one side of the estuary channel at a time.

MLA_2020_00506-Licence Document (Marine)-58.pdf:16: Once the area bounded by Schedule 8 has been dredged, surface grabs for samples within the area adjacent to the

MLA_2020_00506-Licence Document (Marine)-58.pdf:16: dredged area must been taken to ensure there has been no movement of contaminated sediment outside of the area

MLA_2020_00506-Licence Document (Marine)-58.pdf:17: within one week of the completion of any remedial dredging.

MLA_2020_00506-Licence Document (Marine)-58.pdf:17:5.2.12 Pre and post bathymetric dredge surveys must be submitted, together with an interpretation of the difference between

MLA_2020_00506-Licence Document (Marine)-58.pdf:17: the survey results and a volume calculation within 4 weeks of completion of each dredge campaign.

MLA_2020_00506-Licence Document (Marine)-58.pdf:17: the proposed start date of capital dredging and disposal for South Bank Quay and, subject to the outcome of that

MLA_2020_00506-Licence Document (Marine)-58.pdf:17: of capital dredging and disposal:

MLA_2020_00506-Licence Document (Marine)-58.pdf:17: • Written confirmation that disposal of dredged material from the South Bank Quay project will not temporally coincide

MLA_2020_00506-Licence Document (Marine)-58.pdf:17: with that arising from the NGCT project (meaning that no single phase of the capital dredging and disposal for the two

MLA_2020_00506-Licence Document (Marine)-58.pdf:17: • Written confirmation that the total (aggregated) quantity of dredged material to be disposed would not exceed 1.34

MLA_2020_00506-Licence Document (Marine)-58.pdf:17: million m3 per month (the peak monthly volume assessed within the EIA), should it be apparent that the dredging and

MLA_2020_00506-Licence Document (Marine)-58.pdf:17: disposal from South Bank Quay could temporally coincide (meaning that any phase of the capital dredging and disposal

MLA_2020_00506-Licence Document (Marine)-58.pdf:17: dredging and disposal programmes for NGCT and the South Bank Quay project could (i) temporally coincide and (ii) the

MLA_2020_00506-Licence Document (Marine)-58.pdf:18: total (aggregated) quantity of dredged material to be disposed could exceed 1.34 million m3 per month, with a detailed

MLA_2020_00506-Licence Document (Marine)-58.pdf:18: programme of environmental monitoring to verify the predicted cumulative environmental impacts of disposal of dredged

MLA_2020_00506-PC1084-RHD-ZZ-XX-NT-Z-0001 MLA.2020.00506.1 Response to Further Information Request-53.pdf:1:dredging, offshore disposal of dredged material, rock placement and construction works associated with

MLA_2020_00506-PC1084-RHD-ZZ-XX-NT-Z-0001 MLA.2020.00506.1 Response to Further Information Request-53.pdf:1: of Cutter Suction Dredger;

MLA_2020_00506-PC1084-RHD-ZZ-XX-NT-Z-0001 MLA.2020.00506.1 Response to Further Information Request-53.pdf:1: • A change to the dredge levels specified within the description of licensed activity 2.1 and 3.1 from

MLA_2020_00506-PC1084-RHD-ZZ-XX-NT-Z-0001 MLA.2020.00506.1 Response to Further Information Request-53.pdf:1: • A revision to the coordinates of some of the dredging boundaries as detailed in licence schedule

MLA_2020_00506-PC1084-RHD-ZZ-XX-NT-Z-0001 MLA.2020.00506.1 Response to Further Information Request-53.pdf:1:Clarify the correct original dredge volume. The dredge volumes indicated in table 1 of NRA addendum

MLA_2020_00506-PC1084-RHD-ZZ-XX-NT-Z-0001 MLA.2020.00506.1 Response to Further Information Request-53.pdf:1:The original NRA was produced prior to finalising of the project requirements in terms of phasing, dredge

MLA_2020_00506-PC1084-RHD-ZZ-XX-NT-Z-0001 MLA.2020.00506.1 Response to Further Information Request-53.pdf:1:depths, up to date bathy date. When finalised this resulted in an increase in the dredge volumes. The

MLA_2020_00506-PC1084-RHD-ZZ-XX-NT-Z-0001 MLA.2020.00506.1 Response to Further Information Request-53.pdf:2:and hard material (640,000m3) of the total dredging volume indicated in table 2 of NRA or the combined

MLA_2020_00506-PC1084-RHD-ZZ-XX-NT-Z-0001 MLA.2020.00506.1 Response to Further Information Request-53.pdf:2:dredge volume as a result of the planned variation submission to move the OSPAR line as per our general

MLA_2020_00506-PC1084-RHD-ZZ-XX-NT-Z-0001 MLA.2020.00506.1 Response to Further Information Request-53.pdf:2:“An increase in the dredge volumes due to a proposed variation to the marine licence which may re-classify

MLA_2020_00506-PC1084-RHD-ZZ-XX-NT-Z-0001 MLA.2020.00506.1 Response to Further Information Request-53.pdf:2:Provide details of the increase to the dredge boundary footprint. It is difficult to determine this using the

MLA_2020_00506-PC1084-RHD-ZZ-XX-NT-Z-0001 MLA.2020.00506.1 Response to Further Information Request-53.pdf:2:contaminated material from the exclusion zone which would not be within our dredge boundary. This was

MLA_2020_00506-PC1084-RHD-ZZ-XX-NT-Z-0001 MLA.2020.00506.1 Response to Further Information Request-53.pdf:2:as the way to proceed with this requirement. Please note there will be no increase to the dredge volume

MLA_2020_00506-EA_MLA2020005062_OFFICIAL_301122.pdf:1:PHASE 1 (NEW QUAY, DISPOSAL OF DREDGED MATERIAL, NAVIGATIONAL

MLA_2020_00506-EA_MLA2020005062_OFFICIAL_301122.pdf:1:DREDGING (CAPITAL), OTHER DEPOSITS, OTHER REMOVALS -

MLA_2020_00506-EA_MLA2020005062_OFFICIAL_301122.pdf:1:DREDGE AN ADDITIONAL 29,000M3 OF MATERIAL FROM WITHIN THE TEES

MLA_2020_00506-EA_MLA2020005062_OFFICIAL_301122.pdf:1:DOCK TURNING CIRCLE. DREDGE AN ADDITIONAL 416,000M3 OF CLAY FROM

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:3:5.2 Alternative dredging plant 5

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:3:5.3 Alternative dredge depths 6

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:4:7.21 Offshore disposal of dredged material 16

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:5:In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of dredged

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:5:1113 shows the proposed dredge (and excavation in front of the proposed quay wall) footprint.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:6: BERTH POCKET DREDGING AREA BERTH POCKET DREDGING AREA

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:6: CHANNEL DREDGING AREA CHANNEL DREDGING AREA

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:6: DREDGING AREA

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: AREA DREDGED

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: DREDGE TO -11.0mCD

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: DREDGE TO -15.6mCD

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: DREDGED TO -11mCD MUDFLATS

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: AREA DREDGED S3

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: AREA DREDGED

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: DREDGED TO -11mCD

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: PHASE 1 UPSTREAM AREA DREDGED

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: AREA DREDGED

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: DREDGING PLAN

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:9: • Capital dredging of approximately 1,800,000m3 of marine sediments with offshore disposal into

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:9: the Tees Bay C disposal site. It is proposed that dredging is undertaken using a trailing suction

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:9: hopper dredger (TSHD) and a backhoe dredger.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:9:5.2 Alternative dredging plant

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:9:There is likely to be a requirement to utilise a number of different types of dredger depending on the nature

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:9:of the material being dredged. Therefore, for different parts of the dredging it will be necessary to use a

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:9:TSHD or backhoe. The environmental implications of using these dredgers have been assessed and no

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:10:5.3 Alternative dredge depths

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:10:The proposed dredged depth in the navigation channel has been chosen to maximise the tidal window to

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11: • Offshore disposal of dredged material.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11:The capital dredging of the river and the offshore disposal of dredged sediments both will cause plumes of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11:sediment to form. The plume effects arising from the river dredging are characterised by a short-lived

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11:dredging activity, followed by a general dispersion in spatial extent and reduction in concentration over

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11:following hours. Since the dredging is a near-continuous operation, the plume effects will be observed

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11:throughout much of the approximately four-month period, but at varying extents depending on the dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11:During operation of the new quay, the quay alignment and capital dredging of the river will not significantly

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11:capital dredging. There are no predicted changes in water level or wave conditions near the site or in the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:deposition rates and hence a requirement for more sediment to be dredged annually from this local reach.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:However, even under this scenario, the maintenance dredging from the reach local to the new quay will

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:make a very low overall contribution to the net annual maintenance dredging requirements from the estuary

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:as a whole. Therefore the potential increase in maintenance dredging requirement is not expected to be

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:significant and could easily be managed within existing maintenance dredging and offshore disposal

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:a result of the proposed dredge. However, on further consideration of the potential impact, the risk of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:Best practice measures would be adopted during the dredging process to minimise the potential for

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:resuspension of sediments. Such measures include dredging in long strips to ensure the plume is located

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:13:and capital dredging, increased suspended sediment concentrations and increased sediment deposition.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:13:with maintenance dredging. All operational phase impacts are predicted to be of negligible significance,

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:14:to marine mammals from dredging has been assessed as negligible. The assessment has concluded

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:14:Although there will be a small temporary increase in construction-related vessel traffic during dredging and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:15:Adverse impacts may be expected as a result of temporary increases in SSC during the capital dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:15:Alteration of subtidal habitat due to the proposed dredge is expected to be temporary and would be similar

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:15:to that already experienced through regular maintenance dredging that is already undertaken within the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:15:Based on the expected underwater noise levels associated with capital dredging activities, sound thresholds

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:15:will already be habituated to regular dredging noises within the estuary and a minor adverse impact is

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:16:fishing activity as a result of the proposed scheme. As the channel is dredged on an almost daily basis, the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:16:potential conflicts in the same way as routine dredging and other construction activities, through co-

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:16:ordination between STDC, the appointed Contractor and the Harbour Master. Management of dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:17:(dredging and construction of the new quay) are in keeping with the historic (and current) character of the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:17:previous dredging. Archaeological material may still survive, albeit fragmentary and dispersed, or potential

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:20:7.21 Offshore disposal of dredged material

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:20:It is proposed that all dredged material would be disposed of offshore at the Tees Bay C offshore disposal

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:20:Based on the findings of hydrodynamic and sedimentary plume modelling, the disposal of dredged material

MLA_2020_00506-Marine Coordinate Schedules-44.pdf:2:Tees Dock turning circle - dredge

MLA_2020_00506-Marine Coordinate Schedules-44.pdf:3:Channel and berth - dredge and excavation

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:15:In summary, the proposed scheme consists of demolition of the existing wharf and jetties, capital dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:16: • Dredging and offshore disposal of marine sediments.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:16:The proposed scheme (and consequently the dredging requirements) has been designed to avoid the pipe

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:33:Dredged sediment is proposed to be disposed offshore; this will be subject to a marine licence from the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:33:MMO. Should it be determined by the MMO’s advisors that the dredged sediment is not suitable for offshore

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:51: the ‘marine’ works comprise demolition of the existing timber wharf and jetties, capital dredging (to

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:51: disposal of dredged sediments and construction and operation of a new quay (to be set back into

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:51: dredging concept for the proposed scheme (the concept design for the proposed quay is ongoing,

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:52:and jetties, capital dredging (to deepen the Tees Dock turning circle and approach channel and to create

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:52:a berth pocket), offshore disposal of dredged sediments and construction and operation of a new quay (to

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:53: Dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:56: Benthic ecology It is advised that a habitat survey should occur within the dredge footprint to identify any important benthic habitats or species.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:56: The Tees has been subject to dredging in the recent past meaning the potential for archaeologically significant deposits or features to be impacted in

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:57: • Dredging of the River Tees;

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:57: The applicant should consider the methodology to be used, the disposal of dredged material, and the timing of works. Decisions should be underpinned

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:57: Dredging and disposal

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:58: The disposal site must be specified, ensuring that it has taken capital dredge material before, and can accept the total proposed amount of dredge

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:58: for disposal to sea (and to inform the impact assessment). Any material to be dredged and disposed of within licenced disposal areas at-sea must not

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:58: The MMO would support the consideration of using the dredged material for beneficial use. This could include recharge of intertidal areas elsewhere in

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:58: Specific information on the dredging and piling activities will be required, including the duration of works and anticipated working hours, the likely noise

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:58: The proposed works overlap with the Northern Gateway Terminal project. The applicant has estimated that the works will require a capital dredge of 2.5

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:58: million cubic metres (m3) of material. The applicant has stated that this will be reduced to 1.6 million m3 of capital dredge material if the works are carried

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:58: out alongside the Northern Gateway project (capital dredge of 4.5 million m3).

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:61:from the proposed dredging and disposal activity by coupling a sediment plume model built in MIKE21-MT

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:61:be run for the entire dredging period under astronomic tidal and daily mean fluvial flow conditions.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:61:(in particular the effect of resuspension and dispersion of sediment during dredging and disposal activities).

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:62:disturbance would be from dredging and vessel transits which are a regular occurrence in the Tees.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:62:Maintenance dredging is undertaken on a very regular throughout the Tees estuary and therefore

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:62:significant underwater noise disturbance effects are not anticipated due to the proposed capital dredge.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:65: 4.19. Offshore disposal of dredged material

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:65:offshore disposal of dredged material.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:65:The potential impact of the disposal of dredged material will be assessed in the context of Cefas records

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:65:dredged material from other consented projects.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:67:Appendix 1 Preliminary dredging concept for the current scheme being progressed by STDC

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: 3. ALL DREDGE SLOPES ARE ASSUMED TO BE 1:3. TO BE

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: 7. PROPOSED SCHEME AVOIDS DREDGING OVER THE

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: DREDGE DEPTH WILL NEED TO INCREASE BY THE

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: MAINTAINED DREDGE LEVEL -10.4mCD

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: DESIGN DREDGE LEVEL -11.0mCD

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: PRELIMINARY DREDGING

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: MAINTAINED DREDGE LEVEL -10.4mCD BM CF TJR

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: DESIGN DREDGE LEVEL -11.0mCD DATE SCALE REF.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:75: • Dredging of the River Tees,

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:76:limited by dredging within the immediate area of the proposed dock facilities. Archaeological review of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:76:whether these are situated within an area of proposed new dredging (either for construction or on-

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:79:jetties, capital dredging (to deepen the Tees Dock turning circle and approach

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:79:channel and to create a berth pocket), offshore disposal of dredged sediments and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:80: wharf and two jetties, capital dredging (to deepen the Tees Dock turning circle and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:80: approach channel and to create a berth pocket), offshore disposal of dredged

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:81: • capital dredging (to deepen the Tees Dock turning circle and approach

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:81: • offshore disposal of dredged sediments

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:85:existing Infrastructure (the dilapidated timber wharf and jetties), capital dredging within the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:85:estuary and offshore disposal of dredged material, construction of a combi-piled quay wall

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:133:5.4 Dredging Methodology and Schedule 53

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:133:5.4.1 Dredging Method 53

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:133:5.4.2 Dredging Schedule 54

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:133:5.5 Backhoe Dredging and Disposal Cycle 57

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:134:5.6 TSHD Dredging and Disposal Cycle 59

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:134:5.7.2 River Dredging 61

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:134:Table 5-1: Soil Types to be dredged 51

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:134:Table 5-2: Particle size distribution for dredged soil types 52

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:134:Table 5-3: Dredging Schedule Overview 55

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:136:Figure 5.1: Dredging Layout 53

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:136:Figure 5.2: South Bank Wharf Dredge Site and Tees Bay C Offshore Disposal Site 54

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:Figure 5.3: Sediment release schedule for dredger 56

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:Figure 5.5: Maximum enhanced suspended sediment concentrations arising from dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:Figure 5.6: Maximum enhanced suspended sediment concentrations arising from dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:Figure 5.7: Maximum enhanced suspended sediment concentrations arising from dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:Figure 5.8: Maximum enhanced suspended sediment concentrations arising from dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 65

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:from dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 66

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 67

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:from disposal activities during Stages 1 - 4 inclusive of the capital dredging programme 69

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 70

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:139: movement of suspended sediment from the proposed dredging and disposal activities by coupling with

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:139: 4-month dredging and disposal schedule.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:189: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:189: dredging.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:189: of sediment. In the main channel the deposition will require periodic dredging to maintain the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:190: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:191:investigate the suspended sediment transport effects of the proposed dredging of the channel and the berth

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:191:Available soil data indicates that it is expected that the dredging material consists of different soil types. A

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:191:summary of the expected dredging soil types based on the ground investigation data (Definitive Feasibility

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:191:between soft and hard material because it is expected to influence the choice of dredging equipment to be

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:191:Table 5-1: Soil Types to be dredged

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:192:Table 5-2: Particle size distribution for dredged soil types

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:192:The dredging layout for the South Bank dredging scope is shown in Figure 5.1. The river channel in front

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:192:of the South Bank Wharf as well as part of the Tees Dock Turning Area will be dredged to a level of -11mCD.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:192:The berth pocket in front of the new quay has a design bed level of -13.6mCD, but the dredge volumes

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:192:considered in the dispersion model include an extra two metres of dredge material down to a bed level of -

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:192:dredging schedule. Due to the uncertainty of the time when the dredging will take place, the worst scenario

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193: Figure 5.1: Dredging Layout

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193:5.4 Dredging Methodology and Schedule

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193:The dredging method, dredging schedule and details of the sediment release settings for the sediment

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193:5.4.1 Dredging Method

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193:The sediment will be dredged using two types of dredgers. The soft soil material below a depth of -5mCD

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193:will be dredged by using a Trailing Suction Hopper Dredger (TSHD), and a Backhoe Dredger (BHD) will be

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193:used to dredge material above this level. The hard soil material will also be dredged by the BHD because

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193:All dredged material will be taken to the “Tees Bay C” offshore disposal site which is approximately 18km

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194: Figure 5.2: South Bank Wharf Dredge Site and Tees Bay C Offshore Disposal Site

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:5.4.2 Dredging Schedule

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:The dredging schedule and quantity for the BHD and TSHD are described in Table 5-3. The dredging will

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:BHD working in parallel on dredging the soft soil material below the level of -5mCD, and then the BHD will

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:A total of 1.8 million m3 of bed material will be dredged over a period of 17weeks. The simulation covers the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:entire dredging period and the movement of dredgers and transport barges were tracked for the processes

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:of dredging, sailing, disposal and downtime for bad weather, refuelling, and equipment maintenance.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:Figure 5.3 and Figure 5.4 show the sediment release schedules for the dredgers at the South Bank Wharf

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:site and Tees Dock Turning Area, and at the offshore disposal site respectively. The dredging schedule will

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:start with the BHD dredging the soft material above -5mCD at South Bank Wharf for 3.7 weeks, followed by

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:the TSHD and BHD working in parallel dredging soft material below -5mCD which will take 3.7 weeks. Then

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:the BHD will start dredging the hard material at the site for 8.6 weeks. After this time the BHD and TSHD

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:will then be working in parallel again to dredge the material from the Tees Dock Turning Area which will take

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:0.7 weeks. This means that the whole dredging campaign will take 17 weeks to complete.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:The disposal schedule will follow the same pattern as the dredging schedule in that the barge filled by the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:195:Table 5-3: Dredging Schedule Overview

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:195:Dredge time (minutes) 75 123 123 286 75 123

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:195:Total dredging cycle time

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:195:Dredging volume (m3) 568,577 361,423 360,000 330,000 103,933 66,067

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:195:Dredging time (weeks) 3.7 3.7 3.7 8.6 0.7 0.7

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:196: Figure 5.3: Sediment release schedule for dredger

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:The following assumptions have been made for the simulation of sediment plumes arising from dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:At any one time at least one dredger, or for some of the dredging period two dredgers, are scheduled to be

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:in operation and will operate at full capacity. The dredgers will release material along a single line along the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:channel, the berth pocket and part of the Tees Dock Turning Area. At the offshore disposal site, the dredger

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:approach. The dredger will actually move around the dredging area and disposal site along multiple lines

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:5.5 Backhoe Dredging and Disposal Cycle

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:This section describes the backhoe dredge and disposal cycle for the different soil types and depth layers.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:The backhoe dredger will dredge 360,000 m3 of soft surface layer material above a level of -5mCD at the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:South Bank Wharf site. The dredger will operate continuously filling a barge, with two barges being in

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:operation sailing back and forth to the offshore disposal site. The dredger disperses sediment into the water

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:The backhoe will dredge for 123 minutes to load one barge, the barge will then sail for 60 minutes to the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:Once the backhoe dredger has removed the soft middle layer, the backhoe will dredge 361,423 m3 of soft

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:middle layer material below a level of -5mCD at the South Bank Wharf site. The dredger will operate

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:site. The dredger disperses sediment into the water column at a sediment release rate of 5.6 kg/s. The

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:The backhoe will dredge for 123 minutes to load one barge, the barge will then sail for 60 minutes to the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:Once the backhoe dredger and TSHD have removed the soft middle layer, the backhoe will dredge 330,000

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:m3 of hard bottom layer material at the South Bank Wharf site. The dredger will operate continuously filling

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:a barge, with two barges being in operation sailing back and forth to the offshore disposal site. The dredger

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:The backhoe will dredge for 286 minutes to load one barge, the barge will then sail for 60 minutes to the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:Once the backhoe dredger has at the South Bank Wharf site, the backhoe will dredge 66,067 m3 of soft

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:middle layer material below a level of -5mCD at the Tees Dock Turning Area. The dredger will operate

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:site. The dredger disperses sediment into the water column at a sediment release rate of 5.6 kg/s. The

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:The backhoe will dredge for 123 minutes to load one barge, the barge will then sail for 60 minutes to the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:dredge cycle takes 248 minutes.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:5.6 TSHD Dredging and Disposal Cycle

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:This section describes the TSHD dredge and disposal cycle for the different dredge locations.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:The TSHD will dredge 568,577m3 of soft middle layer material below a level of -5mCD at the South Bank

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:Wharf site. The dredger will operate for 75 minutes to load to full capacity, during which time it disperses

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:The TSHD will dredge for 75 minutes to load, then sail for 50 minutes to the disposal site, discharge for 10

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:site. The total dredge and transport cycle take 190 minutes.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:The TSHD will dredge 103,933m3 of soft middle layer material below a level of -5mCD at the Tees Dock

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:Turning Area. The dredger will operate for 75 minutes to load to full capacity, during which time it disperses

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:The TSHD will dredge for 75 minutes to load, then sail for 50 minutes to the disposal site, discharge for 10

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:site. The total dredge and transport cycle take 190 minutes.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200:The model simulations account for the movement of dredgers and transport barges (including dredging,

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200:the river dredging operations (except for allowed periods of downtime) from along the centre line of the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200:dredged areas, running along the axis of the river channel, and also on a periodic basis from a single point

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200:in the centre of the offshore disposal site. The overall river dredging, and offshore disposal operations may

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: 1. BHD working to dredge the upper soft material (above -5m CD) in the berthing pocket and river

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: 2. BHD and TSHD working in parallel to dredge the middle soft material (below -5m CD) in the berthing

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: 3. BHD working to dredge the bottom hard material in the berthing pocket and river channel

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: 4. BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200:Results from the sediment dispersion modelling are discussed in turn for the river dredging and offshore

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: (intervals) throughout the entire 4-month period covered by the dredging and disposal simulations

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: spatial extents of enhancement in SSC or deposition on the bed from any stage of the river dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: or offshore disposal operations during the relevant stage of the dredging programme. It is important

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: affected by a plume or deposition at some point during the 4-months of dredging or disposal

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201:5.7.2 River Dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201:end of the dredging transect to the north-eastern end.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201:(up to a few hundred mg/l) are confined to the release points along the dredging transect at the proposed

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201:development site. Further upstream and downstream of the areas directly dredged, the SSC enhancement

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201:drops markedly (typically below 50mg/l a short distance from the point of dredging, and at the peripheries

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201: Figure 5.5: Maximum enhanced suspended sediment concentrations arising from dredging activities

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201: during Stage 1 of the capital dredging programme

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:time, moving from the south-western end of each of two parallel dredging transects to the north-eastern

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:The maximum ‘zone of influence’ from Stage 2 of the dredging activities is shown in Figure 5.6. This shows

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:that during Stage 2 of the dredging, broadly similar patterns to those observed in Stage 1 are anticipated,

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:parallel dredging activities. Despite these subtle differences, maximum concentrations of SSC (up to a few

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:hundred mg/l) remain confined to the release points along the dredging transects at the proposed

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:development site. Further upstream and downstream of the areas directly dredged, the SSC enhancement

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:drops markedly (typically below 50mg/l a short distance from the point of dredging, and at the peripheries

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202: Figure 5.6: Maximum enhanced suspended sediment concentrations arising from dredging activities

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202: during Stage 2 of the capital dredging programme

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203:end of the dredging transect to the north-eastern end.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203:The maximum ‘zone of influence’ from Stage 3 of the dredging activities is shown in Figure 5.7. This shows

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203:that during Stage 3 of the dredging, the maximum plume extent and maximum SSC values within the plume

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203:are much lower than experienced during both Stage 1 and 2 of the dredging (note the slight plume shown

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203:in the mid channel is a remnant of the Stage 2 dredging, which has not fully dissipated before Stage 3

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203: Figure 5.7: Maximum enhanced suspended sediment concentrations arising from dredging activities

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203: during Stage 3 of the capital dredging programme

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204:end of each of two parallel dredging transects to the north-eastern end.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204:The maximum ‘zone of influence’ from Stage 4 of the dredging activities is shown in Figure 5.8. This shows

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204:that during Stage 4 of the dredging, the plume is created at the turning circle and along parts of the north

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204:dredging within the turning circle (up to a few hundred mg/l). Further upstream and downstream of the areas

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204:directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a short distance from the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204:point of dredging, and at the peripheries below 20mg/l) before merging with low background concentrations

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204: Figure 5.8: Maximum enhanced suspended sediment concentrations arising from dredging activities

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204: during Stage 4 of the capital dredging programme

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:205:The combined maximum ‘zone of influence’ from Stages 1 - 4 inclusive of the dredging activities has been

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:205:and that during the 4 months of dredging, all plume effects are confined to within the river reaches that

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:205:Furthermore, all plumes associated with dredging of the berthing pocket and river channel in the vicinity of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:205:plumes associated with dredging of the turning circle are confined to the left bank (north of centre line)

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:205: Figure 5.9: Maximum enhanced suspended sediment concentrations (near-bed layer) arising from dredging activities

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:205: during Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:206: Figure 5.10: Maximum enhanced suspended sediment concentrations (near-surface layer) arising from dredging activities

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:206: during Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:207:the plumes created by river dredging. It can be seen that much of the sediment falls to the bed within the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:207:dredged areas (from where it will be re-dredged to achieve the necessary bed depths), whilst the deposition

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:207: Figure 5.11: Maximum river bed thickness change due to sediment deposition arising from dredging activities during

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:207: Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:207:navigation, timeseries plots of changes throughout the dredging programme have been extracted from the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:208:licensed for the disposal of dredged sediment and is routinely monitored as part of a national programme.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:208:dredging programme has been plotted in Figure 5.12 for the near-bed layer of the water column. It should

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:209: during Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210: Figure 5.13: Maximum river bed thickness change due to sediment deposition arising from dredging activities during

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210: Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210:The river dredging and offshore disposal activities will both cause plumes of sediment to form close to the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210:During dredging, there will be release of sediment particles from the deliberate physical disturbance to the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210:river bed and, more significantly, from overflow when dredged material is loaded into the dredger’s hopper

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210:(for TSHD) or the transport barge (for BHD). Such releases will be ongoing through each dredging cycle

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210:until the dredging activity ceases due to downtime (e.g. adverse weather, vessel maintenance) or at

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210:scheduled breaks between stages of dredging activity. During offshore disposal, a single hopper load will

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210:Once a plume is generated, the highest SSC values will be recorded at the point of river dredging or offshore

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:During some stages of the dredging and disposal activities, most notably when both TSHD and BHD are

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:The plume effects arising from the river dredging are characterised by a short-lived localised increase in

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:SSC by a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial extent

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:and reduction in concentration over following hours. Since the dredging is a near-continuous operation, the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:different stages. During Stages 1-3 the dredging-related plume effects will be largely confined to the channel

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:During Stage 4 the dredging-related plume effects will be largely confined to the channel areas north of the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:than within the dredged areas, sediment deposition on the river bed will be of very minor magnitudes, in

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:at jetties, it will subsequently be dredged as part of ongoing maintenance dredging regimes, whilst material

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:deposited back into the newly dredged areas will be re-dredged during the capital works in order to achieve

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:Overall, the changes in SSC and sediment deposition arising from the river dredging and offshore disposal

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: 1.2. Capital dredging is anticipated to be required within part of the Tees Dock turning

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: The total dredge volume is predicted to be 1,960,000m3.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: 1.3. Two active disposal sites were identified that could potentially accept dredged

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: dredged material would be disposed of at Tees bay C (TY150) disposal site.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: 1.4. It is noted that a significant proportion of the proposed dredge volume is anticipated

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: Management of Dredged Material, samples should be taken to provide a good

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: representation of the volume of material to be dredged. The distribution and depth of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: sampling should reflect the size and depth of the area to be dredged, the amount to

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: be dredged and the expected variability in the horizontal and vertical distribution of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: 2.2. In consideration of the volume details of the proposed dredge, the MMO advises that

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: 25 sample sites will be required from across the dredge area to provide adequate

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:240: a maximum dredge depth as indicated on the sample plan form attached in

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:240: 2.4. If the maximum dredge depth exceeds the depth at which mudstone is located,

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:240: dredged and samples must be representative of the material to be dredged (see

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:240: 3.1. Details of recent sampling from within the dredge area were provided. This included

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:240: maintenance dredge and disposal licence (L/2015/00427/4). 10 surface samples

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:241: 2017, comprising of 37 surface samples within and adjacent to the proposed dredge

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:241: footprint for the NGCT. The proposed dredge footprint for NGCT marginally overlaps

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:241: majority of the NGCT dredge footprint is located downstream of the proposed survey

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:242: 5.3. Where long term licences for maintenance dredging will be applied for, additional

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:245:Stations should be evenly distributed across the dredge area

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: 3. ALL DREDGE SLOPES ARE ASSUMED TO BE 1:3. TO BE

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: 7. PROPOSED SCHEME AVOIDS DREDGING OVER THE

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: DREDGE DEPTH WILL NEED TO INCREASE BY THE

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: MAINTAINED DREDGE LEVEL -10.4mCD

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: DESIGN DREDGE LEVEL -11.0mCD

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: PRELIMINARY DREDGING

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: MAINTAINED DREDGE LEVEL -10.4mCD BM CF TJR

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: DESIGN DREDGE LEVEL -11.0mCD DATE SCALE REF.

MLA_2020_00506-RE_ South Bank Phase 1 Variation MLA_2020_00506_1 - SEAL advice_PDF_redacted_Redacted-65.pdf:2:dredge extension are different, so do we know how far the contaminated material from the

MLA_2020_00506-RE_ South Bank Phase 1 Variation MLA_2020_00506_1 - SEAL advice_PDF_redacted_Redacted-65.pdf:2:excluded area goes towards the centre of the channel where the dredge area is to be extended in

MLA_2020_00506-RE_ South Bank Phase 1 Variation MLA_2020_00506_1 - SEAL advice_PDF_redacted_Redacted-65.pdf:2:grabs and potentially closed bucket removal is within the PD Teesport maintenance dredge area

MLA_2020_00506-RE_ South Bank Phase 1 Variation MLA_2020_00506_1 - SEAL advice_PDF_redacted_Redacted-65.pdf:2:PD Teesport have stipulated on the river works licence that once the contaminated dredge area

MLA_2020_00506-RE_ South Bank Phase 1 Variation MLA_2020_00506_1 - SEAL advice_PDF_redacted_Redacted-65.pdf:2:has been dredged they must take surface grabs for samples within the area adjacent to the

MLA_2020_00506-RE_ South Bank Phase 1 Variation MLA_2020_00506_1 - SEAL advice_PDF_redacted_Redacted-65.pdf:2:dredged area to ensure there has been no movement of contaminated sediment into the

MLA_2020_00506-RE_ South Bank Phase 1 Variation MLA_2020_00506_1 - SEAL advice_PDF_redacted_Redacted-65.pdf:2:maintenance dredge area.

MLA_2020_00506-RE_ South Bank Phase 1 Variation MLA_2020_00506_1 - SEAL advice_PDF_redacted_Redacted-65.pdf:3:For me the area to be dredged looks to be adjacent to an area for exclusion- without samples if it

MLA_2020_00506-RE_ South Bank Phase 1 Variation MLA_2020_00506_1 - SEAL advice_PDF_redacted_Redacted-65.pdf:3:is a capital dredge (going deeper than the maintenance dredging/or not dredged in over ten

MLA_2020_00506-RE_ South Bank Phase 1 Variation MLA_2020_00506_1 - SEAL advice_PDF_redacted_Redacted-65.pdf:3:for disposal to sea? Particularly between the area from the red line of the dredge to the edge of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:133: o Forty-one-week dredging campaign of the channel, turning area and berthing pockets.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:136:Table 3: Estimated Construction Vessel Movements and Dredge Volumes……………………………………. 6

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:136:Table 5: Construction Phase Dredging Vessel Movements ………………………………………………………….. 8

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:138: BHD Backhoe Dredger

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:138: EGD Enclosed Grab Dredger

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:138: TSHD Trailing Suction Hopper Dredger

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:139:The construction phase requires dredging of the Tees Dock Turning Area the Navigable Channel

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:140: PC1084-RHD-SB-DN-RP-ME-1353_P01_Dredging Study.pdf

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:140: PC1084-RHD-SB-DN-DR-C-1381_P01 Dredging Plan.pdf Concept Design Dredging Plan

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:140: including dredging and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:142:The proposed South Tees development project and associated dredging areas are shown within Figure

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144: o Dredging of the; turning area, berthing pocket and adjacent approach channel (Figure

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144:The primary activity associated with the construction phase is the dredge campaign which will include

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144:the dredging of a section of the River Tees approach channel and turning area to depths of -11m CD

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144:and a berthing pocket of -15.6m CD (see Figure 1). The dredge campaign will utilise an Enclosed Grab

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144:Dredger (EGD), a Backhoe Dredger (BHD) and a Trailing Suction Hopper Dredger (TSHD) each

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144:supported by two barges. The estimated duration, number of movements and dredge volumes are

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144:Table 3: Estimated Construction Vessel Movements and Dredge Volumes

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144: Total Dredge Volume

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144: Dredging Phase Phase

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:145:dredging campaign will commence which is scheduled to run for 41 weeks as shown in Table 5 (Phase

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:145:1 for 18 weeks, Phase 2 for 23 weeks). Phase 2 dredging is scheduled to commence approximately 24

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:145:weeks after completion of Phase 1 dredging.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:145:Soft and hard materials will be loaded into barges at the dredge site and then transported to licensed

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:146:Table 5: Construction Phase Dredging Vessel Movements

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:146: THSD Dredging/Disposal 0 0 0 0 0 0 0 66 66 66 66 66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 66 66 66 66 66 66 66 0 0 0 0 0 0 0

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:146:*Phase 2 dredging to commence approximately 24 weeks after completion of Phase 1 dredging.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:150: Including; project and port dredgers, tugs, pilot boats, workboats, PD Ports

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:155:channel dredged to 10.4m.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:161: Dredger

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:169: Initially conceived in 2000. Container terminal dredged to 15m berth pocket.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:170: phase if the dredgers are very large.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:170: Post dredge surveys and Charts to be updated to include new berths and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:170: promulgation. berthing pockets and in-channel dredge depths.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:170: C&O Hold regular meetings with dredge contractors

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:170: 5 during dredging operations. Issue Notice To

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: 21 Contact Contact berth - Tanker 5.10 35 Grounding Grounding - Workboat (Including Dredgers) 2.07

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: Collision - Workboat (Including Dredgers) ICW Workboat Incident 1.81

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: (Including Dredgers) 4.07 39 Mooring Incident - General Cargo vessel

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: 3 Collision Collision - Tanker ICW Workboat (Including Dredgers) 3.79 Contact - Workboat (Including Dredgers) with Navigation

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: Dredgers) 3.79

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: Dredgers) 3.53 40 Mooring Incident - Workboat (Including Dredgers)

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: Collision - Workboat (Including Dredgers) ICW Project Incident 1.31

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: 23 Contact Contact berth - Workboat (Including Dredgers) 3.16 Incident 1.26

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: 43 Foundering Foundering / Swamping - Workboat (Including Dredgers) 2.38

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: Collision - Workboat (Including Dredgers) ICW

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:178:operation phase followed by workboats, driven by an increase in frequency of dredgers in the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: • Project layout, navigation chart and vessel movement / dredge schedule

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: Dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: • 3-week berth dredge will require pilotage. The vessels utilised for the rest

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: of the dredging campaign will not require pilotage. Windfarm/ heavy lift

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: • Dredge to 23-buoy would allow 11m draught vessels to manoeuvre. The

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: existing dredge plan would not allow deep draught vessels to manoeuvre

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: • It was questioned whether the turning circle would be dredged? If the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: need to be dredged. The turning circle is currently dredged to 8.8m. If

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: the turning circle is not dredged the existing Teesport regulations will

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:196: the previous dredging campaign undertaken within the river. It was

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:196: sometimes difficult to get the hopper dredgers to move out of the way,

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:196: risk area. This will be particularly important if the dredgers are very large.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:196: on board the dredgers and construction vessels.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:196: within the channel dredging will increase water depths, and existing

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:196: turning circle at its current dredge levels.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:198: • Project layout, navigation chart and vessel movement / dredge

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:198: pipelines), the South Tees Linklines, lies under the dredge area at the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:198: • Potential for collision between construction vessels / dredgers

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:198: • Risk of damaging pipeline during dredging operations.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:199: • Flagged as an additional consideration as proposed dredging in

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:200: • Dredging / construction phase and post-works operation phase to

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:200: Dredging programme discussed.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:200: manageable. Recent experience of dredging showed that VTS

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:200: development site is a SSSI and the dredge comes very close to the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:200: • Channel dredge goes over the top of two pipeline tunnels, depth

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:200: dredging.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:201: • Initially conceived in 2000. Container terminal dredged to 15m

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:201: • Dredger should show RAM shapes / lights.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:201: dredger while loading.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:201: following dredging.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:202: • Hold regular meetings with dredge contractors during dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:202: pilotage would be required for the suction dredger works.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:203: • Project layout, navigation chart and vessel movement / dredge schedule

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:203: dredging in the Tees dock.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:203: (such as channel dredging) cause operational delays (for example at the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:204: • Project layout, navigation chart and vessel movement / dredge schedule

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:204: • No change (risk should decrease following dredging).

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:205: • Svitzer questioned if any of the river would be shut -off during dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:207: Tanker dredging operations. spillage or small gas release

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:207: dredging operations.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:207: vessel / dredging declared but criteria not Moderate damage to property;

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:207: operations / dredging necessarily met; Very No effect of note. Tier 1 may

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:207: Dredgers) Dredgers)

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:208: dredging operations. not necessarily met; Very

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:208: Collision - Tanker vessel / dredging to property; No effect of property; No effect of note.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:208: ICW General General Cargo dredging operations. declared but criteria not within site; Adverse

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:209: Cargo Vessel vessel / dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:209: Dredgers) necessarily met; Very Adverse regional publicity.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:209: Dredgers) and disembarkation

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:209: ICW Project dredging operations. not necessarily met; Very Adverse international publicity.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:209: General vessel / dredging to property; No effect of property; No effect of note.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: (Including Dredgers)

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: Dredgers) collides with

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: 10 River Collision vessel / dredging be declared but criteria Tier 1 may be declared but 2 1 1 1 5.0 3 3 1 1 4.0 4.07

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: Dredgers) Dredgers)

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: vessel / dredging to property; No effect of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: (Including Dredgers) operational (oil) spill with little

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: Dredgers) collides with a effect on environmental

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: Workboat vessel / dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: Dredgers) note. Tier 1 may be Tier 1 may be declared but

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: 12 River Collision Dredgers) control failure. Reduced 2 2 1 1 2.0 4 3 1 2 1.0 2.24

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:211: vessel / dredging property; No effect of property; No effect of note.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:211: Collision - Recreational dredging operations.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:212: dredging operations. Fire services with ensuing loss

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:212: channel dredging operations. Fire services with ensuing loss

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:212: Dredgers) property; No effect of note.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:212: 18 River Contact Dredgers) Reduced visibility. Result declared but criteria not 2 1 1 1 4.0 1 2 1 1 2.0 1.67

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:212: Buoy dredging operations. Fire services with ensuing loss

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:213: channel dredging operations. Fire services with ensuing loss

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:213: dredging operations. Fire

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:213: dredging operations. Fire Very short-term disruption prolonged restrictions, major

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:214: dredging operations. Fire suspension of commercial

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:214: 23 River Contact Workboat Dredgers) 1 2 1 1 5.0 2 2 1 1 4.0 3.16

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:214: Dredgers) berth

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:214: dredging operations. Fire short-term disruption to services with ensuing loss of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:214: dredging operations. Fire term loss of revenue including

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:215: dredging operations. Fire short-term disruption to services with ensuing loss of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:215: dredging operations. Fire prolonged restrictions, major

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:215: dredging operations. Fire prolonged restrictions, major

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:216: alongside Dredgers) note. Tier 1 may be

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:216: dredging operations. Fire services with ensuing loss of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:216: Dredgers) berth services with ensuing loss

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:216: dredging operations. Fire services with ensuing loss revenue including minor

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:216: Vessel berth dredging operations. Fire services with ensuing loss of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:217: dredging operations.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:217: dredging operations.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:217: dredging operations. Fire

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:218: dredging operations. Fire prolonged restrictions, and/or

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:218: (Including Dredgers) of avoiding action with declared but criteria not criteria not necessarily met;

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:218: Dredgers) runs aground 3rd party vessel / necessarily met; Very Very short-term disruption to

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:218: dredging operations. Fire short-term disruption to services with ensuing loss of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:218: dredging operations. Fire prolonged restrictions, and/or

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:219: dredging operations. Fire short-term disruption to services with ensuing loss of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:220: Incident - Dredgers) is effect of note. Tier 1 may Minor damage to property; No

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:220: Dredgers) from its short-term disruption to necessarily met; Very short-

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:221: Dredgers) effect of note. Tier 1 may

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:221: (Including vessel / dredging be declared but criteria not

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:221: Dredgers) operations. Excessive necessarily met; Very short-

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:221: swamped by a vessel / dredging be declared but criteria not

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:239: another Tanker party vessel / dredging national support. Chemical spillage or small

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:239: General Cargo General Cargo Vessel party vessel / dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:240: party vessel / dredging injuries or single fatality; Moderate damage

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:240: operations / dredging to property; No effect of note. Tier 1 may be

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:240: (Including Dredgers) be declared but criteria not

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:240: Dredgers) necessarily met; Very short-

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:240: Project Cargo move party vessel / dredging criteria not necessarily met; gas release (COMAH); Adverse international

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:240: party vessel / dredging injuries or single fatality; Moderate damage

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:241: party vessel / dredging may be declared but criteria

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:241: party vessel / dredging Very minor damage to

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:241: (Including Dredgers) necessarily met; Adverse regional publicity.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:241: Dredgers) Temporary suspension of commercial

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:241: Vessel ICW party vessel / dredging criteria not necessarily met; Adverse international publicity. Long-term

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: Collision - party vessel / dredging injuries or single fatality; Moderate damage

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: (Including Dredgers) collides Result of avoiding action note. Tier 1 may be

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: 10 River Collision Dredgers) ICW with another with 3rd party vessel / declared but criteria not 2 1 1 1 5.0 3 3 1 1 4.0 4.07

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: Workboat Workboat (Including dredging operations. Traffic necessarily met; Very short-

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: (Including Dredgers) control failure. Reduced term disruption to services

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: Dredgers) visibility. Fire and explosion. with ensuing loss of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: Workboat party vessel / dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: Dredgers) collides effect of note. Tier 1 may criteria reached. Small operational (oil) spill

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: Dredgers) ICW failure. Reduced visibility.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:243: Workboat Workboat (Including dredging operations. Traffic

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:243: (Including Dredgers) collides control failure. Reduced

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:243: Dredgers) ICW with a Recreational visibility. Sailing vessel

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:243: Collision - party vessel / dredging injury; Minor damage to injuries or single fatality; Moderate damage

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:243: party vessel / dredging injury; Very minor damage

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:244: dredging operations. Fire

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:244: dredging operations. Fire

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:244: (Including (Including Dredgers) Minor damage to property; No effect of note.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:244: 18 River Contact Dredgers) contacts a Tier 1 may be declared but criteria not 2 1 1 1 4.0 1 2 1 1 2.0 1.67

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:244: dredging operations. Fire to services with ensuing loss

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:245: dredging operations. Fire

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:245: Buoy dredging operations. Fire term disruption to services

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:245: dredging operations. Fire Very short-term disruption restrictions, major disruption to commercial

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:246: dredging operations. Fire

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:246: 23 River Contact (Including Dredgers) Result of avoiding action may be declared but criteria 1 2 1 1 5.0 2 2 1 1 4.0 3.16

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:246: Dredgers) disruption to services with ensuing loss of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:246: dredging operations. Fire short-term disruption to

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:246: dredging operations. Fire including minor disruption to commercial

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:247: dredging operations. Fire Very short-term disruption services with ensuing loss of revenue.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:247: dredging operations. Fire Very short-term disruption

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:247: dredging operations. Fire Very short-term disruption

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:248: berth - (Including Dredgers) may be declared but criteria

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:248: dredging operations. Fire with ensuing loss of revenue.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:248: Dredgers) services with ensuing loss of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:248: dredging operations. Fire

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:248: Vessel dredging operations. Fire term disruption to services with ensuing loss of revenue.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:249: dredging operations. inspection.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:249: dredging operations. inspection.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:249: dredging operations. Fire operations, prolonged restrictions, and/or

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:250: dredging operations. Fire

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:250: 35 River Grounding (Including Dredgers) Result of avoiding action note. Tier 1 may be declared but criteria not 1 1 1 1 5.0 2 3 1 1 4.0 2.07

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:250: Dredgers) necessarily met; Very short-

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:250: dredging operations. Fire services with ensuing loss of revenue.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:250: dredging operations. Fire

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:251: dredging operations. Fire services with ensuing loss of revenue.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:252: Incident - (Including Dredgers) keeping. Extreme weather. effect of note. Tier 1 may

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:252: Dredgers) mooring vessel moving in the port term disruption to services

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:253: Swamping - (Including Dredgers) / PEC holder error. Result of fatality; Moderate damage to property; No

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:253: (Including swamped by a party vessel / dredging criteria not necessarily met; Very short-term

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:253: Dredgers) passing vessel operations. Excessive speed. disruption to services with ensuing loss of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:253: party vessel / dredging criteria not necessarily met; Very short-term

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:271: substation), capital dredging (to deepen the northern half of the Tees Dock turning circle, a section

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:271: of the existing approach channel and to create a berth pocket), offshore disposal of dredged

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:272: Turning Area Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:280: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:282: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:286: the 110 employees, 10 would be associated with offshore dredging and would therefore not travel

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:287:Dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:287:Dredging 20 4 By sea 0 0 0 0

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:350: • capital dredging (to locally deepen the Tees Dock turning circle and approach channel and to create

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:350: • offshore disposal of dredged sediments; and,

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387:Table A2 Output of WFD scoping for activity C2 Capital dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387:Could significantly impact the hydromorphology of any Yes, capital dredging could potentially alter hydromorphological parameters in the water

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387: The area to be impacted by dredging equates to 350,000m2 (0.32km2) which when

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387:Is within 500m of any higher sensitivity habitat and consideration of the type of habitat to be disturbed/removed by the capital dredge is

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387:outside the estuary but could delay or prevent fish There is the possibility of sediment plumes during the dredging works. Possibility of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387:entering it or could affect fish migrating through the underwater noise during dredging impacting on fish is scoped out due to evidence provided

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387:Could impact on normal fish behaviour like movement, only) less than 20m from the dredger. It is considered unlikely that fish would remain within the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387: Regular maintenance dredging undertaken within the proposed dredge footprint on a year-

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387: the risk of direct uptake of eggs during the capital dredge (See Section 13).

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:388: There is the possibility of sediment plumes during the dredging works

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:399:Table B2 Completed Scoping Tables for Activity: C2 Capital dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:399: Qualitative status Quantitative Dependent Surface Water Body No Capital dredging would not impact on

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:399: Chemical Chemical Dependent Surface Water Body No Capital dredging would not impact on

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:400: Supporting elements Prevent and limit objectives No Capital dredging would not impact on

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:1:Application (Disposal of dredged material, Navigational dredging (capital), Other deposits,

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:1:  Cross-sectional channel dredge information and side slope analysis, particularly in relation to

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:1:  Impacts to waterbird interest features at North Tees Mudflat from dredging works; and

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:3:Capital dredging the assumed side slopes to be created as part of the proposed dredge, no direct

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:3: the proposed dredge. Natural England requires more detailed reassurance that

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:3: the capital dredge immediately adjacent to the North Tees Mudflat will not impact

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:3: increased risk of slumping. This includes the implications of the capital dredge

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:4:Capital dredging dredging in front of the new quay. It is stated within the EIA that the complete loss

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:4:General: barrier We welcome the commitment to limit TSHD and backhoe dredging to working

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:4: Dredging must be limited to working on one side of the estuary channel at a time.

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:5: 12.5.2 We welcome the commitment to limit TSHD and backhoe dredging to working

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:6:dredging. to tern foraging within the estuary channel.

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:6: Dredging must be limited to working on one side of the estuary channel at a time.

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:6:12.5.4 At present, the effects of visual and noise disturbance to waterbirds from dredging

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:6: To assess whether there should be a seasonal and/or tidal restriction to dredging

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:6: to the likely duration of dredging activities (particularly TSHD) occurring within

MLA_2020_00506-NE formal response to SBW MLA, 29.01.21 (1)-12.pdf:8:  Tees navigational channel deepening (maintenance dredge);

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:3:3.2.1 Direct loss of habitat due to capital dredging 23

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:3:3.2.2 Effects of increased suspended sediment concentrations during dredging on marine species and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:3:3.2.3 Effects of smothering following dredging on marine species and habitats 24

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:5:proposed scheme comprises demolition, capital dredging, offshore disposal of dredged material and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:6:recovered from 25 sampling stations across the proposed dredge footprint (Figure 2.1). Samples were

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:6:intervals to the maximum proposed dredge depth. Where the maximum proposed dredge depth exceeded

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:7: # VC-05 Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:11:to sea and that an enclosed grab or similar is used to dredge such material from this location to minimise

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:11:of sediment as the material is dredged. The results from this borehole (BH34) have therefore been excluded

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:11:concentrations across the rest of the proposed dredge footprint and the proposed means of dredging using

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:11:is elevated across the proposed dredge footprint, but the majority of exceedances are marginal only.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:11:organotin concentrations across the proposed dredge footprint do not exceed Action Level 1 (with many

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:12:locally in other samples from across the proposed dredge footprint (although none were present within the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:12:The marine elements of the proposed scheme (excluding offshore disposal of dredged material) are located

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:13:sediment losses from dredging equipment and concentrations of contaminants within the sediments to be

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:13:dredged to provide an indication of the amount of contamination that could be released into the water

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:13:solids released as a result of the proposed dredge to define the scale of water quality effects. It should be

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:14:The tool requires the input of predicted suspended solids concentrations arising from the dredge plume. For

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:14:levels of suspended solids over baseline during Stage 2 of the proposed dredging schedule, when the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:14:backhoe dredger and trailing suction hopper dredger would be working in parallel to dredge soft material

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:14:below -5m Chart Datum (CD) in the berth pocket and river channel. Stage 2 of the proposed dredge is

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:15:Figure 2.2 Stage 2 dredging results for suspended solids concentrations when dredger is located on the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:15:south-western dredging transect (taken from Section 6.5 of the EIA, Royal HaskoningDHV, 2020)

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:16:proposed dredge. For the organic parameters, the results indicate that for benzobfluoranthene, when

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:16:to be relatively localised to the dredging activity and suspended sediment concentrations reduce to typically

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:16:dredge situation) and therefore there is no headroom 2 for additional sources of this parameter.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:17:dredging.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:17:there is a possibility that some PAH parameters could exceed their respective EQS during capital dredging.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:17:concentrations of suspended solids; rather, they are predicted to remain in close proximity to the dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:17:of the total volume of dredged material comprises geological material (i.e. mudstone) which contains much

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:17:lower levels of contaminants, therefore the risk to EQS is only during dredging of the finer sediments in the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:17:An enclosed grab is proposed to dredge material in the vicinity of BH34 given the elevated concentrations

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:17:release of sediment as the material is dredged. No further mitigation measures are required. The residual

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:18:proposed dredge footprint. The least species-rich sample was GS12 with 19 species recorded; this sample

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:19: CS_06 Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:20:with individual worms noted at GS25 and GS26 (both upstream of the proposed dredge footprint) and 23

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:20:individuals at site GS14 (within the upstream end of the proposed dredge footprint).

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:21:within and adjacent to the proposed dredge footprint. Species recorded were from the taxonomic groups

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:21:dredge footprint at Tees Dock turning circle; this recorded 20 species (excluding fish). This trawl was also

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:24:and capital dredging, effects from increased suspended sediment concentrations, and effects from

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:25: loss of habitat due to capital dredging”

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:25: concentrations during dredging on marine dredging on marine species and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:26: loss of habitat due to capital dredging”

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:26: concentrations during dredging on marine dredging on marine species and

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:27:3.2.1 Direct loss of habitat due to capital dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:27:pressures related to capital dredging, linked to habitat loss and disturbance (which is the same as the

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:27:loss caused by capital dredging would be of minor adverse significance.

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:27:3.2.2 Effects of increased suspended sediment concentrations during dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:27:suspended sediment during dredging is expected to be in the form of a narrow plume within the river, which

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:27:is localised and short-lived. The proposed dredging activity is not expected to cause an increase in

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:28:3.2.3 Effects of smothering following dredging on marine species and habitats

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:29:In terms of mitigation, the footprint of the dredge will be kept to what is absolutely necessary, in order to

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:30:circle and the upstream end of the proposed dredge footprint, at the locations marked BT01 to BT05 in

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:32: Proposed Dredge and Excavation Envelope

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:34: temporarily relocate due to the presence / noise of the dredge head, minimising the risk of entrainment. The

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:34:from dredging and (dredging); (dredging); negligible (dredging); negligible 4.2 and 4.3 confirms that the dominant species present in the Tees estuary remain unchanged to those reported

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:42:dredging / Minor adverse Minor adverse Minor adverse

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:45:exceedances to only short periods of time and are likely to be contained within the vicinity of the dredging

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:45:deterioration in species composition and numbers following dredging, it is predicted that the sediment

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:47:completion of the additional assessment is use of an enclosed grab to dredge material in the vicinity of BH34

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:221: Levels for the disposal of dredged material are non-statutory guidelines for assessment of

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:221: disposal of dredged materials at sea, against which reported contaminant concentrations

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:221: concern, whilst concentrations above Cefas Action Level 2 (AL2) indicate that dredged

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:311: physical disturbance from anthropogenic activities such as canalisation and dredging, which

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:312: industrial and municipal waste (e.g. sewage and dredged spoils), as well as urban and river

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:320: muddy substrates of dredged rivers (Blake, 1971), from Japan in mud deposits with other

MLA_2020_00506-PC1084-RHD-ZZ-XX-RP-Z-1115_South Bank Quay supplementary report-31.pdf:324: issues in Seaton Channel, Holding basin, Dry Dock and Quays (dredge areas 1 to 4). A report to

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:1:Tees Freeport Dredging Licence granted by the MMO

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:1:Tees Freeport Dredging Licence Variation reference:

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:1:OBJECTION TO THE DREDGING LICENCE APPLICATION -

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:1:231,000m3 of dredged material to be disposed offshore

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:1:the demolition of existing structures, capital dredging of a

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:1:new turning circle, capital dredging of the channel and

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:2:dredging methodology, dredge depths, dredge areas and

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:2:proposed increase to the capital dredge and disposal

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:2:Results are too high to Consider the Dredge Being

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:2:Life, OCCURING since the Freeport Dredge began 1st

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:3:in the Licence dredge and variation areas, sampled in

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:3:is considered, and before further dredging in the Licence

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:3:continues. Then the variation, then the Licence Dredge,

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:4:caused by TOXIC dredging being dumped at sea,

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:4:beginning at the Exact time of the ORCA Dredge

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:4:variation Application ( Or Freeport Dredge Licence)

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:4:TOXIC dredging being dumped at sea, - *beginning at the

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:4:Exact time of the ORCA Dredge beginning.

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:4:Method Statement, (Or Freeport Dredge Licence) of the

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:4:by TOXIC dredging being dumped at sea, beginning at the

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:4:Exact time of the ORCA Dredge beginning.

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:4:Dredge Licence) of the ‘Die Off Incident, or the Potential to

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:5:have been caused by TOXIC dredging from the Tees, being

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:5:ORCA Dredge beginning.

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:5:Freeport Dredge Licence) Application, if the potential that

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:5:the Dredge Material, contains Harmful substances not

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:5:period from the ORCA Dredge onwards

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:5:11a- ‘The MMO must urgently review the dredging activity

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:5:with Capital and Maintenance Dredging’

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:5:Including- ‘where and how dredged material is disposed of’

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:6:approval process. We also believe that all dredged material

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:6:taking a precautionary measure on dredging, before even

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:6:Die off’s from the Orca Dredge exact time, onwards:-

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:7:The Orca dredged 148.000 tonnes of toxic sdediment, from 25th

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:9:Since the Uncontained Freeport Dredge began 1st

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:9:On the side of caution, Capital dredging should be stopped

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:9:Freeport Dredge began 1st September 2022:-

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:16:off evidence since the Freeport dredge began

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:16: Lobsters dying big time again, since the Freeport dredge started, Merchant

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:16:regularly again, since the Freeport dredge began!

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:17:Freeport dredge began. Fw: Dead scallops

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:17:happening since the Freeport dredge began, @ 1st September 22,

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:17:Don't blame algae, this is happening from the time of the Freeport dredge

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:17:The Capital Dredge and VARIATION needs putting on hold, our Industry,

MLA_2020_00506-MMO VARIATION OBJECTION_S_Rennie.pdf:17:disappearing totally, because of dredging.

R-2021-0830-CD-63262_01 - Biodiversity Strategy IB - Sept 2021.PDF:11: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0830-CD-63262_01 - Biodiversity Strategy IB - Sept 2021.PDF:11: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0830-CD-63262 - Covering Letter - 29.09.21.pdf:2:“Demolition of existing redundant quay structures, capital dredging and development of new quay and

R-2021-0830-CD-ApplicationFormRedacted.pdf:2:DEMOLITION OF EXISTING REDUNDANT QUAY STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND ASSOCIATED

R-2021-0830-CD-Teesworks Environment and Biodiversity Strategy - Sept 2021.pdf:11: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0830-CD-Teesworks Environment and Biodiversity Strategy - Sept 2021.pdf:11: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0830-CD-DECISION NOTICE 0684.pdf:1: CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND

R-2021-0830-CD-DECISION NOTICE 0684.pdf:1: PC1084-RHD-SB-EN-DR-EVC-1113_P01 Dredging Plan received by the LPA on

R-2021-0830-CD-370819 393380 393440 R_2021_0830_CD R_2021_0831_CD R_2021_0832_CD - Discharge of conditoins relating to Environment and Biodiversity Strategy Teesworks Redcar_.pdf:1:existing redundant quay structures, capital dredging and new quay and associated works

R-2021-0830-CD-63262 - Teesworks Environment and Biodiversity Strategy May 2022.PDF:12: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0830-CD-63262 - Teesworks Environment and Biodiversity Strategy May 2022.PDF:12: ESM Bank Wharf, quay structures, capital dredging and

R-2021-1096-CD-TW-SIZ-XX-JBAU-SB-00-DR-C-0004-A1-C02-South_Bank_General_Arrangement_Inner_Tidal_Channel.pdf:1: EXTENT OF QUAY DREDGE POCKET

R-2021-1096-CD-TW-SIZ-XX-JBAU-SB-00-DR-C-0004-A1-C02-South_Bank_General_Arrangement_Inner_Tidal_Channel.pdf:1: DREDGE POCKET

CHK-JBAU-00-00-RP-EN-0001-S3-P02-South_Bank_WFD_Report.pdf:83:two weeks. No indications of dredging but

MLA_2022_00248-APPLICATION-FORM.pdf:9:process for dredging?

MLA_2022_00248-APPLICATION-FORM.pdf:9:The accelerated licensing process applies to certain types of small-scale low-risk dredging activity.

MLA_2022_00248-APPLICATION-FORM.pdf:10: Dredging at RiverA. Create one site for RiverA and add dredging as an activity.

MLA_2022_00248-APPLICATION-FORM.pdf:10: Dredging and quay wall improvements at RiverA. Create 2 locations: one for the

MLA_2022_00248-APPLICATION-FORM.pdf:10: dredging in front of the new quay area and one for the quay wall improvements.

MLA_2022_00248-APPLICATION-FORM.pdf:10: Dredging at RiverA and removal of large concrete block within the dredge area.

MLA_2022_00248-APPLICATION-FORM.pdf:10: dredging.

MLA_2022_00248-APPLICATION-FORM.pdf:14:development and River Tees dredging activities. There may be residual risk of sediment

MLA_2022_00248-APPLICATION-FORM.pdf:14:ongoing dredging activities within the Tees River, the residual risks from the reprofiling

MLA_2022_00248-APPLICATION-FORM.pdf:18:Dredging & disposal

MLA_2022_00248-APPLICATION-FORM.pdf:18:Policy is not relevant to the scheme: Works do not involve the disposal of dredged

R-2022-0231-FF-TW-SIZ-XX-JBAU-SB-00-DR-C-0004-A1-C03-South_Bank_General_Arrangement_Inter_Tidal_Channel.pdf:1: 0203 EXTENT OF QUAY DREDGE POCKET

R-2022-0231-FF-TW-SIZ-XX-JBAU-SB-00-DR-C-0004-A1-C03-South_Bank_General_Arrangement_Inter_Tidal_Channel.pdf:1: DREDGE POCKET

R-2023-0246-RMM-TV_ERF_Shadow_HRA.pdf:74:land-claim, construction of breakwaters and training walls, and deep dredging. The remaining

R-2023-0246-RMM-TV_ERF_EIA_SoC_Part_1of2.pdf:88: capital dredging and development of new quay Cleveland dust emissions. Due to distance between TV ERF

R-2021-0832-CD-63262 - Covering Letter - 29.09.21.pdf:2:“Demolition of existing redundant quay structures, capital dredging and development of new quay and

R-2021-0832-CD-Teesworks Environment and Biodiversity Strategy - Sept 2021.pdf:11: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0832-CD-Teesworks Environment and Biodiversity Strategy - Sept 2021.pdf:11: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0832-CD-63262_01 - Biodiversity Strategy IB - Sept 2021.PDF:11: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0832-CD-63262_01 - Biodiversity Strategy IB - Sept 2021.PDF:11: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0832-CD-63262 - Teesworks Environment and Biodiversity Strategy May 2022.PDF:12: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0832-CD-63262 - Teesworks Environment and Biodiversity Strategy May 2022.PDF:12: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0832-CD-370819 393380 393440 R_2021_0830_CD R_2021_0831_CD R_2021_0832_CD - Discharge of conditoins relating to Environment and Biodiversity Strategy Teesworks Redcar_.pdf:1:existing redundant quay structures, capital dredging and new quay and associated works

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:1: • Dredging;

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:1: • Capital dredging (removal activity).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:1: • Offshore disposal of dredged material (deposit activity).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:1:The proposed dredge footprint is located predominantly within an area subject to maintenance dredging by

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:1:of the existing maintenance dredge footprint, and therefore a variation to the licence held by PDT is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:1:envisaged to increase the source area of maintenance dredged material following construction of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:4:Options for the disposal of waste (i.e. the material to be dredged from the approach channel, turning circle

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:4:investigated in accordance with the waste hierarchy. Possible alternative options for dredged material have

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:5: • Policy NE-DD-3 – proposals for the disposal of dredged material must demonstrate that they have

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_17. Noise and vibration.pdf:6: Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_17. Noise and vibration.pdf:12: • Dredging; and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_17. Noise and vibration.pdf:14: Dredging THSD/backhoe 1 C7.2 60 110.3

R-2020-0685-ESM-ApplicationFormRedacted.pdf:2:Demolition of existing redundant quay structures, capital dredging and development of new quay and associated works (Phase 2).

R-2020-0685-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: AREA DREDGED

R-2020-0685-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: DREDGE TO -11.0mCD

R-2020-0685-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: DREDGE TO -15.6mCD

R-2020-0685-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: DREDGED TO -11mCD MUDFLATS

R-2020-0685-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: AREA DREDGED S3

R-2020-0685-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: AREA DREDGED

R-2020-0685-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: DREDGED TO -11mCD

R-2020-0685-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: PHASE 1 UPSTREAM AREA DREDGED

R-2020-0685-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: AREA DREDGED

R-2020-0685-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: DREDGING PLAN

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:3:5.2 Alternative dredging plant 5

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:3:5.3 Alternative dredge depths 6

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:4:7.21 Offshore disposal of dredged material 16

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:5:In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of dredged

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:5:1113 shows the proposed dredge (and excavation in front of the proposed quay wall) footprint.

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:6: BERTH POCKET DREDGING AREA BERTH POCKET DREDGING AREA

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:6: CHANNEL DREDGING AREA CHANNEL DREDGING AREA

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:6: DREDGING AREA

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: AREA DREDGED

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: DREDGE TO -11.0mCD

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: DREDGE TO -15.6mCD

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: DREDGED TO -11mCD MUDFLATS

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: AREA DREDGED S3

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: AREA DREDGED

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: DREDGED TO -11mCD

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: PHASE 1 UPSTREAM AREA DREDGED

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: AREA DREDGED

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: DREDGING PLAN

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:9: • Capital dredging of approximately 1,800,000m3 of marine sediments with offshore disposal into

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:9: the Tees Bay C disposal site. It is proposed that dredging is undertaken using a trailing suction

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:9: hopper dredger (TSHD) and a backhoe dredger.

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:9:5.2 Alternative dredging plant

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:9:There is likely to be a requirement to utilise a number of different types of dredger depending on the nature

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:9:of the material being dredged. Therefore, for different parts of the dredging it will be necessary to use a

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:9:TSHD or backhoe. The environmental implications of using these dredgers have been assessed and no

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:10:5.3 Alternative dredge depths

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:10:The proposed dredged depth in the navigation channel has been chosen to maximise the tidal window to

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11: • Offshore disposal of dredged material.

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11:The capital dredging of the river and the offshore disposal of dredged sediments both will cause plumes of

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11:sediment to form. The plume effects arising from the river dredging are characterised by a short-lived

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11:dredging activity, followed by a general dispersion in spatial extent and reduction in concentration over

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11:following hours. Since the dredging is a near-continuous operation, the plume effects will be observed

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11:throughout much of the approximately four-month period, but at varying extents depending on the dredging

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11:During operation of the new quay, the quay alignment and capital dredging of the river will not significantly

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11:capital dredging. There are no predicted changes in water level or wave conditions near the site or in the

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:deposition rates and hence a requirement for more sediment to be dredged annually from this local reach.

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:However, even under this scenario, the maintenance dredging from the reach local to the new quay will

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:make a very low overall contribution to the net annual maintenance dredging requirements from the estuary

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:as a whole. Therefore the potential increase in maintenance dredging requirement is not expected to be

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:significant and could easily be managed within existing maintenance dredging and offshore disposal

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:a result of the proposed dredge. However, on further consideration of the potential impact, the risk of

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:Best practice measures would be adopted during the dredging process to minimise the potential for

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:resuspension of sediments. Such measures include dredging in long strips to ensure the plume is located

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:13:and capital dredging, increased suspended sediment concentrations and increased sediment deposition.

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:13:with maintenance dredging. All operational phase impacts are predicted to be of negligible significance,

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:14:to marine mammals from dredging has been assessed as negligible. The assessment has concluded

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:14:Although there will be a small temporary increase in construction-related vessel traffic during dredging and

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:15:Adverse impacts may be expected as a result of temporary increases in SSC during the capital dredging

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:15:Alteration of subtidal habitat due to the proposed dredge is expected to be temporary and would be similar

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:15:to that already experienced through regular maintenance dredging that is already undertaken within the

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:15:Based on the expected underwater noise levels associated with capital dredging activities, sound thresholds

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:15:will already be habituated to regular dredging noises within the estuary and a minor adverse impact is

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:16:fishing activity as a result of the proposed scheme. As the channel is dredged on an almost daily basis, the

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:16:potential conflicts in the same way as routine dredging and other construction activities, through co-

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:16:ordination between STDC, the appointed Contractor and the Harbour Master. Management of dredging

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:17:(dredging and construction of the new quay) are in keeping with the historic (and current) character of the

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:17:previous dredging. Archaeological material may still survive, albeit fragmentary and dispersed, or potential

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:20:7.21 Offshore disposal of dredged material

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:20:It is proposed that all dredged material would be disposed of offshore at the Tees Bay C offshore disposal

R-2020-0685-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:20:Based on the findings of hydrodynamic and sedimentary plume modelling, the disposal of dredged material

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: Mitigation measures with regard to dredging may be required to manage

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: reductions. Such measures would entail limiting dredging to certain

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: proposed dredge on water and sediment quality are

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: Dredging has the potential to cause negative impacts on the water

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: with the proposed dredge are detailed in Section 9

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: The proposed dredging plant has been selected

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: encountered during the dredge, as well as the plant

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: The applicant should consider the (dredging) methodology to be used,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: which has been used for previous capital dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: the disposal of dredged material and the timing of works.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: to be used, disposal of dredged material and timing

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3: As detailed in Section 3, the dredged material is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3: dredged material previously and it can accept the total proposed amount

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3: dispose of capital dredged sediment. Impacts

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3: of dredged material.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3: Due to the quantity of material proposed to be dredged, it is advised that

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3: of dredged material are presented.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3:are predicted to occur (e.g. sediment plumes generated during capital dredging and effects on tidal currents

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3: • Cefas Guideline Action Levels for the disposal of dredged material (Cefas, 2000); and,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3:The Action Levels are used as part of a ‘weight of evidence’ approach to assessing the suitability of dredged

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:5:losses from dredging equipment and concentrations of contaminants within the sediments to be dredged

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:6:impacts associated with the proposed offshore disposal of dredged material are considered in Section 26,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:6:proposed new quay at South Bank. There is however a degree of overlap between the dredge footprint for

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:7: D2 Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:11:that found in 2006. The MMO has recently confirmed that the sediment to be dredged from the NGCT

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:12:13 surface samples from within and adjacent to the proposed dredge footprint for the NGCT scheme.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:13: Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:15:across the proposed dredge footprint. Samples will be recovered at the surface and at 1m intervals at each

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:15:of the 25 positions to the proposed dredge depth, or until geological mudstone is encountered beforehand

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:15:undertake maintenance dredging of the river to maintain the advertised dredge depths, with mid-licence

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:15:dredge disposal licence (to ensure that the maintenance dredged material remains suitable for offshore

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:7.5.1 Dispersion and redistribution of sediment during capital dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:Capital dredging would result in the creation of sediment plumes. To consider the potential extent and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:model MIKE3-HD and run for the four-month period over which dredging is likely to occur. The simulations

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:also accounted for the movement of dredgers and transport barges (including dredging, sailing, disposal

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:and downtime) and four ‘stages’ of dredging (which would occur in sequence) were modelled to allow for

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16: • Stage 1: BHD working to dredge the upper soft material in the berthing pocket and river channel.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16: • Stage 2: BHD and TSHD working in parallel to dredge the middle soft material in the berthing

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16: • Stage 3: BHD working to dredge the bottom hard material in the berthing pocket and river

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16: • Stage 4: BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:the figure that the largest concentrations are local to the dredger and typically reach around 100 to 200mg/l.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:dredgers. At some points in the cycle, areas of these initially separate plumes combine as they move

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:The maximum concentrations and the spatial extents of the plume arising from Stage 3 of the dredging are

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:and the production rate of dredging is notably lower. Figure 7.5 shows an example plume during Stage 3

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:dredging. Plots for the different tidal conditions are presented in Section 6.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:Again, peak concentrations close to the dredger are shown in the plume modelling output. On the ebb

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:17:Figure 7. 3 Plume of suspended sediment concentrations arising from dredging activities during Stage 2

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:17:(release from south-western ends of the two parallel dredging transects)

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:18:Figure 7. 4 Plume arising from dredging activities during Stage 1 of the capital dredge (release from the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:18:south-western corner of the dredging transect during the ebb phase)

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:19:Figure 7. 5 Plume of suspended sediment concentrations arising from dredging activities during Stage

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:19:3 (release from the south-western corner of the dredging transect during the ebb phase)

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:20:Figure 7.6 Plume of enhanced suspended sediment concentrations arising from dredging activities

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:Stage 2 of the proposed dredging schedule (when the BHD and TSHD would be working in parallel to dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:the proposed capital dredging works either do not cause elevations at the water quality monitoring points or

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:will be exceedances over baseline conditions throughout Stage 2 of the dredging schedule (as noted above,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:a period of approximately four weeks within the approximately four month dredging programme). The effect

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:7.5.2 Effects on water quality physical parameters during capital dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:The relatively limited nature of the plume extents predicted for the proposed capital dredging indicates that

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:Additionally, a significant component of the dredged material is likely to be geological sediment, which is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:only for the duration of the dredge (approximately four months) and reversible. As a result, the magnitude

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:22:7.5.3 Remobilisation of contamination during capital dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:22:undertaken to inform whether maintenance dredging within a dock in Dover Harbour could give rise to EQS

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:22:estimates of sediment losses from dredging equipment and concentrations of contaminants within the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:22:sediments to be dredged to provide an indication of the amount of contamination that could be released into

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:23:Table 7.9 Summary of calculations undertaken for potential water column effects within the Tees estuary at low water (based on removal of 15,000m3 of dredged

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:23: Calculated loss of sediment derived using indicative values for the mass of sediment resuspended per m 3 of dredged material in CIRIA guidance (John et al., 1999) in kg/m3. Worst case S-Factor for

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:23: MAC EQS Maximum Allowable Concentration. Used given the fact that dredging is not continuous as opposed to annual average EQS which averages samples collected over a year.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:25: • A relatively large proportion of the total volume of dredged material is anticipated to comprise

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:25: the dredge area.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:25: • The daily dredge volume is likely to be less than that accounted for due to stoppages associated

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:25: • The calculation is based on loss from a TSHD whereas a considerable component of the dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:25: will be undertaken with a backhoe dredger which has a lower production rate and therefore

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:25:weeks during Stage 2 of the proposed dredging programme.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:7.6.1 Dispersion and redistribution of sediment during maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:increase in deposition rates and hence a requirement for more material to be dredged from this local reach

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:annually (see Section 6 for more information). A 10% increase in annual maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:However, the majority of material removed during the weekly maintenance dredging campaigns undertaken

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:net annual maintenance dredging requirement from the estuary as a whole. Therefore the potential increase

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:in maintenance dredging requirement is not expected to be significant and would be managed within existing

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:maintenance dredging and offshore disposal regimes.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:dredging operations is predicted to be very low. Given the sensitivity of the Tees estuary is considered to

R-2020-0685-ESM-EA R_2020_0685_ESM 4 March 2021 OFFICIAL.pdf:1:DREDGING AND DEVELOPMENT OF NEW QUAY AND ASSOCIATED WORKS

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:1:estuarine-and-coastal-waters. The proposed quay, dredge area, disposal site and WFD water body outlines

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:1:maintenance dredging campaigns would be on a significantly smaller scale than the capital dredging and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:1:that the estuary is already subject to ongoing maintenance dredging, scoping is undertaken on capital

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:1:dredging only.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:2: Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:3: • C2 Capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:3: dredger.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:5: 22.Dredging disposal strategy

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:5: 23.Reduce impact of dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:5: 25.Retime dredging or disposal None identified

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:5: 27. Dredge disposal site selection

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:7:C2 Capital dredging hydromorphology and WFD mitigation are no higher sensitivity water quality due to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:7: 500m. during dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:8:C2 Capital Dredging No – dredging will not impact on the groundwater body

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:9:28.5 Detailed assessment – C2 Capital dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:10: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:10: to the new quay alignment) and the local deepening of the bed due to the capital dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:10: the deposition will require periodic dredging to maintain the design depths.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:10:in mean tidal prism as a result of the new quay’s set-back alignment and dredging of part of the existing

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11:Overall therefore, the effects of the capital dredging and presence of new quay wall on the flow conditions

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11:Capital dredging within the river would result in sediment plumes. To consider the potential extent and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11:model MIKE3-HD and run for the four-month period over which dredging is predicted to occur. The

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11:simulations also accounted for the movement of dredgers and transport barges (including dredging, sailing,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: BHD working to dredge the In all tidal conditions modelled, the lateral extent of the plume across the river channel

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: created by the different dredgers. At some points in the cycle, areas of these initially

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: parallel to dredge the middle

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: 3 BHD working to dredge the The maximum concentrations and the spatial extents of the plume arising from Stage

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: bottom hard material in the 3 of the dredging are much lower than those experienced during Stage 1 largely

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: berthing pocket and river because the material being released is coarser and the production rate of dredging is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: channel. notably lower. Plume very small and located close to the dredging activity.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: 4 Again, peak concentrations close to the dredger are shown in the plume modelling

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: parallel to dredge the material

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:12: Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:concentations within an hour. All other stages of proposed dredging either do not cause elevations or only

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:Tyne for the New Tyne Crossing to predict the consequences of dredging on dissolved oxygen

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:such as dredging times, seasonal fluctuations and river flows, the modelling predicted only small differences

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:between background and dredging impacted dissolved oxygen concentrations. No difference was noted

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:between the summer and winter concentrations. Furthermore, dredging in the Tyne is considered to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:limited plume extents for the majority of the capital dredge for the proposed scheme.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:dissolved oxygen concentrations are only likely to be an issue when dredging within an area with an existing

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:monitoring of dredging suggests effects are unlikely. Given the water body has a classification status of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14: • A relatively large proportion of the total volume of dredged material is anticipated to comprise

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14: the dredge area.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14: • The daily dredge volume is likely to be less than that accounted for due to stoppages associated

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14: • The calculation is based on loss from a TSHD whereas a considerable component of the dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14: will be undertaken with a backhoe dredger which has a lower production rate and therefore

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14:with hours) for Stage 2 which reduce as dredging progresses (see Figure 28.4).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14:suspended solids when in close proximity to the dredger. As a result, a non-temporary deterioration in water

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14:The majority of the proposed dredge footprint is located within the subtidal parts of the Tees estuary and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14:therefore the majority of the dredge would impact on the lower sensitivity habitat ‘subtidal soft sediment’ of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14:locate the quay in the riverbank (i.e. on land), dredging and excavation in front of the quay wall to create the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:15:Information regarding the habitat located within the dredge footprint is to be confirmed with a site specific

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:15:collected to inform the ES for NGCT are likely to be similar in nature to those found within the dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:15:most frequently in the estuarine locations (and within the area to be dredged for this project) was EUNIS

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:15:The biotopes recorded in the 2019 survey are likely to reflect those located in the dredge area given their

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:15:Whilst capital dredging would remove material from the seabed it would not alter the habitat type available

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:15:composition and numbers following dredging, it is predicted that the sediment communities would recover

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:16:It is also recognised that the proposed dredge footprint is within close proximity to the North Tees mudflat,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:16:Sediment suspended within the dredging plumes will fall to the riverbed, either soon after disturbance or

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:16:spillage occurring during the dredging operation (for coarser-grained sediment fractions), or at a point in

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:16:by deposition. It can be seen that much of the sediment falls to the bed within the dredged areas (from

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:16:where it will be re-dredged to achieve the necessary bed depths), whilst the deposition that occurs in other

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:17:Figure 28.5 Maximum river bed thickness change due to sediment deposition arising from dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:17:activities during Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18:affected areas (Appleby and Scarratt, 1989). However, given that maintenance dredging is regularly

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18:affected area would likely be relatively tolerant / acclimatised to the disturbances associated with dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18:areas of the estuary at any one time. Additionally, it is proposed that dredging would be limited to one side

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18:past the dredging activity (and for resident species to relocate to largely undisturbed areas), thus reducing

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: There would be a temporary presence of dredging vessels but

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: Dredging disposal strategy Whilst there would be a temporary increase in material that

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: Reduce impact of dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: would not alter significantly the maintenance dredging and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: Retime dredging or disposal MMO and their advisors Cefas.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: Dredging would be managed in line with mitigation measures

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: Dredge and disposal site selection agreed for various environmental topics which include

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: dredging along the axis of the river to ensure the plumes are

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: a result of the capital dredge is provided in Section 28.5.3.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:19:The combined effects of the dredge area and presence of new quay wall set back in the embankment are

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:19: Dredging disposal strategy

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:20: Reduce impact of dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:20: Retime dredging or disposal Riverbank excavation would not impact on these mitigation

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:20: Dredge and disposal site selection

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:21:The combined effects of the dredge area and presence of new quay wall set back in the embankment are

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:21: Dredging disposal strategy

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:21: Reduce impact of dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:21: Retime dredging or disposal

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:21: Dredge and disposal site selection

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:21: on marine ecology are related to dredging of the berth and are

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:22: deepened areas associated with the capital dredge which could have effects on ecological

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:22: • The combined effect of the loss of intertidal habitat (dredged berth), loss of subtidal (rock blanket)

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:22: and temporary disturbance of subtidal habitat (capital dredge) on ecological potential of the WFD

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:23: • The combined effect of dredging and effects associated with piling and riverbank excavation on

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:23:same as the effects predicted for the capital dredging alone.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:23:predicted to be temporary and a significant portion of the dredge area is already subject to maintenance

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:23:dredging so is already disturbed and supports communities habituated to this disturbance. The remaining

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:23: • Ongoing maintenance dredging in the Tees estuary.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:23:All schemes require dredging and construction of new riverbank structures and therefore the following

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:23: • Disturbance of marine habitats associated with dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:maximum concentrations of suspended solids are localised to the dredging activity and quickly disperse

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:with distance from the dredger. Additionally, peaks are relatively short lived (approximately an hour at a time

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:for the proposed scheme for example) and associated with specific dredging phases of each scheme. The

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:water column would be significantly increased by the projects all dredging at the same time. Where

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:proposed project both include mitigation measures to dredge in long strips to reduce the effects of sediment

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:dredgers would be working on different sides of the estuary and therefore clear channels would be

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:Any project that requires dredging would disturb the marine communities within the sediments to be

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:dredged. However, PDT undertake maintenance dredging in the majority of the estuary. Consequently, all

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:disturbance. Given dredging for all projects would not alter the substrate type or exposure, subtidal

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:index are not predicted given the existing maintenance dredging which would be accounted for in the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:proximity to the dredging over the slack water period for all projects. In practice, much of this deposited

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:material will be re-dredged as part of the capital works for each scheme. Beyond the immediate deposition

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:26: or water levels due to the limited area of proposed dredging for this project. Cumulative effects are therefore not predicted over and above those identified for the scheme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:26: Currents Modelling for the proposed scheme showed that the new quay alignment and capital dredge would have very small localised effects predominantly near to the quay wall but

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:26: require periodic dredging equivalent to a 10% increase in annual maintenance dredging requirement.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:26: material to the Tees estuary from offshore; with the potential to increase the maintenance dredging requirements by about 10%. No increase in sandy infill was predicted. A

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:26: changes in current speeds but that this would not alter the present frequency of, or methodology used for, maintenance dredging. Additionally, no effect was identified on

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:27: The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine material to Seal Sands. However, the latest annual update to the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:27: Maintenance Dredging Baseline Document (Royal HaskoningDHV, 2019) concludes that the current maintenance dredging regime does not adversely affect the overall

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:27: estuary morphology and the ongoing morphological processes at work. Additionally, maintenance dredging forms part of the baseline for WFD classification given that it is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:28:dredging’ identified risks to all WFD quality elements but detailed assessment deemed that the impacts

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:28:the locality of the dredger and only for hours at a time during Stage 2 of the proposed dredge programme.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:28:All other stages of dredging required for the proposed scheme did not indicate significant concentrations of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:28:protect resident and migratory fish further reduce this risk as dredging will be limited to occurring in long

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:29:These were NGCT, Anglo American Harbour Facilities and ongoing maintenance dredging in the estuary.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:29:would be sediment plumes associated with dredging simultaneously. However, on further consideration,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:29:peak concentrations for all projects are restricted to close proximity to the dredger and disperse with

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:29:projects would occur at the same time. Mitigation measures such as dredging in long strips as required for

R-2020-0685-ESM-Response from applicant.PDF:1:proposed works, both land side and the dredging proposals, it is necessary for HRO approval to be a pre-

R-2020-0685-ESM-Response from applicant.PDF:1:the first phase development being closest to the mouth of the River and, therefore, requiring less dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:3: Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:3: Advertised Dredge Depths (m)

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:3: Advertised Dredge Depths

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:4:to the presence of the dredger and barges within and adjacent to the navigation channel (as well as any

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:4:area in the vicinity of the proposed quay but the capital dredging will, at certain stages in the construction

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:4: • Post dredge surveys and promulgation.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:4:It is envisaged that PDT would manage any potential conflicts in the same way as routine dredging and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:4:Harbour Master. Management of dredging operations within a busy port environment is a standard activity

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:6: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:6: dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:6: deposition will require periodic dredging to maintain the design depths.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:6: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

R-2020-0685-ESM-PC1084-RHD-SB-DN-DR-C-1380_P01.pdf:1: BERTH POCKET DREDGING AREA BERTH POCKET DREDGING AREA

R-2020-0685-ESM-PC1084-RHD-SB-DN-DR-C-1380_P01.pdf:1: CHANNEL DREDGING AREA CHANNEL DREDGING AREA

R-2020-0685-ESM-PC1084-RHD-SB-DN-DR-C-1380_P01.pdf:1: DREDGING AREA

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:1:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:1:The proposed scheme is predicted to generate up to approximately 1,800,000m3 of dredged sediment from

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:1:been undertaken on a worst-case basis whereby all dredged sediment from the Tees estuary would be

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:1:26.2 Modelling the dispersion and deposition of capital dredged material

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:1:To inform the assessment of environmental impacts from predicted offshore disposal of dredged material,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:2:The proposed disposal of dredged material within the Tees Bay C offshore disposal site has the potential

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:2:within and beyond the boundary of the Tees Bay C site due to disposal of dredged material. Seabed

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:2:that there would be negligible impact on fish or fisheries due to the proposed deposition of dredged material

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:2:In 2010, CEFAS undertook the ‘SLAB5’ dredged material disposal site sampling survey at a number of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:5:The proposed disposal of dredged material at the Tees Bay C offshore disposal site would be significantly

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:5:arise from offshore disposal of dredged material

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:5:disposal site (an area which is designated specifically for the disposal of dredged material), however the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:invasive species Theora lubrica were found in samples from the Tees estuary, within the NGCT dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:are within the areas which are subject to regular maintenance dredging by PDT, however were located

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:outside of the proposed dredge footprint for the proposed South Bank scheme. The proposed dredging and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:dredge footprint prior to the dredge taking place (if they are not there already).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:species are not present at levels of concern within the Tees estuary. Maintenance dredged material from

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:Bay for many years and will continue into the future. As a result, the disposal of dredged material within

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:(beyond that which has already occurred from previous and ongoing maintenance dredge disposal

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:To undertake the disposal operation, the TSHD and/or disposal barges would transport dredged material

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:from the proposed dredge footprint to the Tees Bay C offshore disposal site. Consequently, there is potential

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:The disposal operations are linked to the dredging task and would require regular movements of dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:plant between the dredge site and the disposal site, via the navigation channel and the coastal waters of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:dredged material offshore would be low (i.e. a TSHD and/or a barge), and no impact is predicted.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:The proposed disposal of dredged material has the potential to result in shallowing of the water depth above

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:significantly impacts navigation. It is concluded that the proposed disposal of dredged material into the Tees

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:The underwater noise predicted to arise from the proposed dredging activities have been used as a proxy

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:for the assessment of potential impacts associated with offshore disposal of dredged sediments (see

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:disposal of dredged sediments are likely to be less than those generated during dredging activities. The

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:impact ranges are based on those modelled for the Hartlepool approach channel dredging scheme (see

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:As outlined in Section 10.5.1, there would be no risk of any PTS as a result of the proposed dredge and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:consequently this conclusion also applies to the proposed offshore disposal of dredged material.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:display a fleeing response, as a result of underwater noise during offshore disposal of dredged sediments

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:offshore disposal of dredged sediments

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8: et al., 2019) dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8: disposal of dredged 0.003km2

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:result of underwater noise associated with offshore disposal of dredged sediments

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8: disposal of dredged (0.0000006% of the NE England MU) (temporary effect with less than 1% of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:9:dredged sediments is negligible / very low for harbour porpoise, minke whale, grey seal and harbour seal,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:9:disposal of dredged sediments would be limited to the immediate vicinity of the vessels while they are

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:9:disposing of the dredged material. The number of harbour porpoise, minke whale, grey seal and harbour

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:9:dredged sediments on harbour porpoise, minke whale, grey seal and harbour seal, has been assessed as

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:9:Table 26.5 Assessment of impact significance for underwater noise during offshore disposal of dredged

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:9: dredged

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:9:Potential for vessel interactions (collision risk) with marine mammals during disposal of dredged

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:10: of dredged 0.002 grey seal Negligible / very low magnitude

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:10:potential increase in collision risk with vessels during offshore disposal of dredged sediments has been

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:10: of dredged very low

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:10:disturbance due to the disposal of dredged sediment into the disposal site to seals at Seal Sands, including

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:11:As outlined in Section10.5.4, any vessels passing the seal haul-out sites as they take the dredged material

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:11:dredged sediment

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:11:The offshore disposal of dredged material would temporarily increase the suspended sediment

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:11:Changes to marine mammals prey resource during offshore disposal of dredged sediment

R-2020-0685-ESM-OFFICER REPORT.pdf:1: QUAY STRUCTURES, CAPITAL DREDGING

R-2020-0685-ESM-OFFICER REPORT.pdf:1:capital dredging and development of new quay and associated works on land

R-2020-0685-ESM-OFFICER REPORT.pdf:1:electrical substation), capital dredging to create a berth pocket and

R-2020-0685-ESM-OFFICER REPORT.pdf:1:PC1084-RHD-SB-EN-DR-EVC-1113_P01 Dredging Plan

R-2020-0685-ESM-OFFICER REPORT.pdf:4:works, dredging, or a deposit or removal of a substance or object below the

R-2020-0685-ESM-OFFICER REPORT.pdf:15:capital dredging, offshore disposal of dredged material and construction and

R-2020-0685-ESM-OFFICER REPORT.pdf:16:wide) and the associated dredging requirements.

R-2020-0685-ESM-OFFICER REPORT.pdf:17:alternative dredging plant, approach channel and berthing pocket dredge,

R-2020-0685-ESM-OFFICER REPORT.pdf:17:Alternatives have also been considered with regard to the use of the dredged

R-2020-0685-ESM-OFFICER REPORT.pdf:17:transport and dredging activities.

R-2020-0685-ESM-OFFICER REPORT.pdf:18:  Capital dredging and offshore disposal of dredged sediments

R-2020-0685-ESM-OFFICER REPORT.pdf:18:  Maintenance dredging and offshore disposal of dredged sediments

R-2020-0685-ESM-OFFICER REPORT.pdf:20:redistribution of sediment during capital dredging, effects on water quality

R-2020-0685-ESM-OFFICER REPORT.pdf:20:physical parameters during capital dredging, remobilisation of contamination

R-2020-0685-ESM-OFFICER REPORT.pdf:20:during capital dredging, release of sediment during riverbank excavation to

R-2020-0685-ESM-OFFICER REPORT.pdf:20:during the process of capital dredging. In carrying out the assessment 4

R-2020-0685-ESM-OFFICER REPORT.pdf:20:stages of dredging have been established to allow for the timing of the

R-2020-0685-ESM-OFFICER REPORT.pdf:20:Stage 2 of the dredging schedule (as noted above, a period of approximately

R-2020-0685-ESM-OFFICER REPORT.pdf:20:four weeks within the approximately four month dredging programme). The

R-2020-0685-ESM-OFFICER REPORT.pdf:20:With regard to water quality during capital dredging it is considered the

R-2020-0685-ESM-OFFICER REPORT.pdf:20:capital dredging indicates that long term effects on dissolved oxygen

R-2020-0685-ESM-OFFICER REPORT.pdf:20:Additionally, it is considered that a significant component of the dredged

R-2020-0685-ESM-OFFICER REPORT.pdf:20:temporary for the duration of the dredge and then be reversible. The ES

R-2020-0685-ESM-OFFICER REPORT.pdf:21:Consideration has been given to the impact of capital dredging and the

R-2020-0685-ESM-OFFICER REPORT.pdf:21:consideration has been given to the volume of material to be dredged, the

R-2020-0685-ESM-OFFICER REPORT.pdf:21:sediment during maintenance dredging and surface water discharge to the

R-2020-0685-ESM-OFFICER REPORT.pdf:22:more material to be dredged from this local reach annually. An estimate of

R-2020-0685-ESM-OFFICER REPORT.pdf:22:maintenance dredging within the Tees, however the 10% increase predicted

R-2020-0685-ESM-OFFICER REPORT.pdf:22:maintenance dredging and offshore disposal regimes. The ES concludes on

R-2020-0685-ESM-OFFICER REPORT.pdf:22:experienced during maintenance dredging operations is predicted to be very

R-2020-0685-ESM-OFFICER REPORT.pdf:28: construction and capital dredging.

R-2020-0685-ESM-OFFICER REPORT.pdf:28: capital dredging and smothering as a result of dredging.

R-2020-0685-ESM-OFFICER REPORT.pdf:28: dredge regime.

R-2020-0685-ESM-OFFICER REPORT.pdf:29:The majority of the proposed dredge footprint is located within the subtidal

R-2020-0685-ESM-OFFICER REPORT.pdf:29:existing land), dredging and excavation in front of the quay wall to create the

R-2020-0685-ESM-OFFICER REPORT.pdf:30:due to demolition of existing structures and dredging, effects of increased

R-2020-0685-ESM-OFFICER REPORT.pdf:30:suspended sediment concentrations during dredging on marine species and

R-2020-0685-ESM-OFFICER REPORT.pdf:30:dredging on marine species and habitats.

R-2020-0685-ESM-OFFICER REPORT.pdf:30:The proposed capital dredging will result in direct impacts to existing areas of

R-2020-0685-ESM-OFFICER REPORT.pdf:30:intertidal and subtidal habitat that lie within the proposed dredge footprint. It is

R-2020-0685-ESM-OFFICER REPORT.pdf:30:also acknowledged that the proposed dredge footprint is in close proximity to

R-2020-0685-ESM-OFFICER REPORT.pdf:30:The proposed capital dredging that will form the berth pocket, and the rock

R-2020-0685-ESM-OFFICER REPORT.pdf:30:by the dredging activities (including within the turning circle) is estimated to be

R-2020-0685-ESM-OFFICER REPORT.pdf:30:32.5ha. In assessing the impact of the dredging, consideration has been given

R-2020-0685-ESM-OFFICER REPORT.pdf:30:community as a result of habitat loss caused by dredging would be of

R-2020-0685-ESM-OFFICER REPORT.pdf:30:The proposed development will require the dredging of approx. 1,800,000m3

R-2020-0685-ESM-OFFICER REPORT.pdf:30:dredging activity is acknowledged as resulting in a localised and short-term

R-2020-0685-ESM-OFFICER REPORT.pdf:31:regimes affecting marine communities and change in maintenance dredging

R-2020-0685-ESM-OFFICER REPORT.pdf:31:maintenance dredging when required. It is therefore considered that the new

R-2020-0685-ESM-OFFICER REPORT.pdf:31:additional maintenance dredging is not considered likely, with the frequency

R-2020-0685-ESM-OFFICER REPORT.pdf:31:due to the anticipated shipping activity and maintenance dredging this will

R-2020-0685-ESM-OFFICER REPORT.pdf:31:result of the maintenance dredging requirement arising from the proposed

R-2020-0685-ESM-OFFICER REPORT.pdf:32:With regard to the impacts from the proposed capital dredging, it is

R-2020-0685-ESM-OFFICER REPORT.pdf:32:No mitigation required and no residual impact with regard to dredging regime

R-2020-0685-ESM-OFFICER REPORT.pdf:32: result of dredging in front of the new quay. While this habitat does not

R-2020-0685-ESM-OFFICER REPORT.pdf:33:with the proposed capital and maintenance dredging, movement of vessels

R-2020-0685-ESM-OFFICER REPORT.pdf:33:dredged sediments have been considered within Chapter 26 of the ES.

R-2020-0685-ESM-OFFICER REPORT.pdf:34:seal that could be present in the dredge footprint that could be at potential

R-2020-0685-ESM-OFFICER REPORT.pdf:34:site is approximately 3km from the closest point of the proposed dredge

R-2020-0685-ESM-OFFICER REPORT.pdf:35:in suspended sediments during dredging or other activities will have a

R-2020-0685-ESM-OFFICER REPORT.pdf:35:dredging, vessel interactions (collision risk) during dredging and operational

R-2020-0685-ESM-OFFICER REPORT.pdf:35:use of the quay, disturbance at seal haul-out sites during dredging, changes

R-2020-0685-ESM-OFFICER REPORT.pdf:35:in water quality during dredging and changes to prey resource during

R-2020-0685-ESM-OFFICER REPORT.pdf:35:dredging.

R-2020-0685-ESM-OFFICER REPORT.pdf:35:dredging strategy currently undertaken by PD Ports. It is therefore considered

R-2020-0685-ESM-OFFICER REPORT.pdf:35:maintenance dredging during the operational phase of the proposed

R-2020-0685-ESM-OFFICER REPORT.pdf:35:The proposed impacts regarding maintenance dredging are considered to be

R-2020-0685-ESM-OFFICER REPORT.pdf:35:comparable of less than those addressed with regards to capital dredging in

R-2020-0685-ESM-OFFICER REPORT.pdf:42:supporting habitat due to dredging / excavation and demolition works, impacts

R-2020-0685-ESM-OFFICER REPORT.pdf:42:With regard to loss of supporting habitat during dredging and demolition works

R-2020-0685-ESM-OFFICER REPORT.pdf:42:waterbirds, including SPA / Ramsar site and SSSI features. The dredging

R-2020-0685-ESM-OFFICER REPORT.pdf:42:impacts on water quality are likely to result from dredging and excavation

R-2020-0685-ESM-OFFICER REPORT.pdf:43:effect on intertidal food resources as a result of the effects of capital dredging

R-2020-0685-ESM-OFFICER REPORT.pdf:43:personnel, plant / machinery, dredgers / other vessels and construction

R-2020-0685-ESM-OFFICER REPORT.pdf:43:lighting. The ES concludes that visual disturbances from dredging operations

R-2020-0685-ESM-OFFICER REPORT.pdf:44:the estuary rather than dredging across the width of the river. This is to

R-2020-0685-ESM-OFFICER REPORT.pdf:44:reduce both the extent and impact of the dredged plume, as any plume

R-2020-0685-ESM-OFFICER REPORT.pdf:45:dredge operations in the Tees, such as in the NGCT scheme (Royal

R-2020-0685-ESM-OFFICER REPORT.pdf:45:location of dredging activities that will minimise the frequency by which a

R-2020-0685-ESM-OFFICER REPORT.pdf:45:dredger operates adjacent to the mudflats. Mitigation can also be provided

R-2020-0685-ESM-OFFICER REPORT.pdf:46: designated sites, including noise shrouds on piling rigs, and dredging

R-2020-0685-ESM-OFFICER REPORT.pdf:46: result of dredging in front of the new quay. While this habitat does not

R-2020-0685-ESM-OFFICER REPORT.pdf:48:marine water quality due to dredging, entrainment of fish and fish eggs by

R-2020-0685-ESM-OFFICER REPORT.pdf:48:dredging gear, underwater noise during dredging, underwater noise from

R-2020-0685-ESM-OFFICER REPORT.pdf:48:Consideration has been given to marine water quality during dredging

R-2020-0685-ESM-OFFICER REPORT.pdf:48:Chapters 6 and 7 of the ES. Based on the impacts resulting from dredging at

R-2020-0685-ESM-OFFICER REPORT.pdf:48:throughout the dredging campaign.

R-2020-0685-ESM-OFFICER REPORT.pdf:48:are likely to be sensitive to entrainment from dredging activities. The area is

R-2020-0685-ESM-OFFICER REPORT.pdf:48:however acknowledged as encountering regular maintenance dredging within

R-2020-0685-ESM-OFFICER REPORT.pdf:48:the proposed dredge footprint therefore suggesting that the riverbed is likely

R-2020-0685-ESM-OFFICER REPORT.pdf:48:uptake of eggs during the capital dredge. The ES concludes that the impact

R-2020-0685-ESM-OFFICER REPORT.pdf:48:Underwater noise has been considered as result of dredging activities. These

R-2020-0685-ESM-OFFICER REPORT.pdf:48:dredging vessels is required to carry out the development and while smaller

R-2020-0685-ESM-OFFICER REPORT.pdf:48:most suitable form of mitigation relates to the location of dredging and the axis

R-2020-0685-ESM-OFFICER REPORT.pdf:49:in a permanent loss of such habitat. Additionally, capital dredging and

R-2020-0685-ESM-OFFICER REPORT.pdf:49:alterations of subtidal habitat as a result of dredging activity there is

R-2020-0685-ESM-OFFICER REPORT.pdf:49:vessel traffic and maintenance dredging. The effect on fishing vessels is

R-2020-0685-ESM-OFFICER REPORT.pdf:49:change in maintenance dredging regime affecting supporting habitats and

R-2020-0685-ESM-OFFICER REPORT.pdf:50:the existing maintenance dredging strategy, and no changes to the present-

R-2020-0685-ESM-OFFICER REPORT.pdf:50:day maintenance dredging strategy will be necessary. There would therefore

R-2020-0685-ESM-OFFICER REPORT.pdf:50:beyond those already associated with the existing maintenance dredging

R-2020-0685-ESM-OFFICER REPORT.pdf:50:Mitigation is proposed relating to impacts of dredging on water quality. This

R-2020-0685-ESM-OFFICER REPORT.pdf:50:includes limits to dredging activity within the river to one side at a time and the

R-2020-0685-ESM-OFFICER REPORT.pdf:50:With regard to underwater noise from dredging, the proposed mitigation is

R-2020-0685-ESM-OFFICER REPORT.pdf:50:considered to include limits to dredging activity within the river to one side at a

R-2020-0685-ESM-OFFICER REPORT.pdf:51:No mitigation measures are required with regard to dredging regime affecting

R-2020-0685-ESM-OFFICER REPORT.pdf:52:dredgers/barges and those existing vessels within the estuary.

R-2020-0685-ESM-OFFICER REPORT.pdf:52:  Post dredge surveys and promulgation.

R-2020-0685-ESM-OFFICER REPORT.pdf:54:  The proposed new quay alignment and capital dredging to deepen the

R-2020-0685-ESM-OFFICER REPORT.pdf:54: deepening of the bed due to the capital dredging.

R-2020-0685-ESM-OFFICER REPORT.pdf:54: the deposition will require periodic dredging to maintain the design

R-2020-0685-ESM-OFFICER REPORT.pdf:54:  There is no measurable change caused by the capital dredging at the

R-2020-0685-ESM-OFFICER REPORT.pdf:59:  capital dredging (to deepen the northern half of the Tees Dock turning

R-2020-0685-ESM-OFFICER REPORT.pdf:59:during dredging or during excavations, these could be of potentially high

R-2020-0685-ESM-OFFICER REPORT.pdf:60:  The proposed new quay alignment and capital dredging to deepen the

R-2020-0685-ESM-OFFICER REPORT.pdf:60: -in the main channel the deposition will require periodic dredging to

R-2020-0685-ESM-OFFICER REPORT.pdf:60: expected to already have occurred during the capital dredge

R-2020-0685-ESM-OFFICER REPORT.pdf:60:  There is no measurable change caused by the capital dredging at the

R-2020-0685-ESM-OFFICER REPORT.pdf:63:  Dredging; and

R-2020-0685-ESM-OFFICER REPORT.pdf:83:during demolition, quay construction, excavation and dredging phases.

R-2020-0685-ESM-OFFICER REPORT.pdf:86:22.10 of the ES which considers emissions from construction dredger,

R-2020-0685-ESM-OFFICER REPORT.pdf:91:Chapter 26 – Offshore Disposal of Dredged Material

R-2020-0685-ESM-OFFICER REPORT.pdf:91:large volume of dredged sediment. It is predicted that the volume of material

R-2020-0685-ESM-OFFICER REPORT.pdf:92:The potential impacts from the disposal of the dredged material within Tees

R-2020-0685-ESM-OFFICER REPORT.pdf:92:with regard to dredged material disposal. As part of this assessment

R-2020-0685-ESM-OFFICER REPORT.pdf:92:specifically for the disposal of dredged material), however the dominant

R-2020-0685-ESM-OFFICER REPORT.pdf:93:Maintenance dredged material from the Tees (which contains both invasive

R-2020-0685-ESM-OFFICER REPORT.pdf:93:dredged material within Tees Bay C as a result of the proposed scheme

R-2020-0685-ESM-OFFICER REPORT.pdf:93:has already occurred from previous and ongoing maintenance dredge

R-2020-0685-ESM-OFFICER REPORT.pdf:93:barges would transport the dredged material from the dredging works site to

R-2020-0685-ESM-OFFICER REPORT.pdf:93:dredged, it is likely that regular movements of vessels between the dredging

R-2020-0685-ESM-OFFICER REPORT.pdf:94:Matters relating to Offshore Disposal of Dredged Material are not matters that

R-2020-0685-ESM-OFFICER REPORT.pdf:94:the view that matters relating to Offshore Disposal of Dredged Material will be

R-2020-0685-ESM-OFFICER REPORT.pdf:96: designated sites, including noise shrouds on piling rigs, and dredging

R-2020-0685-ESM-OFFICER REPORT.pdf:96: result of dredging in front of the new quay. While this habitat does not

R-2020-0685-ESM-OFFICER REPORT.pdf:96:dredging and development of new quay and associated works (phase 1) is

R-2020-0685-ESM-OFFICER REPORT.pdf:97: PC1084-RHD-SB-EN-DR-EVC-1113_P01 Dredging Plan received by the

R-2020-0685-ESM-61586 Quay Design and Access Statement November 2020.PDF:1: “Demolition of existing redundant quay structures, capital dredging and development of new

R-2020-0685-ESM-61586 Quay Design and Access Statement November 2020.PDF:2: • The Seaward Works – these comprise dredging of the approach channel and berth pocket,

R-2020-0685-ESM-61586 Quay Design and Access Statement November 2020.PDF:2: the disposal of the dredged material at sea. Planning consent is not required for these works

R-2020-0685-ESM-61586 Quay Design and Access Statement November 2020.PDF:5: dredging to create a berth pocket and construction and operation of a new quay (to be set back

R-2020-0685-ESM-61586 Quay Design and Access Statement November 2020.PDF:6: required (90m wide) and the associated dredging requirements. Consultation with PD Ports’

R-2020-0685-ESM-61586 Quay Design and Access Statement November 2020.PDF:6: There would, therefore, be a requirement for dredging of estuarine (marine) sediments and

R-2020-0685-ESM-61586 Quay Design and Access Statement November 2020.PDF:6: scheme (and consequently the dredging requirements) has been designed to avoid the pipe

R-2020-0685-ESM-61586 Quay Design and Access Statement November 2020.PDF:7:6.3 The Phase 1 quay wall would extend 125m either side of the berth pocket to retain the dredged

R-2020-0685-ESM-61586 Quay Design and Access Statement November 2020.PDF:7: dredging will need to take place as part of each phase.

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:1: 4.6.3 Dredging and Disposal ………………………………………………………………. 11

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:2:quays; dredging of the River Tees to provide a berthing pocket, deepned approach

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:7:It is advised that a habitat survey should occur within the dredge footprint, so to

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:7:The River Tees has been subjected to dredging in the recent past, meaning that the

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:9:The MMO would expect water quality is to be scoped into the ES, as the dredging

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:9:  Dredging of the River Tees;

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11:4.6.3 Dredging and Disposal

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11:Dredging has the potential to cause negative impacts on the water environment. It

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11:habitats, impacting upon tern foraging and migratory fish populations. Dredging

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11: The applicant should consider the methodology to be used, the disposal of dredged

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11:dredge material before, and can accept the total proposed amount of dredge

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11:sea (and to inform the impact assessment). Any material to be dredged and

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11:Due to the quantity of material proposed to be dredged, it is advised that the plan for

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11:The MMO would support the consideration of using the dredged material for

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:12:information on the dredging and piling activities will be required, including the

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:12:applicant has estimated that the works will require a capital dredge of 2.5 million

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:12:1.6 million m3 of capital dredge material if the works are carried out alongside the

R-2020-0685-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:12:Northern Gateway project (capital dredge of 4.5 million m 3).

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:2: 1.2. Capital dredging is anticipated to be required within part of the Tees Dock turning

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:2: The total dredge volume is predicted to be 1,960,000m3.

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:2: 1.3. Two active disposal sites were identified that could potentially accept dredged

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:2: dredged material would be disposed of at Tees bay C (TY150) disposal site.

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:2: 1.4. It is noted that a significant proportion of the proposed dredge volume is anticipated

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:2: Management of Dredged Material, samples should be taken to provide a good

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:2: representation of the volume of material to be dredged. The distribution and depth of

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:2: sampling should reflect the size and depth of the area to be dredged, the amount to

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:2: be dredged and the expected variability in the horizontal and vertical distribution of

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:2: 2.2. In consideration of the volume details of the proposed dredge, the MMO advises that

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:2: 25 sample sites will be required from across the dredge area to provide adequate

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:3: a maximum dredge depth as indicated on the sample plan form attached in

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:3: 2.4. If the maximum dredge depth exceeds the depth at which mudstone is located,

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:3: dredged and samples must be representative of the material to be dredged (see

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:3: 3.1. Details of recent sampling from within the dredge area were provided. This included

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:3: maintenance dredge and disposal licence (L/2015/00427/4). 10 surface samples

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:4: 2017, comprising of 37 surface samples within and adjacent to the proposed dredge

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:4: footprint for the NGCT. The proposed dredge footprint for NGCT marginally overlaps

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:4: majority of the NGCT dredge footprint is located downstream of the proposed survey

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:5: 5.3. Where long term licences for maintenance dredging will be applied for, additional

R-2020-0685-ESM-Appendix 6_Sediment sampling plan.pdf:8:Stations should be evenly distributed across the dredge area

R-2020-0685-ESM-Appendix 16_WFD scoping tables.pdf:4:Table A2 Output of WFD scoping for activity C2 Capital dredging

R-2020-0685-ESM-Appendix 16_WFD scoping tables.pdf:4:Could significantly impact the hydromorphology of any Yes, capital dredging could potentially alter hydromorphological parameters in the water

R-2020-0685-ESM-Appendix 16_WFD scoping tables.pdf:4: The area to be impacted by dredging equates to 350,000m2 (0.32km2) which when

R-2020-0685-ESM-Appendix 16_WFD scoping tables.pdf:4:Is within 500m of any higher sensitivity habitat and consideration of the type of habitat to be disturbed/removed by the capital dredge is

R-2020-0685-ESM-Appendix 16_WFD scoping tables.pdf:4:outside the estuary but could delay or prevent fish There is the possibility of sediment plumes during the dredging works. Possibility of

R-2020-0685-ESM-Appendix 16_WFD scoping tables.pdf:4:entering it or could affect fish migrating through the underwater noise during dredging impacting on fish is scoped out due to evidence provided

R-2020-0685-ESM-Appendix 16_WFD scoping tables.pdf:4:Could impact on normal fish behaviour like movement, only) less than 20m from the dredger. It is considered unlikely that fish would remain within the

R-2020-0685-ESM-Appendix 16_WFD scoping tables.pdf:4: Regular maintenance dredging undertaken within the proposed dredge footprint on a year-

R-2020-0685-ESM-Appendix 16_WFD scoping tables.pdf:4: the risk of direct uptake of eggs during the capital dredge (See Section 13).

R-2020-0685-ESM-Appendix 16_WFD scoping tables.pdf:5: There is the possibility of sediment plumes during the dredging works

R-2020-0685-ESM-Appendix 16_WFD scoping tables.pdf:16:Table B2 Completed Scoping Tables for Activity: C2 Capital dredging

R-2020-0685-ESM-Appendix 16_WFD scoping tables.pdf:16: Qualitative status Quantitative Dependent Surface Water Body No Capital dredging would not impact on

R-2020-0685-ESM-Appendix 16_WFD scoping tables.pdf:16: Chemical Chemical Dependent Surface Water Body No Capital dredging would not impact on

R-2020-0685-ESM-Appendix 16_WFD scoping tables.pdf:17: Supporting elements Prevent and limit objectives No Capital dredging would not impact on

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:3:5.4 Dredging Methodology and Schedule 53

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:3:5.4.1 Dredging Method 53

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:3:5.4.2 Dredging Schedule 54

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:3:5.5 Backhoe Dredging and Disposal Cycle 57

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:4:5.6 TSHD Dredging and Disposal Cycle 59

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:4:5.7.2 River Dredging 61

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:4:Table 5-1: Soil Types to be dredged 51

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:4:Table 5-2: Particle size distribution for dredged soil types 52

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:4:Table 5-3: Dredging Schedule Overview 55

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:6:Figure 5.1: Dredging Layout 53

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:6:Figure 5.2: South Bank Wharf Dredge Site and Tees Bay C Offshore Disposal Site 54

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:Figure 5.3: Sediment release schedule for dredger 56

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:Figure 5.5: Maximum enhanced suspended sediment concentrations arising from dredging

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:Figure 5.6: Maximum enhanced suspended sediment concentrations arising from dredging

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:Figure 5.7: Maximum enhanced suspended sediment concentrations arising from dredging

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:Figure 5.8: Maximum enhanced suspended sediment concentrations arising from dredging

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 65

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:from dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 66

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 67

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:from disposal activities during Stages 1 - 4 inclusive of the capital dredging programme 69

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 70

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:9: movement of suspended sediment from the proposed dredging and disposal activities by coupling with

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:9: 4-month dredging and disposal schedule.

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:59: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:59: dredging.

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:59: of sediment. In the main channel the deposition will require periodic dredging to maintain the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:60: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:61:investigate the suspended sediment transport effects of the proposed dredging of the channel and the berth

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:61:Available soil data indicates that it is expected that the dredging material consists of different soil types. A

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:61:summary of the expected dredging soil types based on the ground investigation data (Definitive Feasibility

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:61:between soft and hard material because it is expected to influence the choice of dredging equipment to be

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:61:Table 5-1: Soil Types to be dredged

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:62:Table 5-2: Particle size distribution for dredged soil types

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:62:The dredging layout for the South Bank dredging scope is shown in Figure 5.1. The river channel in front

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:62:of the South Bank Wharf as well as part of the Tees Dock Turning Area will be dredged to a level of -11mCD.

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:62:The berth pocket in front of the new quay has a design bed level of -13.6mCD, but the dredge volumes

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:62:considered in the dispersion model include an extra two metres of dredge material down to a bed level of -

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:62:dredging schedule. Due to the uncertainty of the time when the dredging will take place, the worst scenario

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63: Figure 5.1: Dredging Layout

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63:5.4 Dredging Methodology and Schedule

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63:The dredging method, dredging schedule and details of the sediment release settings for the sediment

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63:5.4.1 Dredging Method

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63:The sediment will be dredged using two types of dredgers. The soft soil material below a depth of -5mCD

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63:will be dredged by using a Trailing Suction Hopper Dredger (TSHD), and a Backhoe Dredger (BHD) will be

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63:used to dredge material above this level. The hard soil material will also be dredged by the BHD because

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63:All dredged material will be taken to the “Tees Bay C” offshore disposal site which is approximately 18km

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64: Figure 5.2: South Bank Wharf Dredge Site and Tees Bay C Offshore Disposal Site

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:5.4.2 Dredging Schedule

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:The dredging schedule and quantity for the BHD and TSHD are described in Table 5-3. The dredging will

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:BHD working in parallel on dredging the soft soil material below the level of -5mCD, and then the BHD will

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:A total of 1.8 million m3 of bed material will be dredged over a period of 17weeks. The simulation covers the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:entire dredging period and the movement of dredgers and transport barges were tracked for the processes

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:of dredging, sailing, disposal and downtime for bad weather, refuelling, and equipment maintenance.

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:Figure 5.3 and Figure 5.4 show the sediment release schedules for the dredgers at the South Bank Wharf

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:site and Tees Dock Turning Area, and at the offshore disposal site respectively. The dredging schedule will

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:start with the BHD dredging the soft material above -5mCD at South Bank Wharf for 3.7 weeks, followed by

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:the TSHD and BHD working in parallel dredging soft material below -5mCD which will take 3.7 weeks. Then

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:the BHD will start dredging the hard material at the site for 8.6 weeks. After this time the BHD and TSHD

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:will then be working in parallel again to dredge the material from the Tees Dock Turning Area which will take

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:0.7 weeks. This means that the whole dredging campaign will take 17 weeks to complete.

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:The disposal schedule will follow the same pattern as the dredging schedule in that the barge filled by the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:65:Table 5-3: Dredging Schedule Overview

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:65:Dredge time (minutes) 75 123 123 286 75 123

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:65:Total dredging cycle time

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:65:Dredging volume (m3) 568,577 361,423 360,000 330,000 103,933 66,067

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:65:Dredging time (weeks) 3.7 3.7 3.7 8.6 0.7 0.7

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:66: Figure 5.3: Sediment release schedule for dredger

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:The following assumptions have been made for the simulation of sediment plumes arising from dredging

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:At any one time at least one dredger, or for some of the dredging period two dredgers, are scheduled to be

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:in operation and will operate at full capacity. The dredgers will release material along a single line along the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:channel, the berth pocket and part of the Tees Dock Turning Area. At the offshore disposal site, the dredger

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:approach. The dredger will actually move around the dredging area and disposal site along multiple lines

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:5.5 Backhoe Dredging and Disposal Cycle

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:This section describes the backhoe dredge and disposal cycle for the different soil types and depth layers.

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:The backhoe dredger will dredge 360,000 m3 of soft surface layer material above a level of -5mCD at the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:South Bank Wharf site. The dredger will operate continuously filling a barge, with two barges being in

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:operation sailing back and forth to the offshore disposal site. The dredger disperses sediment into the water

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:The backhoe will dredge for 123 minutes to load one barge, the barge will then sail for 60 minutes to the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:Once the backhoe dredger has removed the soft middle layer, the backhoe will dredge 361,423 m3 of soft

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:middle layer material below a level of -5mCD at the South Bank Wharf site. The dredger will operate

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:site. The dredger disperses sediment into the water column at a sediment release rate of 5.6 kg/s. The

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:The backhoe will dredge for 123 minutes to load one barge, the barge will then sail for 60 minutes to the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:Once the backhoe dredger and TSHD have removed the soft middle layer, the backhoe will dredge 330,000

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:m3 of hard bottom layer material at the South Bank Wharf site. The dredger will operate continuously filling

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:a barge, with two barges being in operation sailing back and forth to the offshore disposal site. The dredger

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:The backhoe will dredge for 286 minutes to load one barge, the barge will then sail for 60 minutes to the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:Once the backhoe dredger has at the South Bank Wharf site, the backhoe will dredge 66,067 m3 of soft

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:middle layer material below a level of -5mCD at the Tees Dock Turning Area. The dredger will operate

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:site. The dredger disperses sediment into the water column at a sediment release rate of 5.6 kg/s. The

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:The backhoe will dredge for 123 minutes to load one barge, the barge will then sail for 60 minutes to the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:dredge cycle takes 248 minutes.

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:5.6 TSHD Dredging and Disposal Cycle

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:This section describes the TSHD dredge and disposal cycle for the different dredge locations.

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:The TSHD will dredge 568,577m3 of soft middle layer material below a level of -5mCD at the South Bank

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:Wharf site. The dredger will operate for 75 minutes to load to full capacity, during which time it disperses

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:The TSHD will dredge for 75 minutes to load, then sail for 50 minutes to the disposal site, discharge for 10

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:site. The total dredge and transport cycle take 190 minutes.

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:The TSHD will dredge 103,933m3 of soft middle layer material below a level of -5mCD at the Tees Dock

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:Turning Area. The dredger will operate for 75 minutes to load to full capacity, during which time it disperses

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:The TSHD will dredge for 75 minutes to load, then sail for 50 minutes to the disposal site, discharge for 10

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:site. The total dredge and transport cycle take 190 minutes.

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70:The model simulations account for the movement of dredgers and transport barges (including dredging,

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70:the river dredging operations (except for allowed periods of downtime) from along the centre line of the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70:dredged areas, running along the axis of the river channel, and also on a periodic basis from a single point

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70:in the centre of the offshore disposal site. The overall river dredging, and offshore disposal operations may

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: 1. BHD working to dredge the upper soft material (above -5m CD) in the berthing pocket and river

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: 2. BHD and TSHD working in parallel to dredge the middle soft material (below -5m CD) in the berthing

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: 3. BHD working to dredge the bottom hard material in the berthing pocket and river channel

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: 4. BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70:Results from the sediment dispersion modelling are discussed in turn for the river dredging and offshore

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: (intervals) throughout the entire 4-month period covered by the dredging and disposal simulations

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: spatial extents of enhancement in SSC or deposition on the bed from any stage of the river dredging

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: or offshore disposal operations during the relevant stage of the dredging programme. It is important

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: affected by a plume or deposition at some point during the 4-months of dredging or disposal

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71:5.7.2 River Dredging

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71:end of the dredging transect to the north-eastern end.

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71:(up to a few hundred mg/l) are confined to the release points along the dredging transect at the proposed

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71:development site. Further upstream and downstream of the areas directly dredged, the SSC enhancement

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71:drops markedly (typically below 50mg/l a short distance from the point of dredging, and at the peripheries

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71: Figure 5.5: Maximum enhanced suspended sediment concentrations arising from dredging activities

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71: during Stage 1 of the capital dredging programme

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:time, moving from the south-western end of each of two parallel dredging transects to the north-eastern

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:The maximum ‘zone of influence’ from Stage 2 of the dredging activities is shown in Figure 5.6. This shows

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:that during Stage 2 of the dredging, broadly similar patterns to those observed in Stage 1 are anticipated,

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:parallel dredging activities. Despite these subtle differences, maximum concentrations of SSC (up to a few

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:hundred mg/l) remain confined to the release points along the dredging transects at the proposed

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:development site. Further upstream and downstream of the areas directly dredged, the SSC enhancement

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:drops markedly (typically below 50mg/l a short distance from the point of dredging, and at the peripheries

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72: Figure 5.6: Maximum enhanced suspended sediment concentrations arising from dredging activities

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72: during Stage 2 of the capital dredging programme

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73:end of the dredging transect to the north-eastern end.

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73:The maximum ‘zone of influence’ from Stage 3 of the dredging activities is shown in Figure 5.7. This shows

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73:that during Stage 3 of the dredging, the maximum plume extent and maximum SSC values within the plume

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73:are much lower than experienced during both Stage 1 and 2 of the dredging (note the slight plume shown

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73:in the mid channel is a remnant of the Stage 2 dredging, which has not fully dissipated before Stage 3

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73: Figure 5.7: Maximum enhanced suspended sediment concentrations arising from dredging activities

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73: during Stage 3 of the capital dredging programme

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74:end of each of two parallel dredging transects to the north-eastern end.

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74:The maximum ‘zone of influence’ from Stage 4 of the dredging activities is shown in Figure 5.8. This shows

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74:that during Stage 4 of the dredging, the plume is created at the turning circle and along parts of the north

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74:dredging within the turning circle (up to a few hundred mg/l). Further upstream and downstream of the areas

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74:directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a short distance from the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74:point of dredging, and at the peripheries below 20mg/l) before merging with low background concentrations

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74: Figure 5.8: Maximum enhanced suspended sediment concentrations arising from dredging activities

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74: during Stage 4 of the capital dredging programme

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:75:The combined maximum ‘zone of influence’ from Stages 1 - 4 inclusive of the dredging activities has been

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:75:and that during the 4 months of dredging, all plume effects are confined to within the river reaches that

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:75:Furthermore, all plumes associated with dredging of the berthing pocket and river channel in the vicinity of

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:75:plumes associated with dredging of the turning circle are confined to the left bank (north of centre line)

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:75: Figure 5.9: Maximum enhanced suspended sediment concentrations (near-bed layer) arising from dredging activities

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:75: during Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:76: Figure 5.10: Maximum enhanced suspended sediment concentrations (near-surface layer) arising from dredging activities

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:76: during Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:77:the plumes created by river dredging. It can be seen that much of the sediment falls to the bed within the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:77:dredged areas (from where it will be re-dredged to achieve the necessary bed depths), whilst the deposition

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:77: Figure 5.11: Maximum river bed thickness change due to sediment deposition arising from dredging activities during

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:77: Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:77:navigation, timeseries plots of changes throughout the dredging programme have been extracted from the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:78:licensed for the disposal of dredged sediment and is routinely monitored as part of a national programme.

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:78:dredging programme has been plotted in Figure 5.12 for the near-bed layer of the water column. It should

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:79: during Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80: Figure 5.13: Maximum river bed thickness change due to sediment deposition arising from dredging activities during

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80: Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80:The river dredging and offshore disposal activities will both cause plumes of sediment to form close to the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80:During dredging, there will be release of sediment particles from the deliberate physical disturbance to the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80:river bed and, more significantly, from overflow when dredged material is loaded into the dredger’s hopper

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80:(for TSHD) or the transport barge (for BHD). Such releases will be ongoing through each dredging cycle

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80:until the dredging activity ceases due to downtime (e.g. adverse weather, vessel maintenance) or at

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80:scheduled breaks between stages of dredging activity. During offshore disposal, a single hopper load will

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80:Once a plume is generated, the highest SSC values will be recorded at the point of river dredging or offshore

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:During some stages of the dredging and disposal activities, most notably when both TSHD and BHD are

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:The plume effects arising from the river dredging are characterised by a short-lived localised increase in

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:SSC by a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial extent

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:and reduction in concentration over following hours. Since the dredging is a near-continuous operation, the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:different stages. During Stages 1-3 the dredging-related plume effects will be largely confined to the channel

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:During Stage 4 the dredging-related plume effects will be largely confined to the channel areas north of the

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:than within the dredged areas, sediment deposition on the river bed will be of very minor magnitudes, in

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:at jetties, it will subsequently be dredged as part of ongoing maintenance dredging regimes, whilst material

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:deposited back into the newly dredged areas will be re-dredged during the capital works in order to achieve

R-2020-0685-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:Overall, the changes in SSC and sediment deposition arising from the river dredging and offshore disposal

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_20. Flood risk and coastal defence.pdf:4:comments on their requirements when considering the potential impact of dredging on the estuary, the need

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_20. Flood risk and coastal defence.pdf:6:namely the proposed dredge footprint, is in Flood Zone 3, associated with the 1 in 200-year return period

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_20. Flood risk and coastal defence.pdf:7: 3.7 * The proposed dredge footprint at the Tees Dock

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:1: dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:1: • Impacts on marine ecology from increased suspended sediment during capital dredging and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:1: smothering as a result of dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:1: • Impacts on marine communities due to changes in the maintenance dredge regime.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:1:from invasive species, through activities such as maintenance dredging, shipping ballast water exchange,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:4: dredging, can have a large effect upon habitats such as intertidal muds

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:5:The majority of the proposed dredge footprint is located within the subtidal zone. However, given the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:5:proposals to locate the quay in the riverbank (i.e. on existing land), dredging and excavation in front of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:9: would be indirectly affected (e.g. through sediment deposition during capital dredging).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:9: a 5mm cod end, with the trawls evenly distributed across the dredge area. Fish, shrimp and other

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:9:between the dredge footprint for the two schemes, specifically at Tees Dock turning circle. Results from the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:10: Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:16:PDT would continue to undertake maintenance dredging of the river to maintain the advertised dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:9.5.1 Direct loss of habitat due to demolition of existing structures and dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:9.5.1.2 Capital dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:The proposed capital dredging would result in direct impacts to existing areas of intertidal and subtidal

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:habitat that lie within the proposed dredge footprint, which are certain to occur.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:It is recognised that the proposed dredge footprint is within close proximity to the North Tees mudflat, which

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:the assumed side slopes to be created as part of the proposed dredge, no direct or indirect impact to this

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:The impact on the subtidal from the proposed dredging activities within the existing channel and part of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:is expected to recover following the dredging activities being carried out. However, in the short term, the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:benthic community would be removed from areas where dredging will be carried out.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:18:However, the capital dredging that will take place to create the berth pocket, and the rock blanket that will

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:18:wall during operation is estimated to be 5ha. The area of subtidal to be disturbed by the dredging activities

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:18:dredging. As mentioned in Section 9.4.4, as there was no clear dominance of a single species, information

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:18:dredging, recruiting from the surrounding population within the year (Diaz-Castaneda et al., 1989), although

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:18:disturbance/substratum loss (i.e. from maintenance dredging). Based on these, MarLIN reports a medium

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:18:The benthic community is expected to be somewhat sensitive to physical habitat loss from the dredging of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:19:overall sensitivity of high has been assigned on a conservative basis. The dredging activities will result in

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:19:dredging activities, the magnitude of this impact on the benthic community and habitat is considered to be

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:19:as a result of habitat loss caused by dredging would be of moderate adverse significance.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:19:the Tees estuary which could be directly impacted by the proposed dredging activity (MarLIN, 2020).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:19:Some of the mudflat that will be lost as a result of the proposed dredge / excavation is classified as Priority

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:19:nature of the habitats within the Tees. Although the loss of the intertidal due to the dredge / excavation

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:It is recognised that the proposed dredge is a key component of the proposed scheme, and as such the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:dredging has been minimised as far as possible, within the constraint of delivering a development that meets

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:9.5.2 Effects of increased suspended sediment concentrations during dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:Dredging of approximately 1,800,000m3 of material will be required for the proposed scheme, over half of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:which will be for the creation of the berth pocket. Approximately 155,000m3 of this will be dredging of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:intertidal (defined as between Mean Low Water and Mean High Water). The proposed dredging activities

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:as a result of dredging (at a level exceeding the respective EQSs of relevant contaminants) (Section 7.5.3).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:resuspended sediment which does not contain elevations beyond Action Level 2). The dredged sediment

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:In general, sediment plumes induced by dredging are considered to pose only a limited risk to water quality

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:accommodate an increased oxygen demand, particularly where dredging takes place in open sea or

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:dredging periods. The sediment plume generated by dredging would likely be dispersed by tidal currents

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:away from the dredging location. The dispersion would either be upstream on the flood tide or downstream

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:For both types of dredger (backhoe and TSHD), peak suspended solids concentrations are predicted in the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:immediate vicinity of the dredger. Sediment plume modelling predicts different plume extents and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:suspended sediment concentrations depending on the stage of dredging (as described in Section 6). In all

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:cases, the sediment plume is predicted to be very narrow within the river, with the phase of dredging with

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:the highest concentrations predicted to be 100-200 mg/L within the vicinity of the dredger, reducing to 10-

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:All plumes associated with different stages of dredging in the vicinity of the proposed new quay are confined

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:to the southern bank of the river, whilst all plumes associated with dredging of the turning circle are confined

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:(Figure 6.51), it was only during Stage 4 of the dredging (related to dredging of the turning circle) that any

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:the proposed dredge is considered to be of low sensitivity to increases in suspended sediment.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:The dominant sediment biotope present within the dredge footprint is EUNIS biotope A5.323, Nephtys

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:9.5.3 Effects of smothering following dredging on marine species and habitats

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:During the capital dredging a proportion of the material that is dredged would be disturbed and re-suspended

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:material during dredging is described in Sections 6 and 7.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:The proposed dredging footprint of the scheme is considered to be relatively limited; restricted to the direct

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:mentioned in Section 9.5.1.2, the estimated area to be disturbed directly as a result of the dredging activities

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:Some of the sediment that is suspended as a result of the dredging activities will be deposited to the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:riverbed, either soon after disturbance occurring during the dredging operation (for coarser-grained

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:on the riverbed within the dredging footprint, whilst the deposition that occurs in other parts of the river is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:23:Any smothering caused by the proposed dredging activities is not predicted to result in the deposition of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:23:sediments at Seal Sands, Bran Sands or North Gare Sands, due to the limited footprint of dredging activities,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:23:potentially be affected. It is predicted that the proposed dredging would not give rise to the loss of a

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:24:of ship wash and maintenance dredging where required) due to the shipping activities during operation and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:level rise. In the main channel the deposition will require periodic dredging to maintain the design depths.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:Changes to the cross-sectional area of an estuary due to capital dredging creation of a new subtidal area

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:9.6.3 Change in maintenance dredging regime affecting marine communities

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:dredging will not change. The areas that are being proposed to be maintenance dredged for the scheme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:are all areas that are currently already being dredged regularly; there will be no change in the extent of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:seabed affected by maintenance dredging, with the exception of the newly created berthing pocket.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:continuously be disturbed by shipping activity and maintenance dredging and, therefore, this will prevent

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:communities as a result of the maintenance dredging requirement arising from the proposed scheme.

R-2020-0685-ESM-PN 685.pdf:1: STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT

R-2020-0685-ESM-PN 685.pdf:1:Excavation of front wall; • Dredging; and • Vessel deliveries

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1111_Appendix 1_Waste Report.pdf:14:In summary, the proposed scheme consists of demolition of the existing wharf and jetties, capital dredging

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1111_Appendix 1_Waste Report.pdf:15: • Dredging and offshore disposal of marine sediments.

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1111_Appendix 1_Waste Report.pdf:15:The proposed scheme (and consequently the dredging requirements) has been designed to avoid the pipe

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1111_Appendix 1_Waste Report.pdf:32:Dredged sediment is proposed to be disposed offshore; this will be subject to a marine licence from the

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1111_Appendix 1_Waste Report.pdf:32:MMO. Should it be determined by the MMO’s advisors that the dredged sediment is not suitable for offshore

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:3: o Forty-one-week dredging campaign of the channel, turning area and berthing pockets.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:6:Table 3: Estimated Construction Vessel Movements and Dredge Volumes……………………………………. 6

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:6:Table 5: Construction Phase Dredging Vessel Movements ………………………………………………………….. 8

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:8: BHD Backhoe Dredger

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:8: EGD Enclosed Grab Dredger

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:8: TSHD Trailing Suction Hopper Dredger

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:9:The construction phase requires dredging of the Tees Dock Turning Area the Navigable Channel

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:10: PC1084-RHD-SB-DN-RP-ME-1353_P01_Dredging Study.pdf

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:10: PC1084-RHD-SB-DN-DR-C-1381_P01 Dredging Plan.pdf Concept Design Dredging Plan

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:10: including dredging and

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:12:The proposed South Tees development project and associated dredging areas are shown within Figure

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:14: o Dredging of the; turning area, berthing pocket and adjacent approach channel (Figure

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:14:The primary activity associated with the construction phase is the dredge campaign which will include

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:14:the dredging of a section of the River Tees approach channel and turning area to depths of -11m CD

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:14:and a berthing pocket of -15.6m CD (see Figure 1). The dredge campaign will utilise an Enclosed Grab

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:14:Dredger (EGD), a Backhoe Dredger (BHD) and a Trailing Suction Hopper Dredger (TSHD) each

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:14:supported by two barges. The estimated duration, number of movements and dredge volumes are

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:14:Table 3: Estimated Construction Vessel Movements and Dredge Volumes

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:14: Total Dredge Volume

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:14: Dredging Phase Phase

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:15:dredging campaign will commence which is scheduled to run for 41 weeks as shown in Table 5 (Phase

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:15:1 for 18 weeks, Phase 2 for 23 weeks). Phase 2 dredging is scheduled to commence approximately 24

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:15:weeks after completion of Phase 1 dredging.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:15:Soft and hard materials will be loaded into barges at the dredge site and then transported to licensed

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:16:Table 5: Construction Phase Dredging Vessel Movements

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:16: THSD Dredging/Disposal 0 0 0 0 0 0 0 66 66 66 66 66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 66 66 66 66 66 66 66 0 0 0 0 0 0 0

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:16:*Phase 2 dredging to commence approximately 24 weeks after completion of Phase 1 dredging.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:20: Including; project and port dredgers, tugs, pilot boats, workboats, PD Ports

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:25:channel dredged to 10.4m.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:31: Dredger

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:39: Initially conceived in 2000. Container terminal dredged to 15m berth pocket.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:40: phase if the dredgers are very large.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:40: Post dredge surveys and Charts to be updated to include new berths and

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:40: promulgation. berthing pockets and in-channel dredge depths.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:40: C&O Hold regular meetings with dredge contractors

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:40: 5 during dredging operations. Issue Notice To

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: 21 Contact Contact berth - Tanker 5.10 35 Grounding Grounding - Workboat (Including Dredgers) 2.07

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: Collision - Workboat (Including Dredgers) ICW Workboat Incident 1.81

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: (Including Dredgers) 4.07 39 Mooring Incident - General Cargo vessel

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: 3 Collision Collision - Tanker ICW Workboat (Including Dredgers) 3.79 Contact - Workboat (Including Dredgers) with Navigation

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: Dredgers) 3.79

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: Dredgers) 3.53 40 Mooring Incident - Workboat (Including Dredgers)

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: Collision - Workboat (Including Dredgers) ICW Project Incident 1.31

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: 23 Contact Contact berth - Workboat (Including Dredgers) 3.16 Incident 1.26

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: 43 Foundering Foundering / Swamping - Workboat (Including Dredgers) 2.38

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: Collision - Workboat (Including Dredgers) ICW

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:48:operation phase followed by workboats, driven by an increase in frequency of dredgers in the

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: • Project layout, navigation chart and vessel movement / dredge schedule

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: Dredging

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: • 3-week berth dredge will require pilotage. The vessels utilised for the rest

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: of the dredging campaign will not require pilotage. Windfarm/ heavy lift

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: • Dredge to 23-buoy would allow 11m draught vessels to manoeuvre. The

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: existing dredge plan would not allow deep draught vessels to manoeuvre

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: • It was questioned whether the turning circle would be dredged? If the

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: need to be dredged. The turning circle is currently dredged to 8.8m. If

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: the turning circle is not dredged the existing Teesport regulations will

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:66: the previous dredging campaign undertaken within the river. It was

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:66: sometimes difficult to get the hopper dredgers to move out of the way,

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:66: risk area. This will be particularly important if the dredgers are very large.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:66: on board the dredgers and construction vessels.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:66: within the channel dredging will increase water depths, and existing

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:66: turning circle at its current dredge levels.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:68: • Project layout, navigation chart and vessel movement / dredge

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:68: pipelines), the South Tees Linklines, lies under the dredge area at the

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:68: • Potential for collision between construction vessels / dredgers

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:68: • Risk of damaging pipeline during dredging operations.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:69: • Flagged as an additional consideration as proposed dredging in

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:70: • Dredging / construction phase and post-works operation phase to

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:70: Dredging programme discussed.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:70: manageable. Recent experience of dredging showed that VTS

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:70: development site is a SSSI and the dredge comes very close to the

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:70: • Channel dredge goes over the top of two pipeline tunnels, depth

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:70: dredging.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:71: • Initially conceived in 2000. Container terminal dredged to 15m

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:71: • Dredger should show RAM shapes / lights.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:71: dredger while loading.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:71: following dredging.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:72: • Hold regular meetings with dredge contractors during dredging

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:72: pilotage would be required for the suction dredger works.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:73: • Project layout, navigation chart and vessel movement / dredge schedule

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:73: dredging in the Tees dock.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:73: (such as channel dredging) cause operational delays (for example at the

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:74: • Project layout, navigation chart and vessel movement / dredge schedule

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:74: • No change (risk should decrease following dredging).

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:75: • Svitzer questioned if any of the river would be shut -off during dredging

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:77: Tanker dredging operations. spillage or small gas release

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:77: dredging operations.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:77: vessel / dredging declared but criteria not Moderate damage to property;

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:77: operations / dredging necessarily met; Very No effect of note. Tier 1 may

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:77: Dredgers) Dredgers)

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:78: dredging operations. not necessarily met; Very

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:78: Collision - Tanker vessel / dredging to property; No effect of property; No effect of note.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:78: ICW General General Cargo dredging operations. declared but criteria not within site; Adverse

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:79: Cargo Vessel vessel / dredging

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:79: Dredgers) necessarily met; Very Adverse regional publicity.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:79: Dredgers) and disembarkation

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:79: ICW Project dredging operations. not necessarily met; Very Adverse international publicity.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:79: General vessel / dredging to property; No effect of property; No effect of note.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: (Including Dredgers)

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: Dredgers) collides with

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: 10 River Collision vessel / dredging be declared but criteria Tier 1 may be declared but 2 1 1 1 5.0 3 3 1 1 4.0 4.07

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: Dredgers) Dredgers)

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: vessel / dredging to property; No effect of

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: (Including Dredgers) operational (oil) spill with little

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: Dredgers) collides with a effect on environmental

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: Workboat vessel / dredging

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: Dredgers) note. Tier 1 may be Tier 1 may be declared but

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: 12 River Collision Dredgers) control failure. Reduced 2 2 1 1 2.0 4 3 1 2 1.0 2.24

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:81: vessel / dredging property; No effect of property; No effect of note.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:81: Collision - Recreational dredging operations.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:82: dredging operations. Fire services with ensuing loss

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:82: channel dredging operations. Fire services with ensuing loss

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:82: Dredgers) property; No effect of note.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:82: 18 River Contact Dredgers) Reduced visibility. Result declared but criteria not 2 1 1 1 4.0 1 2 1 1 2.0 1.67

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:82: Buoy dredging operations. Fire services with ensuing loss

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:83: channel dredging operations. Fire services with ensuing loss

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:83: dredging operations. Fire

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:83: dredging operations. Fire Very short-term disruption prolonged restrictions, major

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:84: dredging operations. Fire suspension of commercial

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:84: 23 River Contact Workboat Dredgers) 1 2 1 1 5.0 2 2 1 1 4.0 3.16

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:84: Dredgers) berth

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:84: dredging operations. Fire short-term disruption to services with ensuing loss of

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:84: dredging operations. Fire term loss of revenue including

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:85: dredging operations. Fire short-term disruption to services with ensuing loss of

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:85: dredging operations. Fire prolonged restrictions, major

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:85: dredging operations. Fire prolonged restrictions, major

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:86: alongside Dredgers) note. Tier 1 may be

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:86: dredging operations. Fire services with ensuing loss of

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:86: Dredgers) berth services with ensuing loss

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:86: dredging operations. Fire services with ensuing loss revenue including minor

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:86: Vessel berth dredging operations. Fire services with ensuing loss of

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:87: dredging operations.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:87: dredging operations.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:87: dredging operations. Fire

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:88: dredging operations. Fire prolonged restrictions, and/or

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:88: (Including Dredgers) of avoiding action with declared but criteria not criteria not necessarily met;

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:88: Dredgers) runs aground 3rd party vessel / necessarily met; Very Very short-term disruption to

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:88: dredging operations. Fire short-term disruption to services with ensuing loss of

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:88: dredging operations. Fire prolonged restrictions, and/or

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:89: dredging operations. Fire short-term disruption to services with ensuing loss of

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:90: Incident - Dredgers) is effect of note. Tier 1 may Minor damage to property; No

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:90: Dredgers) from its short-term disruption to necessarily met; Very short-

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:91: Dredgers) effect of note. Tier 1 may

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:91: (Including vessel / dredging be declared but criteria not

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:91: Dredgers) operations. Excessive necessarily met; Very short-

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:91: swamped by a vessel / dredging be declared but criteria not

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:109: another Tanker party vessel / dredging national support. Chemical spillage or small

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:109: General Cargo General Cargo Vessel party vessel / dredging

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:110: party vessel / dredging injuries or single fatality; Moderate damage

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:110: operations / dredging to property; No effect of note. Tier 1 may be

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:110: (Including Dredgers) be declared but criteria not

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:110: Dredgers) necessarily met; Very short-

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:110: Project Cargo move party vessel / dredging criteria not necessarily met; gas release (COMAH); Adverse international

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:110: party vessel / dredging injuries or single fatality; Moderate damage

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:111: party vessel / dredging may be declared but criteria

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:111: party vessel / dredging Very minor damage to

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:111: (Including Dredgers) necessarily met; Adverse regional publicity.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:111: Dredgers) Temporary suspension of commercial

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:111: Vessel ICW party vessel / dredging criteria not necessarily met; Adverse international publicity. Long-term

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: Collision - party vessel / dredging injuries or single fatality; Moderate damage

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: (Including Dredgers) collides Result of avoiding action note. Tier 1 may be

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: 10 River Collision Dredgers) ICW with another with 3rd party vessel / declared but criteria not 2 1 1 1 5.0 3 3 1 1 4.0 4.07

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: Workboat Workboat (Including dredging operations. Traffic necessarily met; Very short-

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: (Including Dredgers) control failure. Reduced term disruption to services

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: Dredgers) visibility. Fire and explosion. with ensuing loss of

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: Workboat party vessel / dredging

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: Dredgers) collides effect of note. Tier 1 may criteria reached. Small operational (oil) spill

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: Dredgers) ICW failure. Reduced visibility.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:113: Workboat Workboat (Including dredging operations. Traffic

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:113: (Including Dredgers) collides control failure. Reduced

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:113: Dredgers) ICW with a Recreational visibility. Sailing vessel

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:113: Collision - party vessel / dredging injury; Minor damage to injuries or single fatality; Moderate damage

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:113: party vessel / dredging injury; Very minor damage

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:114: dredging operations. Fire

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:114: dredging operations. Fire

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:114: (Including (Including Dredgers) Minor damage to property; No effect of note.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:114: 18 River Contact Dredgers) contacts a Tier 1 may be declared but criteria not 2 1 1 1 4.0 1 2 1 1 2.0 1.67

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:114: dredging operations. Fire to services with ensuing loss

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:115: dredging operations. Fire

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:115: Buoy dredging operations. Fire term disruption to services

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:115: dredging operations. Fire Very short-term disruption restrictions, major disruption to commercial

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:116: dredging operations. Fire

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:116: 23 River Contact (Including Dredgers) Result of avoiding action may be declared but criteria 1 2 1 1 5.0 2 2 1 1 4.0 3.16

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:116: Dredgers) disruption to services with ensuing loss of

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:116: dredging operations. Fire short-term disruption to

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:116: dredging operations. Fire including minor disruption to commercial

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:117: dredging operations. Fire Very short-term disruption services with ensuing loss of revenue.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:117: dredging operations. Fire Very short-term disruption

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:117: dredging operations. Fire Very short-term disruption

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:118: berth - (Including Dredgers) may be declared but criteria

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:118: dredging operations. Fire with ensuing loss of revenue.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:118: Dredgers) services with ensuing loss of

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:118: dredging operations. Fire

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:118: Vessel dredging operations. Fire term disruption to services with ensuing loss of revenue.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:119: dredging operations. inspection.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:119: dredging operations. inspection.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:119: dredging operations. Fire operations, prolonged restrictions, and/or

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:120: dredging operations. Fire

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:120: 35 River Grounding (Including Dredgers) Result of avoiding action note. Tier 1 may be declared but criteria not 1 1 1 1 5.0 2 3 1 1 4.0 2.07

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:120: Dredgers) necessarily met; Very short-

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:120: dredging operations. Fire services with ensuing loss of revenue.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:120: dredging operations. Fire

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:121: dredging operations. Fire services with ensuing loss of revenue.

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:122: Incident - (Including Dredgers) keeping. Extreme weather. effect of note. Tier 1 may

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:122: Dredgers) mooring vessel moving in the port term disruption to services

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:123: Swamping - (Including Dredgers) / PEC holder error. Result of fatality; Moderate damage to property; No

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:123: (Including swamped by a party vessel / dredging criteria not necessarily met; Very short-term

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:123: Dredgers) passing vessel operations. Excessive speed. disruption to services with ensuing loss of

R-2020-0685-ESM-Appendix 9_Navigation Risk Assessment.pdf:123: party vessel / dredging criteria not necessarily met; Very short-term

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:2: Proposals for the disposal of dredged material must demonstrate that they have been

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:2: assessed against the waste hierarchy. Where there is the need to identify new dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3: The Environment Agency’s response to RCBC during scoping consultation listed three Impacts of dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3: • Impacts of dredging on the tidal prism of the estuary, and therefore the extent addressed in Section

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3:Agency (letter • In addition to the initial capital dredge, consideration of the impacts associated impacts associated

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3:dated 14th August with the continued maintenance of the dredged area in future years should be with maintenance

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3:2020) assessed too, in terms of the continued impact to fish, as well as water quality. dredging is made in

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3: • it is likely that dredging activity will need to take into account the protection of Section 6.6.4.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3: during critical migration periods. This would entail limiting dredging activity to water quality are

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3:dredging and offshore disposal activities. For this reason, the study area shown in Figure 6.1 has been

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:4:2005 Maintenance dredging baseline document. ABPmer, 2005

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:4: Tees maintenance dredging baseline Royal Haskoning, 2007b Documents the maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:5: 2019a and 2020a) maintenance dredging and disposal for

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:5: QEII Berth Development – Environmental information about maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:5: dredging operations required for this

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:7: Maintenance dredging baseline

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:7: Documents the maintenance dredging material regularly

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:7: Tees maintenance dredging baseline removed from the Tees estuary, and the potential

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:7: document. implications of maintenance dredging and disposal for

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:7:2009 Royal Haskoning, 2009 dredging regimes and materials arising from above and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:7: possible effects from the proposed dredging operations

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:8:In addition, an analysis of historical data, including dredge and disposal volumes and land reclamation from

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:10: predict movement of suspended sediment from the proposed dredging and disposal activities by

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:10: was run for the entire dredging and disposal period under astronomic tidal and daily mean fluvial

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:10:the harbour and marina berths. All of these locations require dredging to maintain a safe navigable depth

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:12:of reaches require maintenance dredging to remove both sands and silts. The volume of sediments dredged

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:12:dredged from the river mouth and navigation approach channels within Tees Bay, with river silts mainly

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:12:dredged from within the berths and river channel further upstream in the Tees estuary.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:12:to allow bypassing of sediment, but observed accumulations upstream, and a 24% reduction in the dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:(Newlyn) (7.15m below CD). As a result of training works and deepening by dredging, the current depth at

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:the mouth is about double this natural level. Dredging and training works have occurred since the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:establishment of the first dredged channel of 4.3m from Middlesbrough Docks to the sea after 1853.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:only notable project undertaken since that time has been the dredging and re-strengthening of No.1 Quay

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:sediments) which is offset by maintenance dredging and disposal at offshore licenced disposal site Tees

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:PDT is required by the Tees and Hartlepool Port Authority Act 1966 to publish dredge depths; the published

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:Admiralty Charts show the maximum licensed depths for the channel and berths. A summary of the dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:14.1m below CD were originally dredged to a deeper depth.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:access. The berth pocket within Tees Dock has been dredged to a depth of 14.5m below CD, with the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:general dock area dredged to 10.9m below CD.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:34:induced currents, vessel induced forces and re-suspension by dredging operations. These last two were

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:35: • Marine input: Comparison of the above figures with the present knowledge of the dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:35:Dredging activities

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:35:As part of this responsibility, PDT must maintain the advertised dredge depths within the defined areas

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:35:dredging in the thirteen reaches of the river shown in Figure 6.29 (as well as in berths within the Tees and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:35:within Tees Bay). Maintenance dredging practices have remained unchanged since 2005.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:35: Figure 6.29 Maintenance dredging reaches within the River Tees

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:Most dredging within the Tees occurs in the approach channel and low-middle estuary in order to maintain

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:access to berth pockets and impounded docks. TSHDs are currently used for the majority of the dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:dredgers have active bottom door offloading systems.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:PDT also operates its own 11m plough to supplement ongoing suction dredging operations through the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:removal of isolated high spots on the riverbed, primarily in frontages or confined areas. Plough dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:dredgings requiring disposal to sea.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:A summary of the maintenance dredged volumes (m³) by each reach from 2001 to 2019 is provided in Table

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:6.15 and shown in Figure 6.30. Data on dredging was obtained from PDT and extends the time series

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:originally presented in Royal Haskoning (2008) from 2001 to 2019. No dredging has been required within

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:Reach 0 during the reporting period. Note that these data also include maintenance dredging volumes from

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36: Volume of dredged material

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:Figure 6.30 Summary of volumes (m3) dredged and deposited offshore during the period 2001 to 2019

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:The total volume of maintenance dredged material has decreased below the average annual volume for the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:Over the 19-year period, the average volume maintenance dredged from the Tees reaches is 740,266m3,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:37:Table 6.15 Summary of the total volumes of dredged material disposal (m3) from 2001 to 2019

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:39:Maintenance dredge material (between 2001 and 2018) comprised around 180,000m3 of mud, mostly found

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:39:A review of the dredged sediment quality data is presented in Section 7.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:39:general, Tees Bay A (TY160) is used for the disposal of maintenance dredge arisings while Tees Bay C

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:39:(TY150) is used for capital dredge arisings. Tees Bay B (TY110) and Tees Bay Foreshore (TY170) are

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:39: dredged material. Some 1999, associated with the construction of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:39: 54 42.600N 00 58.600W maintenance dredging has been downstream Ro-Ro berths. Typical annual

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:40:Figure 6.31 Location of offshore maintenance and capital dredge disposal sites

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:40:6.5.2 Capital dredging and offshore disposal of dredged sediments

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:40:Capital dredging is required to: (i) create a berth pocket adjacent to the new quay; (ii) deepen the river

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:pocket, creating a finished depth of 13.6m below CD. Dredging of the channel and berthing pocket will yield

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:In total, approximately 1,800,000m3 of material will be dredged from the areas described over an

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:as ‘soft’ material) and Mercia Mudstone (classed as ‘hard’ material). Dredging will be undertaken using a

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:Each year, between 25 – 30 million tonnes (wet weight) of dredged marine sediments from ports, harbours

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:dredged from the proposed scheme will be taken to the Tees Bay C licensed offshore disposal site, some

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:The capital dredging within the river, using TSHD and BHD, and the disposal activities at the licensed

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:modelling of the sediment dispersion associated with the dredging and disposal activities, as well as the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:and run for the entire four month duration covering all proposed dredging and disposal activities. Wave

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:disturbance effects have been included. The dredging methods, schedule and sediment release settings

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:movement of dredgers and transport barges (including dredging, sailing, disposal and downtime) such that

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:sediment releases have been made near continuously throughout the dredging operations (except for

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:allowed periods of downtime) from along the centre line of the dredged areas, running along the axis of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:The overall dredging and disposal operations may be considered as four stages in the following sequence:

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41: • Stage 1: BHD working to dredge the upper soft material (above -5m CD) in the berthing pocket and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41: • Stage 2: BHD and TSHD working in parallel to dredge the middle soft material (below -5m CD) in

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41: • Stage 3: BHD working to dredge the bottom hard material in the berthing pocket and river channel

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41: • Stage 4: BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:Results from the sediment dispersion modelling are discussed in turn for the dredging and disposal activities.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42: throughout the entire four-month period covered by the dredging and disposal simulations, but only

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42: extents of enhancement in SSC from any stage of the dredging or disposal operations during the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42: relevant stage of the dredging programme. It is important to note that this type of figure does not

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42: become affected by a plume at some point during the dredging or disposal activities (in some areas

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:Dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:end of the dredging transect to the north-eastern end.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:Peak concentrations from dredging are always local to the point of disturbance from dredging at the riverbed,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:on timing of release with respect to the phase of the tide and location of dredging within the berthing pocket

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:release from the south-western corner of the dredging transect during the ebb phase (Plot A) and flood

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:phase (Plot D) of the tide when the release is towards the north-eastern end of the dredging transect.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:When the dredger is at the south-western end of the transect, the maximum spatial extent of the plume on

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:Middlesbrough Dock. When the dredger is at the north-eastern end of the transect, the extent of the plume

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:43:Figure 6.32 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:43:capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:44:Figure 6.33 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:44:capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:45:Figure 6.34 (Plot C) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:45:capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:46:Figure 6.35 (Plot D) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:46:capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:46:In order to determine a maximum ‘zone of influence’ from Stage 1 of the dredging activities, the maximum

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:46:values of enhancement in SSC from any phase of the dredging operations during Stage 1 have been plotted

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:46:release points along the dredging transect at the proposed scheme site. Further upstream and downstream

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:46:of the areas directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a short distance

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:46:from the point of dredging, and at the peripheries below 20mg/l) before merging with low background

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:47:Figure 6.36 Maximum enhanced SSCs arising from dredging activities during Stage 1 of the capital

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:47:dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:47:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:47:time, moving from the south-western end of each of two parallel dredging transects to the north-eastern

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:47:from the two dredger types, as show in Figures 6.37 and 6.38 (Plot A and Plot B show releases from the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:47:south-western and north-eastern ends of the two parallel dredging transects respectively). However, the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:48:Figure 6.37 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 2 of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:48:capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:Figure 6.38 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 2 of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:The maximum ‘zone of influence’ from Stage 2 of the dredging activities is shown in Figure 6.39 (please

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:note the earlier caution in interpreting this type of figure). This shows that during Stage 2 of the dredging,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:becomes wider; and (iii) at times two plumes are created by the in-parallel dredging activities. Despite these

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:release points along the dredging transects at the proposed scheme site. Further upstream and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:downstream of the areas directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:short distance from the point of dredging, and at the peripheries below 20mg/l) before merging with low

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:Figure 6.2 Maximum enhanced SSCs arising from dredging activities during Stage 2 of the capital

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:end of the dredging transect to the north-eastern end.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:of the dredging transect during the ebb phase (Plot A) and flood phase (Plot B) of the tide. Similar results

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:is towards the north-eastern end of the dredging transect. It can be seen that the maximum SSC values

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:and the spatial extents of the plume arising from Stage 3 of the dredging are much lower than those

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:of dredging is notably lower.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:51:Figure 6.40 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:51:capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:52:Figure 6.41 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:52:capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:53:Figure 6.42 (Plot C) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:53:capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:54:Figure 6.43 (Plot D) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:54:capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:54:The maximum ‘zone of influence’ from Stage 3 of the dredging activities is shown in Figure 6.44 (please

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:54:note the earlier caution in interpreting this type of figure). This shows that during Stage 3 of the dredging,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:54:during both Stages 1 and 2 of the dredging (note the slight plume shown in the mid channel is a remnant of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:54:the Stage 2 dredging, which has not fully dissipated before Stage 3 commences). During Stage 3, the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:55:Figure 6.44 Maximum enhanced SSCs arising from dredging activities during Stage 3 of the capital

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:55:dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:55:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:55:end of each of two parallel dredging transects to the north-eastern end.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:55:Peak concentrations from dredging are always local to the point of disturbance from dredging at the riverbed,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:55:times in the dredging cycle, SSC values can become enhanced by typically 10 to 20mg/l between the point

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:56:Figure 6.45 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 4 of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:56:capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:57:Figure 6.46 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 4 of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:57:capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:57:The maximum ‘zone of influence’ from Stage 4 of the dredging activities is shown in Figure 6.47 (please

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:57:note the earlier caution in interpreting this type of figure). This shows that during Stage 4 of the dredging,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:57:stages, the maximum SSC concentrations remain local to the point of dredging within the turning circle (up

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:57:to a few hundred mg/l). Further upstream and downstream of the areas directly dredged, the SSC

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:57:enhancement drops markedly (typically below 50mg/l a short distance from the point of dredging, and at the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:58:Figure 6.47 Maximum enhanced SSCs arising from dredging activities during Stage 4 of the capital

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:58:dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:58:The sediment plumes that arise from the four stages of the dredging could potentially affect areas of riverbed

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:58:of influence’ from Stages 1 - 4 inclusive of the dredging activities has been plotted in Figure 6.48 for the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:58:that during the predicted four months of dredging, all individual or coalesced plume effects are confined to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:58:Furthermore, all plumes associated with dredging of the berthing pocket and river channel in the vicinity of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:58:whilst all plumes associated with dredging of the turning circle are confined to the left bank (north of centre

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:59:Figure 6.3 Maximum enhanced SSCs (near-bed layer) arising from dredging activities during Stages 1 -

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:59:4 inclusive of the capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:60:Figure 6.49 Maximum enhanced SSCs (near-surface layer) arising from dredging activities during Stages

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:60:1 - 4 inclusive of the capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:60:Sediment suspended within the dredging plumes will fall to the riverbed, either soon after disturbance or

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:60:spillage occurring during the dredging operation (for coarser-grained sediment fractions), or at a point in

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:60:by this deposition. It can be seen that much of the sediment falls to the bed within the dredged areas (from

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:60:where it will be re-dredged to achieve the necessary bed depths), whilst the deposition that occurs in other

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:61:Figure 6.50 Maximum riverbed thickness change due to sediment deposition arising from dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:61:activities during Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:61: would be affected by the zone of influence of the dredging operations].

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:appreciable extent, with peak enhancements of between 15 and 85 mg/l during Stage 2 of the dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:programme (Figure 6.52). Whilst Stage 1 of the dredging also causes some enhancement in SSC at point

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:elevations in SSC drop rapidly after each dredging plume has dispersed, and return to baseline levels at

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:points of downtime or between successive dredging stages. There are no significant effects noted at the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:water quality sampling points during Stage 3 of the dredging and only negligible effects for a short duration

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:a very low value (6mm) throughout the entire dredging programme (Figure 6.53) and in reality some of this

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:material will become re-suspended by tidal currents or dredged during maintenance campaigns of the river

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:At the mudflat monitoring points, it is only during Stage 4 of the dredging that any discernible effects are

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:At the navigation monitoring points on the north bank, it is only during Stage 4 of the dredging that any

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:At the navigation monitoring points on the south bank, it is throughout Stages 1 and 2 of the dredging that

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:Stages 3 and 4 of the dredging, only negligible effects are noted, equivalent to variations within the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:63:re-suspended by tidal currents or will be removed during maintenance dredging campaigns of the river

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:68:is licensed for the disposal of dredged sediment and is routinely monitored as part of a national programme.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:68:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:68:The above cycle is repeated throughout all disposal events associated with Stage 1 of the dredging,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:69:dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:70:dredging, the following descriptions focus on where particular aspects of subsequent stages differ from the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:70:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:70:TSHD. The pattern of dispersion following discharge of the BHD-dredged material is as described for Stage

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:70:cessation of TSHD discharge) the subsequent BHD-dredged material disposal is commenced at a common

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:71:dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:72:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:73:dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:74:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:75:dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:76:dredging programme has been plotted in Figure 6.64 for the near-bed layer of the water column (please

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:77:inclusive of the capital dredging programme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:78:event during Stage 1 of the capital dredging programme – local scale

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:79:event during Stage 1 of the capital dredging programme – wider scale

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:The river dredging and offshore disposal activities will both cause plumes of sediment to form close to the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:During dredging, there will be a release of sediment particles from the deliberate physical disturbance to the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:riverbed and, more significantly, from overflow when dredged material is loaded into the dredger’s hopper

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:(for TSHD) or the transport barge (for BHD). Such releases will be ongoing through each dredging cycle

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:until the dredging activity ceases due to downtime (e.g. adverse weather, vessel maintenance) or at

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:scheduled breaks between stages of dredging activity. During offshore disposal, a single hopper load will

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:Once a plume is generated, the highest SSC values will be recorded at the point of river dredging or offshore

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:During some stages of the dredging and disposal activities, most notably when both TSHD and BHD are

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:The plume effects arising from the river dredging are characterised by a short-lived localised increase in

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:SSC by a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial extent

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:and reduction in concentration over following hours. Since the dredging is a near-continuous operation, the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:extents during the four different stages. During Stages 1-3 the dredging-related plume effects will be largely

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:Dock and Tees Dock. During Stage 4 the dredging-related plume effects will be largely confined to the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:and the Oil Terminal. Other than within the dredged areas, sediment deposition on the riverbed will be of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:occurs in the river channel or at jetties, it will subsequently be dredged as part of ongoing maintenance

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:dredging regimes, whilst material deposited back into the newly dredged areas will be re-dredged during

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:Overall, the changes in SSC and sediment deposition arising from the river dredging and offshore disposal

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:83:dredging to the Tees Dock turning circle and approach channel and to create a berth pocket.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:90: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:90: dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:90: deposition will require periodic dredging to maintain the design depths.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:that the increase in mean tidal prism as a result of the new quay’s set-back alignment and dredging of part

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:6.6.4 Maintenance dredging and offshore disposal of dredged sediments

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:In order to provide an estimate of the present annual average maintenance dredging undertaken in the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:the proposed new quay), it can be assumed that the affected area covers approximately half of dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:reach 6 and approximately one-third of dredging reach 5 (these ‘dredging reaches’ are shown in the earlier

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:Between 2001 and 2019 inclusive, the average annual maintenance dredging in reach 5 was 3,585m3 and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:maintenance dredging is evenly located through each dredging reach so that the spatial scaling described

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:maintenance dredging is likely to be due to the low levels of suspended sediment measured in this reach of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:the river. By far the greatest contributions to the overall annual maintenance dredging total come from close

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:to the barrage in dredging reaches 1-3 inclusive or towards the estuary mouth in dredging reaches 8-11

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:inclusive. All non-contaminated material from maintenance dredging is usually taken to the Tees Bay A

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:a requirement for more material to become from this local reach dredged annually. Recognising this, a 10%

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:increase in annual maintenance dredging requirement may be a reasonable assumption recogising the low

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:baseline SSCs in this reach. Even under this scenario, the maintenance dredging from this reach local to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:the new quay will still yield a very low overall contribution to the net annual maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:requirements from the estuary as a whole. Therefore the potential increase in maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:dredging and offshore disposal regimes.

R-2020-0685-ESM-cil_questions phase 2.pdf:1: DEMOLITION OF EXISTING REDUNDANT QUAY STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND ASSOCIATED

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1109_Appendix 15_Flood Risk Assessment.pdf:8: • capital dredging (to locally deepen the Tees Dock turning circle and approach channel and to create

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1109_Appendix 15_Flood Risk Assessment.pdf:8: • offshore disposal of dredged sediments; and,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_2. Need for the proposed scheme.pdf:1:(90m wide) and the associated dredging requirements. Consultation with PD Ports’ Harbour Master during

R-2020-0685-ESM-PC1084-RHD-SB-DN-DR-C-1388_P01 Construction Sequence.pdf:1: DREDGE TO Newcastle upon Tyne, NE1 4EE

R-2020-0685-ESM-PC1084-RHD-SB-DN-DR-C-1388_P01 Construction Sequence.pdf:1: DREDGE LEVEL.

R-2020-0685-ESM-PC1084-RHD-SB-DN-DR-C-1388_P01 Construction Sequence.pdf:1: CLAY DREDGE LEVEL CLAY

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:2: Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:6: 7 P roposedDredg

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:8: P roposedDredg

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:9: P roposedDredg

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:15: the proposed channel dredge, berth pocket and wharf demolition footprint and includes the North

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:26:12.5.1 Loss of supporting habitat due to dredging / excavation and demolition

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:26:The dredging footprint in the main channel does not overlap with the intertidal habitat available at North

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:supporting habitat within the footprint of the proposed dredging and excavation represents just 0.3% of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:As discussed further in Section 13.5.1, dredging and excavation activities resulting in an increase in SSC

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:The area that may be affected by increases in SSC during dredging has been described in Section 6.5.2.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:In summary, the largest sediment plumes are likely to arise during Stage 2 of the dredging (i.e. BHD and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:TSHD working in parallel to dredge in the berth pocket and the main channel). During this stage, the zone

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:of influence extends approximately 750m downstream and 2,500m upstream of the dredged area (see

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:Stage 2 dredging, presented in Section 6.5.2 indicates that significant SSC excesses from the capital

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:dredging are confined to the dredging transects and are predicted to decrease significantly with increased

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:distance from the dredging vessel, both laterally and along the line of the vessel, with plumes diminishing

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:28:the dredging campaign may overlap with part of the common tern breeding period.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:28:affected by dredging, as detailed in Section 12.3.2). The peak count in 2020 was a decrease on previous

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:28:important for foraging and therefore terns may be sensitive to the turbidity caused by dredging operations

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:28:species (e.g. Sandwich tern). Furthermore, the occurrence of frequent (almost daily) maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:28:As described above, the zone of influence of the Stage 2 dredge presented in Figure 6.39 significantly

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:28:levels are only predicted to exceed baseline levels during the dredging campaign (a period of approximately

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:28:2 dredging will only comprise approximately one month of the approximately five month dredging campaign,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29:and the other stages of the dredge campaign would result in a smaller plume than that described for Stage

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29: therefore be undertaken in long strips along the axis of the estuary rather than dredging across

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29: the width of the river. This is to reduce both the extent and impact of the dredged plume, as any

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29: channel. This approach has been proposed for other capital dredge operations in the Tees, such

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29:The deposition of fine sediment within intertidal areas due to capital dredging has the potential to affect

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29:dredging, is presented in Section 6.5.2. Fine sediment will be deposited within minutes or hours if carried

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29:in suspension from the point of release. Most falls within the dredged areas, whilst deposition elsewhere is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29:of the effects of capital dredging and therefore a negligible impact is predicted on the waterbirds relying on

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:30:from dredging and demolition works, represented as the day / night LAeq) at most receptor locations will be

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:33:of construction personnel, plant / machinery, dredgers / other vessels and construction lighting. In particular,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:33:during dredging of the main channel, dredging vessels will operate in close proximity to the North Tees

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:33:Mudflat and Vopak Foreshore. Dredging is due to continue for a period of approximately five months. This

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:33:end of the proposed scheme footprint are within 300m of the mudflat (not including dredging activities, which

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:During dredging of the main channel and the turning circle, dredging vessels will operate in close proximity

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:to the North Tees Mudflat and Vopak Foreshore. Most notably, sections of the channel dredge footprint run

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:adjacent to the North Tees Mudflat (this is illustrated in Figure 11.2), therefore the presence of dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:maintenance dredging vessels which operate on an almost daily basis within the channel, including within

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:that there will be further habituation over the dredging period and any effects would lessen through the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:Disturbances to birds at Vopak Foreshore would be limited to the very short-term dredging within the Tees

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:limited to Stages 1 to 3 (a period of approximately 4.5 months), but only during times when the dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:transect runs close to the mudflat (for example, when dredging the southern half of the river it is unlikely to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:and the mudflat itself extends over a kilometre upstream of the dredge footprint. As such, any displacement

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:Given the above, it is anticipated that visual disturbances from dredging operations would have a minor

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:The mitigation measures outlined in Section 12.5.2 would ensure that dredging vessels only operate along

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:the axis of the river, rather than across it, thus minimising the frequency of occasions whereby the dredger

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:operates adjacent to the North Tees Mudflat. There is no practical way of avoiding dredging activities since

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:35:as a result of dredging activities and residual noise from land-based piling works. The assessment

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:35:concludes that there may be a minor adverse effect as a result of the dredging leading to fish moving away

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1112_Appendix 10_Transport Statement.pdf:5: substation), capital dredging (to deepen the northern half of the Tees Dock turning circle, a section

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1112_Appendix 10_Transport Statement.pdf:5: of the existing approach channel and to create a berth pocket), offshore disposal of dredged

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1112_Appendix 10_Transport Statement.pdf:20: the 110 employees, 10 would be associated with offshore dredging and would therefore not travel

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1112_Appendix 10_Transport Statement.pdf:21:Dredging

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1112_Appendix 10_Transport Statement.pdf:21:Dredging 20 4 By sea 0 0 0 0

R-2020-0685-ESM-21 02 05 - Quayside Application.pdf:1: DEMOLITION OF EXISTING QUAY STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT OF NEW

R-2020-0685-ESM-21 02 05 - Quayside Application.pdf:1: DEMOLITION OF EXISTING QUAY STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT OF NEW

R-2020-0685-ESM-21 02 05 - Quayside Application.pdf:1: approval can be granted for the proposed works, both landside and the dredging proposals in the

R-2020-0685-ESM-CON LAND 685.pdf:1: STRUCTURES, CAPITAL DREDGING AND

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_11. Terrestrial ecology.pdf:16: P roposedDredg

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_11. Terrestrial ecology.pdf:23:vessels or disturbed by underwater noise or dredging activities. The vessels used in construction activities

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:5: “Demolition of existing redundant quay structures, capital dredging and development of new

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:5: • PC1084-RHD-SB-EN-DR-EVC-1113_P01 Dredging Plan

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:6: • The Seaward Works – these comprise dredging of the approach channel and berth pocket,

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:6: the disposal of the dredged material at sea. Planning consent is not required for these works

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:10: dredging to create a berth pocket and construction and operation of a new quay (to be set back

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:10: required (90m wide) and the associated dredging requirements. Consultation with PD Ports’

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:10: There would, therefore, be a requirement for dredging of estuarine (marine) sediments and

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:10: scheme (and consequently the dredging requirements) has been designed to avoid the pipe

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:12:3.22 The Phase 1 quay wall would extend 125m either side of the berth pocket to retain the dredged

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:12: dredging will need to take place as part of each phase.

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:24: structures and capital dredging, increased suspended sediment concentrations and increased

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:24: regime and impacts associated with maintenance dredging. All operational phase impacts are

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:24: auditory injury to marine mammals from dredging has been assessed as negligible. The

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:24: dredging and construction, vessel strikes are not anticipated to be significant due to the existing

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:26: concentrations during the capital dredging works, notably if creating barrier effects that may

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:26:5.36 Alteration of subtidal habitat due to the proposed dredge is expected to be temporary and would

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:26: be similar to that already experienced through regular maintenance dredging that is already

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:26:5.37 Based on the expected underwater noise levels associated with capital dredging activities, sound

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:26: is expected that fish will already be habituated to regular dredging noises within the estuary and

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:27: dredged on an almost daily basis, the area within the footprint of the scheme is unsuitable for

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:27: of the proposed scheme (dredging and construction of the new quay) are in keeping with the

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:27: reduced by disturbance from previous dredging. Archaeological material may still survive, albeit

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:30: principally as a result of the proposed dredge. However, on further consideration of the

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:30: before any works commence. Best practice measures would be adopted during the dredging

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:30: dredging in long strips to ensure the plume is located only on one side of the channel at a time

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:32: Infrastructure along the river bank at South Bank, capital dredging to create a berth pocket and

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:32: • The Seaward Works – these comprise dredging of the approach channel and berth pocket,

R-2020-0685-ESM-61586 Quay Planning Statement 09-11-20.pdf:32: the disposal of the dredged material at sea. Planning consent is not required for these works

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_18. Air quality.pdf:8: Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_18. Air quality.pdf:11: Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_18. Air quality.pdf:13: Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_18. Air quality.pdf:18: Dredging (one backhoe, one TSHD, two 6 20

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_18. Air quality.pdf:18:Vessels used for the proposed dredging would be in use for a relatively short amount of time (approximately

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:1:maintenance dredging, movement of vessels (including vessels associated with the demolition of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:1:mammals from the offshore disposal of dredged sediments are assessed in Section 26.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:4:estimate the noise levels likely to arise during the dredging works at the proposed scheme. More information

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:4:on the methodology used in the underwater noise modelling for the dredging works in Section 10.5.1.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:9:point of the proposed dredge footprint. The 2019 surveys occurred for a period of 47 days throughout the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:9:usage is relatively low in and around the proposed dredge footprint plus 1km buffer, with a grey seal density

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:9:dredging (Section 10.5 and 10.6). The density estimate of 0.014/km2 has been used to determine the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:11:at the Farne Islands (117km from proposed dredge area), Donna Nook in the Humber Estuary (173km from

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:11:proposed dredge area), the Wash (233km from proposed dredge area) and at Blakeney Point (244km from

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:11:proposed dredge area). With smaller haul-out sites located at Ravenscar (57km from proposed dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:11:area), Filey Brigg (81km from proposed dredge area) and at Seal Sands (3km from the proposed dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:12:Seals Sands is located approximately 3km from the proposed dredge footprint at its closest point. The Tees

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:12:usage is relatively low in and around the proposed dredge footprint plus a 1km buffer, with a harbour seal

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:14: 0.00008/km2 for dredge footprint plus 1km

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:14: 0.0003/km2 for dredge footprint plus 1km

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:14:disposal site. The winter area of the Southern North Sea SAC is located 127km from the proposed dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:14:The proposed dredge area is located within the Teesmouth and Cleveland Coast SSSI. Breeding harbour

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:14:Pupping tends to occur in June and July on the intertidal mud of Seal Sands (3km from the proposed dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:16:through the noise exposure event (dredging activity). This is a highly conservative approach, and likely has

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:16:the modelled noise levels for dredging works fell below 130 dB re 1µPa, they were of the order of ambient

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17:publicly available (Subacoustech, 2018) has been used to assess the impact ranges of dredging works

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17: • Backhoe dredger with an estimated sound source of 165.0 dB re 1 µPa SPLRMS @ 1m.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17:proposed dredging in the Tees Dock turning circle to the coast).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17:source levels predicted for the dredging activities, any marine mammal would have to remain in close

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17:a result of underwater noise during dredging activities (Table 10.9) has been assessed based on the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17:maximum number of animals that could be present in the maximum impact areas for dredging (Table 10.8).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17:berth pocket, would be the same or less than those modelled for dredging activities.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17:dredging activities based on Hartlepool approach channel underwater noise modelling (Subacoustech, 2018)

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17: et al., 2019) dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17: SEL during dredging 0.003km2

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:18:PTS as a result of underwater noise associated with dredging activities

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:18: dredging 0.00000024 grey seal Negligible / very low magnitude

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:18:The magnitude of the potential impact of PTS as a result of dredging noise is negligible / very low for harbour

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:18:The potential risk of any PTS that could result from underwater noise during the dredging works or other

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:18:activities would be limited to the immediate vicinity of the dredging works while they are taking place only.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:18:dredging works.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:18: dredging very low

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:The dredging process emits continuous, broadband sound into the marine environment. SPLs can vary

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:widely, dependent on the dredger type, operational stage, or environmental conditions (e.g. sediment type,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:factors will also affect the propagation of sound from dredging activities and along with ambient sound

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:Based on reviews of published sources of underwater noise during dredging activities (e.g. Thomsen et al.,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:mammals may be exposed to during dredging activities are usually below auditory injury thresholds or PTS

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:in marine mammals as a result of dredging activity is highly unlikely.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:area during dredging activities. Marine mammals may exhibit varying behavioural reactions intensities as a

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:in the berth pocket, would be the same or less than those modelled for dredging activities.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:case location (closest point of the proposed dredging in the Tees Dock turning circle to the coast).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:display a fleeing response, as a result of underwater noise during dredging activities (Table 10.12) has been

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:(Table 10.11) for proposed dredging activities.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:dredging activities based on Hartlepool approach channel underwater noise modelling (Subacoustech, 2018)

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20: et al., 2019) dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20: dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:result of underwater noise associated with proposed dredging activities

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20: during dredging (0.000000004% of the NE England MU) (temporary effect with less than 1% of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:The magnitude of the potential impact of TTS and fleeing response as a result of dredging noise, is negligible

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:The potential risk of any TTS or fleeing response that could result from underwater noise during the dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:works would be limited to the immediate vicinity of the dredging works while they are taking place only. The

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:21:dredging works.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:21: dredging very low

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:22:vessels during the proposed dredging has been assessed based on a very precautionary worst-case of up

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:22:risk (Table 10.14). The proposed dredge footprint is approximately 0.38km2 in size (based on the dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:22:be present in the dredge footprint that could be at potential increased vessel collision risk

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:22: dredging (5% of Negligible / very low magnitude

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:22: animals in dredge 0.000002 grey seal

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:22:potential increase in collision risk with vessels during dredging has been assessed as negligible (not

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:23:Table 10.15 Assessment of impact significance for increased collision risk from vessels during dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:23: dredging very low

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:24:the proposed dredge footprint. Due to the distance of the haul-out site from the proposed scheme, there is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:24:no potential for the dredge vessels to cause any disturbance to seals hauled out at the site, including the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:24:dredged material offshore, would maintain the same distance from the sandbanks as vessels currently

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:24:The proposed dredging and other underwater activities (namely demolition and removal of existing

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:24:relied upon solely. Therefore, any increases in suspended sediments during dredging or other activities will

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:24:Potential impacts on fish species during dredging and other underwater activities can result from the physical

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:25:Therefore, there sensitivity to any changes in prey availability as a result of the proposed dredging is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:25:prey availability during the proposed dredging has been based on the dredge footprint of 0.38km2 and the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:25:be present in the dredge area that could be impacted by any changes to prey availability

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:25: dredge area Negligible / very low magnitude

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:25: dredge area Grey seal Low

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26: • Underwater noise during dredging;

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26: • Vessel interactions (collision risk) during dredging and operational use of the quay;

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26: • Disturbance at seal haul-out sites during dredging;

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26: • Changes in water quality during dredging; and,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26: • Changes to prey resource during dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:It is important to note that there will be no changes to the overall maintenance dredging strategy currently

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:undertaken by PDT during operation, with maintenance dredging currently undertaken virtually daily within

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:dredging during the operational phase of the proposed scheme.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:10.6.1 Underwater noise during maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:Underwater noise predicted to be generated from maintenance dredging is considered to be the same or

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:less as the underwater noise predicted to occur from the capital dredging activities. Therefore, the impact

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:of maintenance dredging will be the same or less as that assessed for the construction phase (see Section

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:the maximum number of animals that could be impacted as a result of underwater noise during the dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:10.6.2 Vessel interactions (collision risk) during maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:The potential for any increased collision risk during the maintenance dredging operations is considered to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:maintenance dredging will be the same or less as that assessed for the construction phase (see Section

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:number of animals that could be at increased collision risk during the maintenance dredging. The impact

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:significance for harbour porpoise, minke whale, grey seal and harbour seal during maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:dredging activities. The residual impact would be of negligible significance.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:10.6.3 Disturbance at seal haul-out sites during maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:The potential for any disturbance at seal haul-out sites during maintenance dredging is considered to be the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:same or less as that assessed for the dredging activities during the construction phase, and therefore the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:impact significance for any disturbance at seal haul-out sites during maintenance dredging has been

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:10.6.4 Changes in water quality during maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:The potential impact of any changes to water quality during maintenance dredging is considered to be the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:same or less as that assessed for the dredging activities during the construction phase, and therefore the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:impact significance for any changes to water quality during maintenance dredging has been assessed as

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:10.6.5 Changes to prey resource during maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:The potential impact of any changes to prey resources during maintenance dredging is considered to be the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:same or less as that assessed for the dredging activities during the construction phase, and therefore the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:impact significance for any changes to prey resources during maintenance dredging has been assessed as

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:3:3.6 Capital dredging of marine sediments and excavation of soils / landside materials within

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:3:3.8 Disposal of dredged material 17

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:7:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL 470

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:7:26.2 Modelling the dispersion and deposition of capital dredged material and effect on water

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:8:28.5 Detailed assessment – C2 Capital dredging 522

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:9:In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of dredged

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:9:dredge and disposal activities).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:9: which covers the potential zone of influence of both the dredge and disposal activities.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:10: P roposedDredg

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_21_Socio-economics.pdf:18:dredging activity which are likely to translate to very small direct employment effects. As such, adopting the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_21_Socio-economics.pdf:18:occur during demolition, quay construction, excavation and dredging phases. Assuming a gradual ramping

R-2020-0685-ESM-HSL-210211151351-321-FinalOutcome.pdf:1:Comments: DEMOLITION OF EXISTING REDUNDANT QUAY STRUCTURES, CAPITAL DREDGING AND

R-2020-0685-ESM-DECISION NOTICE.pdf:1: CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND

R-2020-0685-ESM-DECISION NOTICE.pdf:1: PC1084-RHD-SB-EN-DR-EVC-1113_P01 Dredging Plan received by the LPA on

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: 3. ALL DREDGE SLOPES ARE ASSUMED TO BE 1:3. TO BE

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: 7. PROPOSED SCHEME AVOIDS DREDGING OVER THE

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: DREDGE DEPTH WILL NEED TO INCREASE BY THE

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: MAINTAINED DREDGE LEVEL -10.4mCD

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: DESIGN DREDGE LEVEL -11.0mCD Pipelines

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: PRELIMINARY DREDGING

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: MAINTAINED DREDGE LEVEL -10.4mCD BM CF TJR

R-2020-0685-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: DESIGN DREDGE LEVEL -11.0mCD DATE SCALE REF.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:1:ABPmer (2005). Tees Maintenance Dredging Baseline Document. Report R.1149.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:1:Central Dredging Association (CEDA) (2011). Underwater sound in relation to dredging. Position Paper - 7

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:1:November 2011. Available at URL: http://www.dredging.org/documents/ceda/downloads/2011-

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:4:Halcrow (1991). Tees Estuary Dredging Review. Report for Tees and Hartlepool Port Authority.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:5:HR Wallingford (1992). Tees and Hartlepool Port Authority. Review of Dredging. EX 2580.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:6:sediment plumes arising from dredging. Construction Industry Research and Information Association

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:6:Jones, D. and Marten, K. (2016). Dredging sound levels, numerical modelling and EIA. Maritime Solutions

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:10:Pirotta, E., Laesser, B. E., Hardaker, A., Riddoch, N., Marcoux, M., and Lusseau, D. (2013). Dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:10:(2011). Measurement of underwater noise arising from marine aggregate dredging operations. Marine

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:10:Royal Haskoning (2007a). Tees Maintenance Dredging Baseline Document. May 2007.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:11:Royal HaskoningDHV (2017a). Tees Maintenance Dredging Annual Review 2016.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:11:Royal HaskoningDHV (2018). Tees Maintenance Dredging Annual Review 2017.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:11:Royal HaskoningDHV (2019a). Tees Maintenance Dredging Annual Review 2018.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:11:Royal HaskoningDHV (2020a). Tees Maintenance Dredging Annual Review 2019.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:12:(2011). The measurement of underwater noise radiated by dredging vessels during aggregate extraction

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:13:F. (2014). A review of impacts of marine dredging activities on marine mammals. – ICES Journal of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:13:WODA (2013). Technical Guidance on: Underwater Sound in Relation to Dredging. World Organisation of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:13:Dredging Associations.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:1:along the river bank at South Bank (including an electrical substation), capital dredging (to deepen the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:1:berth pocket), offshore disposal of dredged sediments and construction and operation of a new quay (to be

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:2:would all be removed to avoid issues arising during the subsequent capital dredge. It is proposed that the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:3: BERTH POCKET DREDGING AREA BERTH POCKET DREDGING AREA

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:3: CHANNEL DREDGING AREA CHANNEL DREDGING AREA

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:3: DREDGING AREA

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:3.6 Capital dredging of marine sediments and excavation of soils /

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:Drawing PC1084-RHD-SB-EN-DR-EV-1113 below shows the proposed dredge footprint. For the purposes

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:of this EIA, a dredge envelope has been assessed (Figure 1.1). As shown on the drawing, dredging is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:dredging to create a berth pocket. The Tees Dock turning circle and areas of navigation channel are

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:dredged to a depth of 15.6m bCD (maintained at a depth of 13.0m bCD). The berth pocket is proposed to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:be dredged to 15.6m bCD initially in order to allow for the installation of a 2m thick rock blanket (discussed

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:area that is currently partly land and estuarine. There would, therefore, be a requirement for dredging of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:berth pocket. The proposed scheme (and consequently the dredging requirements) has been designed to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:A summary of the proposed design levels and dredge volumes for marine sediments is detailed in Section

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:3.6.1 Volume of marine sediments to be dredged

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:The total dredge volume for marine sediments is predicted to be approximately 1,800,000m3. As detailed

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:in Table 3.2, the dredge is proposed to be undertaken in two phases to match the anticipated phased

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:construction of the quay however the assessment undertaken within this EIA assumes that the dredging is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:dredged material is anticipated to comprise geological material (i.e. mudstone) (approximately 340,000m3),

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:would be dredged to 11m bCD with the exception of the berth pocket which will be dredged to 15.6m bCD.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: AREA DREDGED

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: DREDGE TO -11.0mCD

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: DREDGE TO -15.6mCD

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: DREDGED TO -11mCD MUDFLATS

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: AREA DREDGED

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: AREA DREDGED

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: DREDGED TO -11mCD

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: PHASE 1 UPSTREAM AREA DREDGED

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: AREA DREDGED

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: DREDGING PLAN

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:Table 3.2 Proposed volumes of marine sediments to be dredged (excluding over-dredge volumes)

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10: Material classification Phase 1 dredge volume (m3) Phase 2 dredge volume (m3) Total dredge volume (m3)

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:It is anticipated that dredging will be undertaken using a combination of a Trailing Suction Hopper Dredger

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:(TSHD) and a backhoe dredger. It is envisaged that up to three barges will be required to support with the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:transport of sediment dredged using the backhoe dredger to the offshore disposal site. It is assumed that

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:a TSHD would be used to dredge soft material and it has been assumed for the purposes of assessment

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:It is expected that the backhoe dredger would be used for both the near surface soft material and the hard

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:material (mudstone). For the purposes of the assessment, it has been assumed that the dredge process

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10: • Removal of soft material above -5m bCD using a backhoe dredger (approximately four weeks).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10: • Removal of soft material below -5m bCD using a backhoe dredger and a TSHD (approximately four

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10: • Removal of soft material in the turning circle using a backhoe dredger and a TSHD (approximately

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10: • Removal of hard material using a backhoe dredger (approximately 10 weeks).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:destabilising the quay wall. The implication is that the berth pocket would need to dredged to a greater

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:3.8 Disposal of dredged material

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:There are two active disposal sites that potentially could accept dredged material from the Tees estuary:

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:capital dredged material but has received quantities of maintenance material in some years. Tees Bay A

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:For the purposes of assessment and the marine licence application, it has been assumed that all dredged

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:The Phase 1 quay wall would extend 90m either side of the berth pocket to retain the dredged slopes back

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:assessed the worst-case scenario of building the quay and dredging the channel in one phase. However,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:and capital dredging (see Drawing PC1084-RHD-SB-DN-DR-C-1388). The rock blanket would be installed

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:following completion of the dredge.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:12: DREDGE TO Newcastle upon Tyne, NE1 4EE

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:12: DREDGE LEVEL.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:12: CLAY DREDGE LEVEL CLAY

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:13: This assumes all dredging plant

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:13: Capital dredging 2 months 3 months 5 months are working at full capacity

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:13:Whilst capital dredging is taking place, there is potential for PDT to be undertaking maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:13: • Dredging plant

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:13: o Backhoe dredger

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:13: o Barges to transport material from the backhoe dredger to the offshore disposal site.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:14:result of capital and maintenance dredging, as well as INNS being introduced or spread from ship ballast

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:16:known to cross underneath the Tees estuary. As dredging is not proposed to be undertaken above the pipe

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:18:Alternative dredging plant

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:18:There is likely to be a requirement to utilise a number of different types of dredger depending on the nature

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:18:of the material being dredged. Therefore, for different parts of the dredging it will be necessary to use a

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:18:TSHD or backhoe. The environmental implications of using these dredgers have been assessed and no

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:Approach channel and berthing pocket dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:The proposed dredged depth in the navigation channel has been chosen to maximise the tidal window to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:3.15.3 Alternative uses of dredged material

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:uses for the dredged arisings, with disposal at sea being the least preferred option (in accordance with the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:reclamation projects. The alternative options that have been considered for the disposal of dredged material

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:The proposed dredge is predicted to give rise to boulder clay, sand and silts. Sand and boulder clay could

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:STDC is not aware of any construction projects within the local area that require the use of dredged material,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:continue to remain open to the re-use of dredged material within construction projects.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:(possibly doubling as little tern nesting islands) could be created using the dredged material from Hartlepool

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:suitable locations for the re-use of dredged sediment; three were located adjacent to the South Gare

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:20:scheme by beneficially re-using dredged material would be welcomed. It is considered that such beneficial

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:20:re-use of dredged material could also represent a possible option for the South Bank scheme.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:20:STDC will continue to investigate the option of creating bird islands using dredged material, possibly linking

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:20:Tees (or any beneficial use of dredged material in the marine environment) would require a separate marine

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:20:licence application to deposit dredged material, or potentially a variation to the marine licence for the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:2:the basis of the potential extent of the dredging and disposal plumes.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:3: Proposed quayside works and dredging at its North Sea supply base Approximately

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:3: The NGCT scheme comprises capital dredging up to 4.8 million m3

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:3: disposal of dredged material offshore, construction of a new 1.5km The NGCT scheme is located in very close

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:3: NGCT elements (buildings, rail terminal, road access, lighting, drainage Dredge footprint therefore is screened into the CIA.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:3: • dredging up to 750,000m3 of material from the approach

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:4: • dredging up to 372,000m3 of material from the approach

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:4: In addition to the proposed dredge (and associated disposal of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:4: dredged material), PDT is proposing to construct an underwater

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:4: being undermined following the proposed dredge.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: nature of this activity, maintenance dredging and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: for the area. However, maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: dredging at Hartlepool This activity has been ongoing for many years. 0km capital dredging activity required for South Bank

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: dredging at Hartlepool channel as the effects of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: 1 and Dolphin D, and a dredge of the river bed adjacent to the Consent in place small scale that there would be no significant

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: (with associated disposal of dredged material) to extend the existing dredge footprint cumulative impacts.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: Given that the dredge footprint largely overlaps

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: dredging in Tees Dock, which, given its location,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: The Tees Channel Dredge project involves a proposed deepening of would have no means of affecting the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: maximum maintained depth of 14m below CD. An Environmental estuary system), the area would be dredged by

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: Tees Channel Dredge Scoping Report (Royal HaskoningDHV, 2016) was submitted to the 0km either the South Bank project or the Tees Channel

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: MMO alongside a request for a scoping opinion for the project in Dredge project (not both). This removes the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: report has not yet been undertaken. Tees Channel Dredge project, therefore, has not

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:6: • Dredging of the existing berth and disposal of dredged

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: The MMO sees the proposed dredge as a

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: maintenance dredge activity. Given the frequency,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: PDT is proposing to undertake a dredge of the approach channel to dredging, maintenance dredging and disposal is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: MMO has confirmed that PDT should submit a variation request to However, the proposed dredge could be

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: Tees channel dredge its existing maintenance dredge licence in order to dispose of the undertaken at the same time as the capital

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: dredged material (i.e. the MMO sees the proposed dredge as a dredging activity required for South Bank (albeit

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: maintenance dredge activity). PDT’s intention is to undertake the within a different part of the estuary).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: dredge during 2020/2021.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: under the ‘maintenance dredge’ umbrella

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:American Harbour Facilities schemes and the ongoing maintenance dredging in the Tees estuary:

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11: • dispersion of suspended sediment during capital dredging and deposition at the offshore disposal

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:Maintenance dredging at Hartlepool and within the Tees estuary has been on-going for many years. Given

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:the frequency, duration and the ongoing nature of this activity, maintenance dredging and disposal is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:Dispersion of suspended sediment and deposition on the seabed during capital dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:All projects scoped into the CIA involve will involve capital dredging. This activity will create a plume of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:During the capital dredging works for the proposed scheme, other port facilities on the Tees will remain

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:operational. Maintenance dredging is, therefore, expected to continue throughout the capital dredge period.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:The capital dredge is also expected to influence the maintenance dredging requirements during and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:The extent of the sediment plume created by capital dredging is heavily dependent on the dredging plant

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:that is adopted, and this is determined by (amongst other factors) the nature of the bed and the dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:likely dredge plant that would be adopted and, in some cases, assumed that different types of plant would

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:be used for dredging different sediment types as part of the same project. As noted in Section 6.5.2, it is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:affected by a plume at some point during the dredging or disposal activities (in some areas this will be on a

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:of sediment plume dispersion and deposition onto the river and/or seabed during capital dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12: Combined maximum zone of influence from Stages 1 - 4 inclusive of the dredging activities

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:NGCT TSHD dredging sand in the approach channel in low river flow, spring tide

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:sediment in the water column was predicted to be in close proximity to the dredger, with plume dispersion

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:dredging (and reclamation for NGCT) over the slack water period. In practice, much of this deposited

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:material will be re-dredged as part of the capital works for each scheme. At the peripheries of each plume,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:It should be noted that the potential for cumulative effects only arises should the dredging for the proposed

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:13:(right) as a result of the proposed scheme [Note: plots show sediment plume impacts arising from dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:13:activities during Stages 1 - 4 inclusive of the capital dredging programme]

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:The potential impacts of the maintenance dredging programme in the Tees are considered within the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:Maintenance Dredging Baseline Document (Royal Haskoning, 2008). This consideration is specifically in

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:the context of the implications of maintenance dredging for the Teesmouth and Cleveland Coast SPA and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14: • effect of increases in suspended sediments during maintenance dredging on food resources of SPA

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14: • increased noise levels (disturbance) during maintenance dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:The Maintenance Dredging Baseline Document 2008 concluded that maintenance dredging represents a

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:potential supply of fine material to Seal Sands, with the timing of maintenance dredging in relation to the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:however, the Maintenance Dredging Baseline Document concluded that the maintenance dredging activity

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:The WFD assessment presented in the latest annual update to the Maintenance Dredging Baseline

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:Document (Royal HaskoningDHV, 2019) concluded that, at water body level, maintenance dredging at

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:capital dredging have been proposed for the Anglo American Harbour facilities and the NGCT. For the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:former project, mitigation comprises the use of specialist dredging equipment (i.e. an enclosed grab loading

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:into a sealed barge) for dredging of unconsolidated material to minimise resuspension in the water column.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:This requirement is specified because of the elevated concentration of contaminants within the dredged

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:15:will be no impact on tidal propagation or water levels due to the limited area of proposed dredging for this

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:15:channel in the lower estuary that will arise from capital dredging for the NGCT.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:15:that the proposed new quay alignment and capital dredge will not significantly affect the existing baseline

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:15:the dredging is predicted to draw some of the flow to the south side of the estuary, although such effects

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:16:require periodic dredging to maintain the design depths (a 10% increase in annual maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:16:proposed dredge).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:16:offshore; with the potential to increase the maintenance dredging requirements by about 10%. No increase

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:16:used for, maintenance dredging, and no effect on sediment supply to intertidal areas throughout the Tees

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:16:The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:16:material to Seal Sands. However, the latest annual update to the Maintenance Dredging Baseline

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:16:maintenance dredging regime could adversely affect the overall estuary morphology and the ongoing

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17:maintenance dredging in the Tees estuary as follows:

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17: • dispersion of suspended sediment during marine works, dredging and disposal; and,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17:cumulative effects only arises should dredging for each scheme coincide. Under such circumstances, the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17:timing of the projects and their respective programmes of capital dredging will coincide to result in a scenario

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17:across the estuary and navigational safety is unlikely to support dredging on different sides of the estuary

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17:In terms of maintenance dredging, there is the possibility that maintenance dredging could occur at the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17:relatively localised effects to the dredger produced in the hydrodynamic modelling assessment for the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17:similar throughout the estuary where regular maintenance dredging occurs. As a result, and noting the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:18:within the footprint of the proposed scheme, where the intertidal area will be dredged to create the berth

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:18:capital dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:18:Sediment deposition resulting from the dredging for the proposed scheme will largely be within the proposed

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:18:dredged footprint. Deposition that occurs in other parts of the river is predicted to be much lower, typically

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:18:are largely similar; however, the effect of the NGCT dredge is larger, with deposition predicted to extend

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:19:Maintenance dredging is targeted at areas that require dredging to maintain navigable depths and, although

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:19:Based on the above, it is concluded that there will be no cumulative effect on the maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:19:modelled for piling and dredging for the Hartlepool approach channel (Table 27.3).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:19:dredging based on NMFS (2018) criteria for Hartlepool approach channel scheme modelling

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:19: during dredging South Bank Harbour porpoise 153 dB re 1 µPa HF SELcum 0.7km

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:20:dredging at the proposed South Bank scheme, NGCT, Hartlepool approach channel and Anglo American

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:20:temporary auditory injury (TTS) or a fleeing response from cumulative impacts of piling and dredging at the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:20: during dredging – III Block O density of 0.888/km2.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:21: during piling and dredging – density of 0.01/km2. population anticipated to be

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:21:or dredging noise from the proposed scheme, NGCT, Hartlepool approach channel and Anglo American

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:21:disturbance as a result of cumulative underwater noise impacts from piling and dredging activities on

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:22:dredging activities on marine mammals

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:22: dredging at the Negligible /

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:22: • Ongoing maintenance dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:22: • Tees channel dredge.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:of the proposed scheme, should it be undertaken at the same time as the dredging required for the NGCT,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:dredging works that exist within the Tees estuary. As stated in Section 12.5.2, the main receptor that may

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:In order for a potential cumulative impact to manifest, the dredging campaign for the proposed scheme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:would need to coincide with at least one of the other dredging campaigns noted above, and both would need

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:this occurs, the zones of influence from dredging would create an additive effect, as demonstrated in

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:more dredge campaigns ongoing at any one time.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:(i.e. dredging along the axis of the river rather than across it to ensure that, at any one time, sediment

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:Anglo American Harbours facilities scheme, specialist dredging equipment (i.e. an enclosed grab loading

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:into a sealed barge) will be used for dredging of unconsolidated material to minimise resuspension in the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:Stage 2 of the proposed capital dredging coincide with the Hartlepool Channel deepening works, the two

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:dredging plumes together will still affect only around 0.5% of the SPA subtidal habitat (Royal

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:HaskoningDHV, 2015)). However, the additive effect of the sediment plumes from separate dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:Changes in marine water quality due to dredging activity

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:require dredging, including the NGCT, Anglo American Harbour Facilities and the ongoing maintenance

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:dredging works. The main receptors that may be affected by this cumulative effect are migratory species,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:Should two or more of the dredging campaigns for the proposed scheme, the NGCT scheme, the Anglo

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:American Harbour facilities scheme and the ongoing maintenance dredging be undertaken simultaneously,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:and preventing migration, should the dredging be undertaken during the peak migration season.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:scheme in Section 13.5.1 (i.e. dredging along the axis of the river, rather than across it to ensure that, at

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:of the sediment plumes from separate dredging campaigns cannot be completely avoided if the campaigns

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:Underwater noise from the proposed scheme is predicted to arise from both dredging and land-based pile

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:the land-based piling, there may be minor adverse impacts from the dredging noises which could potentially

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:Should the dredging campaign for the proposed scheme coincide with dredging from one or more of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:NGCT scheme, the Anglo American Harbour facilities scheme and the ongoing maintenance dredging, the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:Given the regularity of maintenance dredging within the channel, resident and migratory fish in the estuary

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:reduce the magnitude of impacts from individual dredges. It has to be recognised that underwater noises

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:in isolation, though it is highly unlikely that there would be more than one or two dredge campaigns ongoing

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:American Harbour Facilities scheme. The South Bank dredge footprint will pass adjacent to the site of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:Anglo American Harbour Facilities and the NGCT dredge footprint (overlapping with the proposed dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:27:to this are the dredging footprint for the Tees Dock turning circle (which is also included as part of NGCT

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:28:dredge footprint), and the landward part of the proposed scheme of this application (which overlaps in part

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:28:However, as the dredging for the turning circle will only take place once, either for NGCT or for the scheme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:32:27.5.22 Disposal of dredged material

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:32:The proposed scheme involves the requirement to dispose of up to 1,800,000m3 of dredged material

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:32:offshore, should no beneficial re-use options be forthcoming prior to the dredge taking place. Section 26

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:32:concludes that the disposal of dredged material will have a negligible impact on fisheries, marine ecology

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:5: dredging, excavation and demolition works.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:5: • Sand and shingle • Water quality reductions from demolition and dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:5: with offshore disposal of dredged material have been

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:6: Northumberland a result of underwater noise during dredging and • No pathways for effect

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:7: (100km south porpoise as a result of underwater noise during dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:7: • Mudflats and sandflats not due to underwater noise from dredging and offshore

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:9:dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:9:influence of the proposed scheme will be determined by the sediment plume during dredging activities.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:11: Proposed quayside works and dredging at its North Sea supply base Approximately

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:12: The NGCT scheme comprises capital dredging up to 4.8 million m3 Should the NGCT scheme coincide with the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:12: disposal of dredged material offshore, construction of a new 1.5km interest features of the SPA / Ramsar site could

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:12: NGCT elements (buildings, rail terminal, road access, lighting, drainage Dredge footprint noise, visual disturbance and water quality

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:12: • dredging up to 750,000m3 of material from the approach scheme, in-combination effects to the interest

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:12: • dredging up to 372,000m3 of material from the approach

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: In addition to the proposed dredge (and associated disposal of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: dredged material), PDT is proposing to construct an underwater

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: being undermined following the proposed dredge.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: nature of this activity, maintenance dredging and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: for the area. Although maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: Ongoing maintenance dredging for the scheme, there is potential for

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: dredging at Hartlepool This activity has been ongoing for many years. 0km maintenance dredging elsewhere within the Tees

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: and in the Tees estuary to coincide with the capital dredging, which could

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: The effects of maintenance dredging at Hartlepool

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: maintenance dredge disposal licence) would not

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: refurbishment 1 and Dolphin D, and a dredge of the river bed (with associated

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: dredge footprint combination effects.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: disposal of dredged material) to extend the existing berth pocket

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: The dredge footprint for the proposed scheme

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: overlaps with the proposed Tees channel dredge.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: The Tees Channel Dredge project involves a proposed deepening of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: Tees Channel Dredge Scoping Report (Royal HaskoningDHV, 2016) was submitted to the 0km

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: the Tees Channel dredge would not be undertaken

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:15: • Dredging of the existing berth and disposal of dredged

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:16: dredge as a maintenance dredge activity. Given

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:16: PDT is proposing to undertake a dredge of the approach channel to maintenance dredging within the Tees, this activity

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:16: its existing maintenance dredge licence in order to dispose of the capital dredging activity required for the proposed

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:16: dredged material (i.e. the MMO sees the proposed dredge as a scheme (albeit within a different part of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:16: maintenance dredge activity). PDT’s intention is to undertake the estuary).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:16: dredge during 2020/2021.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:16: under the ‘maintenance dredge’ umbrella

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:20: • Loss of intertidal feeding resource due to dredging and excavation to create the berth pocket.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:20: • Indirect impacts on foraging behaviour as a result of impacts to prey resource from capital dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:20: • Maintenance dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:22:Effects on water quality due to dredging and disposal

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:22:The capital dredging of the river will cause plumes of sediment to form. The plume effects arising from the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:22:river dredging are characterised by a short-lived localised increase in suspended sediment concentrations

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:22:by the order of a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:22:extent and reduction in concentration over the following hours. Since the dredging is a near-continuous

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:22:at varying extents depending on the dredging activities undertaken at any one time. Deposition thicknesses

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:be sustained in light of sea level rise. In the main channel, the deposition will require periodic dredging to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:maintain design depths. An increase in annual maintenance dredging requirement considered in Section

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:6 is predicted to yield a very low overall contribution to the net annual maintenance dredging requirements

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:from the estuary as a whole and the potential increase in maintenance dredging requirement could easily

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:be managed within existing maintenance dredging regimes (i.e. no change to the existing maintenance

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:dredge strategy is required).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:new quay’s set-back alignment and dredging of part of the existing estuary bed is 150,901m3. This

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:SPA, behind the existing wharf, to subtidal habitat, due to the capital dredging and excavation required to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:create the berth pocket. The dredging footprint in the channel and the Tees Dock turning circle does not

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:mudflat / other intertidal types in the estuary (i.e. the dredge will be within subtidal areas only). Dredging in

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:24:as foraging grounds, indicated by WeBS core counts for the two sectors in which capital dredging will be

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:24:subject to regular (almost daily) maintenance dredging by PDT therefore the impact of the capital dredge is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:24:the proposed capital dredge. Furthermore, the subtidal area within the proposed dredge footprint represents

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:While 32.5ha of subtidal will be affected by the proposed capital dredging, the area already experiences

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:regular (almost daily) maintenance dredging by PDT so there are not expected to be any long-term changes

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:With the application of mitigation in the form of ensuring that the capital dredging transects run along the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:dredging activities associated with the highest modelled increase in SSC (i.e. Stage 2 of the dredging, which

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:The sediment dispersion modelling of Stage 2 dredging indicates that, at any given time, significant SSC

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:excesses from the capital dredging are confined to the dredging transects and are predicted to decrease

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:significantly with increased distance from the dredging vessel, both laterally and along the line of the vessel,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:month dredging programme.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:England, 2018a). The area affected by the sediment plume generated from proposed dredging, though

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:Maintenance dredging in the channel, undertaken by PDT on an almost-daily basis, infers that terns using

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:dredged.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:foraging opportunities during the capital dredging are not considered to represent a significant change to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:26:approximately five-month duration of the capital dredging campaign. As such, there are expected to be no

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:26:concludes that the periodic nature of underwater noise, plus the likely habituation to background dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:26:noise due to regular maintenance dredging, means that impacts on fish are considered to be of minor

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:26:opportunities during the capital dredging are not considered to represent a significant change to foraging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:28:construction personnel, plant / machinery, dredgers / other vessels and construction lighting. Sections

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:scheme footprint (not including dredging activities, which are considered separately below), therefore for

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:During dredging of the main channel and the turning circle, dredging vessels will operate in close proximity

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:to the North Tees Mudflat and Vopak Foreshore. Most notably, sections of the channel dredge footprint run

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:adjacent to the North Tees Mudflat, therefore the presence of dredging vessels may result in disturbance to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:dredging vessels which operate on an almost daily basis within the channel, including within 30m of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:habituation over the proposed capital dredging period and any effects would lessen through the course of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:Disturbances at Vopak Foreshore would be limited to the approximately one week of dredging required to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:approximately 4.5 months of dredging required further upstream, but only during times when the dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:transect runs close to the mudflat (for example, when dredging the southern half of the river it is unlikely to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:threshold, and the mudflat itself extends over a kilometre upstream of the proposed dredge footprint. As

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:30:associated with the capital dredging has been assumed to represent a temporary loss of foraging habitat in

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:30:various impacts commonly associated with dredging and industrial work in the Tees. As such, the number

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:31:adjacent to the dredging footprint. The proposed scheme will result in the conversion of approximately 2.5ha

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:31:of intertidal to subtidal habitat, demolition of artificial structures and dredging of an area of approximately

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:31:As stated in Section 29.5.4, the effects of capital dredging on subtidal habitat are considered to be

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:31:characteristic of a disturbed environment regularly affected by ongoing maintenance dredging). Impacts on

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:projects. However, dredging activity may, at worst, lead to some localised redistribution on North Tees

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:the ongoing PDT maintenance dredging, have the potential to cause similar disturbance to the Vopak

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:Foreshore and / or North Tees Mudflat due to dredging activity in the channel. However, the dredge footprint

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:for the proposed scheme overlaps in part with the NGCT dredge footprint at the Tees Dock turning circle.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:The dredge at Tees Dock turning circle would therefore only be undertaken by one of these schemes, which

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:reduces the potential for in-combination disturbance to birds at Vopak foreshore. Maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:within the estuary occurs on an almost daily basis; such dredging was ongoing at the time the SPA and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:Ramsar site was extended and has been occurring for many years. It is therefore concluded that dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:dredging for all schemes screened into the assessment be required at the same time (which is highly

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:approach channel scheme and the ongoing maintenance dredging by PDT.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:An interaction between the sediment plumes would only occur in the unlikely event that the capital dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:low, with any effect confined to the footprint of the proposed dredge. The predicted increase in suspended

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:impact dissipating within 10 minutes following completion of the dredge (Royal HaskoningDHV, 2018).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:Harbour Facilities scheme, the ongoing maintenance dredging and the Dogger Bank Teesside A & Sofia

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:dredging transects oriented along the axis of the river rather than across to ensure that, at any one time,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:For the Anglo American Harbours facilities scheme specialist dredging equipment (i.e. an enclosed grab

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:loading into a sealed barge) will be used for dredging of unconsolidated material to minimise resuspension

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:extensive (and on-going) maintenance dredging within the channel on an almost-daily basis, common terns

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:35:on land are excluded. The ongoing maintenance dredging is also not considered here as this forms part of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:35:increase in maintenance dredging requirement is not expected to be significant and could easily be

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:35:managed within existing maintenance dredging and offshore disposal regimes.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:35:been subject to maintenance dredging and offshore disposal as part of ongoing maintenance dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:36:impacts commonly associated with dredging and industrial work in the Tees, regardless. As such, the

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:1: the ‘marine’ works comprise demolition of the existing timber wharf and jetties, capital dredging (to

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:1: disposal of dredged sediments and construction and operation of a new quay (to be set back into

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:1: dredging concept for the proposed scheme (the concept design for the proposed quay is ongoing,

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:2:and jetties, capital dredging (to deepen the Tees Dock turning circle and approach channel and to create

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:2:a berth pocket), offshore disposal of dredged sediments and construction and operation of a new quay (to

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:3: Dredging

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:6: Benthic ecology It is advised that a habitat survey should occur within the dredge footprint to identify any important benthic habitats or species.

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:6: The Tees has been subject to dredging in the recent past meaning the potential for archaeologically significant deposits or features to be impacted in

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:7: • Dredging of the River Tees;

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:7: The applicant should consider the methodology to be used, the disposal of dredged material, and the timing of works. Decisions should be underpinned

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:7: Dredging and disposal

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:8: The disposal site must be specified, ensuring that it has taken capital dredge material before, and can accept the total proposed amount of dredge

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:8: for disposal to sea (and to inform the impact assessment). Any material to be dredged and disposed of within licenced disposal areas at-sea must not

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:8: The MMO would support the consideration of using the dredged material for beneficial use. This could include recharge of intertidal areas elsewhere in

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:8: Specific information on the dredging and piling activities will be required, including the duration of works and anticipated working hours, the likely noise

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:8: The proposed works overlap with the Northern Gateway Terminal project. The applicant has estimated that the works will require a capital dredge of 2.5

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:8: million cubic metres (m3) of material. The applicant has stated that this will be reduced to 1.6 million m3 of capital dredge material if the works are carried

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:8: out alongside the Northern Gateway project (capital dredge of 4.5 million m3).

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:11:from the proposed dredging and disposal activity by coupling a sediment plume model built in MIKE21-MT

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:11:be run for the entire dredging period under astronomic tidal and daily mean fluvial flow conditions.

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:11:(in particular the effect of resuspension and dispersion of sediment during dredging and disposal activities).

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:12:disturbance would be from dredging and vessel transits which are a regular occurrence in the Tees.

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:12:Maintenance dredging is undertaken on a very regular throughout the Tees estuary and therefore

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:12:significant underwater noise disturbance effects are not anticipated due to the proposed capital dredge.

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:15: 4.19. Offshore disposal of dredged material

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:15:offshore disposal of dredged material.

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:15:The potential impact of the disposal of dredged material will be assessed in the context of Cefas records

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:15:dredged material from other consented projects.

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:17:Appendix 1 Preliminary dredging concept for the current scheme being progressed by STDC

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: 3. ALL DREDGE SLOPES ARE ASSUMED TO BE 1:3. TO BE

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: 7. PROPOSED SCHEME AVOIDS DREDGING OVER THE

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: DREDGE DEPTH WILL NEED TO INCREASE BY THE

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: MAINTAINED DREDGE LEVEL -10.4mCD

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: DESIGN DREDGE LEVEL -11.0mCD

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: PRELIMINARY DREDGING

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: MAINTAINED DREDGE LEVEL -10.4mCD BM CF TJR

R-2020-0685-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: DESIGN DREDGE LEVEL -11.0mCD DATE SCALE REF.

R-2020-0685-ESM-Appendix 3_Scoping consultation.pdf:2: • Dredging of the River Tees,

R-2020-0685-ESM-Appendix 3_Scoping consultation.pdf:3:limited by dredging within the immediate area of the proposed dock facilities. Archaeological review of

R-2020-0685-ESM-Appendix 3_Scoping consultation.pdf:3:whether these are situated within an area of proposed new dredging (either for construction or on-

R-2020-0685-ESM-Appendix 3_Scoping consultation.pdf:6:jetties, capital dredging (to deepen the Tees Dock turning circle and approach

R-2020-0685-ESM-Appendix 3_Scoping consultation.pdf:6:channel and to create a berth pocket), offshore disposal of dredged sediments and

R-2020-0685-ESM-Appendix 3_Scoping consultation.pdf:7: wharf and two jetties, capital dredging (to deepen the Tees Dock turning circle and

R-2020-0685-ESM-Appendix 3_Scoping consultation.pdf:7: approach channel and to create a berth pocket), offshore disposal of dredged

R-2020-0685-ESM-Appendix 3_Scoping consultation.pdf:8: • capital dredging (to deepen the Tees Dock turning circle and approach

R-2020-0685-ESM-Appendix 3_Scoping consultation.pdf:8: • offshore disposal of dredged sediments

R-2020-0685-ESM-Appendix 3_Scoping consultation.pdf:12:existing Infrastructure (the dilapidated timber wharf and jetties), capital dredging within the

R-2020-0685-ESM-Appendix 3_Scoping consultation.pdf:12:estuary and offshore disposal of dredged material, construction of a combi-piled quay wall

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:6: • fuel consumption from marine vessels, dredgers and road traffic; and,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:8:Capital dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:8:Capital dredging will be carried out within part of the Tees Dock turning circle, within parts of the existing

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:8:navigation channel and within areas not currently subject to maintenance dredging to create a berth pocket.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:8:This would include dredging of marine sediments and excavation of soils / landside material within the river

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:8:The total dredged volume for marine sediments is predicted to be approximately 1,800,000m3. Dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:8:will be undertaken using a combination of a TSHD and a backhoe dredger. Different backhoe dredgers will

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:8:the transport of sediment dredged using the backhoe dredger to the offshore disposal site.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:9:Information for the calculation of GHG emissions from dredging are provided in Table 22.5.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:9:Table 22.5 Specifications of dredgers and barges to be used during the construction phase

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:9: Number of dredgers 1 1 1

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:9: Installed power dredger (kW) 8,313 1,600 1,600

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:9: dredger and barge)

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:9: Power load factor estimate – dredger 50% 75% 80%

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:9:In addition to the workboats associated with demolition listed in Table 22.4, and dredgers and barges listed

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:12: Construction dredger 6

R-2020-0685-ESM-RCBC scoping opinion.pdf:2: Dredging of the River Tees

R-2020-0685-ESM-RCBC scoping opinion.pdf:4:Dredging Advice

R-2020-0685-ESM-RCBC scoping opinion.pdf:4:The applicant is reminded that dredging can have a number of negative impacts on the water

R-2020-0685-ESM-RCBC scoping opinion.pdf:4:populations. Dredging should only be undertaken in a manner that protects the environment.

R-2020-0685-ESM-RCBC scoping opinion.pdf:4:The applicant should consider the methodology to be used, the disposal of dredged material,

R-2020-0685-ESM-RCBC scoping opinion.pdf:6:include the construction, alteration or improvement of any works, dredging, or a deposit or

R-2020-0685-ESM-2020 12 17 South Bank Wharf 2 RecNOnDet .pdf:1:CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND ASSOCIATED WORKS

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:1:The potential impacts on fish and other marine species and habitats from the offshore disposal of dredged

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:3: Extensive dredging activity is planned for this area of the River Tees,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:3: species such as European Eel, Atlantic Salmon and Lamprey, it is result of the dredging have been

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:3: likely that dredging activity will need to take into account the considered in Section 7, and the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:3: would entail limiting dredging activity to certain times of the year migratory fish is presented in Section

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:3:of underwater noise levels arising from construction works such as piling and dredging. This section

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:11: • Byelaw XXIII – Method and Area of Fishing (Scallop Dredges) Byelaw 2015 – prohibits any

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:11: scallop dredge activity within the Tees Estuary and any marine area within 3nm of the coast.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:12:vessels under 10m in length. As outlined in Section 13.4.2.1, trawling, scallop dredging and netting gear

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:12:13.5.1 Changes in marine water quality due to dredging activity

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:12:During capital dredging, approximately 1.8Mm3 of sediment (including approximately 1.27Mm3 of soft

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:12:material) will be removed by TSHD and backhoe dredger, which will result in a temporary increase in SSC

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:12:in one phase, the capital dredge campaign is anticipated to continue for approximately four months. Full

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:12:dredging, is provided in Section 6. The peak suspended sediment concentration within the Tees during the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:dredging campaign is predicted to be around 85 mg/l, although this is very limited in extent and would only

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:it is very unlikely that disturbance of sediment during the dredging would result in exceedances of EQSs,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:affected areas (Appleby and Scarratt, 1989). However, given that maintenance dredging is regularly

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:undertaken with the Tees by PDT (almost daily maintenance dredging all year round), it can be reasonably

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:to the disturbances associated with dredging activity.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:it is assumed that the programme for the capital dredging in the proposed scheme may coincide with peak

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:during a period of very hot and dry weather. Modelling of the sediment plume during capital dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:the dredging activity and falls below 50mg/l a short distance from the area being dredged. Concentrations

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:of suspended sediments are predicted to decrease significantly with increased distance from the dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:no more than a few hundred metres from the dredging source.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:to the proposed dredging, significant elevations in SSC are predicted to occur in the immediate vicinity of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:the dredger and along the streamline and, for the most part, are expected to be restricted to a relatively

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:dredging phases set out in Section 6, the maximum area affected by increased SSC includes the entire

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:migratory fish movement in the estuary, particularly in juvenile (smolt) stages. With the dredging lasting for

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:journeys throughout the dredging campaign.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14: therefore be undertaken in long strips along the axis of the estuary rather than dredging across

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14: the width of the river. This is to reduce both the extent and impact of the dredged plume, as any

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14: dredging operation, as with other capital dredge operations in the Tees (e.g. Royal

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:of the river at a time and, should dredging be undertaken during the months when migratory fish are present

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:which migratory fish will be able to move past the dredging activity (and for resident species to relocate to

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:not viable since the size of dredger has to be sufficient to carry a large enough drag head and to have

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:sufficient propulsion power to undertake the required dredging operation.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:13.5.2 Entrainment of fish and fish eggs by dredging gear

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:Use of dredging apparatus, particularly TSHD dredge heads, could potentially lead to the entrainment of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:effects from direct uptake during dredging include physical injury, mortality and displacement. The potential

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:the lower Tees estuary, including the footprint of the proposed dredge, with plaice and dab notably abundant

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:Physical disturbance to the riverbed and noise/visual disturbance within close proximity to the dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:crustaceans), with the presence of the dredge head likely resulting in them temporarily relocating away from

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:the substrate or by other means, are likely to be sensitive to entrainment from dredging activities on that

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:these species develop in the water column and are less sensitive to being entrained by dredge gear

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:operating at the seabed. Regardless, regular maintenance dredging undertaken within the proposed dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:risk of direct uptake of eggs during the capital dredge.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:since it would be limited to those present within the dredge footprint (an area of ~350,000m2). Given that

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:of dredging on benthic habitat and food resources, assessed in Section 13.5.5.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:13.5.3 Underwater noise during dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:the dredging options) include movement of the drag head on the seabed, material suctioned through the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:TSHD dredgers are typically low frequencies, up to and including 1kHz (Robinson et al., 2011). Underwater

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:knots) (Theobald et al., 2011). Although backhoe dredging will also be employed during the capital

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:dredging, underwater noise associated with this method is generally considered to be lower than for TSHD

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:16:line system. As such, underwater sound arising from the dredging is expected to fall within the hearing

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:16:such as those produced by operational dredging vessels, to fish, as presented in Table 13.8. Given a lack

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:17:For the purposes of this assessment, the risk that noise from dredging activities could result in mortality or

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:17: worst-case scenario (this form of dredging forms the worst-case scenario for the proposed scheme);

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:17: Tees Dock turning circle and the dredge footprint for the proposed scheme.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:17: • The bathymetry and substrate in the proposed dredging location is broadly similar to that in the area

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:17:which certain unweighted RMS SPLs were expected to occur from both backhoe and TSHD dredging.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:Table 13.9 Summary of the modelled ranges for unweighted RMS SPLs in 10dB increments for dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18: Unweighted RMS Backhoe dredging TSHD

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:Modelled ranges for backhoe dredging are notably less than they are for TSHD. For the most sensitive

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:when considering use of TSHD, and 5 to 10m from source when undertaking backhoe dredging). This is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:will be breaks in dredging activity during the dredge/disposal cycles, plus it is highly unlikely that fish would

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:dredging, during an underwater noise survey conducted by Subacoustech in 2014 (Royal HaskoningDHV,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:will be sustained for as long as dredging is ongoing (a period of approximately four months). Noise levels

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:from backhoe dredging are considerably lower, and only significantly exceed background levels within a

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:vessels and almost daily maintenance dredging, and they would also be able to temporarily move to nearby,

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:less affected areas within the river while dredging is ongoing. Potential impacts for migratory species are

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:downstream, particularly if dredging is undertaken during key migratory periods (see Section 13.4.1.2).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:Given that significantly elevated noise levels produced during backhoe dredging are not expected to extend

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:The TSHD campaign is predicted to last for approximately four weeks. While dredge/disposal cycles will

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:dredging would likely be very similar to the almost-daily maintenance dredging activities undertaken in the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:recommence once the dredging campaign has ceased. Furthermore, the noise levels at the site will abate

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:for the majority of each dredge/disposal cycle while the TSHD vessel transports material to and from the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:dredging campaign. As such, the significance of a potential barrier effects on migratory species caused by

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:Use of dredging vessels are imperative for the proposed scheme. While use of smaller dredger heads may

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:measure. Applying the measure set out in Section 13.5.1 (dredging along the axis of the river, rather than

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:across the river) will help to ensure that noise levels at the opposite side of the river from the dredger remain

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:as low as possible over a dredge/disposal cycle, but as stated above the elevated noise levels will be

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:fish. Removal of the wharf would result in a permanent loss of such habitat. Additionally, capital dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:on benthic estuarine flora and fauna, the regular maintenance dredging undertaken by PDT within the river

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:channel leads to a conclusion that the area of subtidal to be affected by the proposed dredging is unlikely

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:to represent an important spawning or feeding site . Regardless, capital dredging activities on existing

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:The ongoing maintenance dredging suggests that subtidal habitat in the proposed dredge footprint is likely

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:Given the maintenance dredging that occurs, it can be reasonably assumed that fish feeding within the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:dredging activity. For this reason, the general sensitivity of fish to temporary changes in subtidal habitat in

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:Given the above, alteration of the subtidal habitat as a result of dredging activity is considered to have a

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:As well as the subtidal area affected directly by dredging activity, the increases in SSC anticipated during

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:capital dredging activity will consequently result in an increase in sediment deposition, which has the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:within the dredged area, whilst other areas outside the dredge footprint affected are typically less than 5cm.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:In the small extent of subtidal area outside the dredge footprint that may be affected by a small amount of

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:24:those already subject to regular maintenance dredging and/or experience high volume of vessel traffic and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:25:13.6.3 Change in maintenance dredging regime affecting supporting habitats and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:25:effects on the existing maintenance dredging strategy, and no changes to the present-day maintenance

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:25:dredging strategy are necessary. As such, there would be no additional impact on supporting benthic

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:25:habitats and prey resources beyond those already associated with the existing maintenance dredging

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:1: disposal of dredged material should be taken into account.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:3: The Tees has been subject to dredging in the recent past meaning the potential for

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:5: heritage is likely to be limited by dredging within the immediate area of the proposed

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:5: wreck sites whether these are situated within an area of proposed new dredging 16.4.1 and

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:5: dredging and offshore disposal activities (Figure 6.2).

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:6: Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:7: Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:13: Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:14:known to have been found during dredging within the river channel and there is a submerged forest is

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:14:located near Hartlepool on the north bank. Although extensive dredging and reclamation has taken place

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:15: Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:16: Proposed Dredge and Excavation Envelope

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:17:reclamation and disturbance from previous dredging within the channel. Although there is high potential for

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:18: • Dredged channel/area, Navigation feature (Section of navigable waters), Modern (AD1900 –

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:18:proposed scheme (dredging and construction of the new quay) are in keeping with the historic (and current)

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:20: • capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:21:by the historic reclamation and disturbance from previous dredging within the channel.

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:21:potential for remains to be present, if such remains are encountered during dredging or during excavations

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:21:If present, dredging within the turning circle and approach channel and dredging / excavation to create the

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:21:to effects during construction it is concluded that, other than within the dredged areas, sediment deposition

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:21:it will subsequently be dredged as part of ongoing maintenance dredging regimes, whilst material deposited

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:21:back into the newly dredged areas will be re-dredged during the capital works in order to achieve the desired

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:22: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:22: o in the main channel the deposition will require periodic dredging to maintain the design

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:22: construction as impacts are expected to already have occurred during the capital dredge

R-2020-0685-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:22: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

R-2020-0685-ESM-336540 R_2020_0685_ESM - Demolition of existing quay, capital dredge and development of new quay at South Bank Wharf, Grangetown, Redcar - Phase 2.pdf:1:Planning consultation: Demolition of existing redundant quay structures, capital dredging

R-2020-0685-ESM-336540 R_2020_0685_ESM - Demolition of existing quay, capital dredge and development of new quay at South Bank Wharf, Grangetown, Redcar - Phase 2.pdf:2: shrouds on piling rigs, and dredging follow the route of the river, rather than crossing it, to

R-2020-0685-ESM-336540 R_2020_0685_ESM - Demolition of existing quay, capital dredge and development of new quay at South Bank Wharf, Grangetown, Redcar - Phase 2.pdf:2: • The application indicates that an area of SPA habitat will be lost as a result of dredging in

R-2020-0685-ESM-HIGHWAYS ENGLAND.pdf:3:DREDGING AND DEVELOPMENT OF NEW QUAY AND ASSOCIATED WORKS (PHASE

R-2020-0685-ESM-HIGHWAYS ENGLAND.pdf:7:including Environmental Statements for the demolition of existing redundant quay structures, capital dredging and

R-2020-0685-ESM-HIGHWAYS ENGLAND.pdf:10: • Dredging to create a berth pocket and construction and operation of a new quay;

R-2020-0685-ESM-HIGHWAYS ENGLAND.pdf:11:these associated with off-shore dredging, and therefore would not travel to the site. The remaining 100 are

R-2022-0186-CD-TW-SIZ-XX-JBAU-SB-00-DR-C-0004-A1-C02-South_Bank_General_Arrangement_Inner_Tidal_Channel.pdf:1: EXTENT OF QUAY DREDGE POCKET

R-2022-0186-CD-TW-SIZ-XX-JBAU-SB-00-DR-C-0004-A1-C02-South_Bank_General_Arrangement_Inner_Tidal_Channel.pdf:1: DREDGE POCKET

R-2021-0855-CD-ApplicationFormRedacted.pdf:2:DEMOLITION OF EXISTING REDUNDANT QUAY STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND ASSOCIATED

R-2021-0855-CD-MGE04603 Contaminated Land.pdf:1:redundant quay structures, capital dredging and development of new quay and

R-2021-0855-CD-61586_01 - Covering Leter - 05.10.21.PDF:1:“Demolition of existing redundant quay structures, capital dredging and development of new quay and

R-2021-0855-CD-Decision Notice.pdf:1: EXISTING REDUNDANT QUAY STRUCTURES, CAPITAL DREDGING AND

R-2021-0855-CD-Decision Notice.pdf:2: EXISTING REDUNDANT QUAY STRUCTURES, CAPITAL DREDGING

R-2021-0855-CD-Officer report.pdf:1: QUAY STRUCTURES, CAPITAL DREDGING

R-2021-0855-CD-Officer report.pdf:1:structures, capital dredging and development of new quay and associated works

R-2021-0855-CD-Officer report.pdf:2:redundant quay structures, capital dredging and development of new quay and

R-2022-0205-SC-Bran Sands EIA Screening Request_FINAL reduced signed.pdf:28: debris, although the repeated dredging of the Tees in the navigable channel and the

R-2022-0205-SC-Bran Sands EIA Screening Request_FINAL reduced signed.pdf:42: sediments enter from Tees Bay. It is also immediately adjacent to the regularly dredged

R-2022-0205-SC-Bran Sands EIA Screening Request_FINAL reduced signed.pdf:42: into the dredged Tees channel, revealed sediments to contain relatively high levels of

R-2022-0205-SC-Bran Sands EIA Screening Request_FINAL reduced signed.pdf:43: dredging or construction works for existing and proposed projects in the Tees. For

R-2022-0205-SC-Bran Sands EIA Screening Request_FINAL reduced signed.pdf:43: Cefas Guideline Action Levels for the disposal of dredged material (Cefas, 2000); Canadian Sediment Quality Guidelines

R-2021-1048-FFM-Redcar Steelworks-AUK-XX-XX-RP-GE-0001-02-SSI1_SSI2A_GI_SCR.pdf:12:railway sidings and the placement of hydraulic fill dredged from the River Tees and pumped to the site which

R-2021-1048-FFM-Redcar Steelworks-AUK-XX-XX-RP-GE-0001-02-SSI1_SSI2A_GI_SCR.pdf:12:material dredged from sand banks in the estuary mouth and as such is likely to appear similar in nature to

R-2021-1048-FFM-EN010103-001132-NZT DCO 6.4.43 ES Vol III Appendix 18B Cultural Heritage Gazetter.PDF:36:651 Find Spot RIVER TEES Stoneware flagon found whilst dredging Post-medieval

R-2021-1048-FFM-10035117-AUK-XX-XX-RP-ZZ-0520-03-Land West of Warrenby Redcar Preliminary Risk Assessment.pdf:334: to construction activities employing material dredged from a contaminated offshore borrow site;

R-2021-1048-FFM-10035117-AUK-XX-XX-RP-ZZ-0520-01-Land West of Warrenby Redcar Preliminary Risk Assessment(2).pdf:326: to construction activities employing material dredged from a contaminated offshore borrow site;

R-2021-1048-FFM-10035117-AUK-XX-XX-RP-ZZ-0428-02-LWoW_DQRA.pdf:11:to have included tipping of slag and the placement of hydraulic fill dredged from the River Tees. The Site was

R-2021-1048-FFM-10035117-AUK-XX-XX-RP-ZZ-0428-02-LWoW_DQRA.pdf:15:placement of hydraulic fill dredged from the River Tees.

R-2021-1048-FFM-UXO NS051-CV-REP-000-00001_Rev A01(18435).PDF:25: related to construction activities employing material dredged from a contaminated offshore

R-2021-1048-FFM-10035117-AUK-XX-XX-RP-ZZ-0428-03-LWoW_DQRA.pdf:11:to have included tipping of slag and the placement of hydraulic fill dredged from the River Tees. The Site was

R-2021-1048-FFM-10035117-AUK-XX-XX-RP-ZZ-0428-03-LWoW_DQRA.pdf:15:placement of hydraulic fill dredged from the River Tees.

R-2021-1048-FFM-10035117-AUK-XX-XX-RP-ZZ-0428-01-Net_Zero_DQRA.pdf:10:to have included tipping of slag and the placement of hydraulic fill dredged from the River Tees. The Site was

R-2021-1048-FFM-10035117-AUK-XX-XX-RP-ZZ-0428-01-Net_Zero_DQRA.pdf:14:placement of hydraulic fill dredged from the River Tees.

R-2021-1048-FFM-10035117-AUK-XX-XX-RP-ZZ-0520-01-Land West of Warrenby Redcar Preliminary Risk Assessment.pdf:326: to construction activities employing material dredged from a contaminated offshore borrow site;

R-2020-0357-OOM-South Industrial Zone ES - Vol 3 - Appendix H - July 2020.pdf:133:BOS oxide was pumped from the BOS Plant into these ponds. Settled material dredged from the ponds

R-2020-0357-OOM-South Industrial Zone ES - Vol 3 - Appendix H - July 2020.pdf:133:operation these were routinely dredged and the arisings placed within the SLEMS landfill. Stockpiles of

R-2020-0357-OOM-South Industrial Zone ES - Vol 3 - Appendix H - July 2020.pdf:133:this dredged material are present in the south west and north east of the Site. The north and north

R-2020-0357-OOM-South Industrial Zone ES - Vol 3 - Appendix H - July 2020.pdf:135:BOS oxide) was dredged from the Lackenby and Cleveland channels, dried, and added to the

R-2020-0357-OOM-South Industrial Zone ES - Vol 3 - Appendix H - July 2020.pdf:140:Minor pockets of brown clay and silt, interpreted as representing channel dredgings were identified in

R-2020-0357-OOM-South Industrial Zone ES - Vol 3 - Appendix H - July 2020.pdf:140: Slag Slag Dredged

R-2020-0357-OOM-South Industrial Zone ES - Vol 3 - Appendix H - July 2020.pdf:141: Slag Slag Dredged

R-2020-0357-OOM-South Industrial Zone ES - Vol 3 - Appendix H - July 2020.pdf:381:Due to the sites location there is also a risk that dredging’s which may have been used to reclaim the

R-2020-0357-OOM-South Industrial Zone ES - Vol 3 - Appendix H - July 2020.pdf:406: ‐ contaminated dredgings from Sulphates/sulphides 

R-2020-0357-OOM-South Industrial Zone ES - Vol 3 - Appendix H - July 2020.pdf:597:Installation from outside the Works. The lagoons are periodically dredged, the dredgings dried and

R-2020-0357-OOM-South Industrial Zone ES - Vol 3 - Appendix H - July 2020.pdf:605:suspended solids that are dredged from the channels. The sample locations shall be investigated using a

R-2020-0357-OOM-South Industrial Zone ES - Vol 3 - Appendix H - July 2020.pdf:633:Area 3b Solid and S4 Drying Bays 3T1 Dredged solids Potential composite Lead ICPMSS/ICPMSW 0.5 mg/kg (soil), 0.0

R-2020-0357-OOM-Consultee Response - MMO.pdf:1:Such activities include the construction, alteration or improvement of any works, dredging, or a

R-2020-0357-OOM-South Industrial ES - Vol 2 - Chapter H - July 2020.pdf:15: pumped from the BOS Plant into these ponds. Settled material dredged from the ponds was

R-2020-0357-OOM-South Industrial ES - Vol 2 - Chapter H - July 2020.pdf:15: channels. During SSI operation these were routinely dredged, and the arisings placed within the

R-2020-0357-OOM-South Industrial ES - Vol 2 - Chapter H - July 2020.pdf:15: SLEMS landfill. Stockpiles of this dredged material are present in the south west and north east

R-2020-0357-OOM-South Industrial ES - Vol 2 - Chapter H - July 2020.pdf:21: as representing channel dredgings, also identified.

R-2020-0357-OOM-South Industrial Zone ES - Vol 3 - Appendix F - July 2020.pdf:20:separate application will also be bought forward for a new quay and dredging within the

R-2020-0357-OOM-South Industrial Zone ES - Vol 3 - Appendix F - July 2020.pdf:21: • All marine elements associated with the new quay and dredging will be covered in a

R-2020-0357-OOM-South Industrial ES - Vol 2 - Chapter J - July 2020.pdf:8: d Identifying those wharves which can be used for the landing of marine-dredged sand

R-2020-0357-OOM-Planning Statement - July 2020.pdf:12: consents) for the formation of a new quay, river dredging and for the formation the berth pocket

R-2019-0767-OOM-Chapter 6 HRA Screening Report(1).pdf:29: capable of loading bulk dry material at a rate of 12m tons per annum. Associated dredging

R-2019-0767-OOM-Chapter 6 HRA Screening Report(1).pdf:29: • Sediment release from piling and dredging;

R-2019-0767-OOM-Chapter 6 HRA Screening Report.pdf:29: capable of loading bulk dry material at a rate of 12m tons per annum. Associated dredging

R-2019-0767-OOM-Chapter 6 HRA Screening Report.pdf:29: • Sediment release from piling and dredging;

R-2019-0767-OOM-BPM-JBAU-XX-00-RP-EN-0001-S3-P01.01-HRA Report_Issued_2020303.pdf:30: capable of loading bulk dry material at a rate of 12m tons per annum. Associated dredging

R-2019-0767-OOM-BPM-JBAU-XX-00-RP-EN-0001-S3-P01.01-HRA Report_Issued_2020303.pdf:30: • Sediment release from piling and dredging;

R-2021-0831-CD-63262_01 - Biodiversity Strategy IB - Sept 2021.PDF:11: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0831-CD-63262_01 - Biodiversity Strategy IB - Sept 2021.PDF:11: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0831-CD-63262 - Covering Letter - 29.09.21.pdf:2:“Demolition of existing redundant quay structures, capital dredging and development of new quay and

R-2021-0831-CD-370819 393380 393440 R_2021_0830_CD R_2021_0831_CD R_2021_0832_CD - Discharge of conditoins relating to Environment and Biodiversity Strategy Teesworks Redcar_.pdf:1:existing redundant quay structures, capital dredging and new quay and associated works

R-2021-0831-CD-63262 - Teesworks Environment and Biodiversity Strategy May 2022.PDF:12: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0831-CD-63262 - Teesworks Environment and Biodiversity Strategy May 2022.PDF:12: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0831-CD-Teesworks Environment and Biodiversity Strategy - Sept 2021.pdf:11: ESM Bank Wharf, quay structures, capital dredging and

R-2021-0831-CD-Teesworks Environment and Biodiversity Strategy - Sept 2021.pdf:11: ESM Bank Wharf, quay structures, capital dredging and

R-2023-0224-CD-ECL. 007.04.01CEMP-ANNEX.1 Issue 2.pdf:9: 17 05 Soil (including excavated soil from contaminated sites), stones and dredging

R-2023-0224-CD-P20-1004 Grangetown Prairie shadow HRA.pdf:26:5.13 This development includes the installation of wharf/jetty facilities, associated dredging operations,

R-2023-0224-CD-P20-1004 Grangetown Prairie shadow HRA.pdf:72:7.10 It is also understood that parts of the estuary are subject to dredging in order to maintain a navigable

R-2023-0224-CD-ECL.007.04.01_ADM - Issue 1a (3 of 3).pdf:80:5.13 This development includes the installation of wharf/jetty facilities, associated dredging operations,

R-2023-0224-CD-ECL.007.04.01_ADM - Issue 1a (3 of 3).pdf:168:7.10 It is also understood that parts of the estuary are subject to dredging in order to maintain a navigable

R-2023-0224-CD-ECL.007.04.01_ADM - Issue 1a (2 of 3).pdf:20: It is also understood that parts of the estuary are subject to dredging in order to maintain a

R-2023-0224-CD-ECL.007.04.01_ADM - Issue 1a (2 of 3).pdf:63: It is also understood that parts of the estuary are subject to dredging in order to maintain a

R-2023-0247-OOM-TV_BAF_EIA_Screening_Report_Part_1of2.pdf:9: Every two to three years, it may be necessary to empty and dredge out sludge

R-2023-0247-OOM-TV_BAF_EIA_Screening_Report_Part_1of2.pdf:128: capital dredging and development of new quay Cleveland dust emissions. Due to distance between TV ERF

R-2023-0247-OOM-TV_BAF_Planning_and_Design_Statement.pdf:15: necessary to empty and dredge out sludge from the lagoon for dewatering and

R-2023-0247-OOM-TV_BAF_Shadow_HRA.pdf:11: necessary to empty and dredge out sludge from the lagoon for off-site

R-2023-0247-OOM-TV_BAF_Shadow_HRA.pdf:39:land-claim, construction of breakwaters and training walls, and deep dredging. The remaining

R-2020-0820-ESM-Lackenby ES - Vol 3 - Chapter A Introduction and Background - Dec 2020.pdf:27: RCBC but it is confirm target dredging (to deepen the northern half of the Tees Dock turning circle, a section

R-2020-0820-ESM-Lackenby ES - Vol 3 - Chapter A Introduction and Background - Dec 2020.pdf:27: submission will be once application disposal of dredged sediments and construction and operation of a new quay

R-2020-0820-ESM-Lackenby ES - Vol 2 - Chapter K - Waste and Materials - Dec 2020(1).PDF:9: d Identifying those wharves which can be used for the landing of marine-dredged sand

R-2020-0820-ESM-Lackenby ES - Vol 2 - Chapter A Introduction and Background - Dec 2020.PDF:20: STDC to be electrical substation), capital dredging (to determination date at the South Bank s

R-2020-0820-ESM-Lackenby ES - Vol 2 - Chapter A Introduction and Background - Dec 2020.PDF:20: it is pocket), offshore disposal of dredged

R-2020-0820-ESM-Lackenby ES - Vol 2 - Chapter B - Site Description and Scheme Proposals - Dec 2020.PDF:18: Infrastructure along the river bank at South Bank, capital dredging to create a berth pocket

R-2020-0820-ESM-Lackenby ES - Vol 2 - Chapter B - Site Description and Scheme Proposals - Dec 2020.PDF:18: overlap between the phase 1 and 2 areas where an element of dredging will need to take

R-2020-0820-ESM-Lackenby ES - Vol 2 - Chapter B - Site Description and Scheme Proposals - Dec 2020.PDF:18: dredging of the approach channel and berth pocket and the disposal of the dredged material

R-2020-0820-ESM-Lackenby ES - Vol 3 - Chapter D - Noise & Vibration - Dec 2020.pdf:14:also be bought forward for a new quay and dredging within the River Tees in addition to land-based

R-2020-0820-ESM-Lackenby ES - Vol 3 - Chapter D - Noise & Vibration - Dec 2020.pdf:15: • All marine elements associated with the new quay and dredging will be covered in a separate

R-2020-0820-ESM-Lackenby ES - Vol 2 - Chapter L - Cumulative Effects - Dec 2020.PDF:20: application, on is yet (including an electrical substation), capital dredging (to confirm target proposed development is located

R-2020-0820-ESM-Lackenby ES - Vol 2 - Chapter L - Cumulative Effects - Dec 2020.PDF:20: d to berth pocket), offshore disposal of dredged sediments has been

R-2022-0145-CD-61586 Covering Letter.pdf:1:“Demolition of existing redundant quay structures, capital dredging and development of new quay and

R-2022-0145-CD-Riverside Ph1 WB WSIv3.pdf:4: being prepared, there may be no requirement to monitor dredging or remediation works.

R-2022-0145-CD-Riverside Ph1 WB WSIv3.pdf:4: the deposit model proves the need for such work. Dredging activities are covered by the

R-2022-0145-CD-ApplicationFormRedacted.pdf:4: CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND

R-2022-0145-CD-Decision Notice(1).pdf:1: STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT OF NEW

R-2022-0145-CD-Decision Notice(1).pdf:2: QUAY STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT OF

R-2022-0145-CD-Officer report.pdf:1: QUAY STRUCTURES, CAPITAL DREDGING

R-2022-0145-CD-Officer report.pdf:1:structures, capital dredging and development of new quay and associated works

R-2022-0355-FFM-20857612_1.pdf:7:“Demolition of existing redundant quay structures, capital dredging and development of new quay

R-2021-0439-CD-South Bank Quay Strategy Rev. 1.pdf:15:Permission for the construction of the Quay Wall and associated dredging operations was granted by

R-2021-0439-CD-South Bank Quay Strategy Rev. 1.pdf:22:new quay wall and associated dredging activities has been submitted on behalf of STDC which is

R-2023-0253-RMM-ECL. 007.04.01CEMP-ANNEX.1 Issue 2.pdf:9: 17 05 Soil (including excavated soil from contaminated sites), stones and dredging

R-2023-0253-RMM-ECL.007.04.01_ADM - Issue 1a (1 of 3).pdf:112: It is also understood that parts of the estuary are subject to dredging in order to maintain a

R-2023-0253-RMM-ECL.007.04.01_ADM - Issue 1a (1 of 3).pdf:155: It is also understood that parts of the estuary are subject to dredging in order to maintain a

R-2023-0253-RMM-ECL.007.04.01_ADM - Issue 1a (1 of 3).pdf:265:5.13 This development includes the installation of wharf/jetty facilities, associated dredging operations,

R-2023-0253-RMM-ECL.007.04.01_ADM - Issue 1a (1 of 3).pdf:353:7.10 It is also understood that parts of the estuary are subject to dredging in order to maintain a navigable

R-2023-0253-RMM-P20-1004 Grangetown Prairie shadow HRA.pdf:26:5.13 This development includes the installation of wharf/jetty facilities, associated dredging operations,

R-2023-0253-RMM-P20-1004 Grangetown Prairie shadow HRA.pdf:72:7.10 It is also understood that parts of the estuary are subject to dredging in order to maintain a navigable

R-2021-0943-CD-EA_R20210943CD_OFFICIAL_060422.pdf:1:STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY

R-2021-0943-CD-OFFICER REPORT.pdf:1: QUAY STRUCTURES, CAPITAL DREDGING

R-2021-0943-CD-OFFICER REPORT.pdf:1:structures, capital dredging and development of new quay and associated works

R-2021-0943-CD-DECISION NOTICE.pdf:1: CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND

R-2021-0943-CD-DECISION NOTICE.pdf:1: PC1084-RHD-SB-EN-DR-EVC-1113_P01 Dredging Plan received by the LPA on

R-2021-0943-CD-21 0943 Highways England.pdf:1: R/2020/0684/ESM for redundant quay structures, capital dredging,

R-2021-0943-CD-PN 943.pdf:1: DREDGING AND DEVELOPMENT OF NEW QUAY AND

R-2021-0943-CD-Natural England.pdf:1:CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND ASSOCIATED WORKS

R-2021-0943-CD-2022 03 03 Demolition Quay NoObj.pdf:1: R/2020/0684/ESM for redundant quay structures, capital dredging,

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:3:5.14 Control Measures for Dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:5:11.4 minimising the risk of impact to submerged heritage assets during dredging / excavation

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:7: • Capital dredging of approximately 1,800,000m3 of marine sediments with offshore disposal

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:21: Dredging Licence PD Ports Yes Client See Appendix 1.8 The licence holder and

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:28:structures and capital dredging, increased suspended sediment concentrations and increased sediment

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:28:injury to marine mammals from dredging has been assessed as negligible. The assessment has

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:28:Although there will be a small temporary increase in construction-related vessel traffic during dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:29:the capital dredging works, notably if creating barrier effects that may deter migratory patterns.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:29:Based on the expected underwater noise levels associated with capital dredging activities, sound

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:29:expected that fish will already be habituated to regular dredging noises within the estuary and a minor

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:34:• The trailing suction hopper dredger (TSHD) and backhoe would be limited to working within one

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:34:• Dredging operations will be undertaken in long strips along the axis of the estuary rather than

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:34: dredging across the width of the river.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36:Dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36:from dredging the following mitigation measures will be implemented:

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36:• The dredging activities will not commence until a water quality monitoring scheme has been

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36: o A programme to monitor dissolved oxygen levels and turbidity during dredging.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36: o A programme to monitor post completion of the dredge.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36:• Should a reduction of 1mg/l of dissolved oxygen be observed during dredging, the operations

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36:• Use of an enclosed grab to dredge material in the vicinity of BH34 (A borehole situated offshore,

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36:• The trailing suction hopper dredger (TSHD) and backhoe would be limited to working within one

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36:• Dredging operations will be undertaken in long strips along the axis of the estuary rather than

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36: dredging across the width of the river.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36:No dredging not covered under statutory harbour authority powers can be conducted during the

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36:be granted if agreement has been reached that no other dredging will take place on the River Tees

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36:If permission is granted by the MMO to undertake dredging operation during 1st July to 31st August

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36:(inclusive), dissolved oxygen levels will be monitored prior to the dredging activity, as a minimum,

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36:monitored every hour during the dredging activity. If a drop of 1m/g of dissolved oxygen is observed,

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:36:than the dredging activity will temporarily pause for a period of 6 hours (a tidal cycle) or until the

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:38: under water noise from dredging the following mitigation measures will be implemented:

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:38: • The dredging activities will not commence until a water quality monitoring scheme has

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:38: o A programme to monitor dissolved oxygen levels and turbidity during dredging.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:38: o A programme to monitor post completion of the dredge.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:38: • Should a reduction of 1mg/l of dissolved oxygen be observed during dredging, the

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:38: • Use of an enclosed grab to dredge material in the vicinity of BH34 (exclusion zone as

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:38: • The trailing suction hopper dredger (TSHD) and backhoe would be limited to working

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:38: • Dredging operations will be undertaken in long strips along the axis of the estuary

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:38: rather than dredging across the width of the river.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:41: o Minimising the footprint of the proposed dredge as far as practicable within the

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:49:5.14 Control Measures for Dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:51: The capital dredging of the river and the offshore disposal of dredged sediments both will cause

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:51: plumes of sediment to form. The plume effects arising from the river dredging are characterised by

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:51: mg/l at the point of dredging activity, followed by a general dispersion in spatial extent and reduction

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:51: in concentration over following hours. Since the dredging is a near-continuous operation, the plume

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:51: extents depending on the dredging activities undertaken at any one time.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:51: principally as a result of the proposed dredge. However, on further consideration of the potential

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:51: environmental quality standard (EQS) during capital dredging. However, sediment plume modelling

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:51: rather, they are predicted to remain in close proximity to the dredging vessel(s). Additionally, time

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:52: total volume of dredged material comprises geological material (i.e. mudstone) which contains much

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:52: lower levels of contaminants, therefore the risk to EQS is only during dredging of the finer sediments

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:61:5.14 Control Measures for Dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:61:resuspension of contaminants during dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:61:• The dredging activities may not commence until such a time as a scheme of monitoring has been

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:61: Harbour Master but within 300m of upstream and downstream dredge extents. TBC on receipt of

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:61:• Should a reduction of 1mg/l of dissolved oxygen be observed during dredging, the operations

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:61:• Use of an enclosed grab to dredge material in the vicinity of BH34 (exclusion zone as defined by

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:61:• The trailing suction hopper dredger (TSHD) and backhoe would be limited to working within one

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:62:• Dredging operations will be undertaken in long strips along the axis of the estuary rather than

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:62: dredging across the width of the river.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:72: • Dredging; and

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:85: • Capital dredging of approximately 1,800,000m3 of marine

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:90: Excavation Dredge Material Dredging spoil other than those mentioned in 17 05 05 17 05 06 Choose an item. 1,000,000

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:90: Excavation Dredge Material Dredging spoil other than those mentioned in 17 05 06 17 05 05* Choose an item. TBC

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:99: Dredging N/A Contaminated sediment

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:110: • Use of vessels to transport construction materials to site and undertake capital dredging.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:112: 11.4 Minimising the Risk of Impact to Any Submerged Heritage Assets During Dredging /

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:113:11.4 Minimising the Risk of Impact to Any Submerged Heritage Assets During Dredging /

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:113: • capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:154:3.3.1 Use of vessels to transport construction materials to site and undertake capital dredging 16

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:156:storage/distribution activities. In summary, the scheme comprises demolition, capital dredging, offshore

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:156:disposal of dredged material and construction and operation of a new quay (to be set back into the

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:162: • Capital dredging of approximately 1,800,000m3 of marine sediments with offshore disposal into the

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:163:channel now declared at 14.1m below CD were originally dredged to a deeper depth.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:166: dredged rivers (Blake, 1971), from Japan in mud deposits with other polychaetes of the family ✓ (CS04, CS09,

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:168:plus dredging vessels) will be required to construct the scheme. The construction phase therefore has

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:169: transport construction materials to site and undertake capital dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:169: undertake capital hopper of dredging vessels from previous dredging campaigns).

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:169: dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:170: The dredging works have potential to result in spread of INNS present

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:170: suspended sediment during dredging, which will minimise the risk of

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:170: Capital dredging of

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:170: Tees Bay C The disposal of dredged material from the other areas of the proposed

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:170: disposal site. dredge footprint (which does not require the use of an enclosed grab)

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:170: the offshore disposal site. However, maintenance dredging of the

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:170: the dredge is low risk.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:171: capital dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:171:assessment of risk associated with transport of marine INNS to the Tees estuary from dredging or

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:171:transport construction materials to site and undertake capital dredging:

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:179: • Use of vessels to transport construction materials to site and undertake capital dredging.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:184:2.1 Minimise reductions in water • The dredging activities may not commence until a Contractor

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:184: dredging MMO. The scheme shall include detail related to:

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:184: levels and turbidity during dredging.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:184: of the dredge.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:184: be observed during dredging, the operations

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:185: • Use of an enclosed grab to dredge material in the

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:185: • The trailing suction hopper dredger (TSHD) and

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:185: • Dredging operations will be undertaken in long

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:185: dredging across the width of the river.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:187: • Minimising the footprint of the proposed dredge

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:192: dredging and excavation / works, if undertaken during the breeding season

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:192: quality from dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:192: from dredging opposite side of the river from the dredger remain

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:192: as low as possible over a dredge/disposal cycle.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:193: navigation • Post dredge surveys and promulgation.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:194: assets during dredging / yet unidentified marine archaeological remains

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:202:18 Offshore disposal of dredged material

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001_CEMP_A (Fit for Construction)_C03.pdf:202:18.1 Minimising risk to navigation • Dredged material is to be evenly spread within the Contractor

R-2021-0943-CD-CON LAND 943.pdf:1: DREDGING AND DEVELOPMENT OF NEW QUAY AND

R-2021-0943-CD-ApplicationFormRedacted.pdf:2:DEMOLITION OF EXISTING REDUNDANT QUAY STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND ASSOCIATED

R-2021-0943-CD-COMPLIANCE DECISION NOTICE.pdf:1: STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT OF NEW

R-2021-0943-CD-COMPLIANCE DECISION NOTICE.pdf:2: QUAY STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT OF

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:3:5.14 Control Measures for Dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:5:11.4 minimising the risk of impact to submerged heritage assets during dredging / excavation

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:7: • Capital dredging of approximately 1,800,000m3 of marine sediments with offshore disposal

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:21: Dredging Licence PD Ports Yes Client See Appendix 1.8 The licence holder and

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:28:structures and capital dredging, increased suspended sediment concentrations and increased sediment

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:28:injury to marine mammals from dredging has been assessed as negligible. The assessment has

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:28:Although there will be a small temporary increase in construction-related vessel traffic during dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:29:the capital dredging works, notably if creating barrier effects that may deter migratory patterns.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:29:Based on the expected underwater noise levels associated with capital dredging activities, sound

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:29:expected that fish will already be habituated to regular dredging noises within the estuary and a minor

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:34:• The trailing suction hopper dredger (TSHD) and backhoe would be limited to working within one

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:34:• Dredging operations will be undertaken in long strips along the axis of the estuary rather than

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:34: dredging across the width of the river.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36:Dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36:from dredging the following mitigation measures will be implemented:

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36:• The dredging activities will not commence until a water quality monitoring scheme has been

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36: o A programme to monitor dissolved oxygen levels and turbidity during dredging.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36: o A programme to monitor post completion of the dredge.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36:• Should a reduction of 1mg/l of dissolved oxygen be observed during dredging, the operations

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36:• Use of an enclosed grab to dredge material in the vicinity of BH34 (exclusion zone as defined by

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36:• The trailing suction hopper dredger (TSHD) and backhoe would be limited to working within one

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36:• Dredging operations will be undertaken in long strips along the axis of the estuary rather than

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36: dredging across the width of the river.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36:No dredging not covered under statutory harbour authority powers can be conducted during the

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36:be granted if agreement has been reached that no other dredging will take place on the River Tees

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36:If permission is granted by the MMO to undertake dredging operation during 1st July to 31st August

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36:(inclusive), dissolved oxygen levels will be monitored prior to the dredging activity, as a minimum,

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36:monitored every hour during the dredging activity. If a drop of 1m/g of dissolved oxygen is observed,

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:36:than the dredging activity will temporarily pause for a period of 6 hours (a tidal cycle) or until the

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:38: under water noise from dredging the following mitigation measures will be implemented:

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:38: • The dredging activities will not commence until a water quality monitoring scheme has

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:38: o A programme to monitor dissolved oxygen levels and turbidity during dredging.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:38: o A programme to monitor post completion of the dredge.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:38: • Should a reduction of 1mg/l of dissolved oxygen be observed during dredging, the

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:38: • Use of an enclosed grab to dredge material in the vicinity of BH34 (exclusion zone as

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:38: • The trailing suction hopper dredger (TSHD) and backhoe would be limited to working

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:38: • Dredging operations will be undertaken in long strips along the axis of the estuary

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:38: rather than dredging across the width of the river.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:38: down the estuary, dredging will be limited to working on one side of the estuary channel

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:41: o Minimising the footprint of the proposed dredge as far as practicable within the

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:49:5.14 Control Measures for Dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:51: The capital dredging of the river and the offshore disposal of dredged sediments both will cause

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:51: plumes of sediment to form. The plume effects arising from the river dredging are characterised by

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:51: mg/l at the point of dredging activity, followed by a general dispersion in spatial extent and reduction

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:51: in concentration over following hours. Since the dredging is a near-continuous operation, the plume

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:51: extents depending on the dredging activities undertaken at any one time.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:51: principally as a result of the proposed dredge. However, on further consideration of the potential

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:51: environmental quality standard (EQS) during capital dredging. However, sediment plume modelling

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:51: rather, they are predicted to remain in close proximity to the dredging vessel(s). Additionally, time

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:52: total volume of dredged material comprises geological material (i.e. mudstone) which contains much

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:52: lower levels of contaminants, therefore the risk to EQS is only during dredging of the finer sediments

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:61:5.14 Control Measures for Dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:61:resuspension of contaminants during dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:61:• The dredging activities may not commence until such a time as a scheme of monitoring has been

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:61: Harbour Master but within 300m of upstream and downstream dredge extents.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:61:• Should a reduction of 1mg/l of dissolved oxygen be observed during dredging, the operations

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:61:• Use of an enclosed grab to dredge material in the vicinity of BH34 (exclusion zone as defined by

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:61:• The trailing suction hopper dredger (TSHD) and backhoe would be limited to working within one

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:61:• Dredging operations will be undertaken in long strips along the axis of the estuary rather than

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:61: dredging across the width of the river.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:72: • Dredging; and

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:85: • Capital dredging of approximately 1,800,000m3 of marine

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:90: Excavation Dredge Material Dredging spoil other than those mentioned in 17 05 05 17 05 06 Choose an item. 1,000,000

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:99: Dredging N/A Contaminated sediment

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:110: • Use of vessels to transport construction materials to site and undertake capital dredging.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:112: 11.4 Minimising the Risk of Impact to Any Submerged Heritage Assets During Dredging /

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:113:11.4 Minimising the Risk of Impact to Any Submerged Heritage Assets During Dredging /

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:113: • capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:156:2.1 Minimise reductions in water • The dredging activities may not commence until a Contractor

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:156: dredging MMO. The scheme shall include detail related to:

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:156: levels and turbidity during dredging.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:156: of the dredge.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:156: be observed during dredging, the operations

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:157: • Use of an enclosed grab to dredge material in the

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:157: • The trailing suction hopper dredger (TSHD) and

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:157: • Dredging operations will be undertaken in long

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:157: dredging across the width of the river.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:159: • Minimising the footprint of the proposed dredge

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:164: dredging and excavation / works, if undertaken during the breeding season

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:164: quality from dredging

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:164: from dredging opposite side of the river from the dredger remain

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:164: as low as possible over a dredge/disposal cycle.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:165: navigation • Post dredge surveys and promulgation.

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:166: assets during dredging / yet unidentified marine archaeological remains

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:174:18 Offshore disposal of dredged material

R-2021-0943-CD-SBQ1-GCL-ENV-SBKXX-PL-WM-000001.pdf:174:18.1 Minimising risk to navigation • Dredged material is to be evenly spread within the Contractor

R-2021-0943-CD-61568_01 - Covering Letter DoC 3 and 9 - 10.11.21.PDF:1:“Demolition of existing redundant quay structures, capital dredging and development of new quay and

R-2020-0318-FFM-MMO response.pdf:1:Such activities include the construction, alteration or improvement of any works, dredging, or a

R-2021-0924-CD-CHK-JBAU-00-00-RP-EN-0001-S3-P02-South_Bank_WFD_Report.pdf:83:two weeks. No indications of dredging but

R-2023-0291-ESM-PD Teeside Heritage Statement 0323.pdf:12: found during dredging.

R-2023-0291-ESM-ES Vol 2 Green Lithium Appendix 14 - Contaminated Lands.pdf:22:land in the northern half of the site was reclaimed from Tees Estuary by pumping dredgings from

R-2023-0291-ESM-ES Vol 2 Green Lithium Appendix 14 - Contaminated Lands.pdf:22:consolidate and dry out. The dredgings were then covered with up to 15 feet (~4.5m) of blast

R-2023-0291-ESM-ES Vol 2 Green Lithium Appendix 14 - Contaminated Lands.pdf:28:reworked estuary dredgings.

20210128 MLA202000507 Tee south bank phase 2 shellfish advice + JPQC.pdf:1:8. In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of

20210128 MLA202000507 Tee south bank phase 2 shellfish advice + JPQC.pdf:1: dredged material, placement of rock in the berth pocket and construction and operation of a

EA MLA_2020_00507 22 February 2021 OFFICIAL.pdf:1:DREDGING, OFFSHORE DISPOSAL OF DREDGED MATERIAL, PLACEMENT OF

EA MLA_2020_00507 22 February 2021 OFFICIAL.pdf:3:proposed dredging programme, the EIA assessment states this is predicted to be

EA MLA_2020_00507 22 February 2021 OFFICIAL.pdf:3:dredge activities were to happen concurrently. Please note the location of model point

EA MLA_2020_00507 22 February 2021 OFFICIAL.pdf:3:to the dredging activity, as a minimum, monitored every hour during the dredging activity.

EA MLA_2020_00507 22 February 2021 OFFICIAL.pdf:3:If a drop of 1m/g of dissolved oxygen is observed, than the dredging activity must

EA MLA_2020_00507 22 February 2021 OFFICIAL.pdf:3:We are aware the applicant would be against timing restrictions to the dredging

EA MLA_2020_00507 22 February 2021 OFFICIAL.pdf:3:schedule. We overall have concerns on the amount to be dredged in conjunction with

EA MLA_2020_00507 22 February 2021 OFFICIAL.pdf:3:other planned dredges in the estuary however the above condition would mitigate for

MLA 2020 00506 South Bank Phase 1 MLA 2020 00507 Phase 2.pdf:2:The EIA highlights that the dredging for the Turning Circle and the Berth Pocket along the

MLA 2020 00506 South Bank Phase 1 MLA 2020 00507 Phase 2.pdf:2:There is no harm during the disposal of the dredged material as the area is an agreed

MLA 2020 00506 South Bank Phase 1 MLA 2020 00507 Phase 2.pdf:3:mitigate the potential impacts from dredging and piling. This is an acceptable means of

MLA 2020 00506 South Bank Phase 1 MLA 2020 00507 Phase 2.pdf:3:mitigating the identified impacts for the dredging.

MLA 2020 00506 South Bank Phase 1 MLA 2020 00507 Phase 2.pdf:3:that any features located during dredging are recorded and reported. We believe this

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:1:Application (Disposal of dredged material, Navigational dredging (capital), Other deposits,

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:1:  Cross-sectional channel dredge information and side slope analysis, particularly in relation to

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:1:  Impacts to waterbird interest features at North Tees Mudflat from dredging works; and

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:3:Capital dredging the assumed side slopes to be created as part of the proposed dredge, no direct

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:3: the proposed dredge. Natural England requires more detailed reassurance that

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:3: the capital dredge immediately adjacent to the North Tees Mudflat will not impact

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:3: increased risk of slumping. This includes the implications of the capital dredge

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:4:Capital dredging dredging in front of the new quay. It is stated within the EIA that the complete loss

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:4:General: barrier We welcome the commitment to limit TSHD and backhoe dredging to working

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:4: Dredging must be limited to working on one side of the estuary channel at a time.

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:5: 12.5.2 We welcome the commitment to limit TSHD and backhoe dredging to working

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:6:dredging. to tern foraging within the estuary channel.

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:6: Dredging must be limited to working on one side of the estuary channel at a time.

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:6:12.5.4 At present, the effects of visual and noise disturbance to waterbirds from dredging

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:6: To assess whether there should be a seasonal and/or tidal restriction to dredging

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:6: to the likely duration of dredging activities (particularly TSHD) occurring within

338486 - 338489, NE formal response to SBW MLA, 29.01.21.pdf:8:  Tees navigational channel deepening (maintenance dredge);

20210121 MLA202000507 Tees South Bank Quay Phase II Benthic ecology JPQC.pdf:1:8. In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of

20210121 MLA202000507 Tees South Bank Quay Phase II Benthic ecology JPQC.pdf:1: dredged material, placement of rock in the berth pocket and construction and operation of a

20210121 MLA202000507 Tees South Bank Quay Phase II Benthic ecology JPQC.pdf:3: of intertidal habitat due to the dredge/excavation works (Section 9.1.5.2). Notwithstanding that

20210121 MLA202000507 Tees South Bank Quay Phase II Benthic ecology JPQC.pdf:3: result of habitat loss caused by dredging would be of moderate adverse significance (Section

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:1: dredged berth pocket) with one heavy lift area. This may be extended by further berth

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:1: • capital dredging of sand (170,000m3) for the Tees dock turning circle;

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:2: • capital dredging of clay and sand for the channel and berth pocket (650,000m3);

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:2: • disposal of dredged material to offshore disposal site Tees Bay C (820,000m3)

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:2: • capital dredging channel and berth pocket (980,000 m3);

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:2: • disposal of dredged material to Tees Bay C (980,000m3).

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:2: relation to its natural form, and its dredged bathymetry is largely featureless. Marine waves do

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:2: reduced dredging requirements in the downstream sections by up to 24%. This is likely to have

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:3:23. Assessment of the total dredge operations is detailed and mostly presented clearly. Impacts

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:4:24. The full logic of the coastal process assessment is not clear but the total dredge amounts to 2

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:4: years’ worth of ‘normal’ dredge volumes for the whole Tees estuary being extracted within 4

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:4: However, almost all redeposition occurs within the dredged area anyway (to be removed again,

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:4:25. Disposal of the dredged material is also assess in detail, despite proposed disposal to a licensed

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:4: to dredging.

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:4: cumulative disposal of the entire dredge load. This should be presented and discussed with

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:4: impact the future dredge requirement in this area?

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:4: reduction? Dredging of the turning circle is also reported as having no hydrodynamic impact,

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:4: case and indicate the magnitude of the change relative to the present. The dredged pocket and

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:5: dredging works for other facilities within the Tees coincide – it is my view that, if they do not

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:5: coincide, then there is still the prospect of very large volumes of dredging occurring in sequence,

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:5: with the stated consequence of an increase in maintenance dredging in future i.e., the

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:5: relevant to coastal process impacts. This section also discusses the potential use of dredge

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:5: beneficial reuse outlets for the substantial quantities of dredged material generated in line with

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:6: in 2000 may be invalidated by the continual development and management dredging conducted

20210119 MLA202000507 Tees South Bank Quay CP advice + JPQC.pdf:7: dredging. Since the baseline coastal processes are shaped almost entirely by the same

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:1:6. The proposed scheme will comprise the following works: demolition, capital dredging, offshore

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:1: disposal of dredged material, construction and operation of a new quay wall and the installation of

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:2: I. Revised modelling of the plume that takes into account other dredging activity which may

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:2: II. Clarification on the proposed exact times (i.e. months) of dredging works so that the

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:2: dredging works outside the peak upstream migration season for salmon (July-August).

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:3: i. Changes in marine water quality (i.e. increased suspended sediment) due to dredging

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:3: ii. Entrainment of fish and fish eggs by dredging gear;

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:3: iii. Underwater noise during dredging;

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:3: ix. Change in maintenance dredging regime affecting supporting habitats and

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:4:Dredging activities in the river Tees

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:4:19. I recognise that PD Teesport (PDT) has undertaken regular maintenance dredging to maintain

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:4: navigation within the Tees estuary since 2005. Most dredging within the Tees occurs in the

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:4: approach channel and low-middle estuary using a trailing suction hopper dredger (TSHD)

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:4: Hartlepool for an average of 924,247m3 dredged from the Tees reaches and berths. A summary of

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:4: the maintenance dredged volumes (m³) by each reach from 2001 to 2019 is provided in Figure 2.

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:4: Figure 2. Summary of volumes (m3) dredged and deposited offshore during the period 2001 to 2019

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: be dredged from the Tees, resulting in sediment plumes. The effects of the plumes have been

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: modelled using a sediment dispersion model run for the entire four-month dredging period covering

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: all proposed dredging and disposal activities (See section 6 and Appendix 5 of document 4). Based

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: dredging will be localised, with the lateral extent of the plume across the river channel predicted to

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: maximum enhanced SSCs) from the four modelled dredging phases set out in Section 6, the

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: plume effects arising from dredging will be observed throughout the whole dredging continuous

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: low SSC from 0 to 8.5 mg/l. Modelling of the sediment plume during capital dredging indicates that

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: an increase in SSC of up to 350 mg/l is predicted in the direct vicinity of the dredging activity, falling

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: below 50 mg/l at a short distance from the area being dredged. Further, five water quality monitoring

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: of the proposed dredging works, showed increases in SSC above the baseline, up to 85 mg/l, as a

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: result of the ongoing dredging activities. Elevated SSC have been acknowledged to affect dissolved

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5:22. Additional dredging activities have also been proposed for nearby projects such as Northern

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: Gateway Container Terminal (NGCT) which, if consented, will include capital dredging using a

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: TSHD in Phase 1, and a Cutter Suction Dredger (CSD) and/or Backhoe Dredger (BD) in Phase 2.

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: Dredging for NGCT would be undertaken 24 hours a day for approx.120 weeks until 2028 equating

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: to the removal by dredging of up to 4.8 million m3 of material. NGCT has been included within the

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: and ongoing maintenance works. The applicant has recognised that ‘should two or more dredging

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: might increase the risk of barrier effects across the estuary preventing migration when dredging

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: measure proposed for South Bank and NGCT of dredging along one axis of the river at any one

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: separate dredging campaigns cannot be completely avoided if the campaigns are undertaken

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5:23. Taking into account the duration and timing (i.e. 24 hours of continuous operations) of dredging

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: arising from dredging at nearby projects such as NGCT, Anglo-American and maintenance

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:5: dredging, which may result in high SSC, turbidity and poor water quality. These impacts have the

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:6:24. I appreciate that the applicant has proposed limiting dredging to working on one side of the river at

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:6: simultaneous dredging operations are likely to cause an acoustic/physical barrier and behavioural

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:6: Action Plan enforced by the Environment Agency, due to the unknown start dates of the dredging

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:6: instance, the timing of the proposed dredging activities should take into account the peak migration

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:6: dredging proposed for NGCT and regular maintenance dredging (i.e. dredge material quantities,

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:6: measure of limiting dredging to one side of the river at a time and better determine the likelihood of

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:6:CHANGES IN MARINE WATER QUALITY DUE TO DREDGING ACTIVITY

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:6: dredging.

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:6: associated to regular maintenance dredging. However, migratory fish arriving on this side

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:7: that the predicted increase in SSC will only affect the vicinity of dredging activity (no more

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:7: than a few hundred meters from the site of dredging). However, as per comment 19, the

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:7: modelled dredging phases set out in Section 6, the maximum area affected by increased

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:7: proposed dredging activities (4-5 months), the worst-case situation would be that this period

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:7: be undertaken in long strips along the axis of the estuary rather than dredging across the

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:7: width of the river. This is to reduce both the extent and impact of the dredged plume, as

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:7: the dredging operation, as with other capital dredge operations in the Tees (e.g. Royal

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:7: fish to be able to move past the dredging activity.

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:7:29. As per my previous comments 18-21, dredging activities occurring simultaneously within the river

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:7:ENTRAINMENT OF FISH AND FISH EGGS BY DREDGING GEAR

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:8: dredging gear on fish species such as injury, mortality and displacement. However, these effects

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:8: the regular maintenance dredging undertaken, and that any level of entrainment would be of low

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:8: magnitude and limited to the dredge footprint. Therefore, no mitigation has been proposed.

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:8:UNDERWATER NOISE DURING DREDGING

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:8:32. The applicant has acknowledged (section 13.5.3) that underwater noise arising from the dredging

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:8: levels from backhoe dredging are considerably lower, and only significantly exceed background

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:8: barrier effect preventing migratory fish movements up/downstream, particularly if dredging is

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:8: to recommence once the dredging works cease.

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:8: maintenance dredging and dredging proposed for other projects (e.g. NGCT), in combination with

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:8: adverse impacts to fish (see Annex 3 for evidence based potential impacts on fish from dredging).

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:8: works, I recommend that the applicant considers the feasibility of undertaking dredging works

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:9:38. As construction works (i.e. dredging) are proposed to take place 24 hours a day, it is my

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:11:48. As per my previous comments (18-22), there is potential for dredging proposed for South Bank

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:11: quay to occur concurrently with routine maintenance dredging, and with dredging by other projects

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:14: 4. Capital dredging to deepen the norther half of the Tees Dock turning circle and create a berth

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:14: to be dredge is predicted to be approx. 1,8Mm3 which would be undertaken in two phases

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:14: It is anticipated that dredging will be undertaken using a combination of a Trailing Suction Hopper

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:14: Dredger (TSHD) and a backhoe dredger (BD) and will comprise an approximate duration of 19

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:14: 6. Offshore disposal of dredge material at Tees Bay C (TY 150).

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:14:Annex 3. Potential impacts on marine and migratory fish from dredging and disposal of

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:15: head of the dredger.

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:15: vii. Potential disturbance caused by underwater noise from the dredging process.

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:15:Settlement of sediment around areas of dredging and disposal can have the following impacts:

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:15: iv. Exposure to contaminants contained within dredged sediment.

20210115 MLA202000507 South Bank Quay-phase 2 - Fisheries advice MG GE + JPQC.pdf:15: vi. Resuspension of sediments resulting from dredging can smother organisms and hinder

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:1:7. The proposed scheme comprises demolition, capital dredging, offshore disposal of dredged material

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2: for marine mammals are primarily associated with the capital and maintenance dredging, movement of

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2:11. Likewise, for fish, the primary potential impact considered is the proposed dredging activity. I am of the

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2: and also considers the potential effects of 24-hour dredging for both a fleeing and stationary marine

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2:14. The Hartlepool assessment concludes that noise levels for Trailer Suction Hopper Dredging (TSHD) are

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2: predicted to be higher than those for backhoe dredging. For a stationary animal and TSHD, the

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2:15. The potential impacts of auditory injury in marine mammals from cumulative exposure to dredging should

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2: not be dismissed. However, considering the location of the proposed dredging works, it is unlikely that a

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:2: receptor would remain in close proximity of the dredging vessel (i.e. that particular stretch of river) for

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: the area during dredging activities”. Seal sands (a haul out site for harbour seal) is located in the near

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3:17. I believe that the risk of mortality from the cumulative exposure to dredging noise is likely to be very low.

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: dredging noise, but I am of the opinion that this risk (of significant impact) is likely to be low. Fish species

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: are unlikely to remain within the vicinity of the dredging operations for extended periods of time.

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: to fluctuating noise levels caused by passing vessels and almost daily maintenance dredging, which I

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: as long as dredging is ongoing (a period of approximately four months)”. Page 317 then states that “the

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: proposed dredging works be clarified?

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: applicant), the dredge/disposal cycles will run continuously during this period, each cycle time is

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: there are windows in which normal migratory patterns can occur during the dredging campaign. Noise

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: levels at the site will abate for the majority of each dredge/disposal cycle while the TSHD vessel

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: disturbance in the Tees as a result of the maintenance dredging activities and vessels. However, the

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:3: proposed dredging operations will add additional acoustic disturbance into the river, and there is a risk

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:4: unlikely that seals (or porpoise) would remain in close proximity to the dredging operations for extended

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:4:25. For fish, it is proposed to limit dredging to working within one side of the river at a time (along the axis of

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:4: the river, rather than dredging across the width of the river). This measure is implemented to reduce the

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:4: help to ensure that noise levels at the opposite side of the river from the dredger remain as low as possible

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:4: over a dredge/disposal cycle (although elevated noise levels will be detectable across the entire width of

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:5: immediately downstream) and the ongoing maintenance dredging. The EIA Report concludes that

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:5: various dredging campaigns, and I believe that the activities are going to have to be carefully managed

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:5: months of the year the proposed dredging operations for South Bank are expected to take place.

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:5: dredging operations at South Bank. Auditory injury from cumulative exposure to dredging should not be

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:6: level of anthropogenic noise, from vessel traffic and maintenance dredging operations.

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:6:44. Nevertheless, it is clear that there will be a lot of activity going on in the Tees, particularly various dredging

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:6: known what months of the year the proposed dredging operations for South Bank are expected to take

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:6:would all be removed to avoid issues arising during the subsequent capital dredge. It is proposed that the

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:Capital dredging:

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:Dredging is anticipated to be required within part of the Tees Dock turning circle, within parts of the existing

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:navigation channel and within areas not currently subject to maintenance dredging to create a berth pocket.

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:It is anticipated that dredging will be undertaken using a combination of a Trailing Suction Hopper Dredger

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:(TSHD) and a backhoe dredger. It is envisaged that up to three barges will be required to support with the

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:transport of sediment dredged using the backhoe dredger to the offshore disposal site.

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:of the proposed berth pocket. The berth pocket would need to dredged to a greater depth initially to allow

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:The Phase 1 quay wall would extend 90 m either side of the berth pocket to retain the dredged slopes back

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:The EIA has assessed the worst-case scenario of building the quay and dredging the channel in one

MLA202000506 & MLA202000507 Tees South Bank Quay Phases 1&2 UWN advice + JPQC.pdf:8:and capital dredging. The rock blanket would be installed following completion of the dredge. Piling would

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:1: and observations below in my capacity as scientific and technical advisor on dredge and

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:1: in my capacity as scientific and technical advisor for dredge and disposal. The response

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:1: electrical substation), capital dredging (to deepen the northern half of the Tees Dock turning

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:1: disposal of dredged sediments and construction and operation of a new quay (to be set back

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:1:7. The applicant proposes to conduct a capital dredge to remove approximately 1,800,000 m³ of

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:1: latter of which will also be dredged to form a deeper berth pocket. There is a variation of

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:1: existing depths across the dredge areas, ranging from 5.7 to 13 m below Chart Datum (bCD),

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:2: and the target dredge depth ranges from 11 m bCD for most areas, to 15.6 m bCD for the

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:2: used to remove soft and hard material (mudstone) respectively. Once dredged, the applicant

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:2: intends to dispose of dredged material at Tees Bay C (TY150) disposal site.

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:2: advice for dredge and disposal. Further, there is only one EIA report for both phases, which

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:2: capital dredged material but has received quantities of maintenance material in some years.

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:3:15. The data presented for the NGCT project partially overlap with the proposed dredge areas,

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:3:18. General dredging best practice is referenced throughout the EIA. The practices specified

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:4: analysis, repeat sampling analysis, modified dredge methods or alternative disposal may be

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:4: assessment. The applicant correctly identifies the various dredging operations planned in the

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:4: cumulative impact to ecological receptors from the disposal of dredged sediment offshore.

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:4: assessment as to the capacity for the site to receive this combined quantity of dredged

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:5: whole evidence base relative to the area to be dredged is provided for review.

20210201 MLA202000506 MLA202000507 Tees South Bank Phases 1 and 2 - EIA Licence Advice Minute - SEAL Advice v2+SJB.pdf:5:36. The evidence presented in consistent with dredge and disposal operations of a similar scale,

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:3:5.2 Alternative dredging plant 5

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:3:5.3 Alternative dredge depths 6

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:4:7.21 Offshore disposal of dredged material 16

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:5:In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of dredged

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:5:1113 shows the proposed dredge (and excavation in front of the proposed quay wall) footprint.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:6: BERTH POCKET DREDGING AREA BERTH POCKET DREDGING AREA

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:6: CHANNEL DREDGING AREA CHANNEL DREDGING AREA

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:6: DREDGING AREA

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: AREA DREDGED

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: DREDGE TO -11.0mCD

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: DREDGE TO -15.6mCD

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: DREDGED TO -11mCD MUDFLATS

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: AREA DREDGED S3

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: AREA DREDGED

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: DREDGED TO -11mCD

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: PHASE 1 UPSTREAM AREA DREDGED

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: AREA DREDGED

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:8: DREDGING PLAN

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:9: • Capital dredging of approximately 1,800,000m3 of marine sediments with offshore disposal into

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:9: the Tees Bay C disposal site. It is proposed that dredging is undertaken using a trailing suction

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:9: hopper dredger (TSHD) and a backhoe dredger.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:9:5.2 Alternative dredging plant

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:9:There is likely to be a requirement to utilise a number of different types of dredger depending on the nature

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:9:of the material being dredged. Therefore, for different parts of the dredging it will be necessary to use a

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:9:TSHD or backhoe. The environmental implications of using these dredgers have been assessed and no

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:10:5.3 Alternative dredge depths

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:10:The proposed dredged depth in the navigation channel has been chosen to maximise the tidal window to

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11: • Offshore disposal of dredged material.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11:The capital dredging of the river and the offshore disposal of dredged sediments both will cause plumes of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11:sediment to form. The plume effects arising from the river dredging are characterised by a short-lived

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11:dredging activity, followed by a general dispersion in spatial extent and reduction in concentration over

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11:following hours. Since the dredging is a near-continuous operation, the plume effects will be observed

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11:throughout much of the approximately four-month period, but at varying extents depending on the dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11:During operation of the new quay, the quay alignment and capital dredging of the river will not significantly

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:11:capital dredging. There are no predicted changes in water level or wave conditions near the site or in the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:deposition rates and hence a requirement for more sediment to be dredged annually from this local reach.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:However, even under this scenario, the maintenance dredging from the reach local to the new quay will

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:make a very low overall contribution to the net annual maintenance dredging requirements from the estuary

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:as a whole. Therefore the potential increase in maintenance dredging requirement is not expected to be

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:significant and could easily be managed within existing maintenance dredging and offshore disposal

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:a result of the proposed dredge. However, on further consideration of the potential impact, the risk of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:Best practice measures would be adopted during the dredging process to minimise the potential for

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:12:resuspension of sediments. Such measures include dredging in long strips to ensure the plume is located

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:13:and capital dredging, increased suspended sediment concentrations and increased sediment deposition.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:13:with maintenance dredging. All operational phase impacts are predicted to be of negligible significance,

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:14:to marine mammals from dredging has been assessed as negligible. The assessment has concluded

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:14:Although there will be a small temporary increase in construction-related vessel traffic during dredging and

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:15:Adverse impacts may be expected as a result of temporary increases in SSC during the capital dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:15:Alteration of subtidal habitat due to the proposed dredge is expected to be temporary and would be similar

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:15:to that already experienced through regular maintenance dredging that is already undertaken within the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:15:Based on the expected underwater noise levels associated with capital dredging activities, sound thresholds

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:15:will already be habituated to regular dredging noises within the estuary and a minor adverse impact is

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:16:fishing activity as a result of the proposed scheme. As the channel is dredged on an almost daily basis, the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:16:potential conflicts in the same way as routine dredging and other construction activities, through co-

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:16:ordination between STDC, the appointed Contractor and the Harbour Master. Management of dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:17:(dredging and construction of the new quay) are in keeping with the historic (and current) character of the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:17:previous dredging. Archaeological material may still survive, albeit fragmentary and dispersed, or potential

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:20:7.21 Offshore disposal of dredged material

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:20:It is proposed that all dredged material would be disposed of offshore at the Tees Bay C offshore disposal

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS-5.pdf:20:Based on the findings of hydrodynamic and sedimentary plume modelling, the disposal of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:3:3.6 Capital dredging of marine sediments and excavation of soils / landside materials within

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:3:3.8 Disposal of dredged material 17

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:7:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL 470

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:7:26.2 Modelling the dispersion and deposition of capital dredged material and effect on water

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:8:28.5 Detailed assessment – C2 Capital dredging 522

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:9:In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:9:dredge and disposal activities).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:9: which covers the potential zone of influence of both the dredge and disposal activities.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:10: P roposedDredg

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:13:(90m wide) and the associated dredging requirements. Consultation with PD Ports’ Harbour Master during

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:15:along the river bank at South Bank (including an electrical substation), capital dredging (to deepen the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:15:berth pocket), offshore disposal of dredged sediments and construction and operation of a new quay (to be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:16:would all be removed to avoid issues arising during the subsequent capital dredge. It is proposed that the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:17: BERTH POCKET DREDGING AREA BERTH POCKET DREDGING AREA

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:17: CHANNEL DREDGING AREA CHANNEL DREDGING AREA

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:17: DREDGING AREA

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:22:3.6 Capital dredging of marine sediments and excavation of soils /

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:22:Drawing PC1084-RHD-SB-EN-DR-EV-1113 below shows the proposed dredge footprint. For the purposes

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:22:of this EIA, a dredge envelope has been assessed (Figure 1.1). As shown on the drawing, dredging is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:22:dredging to create a berth pocket. The Tees Dock turning circle and areas of navigation channel are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:22:dredged to a depth of 15.6m bCD (maintained at a depth of 13.0m bCD). The berth pocket is proposed to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:22:be dredged to 15.6m bCD initially in order to allow for the installation of a 2m thick rock blanket (discussed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:22:area that is currently partly land and estuarine. There would, therefore, be a requirement for dredging of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:22:berth pocket. The proposed scheme (and consequently the dredging requirements) has been designed to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:22:A summary of the proposed design levels and dredge volumes for marine sediments is detailed in Section

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:22:3.6.1 Volume of marine sediments to be dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:22:The total dredge volume for marine sediments is predicted to be approximately 1,800,000m3. As detailed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:22:in Table 3.2, the dredge is proposed to be undertaken in two phases to match the anticipated phased

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:22:construction of the quay however the assessment undertaken within this EIA assumes that the dredging is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:22:dredged material is anticipated to comprise geological material (i.e. mudstone) (approximately 340,000m3),

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:22:would be dredged to 11m bCD with the exception of the berth pocket which will be dredged to 15.6m bCD.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:23: AREA DREDGED

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:23: DREDGE TO -11.0mCD

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:23: DREDGE TO -15.6mCD

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:23: DREDGED TO -11mCD MUDFLATS

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:23: AREA DREDGED

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:23: AREA DREDGED

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:23: DREDGED TO -11mCD

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:23: PHASE 1 UPSTREAM AREA DREDGED

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:23: AREA DREDGED

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:23: DREDGING PLAN

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:24:Table 3.2 Proposed volumes of marine sediments to be dredged (excluding over-dredge volumes)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:24: Material classification Phase 1 dredge volume (m3) Phase 2 dredge volume (m3) Total dredge volume (m3)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:24:It is anticipated that dredging will be undertaken using a combination of a Trailing Suction Hopper Dredger

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:24:(TSHD) and a backhoe dredger. It is envisaged that up to three barges will be required to support with the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:24:transport of sediment dredged using the backhoe dredger to the offshore disposal site. It is assumed that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:24:a TSHD would be used to dredge soft material and it has been assumed for the purposes of assessment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:24:It is expected that the backhoe dredger would be used for both the near surface soft material and the hard

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:24:material (mudstone). For the purposes of the assessment, it has been assumed that the dredge process

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:24: • Removal of soft material above -5m bCD using a backhoe dredger (approximately four weeks).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:24: • Removal of soft material below -5m bCD using a backhoe dredger and a TSHD (approximately four

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:24: • Removal of soft material in the turning circle using a backhoe dredger and a TSHD (approximately

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:24: • Removal of hard material using a backhoe dredger (approximately 10 weeks).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:24:destabilising the quay wall. The implication is that the berth pocket would need to dredged to a greater

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:25:3.8 Disposal of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:25:There are two active disposal sites that potentially could accept dredged material from the Tees estuary:

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:25:capital dredged material but has received quantities of maintenance material in some years. Tees Bay A

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:25:For the purposes of assessment and the marine licence application, it has been assumed that all dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:25:The Phase 1 quay wall would extend 90m either side of the berth pocket to retain the dredged slopes back

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:25:assessed the worst-case scenario of building the quay and dredging the channel in one phase. However,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:25:and capital dredging (see Drawing PC1084-RHD-SB-DN-DR-C-1388). The rock blanket would be installed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:25:following completion of the dredge.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:26: DREDGE TO Newcastle upon Tyne, NE1 4EE

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:26: DREDGE LEVEL.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:26: CLAY DREDGE LEVEL CLAY

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:27: This assumes all dredging plant

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:27: Capital dredging 2 months 3 months 5 months are working at full capacity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:27:Whilst capital dredging is taking place, there is potential for PDT to be undertaking maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:27: • Dredging plant

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:27: o Backhoe dredger

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:27: o Barges to transport material from the backhoe dredger to the offshore disposal site.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:28:result of capital and maintenance dredging, as well as INNS being introduced or spread from ship ballast

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:30:known to cross underneath the Tees estuary. As dredging is not proposed to be undertaken above the pipe

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:32:Alternative dredging plant

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:32:There is likely to be a requirement to utilise a number of different types of dredger depending on the nature

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:32:of the material being dredged. Therefore, for different parts of the dredging it will be necessary to use a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:32:TSHD or backhoe. The environmental implications of using these dredgers have been assessed and no

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:33:Approach channel and berthing pocket dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:33:The proposed dredged depth in the navigation channel has been chosen to maximise the tidal window to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:33:3.15.3 Alternative uses of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:33:uses for the dredged arisings, with disposal at sea being the least preferred option (in accordance with the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:33:reclamation projects. The alternative options that have been considered for the disposal of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:33:The proposed dredge is predicted to give rise to boulder clay, sand and silts. Sand and boulder clay could

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:33:STDC is not aware of any construction projects within the local area that require the use of dredged material,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:33:continue to remain open to the re-use of dredged material within construction projects.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:33:(possibly doubling as little tern nesting islands) could be created using the dredged material from Hartlepool

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:33:suitable locations for the re-use of dredged sediment; three were located adjacent to the South Gare

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:34:scheme by beneficially re-using dredged material would be welcomed. It is considered that such beneficial

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:34:re-use of dredged material could also represent a possible option for the South Bank scheme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:34:STDC will continue to investigate the option of creating bird islands using dredged material, possibly linking

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:34:Tees (or any beneficial use of dredged material in the marine environment) would require a separate marine

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:34:licence application to deposit dredged material, or potentially a variation to the marine licence for the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:35: • Dredging;

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:35: • Capital dredging (removal activity).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:35: • Offshore disposal of dredged material (deposit activity).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:35:The proposed dredge footprint is located predominantly within an area subject to maintenance dredging by

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:35:of the existing maintenance dredge footprint, and therefore a variation to the licence held by PDT is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:35:envisaged to increase the source area of maintenance dredged material following construction of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:38:Options for the disposal of waste (i.e. the material to be dredged from the approach channel, turning circle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:38:investigated in accordance with the waste hierarchy. Possible alternative options for dredged material have

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:39: • Policy NE-DD-3 – proposals for the disposal of dredged material must demonstrate that they have

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:52: Proposals for the disposal of dredged material must demonstrate that they have been

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:52: assessed against the waste hierarchy. Where there is the need to identify new dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:53: The Environment Agency’s response to RCBC during scoping consultation listed three Impacts of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:53: • Impacts of dredging on the tidal prism of the estuary, and therefore the extent addressed in Section

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:53:Agency (letter • In addition to the initial capital dredge, consideration of the impacts associated impacts associated

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:53:dated 14th August with the continued maintenance of the dredged area in future years should be with maintenance

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:53:2020) assessed too, in terms of the continued impact to fish, as well as water quality. dredging is made in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:53: • it is likely that dredging activity will need to take into account the protection of Section 6.6.4.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:53: during critical migration periods. This would entail limiting dredging activity to water quality are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:53:dredging and offshore disposal activities. For this reason, the study area shown in Figure 6.1 has been

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:54:2005 Maintenance dredging baseline document. ABPmer, 2005

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:54: Tees maintenance dredging baseline Royal Haskoning, 2007b Documents the maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:55: 2019a and 2020a) maintenance dredging and disposal for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:55: QEII Berth Development – Environmental information about maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:55: dredging operations required for this

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:57: Maintenance dredging baseline

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:57: Documents the maintenance dredging material regularly

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:57: Tees maintenance dredging baseline removed from the Tees estuary, and the potential

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:57: document. implications of maintenance dredging and disposal for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:57:2009 Royal Haskoning, 2009 dredging regimes and materials arising from above and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:57: possible effects from the proposed dredging operations

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:58:In addition, an analysis of historical data, including dredge and disposal volumes and land reclamation from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:60: predict movement of suspended sediment from the proposed dredging and disposal activities by

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:60: was run for the entire dredging and disposal period under astronomic tidal and daily mean fluvial

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:60:the harbour and marina berths. All of these locations require dredging to maintain a safe navigable depth

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:62:of reaches require maintenance dredging to remove both sands and silts. The volume of sediments dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:62:dredged from the river mouth and navigation approach channels within Tees Bay, with river silts mainly

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:62:dredged from within the berths and river channel further upstream in the Tees estuary.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:62:to allow bypassing of sediment, but observed accumulations upstream, and a 24% reduction in the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:63:(Newlyn) (7.15m below CD). As a result of training works and deepening by dredging, the current depth at

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:63:the mouth is about double this natural level. Dredging and training works have occurred since the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:63:establishment of the first dredged channel of 4.3m from Middlesbrough Docks to the sea after 1853.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:63:only notable project undertaken since that time has been the dredging and re-strengthening of No.1 Quay

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:63:sediments) which is offset by maintenance dredging and disposal at offshore licenced disposal site Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:63:PDT is required by the Tees and Hartlepool Port Authority Act 1966 to publish dredge depths; the published

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:63:Admiralty Charts show the maximum licensed depths for the channel and berths. A summary of the dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:63:14.1m below CD were originally dredged to a deeper depth.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:63:access. The berth pocket within Tees Dock has been dredged to a depth of 14.5m below CD, with the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:63:general dock area dredged to 10.9m below CD.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:84:induced currents, vessel induced forces and re-suspension by dredging operations. These last two were

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:85: • Marine input: Comparison of the above figures with the present knowledge of the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:85:Dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:85:As part of this responsibility, PDT must maintain the advertised dredge depths within the defined areas

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:85:dredging in the thirteen reaches of the river shown in Figure 6.29 (as well as in berths within the Tees and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:85:within Tees Bay). Maintenance dredging practices have remained unchanged since 2005.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:85: Figure 6.29 Maintenance dredging reaches within the River Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:86:Most dredging within the Tees occurs in the approach channel and low-middle estuary in order to maintain

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:86:access to berth pockets and impounded docks. TSHDs are currently used for the majority of the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:86:dredgers have active bottom door offloading systems.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:86:PDT also operates its own 11m plough to supplement ongoing suction dredging operations through the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:86:removal of isolated high spots on the riverbed, primarily in frontages or confined areas. Plough dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:86:dredgings requiring disposal to sea.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:86:A summary of the maintenance dredged volumes (m³) by each reach from 2001 to 2019 is provided in Table

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:86:6.15 and shown in Figure 6.30. Data on dredging was obtained from PDT and extends the time series

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:86:originally presented in Royal Haskoning (2008) from 2001 to 2019. No dredging has been required within

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:86:Reach 0 during the reporting period. Note that these data also include maintenance dredging volumes from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:86: Volume of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:86:Figure 6.30 Summary of volumes (m3) dredged and deposited offshore during the period 2001 to 2019

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:86:The total volume of maintenance dredged material has decreased below the average annual volume for the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:86:Over the 19-year period, the average volume maintenance dredged from the Tees reaches is 740,266m3,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:87:Table 6.15 Summary of the total volumes of dredged material disposal (m3) from 2001 to 2019

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:89:Maintenance dredge material (between 2001 and 2018) comprised around 180,000m3 of mud, mostly found

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:89:A review of the dredged sediment quality data is presented in Section 7.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:89:general, Tees Bay A (TY160) is used for the disposal of maintenance dredge arisings while Tees Bay C

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:89:(TY150) is used for capital dredge arisings. Tees Bay B (TY110) and Tees Bay Foreshore (TY170) are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:89: dredged material. Some 1999, associated with the construction of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:89: 54 42.600N 00 58.600W maintenance dredging has been downstream Ro-Ro berths. Typical annual

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:90:Figure 6.31 Location of offshore maintenance and capital dredge disposal sites

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:90:6.5.2 Capital dredging and offshore disposal of dredged sediments

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:90:Capital dredging is required to: (i) create a berth pocket adjacent to the new quay; (ii) deepen the river

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91:pocket, creating a finished depth of 13.6m below CD. Dredging of the channel and berthing pocket will yield

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91:In total, approximately 1,800,000m3 of material will be dredged from the areas described over an

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91:as ‘soft’ material) and Mercia Mudstone (classed as ‘hard’ material). Dredging will be undertaken using a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91:Each year, between 25 – 30 million tonnes (wet weight) of dredged marine sediments from ports, harbours

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91:dredged from the proposed scheme will be taken to the Tees Bay C licensed offshore disposal site, some

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91:The capital dredging within the river, using TSHD and BHD, and the disposal activities at the licensed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91:modelling of the sediment dispersion associated with the dredging and disposal activities, as well as the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91:and run for the entire four month duration covering all proposed dredging and disposal activities. Wave

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91:disturbance effects have been included. The dredging methods, schedule and sediment release settings

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91:movement of dredgers and transport barges (including dredging, sailing, disposal and downtime) such that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91:sediment releases have been made near continuously throughout the dredging operations (except for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91:allowed periods of downtime) from along the centre line of the dredged areas, running along the axis of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91:The overall dredging and disposal operations may be considered as four stages in the following sequence:

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91: • Stage 1: BHD working to dredge the upper soft material (above -5m CD) in the berthing pocket and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91: • Stage 2: BHD and TSHD working in parallel to dredge the middle soft material (below -5m CD) in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91: • Stage 3: BHD working to dredge the bottom hard material in the berthing pocket and river channel

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91: • Stage 4: BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:91:Results from the sediment dispersion modelling are discussed in turn for the dredging and disposal activities.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:92: throughout the entire four-month period covered by the dredging and disposal simulations, but only

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:92: extents of enhancement in SSC from any stage of the dredging or disposal operations during the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:92: relevant stage of the dredging programme. It is important to note that this type of figure does not

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:92: become affected by a plume at some point during the dredging or disposal activities (in some areas

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:92:Dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:92:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:92:end of the dredging transect to the north-eastern end.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:92:Peak concentrations from dredging are always local to the point of disturbance from dredging at the riverbed,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:92:on timing of release with respect to the phase of the tide and location of dredging within the berthing pocket

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:92:release from the south-western corner of the dredging transect during the ebb phase (Plot A) and flood

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:92:phase (Plot D) of the tide when the release is towards the north-eastern end of the dredging transect.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:92:When the dredger is at the south-western end of the transect, the maximum spatial extent of the plume on

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:92:Middlesbrough Dock. When the dredger is at the north-eastern end of the transect, the extent of the plume

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:93:Figure 6.32 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:93:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:94:Figure 6.33 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:94:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:95:Figure 6.34 (Plot C) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:95:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:96:Figure 6.35 (Plot D) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:96:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:96:In order to determine a maximum ‘zone of influence’ from Stage 1 of the dredging activities, the maximum

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:96:values of enhancement in SSC from any phase of the dredging operations during Stage 1 have been plotted

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:96:release points along the dredging transect at the proposed scheme site. Further upstream and downstream

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:96:of the areas directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a short distance

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:96:from the point of dredging, and at the peripheries below 20mg/l) before merging with low background

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:97:Figure 6.36 Maximum enhanced SSCs arising from dredging activities during Stage 1 of the capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:97:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:97:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:97:time, moving from the south-western end of each of two parallel dredging transects to the north-eastern

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:97:from the two dredger types, as show in Figures 6.37 and 6.38 (Plot A and Plot B show releases from the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:97:south-western and north-eastern ends of the two parallel dredging transects respectively). However, the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:98:Figure 6.37 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 2 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:98:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:99:Figure 6.38 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 2 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:99:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:99:The maximum ‘zone of influence’ from Stage 2 of the dredging activities is shown in Figure 6.39 (please

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:99:note the earlier caution in interpreting this type of figure). This shows that during Stage 2 of the dredging,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:99:becomes wider; and (iii) at times two plumes are created by the in-parallel dredging activities. Despite these

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:99:release points along the dredging transects at the proposed scheme site. Further upstream and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:99:downstream of the areas directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:99:short distance from the point of dredging, and at the peripheries below 20mg/l) before merging with low

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:100:Figure 6.2 Maximum enhanced SSCs arising from dredging activities during Stage 2 of the capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:100:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:100:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:100:end of the dredging transect to the north-eastern end.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:100:of the dredging transect during the ebb phase (Plot A) and flood phase (Plot B) of the tide. Similar results

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:100:is towards the north-eastern end of the dredging transect. It can be seen that the maximum SSC values

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:100:and the spatial extents of the plume arising from Stage 3 of the dredging are much lower than those

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:100:of dredging is notably lower.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:101:Figure 6.40 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:101:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:102:Figure 6.41 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:102:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:103:Figure 6.42 (Plot C) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:103:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:104:Figure 6.43 (Plot D) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:104:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:104:The maximum ‘zone of influence’ from Stage 3 of the dredging activities is shown in Figure 6.44 (please

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:104:note the earlier caution in interpreting this type of figure). This shows that during Stage 3 of the dredging,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:104:during both Stages 1 and 2 of the dredging (note the slight plume shown in the mid channel is a remnant of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:104:the Stage 2 dredging, which has not fully dissipated before Stage 3 commences). During Stage 3, the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:105:Figure 6.44 Maximum enhanced SSCs arising from dredging activities during Stage 3 of the capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:105:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:105:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:105:end of each of two parallel dredging transects to the north-eastern end.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:105:Peak concentrations from dredging are always local to the point of disturbance from dredging at the riverbed,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:105:times in the dredging cycle, SSC values can become enhanced by typically 10 to 20mg/l between the point

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:106:Figure 6.45 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 4 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:106:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:107:Figure 6.46 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 4 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:107:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:107:The maximum ‘zone of influence’ from Stage 4 of the dredging activities is shown in Figure 6.47 (please

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:107:note the earlier caution in interpreting this type of figure). This shows that during Stage 4 of the dredging,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:107:stages, the maximum SSC concentrations remain local to the point of dredging within the turning circle (up

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:107:to a few hundred mg/l). Further upstream and downstream of the areas directly dredged, the SSC

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:107:enhancement drops markedly (typically below 50mg/l a short distance from the point of dredging, and at the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:108:Figure 6.47 Maximum enhanced SSCs arising from dredging activities during Stage 4 of the capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:108:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:108:The sediment plumes that arise from the four stages of the dredging could potentially affect areas of riverbed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:108:of influence’ from Stages 1 - 4 inclusive of the dredging activities has been plotted in Figure 6.48 for the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:108:that during the predicted four months of dredging, all individual or coalesced plume effects are confined to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:108:Furthermore, all plumes associated with dredging of the berthing pocket and river channel in the vicinity of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:108:whilst all plumes associated with dredging of the turning circle are confined to the left bank (north of centre

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:109:Figure 6.3 Maximum enhanced SSCs (near-bed layer) arising from dredging activities during Stages 1 -

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:109:4 inclusive of the capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:110:Figure 6.49 Maximum enhanced SSCs (near-surface layer) arising from dredging activities during Stages

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:110:1 - 4 inclusive of the capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:110:Sediment suspended within the dredging plumes will fall to the riverbed, either soon after disturbance or

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:110:spillage occurring during the dredging operation (for coarser-grained sediment fractions), or at a point in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:110:by this deposition. It can be seen that much of the sediment falls to the bed within the dredged areas (from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:110:where it will be re-dredged to achieve the necessary bed depths), whilst the deposition that occurs in other

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:111:Figure 6.50 Maximum riverbed thickness change due to sediment deposition arising from dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:111:activities during Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:111: would be affected by the zone of influence of the dredging operations].

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:112:appreciable extent, with peak enhancements of between 15 and 85 mg/l during Stage 2 of the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:112:programme (Figure 6.52). Whilst Stage 1 of the dredging also causes some enhancement in SSC at point

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:112:elevations in SSC drop rapidly after each dredging plume has dispersed, and return to baseline levels at

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:112:points of downtime or between successive dredging stages. There are no significant effects noted at the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:112:water quality sampling points during Stage 3 of the dredging and only negligible effects for a short duration

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:112:a very low value (6mm) throughout the entire dredging programme (Figure 6.53) and in reality some of this

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:112:material will become re-suspended by tidal currents or dredged during maintenance campaigns of the river

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:112:At the mudflat monitoring points, it is only during Stage 4 of the dredging that any discernible effects are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:112:At the navigation monitoring points on the north bank, it is only during Stage 4 of the dredging that any

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:112:At the navigation monitoring points on the south bank, it is throughout Stages 1 and 2 of the dredging that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:112:Stages 3 and 4 of the dredging, only negligible effects are noted, equivalent to variations within the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:113:re-suspended by tidal currents or will be removed during maintenance dredging campaigns of the river

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:118:is licensed for the disposal of dredged sediment and is routinely monitored as part of a national programme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:118:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:118:The above cycle is repeated throughout all disposal events associated with Stage 1 of the dredging,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:119:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:120:dredging, the following descriptions focus on where particular aspects of subsequent stages differ from the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:120:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:120:TSHD. The pattern of dispersion following discharge of the BHD-dredged material is as described for Stage

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:120:cessation of TSHD discharge) the subsequent BHD-dredged material disposal is commenced at a common

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:121:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:122:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:123:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:124:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:125:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:126:dredging programme has been plotted in Figure 6.64 for the near-bed layer of the water column (please

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:127:inclusive of the capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:128:event during Stage 1 of the capital dredging programme – local scale

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:129:event during Stage 1 of the capital dredging programme – wider scale

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:131:The river dredging and offshore disposal activities will both cause plumes of sediment to form close to the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:131:During dredging, there will be a release of sediment particles from the deliberate physical disturbance to the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:131:riverbed and, more significantly, from overflow when dredged material is loaded into the dredger’s hopper

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:131:(for TSHD) or the transport barge (for BHD). Such releases will be ongoing through each dredging cycle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:131:until the dredging activity ceases due to downtime (e.g. adverse weather, vessel maintenance) or at

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:131:scheduled breaks between stages of dredging activity. During offshore disposal, a single hopper load will

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:131:Once a plume is generated, the highest SSC values will be recorded at the point of river dredging or offshore

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:131:During some stages of the dredging and disposal activities, most notably when both TSHD and BHD are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:132:The plume effects arising from the river dredging are characterised by a short-lived localised increase in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:132:SSC by a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial extent

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:132:and reduction in concentration over following hours. Since the dredging is a near-continuous operation, the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:132:extents during the four different stages. During Stages 1-3 the dredging-related plume effects will be largely

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:132:Dock and Tees Dock. During Stage 4 the dredging-related plume effects will be largely confined to the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:132:and the Oil Terminal. Other than within the dredged areas, sediment deposition on the riverbed will be of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:132:occurs in the river channel or at jetties, it will subsequently be dredged as part of ongoing maintenance

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:132:dredging regimes, whilst material deposited back into the newly dredged areas will be re-dredged during

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:132:Overall, the changes in SSC and sediment deposition arising from the river dredging and offshore disposal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:133:dredging to the Tees Dock turning circle and approach channel and to create a berth pocket.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:140: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:140: dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:140: deposition will require periodic dredging to maintain the design depths.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:that the increase in mean tidal prism as a result of the new quay’s set-back alignment and dredging of part

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:6.6.4 Maintenance dredging and offshore disposal of dredged sediments

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:In order to provide an estimate of the present annual average maintenance dredging undertaken in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:the proposed new quay), it can be assumed that the affected area covers approximately half of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:reach 6 and approximately one-third of dredging reach 5 (these ‘dredging reaches’ are shown in the earlier

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:Between 2001 and 2019 inclusive, the average annual maintenance dredging in reach 5 was 3,585m3 and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:maintenance dredging is evenly located through each dredging reach so that the spatial scaling described

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:maintenance dredging is likely to be due to the low levels of suspended sediment measured in this reach of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:the river. By far the greatest contributions to the overall annual maintenance dredging total come from close

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:to the barrage in dredging reaches 1-3 inclusive or towards the estuary mouth in dredging reaches 8-11

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:inclusive. All non-contaminated material from maintenance dredging is usually taken to the Tees Bay A

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:a requirement for more material to become from this local reach dredged annually. Recognising this, a 10%

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:increase in annual maintenance dredging requirement may be a reasonable assumption recogising the low

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:baseline SSCs in this reach. Even under this scenario, the maintenance dredging from this reach local to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:the new quay will still yield a very low overall contribution to the net annual maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:requirements from the estuary as a whole. Therefore the potential increase in maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:141:dredging and offshore disposal regimes.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:143: Mitigation measures with regard to dredging may be required to manage

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:143: reductions. Such measures would entail limiting dredging to certain

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:143: proposed dredge on water and sediment quality are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:143: Dredging has the potential to cause negative impacts on the water

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:143: with the proposed dredge are detailed in Section 9

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:143: The proposed dredging plant has been selected

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:143: encountered during the dredge, as well as the plant

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:143: The applicant should consider the (dredging) methodology to be used,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:143: which has been used for previous capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:143: the disposal of dredged material and the timing of works.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:143: to be used, disposal of dredged material and timing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:144: As detailed in Section 3, the dredged material is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:144: dredged material previously and it can accept the total proposed amount

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:144: dispose of capital dredged sediment. Impacts

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:144: of dredged material.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:144: Due to the quantity of material proposed to be dredged, it is advised that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:144: of dredged material are presented.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:144:are predicted to occur (e.g. sediment plumes generated during capital dredging and effects on tidal currents

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:144: • Cefas Guideline Action Levels for the disposal of dredged material (Cefas, 2000); and,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:144:The Action Levels are used as part of a ‘weight of evidence’ approach to assessing the suitability of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:146:losses from dredging equipment and concentrations of contaminants within the sediments to be dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:147:impacts associated with the proposed offshore disposal of dredged material are considered in Section 26,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:147:proposed new quay at South Bank. There is however a degree of overlap between the dredge footprint for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:148: D2 Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:152:that found in 2006. The MMO has recently confirmed that the sediment to be dredged from the NGCT

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:153:13 surface samples from within and adjacent to the proposed dredge footprint for the NGCT scheme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:154: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:156:across the proposed dredge footprint. Samples will be recovered at the surface and at 1m intervals at each

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:156:of the 25 positions to the proposed dredge depth, or until geological mudstone is encountered beforehand

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:156:undertake maintenance dredging of the river to maintain the advertised dredge depths, with mid-licence

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:156:dredge disposal licence (to ensure that the maintenance dredged material remains suitable for offshore

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:157:7.5.1 Dispersion and redistribution of sediment during capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:157:Capital dredging would result in the creation of sediment plumes. To consider the potential extent and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:157:model MIKE3-HD and run for the four-month period over which dredging is likely to occur. The simulations

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:157:also accounted for the movement of dredgers and transport barges (including dredging, sailing, disposal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:157:and downtime) and four ‘stages’ of dredging (which would occur in sequence) were modelled to allow for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:157: • Stage 1: BHD working to dredge the upper soft material in the berthing pocket and river channel.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:157: • Stage 2: BHD and TSHD working in parallel to dredge the middle soft material in the berthing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:157: • Stage 3: BHD working to dredge the bottom hard material in the berthing pocket and river

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:157: • Stage 4: BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:157:the figure that the largest concentrations are local to the dredger and typically reach around 100 to 200mg/l.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:157:dredgers. At some points in the cycle, areas of these initially separate plumes combine as they move

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:157:The maximum concentrations and the spatial extents of the plume arising from Stage 3 of the dredging are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:157:and the production rate of dredging is notably lower. Figure 7.5 shows an example plume during Stage 3

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:157:dredging. Plots for the different tidal conditions are presented in Section 6.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:157:Again, peak concentrations close to the dredger are shown in the plume modelling output. On the ebb

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:158:Figure 7. 3 Plume of suspended sediment concentrations arising from dredging activities during Stage 2

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:158:(release from south-western ends of the two parallel dredging transects)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:159:Figure 7. 4 Plume arising from dredging activities during Stage 1 of the capital dredge (release from the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:159:south-western corner of the dredging transect during the ebb phase)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:160:Figure 7. 5 Plume of suspended sediment concentrations arising from dredging activities during Stage

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:160:3 (release from the south-western corner of the dredging transect during the ebb phase)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:161:Figure 7.6 Plume of enhanced suspended sediment concentrations arising from dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:162:Stage 2 of the proposed dredging schedule (when the BHD and TSHD would be working in parallel to dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:162:the proposed capital dredging works either do not cause elevations at the water quality monitoring points or

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:162:will be exceedances over baseline conditions throughout Stage 2 of the dredging schedule (as noted above,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:162:a period of approximately four weeks within the approximately four month dredging programme). The effect

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:162:7.5.2 Effects on water quality physical parameters during capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:162:The relatively limited nature of the plume extents predicted for the proposed capital dredging indicates that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:162:Additionally, a significant component of the dredged material is likely to be geological sediment, which is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:162:only for the duration of the dredge (approximately four months) and reversible. As a result, the magnitude

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:163:7.5.3 Remobilisation of contamination during capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:163:undertaken to inform whether maintenance dredging within a dock in Dover Harbour could give rise to EQS

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:163:estimates of sediment losses from dredging equipment and concentrations of contaminants within the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:163:sediments to be dredged to provide an indication of the amount of contamination that could be released into

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:164:Table 7.9 Summary of calculations undertaken for potential water column effects within the Tees estuary at low water (based on removal of 15,000m3 of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:164: Calculated loss of sediment derived using indicative values for the mass of sediment resuspended per m 3 of dredged material in CIRIA guidance (John et al., 1999) in kg/m3. Worst case S-Factor for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:164: MAC EQS Maximum Allowable Concentration. Used given the fact that dredging is not continuous as opposed to annual average EQS which averages samples collected over a year.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:166: • A relatively large proportion of the total volume of dredged material is anticipated to comprise

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:166: the dredge area.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:166: • The daily dredge volume is likely to be less than that accounted for due to stoppages associated

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:166: • The calculation is based on loss from a TSHD whereas a considerable component of the dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:166: will be undertaken with a backhoe dredger which has a lower production rate and therefore

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:166:weeks during Stage 2 of the proposed dredging programme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:168:7.6.1 Dispersion and redistribution of sediment during maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:168:increase in deposition rates and hence a requirement for more material to be dredged from this local reach

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:168:annually (see Section 6 for more information). A 10% increase in annual maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:168:However, the majority of material removed during the weekly maintenance dredging campaigns undertaken

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:168:net annual maintenance dredging requirement from the estuary as a whole. Therefore the potential increase

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:168:in maintenance dredging requirement is not expected to be significant and would be managed within existing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:168:maintenance dredging and offshore disposal regimes.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:168:dredging operations is predicted to be very low. Given the sensitivity of the Tees estuary is considered to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:191: dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:191: • Impacts on marine ecology from increased suspended sediment during capital dredging and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:191: smothering as a result of dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:191: • Impacts on marine communities due to changes in the maintenance dredge regime.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:191:from invasive species, through activities such as maintenance dredging, shipping ballast water exchange,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:194: dredging, can have a large effect upon habitats such as intertidal muds

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:195:The majority of the proposed dredge footprint is located within the subtidal zone. However, given the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:195:proposals to locate the quay in the riverbank (i.e. on existing land), dredging and excavation in front of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:199: would be indirectly affected (e.g. through sediment deposition during capital dredging).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:199: a 5mm cod end, with the trawls evenly distributed across the dredge area. Fish, shrimp and other

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:199:between the dredge footprint for the two schemes, specifically at Tees Dock turning circle. Results from the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:200: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:206:PDT would continue to undertake maintenance dredging of the river to maintain the advertised dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:207:9.5.1 Direct loss of habitat due to demolition of existing structures and dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:207:9.5.1.2 Capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:207:The proposed capital dredging would result in direct impacts to existing areas of intertidal and subtidal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:207:habitat that lie within the proposed dredge footprint, which are certain to occur.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:207:It is recognised that the proposed dredge footprint is within close proximity to the North Tees mudflat, which

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:207:the assumed side slopes to be created as part of the proposed dredge, no direct or indirect impact to this

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:207:The impact on the subtidal from the proposed dredging activities within the existing channel and part of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:207:is expected to recover following the dredging activities being carried out. However, in the short term, the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:207:benthic community would be removed from areas where dredging will be carried out.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:208:However, the capital dredging that will take place to create the berth pocket, and the rock blanket that will

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:208:wall during operation is estimated to be 5ha. The area of subtidal to be disturbed by the dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:208:dredging. As mentioned in Section 9.4.4, as there was no clear dominance of a single species, information

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:208:dredging, recruiting from the surrounding population within the year (Diaz-Castaneda et al., 1989), although

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:208:disturbance/substratum loss (i.e. from maintenance dredging). Based on these, MarLIN reports a medium

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:208:The benthic community is expected to be somewhat sensitive to physical habitat loss from the dredging of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:209:overall sensitivity of high has been assigned on a conservative basis. The dredging activities will result in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:209:dredging activities, the magnitude of this impact on the benthic community and habitat is considered to be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:209:as a result of habitat loss caused by dredging would be of moderate adverse significance.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:209:the Tees estuary which could be directly impacted by the proposed dredging activity (MarLIN, 2020).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:209:Some of the mudflat that will be lost as a result of the proposed dredge / excavation is classified as Priority

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:209:nature of the habitats within the Tees. Although the loss of the intertidal due to the dredge / excavation

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:210:It is recognised that the proposed dredge is a key component of the proposed scheme, and as such the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:210:dredging has been minimised as far as possible, within the constraint of delivering a development that meets

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:210:9.5.2 Effects of increased suspended sediment concentrations during dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:210:Dredging of approximately 1,800,000m3 of material will be required for the proposed scheme, over half of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:210:which will be for the creation of the berth pocket. Approximately 155,000m3 of this will be dredging of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:210:intertidal (defined as between Mean Low Water and Mean High Water). The proposed dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:210:as a result of dredging (at a level exceeding the respective EQSs of relevant contaminants) (Section 7.5.3).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:210:resuspended sediment which does not contain elevations beyond Action Level 2). The dredged sediment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:210:In general, sediment plumes induced by dredging are considered to pose only a limited risk to water quality

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:210:accommodate an increased oxygen demand, particularly where dredging takes place in open sea or

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:210:dredging periods. The sediment plume generated by dredging would likely be dispersed by tidal currents

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:210:away from the dredging location. The dispersion would either be upstream on the flood tide or downstream

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:211:For both types of dredger (backhoe and TSHD), peak suspended solids concentrations are predicted in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:211:immediate vicinity of the dredger. Sediment plume modelling predicts different plume extents and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:211:suspended sediment concentrations depending on the stage of dredging (as described in Section 6). In all

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:211:cases, the sediment plume is predicted to be very narrow within the river, with the phase of dredging with

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:211:the highest concentrations predicted to be 100-200 mg/L within the vicinity of the dredger, reducing to 10-

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:211:All plumes associated with different stages of dredging in the vicinity of the proposed new quay are confined

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:211:to the southern bank of the river, whilst all plumes associated with dredging of the turning circle are confined

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:211:(Figure 6.51), it was only during Stage 4 of the dredging (related to dredging of the turning circle) that any

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:211:the proposed dredge is considered to be of low sensitivity to increases in suspended sediment.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:212:The dominant sediment biotope present within the dredge footprint is EUNIS biotope A5.323, Nephtys

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:212:9.5.3 Effects of smothering following dredging on marine species and habitats

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:212:During the capital dredging a proportion of the material that is dredged would be disturbed and re-suspended

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:212:material during dredging is described in Sections 6 and 7.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:212:The proposed dredging footprint of the scheme is considered to be relatively limited; restricted to the direct

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:212:mentioned in Section 9.5.1.2, the estimated area to be disturbed directly as a result of the dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:212:Some of the sediment that is suspended as a result of the dredging activities will be deposited to the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:212:riverbed, either soon after disturbance occurring during the dredging operation (for coarser-grained

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:212:on the riverbed within the dredging footprint, whilst the deposition that occurs in other parts of the river is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:213:Any smothering caused by the proposed dredging activities is not predicted to result in the deposition of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:213:sediments at Seal Sands, Bran Sands or North Gare Sands, due to the limited footprint of dredging activities,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:213:potentially be affected. It is predicted that the proposed dredging would not give rise to the loss of a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:214:of ship wash and maintenance dredging where required) due to the shipping activities during operation and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:215:level rise. In the main channel the deposition will require periodic dredging to maintain the design depths.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:215:Changes to the cross-sectional area of an estuary due to capital dredging creation of a new subtidal area

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:215:9.6.3 Change in maintenance dredging regime affecting marine communities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:215:dredging will not change. The areas that are being proposed to be maintenance dredged for the scheme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:215:are all areas that are currently already being dredged regularly; there will be no change in the extent of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:215:seabed affected by maintenance dredging, with the exception of the newly created berthing pocket.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:215:continuously be disturbed by shipping activity and maintenance dredging and, therefore, this will prevent

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:215:communities as a result of the maintenance dredging requirement arising from the proposed scheme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:217:maintenance dredging, movement of vessels (including vessels associated with the demolition of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:217:mammals from the offshore disposal of dredged sediments are assessed in Section 26.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:220:estimate the noise levels likely to arise during the dredging works at the proposed scheme. More information

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:220:on the methodology used in the underwater noise modelling for the dredging works in Section 10.5.1.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:225:point of the proposed dredge footprint. The 2019 surveys occurred for a period of 47 days throughout the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:225:usage is relatively low in and around the proposed dredge footprint plus 1km buffer, with a grey seal density

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:225:dredging (Section 10.5 and 10.6). The density estimate of 0.014/km2 has been used to determine the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:227:at the Farne Islands (117km from proposed dredge area), Donna Nook in the Humber Estuary (173km from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:227:proposed dredge area), the Wash (233km from proposed dredge area) and at Blakeney Point (244km from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:227:proposed dredge area). With smaller haul-out sites located at Ravenscar (57km from proposed dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:227:area), Filey Brigg (81km from proposed dredge area) and at Seal Sands (3km from the proposed dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:228:Seals Sands is located approximately 3km from the proposed dredge footprint at its closest point. The Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:228:usage is relatively low in and around the proposed dredge footprint plus a 1km buffer, with a harbour seal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:230: 0.00008/km2 for dredge footprint plus 1km

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:230: 0.0003/km2 for dredge footprint plus 1km

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:230:disposal site. The winter area of the Southern North Sea SAC is located 127km from the proposed dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:230:The proposed dredge area is located within the Teesmouth and Cleveland Coast SSSI. Breeding harbour

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:230:Pupping tends to occur in June and July on the intertidal mud of Seal Sands (3km from the proposed dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:232:through the noise exposure event (dredging activity). This is a highly conservative approach, and likely has

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:232:the modelled noise levels for dredging works fell below 130 dB re 1µPa, they were of the order of ambient

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:233:publicly available (Subacoustech, 2018) has been used to assess the impact ranges of dredging works

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:233: • Backhoe dredger with an estimated sound source of 165.0 dB re 1 µPa SPLRMS @ 1m.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:233:proposed dredging in the Tees Dock turning circle to the coast).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:233:source levels predicted for the dredging activities, any marine mammal would have to remain in close

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:233:a result of underwater noise during dredging activities (Table 10.9) has been assessed based on the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:233:maximum number of animals that could be present in the maximum impact areas for dredging (Table 10.8).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:233:berth pocket, would be the same or less than those modelled for dredging activities.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:233:dredging activities based on Hartlepool approach channel underwater noise modelling (Subacoustech, 2018)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:233: et al., 2019) dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:233: SEL during dredging 0.003km2

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:234:PTS as a result of underwater noise associated with dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:234: dredging 0.00000024 grey seal Negligible / very low magnitude

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:234:The magnitude of the potential impact of PTS as a result of dredging noise is negligible / very low for harbour

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:234:The potential risk of any PTS that could result from underwater noise during the dredging works or other

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:234:activities would be limited to the immediate vicinity of the dredging works while they are taking place only.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:234:dredging works.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:234: dredging very low

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:235:The dredging process emits continuous, broadband sound into the marine environment. SPLs can vary

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:235:widely, dependent on the dredger type, operational stage, or environmental conditions (e.g. sediment type,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:235:factors will also affect the propagation of sound from dredging activities and along with ambient sound

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:235:Based on reviews of published sources of underwater noise during dredging activities (e.g. Thomsen et al.,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:235:mammals may be exposed to during dredging activities are usually below auditory injury thresholds or PTS

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:235:in marine mammals as a result of dredging activity is highly unlikely.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:235:area during dredging activities. Marine mammals may exhibit varying behavioural reactions intensities as a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:235:in the berth pocket, would be the same or less than those modelled for dredging activities.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:236:case location (closest point of the proposed dredging in the Tees Dock turning circle to the coast).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:236:display a fleeing response, as a result of underwater noise during dredging activities (Table 10.12) has been

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:236:(Table 10.11) for proposed dredging activities.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:236:dredging activities based on Hartlepool approach channel underwater noise modelling (Subacoustech, 2018)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:236: et al., 2019) dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:236: dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:236:result of underwater noise associated with proposed dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:236: during dredging (0.000000004% of the NE England MU) (temporary effect with less than 1% of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:236:The magnitude of the potential impact of TTS and fleeing response as a result of dredging noise, is negligible

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:236:The potential risk of any TTS or fleeing response that could result from underwater noise during the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:236:works would be limited to the immediate vicinity of the dredging works while they are taking place only. The

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:237:dredging works.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:237: dredging very low

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:238:vessels during the proposed dredging has been assessed based on a very precautionary worst-case of up

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:238:risk (Table 10.14). The proposed dredge footprint is approximately 0.38km2 in size (based on the dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:238:be present in the dredge footprint that could be at potential increased vessel collision risk

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:238: dredging (5% of Negligible / very low magnitude

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:238: animals in dredge 0.000002 grey seal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:238:potential increase in collision risk with vessels during dredging has been assessed as negligible (not

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:239:Table 10.15 Assessment of impact significance for increased collision risk from vessels during dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:239: dredging very low

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:240:the proposed dredge footprint. Due to the distance of the haul-out site from the proposed scheme, there is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:240:no potential for the dredge vessels to cause any disturbance to seals hauled out at the site, including the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:240:dredged material offshore, would maintain the same distance from the sandbanks as vessels currently

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:240:The proposed dredging and other underwater activities (namely demolition and removal of existing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:240:relied upon solely. Therefore, any increases in suspended sediments during dredging or other activities will

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:240:Potential impacts on fish species during dredging and other underwater activities can result from the physical

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:241:Therefore, there sensitivity to any changes in prey availability as a result of the proposed dredging is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:241:prey availability during the proposed dredging has been based on the dredge footprint of 0.38km2 and the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:241:be present in the dredge area that could be impacted by any changes to prey availability

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:241: dredge area Negligible / very low magnitude

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:241: dredge area Grey seal Low

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242: • Underwater noise during dredging;

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242: • Vessel interactions (collision risk) during dredging and operational use of the quay;

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242: • Disturbance at seal haul-out sites during dredging;

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242: • Changes in water quality during dredging; and,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242: • Changes to prey resource during dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:It is important to note that there will be no changes to the overall maintenance dredging strategy currently

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:undertaken by PDT during operation, with maintenance dredging currently undertaken virtually daily within

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:dredging during the operational phase of the proposed scheme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:10.6.1 Underwater noise during maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:Underwater noise predicted to be generated from maintenance dredging is considered to be the same or

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:less as the underwater noise predicted to occur from the capital dredging activities. Therefore, the impact

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:of maintenance dredging will be the same or less as that assessed for the construction phase (see Section

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:the maximum number of animals that could be impacted as a result of underwater noise during the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:10.6.2 Vessel interactions (collision risk) during maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:The potential for any increased collision risk during the maintenance dredging operations is considered to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:maintenance dredging will be the same or less as that assessed for the construction phase (see Section

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:number of animals that could be at increased collision risk during the maintenance dredging. The impact

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:significance for harbour porpoise, minke whale, grey seal and harbour seal during maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:dredging activities. The residual impact would be of negligible significance.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:10.6.3 Disturbance at seal haul-out sites during maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:The potential for any disturbance at seal haul-out sites during maintenance dredging is considered to be the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:same or less as that assessed for the dredging activities during the construction phase, and therefore the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:242:impact significance for any disturbance at seal haul-out sites during maintenance dredging has been

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:243:10.6.4 Changes in water quality during maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:243:The potential impact of any changes to water quality during maintenance dredging is considered to be the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:243:same or less as that assessed for the dredging activities during the construction phase, and therefore the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:243:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:243:impact significance for any changes to water quality during maintenance dredging has been assessed as

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:243:10.6.5 Changes to prey resource during maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:243:The potential impact of any changes to prey resources during maintenance dredging is considered to be the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:243:same or less as that assessed for the dredging activities during the construction phase, and therefore the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:243:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:243:impact significance for any changes to prey resources during maintenance dredging has been assessed as

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:259: P roposedDredg

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:266:vessels or disturbed by underwater noise or dredging activities. The vessels used in construction activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:271: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:275: 7 P roposedDredg

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:277: P roposedDredg

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:278: P roposedDredg

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:284: the proposed channel dredge, berth pocket and wharf demolition footprint and includes the North

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:295:12.5.1 Loss of supporting habitat due to dredging / excavation and demolition

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:295:The dredging footprint in the main channel does not overlap with the intertidal habitat available at North

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:296:supporting habitat within the footprint of the proposed dredging and excavation represents just 0.3% of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:296:As discussed further in Section 13.5.1, dredging and excavation activities resulting in an increase in SSC

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:296:The area that may be affected by increases in SSC during dredging has been described in Section 6.5.2.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:296:In summary, the largest sediment plumes are likely to arise during Stage 2 of the dredging (i.e. BHD and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:296:TSHD working in parallel to dredge in the berth pocket and the main channel). During this stage, the zone

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:296:of influence extends approximately 750m downstream and 2,500m upstream of the dredged area (see

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:296:Stage 2 dredging, presented in Section 6.5.2 indicates that significant SSC excesses from the capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:296:dredging are confined to the dredging transects and are predicted to decrease significantly with increased

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:296:distance from the dredging vessel, both laterally and along the line of the vessel, with plumes diminishing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:297:the dredging campaign may overlap with part of the common tern breeding period.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:297:affected by dredging, as detailed in Section 12.3.2). The peak count in 2020 was a decrease on previous

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:297:important for foraging and therefore terns may be sensitive to the turbidity caused by dredging operations

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:297:species (e.g. Sandwich tern). Furthermore, the occurrence of frequent (almost daily) maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:297:As described above, the zone of influence of the Stage 2 dredge presented in Figure 6.39 significantly

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:297:levels are only predicted to exceed baseline levels during the dredging campaign (a period of approximately

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:297:2 dredging will only comprise approximately one month of the approximately five month dredging campaign,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:298:and the other stages of the dredge campaign would result in a smaller plume than that described for Stage

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:298: therefore be undertaken in long strips along the axis of the estuary rather than dredging across

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:298: the width of the river. This is to reduce both the extent and impact of the dredged plume, as any

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:298: channel. This approach has been proposed for other capital dredge operations in the Tees, such

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:298:The deposition of fine sediment within intertidal areas due to capital dredging has the potential to affect

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:298:dredging, is presented in Section 6.5.2. Fine sediment will be deposited within minutes or hours if carried

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:298:in suspension from the point of release. Most falls within the dredged areas, whilst deposition elsewhere is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:298:of the effects of capital dredging and therefore a negligible impact is predicted on the waterbirds relying on

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:299:from dredging and demolition works, represented as the day / night LAeq) at most receptor locations will be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:302:of construction personnel, plant / machinery, dredgers / other vessels and construction lighting. In particular,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:302:during dredging of the main channel, dredging vessels will operate in close proximity to the North Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:302:Mudflat and Vopak Foreshore. Dredging is due to continue for a period of approximately five months. This

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:302:end of the proposed scheme footprint are within 300m of the mudflat (not including dredging activities, which

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:303:During dredging of the main channel and the turning circle, dredging vessels will operate in close proximity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:303:to the North Tees Mudflat and Vopak Foreshore. Most notably, sections of the channel dredge footprint run

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:303:adjacent to the North Tees Mudflat (this is illustrated in Figure 11.2), therefore the presence of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:303:maintenance dredging vessels which operate on an almost daily basis within the channel, including within

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:303:that there will be further habituation over the dredging period and any effects would lessen through the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:303:Disturbances to birds at Vopak Foreshore would be limited to the very short-term dredging within the Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:303:limited to Stages 1 to 3 (a period of approximately 4.5 months), but only during times when the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:303:transect runs close to the mudflat (for example, when dredging the southern half of the river it is unlikely to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:303:and the mudflat itself extends over a kilometre upstream of the dredge footprint. As such, any displacement

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:303:Given the above, it is anticipated that visual disturbances from dredging operations would have a minor

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:303:The mitigation measures outlined in Section 12.5.2 would ensure that dredging vessels only operate along

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:303:the axis of the river, rather than across it, thus minimising the frequency of occasions whereby the dredger

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:303:operates adjacent to the North Tees Mudflat. There is no practical way of avoiding dredging activities since

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:304:as a result of dredging activities and residual noise from land-based piling works. The assessment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:304:concludes that there may be a minor adverse effect as a result of the dredging leading to fish moving away

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:307:The potential impacts on fish and other marine species and habitats from the offshore disposal of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:309: Extensive dredging activity is planned for this area of the River Tees,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:309: species such as European Eel, Atlantic Salmon and Lamprey, it is result of the dredging have been

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:309: likely that dredging activity will need to take into account the considered in Section 7, and the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:309: would entail limiting dredging activity to certain times of the year migratory fish is presented in Section

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:309:of underwater noise levels arising from construction works such as piling and dredging. This section

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:317: • Byelaw XXIII – Method and Area of Fishing (Scallop Dredges) Byelaw 2015 – prohibits any

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:317: scallop dredge activity within the Tees Estuary and any marine area within 3nm of the coast.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:318:vessels under 10m in length. As outlined in Section 13.4.2.1, trawling, scallop dredging and netting gear

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:318:13.5.1 Changes in marine water quality due to dredging activity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:318:During capital dredging, approximately 1.8Mm3 of sediment (including approximately 1.27Mm3 of soft

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:318:material) will be removed by TSHD and backhoe dredger, which will result in a temporary increase in SSC

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:318:in one phase, the capital dredge campaign is anticipated to continue for approximately four months. Full

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:318:dredging, is provided in Section 6. The peak suspended sediment concentration within the Tees during the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:319:dredging campaign is predicted to be around 85 mg/l, although this is very limited in extent and would only

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:319:it is very unlikely that disturbance of sediment during the dredging would result in exceedances of EQSs,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:319:affected areas (Appleby and Scarratt, 1989). However, given that maintenance dredging is regularly

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:319:undertaken with the Tees by PDT (almost daily maintenance dredging all year round), it can be reasonably

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:319:to the disturbances associated with dredging activity.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:319:it is assumed that the programme for the capital dredging in the proposed scheme may coincide with peak

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:319:during a period of very hot and dry weather. Modelling of the sediment plume during capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:319:the dredging activity and falls below 50mg/l a short distance from the area being dredged. Concentrations

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:319:of suspended sediments are predicted to decrease significantly with increased distance from the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:320:no more than a few hundred metres from the dredging source.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:320:to the proposed dredging, significant elevations in SSC are predicted to occur in the immediate vicinity of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:320:the dredger and along the streamline and, for the most part, are expected to be restricted to a relatively

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:320:dredging phases set out in Section 6, the maximum area affected by increased SSC includes the entire

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:320:migratory fish movement in the estuary, particularly in juvenile (smolt) stages. With the dredging lasting for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:320:journeys throughout the dredging campaign.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:320: therefore be undertaken in long strips along the axis of the estuary rather than dredging across

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:320: the width of the river. This is to reduce both the extent and impact of the dredged plume, as any

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:320: dredging operation, as with other capital dredge operations in the Tees (e.g. Royal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:320:of the river at a time and, should dredging be undertaken during the months when migratory fish are present

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:320:which migratory fish will be able to move past the dredging activity (and for resident species to relocate to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:320:not viable since the size of dredger has to be sufficient to carry a large enough drag head and to have

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:320:sufficient propulsion power to undertake the required dredging operation.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:13.5.2 Entrainment of fish and fish eggs by dredging gear

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:Use of dredging apparatus, particularly TSHD dredge heads, could potentially lead to the entrainment of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:effects from direct uptake during dredging include physical injury, mortality and displacement. The potential

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:the lower Tees estuary, including the footprint of the proposed dredge, with plaice and dab notably abundant

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:Physical disturbance to the riverbed and noise/visual disturbance within close proximity to the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:crustaceans), with the presence of the dredge head likely resulting in them temporarily relocating away from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:the substrate or by other means, are likely to be sensitive to entrainment from dredging activities on that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:these species develop in the water column and are less sensitive to being entrained by dredge gear

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:operating at the seabed. Regardless, regular maintenance dredging undertaken within the proposed dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:risk of direct uptake of eggs during the capital dredge.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:since it would be limited to those present within the dredge footprint (an area of ~350,000m2). Given that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:of dredging on benthic habitat and food resources, assessed in Section 13.5.5.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:13.5.3 Underwater noise during dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:the dredging options) include movement of the drag head on the seabed, material suctioned through the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:TSHD dredgers are typically low frequencies, up to and including 1kHz (Robinson et al., 2011). Underwater

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:knots) (Theobald et al., 2011). Although backhoe dredging will also be employed during the capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:321:dredging, underwater noise associated with this method is generally considered to be lower than for TSHD

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:322:line system. As such, underwater sound arising from the dredging is expected to fall within the hearing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:322:such as those produced by operational dredging vessels, to fish, as presented in Table 13.8. Given a lack

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:323:For the purposes of this assessment, the risk that noise from dredging activities could result in mortality or

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:323: worst-case scenario (this form of dredging forms the worst-case scenario for the proposed scheme);

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:323: Tees Dock turning circle and the dredge footprint for the proposed scheme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:323: • The bathymetry and substrate in the proposed dredging location is broadly similar to that in the area

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:323:which certain unweighted RMS SPLs were expected to occur from both backhoe and TSHD dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:324:Table 13.9 Summary of the modelled ranges for unweighted RMS SPLs in 10dB increments for dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:324: Unweighted RMS Backhoe dredging TSHD

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:324:Modelled ranges for backhoe dredging are notably less than they are for TSHD. For the most sensitive

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:324:when considering use of TSHD, and 5 to 10m from source when undertaking backhoe dredging). This is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:324:will be breaks in dredging activity during the dredge/disposal cycles, plus it is highly unlikely that fish would

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:324:dredging, during an underwater noise survey conducted by Subacoustech in 2014 (Royal HaskoningDHV,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:324:will be sustained for as long as dredging is ongoing (a period of approximately four months). Noise levels

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:324:from backhoe dredging are considerably lower, and only significantly exceed background levels within a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:324:vessels and almost daily maintenance dredging, and they would also be able to temporarily move to nearby,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:324:less affected areas within the river while dredging is ongoing. Potential impacts for migratory species are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:325:downstream, particularly if dredging is undertaken during key migratory periods (see Section 13.4.1.2).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:325:Given that significantly elevated noise levels produced during backhoe dredging are not expected to extend

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:325:The TSHD campaign is predicted to last for approximately four weeks. While dredge/disposal cycles will

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:325:dredging would likely be very similar to the almost-daily maintenance dredging activities undertaken in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:325:recommence once the dredging campaign has ceased. Furthermore, the noise levels at the site will abate

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:325:for the majority of each dredge/disposal cycle while the TSHD vessel transports material to and from the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:325:dredging campaign. As such, the significance of a potential barrier effects on migratory species caused by

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:325:Use of dredging vessels are imperative for the proposed scheme. While use of smaller dredger heads may

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:325:measure. Applying the measure set out in Section 13.5.1 (dredging along the axis of the river, rather than

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:325:across the river) will help to ensure that noise levels at the opposite side of the river from the dredger remain

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:325:as low as possible over a dredge/disposal cycle, but as stated above the elevated noise levels will be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:328:fish. Removal of the wharf would result in a permanent loss of such habitat. Additionally, capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:328:on benthic estuarine flora and fauna, the regular maintenance dredging undertaken by PDT within the river

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:328:channel leads to a conclusion that the area of subtidal to be affected by the proposed dredging is unlikely

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:328:to represent an important spawning or feeding site . Regardless, capital dredging activities on existing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:328:The ongoing maintenance dredging suggests that subtidal habitat in the proposed dredge footprint is likely

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:328:Given the maintenance dredging that occurs, it can be reasonably assumed that fish feeding within the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:328:dredging activity. For this reason, the general sensitivity of fish to temporary changes in subtidal habitat in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:328:Given the above, alteration of the subtidal habitat as a result of dredging activity is considered to have a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:328:As well as the subtidal area affected directly by dredging activity, the increases in SSC anticipated during

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:328:capital dredging activity will consequently result in an increase in sediment deposition, which has the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:328:within the dredged area, whilst other areas outside the dredge footprint affected are typically less than 5cm.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:328:In the small extent of subtidal area outside the dredge footprint that may be affected by a small amount of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:330:those already subject to regular maintenance dredging and/or experience high volume of vessel traffic and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:331:13.6.3 Change in maintenance dredging regime affecting supporting habitats and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:331:effects on the existing maintenance dredging strategy, and no changes to the present-day maintenance

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:331:dredging strategy are necessary. As such, there would be no additional impact on supporting benthic

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:331:habitats and prey resources beyond those already associated with the existing maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:334: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:334: Advertised Dredge Depths (m)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:334: Advertised Dredge Depths

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:335:to the presence of the dredger and barges within and adjacent to the navigation channel (as well as any

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:335:area in the vicinity of the proposed quay but the capital dredging will, at certain stages in the construction

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:335: • Post dredge surveys and promulgation.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:335:It is envisaged that PDT would manage any potential conflicts in the same way as routine dredging and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:335:Harbour Master. Management of dredging operations within a busy port environment is a standard activity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:337: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:337: dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:337: deposition will require periodic dredging to maintain the design depths.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:337: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:339: disposal of dredged material should be taken into account.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:341: The Tees has been subject to dredging in the recent past meaning the potential for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:343: heritage is likely to be limited by dredging within the immediate area of the proposed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:343: wreck sites whether these are situated within an area of proposed new dredging 16.4.1 and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:343: dredging and offshore disposal activities (Figure 6.2).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:344: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:345: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:351: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:352:known to have been found during dredging within the river channel and there is a submerged forest is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:352:located near Hartlepool on the north bank. Although extensive dredging and reclamation has taken place

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:353: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:354: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:355:reclamation and disturbance from previous dredging within the channel. Although there is high potential for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:356: • Dredged channel/area, Navigation feature (Section of navigable waters), Modern (AD1900 –

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:356:proposed scheme (dredging and construction of the new quay) are in keeping with the historic (and current)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:358: • capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:359:by the historic reclamation and disturbance from previous dredging within the channel.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:359:potential for remains to be present, if such remains are encountered during dredging or during excavations

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:359:If present, dredging within the turning circle and approach channel and dredging / excavation to create the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:359:to effects during construction it is concluded that, other than within the dredged areas, sediment deposition

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:359:it will subsequently be dredged as part of ongoing maintenance dredging regimes, whilst material deposited

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:359:back into the newly dredged areas will be re-dredged during the capital works in order to achieve the desired

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:360: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:360: o in the main channel the deposition will require periodic dredging to maintain the design

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:360: construction as impacts are expected to already have occurred during the capital dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:360: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:367: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:373: • Dredging; and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:375: Dredging THSD/backhoe 1 C7.2 60 110.3

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:385: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:388: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:390: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:395: Dredging (one backhoe, one TSHD, two 6 20

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:395:Vessels used for the proposed dredging would be in use for a relatively short amount of time (approximately

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:424:comments on their requirements when considering the potential impact of dredging on the estuary, the need

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:426:namely the proposed dredge footprint, is in Flood Zone 3, associated with the 1 in 200-year return period

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:427: 3.7 * The proposed dredge footprint at the Tees Dock

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:454:dredging activity which are likely to translate to very small direct employment effects. As such, adopting the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:454:occur during demolition, quay construction, excavation and dredging phases. Assuming a gradual ramping

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:465: • fuel consumption from marine vessels, dredgers and road traffic; and,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:467:Capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:467:Capital dredging will be carried out within part of the Tees Dock turning circle, within parts of the existing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:467:navigation channel and within areas not currently subject to maintenance dredging to create a berth pocket.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:467:This would include dredging of marine sediments and excavation of soils / landside material within the river

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:467:The total dredged volume for marine sediments is predicted to be approximately 1,800,000m3. Dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:467:will be undertaken using a combination of a TSHD and a backhoe dredger. Different backhoe dredgers will

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:467:the transport of sediment dredged using the backhoe dredger to the offshore disposal site.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:468:Information for the calculation of GHG emissions from dredging are provided in Table 22.5.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:468:Table 22.5 Specifications of dredgers and barges to be used during the construction phase

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:468: Number of dredgers 1 1 1

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:468: Installed power dredger (kW) 8,313 1,600 1,600

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:468: dredger and barge)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:468: Power load factor estimate – dredger 50% 75% 80%

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:468:In addition to the workboats associated with demolition listed in Table 22.4, and dredgers and barges listed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:471: Construction dredger 6

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:478:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:478:The proposed scheme is predicted to generate up to approximately 1,800,000m3 of dredged sediment from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:478:been undertaken on a worst-case basis whereby all dredged sediment from the Tees estuary would be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:478:26.2 Modelling the dispersion and deposition of capital dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:478:To inform the assessment of environmental impacts from predicted offshore disposal of dredged material,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:479:The proposed disposal of dredged material within the Tees Bay C offshore disposal site has the potential

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:479:within and beyond the boundary of the Tees Bay C site due to disposal of dredged material. Seabed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:479:that there would be negligible impact on fish or fisheries due to the proposed deposition of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:479:In 2010, CEFAS undertook the ‘SLAB5’ dredged material disposal site sampling survey at a number of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:482:The proposed disposal of dredged material at the Tees Bay C offshore disposal site would be significantly

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:482:arise from offshore disposal of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:482:disposal site (an area which is designated specifically for the disposal of dredged material), however the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:484:invasive species Theora lubrica were found in samples from the Tees estuary, within the NGCT dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:484:are within the areas which are subject to regular maintenance dredging by PDT, however were located

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:484:outside of the proposed dredge footprint for the proposed South Bank scheme. The proposed dredging and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:484:dredge footprint prior to the dredge taking place (if they are not there already).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:484:species are not present at levels of concern within the Tees estuary. Maintenance dredged material from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:484:Bay for many years and will continue into the future. As a result, the disposal of dredged material within

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:484:(beyond that which has already occurred from previous and ongoing maintenance dredge disposal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:484:To undertake the disposal operation, the TSHD and/or disposal barges would transport dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:484:from the proposed dredge footprint to the Tees Bay C offshore disposal site. Consequently, there is potential

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:484:The disposal operations are linked to the dredging task and would require regular movements of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:484:plant between the dredge site and the disposal site, via the navigation channel and the coastal waters of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:484:dredged material offshore would be low (i.e. a TSHD and/or a barge), and no impact is predicted.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:484:The proposed disposal of dredged material has the potential to result in shallowing of the water depth above

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:484:significantly impacts navigation. It is concluded that the proposed disposal of dredged material into the Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:485:The underwater noise predicted to arise from the proposed dredging activities have been used as a proxy

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:485:for the assessment of potential impacts associated with offshore disposal of dredged sediments (see

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:485:disposal of dredged sediments are likely to be less than those generated during dredging activities. The

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:485:impact ranges are based on those modelled for the Hartlepool approach channel dredging scheme (see

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:485:As outlined in Section 10.5.1, there would be no risk of any PTS as a result of the proposed dredge and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:485:consequently this conclusion also applies to the proposed offshore disposal of dredged material.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:485:display a fleeing response, as a result of underwater noise during offshore disposal of dredged sediments

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:485:offshore disposal of dredged sediments

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:485: et al., 2019) dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:485: disposal of dredged 0.003km2

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:485:result of underwater noise associated with offshore disposal of dredged sediments

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:485: disposal of dredged (0.0000006% of the NE England MU) (temporary effect with less than 1% of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:486:dredged sediments is negligible / very low for harbour porpoise, minke whale, grey seal and harbour seal,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:486:disposal of dredged sediments would be limited to the immediate vicinity of the vessels while they are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:486:disposing of the dredged material. The number of harbour porpoise, minke whale, grey seal and harbour

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:486:dredged sediments on harbour porpoise, minke whale, grey seal and harbour seal, has been assessed as

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:486:Table 26.5 Assessment of impact significance for underwater noise during offshore disposal of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:486: dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:486:Potential for vessel interactions (collision risk) with marine mammals during disposal of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:487: of dredged 0.002 grey seal Negligible / very low magnitude

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:487:potential increase in collision risk with vessels during offshore disposal of dredged sediments has been

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:487: of dredged very low

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:487:disturbance due to the disposal of dredged sediment into the disposal site to seals at Seal Sands, including

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:488:As outlined in Section10.5.4, any vessels passing the seal haul-out sites as they take the dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:488:dredged sediment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:488:The offshore disposal of dredged material would temporarily increase the suspended sediment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:488:Changes to marine mammals prey resource during offshore disposal of dredged sediment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:491:the basis of the potential extent of the dredging and disposal plumes.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:492: Proposed quayside works and dredging at its North Sea supply base Approximately

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:492: The NGCT scheme comprises capital dredging up to 4.8 million m3

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:492: disposal of dredged material offshore, construction of a new 1.5km The NGCT scheme is located in very close

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:492: NGCT elements (buildings, rail terminal, road access, lighting, drainage Dredge footprint therefore is screened into the CIA.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:492: • dredging up to 750,000m3 of material from the approach

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:493: • dredging up to 372,000m3 of material from the approach

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:493: In addition to the proposed dredge (and associated disposal of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:493: dredged material), PDT is proposing to construct an underwater

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:493: being undermined following the proposed dredge.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:494: nature of this activity, maintenance dredging and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:494: for the area. However, maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:494: dredging at Hartlepool This activity has been ongoing for many years. 0km capital dredging activity required for South Bank

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:494: dredging at Hartlepool channel as the effects of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:494: 1 and Dolphin D, and a dredge of the river bed adjacent to the Consent in place small scale that there would be no significant

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:494: (with associated disposal of dredged material) to extend the existing dredge footprint cumulative impacts.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:494: Given that the dredge footprint largely overlaps

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:494: dredging in Tees Dock, which, given its location,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:494: The Tees Channel Dredge project involves a proposed deepening of would have no means of affecting the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:494: maximum maintained depth of 14m below CD. An Environmental estuary system), the area would be dredged by

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:494: Tees Channel Dredge Scoping Report (Royal HaskoningDHV, 2016) was submitted to the 0km either the South Bank project or the Tees Channel

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:494: MMO alongside a request for a scoping opinion for the project in Dredge project (not both). This removes the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:494: report has not yet been undertaken. Tees Channel Dredge project, therefore, has not

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:495: • Dredging of the existing berth and disposal of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:496: The MMO sees the proposed dredge as a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:496: maintenance dredge activity. Given the frequency,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:496: PDT is proposing to undertake a dredge of the approach channel to dredging, maintenance dredging and disposal is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:496: MMO has confirmed that PDT should submit a variation request to However, the proposed dredge could be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:496: Tees channel dredge its existing maintenance dredge licence in order to dispose of the undertaken at the same time as the capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:496: dredged material (i.e. the MMO sees the proposed dredge as a dredging activity required for South Bank (albeit

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:496: maintenance dredge activity). PDT’s intention is to undertake the within a different part of the estuary).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:496: dredge during 2020/2021.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:496: under the ‘maintenance dredge’ umbrella

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:500:American Harbour Facilities schemes and the ongoing maintenance dredging in the Tees estuary:

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:500: • dispersion of suspended sediment during capital dredging and deposition at the offshore disposal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:500:Maintenance dredging at Hartlepool and within the Tees estuary has been on-going for many years. Given

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:500:the frequency, duration and the ongoing nature of this activity, maintenance dredging and disposal is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:500:Dispersion of suspended sediment and deposition on the seabed during capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:500:All projects scoped into the CIA involve will involve capital dredging. This activity will create a plume of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:500:During the capital dredging works for the proposed scheme, other port facilities on the Tees will remain

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:500:operational. Maintenance dredging is, therefore, expected to continue throughout the capital dredge period.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:500:The capital dredge is also expected to influence the maintenance dredging requirements during and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:500:The extent of the sediment plume created by capital dredging is heavily dependent on the dredging plant

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:500:that is adopted, and this is determined by (amongst other factors) the nature of the bed and the dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:501:likely dredge plant that would be adopted and, in some cases, assumed that different types of plant would

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:501:be used for dredging different sediment types as part of the same project. As noted in Section 6.5.2, it is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:501:affected by a plume at some point during the dredging or disposal activities (in some areas this will be on a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:501:of sediment plume dispersion and deposition onto the river and/or seabed during capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:501: Combined maximum zone of influence from Stages 1 - 4 inclusive of the dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:501:NGCT TSHD dredging sand in the approach channel in low river flow, spring tide

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:501:sediment in the water column was predicted to be in close proximity to the dredger, with plume dispersion

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:501:dredging (and reclamation for NGCT) over the slack water period. In practice, much of this deposited

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:501:material will be re-dredged as part of the capital works for each scheme. At the peripheries of each plume,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:501:It should be noted that the potential for cumulative effects only arises should the dredging for the proposed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:502:(right) as a result of the proposed scheme [Note: plots show sediment plume impacts arising from dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:502:activities during Stages 1 - 4 inclusive of the capital dredging programme]

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:503:The potential impacts of the maintenance dredging programme in the Tees are considered within the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:503:Maintenance Dredging Baseline Document (Royal Haskoning, 2008). This consideration is specifically in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:503:the context of the implications of maintenance dredging for the Teesmouth and Cleveland Coast SPA and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:503: • effect of increases in suspended sediments during maintenance dredging on food resources of SPA

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:503: • increased noise levels (disturbance) during maintenance dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:503:The Maintenance Dredging Baseline Document 2008 concluded that maintenance dredging represents a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:503:potential supply of fine material to Seal Sands, with the timing of maintenance dredging in relation to the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:503:however, the Maintenance Dredging Baseline Document concluded that the maintenance dredging activity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:503:The WFD assessment presented in the latest annual update to the Maintenance Dredging Baseline

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:503:Document (Royal HaskoningDHV, 2019) concluded that, at water body level, maintenance dredging at

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:503:capital dredging have been proposed for the Anglo American Harbour facilities and the NGCT. For the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:503:former project, mitigation comprises the use of specialist dredging equipment (i.e. an enclosed grab loading

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:503:into a sealed barge) for dredging of unconsolidated material to minimise resuspension in the water column.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:503:This requirement is specified because of the elevated concentration of contaminants within the dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:504:will be no impact on tidal propagation or water levels due to the limited area of proposed dredging for this

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:504:channel in the lower estuary that will arise from capital dredging for the NGCT.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:504:that the proposed new quay alignment and capital dredge will not significantly affect the existing baseline

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:504:the dredging is predicted to draw some of the flow to the south side of the estuary, although such effects

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:505:require periodic dredging to maintain the design depths (a 10% increase in annual maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:505:proposed dredge).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:505:offshore; with the potential to increase the maintenance dredging requirements by about 10%. No increase

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:505:used for, maintenance dredging, and no effect on sediment supply to intertidal areas throughout the Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:505:The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:505:material to Seal Sands. However, the latest annual update to the Maintenance Dredging Baseline

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:505:maintenance dredging regime could adversely affect the overall estuary morphology and the ongoing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:506:maintenance dredging in the Tees estuary as follows:

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:506: • dispersion of suspended sediment during marine works, dredging and disposal; and,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:506:cumulative effects only arises should dredging for each scheme coincide. Under such circumstances, the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:506:timing of the projects and their respective programmes of capital dredging will coincide to result in a scenario

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:506:across the estuary and navigational safety is unlikely to support dredging on different sides of the estuary

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:506:In terms of maintenance dredging, there is the possibility that maintenance dredging could occur at the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:506:relatively localised effects to the dredger produced in the hydrodynamic modelling assessment for the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:506:similar throughout the estuary where regular maintenance dredging occurs. As a result, and noting the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:507:within the footprint of the proposed scheme, where the intertidal area will be dredged to create the berth

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:507:capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:507:Sediment deposition resulting from the dredging for the proposed scheme will largely be within the proposed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:507:dredged footprint. Deposition that occurs in other parts of the river is predicted to be much lower, typically

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:507:are largely similar; however, the effect of the NGCT dredge is larger, with deposition predicted to extend

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:508:Maintenance dredging is targeted at areas that require dredging to maintain navigable depths and, although

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:508:Based on the above, it is concluded that there will be no cumulative effect on the maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:508:modelled for piling and dredging for the Hartlepool approach channel (Table 27.3).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:508:dredging based on NMFS (2018) criteria for Hartlepool approach channel scheme modelling

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:508: during dredging South Bank Harbour porpoise 153 dB re 1 µPa HF SELcum 0.7km

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:509:dredging at the proposed South Bank scheme, NGCT, Hartlepool approach channel and Anglo American

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:509:temporary auditory injury (TTS) or a fleeing response from cumulative impacts of piling and dredging at the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:509: during dredging – III Block O density of 0.888/km2.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:510: during piling and dredging – density of 0.01/km2. population anticipated to be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:510:or dredging noise from the proposed scheme, NGCT, Hartlepool approach channel and Anglo American

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:510:disturbance as a result of cumulative underwater noise impacts from piling and dredging activities on

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:511:dredging activities on marine mammals

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:511: dredging at the Negligible /

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:511: • Ongoing maintenance dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:511: • Tees channel dredge.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:513:of the proposed scheme, should it be undertaken at the same time as the dredging required for the NGCT,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:513:dredging works that exist within the Tees estuary. As stated in Section 12.5.2, the main receptor that may

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:513:In order for a potential cumulative impact to manifest, the dredging campaign for the proposed scheme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:513:would need to coincide with at least one of the other dredging campaigns noted above, and both would need

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:513:this occurs, the zones of influence from dredging would create an additive effect, as demonstrated in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:513:more dredge campaigns ongoing at any one time.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:513:(i.e. dredging along the axis of the river rather than across it to ensure that, at any one time, sediment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:513:Anglo American Harbours facilities scheme, specialist dredging equipment (i.e. an enclosed grab loading

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:513:into a sealed barge) will be used for dredging of unconsolidated material to minimise resuspension in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:513:Stage 2 of the proposed capital dredging coincide with the Hartlepool Channel deepening works, the two

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:513:dredging plumes together will still affect only around 0.5% of the SPA subtidal habitat (Royal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:513:HaskoningDHV, 2015)). However, the additive effect of the sediment plumes from separate dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:514:Changes in marine water quality due to dredging activity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:514:require dredging, including the NGCT, Anglo American Harbour Facilities and the ongoing maintenance

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:514:dredging works. The main receptors that may be affected by this cumulative effect are migratory species,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:514:Should two or more of the dredging campaigns for the proposed scheme, the NGCT scheme, the Anglo

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:514:American Harbour facilities scheme and the ongoing maintenance dredging be undertaken simultaneously,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:514:and preventing migration, should the dredging be undertaken during the peak migration season.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:514:scheme in Section 13.5.1 (i.e. dredging along the axis of the river, rather than across it to ensure that, at

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:514:of the sediment plumes from separate dredging campaigns cannot be completely avoided if the campaigns

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:515:Underwater noise from the proposed scheme is predicted to arise from both dredging and land-based pile

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:515:the land-based piling, there may be minor adverse impacts from the dredging noises which could potentially

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:515:Should the dredging campaign for the proposed scheme coincide with dredging from one or more of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:515:NGCT scheme, the Anglo American Harbour facilities scheme and the ongoing maintenance dredging, the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:515:Given the regularity of maintenance dredging within the channel, resident and migratory fish in the estuary

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:515:reduce the magnitude of impacts from individual dredges. It has to be recognised that underwater noises

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:515:in isolation, though it is highly unlikely that there would be more than one or two dredge campaigns ongoing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:515:American Harbour Facilities scheme. The South Bank dredge footprint will pass adjacent to the site of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:515:Anglo American Harbour Facilities and the NGCT dredge footprint (overlapping with the proposed dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:516:to this are the dredging footprint for the Tees Dock turning circle (which is also included as part of NGCT

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:517:dredge footprint), and the landward part of the proposed scheme of this application (which overlaps in part

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:517:However, as the dredging for the turning circle will only take place once, either for NGCT or for the scheme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:521:27.5.22 Disposal of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:521:The proposed scheme involves the requirement to dispose of up to 1,800,000m3 of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:521:offshore, should no beneficial re-use options be forthcoming prior to the dredge taking place. Section 26

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:521:concludes that the disposal of dredged material will have a negligible impact on fisheries, marine ecology

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:522:estuarine-and-coastal-waters. The proposed quay, dredge area, disposal site and WFD water body outlines

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:522:maintenance dredging campaigns would be on a significantly smaller scale than the capital dredging and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:522:that the estuary is already subject to ongoing maintenance dredging, scoping is undertaken on capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:522:dredging only.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:523: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:524: • C2 Capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:524: dredger.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:526: 22.Dredging disposal strategy

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:526: 23.Reduce impact of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:526: 25.Retime dredging or disposal None identified

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:526: 27. Dredge disposal site selection

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:528:C2 Capital dredging hydromorphology and WFD mitigation are no higher sensitivity water quality due to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:528: 500m. during dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:529:C2 Capital Dredging No – dredging will not impact on the groundwater body

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:530:28.5 Detailed assessment – C2 Capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:531: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:531: to the new quay alignment) and the local deepening of the bed due to the capital dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:531: the deposition will require periodic dredging to maintain the design depths.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:531:in mean tidal prism as a result of the new quay’s set-back alignment and dredging of part of the existing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:532:Overall therefore, the effects of the capital dredging and presence of new quay wall on the flow conditions

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:532:Capital dredging within the river would result in sediment plumes. To consider the potential extent and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:532:model MIKE3-HD and run for the four-month period over which dredging is predicted to occur. The

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:532:simulations also accounted for the movement of dredgers and transport barges (including dredging, sailing,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:532: BHD working to dredge the In all tidal conditions modelled, the lateral extent of the plume across the river channel

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:532: created by the different dredgers. At some points in the cycle, areas of these initially

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:532: parallel to dredge the middle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:532: 3 BHD working to dredge the The maximum concentrations and the spatial extents of the plume arising from Stage

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:532: bottom hard material in the 3 of the dredging are much lower than those experienced during Stage 1 largely

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:532: berthing pocket and river because the material being released is coarser and the production rate of dredging is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:532: channel. notably lower. Plume very small and located close to the dredging activity.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:532: 4 Again, peak concentrations close to the dredger are shown in the plume modelling

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:532: parallel to dredge the material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:533: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:534:concentations within an hour. All other stages of proposed dredging either do not cause elevations or only

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:534:Tyne for the New Tyne Crossing to predict the consequences of dredging on dissolved oxygen

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:534:such as dredging times, seasonal fluctuations and river flows, the modelling predicted only small differences

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:534:between background and dredging impacted dissolved oxygen concentrations. No difference was noted

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:534:between the summer and winter concentrations. Furthermore, dredging in the Tyne is considered to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:534:limited plume extents for the majority of the capital dredge for the proposed scheme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:534:dissolved oxygen concentrations are only likely to be an issue when dredging within an area with an existing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:534:monitoring of dredging suggests effects are unlikely. Given the water body has a classification status of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:535: • A relatively large proportion of the total volume of dredged material is anticipated to comprise

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:535: the dredge area.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:535: • The daily dredge volume is likely to be less than that accounted for due to stoppages associated

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:535: • The calculation is based on loss from a TSHD whereas a considerable component of the dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:535: will be undertaken with a backhoe dredger which has a lower production rate and therefore

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:535:with hours) for Stage 2 which reduce as dredging progresses (see Figure 28.4).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:535:suspended solids when in close proximity to the dredger. As a result, a non-temporary deterioration in water

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:535:The majority of the proposed dredge footprint is located within the subtidal parts of the Tees estuary and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:535:therefore the majority of the dredge would impact on the lower sensitivity habitat ‘subtidal soft sediment’ of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:535:locate the quay in the riverbank (i.e. on land), dredging and excavation in front of the quay wall to create the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:536:Information regarding the habitat located within the dredge footprint is to be confirmed with a site specific

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:536:collected to inform the ES for NGCT are likely to be similar in nature to those found within the dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:536:most frequently in the estuarine locations (and within the area to be dredged for this project) was EUNIS

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:536:The biotopes recorded in the 2019 survey are likely to reflect those located in the dredge area given their

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:536:Whilst capital dredging would remove material from the seabed it would not alter the habitat type available

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:536:composition and numbers following dredging, it is predicted that the sediment communities would recover

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:537:It is also recognised that the proposed dredge footprint is within close proximity to the North Tees mudflat,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:537:Sediment suspended within the dredging plumes will fall to the riverbed, either soon after disturbance or

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:537:spillage occurring during the dredging operation (for coarser-grained sediment fractions), or at a point in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:537:by deposition. It can be seen that much of the sediment falls to the bed within the dredged areas (from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:537:where it will be re-dredged to achieve the necessary bed depths), whilst the deposition that occurs in other

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:538:Figure 28.5 Maximum river bed thickness change due to sediment deposition arising from dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:538:activities during Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:539:affected areas (Appleby and Scarratt, 1989). However, given that maintenance dredging is regularly

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:539:affected area would likely be relatively tolerant / acclimatised to the disturbances associated with dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:539:areas of the estuary at any one time. Additionally, it is proposed that dredging would be limited to one side

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:539:past the dredging activity (and for resident species to relocate to largely undisturbed areas), thus reducing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:539: There would be a temporary presence of dredging vessels but

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:539: Dredging disposal strategy Whilst there would be a temporary increase in material that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:539: Reduce impact of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:539: would not alter significantly the maintenance dredging and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:539: Retime dredging or disposal MMO and their advisors Cefas.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:539: Dredging would be managed in line with mitigation measures

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:539: Dredge and disposal site selection agreed for various environmental topics which include

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:539: dredging along the axis of the river to ensure the plumes are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:539: a result of the capital dredge is provided in Section 28.5.3.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:540:The combined effects of the dredge area and presence of new quay wall set back in the embankment are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:540: Dredging disposal strategy

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:541: Reduce impact of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:541: Retime dredging or disposal Riverbank excavation would not impact on these mitigation

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:541: Dredge and disposal site selection

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:542:The combined effects of the dredge area and presence of new quay wall set back in the embankment are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:542: Dredging disposal strategy

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:542: Reduce impact of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:542: Retime dredging or disposal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:542: Dredge and disposal site selection

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:542: on marine ecology are related to dredging of the berth and are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:543: deepened areas associated with the capital dredge which could have effects on ecological

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:543: • The combined effect of the loss of intertidal habitat (dredged berth), loss of subtidal (rock blanket)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:543: and temporary disturbance of subtidal habitat (capital dredge) on ecological potential of the WFD

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:544: • The combined effect of dredging and effects associated with piling and riverbank excavation on

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:544:same as the effects predicted for the capital dredging alone.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:544:predicted to be temporary and a significant portion of the dredge area is already subject to maintenance

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:544:dredging so is already disturbed and supports communities habituated to this disturbance. The remaining

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:544: • Ongoing maintenance dredging in the Tees estuary.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:544:All schemes require dredging and construction of new riverbank structures and therefore the following

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:544: • Disturbance of marine habitats associated with dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:545:maximum concentrations of suspended solids are localised to the dredging activity and quickly disperse

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:545:with distance from the dredger. Additionally, peaks are relatively short lived (approximately an hour at a time

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:545:for the proposed scheme for example) and associated with specific dredging phases of each scheme. The

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:545:water column would be significantly increased by the projects all dredging at the same time. Where

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:545:proposed project both include mitigation measures to dredge in long strips to reduce the effects of sediment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:545:dredgers would be working on different sides of the estuary and therefore clear channels would be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:545:Any project that requires dredging would disturb the marine communities within the sediments to be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:545:dredged. However, PDT undertake maintenance dredging in the majority of the estuary. Consequently, all

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:545:disturbance. Given dredging for all projects would not alter the substrate type or exposure, subtidal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:545:index are not predicted given the existing maintenance dredging which would be accounted for in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:545:proximity to the dredging over the slack water period for all projects. In practice, much of this deposited

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:545:material will be re-dredged as part of the capital works for each scheme. Beyond the immediate deposition

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:547: or water levels due to the limited area of proposed dredging for this project. Cumulative effects are therefore not predicted over and above those identified for the scheme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:547: Currents Modelling for the proposed scheme showed that the new quay alignment and capital dredge would have very small localised effects predominantly near to the quay wall but

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:547: require periodic dredging equivalent to a 10% increase in annual maintenance dredging requirement.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:547: material to the Tees estuary from offshore; with the potential to increase the maintenance dredging requirements by about 10%. No increase in sandy infill was predicted. A

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:547: changes in current speeds but that this would not alter the present frequency of, or methodology used for, maintenance dredging. Additionally, no effect was identified on

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:548: The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine material to Seal Sands. However, the latest annual update to the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:548: Maintenance Dredging Baseline Document (Royal HaskoningDHV, 2019) concludes that the current maintenance dredging regime does not adversely affect the overall

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:548: estuary morphology and the ongoing morphological processes at work. Additionally, maintenance dredging forms part of the baseline for WFD classification given that it is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:549:dredging’ identified risks to all WFD quality elements but detailed assessment deemed that the impacts

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:549:the locality of the dredger and only for hours at a time during Stage 2 of the proposed dredge programme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:549:All other stages of dredging required for the proposed scheme did not indicate significant concentrations of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:549:protect resident and migratory fish further reduce this risk as dredging will be limited to occurring in long

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:550:These were NGCT, Anglo American Harbour Facilities and ongoing maintenance dredging in the estuary.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:550:would be sediment plumes associated with dredging simultaneously. However, on further consideration,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:550:peak concentrations for all projects are restricted to close proximity to the dredger and disperse with

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:550:projects would occur at the same time. Mitigation measures such as dredging in long strips as required for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:555: dredging, excavation and demolition works.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:555: • Sand and shingle • Water quality reductions from demolition and dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:555: with offshore disposal of dredged material have been

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:556: Northumberland a result of underwater noise during dredging and • No pathways for effect

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:557: (100km south porpoise as a result of underwater noise during dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:557: • Mudflats and sandflats not due to underwater noise from dredging and offshore

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:559:dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:559:influence of the proposed scheme will be determined by the sediment plume during dredging activities.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:561: Proposed quayside works and dredging at its North Sea supply base Approximately

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:562: The NGCT scheme comprises capital dredging up to 4.8 million m3 Should the NGCT scheme coincide with the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:562: disposal of dredged material offshore, construction of a new 1.5km interest features of the SPA / Ramsar site could

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:562: NGCT elements (buildings, rail terminal, road access, lighting, drainage Dredge footprint noise, visual disturbance and water quality

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:562: • dredging up to 750,000m3 of material from the approach scheme, in-combination effects to the interest

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:562: • dredging up to 372,000m3 of material from the approach

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:563: In addition to the proposed dredge (and associated disposal of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:563: dredged material), PDT is proposing to construct an underwater

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:563: being undermined following the proposed dredge.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:563: nature of this activity, maintenance dredging and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:563: for the area. Although maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:563: Ongoing maintenance dredging for the scheme, there is potential for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:563: dredging at Hartlepool This activity has been ongoing for many years. 0km maintenance dredging elsewhere within the Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:563: and in the Tees estuary to coincide with the capital dredging, which could

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:563: The effects of maintenance dredging at Hartlepool

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:563: maintenance dredge disposal licence) would not

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:564: refurbishment 1 and Dolphin D, and a dredge of the river bed (with associated

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:564: dredge footprint combination effects.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:564: disposal of dredged material) to extend the existing berth pocket

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:564: The dredge footprint for the proposed scheme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:564: overlaps with the proposed Tees channel dredge.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:564: The Tees Channel Dredge project involves a proposed deepening of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:564: Tees Channel Dredge Scoping Report (Royal HaskoningDHV, 2016) was submitted to the 0km

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:564: the Tees Channel dredge would not be undertaken

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:565: • Dredging of the existing berth and disposal of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:566: dredge as a maintenance dredge activity. Given

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:566: PDT is proposing to undertake a dredge of the approach channel to maintenance dredging within the Tees, this activity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:566: its existing maintenance dredge licence in order to dispose of the capital dredging activity required for the proposed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:566: dredged material (i.e. the MMO sees the proposed dredge as a scheme (albeit within a different part of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:566: maintenance dredge activity). PDT’s intention is to undertake the estuary).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:566: dredge during 2020/2021.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:566: under the ‘maintenance dredge’ umbrella

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:570: • Loss of intertidal feeding resource due to dredging and excavation to create the berth pocket.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:570: • Indirect impacts on foraging behaviour as a result of impacts to prey resource from capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:570: • Maintenance dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:572:Effects on water quality due to dredging and disposal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:572:The capital dredging of the river will cause plumes of sediment to form. The plume effects arising from the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:572:river dredging are characterised by a short-lived localised increase in suspended sediment concentrations

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:572:by the order of a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:572:extent and reduction in concentration over the following hours. Since the dredging is a near-continuous

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:572:at varying extents depending on the dredging activities undertaken at any one time. Deposition thicknesses

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:573:be sustained in light of sea level rise. In the main channel, the deposition will require periodic dredging to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:573:maintain design depths. An increase in annual maintenance dredging requirement considered in Section

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:573:6 is predicted to yield a very low overall contribution to the net annual maintenance dredging requirements

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:573:from the estuary as a whole and the potential increase in maintenance dredging requirement could easily

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:573:be managed within existing maintenance dredging regimes (i.e. no change to the existing maintenance

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:573:dredge strategy is required).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:573:new quay’s set-back alignment and dredging of part of the existing estuary bed is 150,901m3. This

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:573:SPA, behind the existing wharf, to subtidal habitat, due to the capital dredging and excavation required to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:573:create the berth pocket. The dredging footprint in the channel and the Tees Dock turning circle does not

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:573:mudflat / other intertidal types in the estuary (i.e. the dredge will be within subtidal areas only). Dredging in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:574:as foraging grounds, indicated by WeBS core counts for the two sectors in which capital dredging will be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:574:subject to regular (almost daily) maintenance dredging by PDT therefore the impact of the capital dredge is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:574:the proposed capital dredge. Furthermore, the subtidal area within the proposed dredge footprint represents

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:575:dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:575:While 32.5ha of subtidal will be affected by the proposed capital dredging, the area already experiences

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:575:regular (almost daily) maintenance dredging by PDT so there are not expected to be any long-term changes

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:575:With the application of mitigation in the form of ensuring that the capital dredging transects run along the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:575:dredging activities associated with the highest modelled increase in SSC (i.e. Stage 2 of the dredging, which

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:575:The sediment dispersion modelling of Stage 2 dredging indicates that, at any given time, significant SSC

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:575:excesses from the capital dredging are confined to the dredging transects and are predicted to decrease

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:575:significantly with increased distance from the dredging vessel, both laterally and along the line of the vessel,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:575:month dredging programme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:575:England, 2018a). The area affected by the sediment plume generated from proposed dredging, though

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:575:Maintenance dredging in the channel, undertaken by PDT on an almost-daily basis, infers that terns using

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:575:dredged.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:575:foraging opportunities during the capital dredging are not considered to represent a significant change to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:576:approximately five-month duration of the capital dredging campaign. As such, there are expected to be no

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:576:concludes that the periodic nature of underwater noise, plus the likely habituation to background dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:576:noise due to regular maintenance dredging, means that impacts on fish are considered to be of minor

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:576:opportunities during the capital dredging are not considered to represent a significant change to foraging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:578:construction personnel, plant / machinery, dredgers / other vessels and construction lighting. Sections

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:579:scheme footprint (not including dredging activities, which are considered separately below), therefore for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:579:During dredging of the main channel and the turning circle, dredging vessels will operate in close proximity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:579:to the North Tees Mudflat and Vopak Foreshore. Most notably, sections of the channel dredge footprint run

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:579:adjacent to the North Tees Mudflat, therefore the presence of dredging vessels may result in disturbance to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:579:dredging vessels which operate on an almost daily basis within the channel, including within 30m of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:579:habituation over the proposed capital dredging period and any effects would lessen through the course of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:579:Disturbances at Vopak Foreshore would be limited to the approximately one week of dredging required to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:579:approximately 4.5 months of dredging required further upstream, but only during times when the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:579:transect runs close to the mudflat (for example, when dredging the southern half of the river it is unlikely to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:579:threshold, and the mudflat itself extends over a kilometre upstream of the proposed dredge footprint. As

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:580:associated with the capital dredging has been assumed to represent a temporary loss of foraging habitat in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:580:various impacts commonly associated with dredging and industrial work in the Tees. As such, the number

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:581:adjacent to the dredging footprint. The proposed scheme will result in the conversion of approximately 2.5ha

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:581:of intertidal to subtidal habitat, demolition of artificial structures and dredging of an area of approximately

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:581:As stated in Section 29.5.4, the effects of capital dredging on subtidal habitat are considered to be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:581:characteristic of a disturbed environment regularly affected by ongoing maintenance dredging). Impacts on

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:583:projects. However, dredging activity may, at worst, lead to some localised redistribution on North Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:583:the ongoing PDT maintenance dredging, have the potential to cause similar disturbance to the Vopak

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:583:Foreshore and / or North Tees Mudflat due to dredging activity in the channel. However, the dredge footprint

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:583:for the proposed scheme overlaps in part with the NGCT dredge footprint at the Tees Dock turning circle.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:583:The dredge at Tees Dock turning circle would therefore only be undertaken by one of these schemes, which

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:583:reduces the potential for in-combination disturbance to birds at Vopak foreshore. Maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:583:within the estuary occurs on an almost daily basis; such dredging was ongoing at the time the SPA and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:583:Ramsar site was extended and has been occurring for many years. It is therefore concluded that dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:583:dredging for all schemes screened into the assessment be required at the same time (which is highly

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:584:approach channel scheme and the ongoing maintenance dredging by PDT.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:584:An interaction between the sediment plumes would only occur in the unlikely event that the capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:584:low, with any effect confined to the footprint of the proposed dredge. The predicted increase in suspended

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:584:impact dissipating within 10 minutes following completion of the dredge (Royal HaskoningDHV, 2018).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:584:Harbour Facilities scheme, the ongoing maintenance dredging and the Dogger Bank Teesside A & Sofia

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:584:dredging transects oriented along the axis of the river rather than across to ensure that, at any one time,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:584:For the Anglo American Harbours facilities scheme specialist dredging equipment (i.e. an enclosed grab

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:584:loading into a sealed barge) will be used for dredging of unconsolidated material to minimise resuspension

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:584:extensive (and on-going) maintenance dredging within the channel on an almost-daily basis, common terns

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:585:on land are excluded. The ongoing maintenance dredging is also not considered here as this forms part of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:585:increase in maintenance dredging requirement is not expected to be significant and could easily be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:585:managed within existing maintenance dredging and offshore disposal regimes.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:585:been subject to maintenance dredging and offshore disposal as part of ongoing maintenance dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:586:impacts commonly associated with dredging and industrial work in the Tees, regardless. As such, the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:588:ABPmer (2005). Tees Maintenance Dredging Baseline Document. Report R.1149.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:588:Central Dredging Association (CEDA) (2011). Underwater sound in relation to dredging. Position Paper - 7

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:588:November 2011. Available at URL: http://www.dredging.org/documents/ceda/downloads/2011-

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:591:Halcrow (1991). Tees Estuary Dredging Review. Report for Tees and Hartlepool Port Authority.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:592:HR Wallingford (1992). Tees and Hartlepool Port Authority. Review of Dredging. EX 2580.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:593:sediment plumes arising from dredging. Construction Industry Research and Information Association

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:593:Jones, D. and Marten, K. (2016). Dredging sound levels, numerical modelling and EIA. Maritime Solutions

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:597:Pirotta, E., Laesser, B. E., Hardaker, A., Riddoch, N., Marcoux, M., and Lusseau, D. (2013). Dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:597:(2011). Measurement of underwater noise arising from marine aggregate dredging operations. Marine

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:597:Royal Haskoning (2007a). Tees Maintenance Dredging Baseline Document. May 2007.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:598:Royal HaskoningDHV (2017a). Tees Maintenance Dredging Annual Review 2016.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:598:Royal HaskoningDHV (2018). Tees Maintenance Dredging Annual Review 2017.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:598:Royal HaskoningDHV (2019a). Tees Maintenance Dredging Annual Review 2018.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:598:Royal HaskoningDHV (2020a). Tees Maintenance Dredging Annual Review 2019.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:599:(2011). The measurement of underwater noise radiated by dredging vessels during aggregate extraction

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:600:F. (2014). A review of impacts of marine dredging activities on marine mammals. – ICES Journal of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:600:WODA (2013). Technical Guidance on: Underwater Sound in Relation to Dredging. World Organisation of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-9.pdf:600:Dredging Associations.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:15:In summary, the proposed scheme consists of demolition of the existing wharf and jetties, capital dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:16: • Dredging and offshore disposal of marine sediments.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:16:The proposed scheme (and consequently the dredging requirements) has been designed to avoid the pipe

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:33:Dredged sediment is proposed to be disposed offshore; this will be subject to a marine licence from the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:33:MMO. Should it be determined by the MMO’s advisors that the dredged sediment is not suitable for offshore

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:51: the ‘marine’ works comprise demolition of the existing timber wharf and jetties, capital dredging (to

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:51: disposal of dredged sediments and construction and operation of a new quay (to be set back into

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:51: dredging concept for the proposed scheme (the concept design for the proposed quay is ongoing,

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:52:and jetties, capital dredging (to deepen the Tees Dock turning circle and approach channel and to create

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:52:a berth pocket), offshore disposal of dredged sediments and construction and operation of a new quay (to

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:53: Dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:56: Benthic ecology It is advised that a habitat survey should occur within the dredge footprint to identify any important benthic habitats or species.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:56: The Tees has been subject to dredging in the recent past meaning the potential for archaeologically significant deposits or features to be impacted in

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:57: • Dredging of the River Tees;

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:57: The applicant should consider the methodology to be used, the disposal of dredged material, and the timing of works. Decisions should be underpinned

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:57: Dredging and disposal

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:58: The disposal site must be specified, ensuring that it has taken capital dredge material before, and can accept the total proposed amount of dredge

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:58: for disposal to sea (and to inform the impact assessment). Any material to be dredged and disposed of within licenced disposal areas at-sea must not

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:58: The MMO would support the consideration of using the dredged material for beneficial use. This could include recharge of intertidal areas elsewhere in

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:58: Specific information on the dredging and piling activities will be required, including the duration of works and anticipated working hours, the likely noise

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:58: The proposed works overlap with the Northern Gateway Terminal project. The applicant has estimated that the works will require a capital dredge of 2.5

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:58: million cubic metres (m3) of material. The applicant has stated that this will be reduced to 1.6 million m3 of capital dredge material if the works are carried

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:58: out alongside the Northern Gateway project (capital dredge of 4.5 million m3).

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:61:from the proposed dredging and disposal activity by coupling a sediment plume model built in MIKE21-MT

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:61:be run for the entire dredging period under astronomic tidal and daily mean fluvial flow conditions.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:61:(in particular the effect of resuspension and dispersion of sediment during dredging and disposal activities).

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:62:disturbance would be from dredging and vessel transits which are a regular occurrence in the Tees.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:62:Maintenance dredging is undertaken on a very regular throughout the Tees estuary and therefore

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:62:significant underwater noise disturbance effects are not anticipated due to the proposed capital dredge.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:65: 4.19. Offshore disposal of dredged material

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:65:offshore disposal of dredged material.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:65:The potential impact of the disposal of dredged material will be assessed in the context of Cefas records

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:65:dredged material from other consented projects.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:67:Appendix 1 Preliminary dredging concept for the current scheme being progressed by STDC

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: 3. ALL DREDGE SLOPES ARE ASSUMED TO BE 1:3. TO BE

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: 7. PROPOSED SCHEME AVOIDS DREDGING OVER THE

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: DREDGE DEPTH WILL NEED TO INCREASE BY THE

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: MAINTAINED DREDGE LEVEL -10.4mCD

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: DESIGN DREDGE LEVEL -11.0mCD

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: PRELIMINARY DREDGING

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: MAINTAINED DREDGE LEVEL -10.4mCD BM CF TJR

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:68: DESIGN DREDGE LEVEL -11.0mCD DATE SCALE REF.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:75: • Dredging of the River Tees,

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:76:limited by dredging within the immediate area of the proposed dock facilities. Archaeological review of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:76:whether these are situated within an area of proposed new dredging (either for construction or on-

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:79:jetties, capital dredging (to deepen the Tees Dock turning circle and approach

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:79:channel and to create a berth pocket), offshore disposal of dredged sediments and

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:80: wharf and two jetties, capital dredging (to deepen the Tees Dock turning circle and

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:80: approach channel and to create a berth pocket), offshore disposal of dredged

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:81: • capital dredging (to deepen the Tees Dock turning circle and approach

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:81: • offshore disposal of dredged sediments

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:85:existing Infrastructure (the dilapidated timber wharf and jetties), capital dredging within the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:85:estuary and offshore disposal of dredged material, construction of a combi-piled quay wall

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:133:5.4 Dredging Methodology and Schedule 53

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:133:5.4.1 Dredging Method 53

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:133:5.4.2 Dredging Schedule 54

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:133:5.5 Backhoe Dredging and Disposal Cycle 57

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:134:5.6 TSHD Dredging and Disposal Cycle 59

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:134:5.7.2 River Dredging 61

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:134:Table 5-1: Soil Types to be dredged 51

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:134:Table 5-2: Particle size distribution for dredged soil types 52

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:134:Table 5-3: Dredging Schedule Overview 55

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:136:Figure 5.1: Dredging Layout 53

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:136:Figure 5.2: South Bank Wharf Dredge Site and Tees Bay C Offshore Disposal Site 54

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:Figure 5.3: Sediment release schedule for dredger 56

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:Figure 5.5: Maximum enhanced suspended sediment concentrations arising from dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:Figure 5.6: Maximum enhanced suspended sediment concentrations arising from dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:Figure 5.7: Maximum enhanced suspended sediment concentrations arising from dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:Figure 5.8: Maximum enhanced suspended sediment concentrations arising from dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 65

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:from dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 66

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 67

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:from disposal activities during Stages 1 - 4 inclusive of the capital dredging programme 69

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:137:dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 70

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:139: movement of suspended sediment from the proposed dredging and disposal activities by coupling with

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:139: 4-month dredging and disposal schedule.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:189: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:189: dredging.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:189: of sediment. In the main channel the deposition will require periodic dredging to maintain the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:190: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:191:investigate the suspended sediment transport effects of the proposed dredging of the channel and the berth

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:191:Available soil data indicates that it is expected that the dredging material consists of different soil types. A

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:191:summary of the expected dredging soil types based on the ground investigation data (Definitive Feasibility

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:191:between soft and hard material because it is expected to influence the choice of dredging equipment to be

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:191:Table 5-1: Soil Types to be dredged

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:192:Table 5-2: Particle size distribution for dredged soil types

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:192:The dredging layout for the South Bank dredging scope is shown in Figure 5.1. The river channel in front

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:192:of the South Bank Wharf as well as part of the Tees Dock Turning Area will be dredged to a level of -11mCD.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:192:The berth pocket in front of the new quay has a design bed level of -13.6mCD, but the dredge volumes

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:192:considered in the dispersion model include an extra two metres of dredge material down to a bed level of -

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:192:dredging schedule. Due to the uncertainty of the time when the dredging will take place, the worst scenario

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193: Figure 5.1: Dredging Layout

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193:5.4 Dredging Methodology and Schedule

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193:The dredging method, dredging schedule and details of the sediment release settings for the sediment

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193:5.4.1 Dredging Method

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193:The sediment will be dredged using two types of dredgers. The soft soil material below a depth of -5mCD

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193:will be dredged by using a Trailing Suction Hopper Dredger (TSHD), and a Backhoe Dredger (BHD) will be

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193:used to dredge material above this level. The hard soil material will also be dredged by the BHD because

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:193:All dredged material will be taken to the “Tees Bay C” offshore disposal site which is approximately 18km

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194: Figure 5.2: South Bank Wharf Dredge Site and Tees Bay C Offshore Disposal Site

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:5.4.2 Dredging Schedule

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:The dredging schedule and quantity for the BHD and TSHD are described in Table 5-3. The dredging will

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:BHD working in parallel on dredging the soft soil material below the level of -5mCD, and then the BHD will

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:A total of 1.8 million m3 of bed material will be dredged over a period of 17weeks. The simulation covers the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:entire dredging period and the movement of dredgers and transport barges were tracked for the processes

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:of dredging, sailing, disposal and downtime for bad weather, refuelling, and equipment maintenance.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:Figure 5.3 and Figure 5.4 show the sediment release schedules for the dredgers at the South Bank Wharf

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:site and Tees Dock Turning Area, and at the offshore disposal site respectively. The dredging schedule will

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:start with the BHD dredging the soft material above -5mCD at South Bank Wharf for 3.7 weeks, followed by

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:the TSHD and BHD working in parallel dredging soft material below -5mCD which will take 3.7 weeks. Then

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:the BHD will start dredging the hard material at the site for 8.6 weeks. After this time the BHD and TSHD

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:will then be working in parallel again to dredge the material from the Tees Dock Turning Area which will take

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:0.7 weeks. This means that the whole dredging campaign will take 17 weeks to complete.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:194:The disposal schedule will follow the same pattern as the dredging schedule in that the barge filled by the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:195:Table 5-3: Dredging Schedule Overview

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:195:Dredge time (minutes) 75 123 123 286 75 123

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:195:Total dredging cycle time

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:195:Dredging volume (m3) 568,577 361,423 360,000 330,000 103,933 66,067

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:195:Dredging time (weeks) 3.7 3.7 3.7 8.6 0.7 0.7

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:196: Figure 5.3: Sediment release schedule for dredger

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:The following assumptions have been made for the simulation of sediment plumes arising from dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:At any one time at least one dredger, or for some of the dredging period two dredgers, are scheduled to be

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:in operation and will operate at full capacity. The dredgers will release material along a single line along the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:channel, the berth pocket and part of the Tees Dock Turning Area. At the offshore disposal site, the dredger

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:approach. The dredger will actually move around the dredging area and disposal site along multiple lines

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:5.5 Backhoe Dredging and Disposal Cycle

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:This section describes the backhoe dredge and disposal cycle for the different soil types and depth layers.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:The backhoe dredger will dredge 360,000 m3 of soft surface layer material above a level of -5mCD at the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:South Bank Wharf site. The dredger will operate continuously filling a barge, with two barges being in

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:operation sailing back and forth to the offshore disposal site. The dredger disperses sediment into the water

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:197:The backhoe will dredge for 123 minutes to load one barge, the barge will then sail for 60 minutes to the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:Once the backhoe dredger has removed the soft middle layer, the backhoe will dredge 361,423 m3 of soft

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:middle layer material below a level of -5mCD at the South Bank Wharf site. The dredger will operate

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:site. The dredger disperses sediment into the water column at a sediment release rate of 5.6 kg/s. The

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:The backhoe will dredge for 123 minutes to load one barge, the barge will then sail for 60 minutes to the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:Once the backhoe dredger and TSHD have removed the soft middle layer, the backhoe will dredge 330,000

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:m3 of hard bottom layer material at the South Bank Wharf site. The dredger will operate continuously filling

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:a barge, with two barges being in operation sailing back and forth to the offshore disposal site. The dredger

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:The backhoe will dredge for 286 minutes to load one barge, the barge will then sail for 60 minutes to the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:Once the backhoe dredger has at the South Bank Wharf site, the backhoe will dredge 66,067 m3 of soft

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:middle layer material below a level of -5mCD at the Tees Dock Turning Area. The dredger will operate

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:site. The dredger disperses sediment into the water column at a sediment release rate of 5.6 kg/s. The

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:The backhoe will dredge for 123 minutes to load one barge, the barge will then sail for 60 minutes to the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:198:dredge cycle takes 248 minutes.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:5.6 TSHD Dredging and Disposal Cycle

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:This section describes the TSHD dredge and disposal cycle for the different dredge locations.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:The TSHD will dredge 568,577m3 of soft middle layer material below a level of -5mCD at the South Bank

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:Wharf site. The dredger will operate for 75 minutes to load to full capacity, during which time it disperses

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:The TSHD will dredge for 75 minutes to load, then sail for 50 minutes to the disposal site, discharge for 10

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:site. The total dredge and transport cycle take 190 minutes.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:The TSHD will dredge 103,933m3 of soft middle layer material below a level of -5mCD at the Tees Dock

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:Turning Area. The dredger will operate for 75 minutes to load to full capacity, during which time it disperses

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:The TSHD will dredge for 75 minutes to load, then sail for 50 minutes to the disposal site, discharge for 10

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:199:site. The total dredge and transport cycle take 190 minutes.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200:The model simulations account for the movement of dredgers and transport barges (including dredging,

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200:the river dredging operations (except for allowed periods of downtime) from along the centre line of the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200:dredged areas, running along the axis of the river channel, and also on a periodic basis from a single point

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200:in the centre of the offshore disposal site. The overall river dredging, and offshore disposal operations may

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: 1. BHD working to dredge the upper soft material (above -5m CD) in the berthing pocket and river

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: 2. BHD and TSHD working in parallel to dredge the middle soft material (below -5m CD) in the berthing

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: 3. BHD working to dredge the bottom hard material in the berthing pocket and river channel

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: 4. BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200:Results from the sediment dispersion modelling are discussed in turn for the river dredging and offshore

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: (intervals) throughout the entire 4-month period covered by the dredging and disposal simulations

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: spatial extents of enhancement in SSC or deposition on the bed from any stage of the river dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: or offshore disposal operations during the relevant stage of the dredging programme. It is important

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:200: affected by a plume or deposition at some point during the 4-months of dredging or disposal

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201:5.7.2 River Dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201:end of the dredging transect to the north-eastern end.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201:(up to a few hundred mg/l) are confined to the release points along the dredging transect at the proposed

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201:development site. Further upstream and downstream of the areas directly dredged, the SSC enhancement

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201:drops markedly (typically below 50mg/l a short distance from the point of dredging, and at the peripheries

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201: Figure 5.5: Maximum enhanced suspended sediment concentrations arising from dredging activities

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:201: during Stage 1 of the capital dredging programme

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:time, moving from the south-western end of each of two parallel dredging transects to the north-eastern

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:The maximum ‘zone of influence’ from Stage 2 of the dredging activities is shown in Figure 5.6. This shows

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:that during Stage 2 of the dredging, broadly similar patterns to those observed in Stage 1 are anticipated,

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:parallel dredging activities. Despite these subtle differences, maximum concentrations of SSC (up to a few

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:hundred mg/l) remain confined to the release points along the dredging transects at the proposed

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:development site. Further upstream and downstream of the areas directly dredged, the SSC enhancement

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202:drops markedly (typically below 50mg/l a short distance from the point of dredging, and at the peripheries

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202: Figure 5.6: Maximum enhanced suspended sediment concentrations arising from dredging activities

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:202: during Stage 2 of the capital dredging programme

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203:end of the dredging transect to the north-eastern end.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203:The maximum ‘zone of influence’ from Stage 3 of the dredging activities is shown in Figure 5.7. This shows

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203:that during Stage 3 of the dredging, the maximum plume extent and maximum SSC values within the plume

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203:are much lower than experienced during both Stage 1 and 2 of the dredging (note the slight plume shown

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203:in the mid channel is a remnant of the Stage 2 dredging, which has not fully dissipated before Stage 3

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203: Figure 5.7: Maximum enhanced suspended sediment concentrations arising from dredging activities

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:203: during Stage 3 of the capital dredging programme

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204:end of each of two parallel dredging transects to the north-eastern end.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204:The maximum ‘zone of influence’ from Stage 4 of the dredging activities is shown in Figure 5.8. This shows

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204:that during Stage 4 of the dredging, the plume is created at the turning circle and along parts of the north

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204:dredging within the turning circle (up to a few hundred mg/l). Further upstream and downstream of the areas

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204:directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a short distance from the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204:point of dredging, and at the peripheries below 20mg/l) before merging with low background concentrations

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204: Figure 5.8: Maximum enhanced suspended sediment concentrations arising from dredging activities

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:204: during Stage 4 of the capital dredging programme

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:205:The combined maximum ‘zone of influence’ from Stages 1 - 4 inclusive of the dredging activities has been

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:205:and that during the 4 months of dredging, all plume effects are confined to within the river reaches that

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:205:Furthermore, all plumes associated with dredging of the berthing pocket and river channel in the vicinity of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:205:plumes associated with dredging of the turning circle are confined to the left bank (north of centre line)

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:205: Figure 5.9: Maximum enhanced suspended sediment concentrations (near-bed layer) arising from dredging activities

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:205: during Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:206: Figure 5.10: Maximum enhanced suspended sediment concentrations (near-surface layer) arising from dredging activities

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:206: during Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:207:the plumes created by river dredging. It can be seen that much of the sediment falls to the bed within the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:207:dredged areas (from where it will be re-dredged to achieve the necessary bed depths), whilst the deposition

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:207: Figure 5.11: Maximum river bed thickness change due to sediment deposition arising from dredging activities during

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:207: Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:207:navigation, timeseries plots of changes throughout the dredging programme have been extracted from the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:208:licensed for the disposal of dredged sediment and is routinely monitored as part of a national programme.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:208:dredging programme has been plotted in Figure 5.12 for the near-bed layer of the water column. It should

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:209: during Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210: Figure 5.13: Maximum river bed thickness change due to sediment deposition arising from dredging activities during

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210: Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210:The river dredging and offshore disposal activities will both cause plumes of sediment to form close to the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210:During dredging, there will be release of sediment particles from the deliberate physical disturbance to the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210:river bed and, more significantly, from overflow when dredged material is loaded into the dredger’s hopper

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210:(for TSHD) or the transport barge (for BHD). Such releases will be ongoing through each dredging cycle

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210:until the dredging activity ceases due to downtime (e.g. adverse weather, vessel maintenance) or at

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210:scheduled breaks between stages of dredging activity. During offshore disposal, a single hopper load will

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:210:Once a plume is generated, the highest SSC values will be recorded at the point of river dredging or offshore

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:During some stages of the dredging and disposal activities, most notably when both TSHD and BHD are

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:The plume effects arising from the river dredging are characterised by a short-lived localised increase in

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:SSC by a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial extent

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:and reduction in concentration over following hours. Since the dredging is a near-continuous operation, the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:different stages. During Stages 1-3 the dredging-related plume effects will be largely confined to the channel

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:During Stage 4 the dredging-related plume effects will be largely confined to the channel areas north of the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:than within the dredged areas, sediment deposition on the river bed will be of very minor magnitudes, in

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:at jetties, it will subsequently be dredged as part of ongoing maintenance dredging regimes, whilst material

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:deposited back into the newly dredged areas will be re-dredged during the capital works in order to achieve

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:211:Overall, the changes in SSC and sediment deposition arising from the river dredging and offshore disposal

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: 1.2. Capital dredging is anticipated to be required within part of the Tees Dock turning

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: The total dredge volume is predicted to be 1,960,000m3.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: 1.3. Two active disposal sites were identified that could potentially accept dredged

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: dredged material would be disposed of at Tees bay C (TY150) disposal site.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: 1.4. It is noted that a significant proportion of the proposed dredge volume is anticipated

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: Management of Dredged Material, samples should be taken to provide a good

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: representation of the volume of material to be dredged. The distribution and depth of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: sampling should reflect the size and depth of the area to be dredged, the amount to

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: be dredged and the expected variability in the horizontal and vertical distribution of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: 2.2. In consideration of the volume details of the proposed dredge, the MMO advises that

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:239: 25 sample sites will be required from across the dredge area to provide adequate

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:240: a maximum dredge depth as indicated on the sample plan form attached in

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:240: 2.4. If the maximum dredge depth exceeds the depth at which mudstone is located,

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:240: dredged and samples must be representative of the material to be dredged (see

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:240: 3.1. Details of recent sampling from within the dredge area were provided. This included

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:240: maintenance dredge and disposal licence (L/2015/00427/4). 10 surface samples

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:241: 2017, comprising of 37 surface samples within and adjacent to the proposed dredge

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:241: footprint for the NGCT. The proposed dredge footprint for NGCT marginally overlaps

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:241: majority of the NGCT dredge footprint is located downstream of the proposed survey

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:242: 5.3. Where long term licences for maintenance dredging will be applied for, additional

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:245:Stations should be evenly distributed across the dredge area

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: 3. ALL DREDGE SLOPES ARE ASSUMED TO BE 1:3. TO BE

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: 7. PROPOSED SCHEME AVOIDS DREDGING OVER THE

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: DREDGE DEPTH WILL NEED TO INCREASE BY THE

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: MAINTAINED DREDGE LEVEL -10.4mCD

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: DESIGN DREDGE LEVEL -11.0mCD

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: PRELIMINARY DREDGING

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: MAINTAINED DREDGE LEVEL -10.4mCD BM CF TJR

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part1-3.pdf:291: DESIGN DREDGE LEVEL -11.0mCD DATE SCALE REF.

MLA_2020_00507-Marine Coordinate Schedules-13.pdf:3:Channel and berth pocket - capital dredge

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:1:within the range experienced with passing vessels, although it will be sustained for as long as dredging is

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:1:predicted to last for approximately four weeks”. Please can the duration of the proposed dredging works

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:1:The indicative durations of the proposed dredging works are detailed in Section 3.6.1 of the EIA Report.

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:1:The proposed dredge can be summarised as follows:

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:1: • Removal of soft material above -5m bCD using a backhoe dredger (approximately four weeks).

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:1: • Removal of soft material below -5m bCD using a backhoe dredger and a TSHD (approximately

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:1: • Removal of soft material in the turning circle using a backhoe dredger and a TSHD (approximately

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:1: • Removal of hard material using a backhoe dredger (approximately 10 weeks).

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:1:The proposed dredging activities are therefore predicted to take in the order of five months to complete.

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:2:required is the maximum total bed level change from the cumulative disposal of the entire dredge load.

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:2:plumes from separate disposal activities over the whole dredging campaign.

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:2:As can be seen from the modelling, a very comprehensive dredging and disposal schedule was developed.

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:2:dredge load be presented and discussed with respect to the licensed disposal site. Given the modelling

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:4:potentially accelerated deposition due to flow velocity reduction impact the future dredge requirement in

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:5:increase in annual maintenance dredge requirement at this location, but that this is not expected to be

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:5:maintenance dredging requirement is not expected to be significant and would be managed within existing

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:5:maintenance dredging and offshore disposal regimes.

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:5:in terms of actual flow speeds at the site, and it appears that this may be up to 50% reduction? Dredging

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:5:relative to the present. The dredged pocket and area of affected flows appears to occupy the full width of

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:5: estuary containing the proposed dredging/quay. The effect can, at some tidal states (but not all), be

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:5: dredging. After the scheme is in place there will be no change in the local process (i.e. it will not

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:5: requirement for maintenance dredging. There will be no direct change in baseline hydrodynamics

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:5:2. We have not claimed that the dredging of the Tees Dock turning circle will have “no hydrodynamic

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:15: • Revised modelling of the plume that takes into account other dredging activity which may be

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:15:specifically covers the potential effects on water quality as a result of dredging from all projects which were

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:15:dredging for each scheme coincide. In reality, this is highly unlikely to occur. Under such circumstances,

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:timing of the projects and their respective programmes of capital dredging will coincide to result in a

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:extents across the estuary and navigational safety is unlikely to support dredging on different sides of the

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:suspended sediment from any stage of the dredging). It is important to note that this type of figure does

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:river channel that will become affected by a plume at some point during the dredging campaign (in some

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:Clarification on the proposed exact times (i.e. months) of dredging works so that the likelihood of potential

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:The applicant is not able to define months within which the dredge is to be undertaken (as this is dependent

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:a worst case basis whereby the dredge and disposal could be undertaken at any time of the year. This

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:Recommend that the you consider the feasibility of undertaking dredging works outside the peak upstream

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:The applicant is not able to define months within which the dredge is to be undertaken (as this is dependent

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:a worst case basis whereby the dredge and disposal could be undertaken at any time of the year. This

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:provides the greatest flexibility to the applicant. It would not be desirable to restrict the proposed dredge

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:Report, as well as the fact that PD Teesport undertake maintenance dredging on almost a daily basis all

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:Cefas recommend that you present a revised sediment dispersion model that includes the dredging

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:proposed for NGCT and regular maintenance dredging (i.e. dredge material quantities, times and

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:dredging to one side of the river at a time and better determine the likelihood of potential cumulative effects

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:16:maintenance dredging could be carried out at various locations depending on need.

MLA_2020_00507-PC1084-RHD-SB-EN-CO-EV-1116 Response to Cefas comments-10.pdf:19: 2.5. Dredge and disposal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:3:3.6 Capital dredging of marine sediments and excavation of soils / landside materials within

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:3:3.8 Disposal of dredged material 17

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:7:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL 470

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:7:26.2 Modelling the dispersion and deposition of capital dredged material and effect on water

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:8:28.5 Detailed assessment – C2 Capital dredging 522

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:9:In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:9:dredge and disposal activities).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:9: which covers the potential zone of influence of both the dredge and disposal activities.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:10: P roposedDredg

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:13:(90m wide) and the associated dredging requirements. Consultation with PD Ports’ Harbour Master during

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:15:along the river bank at South Bank (including an electrical substation), capital dredging (to deepen the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:15:berth pocket), offshore disposal of dredged sediments and construction and operation of a new quay (to be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:16:would all be removed to avoid issues arising during the subsequent capital dredge. It is proposed that the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:17: BERTH POCKET DREDGING AREA BERTH POCKET DREDGING AREA

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:17: CHANNEL DREDGING AREA CHANNEL DREDGING AREA

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:17: DREDGING AREA

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:3.6 Capital dredging of marine sediments and excavation of soils /

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:Drawing PC1084-RHD-SB-EN-DR-EV-1113 below shows the proposed dredge footprint. For the purposes

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:of this EIA, a dredge envelope has been assessed (Figure 1.1). As shown on the drawing, dredging is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:dredging to create a berth pocket. The Tees Dock turning circle and areas of navigation channel are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:dredged to a depth of 15.6m bCD (maintained at a depth of 13.0m bCD). The berth pocket is proposed to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:be dredged to 15.6m bCD initially in order to allow for the installation of a 2m thick rock blanket (discussed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:area that is currently partly land and estuarine. There would, therefore, be a requirement for dredging of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:berth pocket. The proposed scheme (and consequently the dredging requirements) has been designed to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:A summary of the proposed design levels and dredge volumes for marine sediments is detailed in Section

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:3.6.1 Volume of marine sediments to be dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:The total dredge volume for marine sediments is predicted to be approximately 1,800,000m3. As detailed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:in Table 3.2, the dredge is proposed to be undertaken in two phases to match the anticipated phased

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:construction of the quay however the assessment undertaken within this EIA assumes that the dredging is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:dredged material is anticipated to comprise geological material (i.e. mudstone) (approximately 340,000m3),

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:22:would be dredged to 11m bCD with the exception of the berth pocket which will be dredged to 15.6m bCD.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: AREA DREDGED

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: DREDGE TO -11.0mCD

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: DREDGE TO -15.6mCD

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: DREDGED TO -11mCD MUDFLATS

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: AREA DREDGED

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: AREA DREDGED

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: DREDGED TO -11mCD

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: PHASE 1 UPSTREAM AREA DREDGED

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: AREA DREDGED

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:23: DREDGING PLAN

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:Table 3.2 Proposed volumes of marine sediments to be dredged (excluding over-dredge volumes)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24: Material classification Phase 1 dredge volume (m3) Phase 2 dredge volume (m3) Total dredge volume (m3)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:It is anticipated that dredging will be undertaken using a combination of a Trailing Suction Hopper Dredger

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:(TSHD) and a backhoe dredger. It is envisaged that up to three barges will be required to support with the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:transport of sediment dredged using the backhoe dredger to the offshore disposal site. It is assumed that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:a TSHD would be used to dredge soft material and it has been assumed for the purposes of assessment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:It is expected that the backhoe dredger would be used for both the near surface soft material and the hard

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:material (mudstone). For the purposes of the assessment, it has been assumed that the dredge process

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24: • Removal of soft material above -5m bCD using a backhoe dredger (approximately four weeks).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24: • Removal of soft material below -5m bCD using a backhoe dredger and a TSHD (approximately four

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24: • Removal of soft material in the turning circle using a backhoe dredger and a TSHD (approximately

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24: • Removal of hard material using a backhoe dredger (approximately 10 weeks).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:24:destabilising the quay wall. The implication is that the berth pocket would need to dredged to a greater

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:3.8 Disposal of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:There are two active disposal sites that potentially could accept dredged material from the Tees estuary:

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:capital dredged material but has received quantities of maintenance material in some years. Tees Bay A

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:For the purposes of assessment and the marine licence application, it has been assumed that all dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:The Phase 1 quay wall would extend 90m either side of the berth pocket to retain the dredged slopes back

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:assessed the worst-case scenario of building the quay and dredging the channel in one phase. However,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:and capital dredging (see Drawing PC1084-RHD-SB-DN-DR-C-1388). The rock blanket would be installed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:25:following completion of the dredge.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:26: DREDGE TO Newcastle upon Tyne, NE1 4EE

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:26: DREDGE LEVEL.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:26: CLAY DREDGE LEVEL CLAY

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:27: This assumes all dredging plant

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:27: Capital dredging 2 months 3 months 5 months are working at full capacity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:27:Whilst capital dredging is taking place, there is potential for PDT to be undertaking maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:27: • Dredging plant

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:27: o Backhoe dredger

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:27: o Barges to transport material from the backhoe dredger to the offshore disposal site.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:28:result of capital and maintenance dredging, as well as INNS being introduced or spread from ship ballast

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:30:known to cross underneath the Tees estuary. As dredging is not proposed to be undertaken above the pipe

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:32:Alternative dredging plant

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:32:There is likely to be a requirement to utilise a number of different types of dredger depending on the nature

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:32:of the material being dredged. Therefore, for different parts of the dredging it will be necessary to use a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:32:TSHD or backhoe. The environmental implications of using these dredgers have been assessed and no

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:Approach channel and berthing pocket dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:The proposed dredged depth in the navigation channel has been chosen to maximise the tidal window to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:3.15.3 Alternative uses of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:uses for the dredged arisings, with disposal at sea being the least preferred option (in accordance with the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:reclamation projects. The alternative options that have been considered for the disposal of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:The proposed dredge is predicted to give rise to boulder clay, sand and silts. Sand and boulder clay could

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:STDC is not aware of any construction projects within the local area that require the use of dredged material,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:continue to remain open to the re-use of dredged material within construction projects.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:(possibly doubling as little tern nesting islands) could be created using the dredged material from Hartlepool

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:33:suitable locations for the re-use of dredged sediment; three were located adjacent to the South Gare

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:34:scheme by beneficially re-using dredged material would be welcomed. It is considered that such beneficial

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:34:re-use of dredged material could also represent a possible option for the South Bank scheme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:34:STDC will continue to investigate the option of creating bird islands using dredged material, possibly linking

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:34:Tees (or any beneficial use of dredged material in the marine environment) would require a separate marine

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:34:licence application to deposit dredged material, or potentially a variation to the marine licence for the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:35: • Dredging;

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:35: • Capital dredging (removal activity).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:35: • Offshore disposal of dredged material (deposit activity).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:35:The proposed dredge footprint is located predominantly within an area subject to maintenance dredging by

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:35:of the existing maintenance dredge footprint, and therefore a variation to the licence held by PDT is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:35:envisaged to increase the source area of maintenance dredged material following construction of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:38:Options for the disposal of waste (i.e. the material to be dredged from the approach channel, turning circle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:38:investigated in accordance with the waste hierarchy. Possible alternative options for dredged material have

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:39: • Policy NE-DD-3 – proposals for the disposal of dredged material must demonstrate that they have

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:52: Proposals for the disposal of dredged material must demonstrate that they have been

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:52: assessed against the waste hierarchy. Where there is the need to identify new dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53: The Environment Agency’s response to RCBC during scoping consultation listed three Impacts of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53: • Impacts of dredging on the tidal prism of the estuary, and therefore the extent addressed in Section

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53:Agency (letter • In addition to the initial capital dredge, consideration of the impacts associated impacts associated

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53:dated 14th August with the continued maintenance of the dredged area in future years should be with maintenance

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53:2020) assessed too, in terms of the continued impact to fish, as well as water quality. dredging is made in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53: • it is likely that dredging activity will need to take into account the protection of Section 6.6.4.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53: during critical migration periods. This would entail limiting dredging activity to water quality are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:53:dredging and offshore disposal activities. For this reason, the study area shown in Figure 6.1 has been

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:54:2005 Maintenance dredging baseline document. ABPmer, 2005

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:54: Tees maintenance dredging baseline Royal Haskoning, 2007b Documents the maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:55: 2019a and 2020a) maintenance dredging and disposal for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:55: QEII Berth Development – Environmental information about maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:55: dredging operations required for this

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:57: Maintenance dredging baseline

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:57: Documents the maintenance dredging material regularly

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:57: Tees maintenance dredging baseline removed from the Tees estuary, and the potential

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:57: document. implications of maintenance dredging and disposal for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:57:2009 Royal Haskoning, 2009 dredging regimes and materials arising from above and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:57: possible effects from the proposed dredging operations

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:58:In addition, an analysis of historical data, including dredge and disposal volumes and land reclamation from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:60: predict movement of suspended sediment from the proposed dredging and disposal activities by

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:60: was run for the entire dredging and disposal period under astronomic tidal and daily mean fluvial

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:60:the harbour and marina berths. All of these locations require dredging to maintain a safe navigable depth

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:62:of reaches require maintenance dredging to remove both sands and silts. The volume of sediments dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:62:dredged from the river mouth and navigation approach channels within Tees Bay, with river silts mainly

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:62:dredged from within the berths and river channel further upstream in the Tees estuary.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:62:to allow bypassing of sediment, but observed accumulations upstream, and a 24% reduction in the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:(Newlyn) (7.15m below CD). As a result of training works and deepening by dredging, the current depth at

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:the mouth is about double this natural level. Dredging and training works have occurred since the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:establishment of the first dredged channel of 4.3m from Middlesbrough Docks to the sea after 1853.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:only notable project undertaken since that time has been the dredging and re-strengthening of No.1 Quay

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:sediments) which is offset by maintenance dredging and disposal at offshore licenced disposal site Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:PDT is required by the Tees and Hartlepool Port Authority Act 1966 to publish dredge depths; the published

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:Admiralty Charts show the maximum licensed depths for the channel and berths. A summary of the dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:14.1m below CD were originally dredged to a deeper depth.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:access. The berth pocket within Tees Dock has been dredged to a depth of 14.5m below CD, with the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:63:general dock area dredged to 10.9m below CD.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:84:induced currents, vessel induced forces and re-suspension by dredging operations. These last two were

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:85: • Marine input: Comparison of the above figures with the present knowledge of the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:85:Dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:85:As part of this responsibility, PDT must maintain the advertised dredge depths within the defined areas

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:85:dredging in the thirteen reaches of the river shown in Figure 6.29 (as well as in berths within the Tees and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:85:within Tees Bay). Maintenance dredging practices have remained unchanged since 2005.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:85: Figure 6.29 Maintenance dredging reaches within the River Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:Most dredging within the Tees occurs in the approach channel and low-middle estuary in order to maintain

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:access to berth pockets and impounded docks. TSHDs are currently used for the majority of the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:dredgers have active bottom door offloading systems.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:PDT also operates its own 11m plough to supplement ongoing suction dredging operations through the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:removal of isolated high spots on the riverbed, primarily in frontages or confined areas. Plough dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:dredgings requiring disposal to sea.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:A summary of the maintenance dredged volumes (m³) by each reach from 2001 to 2019 is provided in Table

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:6.15 and shown in Figure 6.30. Data on dredging was obtained from PDT and extends the time series

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:originally presented in Royal Haskoning (2008) from 2001 to 2019. No dredging has been required within

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:Reach 0 during the reporting period. Note that these data also include maintenance dredging volumes from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86: Volume of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:Figure 6.30 Summary of volumes (m3) dredged and deposited offshore during the period 2001 to 2019

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:The total volume of maintenance dredged material has decreased below the average annual volume for the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:86:Over the 19-year period, the average volume maintenance dredged from the Tees reaches is 740,266m3,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:87:Table 6.15 Summary of the total volumes of dredged material disposal (m3) from 2001 to 2019

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:89:Maintenance dredge material (between 2001 and 2018) comprised around 180,000m3 of mud, mostly found

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:89:A review of the dredged sediment quality data is presented in Section 7.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:89:general, Tees Bay A (TY160) is used for the disposal of maintenance dredge arisings while Tees Bay C

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:89:(TY150) is used for capital dredge arisings. Tees Bay B (TY110) and Tees Bay Foreshore (TY170) are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:89: dredged material. Some 1999, associated with the construction of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:89: 54 42.600N 00 58.600W maintenance dredging has been downstream Ro-Ro berths. Typical annual

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:90:Figure 6.31 Location of offshore maintenance and capital dredge disposal sites

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:90:6.5.2 Capital dredging and offshore disposal of dredged sediments

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:90:Capital dredging is required to: (i) create a berth pocket adjacent to the new quay; (ii) deepen the river

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:pocket, creating a finished depth of 13.6m below CD. Dredging of the channel and berthing pocket will yield

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:In total, approximately 1,800,000m3 of material will be dredged from the areas described over an

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:as ‘soft’ material) and Mercia Mudstone (classed as ‘hard’ material). Dredging will be undertaken using a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:Each year, between 25 – 30 million tonnes (wet weight) of dredged marine sediments from ports, harbours

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:dredged from the proposed scheme will be taken to the Tees Bay C licensed offshore disposal site, some

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:The capital dredging within the river, using TSHD and BHD, and the disposal activities at the licensed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:modelling of the sediment dispersion associated with the dredging and disposal activities, as well as the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:and run for the entire four month duration covering all proposed dredging and disposal activities. Wave

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:disturbance effects have been included. The dredging methods, schedule and sediment release settings

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:movement of dredgers and transport barges (including dredging, sailing, disposal and downtime) such that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:sediment releases have been made near continuously throughout the dredging operations (except for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:allowed periods of downtime) from along the centre line of the dredged areas, running along the axis of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:The overall dredging and disposal operations may be considered as four stages in the following sequence:

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91: • Stage 1: BHD working to dredge the upper soft material (above -5m CD) in the berthing pocket and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91: • Stage 2: BHD and TSHD working in parallel to dredge the middle soft material (below -5m CD) in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91: • Stage 3: BHD working to dredge the bottom hard material in the berthing pocket and river channel

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91: • Stage 4: BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:91:Results from the sediment dispersion modelling are discussed in turn for the dredging and disposal activities.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92: throughout the entire four-month period covered by the dredging and disposal simulations, but only

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92: extents of enhancement in SSC from any stage of the dredging or disposal operations during the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92: relevant stage of the dredging programme. It is important to note that this type of figure does not

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92: become affected by a plume at some point during the dredging or disposal activities (in some areas

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:Dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:end of the dredging transect to the north-eastern end.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:Peak concentrations from dredging are always local to the point of disturbance from dredging at the riverbed,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:on timing of release with respect to the phase of the tide and location of dredging within the berthing pocket

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:release from the south-western corner of the dredging transect during the ebb phase (Plot A) and flood

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:phase (Plot D) of the tide when the release is towards the north-eastern end of the dredging transect.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:When the dredger is at the south-western end of the transect, the maximum spatial extent of the plume on

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:92:Middlesbrough Dock. When the dredger is at the north-eastern end of the transect, the extent of the plume

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:93:Figure 6.32 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:93:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:94:Figure 6.33 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:94:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:95:Figure 6.34 (Plot C) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:95:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:96:Figure 6.35 (Plot D) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:96:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:96:In order to determine a maximum ‘zone of influence’ from Stage 1 of the dredging activities, the maximum

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:96:values of enhancement in SSC from any phase of the dredging operations during Stage 1 have been plotted

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:96:release points along the dredging transect at the proposed scheme site. Further upstream and downstream

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:96:of the areas directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a short distance

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:96:from the point of dredging, and at the peripheries below 20mg/l) before merging with low background

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:97:Figure 6.36 Maximum enhanced SSCs arising from dredging activities during Stage 1 of the capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:97:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:97:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:97:time, moving from the south-western end of each of two parallel dredging transects to the north-eastern

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:97:from the two dredger types, as show in Figures 6.37 and 6.38 (Plot A and Plot B show releases from the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:97:south-western and north-eastern ends of the two parallel dredging transects respectively). However, the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:98:Figure 6.37 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 2 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:98:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:Figure 6.38 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 2 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:The maximum ‘zone of influence’ from Stage 2 of the dredging activities is shown in Figure 6.39 (please

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:note the earlier caution in interpreting this type of figure). This shows that during Stage 2 of the dredging,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:becomes wider; and (iii) at times two plumes are created by the in-parallel dredging activities. Despite these

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:release points along the dredging transects at the proposed scheme site. Further upstream and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:downstream of the areas directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:99:short distance from the point of dredging, and at the peripheries below 20mg/l) before merging with low

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:Figure 6.2 Maximum enhanced SSCs arising from dredging activities during Stage 2 of the capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:end of the dredging transect to the north-eastern end.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:of the dredging transect during the ebb phase (Plot A) and flood phase (Plot B) of the tide. Similar results

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:is towards the north-eastern end of the dredging transect. It can be seen that the maximum SSC values

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:and the spatial extents of the plume arising from Stage 3 of the dredging are much lower than those

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:100:of dredging is notably lower.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:101:Figure 6.40 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:101:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:102:Figure 6.41 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:102:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:103:Figure 6.42 (Plot C) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:103:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:104:Figure 6.43 (Plot D) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:104:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:104:The maximum ‘zone of influence’ from Stage 3 of the dredging activities is shown in Figure 6.44 (please

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:104:note the earlier caution in interpreting this type of figure). This shows that during Stage 3 of the dredging,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:104:during both Stages 1 and 2 of the dredging (note the slight plume shown in the mid channel is a remnant of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:104:the Stage 2 dredging, which has not fully dissipated before Stage 3 commences). During Stage 3, the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:105:Figure 6.44 Maximum enhanced SSCs arising from dredging activities during Stage 3 of the capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:105:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:105:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:105:end of each of two parallel dredging transects to the north-eastern end.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:105:Peak concentrations from dredging are always local to the point of disturbance from dredging at the riverbed,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:105:times in the dredging cycle, SSC values can become enhanced by typically 10 to 20mg/l between the point

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:106:Figure 6.45 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 4 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:106:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:107:Figure 6.46 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 4 of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:107:capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:107:The maximum ‘zone of influence’ from Stage 4 of the dredging activities is shown in Figure 6.47 (please

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:107:note the earlier caution in interpreting this type of figure). This shows that during Stage 4 of the dredging,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:107:stages, the maximum SSC concentrations remain local to the point of dredging within the turning circle (up

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:107:to a few hundred mg/l). Further upstream and downstream of the areas directly dredged, the SSC

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:107:enhancement drops markedly (typically below 50mg/l a short distance from the point of dredging, and at the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:108:Figure 6.47 Maximum enhanced SSCs arising from dredging activities during Stage 4 of the capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:108:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:108:The sediment plumes that arise from the four stages of the dredging could potentially affect areas of riverbed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:108:of influence’ from Stages 1 - 4 inclusive of the dredging activities has been plotted in Figure 6.48 for the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:108:that during the predicted four months of dredging, all individual or coalesced plume effects are confined to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:108:Furthermore, all plumes associated with dredging of the berthing pocket and river channel in the vicinity of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:108:whilst all plumes associated with dredging of the turning circle are confined to the left bank (north of centre

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:109:Figure 6.3 Maximum enhanced SSCs (near-bed layer) arising from dredging activities during Stages 1 -

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:109:4 inclusive of the capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:110:Figure 6.49 Maximum enhanced SSCs (near-surface layer) arising from dredging activities during Stages

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:110:1 - 4 inclusive of the capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:110:Sediment suspended within the dredging plumes will fall to the riverbed, either soon after disturbance or

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:110:spillage occurring during the dredging operation (for coarser-grained sediment fractions), or at a point in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:110:by this deposition. It can be seen that much of the sediment falls to the bed within the dredged areas (from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:110:where it will be re-dredged to achieve the necessary bed depths), whilst the deposition that occurs in other

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:111:Figure 6.50 Maximum riverbed thickness change due to sediment deposition arising from dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:111:activities during Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:111: would be affected by the zone of influence of the dredging operations].

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:appreciable extent, with peak enhancements of between 15 and 85 mg/l during Stage 2 of the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:programme (Figure 6.52). Whilst Stage 1 of the dredging also causes some enhancement in SSC at point

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:elevations in SSC drop rapidly after each dredging plume has dispersed, and return to baseline levels at

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:points of downtime or between successive dredging stages. There are no significant effects noted at the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:water quality sampling points during Stage 3 of the dredging and only negligible effects for a short duration

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:a very low value (6mm) throughout the entire dredging programme (Figure 6.53) and in reality some of this

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:material will become re-suspended by tidal currents or dredged during maintenance campaigns of the river

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:At the mudflat monitoring points, it is only during Stage 4 of the dredging that any discernible effects are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:At the navigation monitoring points on the north bank, it is only during Stage 4 of the dredging that any

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:At the navigation monitoring points on the south bank, it is throughout Stages 1 and 2 of the dredging that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:112:Stages 3 and 4 of the dredging, only negligible effects are noted, equivalent to variations within the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:113:re-suspended by tidal currents or will be removed during maintenance dredging campaigns of the river

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:118:is licensed for the disposal of dredged sediment and is routinely monitored as part of a national programme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:118:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:118:The above cycle is repeated throughout all disposal events associated with Stage 1 of the dredging,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:119:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:120:dredging, the following descriptions focus on where particular aspects of subsequent stages differ from the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:120:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:120:TSHD. The pattern of dispersion following discharge of the BHD-dredged material is as described for Stage

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:120:cessation of TSHD discharge) the subsequent BHD-dredged material disposal is commenced at a common

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:121:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:122:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:123:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:124:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:125:dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:126:dredging programme has been plotted in Figure 6.64 for the near-bed layer of the water column (please

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:127:inclusive of the capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:128:event during Stage 1 of the capital dredging programme – local scale

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:129:event during Stage 1 of the capital dredging programme – wider scale

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:The river dredging and offshore disposal activities will both cause plumes of sediment to form close to the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:During dredging, there will be a release of sediment particles from the deliberate physical disturbance to the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:riverbed and, more significantly, from overflow when dredged material is loaded into the dredger’s hopper

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:(for TSHD) or the transport barge (for BHD). Such releases will be ongoing through each dredging cycle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:until the dredging activity ceases due to downtime (e.g. adverse weather, vessel maintenance) or at

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:scheduled breaks between stages of dredging activity. During offshore disposal, a single hopper load will

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:Once a plume is generated, the highest SSC values will be recorded at the point of river dredging or offshore

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:131:During some stages of the dredging and disposal activities, most notably when both TSHD and BHD are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:The plume effects arising from the river dredging are characterised by a short-lived localised increase in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:SSC by a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial extent

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:and reduction in concentration over following hours. Since the dredging is a near-continuous operation, the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:extents during the four different stages. During Stages 1-3 the dredging-related plume effects will be largely

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:Dock and Tees Dock. During Stage 4 the dredging-related plume effects will be largely confined to the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:and the Oil Terminal. Other than within the dredged areas, sediment deposition on the riverbed will be of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:occurs in the river channel or at jetties, it will subsequently be dredged as part of ongoing maintenance

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:dredging regimes, whilst material deposited back into the newly dredged areas will be re-dredged during

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:132:Overall, the changes in SSC and sediment deposition arising from the river dredging and offshore disposal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:133:dredging to the Tees Dock turning circle and approach channel and to create a berth pocket.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:140: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:140: dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:140: deposition will require periodic dredging to maintain the design depths.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:that the increase in mean tidal prism as a result of the new quay’s set-back alignment and dredging of part

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:6.6.4 Maintenance dredging and offshore disposal of dredged sediments

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:In order to provide an estimate of the present annual average maintenance dredging undertaken in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:the proposed new quay), it can be assumed that the affected area covers approximately half of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:reach 6 and approximately one-third of dredging reach 5 (these ‘dredging reaches’ are shown in the earlier

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:Between 2001 and 2019 inclusive, the average annual maintenance dredging in reach 5 was 3,585m3 and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:maintenance dredging is evenly located through each dredging reach so that the spatial scaling described

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:maintenance dredging is likely to be due to the low levels of suspended sediment measured in this reach of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:the river. By far the greatest contributions to the overall annual maintenance dredging total come from close

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:to the barrage in dredging reaches 1-3 inclusive or towards the estuary mouth in dredging reaches 8-11

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:inclusive. All non-contaminated material from maintenance dredging is usually taken to the Tees Bay A

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:a requirement for more material to become from this local reach dredged annually. Recognising this, a 10%

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:increase in annual maintenance dredging requirement may be a reasonable assumption recogising the low

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:baseline SSCs in this reach. Even under this scenario, the maintenance dredging from this reach local to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:the new quay will still yield a very low overall contribution to the net annual maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:requirements from the estuary as a whole. Therefore the potential increase in maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:141:dredging and offshore disposal regimes.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: Mitigation measures with regard to dredging may be required to manage

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: reductions. Such measures would entail limiting dredging to certain

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: proposed dredge on water and sediment quality are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: Dredging has the potential to cause negative impacts on the water

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: with the proposed dredge are detailed in Section 9

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: The proposed dredging plant has been selected

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: encountered during the dredge, as well as the plant

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: The applicant should consider the (dredging) methodology to be used,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: which has been used for previous capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: the disposal of dredged material and the timing of works.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:143: to be used, disposal of dredged material and timing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144: As detailed in Section 3, the dredged material is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144: dredged material previously and it can accept the total proposed amount

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144: dispose of capital dredged sediment. Impacts

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144: of dredged material.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144: Due to the quantity of material proposed to be dredged, it is advised that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144: of dredged material are presented.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144:are predicted to occur (e.g. sediment plumes generated during capital dredging and effects on tidal currents

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144: • Cefas Guideline Action Levels for the disposal of dredged material (Cefas, 2000); and,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:144:The Action Levels are used as part of a ‘weight of evidence’ approach to assessing the suitability of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:146:losses from dredging equipment and concentrations of contaminants within the sediments to be dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:147:impacts associated with the proposed offshore disposal of dredged material are considered in Section 26,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:147:proposed new quay at South Bank. There is however a degree of overlap between the dredge footprint for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:148: D2 Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:152:that found in 2006. The MMO has recently confirmed that the sediment to be dredged from the NGCT

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:153:13 surface samples from within and adjacent to the proposed dredge footprint for the NGCT scheme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:154: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:156:across the proposed dredge footprint. Samples will be recovered at the surface and at 1m intervals at each

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:156:of the 25 positions to the proposed dredge depth, or until geological mudstone is encountered beforehand

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:156:undertake maintenance dredging of the river to maintain the advertised dredge depths, with mid-licence

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:156:dredge disposal licence (to ensure that the maintenance dredged material remains suitable for offshore

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:7.5.1 Dispersion and redistribution of sediment during capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:Capital dredging would result in the creation of sediment plumes. To consider the potential extent and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:model MIKE3-HD and run for the four-month period over which dredging is likely to occur. The simulations

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:also accounted for the movement of dredgers and transport barges (including dredging, sailing, disposal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:and downtime) and four ‘stages’ of dredging (which would occur in sequence) were modelled to allow for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157: • Stage 1: BHD working to dredge the upper soft material in the berthing pocket and river channel.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157: • Stage 2: BHD and TSHD working in parallel to dredge the middle soft material in the berthing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157: • Stage 3: BHD working to dredge the bottom hard material in the berthing pocket and river

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157: • Stage 4: BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:the figure that the largest concentrations are local to the dredger and typically reach around 100 to 200mg/l.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:dredgers. At some points in the cycle, areas of these initially separate plumes combine as they move

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:The maximum concentrations and the spatial extents of the plume arising from Stage 3 of the dredging are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:and the production rate of dredging is notably lower. Figure 7.5 shows an example plume during Stage 3

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:dredging. Plots for the different tidal conditions are presented in Section 6.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:157:Again, peak concentrations close to the dredger are shown in the plume modelling output. On the ebb

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:158:Figure 7. 3 Plume of suspended sediment concentrations arising from dredging activities during Stage 2

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:158:(release from south-western ends of the two parallel dredging transects)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:159:Figure 7. 4 Plume arising from dredging activities during Stage 1 of the capital dredge (release from the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:159:south-western corner of the dredging transect during the ebb phase)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:160:Figure 7. 5 Plume of suspended sediment concentrations arising from dredging activities during Stage

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:160:3 (release from the south-western corner of the dredging transect during the ebb phase)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:161:Figure 7.6 Plume of enhanced suspended sediment concentrations arising from dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:Stage 2 of the proposed dredging schedule (when the BHD and TSHD would be working in parallel to dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:the proposed capital dredging works either do not cause elevations at the water quality monitoring points or

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:will be exceedances over baseline conditions throughout Stage 2 of the dredging schedule (as noted above,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:a period of approximately four weeks within the approximately four month dredging programme). The effect

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:7.5.2 Effects on water quality physical parameters during capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:The relatively limited nature of the plume extents predicted for the proposed capital dredging indicates that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:Additionally, a significant component of the dredged material is likely to be geological sediment, which is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:162:only for the duration of the dredge (approximately four months) and reversible. As a result, the magnitude

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:163:7.5.3 Remobilisation of contamination during capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:163:undertaken to inform whether maintenance dredging within a dock in Dover Harbour could give rise to EQS

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:163:estimates of sediment losses from dredging equipment and concentrations of contaminants within the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:163:sediments to be dredged to provide an indication of the amount of contamination that could be released into

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:164:Table 7.9 Summary of calculations undertaken for potential water column effects within the Tees estuary at low water (based on removal of 15,000m3 of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:164: Calculated loss of sediment derived using indicative values for the mass of sediment resuspended per m 3 of dredged material in CIRIA guidance (John et al., 1999) in kg/m3. Worst case S-Factor for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:164: MAC EQS Maximum Allowable Concentration. Used given the fact that dredging is not continuous as opposed to annual average EQS which averages samples collected over a year.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:166: • A relatively large proportion of the total volume of dredged material is anticipated to comprise

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:166: the dredge area.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:166: • The daily dredge volume is likely to be less than that accounted for due to stoppages associated

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:166: • The calculation is based on loss from a TSHD whereas a considerable component of the dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:166: will be undertaken with a backhoe dredger which has a lower production rate and therefore

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:166:weeks during Stage 2 of the proposed dredging programme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:7.6.1 Dispersion and redistribution of sediment during maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:increase in deposition rates and hence a requirement for more material to be dredged from this local reach

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:annually (see Section 6 for more information). A 10% increase in annual maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:However, the majority of material removed during the weekly maintenance dredging campaigns undertaken

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:net annual maintenance dredging requirement from the estuary as a whole. Therefore the potential increase

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:in maintenance dredging requirement is not expected to be significant and would be managed within existing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:maintenance dredging and offshore disposal regimes.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:168:dredging operations is predicted to be very low. Given the sensitivity of the Tees estuary is considered to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:191: dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:191: • Impacts on marine ecology from increased suspended sediment during capital dredging and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:191: smothering as a result of dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:191: • Impacts on marine communities due to changes in the maintenance dredge regime.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:191:from invasive species, through activities such as maintenance dredging, shipping ballast water exchange,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:194: dredging, can have a large effect upon habitats such as intertidal muds

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:195:The majority of the proposed dredge footprint is located within the subtidal zone. However, given the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:195:proposals to locate the quay in the riverbank (i.e. on existing land), dredging and excavation in front of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:199: would be indirectly affected (e.g. through sediment deposition during capital dredging).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:199: a 5mm cod end, with the trawls evenly distributed across the dredge area. Fish, shrimp and other

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:199:between the dredge footprint for the two schemes, specifically at Tees Dock turning circle. Results from the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:200: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:206:PDT would continue to undertake maintenance dredging of the river to maintain the advertised dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:9.5.1 Direct loss of habitat due to demolition of existing structures and dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:9.5.1.2 Capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:The proposed capital dredging would result in direct impacts to existing areas of intertidal and subtidal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:habitat that lie within the proposed dredge footprint, which are certain to occur.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:It is recognised that the proposed dredge footprint is within close proximity to the North Tees mudflat, which

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:the assumed side slopes to be created as part of the proposed dredge, no direct or indirect impact to this

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:The impact on the subtidal from the proposed dredging activities within the existing channel and part of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:is expected to recover following the dredging activities being carried out. However, in the short term, the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:207:benthic community would be removed from areas where dredging will be carried out.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:208:However, the capital dredging that will take place to create the berth pocket, and the rock blanket that will

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:208:wall during operation is estimated to be 5ha. The area of subtidal to be disturbed by the dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:208:dredging. As mentioned in Section 9.4.4, as there was no clear dominance of a single species, information

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:208:dredging, recruiting from the surrounding population within the year (Diaz-Castaneda et al., 1989), although

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:208:disturbance/substratum loss (i.e. from maintenance dredging). Based on these, MarLIN reports a medium

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:208:The benthic community is expected to be somewhat sensitive to physical habitat loss from the dredging of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:209:overall sensitivity of high has been assigned on a conservative basis. The dredging activities will result in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:209:dredging activities, the magnitude of this impact on the benthic community and habitat is considered to be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:209:as a result of habitat loss caused by dredging would be of moderate adverse significance.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:209:the Tees estuary which could be directly impacted by the proposed dredging activity (MarLIN, 2020).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:209:Some of the mudflat that will be lost as a result of the proposed dredge / excavation is classified as Priority

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:209:nature of the habitats within the Tees. Although the loss of the intertidal due to the dredge / excavation

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:It is recognised that the proposed dredge is a key component of the proposed scheme, and as such the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:dredging has been minimised as far as possible, within the constraint of delivering a development that meets

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:9.5.2 Effects of increased suspended sediment concentrations during dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:Dredging of approximately 1,800,000m3 of material will be required for the proposed scheme, over half of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:which will be for the creation of the berth pocket. Approximately 155,000m3 of this will be dredging of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:intertidal (defined as between Mean Low Water and Mean High Water). The proposed dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:as a result of dredging (at a level exceeding the respective EQSs of relevant contaminants) (Section 7.5.3).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:resuspended sediment which does not contain elevations beyond Action Level 2). The dredged sediment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:In general, sediment plumes induced by dredging are considered to pose only a limited risk to water quality

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:accommodate an increased oxygen demand, particularly where dredging takes place in open sea or

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:dredging periods. The sediment plume generated by dredging would likely be dispersed by tidal currents

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:210:away from the dredging location. The dispersion would either be upstream on the flood tide or downstream

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:For both types of dredger (backhoe and TSHD), peak suspended solids concentrations are predicted in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:immediate vicinity of the dredger. Sediment plume modelling predicts different plume extents and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:suspended sediment concentrations depending on the stage of dredging (as described in Section 6). In all

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:cases, the sediment plume is predicted to be very narrow within the river, with the phase of dredging with

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:the highest concentrations predicted to be 100-200 mg/L within the vicinity of the dredger, reducing to 10-

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:All plumes associated with different stages of dredging in the vicinity of the proposed new quay are confined

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:to the southern bank of the river, whilst all plumes associated with dredging of the turning circle are confined

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:(Figure 6.51), it was only during Stage 4 of the dredging (related to dredging of the turning circle) that any

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:211:the proposed dredge is considered to be of low sensitivity to increases in suspended sediment.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:The dominant sediment biotope present within the dredge footprint is EUNIS biotope A5.323, Nephtys

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:9.5.3 Effects of smothering following dredging on marine species and habitats

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:During the capital dredging a proportion of the material that is dredged would be disturbed and re-suspended

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:material during dredging is described in Sections 6 and 7.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:The proposed dredging footprint of the scheme is considered to be relatively limited; restricted to the direct

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:mentioned in Section 9.5.1.2, the estimated area to be disturbed directly as a result of the dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:Some of the sediment that is suspended as a result of the dredging activities will be deposited to the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:riverbed, either soon after disturbance occurring during the dredging operation (for coarser-grained

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:212:on the riverbed within the dredging footprint, whilst the deposition that occurs in other parts of the river is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:213:Any smothering caused by the proposed dredging activities is not predicted to result in the deposition of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:213:sediments at Seal Sands, Bran Sands or North Gare Sands, due to the limited footprint of dredging activities,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:213:potentially be affected. It is predicted that the proposed dredging would not give rise to the loss of a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:214:of ship wash and maintenance dredging where required) due to the shipping activities during operation and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:level rise. In the main channel the deposition will require periodic dredging to maintain the design depths.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:Changes to the cross-sectional area of an estuary due to capital dredging creation of a new subtidal area

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:9.6.3 Change in maintenance dredging regime affecting marine communities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:dredging will not change. The areas that are being proposed to be maintenance dredged for the scheme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:are all areas that are currently already being dredged regularly; there will be no change in the extent of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:seabed affected by maintenance dredging, with the exception of the newly created berthing pocket.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:continuously be disturbed by shipping activity and maintenance dredging and, therefore, this will prevent

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:215:communities as a result of the maintenance dredging requirement arising from the proposed scheme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:217:maintenance dredging, movement of vessels (including vessels associated with the demolition of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:217:mammals from the offshore disposal of dredged sediments are assessed in Section 26.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:220:estimate the noise levels likely to arise during the dredging works at the proposed scheme. More information

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:220:on the methodology used in the underwater noise modelling for the dredging works in Section 10.5.1.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:225:point of the proposed dredge footprint. The 2019 surveys occurred for a period of 47 days throughout the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:225:usage is relatively low in and around the proposed dredge footprint plus 1km buffer, with a grey seal density

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:225:dredging (Section 10.5 and 10.6). The density estimate of 0.014/km2 has been used to determine the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:227:at the Farne Islands (117km from proposed dredge area), Donna Nook in the Humber Estuary (173km from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:227:proposed dredge area), the Wash (233km from proposed dredge area) and at Blakeney Point (244km from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:227:proposed dredge area). With smaller haul-out sites located at Ravenscar (57km from proposed dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:227:area), Filey Brigg (81km from proposed dredge area) and at Seal Sands (3km from the proposed dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:228:Seals Sands is located approximately 3km from the proposed dredge footprint at its closest point. The Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:228:usage is relatively low in and around the proposed dredge footprint plus a 1km buffer, with a harbour seal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:230: 0.00008/km2 for dredge footprint plus 1km

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:230: 0.0003/km2 for dredge footprint plus 1km

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:230:disposal site. The winter area of the Southern North Sea SAC is located 127km from the proposed dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:230:The proposed dredge area is located within the Teesmouth and Cleveland Coast SSSI. Breeding harbour

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:230:Pupping tends to occur in June and July on the intertidal mud of Seal Sands (3km from the proposed dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:232:through the noise exposure event (dredging activity). This is a highly conservative approach, and likely has

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:232:the modelled noise levels for dredging works fell below 130 dB re 1µPa, they were of the order of ambient

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233:publicly available (Subacoustech, 2018) has been used to assess the impact ranges of dredging works

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233: • Backhoe dredger with an estimated sound source of 165.0 dB re 1 µPa SPLRMS @ 1m.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233:proposed dredging in the Tees Dock turning circle to the coast).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233:source levels predicted for the dredging activities, any marine mammal would have to remain in close

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233:a result of underwater noise during dredging activities (Table 10.9) has been assessed based on the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233:maximum number of animals that could be present in the maximum impact areas for dredging (Table 10.8).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233:berth pocket, would be the same or less than those modelled for dredging activities.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233:dredging activities based on Hartlepool approach channel underwater noise modelling (Subacoustech, 2018)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233: et al., 2019) dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:233: SEL during dredging 0.003km2

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:234:PTS as a result of underwater noise associated with dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:234: dredging 0.00000024 grey seal Negligible / very low magnitude

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:234:The magnitude of the potential impact of PTS as a result of dredging noise is negligible / very low for harbour

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:234:The potential risk of any PTS that could result from underwater noise during the dredging works or other

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:234:activities would be limited to the immediate vicinity of the dredging works while they are taking place only.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:234:dredging works.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:234: dredging very low

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:The dredging process emits continuous, broadband sound into the marine environment. SPLs can vary

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:widely, dependent on the dredger type, operational stage, or environmental conditions (e.g. sediment type,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:factors will also affect the propagation of sound from dredging activities and along with ambient sound

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:Based on reviews of published sources of underwater noise during dredging activities (e.g. Thomsen et al.,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:mammals may be exposed to during dredging activities are usually below auditory injury thresholds or PTS

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:in marine mammals as a result of dredging activity is highly unlikely.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:area during dredging activities. Marine mammals may exhibit varying behavioural reactions intensities as a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:235:in the berth pocket, would be the same or less than those modelled for dredging activities.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:case location (closest point of the proposed dredging in the Tees Dock turning circle to the coast).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:display a fleeing response, as a result of underwater noise during dredging activities (Table 10.12) has been

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:(Table 10.11) for proposed dredging activities.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:dredging activities based on Hartlepool approach channel underwater noise modelling (Subacoustech, 2018)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236: et al., 2019) dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236: dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:result of underwater noise associated with proposed dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236: during dredging (0.000000004% of the NE England MU) (temporary effect with less than 1% of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:The magnitude of the potential impact of TTS and fleeing response as a result of dredging noise, is negligible

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:The potential risk of any TTS or fleeing response that could result from underwater noise during the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:236:works would be limited to the immediate vicinity of the dredging works while they are taking place only. The

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:237:dredging works.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:237: dredging very low

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:238:vessels during the proposed dredging has been assessed based on a very precautionary worst-case of up

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:238:risk (Table 10.14). The proposed dredge footprint is approximately 0.38km2 in size (based on the dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:238:be present in the dredge footprint that could be at potential increased vessel collision risk

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:238: dredging (5% of Negligible / very low magnitude

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:238: animals in dredge 0.000002 grey seal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:238:potential increase in collision risk with vessels during dredging has been assessed as negligible (not

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:239:Table 10.15 Assessment of impact significance for increased collision risk from vessels during dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:239: dredging very low

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:240:the proposed dredge footprint. Due to the distance of the haul-out site from the proposed scheme, there is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:240:no potential for the dredge vessels to cause any disturbance to seals hauled out at the site, including the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:240:dredged material offshore, would maintain the same distance from the sandbanks as vessels currently

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:240:The proposed dredging and other underwater activities (namely demolition and removal of existing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:240:relied upon solely. Therefore, any increases in suspended sediments during dredging or other activities will

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:240:Potential impacts on fish species during dredging and other underwater activities can result from the physical

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:241:Therefore, there sensitivity to any changes in prey availability as a result of the proposed dredging is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:241:prey availability during the proposed dredging has been based on the dredge footprint of 0.38km2 and the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:241:be present in the dredge area that could be impacted by any changes to prey availability

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:241: dredge area Negligible / very low magnitude

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:241: dredge area Grey seal Low

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242: • Underwater noise during dredging;

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242: • Vessel interactions (collision risk) during dredging and operational use of the quay;

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242: • Disturbance at seal haul-out sites during dredging;

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242: • Changes in water quality during dredging; and,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242: • Changes to prey resource during dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:It is important to note that there will be no changes to the overall maintenance dredging strategy currently

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:undertaken by PDT during operation, with maintenance dredging currently undertaken virtually daily within

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:dredging during the operational phase of the proposed scheme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:10.6.1 Underwater noise during maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:Underwater noise predicted to be generated from maintenance dredging is considered to be the same or

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:less as the underwater noise predicted to occur from the capital dredging activities. Therefore, the impact

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:of maintenance dredging will be the same or less as that assessed for the construction phase (see Section

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:the maximum number of animals that could be impacted as a result of underwater noise during the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:10.6.2 Vessel interactions (collision risk) during maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:The potential for any increased collision risk during the maintenance dredging operations is considered to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:maintenance dredging will be the same or less as that assessed for the construction phase (see Section

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:number of animals that could be at increased collision risk during the maintenance dredging. The impact

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:significance for harbour porpoise, minke whale, grey seal and harbour seal during maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:dredging activities. The residual impact would be of negligible significance.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:10.6.3 Disturbance at seal haul-out sites during maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:The potential for any disturbance at seal haul-out sites during maintenance dredging is considered to be the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:same or less as that assessed for the dredging activities during the construction phase, and therefore the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:242:impact significance for any disturbance at seal haul-out sites during maintenance dredging has been

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:10.6.4 Changes in water quality during maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:The potential impact of any changes to water quality during maintenance dredging is considered to be the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:same or less as that assessed for the dredging activities during the construction phase, and therefore the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:impact significance for any changes to water quality during maintenance dredging has been assessed as

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:10.6.5 Changes to prey resource during maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:The potential impact of any changes to prey resources during maintenance dredging is considered to be the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:same or less as that assessed for the dredging activities during the construction phase, and therefore the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:243:impact significance for any changes to prey resources during maintenance dredging has been assessed as

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:266:vessels or disturbed by underwater noise or dredging activities. The vessels used in construction activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:271: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:275: 7 P roposedDredg

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:277: P roposedDredg

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:278: P roposedDredg

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:284: the proposed channel dredge, berth pocket and wharf demolition footprint and includes the North

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:295:12.5.1 Loss of supporting habitat due to dredging / excavation and demolition

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:295:The dredging footprint in the main channel does not overlap with the intertidal habitat available at North

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:supporting habitat within the footprint of the proposed dredging and excavation represents just 0.3% of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:As discussed further in Section 13.5.1, dredging and excavation activities resulting in an increase in SSC

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:The area that may be affected by increases in SSC during dredging has been described in Section 6.5.2.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:In summary, the largest sediment plumes are likely to arise during Stage 2 of the dredging (i.e. BHD and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:TSHD working in parallel to dredge in the berth pocket and the main channel). During this stage, the zone

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:of influence extends approximately 750m downstream and 2,500m upstream of the dredged area (see

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:Stage 2 dredging, presented in Section 6.5.2 indicates that significant SSC excesses from the capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:dredging are confined to the dredging transects and are predicted to decrease significantly with increased

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:296:distance from the dredging vessel, both laterally and along the line of the vessel, with plumes diminishing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:297:the dredging campaign may overlap with part of the common tern breeding period.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:297:affected by dredging, as detailed in Section 12.3.2). The peak count in 2020 was a decrease on previous

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:297:important for foraging and therefore terns may be sensitive to the turbidity caused by dredging operations

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:297:species (e.g. Sandwich tern). Furthermore, the occurrence of frequent (almost daily) maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:297:As described above, the zone of influence of the Stage 2 dredge presented in Figure 6.39 significantly

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:297:levels are only predicted to exceed baseline levels during the dredging campaign (a period of approximately

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:297:2 dredging will only comprise approximately one month of the approximately five month dredging campaign,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298:and the other stages of the dredge campaign would result in a smaller plume than that described for Stage

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298: therefore be undertaken in long strips along the axis of the estuary rather than dredging across

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298: the width of the river. This is to reduce both the extent and impact of the dredged plume, as any

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298: channel. This approach has been proposed for other capital dredge operations in the Tees, such

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298:The deposition of fine sediment within intertidal areas due to capital dredging has the potential to affect

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298:dredging, is presented in Section 6.5.2. Fine sediment will be deposited within minutes or hours if carried

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298:in suspension from the point of release. Most falls within the dredged areas, whilst deposition elsewhere is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:298:of the effects of capital dredging and therefore a negligible impact is predicted on the waterbirds relying on

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:299:from dredging and demolition works, represented as the day / night LAeq) at most receptor locations will be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:302:of construction personnel, plant / machinery, dredgers / other vessels and construction lighting. In particular,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:302:during dredging of the main channel, dredging vessels will operate in close proximity to the North Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:302:Mudflat and Vopak Foreshore. Dredging is due to continue for a period of approximately five months. This

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:302:end of the proposed scheme footprint are within 300m of the mudflat (not including dredging activities, which

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:During dredging of the main channel and the turning circle, dredging vessels will operate in close proximity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:to the North Tees Mudflat and Vopak Foreshore. Most notably, sections of the channel dredge footprint run

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:adjacent to the North Tees Mudflat (this is illustrated in Figure 11.2), therefore the presence of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:maintenance dredging vessels which operate on an almost daily basis within the channel, including within

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:that there will be further habituation over the dredging period and any effects would lessen through the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:Disturbances to birds at Vopak Foreshore would be limited to the very short-term dredging within the Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:limited to Stages 1 to 3 (a period of approximately 4.5 months), but only during times when the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:transect runs close to the mudflat (for example, when dredging the southern half of the river it is unlikely to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:and the mudflat itself extends over a kilometre upstream of the dredge footprint. As such, any displacement

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:Given the above, it is anticipated that visual disturbances from dredging operations would have a minor

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:The mitigation measures outlined in Section 12.5.2 would ensure that dredging vessels only operate along

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:the axis of the river, rather than across it, thus minimising the frequency of occasions whereby the dredger

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:303:operates adjacent to the North Tees Mudflat. There is no practical way of avoiding dredging activities since

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:304:as a result of dredging activities and residual noise from land-based piling works. The assessment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:304:concludes that there may be a minor adverse effect as a result of the dredging leading to fish moving away

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:307:The potential impacts on fish and other marine species and habitats from the offshore disposal of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:309: Extensive dredging activity is planned for this area of the River Tees,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:309: species such as European Eel, Atlantic Salmon and Lamprey, it is result of the dredging have been

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:309: likely that dredging activity will need to take into account the considered in Section 7, and the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:309: would entail limiting dredging activity to certain times of the year migratory fish is presented in Section

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:309:of underwater noise levels arising from construction works such as piling and dredging. This section

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:317: • Byelaw XXIII – Method and Area of Fishing (Scallop Dredges) Byelaw 2015 – prohibits any

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:317: scallop dredge activity within the Tees Estuary and any marine area within 3nm of the coast.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:318:vessels under 10m in length. As outlined in Section 13.4.2.1, trawling, scallop dredging and netting gear

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:318:13.5.1 Changes in marine water quality due to dredging activity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:318:During capital dredging, approximately 1.8Mm3 of sediment (including approximately 1.27Mm3 of soft

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:318:material) will be removed by TSHD and backhoe dredger, which will result in a temporary increase in SSC

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:318:in one phase, the capital dredge campaign is anticipated to continue for approximately four months. Full

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:318:dredging, is provided in Section 6. The peak suspended sediment concentration within the Tees during the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:dredging campaign is predicted to be around 85 mg/l, although this is very limited in extent and would only

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:it is very unlikely that disturbance of sediment during the dredging would result in exceedances of EQSs,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:affected areas (Appleby and Scarratt, 1989). However, given that maintenance dredging is regularly

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:undertaken with the Tees by PDT (almost daily maintenance dredging all year round), it can be reasonably

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:to the disturbances associated with dredging activity.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:it is assumed that the programme for the capital dredging in the proposed scheme may coincide with peak

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:during a period of very hot and dry weather. Modelling of the sediment plume during capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:the dredging activity and falls below 50mg/l a short distance from the area being dredged. Concentrations

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:319:of suspended sediments are predicted to decrease significantly with increased distance from the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:no more than a few hundred metres from the dredging source.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:to the proposed dredging, significant elevations in SSC are predicted to occur in the immediate vicinity of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:the dredger and along the streamline and, for the most part, are expected to be restricted to a relatively

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:dredging phases set out in Section 6, the maximum area affected by increased SSC includes the entire

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:migratory fish movement in the estuary, particularly in juvenile (smolt) stages. With the dredging lasting for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:journeys throughout the dredging campaign.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320: therefore be undertaken in long strips along the axis of the estuary rather than dredging across

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320: the width of the river. This is to reduce both the extent and impact of the dredged plume, as any

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320: dredging operation, as with other capital dredge operations in the Tees (e.g. Royal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:of the river at a time and, should dredging be undertaken during the months when migratory fish are present

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:which migratory fish will be able to move past the dredging activity (and for resident species to relocate to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:not viable since the size of dredger has to be sufficient to carry a large enough drag head and to have

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:320:sufficient propulsion power to undertake the required dredging operation.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:13.5.2 Entrainment of fish and fish eggs by dredging gear

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:Use of dredging apparatus, particularly TSHD dredge heads, could potentially lead to the entrainment of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:effects from direct uptake during dredging include physical injury, mortality and displacement. The potential

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:the lower Tees estuary, including the footprint of the proposed dredge, with plaice and dab notably abundant

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:Physical disturbance to the riverbed and noise/visual disturbance within close proximity to the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:crustaceans), with the presence of the dredge head likely resulting in them temporarily relocating away from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:the substrate or by other means, are likely to be sensitive to entrainment from dredging activities on that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:these species develop in the water column and are less sensitive to being entrained by dredge gear

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:operating at the seabed. Regardless, regular maintenance dredging undertaken within the proposed dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:risk of direct uptake of eggs during the capital dredge.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:since it would be limited to those present within the dredge footprint (an area of ~350,000m2). Given that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:of dredging on benthic habitat and food resources, assessed in Section 13.5.5.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:13.5.3 Underwater noise during dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:the dredging options) include movement of the drag head on the seabed, material suctioned through the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:TSHD dredgers are typically low frequencies, up to and including 1kHz (Robinson et al., 2011). Underwater

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:knots) (Theobald et al., 2011). Although backhoe dredging will also be employed during the capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:321:dredging, underwater noise associated with this method is generally considered to be lower than for TSHD

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:322:line system. As such, underwater sound arising from the dredging is expected to fall within the hearing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:322:such as those produced by operational dredging vessels, to fish, as presented in Table 13.8. Given a lack

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:323:For the purposes of this assessment, the risk that noise from dredging activities could result in mortality or

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:323: worst-case scenario (this form of dredging forms the worst-case scenario for the proposed scheme);

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:323: Tees Dock turning circle and the dredge footprint for the proposed scheme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:323: • The bathymetry and substrate in the proposed dredging location is broadly similar to that in the area

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:323:which certain unweighted RMS SPLs were expected to occur from both backhoe and TSHD dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:Table 13.9 Summary of the modelled ranges for unweighted RMS SPLs in 10dB increments for dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324: Unweighted RMS Backhoe dredging TSHD

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:Modelled ranges for backhoe dredging are notably less than they are for TSHD. For the most sensitive

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:when considering use of TSHD, and 5 to 10m from source when undertaking backhoe dredging). This is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:will be breaks in dredging activity during the dredge/disposal cycles, plus it is highly unlikely that fish would

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:dredging, during an underwater noise survey conducted by Subacoustech in 2014 (Royal HaskoningDHV,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:will be sustained for as long as dredging is ongoing (a period of approximately four months). Noise levels

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:from backhoe dredging are considerably lower, and only significantly exceed background levels within a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:vessels and almost daily maintenance dredging, and they would also be able to temporarily move to nearby,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:324:less affected areas within the river while dredging is ongoing. Potential impacts for migratory species are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:downstream, particularly if dredging is undertaken during key migratory periods (see Section 13.4.1.2).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:Given that significantly elevated noise levels produced during backhoe dredging are not expected to extend

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:The TSHD campaign is predicted to last for approximately four weeks. While dredge/disposal cycles will

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:dredging would likely be very similar to the almost-daily maintenance dredging activities undertaken in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:recommence once the dredging campaign has ceased. Furthermore, the noise levels at the site will abate

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:for the majority of each dredge/disposal cycle while the TSHD vessel transports material to and from the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:dredging campaign. As such, the significance of a potential barrier effects on migratory species caused by

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:Use of dredging vessels are imperative for the proposed scheme. While use of smaller dredger heads may

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:measure. Applying the measure set out in Section 13.5.1 (dredging along the axis of the river, rather than

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:across the river) will help to ensure that noise levels at the opposite side of the river from the dredger remain

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:325:as low as possible over a dredge/disposal cycle, but as stated above the elevated noise levels will be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:fish. Removal of the wharf would result in a permanent loss of such habitat. Additionally, capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:on benthic estuarine flora and fauna, the regular maintenance dredging undertaken by PDT within the river

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:channel leads to a conclusion that the area of subtidal to be affected by the proposed dredging is unlikely

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:to represent an important spawning or feeding site . Regardless, capital dredging activities on existing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:The ongoing maintenance dredging suggests that subtidal habitat in the proposed dredge footprint is likely

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:Given the maintenance dredging that occurs, it can be reasonably assumed that fish feeding within the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:dredging activity. For this reason, the general sensitivity of fish to temporary changes in subtidal habitat in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:Given the above, alteration of the subtidal habitat as a result of dredging activity is considered to have a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:As well as the subtidal area affected directly by dredging activity, the increases in SSC anticipated during

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:capital dredging activity will consequently result in an increase in sediment deposition, which has the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:within the dredged area, whilst other areas outside the dredge footprint affected are typically less than 5cm.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:328:In the small extent of subtidal area outside the dredge footprint that may be affected by a small amount of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:330:those already subject to regular maintenance dredging and/or experience high volume of vessel traffic and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:331:13.6.3 Change in maintenance dredging regime affecting supporting habitats and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:331:effects on the existing maintenance dredging strategy, and no changes to the present-day maintenance

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:331:dredging strategy are necessary. As such, there would be no additional impact on supporting benthic

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:331:habitats and prey resources beyond those already associated with the existing maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:334: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:334: Advertised Dredge Depths (m)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:334: Advertised Dredge Depths

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:335:to the presence of the dredger and barges within and adjacent to the navigation channel (as well as any

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:335:area in the vicinity of the proposed quay but the capital dredging will, at certain stages in the construction

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:335: • Post dredge surveys and promulgation.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:335:It is envisaged that PDT would manage any potential conflicts in the same way as routine dredging and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:335:Harbour Master. Management of dredging operations within a busy port environment is a standard activity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:337: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:337: dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:337: deposition will require periodic dredging to maintain the design depths.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:337: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:339: disposal of dredged material should be taken into account.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:341: The Tees has been subject to dredging in the recent past meaning the potential for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:343: heritage is likely to be limited by dredging within the immediate area of the proposed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:343: wreck sites whether these are situated within an area of proposed new dredging 16.4.1 and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:343: dredging and offshore disposal activities (Figure 6.2).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:344: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:345: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:351: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:352:known to have been found during dredging within the river channel and there is a submerged forest is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:352:located near Hartlepool on the north bank. Although extensive dredging and reclamation has taken place

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:353: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:354: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:355:reclamation and disturbance from previous dredging within the channel. Although there is high potential for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:356: • Dredged channel/area, Navigation feature (Section of navigable waters), Modern (AD1900 –

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:356:proposed scheme (dredging and construction of the new quay) are in keeping with the historic (and current)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:358: • capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:359:by the historic reclamation and disturbance from previous dredging within the channel.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:359:potential for remains to be present, if such remains are encountered during dredging or during excavations

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:359:If present, dredging within the turning circle and approach channel and dredging / excavation to create the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:359:to effects during construction it is concluded that, other than within the dredged areas, sediment deposition

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:359:it will subsequently be dredged as part of ongoing maintenance dredging regimes, whilst material deposited

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:359:back into the newly dredged areas will be re-dredged during the capital works in order to achieve the desired

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:360: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:360: o in the main channel the deposition will require periodic dredging to maintain the design

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:360: construction as impacts are expected to already have occurred during the capital dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:360: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:367: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:373: • Dredging; and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:375: Dredging THSD/backhoe 1 C7.2 60 110.3

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:385: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:388: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:390: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:395: Dredging (one backhoe, one TSHD, two 6 20

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:395:Vessels used for the proposed dredging would be in use for a relatively short amount of time (approximately

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:424:comments on their requirements when considering the potential impact of dredging on the estuary, the need

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:426:namely the proposed dredge footprint, is in Flood Zone 3, associated with the 1 in 200-year return period

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:427: 3.7 * The proposed dredge footprint at the Tees Dock

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:454:dredging activity which are likely to translate to very small direct employment effects. As such, adopting the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:454:occur during demolition, quay construction, excavation and dredging phases. Assuming a gradual ramping

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:465: • fuel consumption from marine vessels, dredgers and road traffic; and,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:467:Capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:467:Capital dredging will be carried out within part of the Tees Dock turning circle, within parts of the existing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:467:navigation channel and within areas not currently subject to maintenance dredging to create a berth pocket.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:467:This would include dredging of marine sediments and excavation of soils / landside material within the river

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:467:The total dredged volume for marine sediments is predicted to be approximately 1,800,000m3. Dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:467:will be undertaken using a combination of a TSHD and a backhoe dredger. Different backhoe dredgers will

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:467:the transport of sediment dredged using the backhoe dredger to the offshore disposal site.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:468:Information for the calculation of GHG emissions from dredging are provided in Table 22.5.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:468:Table 22.5 Specifications of dredgers and barges to be used during the construction phase

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:468: Number of dredgers 1 1 1

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:468: Installed power dredger (kW) 8,313 1,600 1,600

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:468: dredger and barge)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:468: Power load factor estimate – dredger 50% 75% 80%

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:468:In addition to the workboats associated with demolition listed in Table 22.4, and dredgers and barges listed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:471: Construction dredger 6

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:478:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:478:The proposed scheme is predicted to generate up to approximately 1,800,000m3 of dredged sediment from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:478:been undertaken on a worst-case basis whereby all dredged sediment from the Tees estuary would be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:478:26.2 Modelling the dispersion and deposition of capital dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:478:To inform the assessment of environmental impacts from predicted offshore disposal of dredged material,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:479:The proposed disposal of dredged material within the Tees Bay C offshore disposal site has the potential

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:479:within and beyond the boundary of the Tees Bay C site due to disposal of dredged material. Seabed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:479:that there would be negligible impact on fish or fisheries due to the proposed deposition of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:479:In 2010, CEFAS undertook the ‘SLAB5’ dredged material disposal site sampling survey at a number of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:482:The proposed disposal of dredged material at the Tees Bay C offshore disposal site would be significantly

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:482:arise from offshore disposal of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:482:disposal site (an area which is designated specifically for the disposal of dredged material), however the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:invasive species Theora lubrica were found in samples from the Tees estuary, within the NGCT dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:are within the areas which are subject to regular maintenance dredging by PDT, however were located

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:outside of the proposed dredge footprint for the proposed South Bank scheme. The proposed dredging and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:dredge footprint prior to the dredge taking place (if they are not there already).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:species are not present at levels of concern within the Tees estuary. Maintenance dredged material from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:Bay for many years and will continue into the future. As a result, the disposal of dredged material within

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:(beyond that which has already occurred from previous and ongoing maintenance dredge disposal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:To undertake the disposal operation, the TSHD and/or disposal barges would transport dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:from the proposed dredge footprint to the Tees Bay C offshore disposal site. Consequently, there is potential

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:The disposal operations are linked to the dredging task and would require regular movements of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:plant between the dredge site and the disposal site, via the navigation channel and the coastal waters of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:dredged material offshore would be low (i.e. a TSHD and/or a barge), and no impact is predicted.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:The proposed disposal of dredged material has the potential to result in shallowing of the water depth above

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:484:significantly impacts navigation. It is concluded that the proposed disposal of dredged material into the Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:The underwater noise predicted to arise from the proposed dredging activities have been used as a proxy

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:for the assessment of potential impacts associated with offshore disposal of dredged sediments (see

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:disposal of dredged sediments are likely to be less than those generated during dredging activities. The

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:impact ranges are based on those modelled for the Hartlepool approach channel dredging scheme (see

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:As outlined in Section 10.5.1, there would be no risk of any PTS as a result of the proposed dredge and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:consequently this conclusion also applies to the proposed offshore disposal of dredged material.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:display a fleeing response, as a result of underwater noise during offshore disposal of dredged sediments

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:offshore disposal of dredged sediments

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485: et al., 2019) dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485: disposal of dredged 0.003km2

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485:result of underwater noise associated with offshore disposal of dredged sediments

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:485: disposal of dredged (0.0000006% of the NE England MU) (temporary effect with less than 1% of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:486:dredged sediments is negligible / very low for harbour porpoise, minke whale, grey seal and harbour seal,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:486:disposal of dredged sediments would be limited to the immediate vicinity of the vessels while they are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:486:disposing of the dredged material. The number of harbour porpoise, minke whale, grey seal and harbour

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:486:dredged sediments on harbour porpoise, minke whale, grey seal and harbour seal, has been assessed as

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:486:Table 26.5 Assessment of impact significance for underwater noise during offshore disposal of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:486: dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:486:Potential for vessel interactions (collision risk) with marine mammals during disposal of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:487: of dredged 0.002 grey seal Negligible / very low magnitude

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:487:potential increase in collision risk with vessels during offshore disposal of dredged sediments has been

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:487: of dredged very low

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:487:disturbance due to the disposal of dredged sediment into the disposal site to seals at Seal Sands, including

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:488:As outlined in Section10.5.4, any vessels passing the seal haul-out sites as they take the dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:488:dredged sediment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:488:The offshore disposal of dredged material would temporarily increase the suspended sediment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:488:Changes to marine mammals prey resource during offshore disposal of dredged sediment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:491:the basis of the potential extent of the dredging and disposal plumes.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:492: Proposed quayside works and dredging at its North Sea supply base Approximately

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:492: The NGCT scheme comprises capital dredging up to 4.8 million m3

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:492: disposal of dredged material offshore, construction of a new 1.5km The NGCT scheme is located in very close

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:492: NGCT elements (buildings, rail terminal, road access, lighting, drainage Dredge footprint therefore is screened into the CIA.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:492: • dredging up to 750,000m3 of material from the approach

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:493: • dredging up to 372,000m3 of material from the approach

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:493: In addition to the proposed dredge (and associated disposal of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:493: dredged material), PDT is proposing to construct an underwater

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:493: being undermined following the proposed dredge.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: nature of this activity, maintenance dredging and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: for the area. However, maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: dredging at Hartlepool This activity has been ongoing for many years. 0km capital dredging activity required for South Bank

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: dredging at Hartlepool channel as the effects of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: 1 and Dolphin D, and a dredge of the river bed adjacent to the Consent in place small scale that there would be no significant

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: (with associated disposal of dredged material) to extend the existing dredge footprint cumulative impacts.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: Given that the dredge footprint largely overlaps

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: dredging in Tees Dock, which, given its location,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: The Tees Channel Dredge project involves a proposed deepening of would have no means of affecting the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: maximum maintained depth of 14m below CD. An Environmental estuary system), the area would be dredged by

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: Tees Channel Dredge Scoping Report (Royal HaskoningDHV, 2016) was submitted to the 0km either the South Bank project or the Tees Channel

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: MMO alongside a request for a scoping opinion for the project in Dredge project (not both). This removes the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:494: report has not yet been undertaken. Tees Channel Dredge project, therefore, has not

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:495: • Dredging of the existing berth and disposal of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: The MMO sees the proposed dredge as a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: maintenance dredge activity. Given the frequency,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: PDT is proposing to undertake a dredge of the approach channel to dredging, maintenance dredging and disposal is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: MMO has confirmed that PDT should submit a variation request to However, the proposed dredge could be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: Tees channel dredge its existing maintenance dredge licence in order to dispose of the undertaken at the same time as the capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: dredged material (i.e. the MMO sees the proposed dredge as a dredging activity required for South Bank (albeit

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: maintenance dredge activity). PDT’s intention is to undertake the within a different part of the estuary).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: dredge during 2020/2021.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:496: under the ‘maintenance dredge’ umbrella

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:American Harbour Facilities schemes and the ongoing maintenance dredging in the Tees estuary:

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500: • dispersion of suspended sediment during capital dredging and deposition at the offshore disposal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:Maintenance dredging at Hartlepool and within the Tees estuary has been on-going for many years. Given

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:the frequency, duration and the ongoing nature of this activity, maintenance dredging and disposal is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:Dispersion of suspended sediment and deposition on the seabed during capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:All projects scoped into the CIA involve will involve capital dredging. This activity will create a plume of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:During the capital dredging works for the proposed scheme, other port facilities on the Tees will remain

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:operational. Maintenance dredging is, therefore, expected to continue throughout the capital dredge period.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:The capital dredge is also expected to influence the maintenance dredging requirements during and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:The extent of the sediment plume created by capital dredging is heavily dependent on the dredging plant

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:500:that is adopted, and this is determined by (amongst other factors) the nature of the bed and the dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:likely dredge plant that would be adopted and, in some cases, assumed that different types of plant would

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:be used for dredging different sediment types as part of the same project. As noted in Section 6.5.2, it is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:affected by a plume at some point during the dredging or disposal activities (in some areas this will be on a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:of sediment plume dispersion and deposition onto the river and/or seabed during capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501: Combined maximum zone of influence from Stages 1 - 4 inclusive of the dredging activities

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:NGCT TSHD dredging sand in the approach channel in low river flow, spring tide

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:sediment in the water column was predicted to be in close proximity to the dredger, with plume dispersion

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:dredging (and reclamation for NGCT) over the slack water period. In practice, much of this deposited

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:material will be re-dredged as part of the capital works for each scheme. At the peripheries of each plume,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:501:It should be noted that the potential for cumulative effects only arises should the dredging for the proposed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:502:(right) as a result of the proposed scheme [Note: plots show sediment plume impacts arising from dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:502:activities during Stages 1 - 4 inclusive of the capital dredging programme]

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:The potential impacts of the maintenance dredging programme in the Tees are considered within the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:Maintenance Dredging Baseline Document (Royal Haskoning, 2008). This consideration is specifically in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:the context of the implications of maintenance dredging for the Teesmouth and Cleveland Coast SPA and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503: • effect of increases in suspended sediments during maintenance dredging on food resources of SPA

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503: • increased noise levels (disturbance) during maintenance dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:The Maintenance Dredging Baseline Document 2008 concluded that maintenance dredging represents a

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:potential supply of fine material to Seal Sands, with the timing of maintenance dredging in relation to the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:however, the Maintenance Dredging Baseline Document concluded that the maintenance dredging activity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:The WFD assessment presented in the latest annual update to the Maintenance Dredging Baseline

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:Document (Royal HaskoningDHV, 2019) concluded that, at water body level, maintenance dredging at

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:capital dredging have been proposed for the Anglo American Harbour facilities and the NGCT. For the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:former project, mitigation comprises the use of specialist dredging equipment (i.e. an enclosed grab loading

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:into a sealed barge) for dredging of unconsolidated material to minimise resuspension in the water column.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:503:This requirement is specified because of the elevated concentration of contaminants within the dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:504:will be no impact on tidal propagation or water levels due to the limited area of proposed dredging for this

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:504:channel in the lower estuary that will arise from capital dredging for the NGCT.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:504:that the proposed new quay alignment and capital dredge will not significantly affect the existing baseline

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:504:the dredging is predicted to draw some of the flow to the south side of the estuary, although such effects

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:505:require periodic dredging to maintain the design depths (a 10% increase in annual maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:505:proposed dredge).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:505:offshore; with the potential to increase the maintenance dredging requirements by about 10%. No increase

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:505:used for, maintenance dredging, and no effect on sediment supply to intertidal areas throughout the Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:505:The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:505:material to Seal Sands. However, the latest annual update to the Maintenance Dredging Baseline

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:505:maintenance dredging regime could adversely affect the overall estuary morphology and the ongoing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506:maintenance dredging in the Tees estuary as follows:

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506: • dispersion of suspended sediment during marine works, dredging and disposal; and,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506:cumulative effects only arises should dredging for each scheme coincide. Under such circumstances, the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506:timing of the projects and their respective programmes of capital dredging will coincide to result in a scenario

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506:across the estuary and navigational safety is unlikely to support dredging on different sides of the estuary

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506:In terms of maintenance dredging, there is the possibility that maintenance dredging could occur at the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506:relatively localised effects to the dredger produced in the hydrodynamic modelling assessment for the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:506:similar throughout the estuary where regular maintenance dredging occurs. As a result, and noting the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:507:within the footprint of the proposed scheme, where the intertidal area will be dredged to create the berth

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:507:capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:507:Sediment deposition resulting from the dredging for the proposed scheme will largely be within the proposed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:507:dredged footprint. Deposition that occurs in other parts of the river is predicted to be much lower, typically

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:507:are largely similar; however, the effect of the NGCT dredge is larger, with deposition predicted to extend

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:508:Maintenance dredging is targeted at areas that require dredging to maintain navigable depths and, although

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:508:Based on the above, it is concluded that there will be no cumulative effect on the maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:508:modelled for piling and dredging for the Hartlepool approach channel (Table 27.3).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:508:dredging based on NMFS (2018) criteria for Hartlepool approach channel scheme modelling

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:508: during dredging South Bank Harbour porpoise 153 dB re 1 µPa HF SELcum 0.7km

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:509:dredging at the proposed South Bank scheme, NGCT, Hartlepool approach channel and Anglo American

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:509:temporary auditory injury (TTS) or a fleeing response from cumulative impacts of piling and dredging at the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:509: during dredging – III Block O density of 0.888/km2.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:510: during piling and dredging – density of 0.01/km2. population anticipated to be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:510:or dredging noise from the proposed scheme, NGCT, Hartlepool approach channel and Anglo American

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:510:disturbance as a result of cumulative underwater noise impacts from piling and dredging activities on

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:511:dredging activities on marine mammals

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:511: dredging at the Negligible /

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:511: • Ongoing maintenance dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:511: • Tees channel dredge.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:of the proposed scheme, should it be undertaken at the same time as the dredging required for the NGCT,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:dredging works that exist within the Tees estuary. As stated in Section 12.5.2, the main receptor that may

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:In order for a potential cumulative impact to manifest, the dredging campaign for the proposed scheme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:would need to coincide with at least one of the other dredging campaigns noted above, and both would need

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:this occurs, the zones of influence from dredging would create an additive effect, as demonstrated in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:more dredge campaigns ongoing at any one time.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:(i.e. dredging along the axis of the river rather than across it to ensure that, at any one time, sediment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:Anglo American Harbours facilities scheme, specialist dredging equipment (i.e. an enclosed grab loading

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:into a sealed barge) will be used for dredging of unconsolidated material to minimise resuspension in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:Stage 2 of the proposed capital dredging coincide with the Hartlepool Channel deepening works, the two

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:dredging plumes together will still affect only around 0.5% of the SPA subtidal habitat (Royal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:513:HaskoningDHV, 2015)). However, the additive effect of the sediment plumes from separate dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:Changes in marine water quality due to dredging activity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:require dredging, including the NGCT, Anglo American Harbour Facilities and the ongoing maintenance

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:dredging works. The main receptors that may be affected by this cumulative effect are migratory species,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:Should two or more of the dredging campaigns for the proposed scheme, the NGCT scheme, the Anglo

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:American Harbour facilities scheme and the ongoing maintenance dredging be undertaken simultaneously,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:and preventing migration, should the dredging be undertaken during the peak migration season.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:scheme in Section 13.5.1 (i.e. dredging along the axis of the river, rather than across it to ensure that, at

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:514:of the sediment plumes from separate dredging campaigns cannot be completely avoided if the campaigns

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:Underwater noise from the proposed scheme is predicted to arise from both dredging and land-based pile

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:the land-based piling, there may be minor adverse impacts from the dredging noises which could potentially

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:Should the dredging campaign for the proposed scheme coincide with dredging from one or more of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:NGCT scheme, the Anglo American Harbour facilities scheme and the ongoing maintenance dredging, the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:Given the regularity of maintenance dredging within the channel, resident and migratory fish in the estuary

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:reduce the magnitude of impacts from individual dredges. It has to be recognised that underwater noises

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:in isolation, though it is highly unlikely that there would be more than one or two dredge campaigns ongoing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:American Harbour Facilities scheme. The South Bank dredge footprint will pass adjacent to the site of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:515:Anglo American Harbour Facilities and the NGCT dredge footprint (overlapping with the proposed dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:516:to this are the dredging footprint for the Tees Dock turning circle (which is also included as part of NGCT

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:517:dredge footprint), and the landward part of the proposed scheme of this application (which overlaps in part

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:517:However, as the dredging for the turning circle will only take place once, either for NGCT or for the scheme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:521:27.5.22 Disposal of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:521:The proposed scheme involves the requirement to dispose of up to 1,800,000m3 of dredged material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:521:offshore, should no beneficial re-use options be forthcoming prior to the dredge taking place. Section 26

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:521:concludes that the disposal of dredged material will have a negligible impact on fisheries, marine ecology

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:522:estuarine-and-coastal-waters. The proposed quay, dredge area, disposal site and WFD water body outlines

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:522:maintenance dredging campaigns would be on a significantly smaller scale than the capital dredging and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:522:that the estuary is already subject to ongoing maintenance dredging, scoping is undertaken on capital

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:522:dredging only.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:523: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:524: • C2 Capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:524: dredger.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:526: 22.Dredging disposal strategy

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:526: 23.Reduce impact of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:526: 25.Retime dredging or disposal None identified

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:526: 27. Dredge disposal site selection

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:528:C2 Capital dredging hydromorphology and WFD mitigation are no higher sensitivity water quality due to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:528: 500m. during dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:529:C2 Capital Dredging No – dredging will not impact on the groundwater body

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:530:28.5 Detailed assessment – C2 Capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:531: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:531: to the new quay alignment) and the local deepening of the bed due to the capital dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:531: the deposition will require periodic dredging to maintain the design depths.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:531:in mean tidal prism as a result of the new quay’s set-back alignment and dredging of part of the existing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532:Overall therefore, the effects of the capital dredging and presence of new quay wall on the flow conditions

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532:Capital dredging within the river would result in sediment plumes. To consider the potential extent and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532:model MIKE3-HD and run for the four-month period over which dredging is predicted to occur. The

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532:simulations also accounted for the movement of dredgers and transport barges (including dredging, sailing,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: BHD working to dredge the In all tidal conditions modelled, the lateral extent of the plume across the river channel

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: created by the different dredgers. At some points in the cycle, areas of these initially

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: parallel to dredge the middle

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: 3 BHD working to dredge the The maximum concentrations and the spatial extents of the plume arising from Stage

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: bottom hard material in the 3 of the dredging are much lower than those experienced during Stage 1 largely

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: berthing pocket and river because the material being released is coarser and the production rate of dredging is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: channel. notably lower. Plume very small and located close to the dredging activity.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: 4 Again, peak concentrations close to the dredger are shown in the plume modelling

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:532: parallel to dredge the material

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:533: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:concentations within an hour. All other stages of proposed dredging either do not cause elevations or only

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:Tyne for the New Tyne Crossing to predict the consequences of dredging on dissolved oxygen

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:such as dredging times, seasonal fluctuations and river flows, the modelling predicted only small differences

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:between background and dredging impacted dissolved oxygen concentrations. No difference was noted

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:between the summer and winter concentrations. Furthermore, dredging in the Tyne is considered to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:limited plume extents for the majority of the capital dredge for the proposed scheme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:dissolved oxygen concentrations are only likely to be an issue when dredging within an area with an existing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:534:monitoring of dredging suggests effects are unlikely. Given the water body has a classification status of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535: • A relatively large proportion of the total volume of dredged material is anticipated to comprise

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535: the dredge area.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535: • The daily dredge volume is likely to be less than that accounted for due to stoppages associated

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535: • The calculation is based on loss from a TSHD whereas a considerable component of the dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535: will be undertaken with a backhoe dredger which has a lower production rate and therefore

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535:with hours) for Stage 2 which reduce as dredging progresses (see Figure 28.4).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535:suspended solids when in close proximity to the dredger. As a result, a non-temporary deterioration in water

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535:The majority of the proposed dredge footprint is located within the subtidal parts of the Tees estuary and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535:therefore the majority of the dredge would impact on the lower sensitivity habitat ‘subtidal soft sediment’ of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:535:locate the quay in the riverbank (i.e. on land), dredging and excavation in front of the quay wall to create the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:536:Information regarding the habitat located within the dredge footprint is to be confirmed with a site specific

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:536:collected to inform the ES for NGCT are likely to be similar in nature to those found within the dredge

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:536:most frequently in the estuarine locations (and within the area to be dredged for this project) was EUNIS

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:536:The biotopes recorded in the 2019 survey are likely to reflect those located in the dredge area given their

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:536:Whilst capital dredging would remove material from the seabed it would not alter the habitat type available

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:536:composition and numbers following dredging, it is predicted that the sediment communities would recover

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:537:It is also recognised that the proposed dredge footprint is within close proximity to the North Tees mudflat,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:537:Sediment suspended within the dredging plumes will fall to the riverbed, either soon after disturbance or

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:537:spillage occurring during the dredging operation (for coarser-grained sediment fractions), or at a point in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:537:by deposition. It can be seen that much of the sediment falls to the bed within the dredged areas (from

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:537:where it will be re-dredged to achieve the necessary bed depths), whilst the deposition that occurs in other

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:538:Figure 28.5 Maximum river bed thickness change due to sediment deposition arising from dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:538:activities during Stages 1 - 4 inclusive of the capital dredging programme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539:affected areas (Appleby and Scarratt, 1989). However, given that maintenance dredging is regularly

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539:affected area would likely be relatively tolerant / acclimatised to the disturbances associated with dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539:areas of the estuary at any one time. Additionally, it is proposed that dredging would be limited to one side

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539:past the dredging activity (and for resident species to relocate to largely undisturbed areas), thus reducing

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: There would be a temporary presence of dredging vessels but

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: Dredging disposal strategy Whilst there would be a temporary increase in material that

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: Reduce impact of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: would not alter significantly the maintenance dredging and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: Retime dredging or disposal MMO and their advisors Cefas.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: Dredging would be managed in line with mitigation measures

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: Dredge and disposal site selection agreed for various environmental topics which include

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: dredging along the axis of the river to ensure the plumes are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:539: a result of the capital dredge is provided in Section 28.5.3.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:540:The combined effects of the dredge area and presence of new quay wall set back in the embankment are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:540: Dredging disposal strategy

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:541: Reduce impact of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:541: Retime dredging or disposal Riverbank excavation would not impact on these mitigation

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:541: Dredge and disposal site selection

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:542:The combined effects of the dredge area and presence of new quay wall set back in the embankment are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:542: Dredging disposal strategy

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:542: Reduce impact of dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:542: Retime dredging or disposal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:542: Dredge and disposal site selection

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:542: on marine ecology are related to dredging of the berth and are

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:543: deepened areas associated with the capital dredge which could have effects on ecological

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:543: • The combined effect of the loss of intertidal habitat (dredged berth), loss of subtidal (rock blanket)

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:543: and temporary disturbance of subtidal habitat (capital dredge) on ecological potential of the WFD

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:544: • The combined effect of dredging and effects associated with piling and riverbank excavation on

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:544:same as the effects predicted for the capital dredging alone.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:544:predicted to be temporary and a significant portion of the dredge area is already subject to maintenance

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:544:dredging so is already disturbed and supports communities habituated to this disturbance. The remaining

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:544: • Ongoing maintenance dredging in the Tees estuary.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:544:All schemes require dredging and construction of new riverbank structures and therefore the following

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:544: • Disturbance of marine habitats associated with dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:maximum concentrations of suspended solids are localised to the dredging activity and quickly disperse

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:with distance from the dredger. Additionally, peaks are relatively short lived (approximately an hour at a time

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:for the proposed scheme for example) and associated with specific dredging phases of each scheme. The

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:water column would be significantly increased by the projects all dredging at the same time. Where

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:proposed project both include mitigation measures to dredge in long strips to reduce the effects of sediment

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:dredgers would be working on different sides of the estuary and therefore clear channels would be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:Any project that requires dredging would disturb the marine communities within the sediments to be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:dredged. However, PDT undertake maintenance dredging in the majority of the estuary. Consequently, all

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:disturbance. Given dredging for all projects would not alter the substrate type or exposure, subtidal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:index are not predicted given the existing maintenance dredging which would be accounted for in the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:proximity to the dredging over the slack water period for all projects. In practice, much of this deposited

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:545:material will be re-dredged as part of the capital works for each scheme. Beyond the immediate deposition

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:547: or water levels due to the limited area of proposed dredging for this project. Cumulative effects are therefore not predicted over and above those identified for the scheme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:547: Currents Modelling for the proposed scheme showed that the new quay alignment and capital dredge would have very small localised effects predominantly near to the quay wall but

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:547: require periodic dredging equivalent to a 10% increase in annual maintenance dredging requirement.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:547: material to the Tees estuary from offshore; with the potential to increase the maintenance dredging requirements by about 10%. No increase in sandy infill was predicted. A

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:547: changes in current speeds but that this would not alter the present frequency of, or methodology used for, maintenance dredging. Additionally, no effect was identified on

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:548: The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine material to Seal Sands. However, the latest annual update to the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:548: Maintenance Dredging Baseline Document (Royal HaskoningDHV, 2019) concludes that the current maintenance dredging regime does not adversely affect the overall

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:548: estuary morphology and the ongoing morphological processes at work. Additionally, maintenance dredging forms part of the baseline for WFD classification given that it is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:549:dredging’ identified risks to all WFD quality elements but detailed assessment deemed that the impacts

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:549:the locality of the dredger and only for hours at a time during Stage 2 of the proposed dredge programme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:549:All other stages of dredging required for the proposed scheme did not indicate significant concentrations of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:549:protect resident and migratory fish further reduce this risk as dredging will be limited to occurring in long

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:550:These were NGCT, Anglo American Harbour Facilities and ongoing maintenance dredging in the estuary.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:550:would be sediment plumes associated with dredging simultaneously. However, on further consideration,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:550:peak concentrations for all projects are restricted to close proximity to the dredger and disperse with

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:550:projects would occur at the same time. Mitigation measures such as dredging in long strips as required for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:555: dredging, excavation and demolition works.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:555: • Sand and shingle • Water quality reductions from demolition and dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:555: with offshore disposal of dredged material have been

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:556: Northumberland a result of underwater noise during dredging and • No pathways for effect

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:557: (100km south porpoise as a result of underwater noise during dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:557: • Mudflats and sandflats not due to underwater noise from dredging and offshore

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:559:dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:559:influence of the proposed scheme will be determined by the sediment plume during dredging activities.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:561: Proposed quayside works and dredging at its North Sea supply base Approximately

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:562: The NGCT scheme comprises capital dredging up to 4.8 million m3 Should the NGCT scheme coincide with the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:562: disposal of dredged material offshore, construction of a new 1.5km interest features of the SPA / Ramsar site could

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:562: NGCT elements (buildings, rail terminal, road access, lighting, drainage Dredge footprint noise, visual disturbance and water quality

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:562: • dredging up to 750,000m3 of material from the approach scheme, in-combination effects to the interest

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:562: • dredging up to 372,000m3 of material from the approach

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: In addition to the proposed dredge (and associated disposal of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: dredged material), PDT is proposing to construct an underwater

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: being undermined following the proposed dredge.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: nature of this activity, maintenance dredging and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: for the area. Although maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: Ongoing maintenance dredging for the scheme, there is potential for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: dredging at Hartlepool This activity has been ongoing for many years. 0km maintenance dredging elsewhere within the Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: and in the Tees estuary to coincide with the capital dredging, which could

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: The effects of maintenance dredging at Hartlepool

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:563: maintenance dredge disposal licence) would not

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: refurbishment 1 and Dolphin D, and a dredge of the river bed (with associated

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: dredge footprint combination effects.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: disposal of dredged material) to extend the existing berth pocket

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: The dredge footprint for the proposed scheme

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: overlaps with the proposed Tees channel dredge.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: The Tees Channel Dredge project involves a proposed deepening of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: Tees Channel Dredge Scoping Report (Royal HaskoningDHV, 2016) was submitted to the 0km

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:564: the Tees Channel dredge would not be undertaken

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:565: • Dredging of the existing berth and disposal of dredged

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:566: dredge as a maintenance dredge activity. Given

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:566: PDT is proposing to undertake a dredge of the approach channel to maintenance dredging within the Tees, this activity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:566: its existing maintenance dredge licence in order to dispose of the capital dredging activity required for the proposed

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:566: dredged material (i.e. the MMO sees the proposed dredge as a scheme (albeit within a different part of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:566: maintenance dredge activity). PDT’s intention is to undertake the estuary).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:566: dredge during 2020/2021.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:566: under the ‘maintenance dredge’ umbrella

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:570: • Loss of intertidal feeding resource due to dredging and excavation to create the berth pocket.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:570: • Indirect impacts on foraging behaviour as a result of impacts to prey resource from capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:570: • Maintenance dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:572:Effects on water quality due to dredging and disposal

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:572:The capital dredging of the river will cause plumes of sediment to form. The plume effects arising from the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:572:river dredging are characterised by a short-lived localised increase in suspended sediment concentrations

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:572:by the order of a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:572:extent and reduction in concentration over the following hours. Since the dredging is a near-continuous

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:572:at varying extents depending on the dredging activities undertaken at any one time. Deposition thicknesses

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:be sustained in light of sea level rise. In the main channel, the deposition will require periodic dredging to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:maintain design depths. An increase in annual maintenance dredging requirement considered in Section

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:6 is predicted to yield a very low overall contribution to the net annual maintenance dredging requirements

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:from the estuary as a whole and the potential increase in maintenance dredging requirement could easily

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:be managed within existing maintenance dredging regimes (i.e. no change to the existing maintenance

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:dredge strategy is required).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:new quay’s set-back alignment and dredging of part of the existing estuary bed is 150,901m3. This

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:SPA, behind the existing wharf, to subtidal habitat, due to the capital dredging and excavation required to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:create the berth pocket. The dredging footprint in the channel and the Tees Dock turning circle does not

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:573:mudflat / other intertidal types in the estuary (i.e. the dredge will be within subtidal areas only). Dredging in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:574:as foraging grounds, indicated by WeBS core counts for the two sectors in which capital dredging will be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:574:subject to regular (almost daily) maintenance dredging by PDT therefore the impact of the capital dredge is

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:574:the proposed capital dredge. Furthermore, the subtidal area within the proposed dredge footprint represents

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:While 32.5ha of subtidal will be affected by the proposed capital dredging, the area already experiences

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:regular (almost daily) maintenance dredging by PDT so there are not expected to be any long-term changes

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:With the application of mitigation in the form of ensuring that the capital dredging transects run along the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:dredging activities associated with the highest modelled increase in SSC (i.e. Stage 2 of the dredging, which

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:The sediment dispersion modelling of Stage 2 dredging indicates that, at any given time, significant SSC

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:excesses from the capital dredging are confined to the dredging transects and are predicted to decrease

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:significantly with increased distance from the dredging vessel, both laterally and along the line of the vessel,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:month dredging programme.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:England, 2018a). The area affected by the sediment plume generated from proposed dredging, though

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:Maintenance dredging in the channel, undertaken by PDT on an almost-daily basis, infers that terns using

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:dredged.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:575:foraging opportunities during the capital dredging are not considered to represent a significant change to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:576:approximately five-month duration of the capital dredging campaign. As such, there are expected to be no

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:576:concludes that the periodic nature of underwater noise, plus the likely habituation to background dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:576:noise due to regular maintenance dredging, means that impacts on fish are considered to be of minor

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:576:opportunities during the capital dredging are not considered to represent a significant change to foraging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:578:construction personnel, plant / machinery, dredgers / other vessels and construction lighting. Sections

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:scheme footprint (not including dredging activities, which are considered separately below), therefore for

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:During dredging of the main channel and the turning circle, dredging vessels will operate in close proximity

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:to the North Tees Mudflat and Vopak Foreshore. Most notably, sections of the channel dredge footprint run

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:adjacent to the North Tees Mudflat, therefore the presence of dredging vessels may result in disturbance to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:dredging vessels which operate on an almost daily basis within the channel, including within 30m of the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:habituation over the proposed capital dredging period and any effects would lessen through the course of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:Disturbances at Vopak Foreshore would be limited to the approximately one week of dredging required to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:approximately 4.5 months of dredging required further upstream, but only during times when the dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:transect runs close to the mudflat (for example, when dredging the southern half of the river it is unlikely to

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:579:threshold, and the mudflat itself extends over a kilometre upstream of the proposed dredge footprint. As

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:580:associated with the capital dredging has been assumed to represent a temporary loss of foraging habitat in

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:580:various impacts commonly associated with dredging and industrial work in the Tees. As such, the number

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:581:adjacent to the dredging footprint. The proposed scheme will result in the conversion of approximately 2.5ha

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:581:of intertidal to subtidal habitat, demolition of artificial structures and dredging of an area of approximately

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:581:As stated in Section 29.5.4, the effects of capital dredging on subtidal habitat are considered to be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:581:characteristic of a disturbed environment regularly affected by ongoing maintenance dredging). Impacts on

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:projects. However, dredging activity may, at worst, lead to some localised redistribution on North Tees

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:the ongoing PDT maintenance dredging, have the potential to cause similar disturbance to the Vopak

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:Foreshore and / or North Tees Mudflat due to dredging activity in the channel. However, the dredge footprint

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:for the proposed scheme overlaps in part with the NGCT dredge footprint at the Tees Dock turning circle.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:The dredge at Tees Dock turning circle would therefore only be undertaken by one of these schemes, which

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:reduces the potential for in-combination disturbance to birds at Vopak foreshore. Maintenance dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:within the estuary occurs on an almost daily basis; such dredging was ongoing at the time the SPA and

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:Ramsar site was extended and has been occurring for many years. It is therefore concluded that dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:583:dredging for all schemes screened into the assessment be required at the same time (which is highly

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:approach channel scheme and the ongoing maintenance dredging by PDT.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:An interaction between the sediment plumes would only occur in the unlikely event that the capital dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:low, with any effect confined to the footprint of the proposed dredge. The predicted increase in suspended

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:impact dissipating within 10 minutes following completion of the dredge (Royal HaskoningDHV, 2018).

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:Harbour Facilities scheme, the ongoing maintenance dredging and the Dogger Bank Teesside A & Sofia

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:dredging transects oriented along the axis of the river rather than across to ensure that, at any one time,

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:For the Anglo American Harbours facilities scheme specialist dredging equipment (i.e. an enclosed grab

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:loading into a sealed barge) will be used for dredging of unconsolidated material to minimise resuspension

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:584:extensive (and on-going) maintenance dredging within the channel on an almost-daily basis, common terns

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:585:on land are excluded. The ongoing maintenance dredging is also not considered here as this forms part of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:585:increase in maintenance dredging requirement is not expected to be significant and could easily be

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:585:managed within existing maintenance dredging and offshore disposal regimes.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:585:been subject to maintenance dredging and offshore disposal as part of ongoing maintenance dredging.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:586:impacts commonly associated with dredging and industrial work in the Tees, regardless. As such, the

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:588:ABPmer (2005). Tees Maintenance Dredging Baseline Document. Report R.1149.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:588:Central Dredging Association (CEDA) (2011). Underwater sound in relation to dredging. Position Paper - 7

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:588:November 2011. Available at URL: http://www.dredging.org/documents/ceda/downloads/2011-

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:591:Halcrow (1991). Tees Estuary Dredging Review. Report for Tees and Hartlepool Port Authority.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:592:HR Wallingford (1992). Tees and Hartlepool Port Authority. Review of Dredging. EX 2580.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:593:sediment plumes arising from dredging. Construction Industry Research and Information Association

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:593:Jones, D. and Marten, K. (2016). Dredging sound levels, numerical modelling and EIA. Maritime Solutions

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:597:Pirotta, E., Laesser, B. E., Hardaker, A., Riddoch, N., Marcoux, M., and Lusseau, D. (2013). Dredging

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:597:(2011). Measurement of underwater noise arising from marine aggregate dredging operations. Marine

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:597:Royal Haskoning (2007a). Tees Maintenance Dredging Baseline Document. May 2007.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:598:Royal HaskoningDHV (2017a). Tees Maintenance Dredging Annual Review 2016.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:598:Royal HaskoningDHV (2018). Tees Maintenance Dredging Annual Review 2017.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:598:Royal HaskoningDHV (2019a). Tees Maintenance Dredging Annual Review 2018.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:598:Royal HaskoningDHV (2020a). Tees Maintenance Dredging Annual Review 2019.

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:599:(2011). The measurement of underwater noise radiated by dredging vessels during aggregate extraction

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:600:F. (2014). A review of impacts of marine dredging activities on marine mammals. – ICES Journal of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:600:WODA (2013). Technical Guidance on: Underwater Sound in Relation to Dredging. World Organisation of

MLA_2020_00507-PC1084_RHD-ZZ-XX-RP-Z-1100_EIA Report_main body-8.pdf:600:Dredging Associations.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:133: o Forty-one-week dredging campaign of the channel, turning area and berthing pockets.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:136:Table 3: Estimated Construction Vessel Movements and Dredge Volumes……………………………………. 6

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:136:Table 5: Construction Phase Dredging Vessel Movements ………………………………………………………….. 8

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:138: BHD Backhoe Dredger

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:138: EGD Enclosed Grab Dredger

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:138: TSHD Trailing Suction Hopper Dredger

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:139:The construction phase requires dredging of the Tees Dock Turning Area the Navigable Channel

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:140: PC1084-RHD-SB-DN-RP-ME-1353_P01_Dredging Study.pdf

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:140: PC1084-RHD-SB-DN-DR-C-1381_P01 Dredging Plan.pdf Concept Design Dredging Plan

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:140: including dredging and

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:142:The proposed South Tees development project and associated dredging areas are shown within Figure

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144: o Dredging of the; turning area, berthing pocket and adjacent approach channel (Figure

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144:The primary activity associated with the construction phase is the dredge campaign which will include

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144:the dredging of a section of the River Tees approach channel and turning area to depths of -11m CD

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144:and a berthing pocket of -15.6m CD (see Figure 1). The dredge campaign will utilise an Enclosed Grab

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144:Dredger (EGD), a Backhoe Dredger (BHD) and a Trailing Suction Hopper Dredger (TSHD) each

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144:supported by two barges. The estimated duration, number of movements and dredge volumes are

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144:Table 3: Estimated Construction Vessel Movements and Dredge Volumes

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144: Total Dredge Volume

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:144: Dredging Phase Phase

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:145:dredging campaign will commence which is scheduled to run for 41 weeks as shown in Table 5 (Phase

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:145:1 for 18 weeks, Phase 2 for 23 weeks). Phase 2 dredging is scheduled to commence approximately 24

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:145:weeks after completion of Phase 1 dredging.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:145:Soft and hard materials will be loaded into barges at the dredge site and then transported to licensed

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:146:Table 5: Construction Phase Dredging Vessel Movements

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:146: THSD Dredging/Disposal 0 0 0 0 0 0 0 66 66 66 66 66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 66 66 66 66 66 66 66 0 0 0 0 0 0 0

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:146:*Phase 2 dredging to commence approximately 24 weeks after completion of Phase 1 dredging.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:150: Including; project and port dredgers, tugs, pilot boats, workboats, PD Ports

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:155:channel dredged to 10.4m.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:161: Dredger

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:169: Initially conceived in 2000. Container terminal dredged to 15m berth pocket.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:170: phase if the dredgers are very large.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:170: Post dredge surveys and Charts to be updated to include new berths and

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:170: promulgation. berthing pockets and in-channel dredge depths.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:170: C&O Hold regular meetings with dredge contractors

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:170: 5 during dredging operations. Issue Notice To

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: 21 Contact Contact berth - Tanker 5.10 35 Grounding Grounding - Workboat (Including Dredgers) 2.07

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: Collision - Workboat (Including Dredgers) ICW Workboat Incident 1.81

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: (Including Dredgers) 4.07 39 Mooring Incident - General Cargo vessel

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: 3 Collision Collision - Tanker ICW Workboat (Including Dredgers) 3.79 Contact - Workboat (Including Dredgers) with Navigation

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: Dredgers) 3.79

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: Dredgers) 3.53 40 Mooring Incident - Workboat (Including Dredgers)

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: Collision - Workboat (Including Dredgers) ICW Project Incident 1.31

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: 23 Contact Contact berth - Workboat (Including Dredgers) 3.16 Incident 1.26

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: 43 Foundering Foundering / Swamping - Workboat (Including Dredgers) 2.38

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:175: Collision - Workboat (Including Dredgers) ICW

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:178:operation phase followed by workboats, driven by an increase in frequency of dredgers in the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: • Project layout, navigation chart and vessel movement / dredge schedule

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: Dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: • 3-week berth dredge will require pilotage. The vessels utilised for the rest

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: of the dredging campaign will not require pilotage. Windfarm/ heavy lift

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: • Dredge to 23-buoy would allow 11m draught vessels to manoeuvre. The

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: existing dredge plan would not allow deep draught vessels to manoeuvre

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: • It was questioned whether the turning circle would be dredged? If the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: need to be dredged. The turning circle is currently dredged to 8.8m. If

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:195: the turning circle is not dredged the existing Teesport regulations will

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:196: the previous dredging campaign undertaken within the river. It was

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:196: sometimes difficult to get the hopper dredgers to move out of the way,

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:196: risk area. This will be particularly important if the dredgers are very large.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:196: on board the dredgers and construction vessels.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:196: within the channel dredging will increase water depths, and existing

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:196: turning circle at its current dredge levels.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:198: • Project layout, navigation chart and vessel movement / dredge

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:198: pipelines), the South Tees Linklines, lies under the dredge area at the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:198: • Potential for collision between construction vessels / dredgers

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:198: • Risk of damaging pipeline during dredging operations.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:199: • Flagged as an additional consideration as proposed dredging in

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:200: • Dredging / construction phase and post-works operation phase to

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:200: Dredging programme discussed.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:200: manageable. Recent experience of dredging showed that VTS

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:200: development site is a SSSI and the dredge comes very close to the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:200: • Channel dredge goes over the top of two pipeline tunnels, depth

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:200: dredging.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:201: • Initially conceived in 2000. Container terminal dredged to 15m

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:201: • Dredger should show RAM shapes / lights.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:201: dredger while loading.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:201: following dredging.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:202: • Hold regular meetings with dredge contractors during dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:202: pilotage would be required for the suction dredger works.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:203: • Project layout, navigation chart and vessel movement / dredge schedule

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:203: dredging in the Tees dock.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:203: (such as channel dredging) cause operational delays (for example at the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:204: • Project layout, navigation chart and vessel movement / dredge schedule

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:204: • No change (risk should decrease following dredging).

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:205: • Svitzer questioned if any of the river would be shut -off during dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:207: Tanker dredging operations. spillage or small gas release

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:207: dredging operations.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:207: vessel / dredging declared but criteria not Moderate damage to property;

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:207: operations / dredging necessarily met; Very No effect of note. Tier 1 may

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:207: Dredgers) Dredgers)

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:208: dredging operations. not necessarily met; Very

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:208: Collision - Tanker vessel / dredging to property; No effect of property; No effect of note.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:208: ICW General General Cargo dredging operations. declared but criteria not within site; Adverse

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:209: Cargo Vessel vessel / dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:209: Dredgers) necessarily met; Very Adverse regional publicity.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:209: Dredgers) and disembarkation

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:209: ICW Project dredging operations. not necessarily met; Very Adverse international publicity.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:209: General vessel / dredging to property; No effect of property; No effect of note.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: (Including Dredgers)

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: Dredgers) collides with

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: 10 River Collision vessel / dredging be declared but criteria Tier 1 may be declared but 2 1 1 1 5.0 3 3 1 1 4.0 4.07

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: Dredgers) Dredgers)

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: vessel / dredging to property; No effect of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: (Including Dredgers) operational (oil) spill with little

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: Dredgers) collides with a effect on environmental

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: Workboat vessel / dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: Dredgers) note. Tier 1 may be Tier 1 may be declared but

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:210: 12 River Collision Dredgers) control failure. Reduced 2 2 1 1 2.0 4 3 1 2 1.0 2.24

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:211: vessel / dredging property; No effect of property; No effect of note.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:211: Collision - Recreational dredging operations.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:212: dredging operations. Fire services with ensuing loss

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:212: channel dredging operations. Fire services with ensuing loss

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:212: Dredgers) property; No effect of note.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:212: 18 River Contact Dredgers) Reduced visibility. Result declared but criteria not 2 1 1 1 4.0 1 2 1 1 2.0 1.67

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:212: Buoy dredging operations. Fire services with ensuing loss

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:213: channel dredging operations. Fire services with ensuing loss

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:213: dredging operations. Fire

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:213: dredging operations. Fire Very short-term disruption prolonged restrictions, major

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:214: dredging operations. Fire suspension of commercial

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:214: 23 River Contact Workboat Dredgers) 1 2 1 1 5.0 2 2 1 1 4.0 3.16

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:214: Dredgers) berth

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:214: dredging operations. Fire short-term disruption to services with ensuing loss of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:214: dredging operations. Fire term loss of revenue including

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:215: dredging operations. Fire short-term disruption to services with ensuing loss of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:215: dredging operations. Fire prolonged restrictions, major

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:215: dredging operations. Fire prolonged restrictions, major

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:216: alongside Dredgers) note. Tier 1 may be

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:216: dredging operations. Fire services with ensuing loss of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:216: Dredgers) berth services with ensuing loss

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:216: dredging operations. Fire services with ensuing loss revenue including minor

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:216: Vessel berth dredging operations. Fire services with ensuing loss of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:217: dredging operations.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:217: dredging operations.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:217: dredging operations. Fire

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:218: dredging operations. Fire prolonged restrictions, and/or

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:218: (Including Dredgers) of avoiding action with declared but criteria not criteria not necessarily met;

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:218: Dredgers) runs aground 3rd party vessel / necessarily met; Very Very short-term disruption to

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:218: dredging operations. Fire short-term disruption to services with ensuing loss of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:218: dredging operations. Fire prolonged restrictions, and/or

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:219: dredging operations. Fire short-term disruption to services with ensuing loss of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:220: Incident - Dredgers) is effect of note. Tier 1 may Minor damage to property; No

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:220: Dredgers) from its short-term disruption to necessarily met; Very short-

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:221: Dredgers) effect of note. Tier 1 may

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:221: (Including vessel / dredging be declared but criteria not

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:221: Dredgers) operations. Excessive necessarily met; Very short-

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:221: swamped by a vessel / dredging be declared but criteria not

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:239: another Tanker party vessel / dredging national support. Chemical spillage or small

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:239: General Cargo General Cargo Vessel party vessel / dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:240: party vessel / dredging injuries or single fatality; Moderate damage

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:240: operations / dredging to property; No effect of note. Tier 1 may be

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:240: (Including Dredgers) be declared but criteria not

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:240: Dredgers) necessarily met; Very short-

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:240: Project Cargo move party vessel / dredging criteria not necessarily met; gas release (COMAH); Adverse international

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:240: party vessel / dredging injuries or single fatality; Moderate damage

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:241: party vessel / dredging may be declared but criteria

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:241: party vessel / dredging Very minor damage to

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:241: (Including Dredgers) necessarily met; Adverse regional publicity.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:241: Dredgers) Temporary suspension of commercial

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:241: Vessel ICW party vessel / dredging criteria not necessarily met; Adverse international publicity. Long-term

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: Collision - party vessel / dredging injuries or single fatality; Moderate damage

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: (Including Dredgers) collides Result of avoiding action note. Tier 1 may be

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: 10 River Collision Dredgers) ICW with another with 3rd party vessel / declared but criteria not 2 1 1 1 5.0 3 3 1 1 4.0 4.07

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: Workboat Workboat (Including dredging operations. Traffic necessarily met; Very short-

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: (Including Dredgers) control failure. Reduced term disruption to services

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: Dredgers) visibility. Fire and explosion. with ensuing loss of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: Workboat party vessel / dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: Dredgers) collides effect of note. Tier 1 may criteria reached. Small operational (oil) spill

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:242: Dredgers) ICW failure. Reduced visibility.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:243: Workboat Workboat (Including dredging operations. Traffic

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:243: (Including Dredgers) collides control failure. Reduced

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:243: Dredgers) ICW with a Recreational visibility. Sailing vessel

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:243: Collision - party vessel / dredging injury; Minor damage to injuries or single fatality; Moderate damage

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:243: party vessel / dredging injury; Very minor damage

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:244: dredging operations. Fire

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:244: dredging operations. Fire

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:244: (Including (Including Dredgers) Minor damage to property; No effect of note.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:244: 18 River Contact Dredgers) contacts a Tier 1 may be declared but criteria not 2 1 1 1 4.0 1 2 1 1 2.0 1.67

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:244: dredging operations. Fire to services with ensuing loss

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:245: dredging operations. Fire

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:245: Buoy dredging operations. Fire term disruption to services

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:245: dredging operations. Fire Very short-term disruption restrictions, major disruption to commercial

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:246: dredging operations. Fire

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:246: 23 River Contact (Including Dredgers) Result of avoiding action may be declared but criteria 1 2 1 1 5.0 2 2 1 1 4.0 3.16

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:246: Dredgers) disruption to services with ensuing loss of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:246: dredging operations. Fire short-term disruption to

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:246: dredging operations. Fire including minor disruption to commercial

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:247: dredging operations. Fire Very short-term disruption services with ensuing loss of revenue.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:247: dredging operations. Fire Very short-term disruption

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:247: dredging operations. Fire Very short-term disruption

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:248: berth - (Including Dredgers) may be declared but criteria

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:248: dredging operations. Fire with ensuing loss of revenue.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:248: Dredgers) services with ensuing loss of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:248: dredging operations. Fire

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:248: Vessel dredging operations. Fire term disruption to services with ensuing loss of revenue.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:249: dredging operations. inspection.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:249: dredging operations. inspection.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:249: dredging operations. Fire operations, prolonged restrictions, and/or

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:250: dredging operations. Fire

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:250: 35 River Grounding (Including Dredgers) Result of avoiding action note. Tier 1 may be declared but criteria not 1 1 1 1 5.0 2 3 1 1 4.0 2.07

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:250: Dredgers) necessarily met; Very short-

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:250: dredging operations. Fire services with ensuing loss of revenue.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:250: dredging operations. Fire

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:251: dredging operations. Fire services with ensuing loss of revenue.

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:252: Incident - (Including Dredgers) keeping. Extreme weather. effect of note. Tier 1 may

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:252: Dredgers) mooring vessel moving in the port term disruption to services

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:253: Swamping - (Including Dredgers) / PEC holder error. Result of fatality; Moderate damage to property; No

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:253: (Including swamped by a party vessel / dredging criteria not necessarily met; Very short-term

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:253: Dredgers) passing vessel operations. Excessive speed. disruption to services with ensuing loss of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:253: party vessel / dredging criteria not necessarily met; Very short-term

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:271: substation), capital dredging (to deepen the northern half of the Tees Dock turning circle, a section

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:271: of the existing approach channel and to create a berth pocket), offshore disposal of dredged

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:272: Turning Area Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:280: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:282: Proposed Dredge and Excavation Envelope

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:286: the 110 employees, 10 would be associated with offshore dredging and would therefore not travel

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:287:Dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:287:Dredging 20 4 By sea 0 0 0 0

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:350: • capital dredging (to locally deepen the Tees Dock turning circle and approach channel and to create

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:350: • offshore disposal of dredged sediments; and,

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387:Table A2 Output of WFD scoping for activity C2 Capital dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387:Could significantly impact the hydromorphology of any Yes, capital dredging could potentially alter hydromorphological parameters in the water

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387: The area to be impacted by dredging equates to 350,000m2 (0.32km2) which when

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387:Is within 500m of any higher sensitivity habitat and consideration of the type of habitat to be disturbed/removed by the capital dredge is

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387:outside the estuary but could delay or prevent fish There is the possibility of sediment plumes during the dredging works. Possibility of

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387:entering it or could affect fish migrating through the underwater noise during dredging impacting on fish is scoped out due to evidence provided

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387:Could impact on normal fish behaviour like movement, only) less than 20m from the dredger. It is considered unlikely that fish would remain within the

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387: Regular maintenance dredging undertaken within the proposed dredge footprint on a year-

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:387: the risk of direct uptake of eggs during the capital dredge (See Section 13).

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:388: There is the possibility of sediment plumes during the dredging works

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:399:Table B2 Completed Scoping Tables for Activity: C2 Capital dredging

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:399: Qualitative status Quantitative Dependent Surface Water Body No Capital dredging would not impact on

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:399: Chemical Chemical Dependent Surface Water Body No Capital dredging would not impact on

MLA_2020_00507-PC1084-RHD-ZZ-XX-RP-Z-1100_EIA Report_Appendices_Part2-4.pdf:400: Supporting elements Prevent and limit objectives No Capital dredging would not impact on

MLA_2020_00507-APPLICATION-FORM.pdf:2:In summary, the proposed scheme comprises demolition, capital dredging, offshore

MLA_2020_00507-APPLICATION-FORM.pdf:2:disposal of dredged material, placement of rock in the berth pocket and construction

MLA_2020_00507-APPLICATION-FORM.pdf:9:process for dredging?

MLA_2020_00507-APPLICATION-FORM.pdf:9:The accelerated licensing process applies to certain types of small-scale low-risk dredging activity.

MLA_2020_00507-APPLICATION-FORM.pdf:10: Dredging at RiverA. Create one site for RiverA and add dredging as an activity.

MLA_2020_00507-APPLICATION-FORM.pdf:10: Dredging and quay wall improvements at RiverA. Create 2 locations: one for the

MLA_2020_00507-APPLICATION-FORM.pdf:10: dredging in front of the new quay area and one for the quay wall improvements.

MLA_2020_00507-APPLICATION-FORM.pdf:10: Dredging at RiverA and removal of large concrete block within the dredge area.

MLA_2020_00507-APPLICATION-FORM.pdf:10: dredging.

MLA_2020_00507-APPLICATION-FORM.pdf:10:Disposal of dredged TEES BAY C Disposal of dredged

MLA_2020_00507-APPLICATION-FORM.pdf:11:Channel and berth pocket - capital dredge

MLA_2020_00507-APPLICATION-FORM.pdf:11:Capital dredging - Channel and berth Navigational dredging

MLA_2020_00507-APPLICATION-FORM.pdf:11:TEES BAY C - Disposal of dredged material from Phase 2

MLA_2020_00507-APPLICATION-FORM.pdf:12:Disposal of dredged material

MLA_2020_00507-APPLICATION-FORM.pdf:12:Disposal of dredged material from Phase 2

MLA_2020_00507-APPLICATION-FORM.pdf:12:The marine sediments to be dredged as part of Phase 2 of the proposed scheme

MLA_2020_00507-APPLICATION-FORM.pdf:12:The dredging vessels and barges would transit to the disposal site where the dredged

MLA_2020_00507-APPLICATION-FORM.pdf:12:material would be deposited before transiting back to the dredge area. Dredging and

MLA_2020_00507-APPLICATION-FORM.pdf:13:The programme for the dredge and disposal activity is dependent on the equipment to

MLA_2020_00507-APPLICATION-FORM.pdf:13:that the dredge and disposal activity would take approximately five months. Dredging

MLA_2020_00507-APPLICATION-FORM.pdf:13:offshore disposal of dredged material (see Section 26 of the EIA Report). The disposal of

MLA_2020_00507-APPLICATION-FORM.pdf:13:dredged material is predicted to have a negligible impact on fisheries, marine ecology

MLA_2020_00507-APPLICATION-FORM.pdf:13:Disposal of dredged material

MLA_2020_00507-APPLICATION-FORM.pdf:14: dredg

MLA_2020_00507-APPLICATION-FORM.pdf:14: dredg

MLA_2020_00507-APPLICATION-FORM.pdf:14:Dredge details

MLA_2020_00507-APPLICATION-FORM.pdf:14:You should provide details of the dredge. This should include the methodology and location. If this has already been

MLA_2020_00507-APPLICATION-FORM.pdf:14:The details of the proposed dredge are outlined in the dredge activity. In summary, it is

MLA_2020_00507-APPLICATION-FORM.pdf:14:proposed that the dredge is undertaken using a combination of trailing suction hopper

MLA_2020_00507-APPLICATION-FORM.pdf:14:dredger and a backhoe dredger.

MLA_2020_00507-APPLICATION-FORM.pdf:14:Has the dredged material been analysed?

MLA_2020_00507-APPLICATION-FORM.pdf:15:The disposal of dredged material to sea should be considered a last resort. You should provide details of alternatives

MLA_2020_00507-APPLICATION-FORM.pdf:17:Channel and berth pocket - capital dredge - Capital dredging - channel and berth pocket

MLA_2020_00507-APPLICATION-FORM.pdf:17:Dredging

MLA_2020_00507-APPLICATION-FORM.pdf:17:Navigational dredging (capital)

MLA_2020_00507-APPLICATION-FORM.pdf:17:Capital dredging - channel and berth pocket

MLA_2020_00507-APPLICATION-FORM.pdf:17:Capital dredging is proposed within parts of the existing navigation channel, and within

MLA_2020_00507-APPLICATION-FORM.pdf:17:areas not currently subject to maintenance dredging to create a berth pocket. The total

MLA_2020_00507-APPLICATION-FORM.pdf:17:dredge volume for marine sediments in Phase 2 is predicted to be approximately

MLA_2020_00507-APPLICATION-FORM.pdf:17:980,000m3. The berth pocket is proposed to be dredged to 15.6m bCD, whilst all other

MLA_2020_00507-APPLICATION-FORM.pdf:17:areas are to be dredged to 11m bCD.

MLA_2020_00507-APPLICATION-FORM.pdf:18:It is anticipated that dredging will be undertaken using a combination of a Trailing

MLA_2020_00507-APPLICATION-FORM.pdf:18:Suction Hopper Dredger (TSHD) and a backhoe dredger. It is envisaged that up to three

MLA_2020_00507-APPLICATION-FORM.pdf:18:barges will be required to support with the transport of sediment dredged using the

MLA_2020_00507-APPLICATION-FORM.pdf:18:backhoe dredger to the offshore disposal site.

MLA_2020_00507-APPLICATION-FORM.pdf:18:For the purposes of the EIA, it has been assumed that the dredge and disposal activity

MLA_2020_00507-APPLICATION-FORM.pdf:18:would take approximately five months. Dredging is proposed to be undertaken 24

MLA_2020_00507-APPLICATION-FORM.pdf:18:hours a day, seven days a week. The specific months when dredging is to take place is

MLA_2020_00507-APPLICATION-FORM.pdf:18:Navigational dredging (capital)

MLA_2020_00507-APPLICATION-FORM.pdf:19: dredging

MLA_2020_00507-APPLICATION-FORM.pdf:19: Specific 1.9 Dredge 5

MLA_2020_00507-APPLICATION-FORM.pdf:19: below be dredged

MLA_2020_00507-APPLICATION-FORM.pdf:19: dredging Hopper

MLA_2020_00507-APPLICATION-FORM.pdf:19: Specific 1.9 Dredge 11

MLA_2020_00507-APPLICATION-FORM.pdf:19: below be dredged

MLA_2020_00507-APPLICATION-FORM.pdf:19: dredging

MLA_2020_00507-APPLICATION-FORM.pdf:19: Specific 1.7 Dredge 15.6

MLA_2020_00507-APPLICATION-FORM.pdf:19: below be dredged

MLA_2020_00507-APPLICATION-FORM.pdf:20:dredged per campaign

MLA_2020_00507-APPLICATION-FORM.pdf:20:inform the impact assessment. Sediment quality data from the proposed dredge

MLA_2020_00507-APPLICATION-FORM.pdf:20:The dredged material is proposed to be deposited offshore within the Tees Bay C

MLA_2020_00507-APPLICATION-FORM.pdf:21:as potentially destabilising the quay wall. The berth pocket would need to dredged to a

MLA_2020_00507-APPLICATION-FORM.pdf:21:The rock blanket would be installed following completion of the berth pocket dredge. It

MLA_2020_00507-Licence Document (Marine)-14.pdf:5:In summary, the proposed scheme comprises demolition, capital dredging, offshore

MLA_2020_00507-Licence Document (Marine)-14.pdf:5:disposal of dredged material, placement of rock in the berth pocket and construction

MLA_2020_00507-Licence Document (Marine)-14.pdf:6:Activity 1.1 - Disposal of dredged material from Phase 2

MLA_2020_00507-Licence Document (Marine)-14.pdf:6:Activity type Disposal of dredged material

MLA_2020_00507-Licence Document (Marine)-14.pdf:6:Description Marine sediments to be dredged as part of Phase 2 of the

MLA_2020_00507-Licence Document (Marine)-14.pdf:6: site. A maximum amount of 1,078,000m3 of dredged

MLA_2020_00507-Licence Document (Marine)-14.pdf:6: dredge

MLA_2020_00507-Licence Document (Marine)-14.pdf:6: dredge

MLA_2020_00507-Licence Document (Marine)-14.pdf:6:Methodology Dredging will be undertaken using a combination of trailing

MLA_2020_00507-Licence Document (Marine)-14.pdf:6: suction hopper dredger and backhoe dredging. Dredging

MLA_2020_00507-Licence Document (Marine)-14.pdf:6:Programme of works Dredging to be undertaken 24 hours a day, seven days a

MLA_2020_00507-Licence Document (Marine)-14.pdf:7:Site 3 - Channel and berth pocket - capital dredge

MLA_2020_00507-Licence Document (Marine)-14.pdf:8:Activity 3.1 - Capital dredging - channel and berth pocket

MLA_2020_00507-Licence Document (Marine)-14.pdf:8:Activity type Navigational dredging (capital)

MLA_2020_00507-Licence Document (Marine)-14.pdf:8:Description Capital dredging within parts of the existing navigation

MLA_2020_00507-Licence Document (Marine)-14.pdf:8: maintenance dredging to create a berth pocket. The total

MLA_2020_00507-Licence Document (Marine)-14.pdf:8: dredge volume for marine sediments in Phase 2 will be

MLA_2020_00507-Licence Document (Marine)-14.pdf:8: dredged to a maximum amount of 1,078,000m3. The berth

MLA_2020_00507-Licence Document (Marine)-14.pdf:8: pocket will be dredged to 15.6m bCD, whilst all other areas

MLA_2020_00507-Licence Document (Marine)-14.pdf:8: are to be dredged to 11m bCD.

MLA_2020_00507-Licence Document (Marine)-14.pdf:8:Methodology Dredging will be undertaken using a combination of a

MLA_2020_00507-Licence Document (Marine)-14.pdf:8: Trailing Suction Hopper Dredger (TSHD) and a backhoe

MLA_2020_00507-Licence Document (Marine)-14.pdf:8: dredger. Up to three barges will be required to support

MLA_2020_00507-Licence Document (Marine)-14.pdf:8: with the transport of sediment dredged using the backhoe

MLA_2020_00507-Licence Document (Marine)-14.pdf:8: dredger to the offshore disposal site.

MLA_2020_00507-Licence Document (Marine)-14.pdf:8:Programme of works Dredge and disposal activity will take approximately five

MLA_2020_00507-Licence Document (Marine)-14.pdf:8: months. Dredging to be undertaken 24 hours a day, seven

MLA_2020_00507-Licence Document (Marine)-14.pdf:8: berth pocket will need to dredged to a greater depth initially

MLA_2020_00507-Licence Document (Marine)-14.pdf:9: the berth pocket dredge. It is anticipated that installation of

MLA_2020_00507-Licence Document (Marine)-14.pdf:11:Where a licensed activity comprises dredging or the disposal of dredged material,

MLA_2020_00507-Licence Document (Marine)-14.pdf:11:the total quantity of material authorised to be dredged or disposed of in any given

MLA_2020_00507-Licence Document (Marine)-14.pdf:11:For each time period, the actual quantity dredged or disposed of shall be calculated by

MLA_2020_00507-Licence Document (Marine)-14.pdf:11:adding the quantity of material dredged or disposed of during that time period under

MLA_2020_00507-Licence Document (Marine)-14.pdf:11:this version of this licence to that dredged or disposed of under any previous version

MLA_2020_00507-Licence Document (Marine)-14.pdf:13:5.2.5 The dredging activities approved by this licence may not commence until such a time as a scheme of monitoring has

MLA_2020_00507-Licence Document (Marine)-14.pdf:13: for written confirmation prior to dredging works commencing.

MLA_2020_00507-Licence Document (Marine)-14.pdf:13: To monitor impacts to water quality during dredging.

MLA_2020_00507-Licence Document (Marine)-14.pdf:13:5.2.6 No dredging not covered under statutory harbour authority powers can be conducted during the period from 1st July to

MLA_2020_00507-Licence Document (Marine)-14.pdf:13: reached that only 1 dredge campaign is taking place at this time. No other dredging will take place on the River Tees

MLA_2020_00507-Licence Document (Marine)-14.pdf:13:5.2.7 If permission is granted by the MMO to undertake dredging operation during 1st July to 31st August (inclusive),

MLA_2020_00507-Licence Document (Marine)-14.pdf:13: dissolved oxygen levels must be monitored prior to the dredging activity, as a minimum, monitored every hour during the

MLA_2020_00507-Licence Document (Marine)-14.pdf:13: dredging activity. If a drop of 1mg/l of dissolved oxygen is observed, than the dredging activity must temporarily pause

MLA_2020_00507-Licence Document (Marine)-14.pdf:14:5.2.8 Dredging must be limited to working on one side of the estuary channel at a time.

MLA_2020_00507-Licence Document (Marine)-14.pdf:14:5.2.9 Pre and post bathymetric dredge surveys must be submitted, together with an interpretation of the difference between

MLA_2020_00507-Licence Document (Marine)-14.pdf:14: the survey results and a volume calculation within 4 weeks of completion of each dredge campaign.

MLA_2020_00507-Licence Document (Marine)-14.pdf:14: the proposed start date of capital dredging and disposal for South Bank Quay and, subject to the outcome of that

MLA_2020_00507-Licence Document (Marine)-14.pdf:14: of capital dredging and disposal:

MLA_2020_00507-Licence Document (Marine)-14.pdf:14: • Written confirmation that disposal of dredged material from the South Bank Quay project will not temporally coincide

MLA_2020_00507-Licence Document (Marine)-14.pdf:14: with that arising from the NGCT project (meaning that no single phase of the capital dredging and disposal for the two

MLA_2020_00507-Licence Document (Marine)-14.pdf:15: • Written confirmation that the total (aggregated) quantity of dredged material to be disposed would not exceed 1.34

MLA_2020_00507-Licence Document (Marine)-14.pdf:15: million m3 per month (the peak monthly volume assessed within the EIA), should it be apparent that the dredging and

MLA_2020_00507-Licence Document (Marine)-14.pdf:15: disposal from South Bank Quay could temporally coincide (meaning that any phase of the capital dredging and disposal

MLA_2020_00507-Licence Document (Marine)-14.pdf:15: dredging and disposal programmes for NGCT and the South Bank Quay project could (i) temporally coincide and (ii) the

MLA_2020_00507-Licence Document (Marine)-14.pdf:15: total (aggregated) quantity of dredged material to be disposed could exceed 1.34 million m3 per month, with a detailed

MLA_2020_00507-Licence Document (Marine)-14.pdf:15: programme of environmental monitoring to verify the predicted cumulative environmental impacts of disposal of dredged

MLA_2020_00507-Returns-15.pdf:2:Open The dredging activities approved by this licence may not

MLA_2020_00507-Returns-15.pdf:2: dredging works commencing.

MLA_2020_00507-Returns-15.pdf:3: dredging operation during 1st July to 31st August

MLA_2020_00507-Returns-15.pdf:3: prior to the dredging activity, as a minimum, monitored

MLA_2020_00507-Returns-15.pdf:3: every hour during the dredging activity. If a drop of 1mg/

MLA_2020_00507-Returns-15.pdf:3: l of dissolved oxygen is observed, than the dredging

MLA_2020_00507-Returns-15.pdf:3: dredge campaign

MLA_2020_00507-Returns-15.pdf:3:Open Open Pre and post bathymetric dredge surveys must be

MLA_2020_00507-Returns-15.pdf:3: R8.2 Within 4 weeks of calculation within 4 weeks of completion of each dredge

MLA_2020_00507-Returns-15.pdf:3: dredge campaign

MLA_2020_00507-Returns-15.pdf:3: dredge campaign

MLA_2020_00507-Returns-15.pdf:4:MLA/2020/00507/R11 In advance of July of any Dredging

MLA_2020_00507-Returns-15.pdf:4:Open No dredging not covered under statutory harbour

MLA_2020_00507-Returns-15.pdf:4: dredge campaign is taking place at this time. No other

MLA_2020_00507-Returns-15.pdf:4: dredging will take place on the River Tees during this

MLA_2020_00507-Returns-15.pdf:5:MLA/2020/00507/R12 At least 3 months in Dredge Disposal

MLA_2020_00507-Returns-15.pdf:5: dredging and disposal

MLA_2020_00507-Returns-15.pdf:5: the proposed start date of capital dredging and disposal

MLA_2020_00507-Returns-15.pdf:5: date of capital dredging and disposal:

MLA_2020_00507-Returns-15.pdf:5: • Written confirmation that disposal of dredged material

MLA_2020_00507-Returns-15.pdf:5: (meaning that no single phase of the capital dredging

MLA_2020_00507-Returns-15.pdf:5: of dredged material to be disposed would not exceed

MLA_2020_00507-Returns-15.pdf:5: dredging and disposal from South Bank Quay could

MLA_2020_00507-Returns-15.pdf:5: capital dredging and disposal for the two projects could

MLA_2020_00507-Returns-15.pdf:5: should it be apparent that the dredging and disposal

MLA_2020_00507-Returns-15.pdf:5: (aggregated) quantity of dredged material to be disposed

MLA_2020_00507-Returns-15.pdf:5: of dredged material.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:3:3.6 Capital dredging of marine sediments and excavation of soils / landside materials within

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:3:3.8 Disposal of dredged material 17

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:7:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL 470

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:7:26.2 Modelling the dispersion and deposition of capital dredged material and effect on water

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:8:28.5 Detailed assessment – C2 Capital dredging 522

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:9:In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of dredged

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:9:dredge and disposal activities).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:9: which covers the potential zone of influence of both the dredge and disposal activities.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:10: P roposedDredg

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:13:(90m wide) and the associated dredging requirements. Consultation with PD Ports’ Harbour Master during

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:15:along the river bank at South Bank (including an electrical substation), capital dredging (to deepen the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:15:berth pocket), offshore disposal of dredged sediments and construction and operation of a new quay (to be

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:16:would all be removed to avoid issues arising during the subsequent capital dredge. It is proposed that the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:17: BERTH POCKET DREDGING AREA BERTH POCKET DREDGING AREA

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:17: CHANNEL DREDGING AREA CHANNEL DREDGING AREA

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:17: DREDGING AREA

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:22:3.6 Capital dredging of marine sediments and excavation of soils /

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:22:Drawing PC1084-RHD-SB-EN-DR-EV-1113 below shows the proposed dredge footprint. For the purposes

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:22:of this EIA, a dredge envelope has been assessed (Figure 1.1). As shown on the drawing, dredging is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:22:dredging to create a berth pocket. The Tees Dock turning circle and areas of navigation channel are

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:22:dredged to a depth of 15.6m bCD (maintained at a depth of 13.0m bCD). The berth pocket is proposed to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:22:be dredged to 15.6m bCD initially in order to allow for the installation of a 2m thick rock blanket (discussed

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:22:area that is currently partly land and estuarine. There would, therefore, be a requirement for dredging of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:22:berth pocket. The proposed scheme (and consequently the dredging requirements) has been designed to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:22:A summary of the proposed design levels and dredge volumes for marine sediments is detailed in Section

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:22:3.6.1 Volume of marine sediments to be dredged

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:22:The total dredge volume for marine sediments is predicted to be approximately 1,800,000m3. As detailed

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:22:in Table 3.2, the dredge is proposed to be undertaken in two phases to match the anticipated phased

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:22:construction of the quay however the assessment undertaken within this EIA assumes that the dredging is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:22:dredged material is anticipated to comprise geological material (i.e. mudstone) (approximately 340,000m3),

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:22:would be dredged to 11m bCD with the exception of the berth pocket which will be dredged to 15.6m bCD.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:23: AREA DREDGED

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:23: DREDGE TO -11.0mCD

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:23: DREDGE TO -15.6mCD

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:23: DREDGED TO -11mCD MUDFLATS

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:23: AREA DREDGED

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:23: AREA DREDGED

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:23: DREDGED TO -11mCD

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:23: PHASE 1 UPSTREAM AREA DREDGED

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:23: AREA DREDGED

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:23: DREDGING PLAN

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:24:Table 3.2 Proposed volumes of marine sediments to be dredged (excluding over-dredge volumes)

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:24: Material classification Phase 1 dredge volume (m3) Phase 2 dredge volume (m3) Total dredge volume (m3)

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:24:It is anticipated that dredging will be undertaken using a combination of a Trailing Suction Hopper Dredger

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:24:(TSHD) and a backhoe dredger. It is envisaged that up to three barges will be required to support with the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:24:transport of sediment dredged using the backhoe dredger to the offshore disposal site. It is assumed that

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:24:a TSHD would be used to dredge soft material and it has been assumed for the purposes of assessment

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:24:It is expected that the backhoe dredger would be used for both the near surface soft material and the hard

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:24:material (mudstone). For the purposes of the assessment, it has been assumed that the dredge process

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:24: • Removal of soft material above -5m bCD using a backhoe dredger (approximately four weeks).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:24: • Removal of soft material below -5m bCD using a backhoe dredger and a TSHD (approximately four

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:24: • Removal of soft material in the turning circle using a backhoe dredger and a TSHD (approximately

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:24: • Removal of hard material using a backhoe dredger (approximately 10 weeks).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:24:destabilising the quay wall. The implication is that the berth pocket would need to dredged to a greater

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:25:3.8 Disposal of dredged material

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:25:There are two active disposal sites that potentially could accept dredged material from the Tees estuary:

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:25:capital dredged material but has received quantities of maintenance material in some years. Tees Bay A

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:25:For the purposes of assessment and the marine licence application, it has been assumed that all dredged

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:25:The Phase 1 quay wall would extend 90m either side of the berth pocket to retain the dredged slopes back

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:25:assessed the worst-case scenario of building the quay and dredging the channel in one phase. However,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:25:and capital dredging (see Drawing PC1084-RHD-SB-DN-DR-C-1388). The rock blanket would be installed

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:25:following completion of the dredge.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:26: DREDGE TO Newcastle upon Tyne, NE1 4EE

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:26: DREDGE LEVEL.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:26: CLAY DREDGE LEVEL CLAY

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:27: This assumes all dredging plant

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:27: Capital dredging 2 months 3 months 5 months are working at full capacity

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:27:Whilst capital dredging is taking place, there is potential for PDT to be undertaking maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:27: • Dredging plant

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:27: o Backhoe dredger

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:27: o Barges to transport material from the backhoe dredger to the offshore disposal site.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:28:result of capital and maintenance dredging, as well as INNS being introduced or spread from ship ballast

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:30:known to cross underneath the Tees estuary. As dredging is not proposed to be undertaken above the pipe

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:32:Alternative dredging plant

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:32:There is likely to be a requirement to utilise a number of different types of dredger depending on the nature

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:32:of the material being dredged. Therefore, for different parts of the dredging it will be necessary to use a

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:32:TSHD or backhoe. The environmental implications of using these dredgers have been assessed and no

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:33:Approach channel and berthing pocket dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:33:The proposed dredged depth in the navigation channel has been chosen to maximise the tidal window to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:33:3.15.3 Alternative uses of dredged material

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:33:uses for the dredged arisings, with disposal at sea being the least preferred option (in accordance with the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:33:reclamation projects. The alternative options that have been considered for the disposal of dredged material

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:33:The proposed dredge is predicted to give rise to boulder clay, sand and silts. Sand and boulder clay could

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:33:STDC is not aware of any construction projects within the local area that require the use of dredged material,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:33:continue to remain open to the re-use of dredged material within construction projects.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:33:(possibly doubling as little tern nesting islands) could be created using the dredged material from Hartlepool

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:33:suitable locations for the re-use of dredged sediment; three were located adjacent to the South Gare

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:34:scheme by beneficially re-using dredged material would be welcomed. It is considered that such beneficial

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:34:re-use of dredged material could also represent a possible option for the South Bank scheme.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:34:STDC will continue to investigate the option of creating bird islands using dredged material, possibly linking

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:34:Tees (or any beneficial use of dredged material in the marine environment) would require a separate marine

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:34:licence application to deposit dredged material, or potentially a variation to the marine licence for the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:35: • Dredging;

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:35: • Capital dredging (removal activity).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:35: • Offshore disposal of dredged material (deposit activity).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:35:The proposed dredge footprint is located predominantly within an area subject to maintenance dredging by

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:35:of the existing maintenance dredge footprint, and therefore a variation to the licence held by PDT is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:35:envisaged to increase the source area of maintenance dredged material following construction of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:38:Options for the disposal of waste (i.e. the material to be dredged from the approach channel, turning circle

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:38:investigated in accordance with the waste hierarchy. Possible alternative options for dredged material have

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:39: • Policy NE-DD-3 – proposals for the disposal of dredged material must demonstrate that they have

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:52: Proposals for the disposal of dredged material must demonstrate that they have been

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:52: assessed against the waste hierarchy. Where there is the need to identify new dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:53: The Environment Agency’s response to RCBC during scoping consultation listed three Impacts of dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:53: • Impacts of dredging on the tidal prism of the estuary, and therefore the extent addressed in Section

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:53:Agency (letter • In addition to the initial capital dredge, consideration of the impacts associated impacts associated

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:53:dated 14th August with the continued maintenance of the dredged area in future years should be with maintenance

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:53:2020) assessed too, in terms of the continued impact to fish, as well as water quality. dredging is made in

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:53: • it is likely that dredging activity will need to take into account the protection of Section 6.6.4.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:53: during critical migration periods. This would entail limiting dredging activity to water quality are

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:53:dredging and offshore disposal activities. For this reason, the study area shown in Figure 6.1 has been

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:54:2005 Maintenance dredging baseline document. ABPmer, 2005

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:54: Tees maintenance dredging baseline Royal Haskoning, 2007b Documents the maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:55: 2019a and 2020a) maintenance dredging and disposal for

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:55: QEII Berth Development – Environmental information about maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:55: dredging operations required for this

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:57: Maintenance dredging baseline

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:57: Documents the maintenance dredging material regularly

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:57: Tees maintenance dredging baseline removed from the Tees estuary, and the potential

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:57: document. implications of maintenance dredging and disposal for

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:57:2009 Royal Haskoning, 2009 dredging regimes and materials arising from above and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:57: possible effects from the proposed dredging operations

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:58:In addition, an analysis of historical data, including dredge and disposal volumes and land reclamation from

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:60: predict movement of suspended sediment from the proposed dredging and disposal activities by

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:60: was run for the entire dredging and disposal period under astronomic tidal and daily mean fluvial

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:60:the harbour and marina berths. All of these locations require dredging to maintain a safe navigable depth

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:62:of reaches require maintenance dredging to remove both sands and silts. The volume of sediments dredged

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:62:dredged from the river mouth and navigation approach channels within Tees Bay, with river silts mainly

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:62:dredged from within the berths and river channel further upstream in the Tees estuary.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:62:to allow bypassing of sediment, but observed accumulations upstream, and a 24% reduction in the dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:63:(Newlyn) (7.15m below CD). As a result of training works and deepening by dredging, the current depth at

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:63:the mouth is about double this natural level. Dredging and training works have occurred since the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:63:establishment of the first dredged channel of 4.3m from Middlesbrough Docks to the sea after 1853.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:63:only notable project undertaken since that time has been the dredging and re-strengthening of No.1 Quay

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:63:sediments) which is offset by maintenance dredging and disposal at offshore licenced disposal site Tees

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:63:PDT is required by the Tees and Hartlepool Port Authority Act 1966 to publish dredge depths; the published

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:63:Admiralty Charts show the maximum licensed depths for the channel and berths. A summary of the dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:63:14.1m below CD were originally dredged to a deeper depth.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:63:access. The berth pocket within Tees Dock has been dredged to a depth of 14.5m below CD, with the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:63:general dock area dredged to 10.9m below CD.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:84:induced currents, vessel induced forces and re-suspension by dredging operations. These last two were

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:85: • Marine input: Comparison of the above figures with the present knowledge of the dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:85:Dredging activities

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:85:As part of this responsibility, PDT must maintain the advertised dredge depths within the defined areas

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:85:dredging in the thirteen reaches of the river shown in Figure 6.29 (as well as in berths within the Tees and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:85:within Tees Bay). Maintenance dredging practices have remained unchanged since 2005.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:85: Figure 6.29 Maintenance dredging reaches within the River Tees

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:86:Most dredging within the Tees occurs in the approach channel and low-middle estuary in order to maintain

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:86:access to berth pockets and impounded docks. TSHDs are currently used for the majority of the dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:86:dredgers have active bottom door offloading systems.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:86:PDT also operates its own 11m plough to supplement ongoing suction dredging operations through the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:86:removal of isolated high spots on the riverbed, primarily in frontages or confined areas. Plough dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:86:dredgings requiring disposal to sea.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:86:A summary of the maintenance dredged volumes (m³) by each reach from 2001 to 2019 is provided in Table

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:86:6.15 and shown in Figure 6.30. Data on dredging was obtained from PDT and extends the time series

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:86:originally presented in Royal Haskoning (2008) from 2001 to 2019. No dredging has been required within

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:86:Reach 0 during the reporting period. Note that these data also include maintenance dredging volumes from

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:86: Volume of dredged material

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:86:Figure 6.30 Summary of volumes (m3) dredged and deposited offshore during the period 2001 to 2019

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:86:The total volume of maintenance dredged material has decreased below the average annual volume for the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:86:Over the 19-year period, the average volume maintenance dredged from the Tees reaches is 740,266m3,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:87:Table 6.15 Summary of the total volumes of dredged material disposal (m3) from 2001 to 2019

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:89:Maintenance dredge material (between 2001 and 2018) comprised around 180,000m3 of mud, mostly found

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:89:A review of the dredged sediment quality data is presented in Section 7.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:89:general, Tees Bay A (TY160) is used for the disposal of maintenance dredge arisings while Tees Bay C

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:89:(TY150) is used for capital dredge arisings. Tees Bay B (TY110) and Tees Bay Foreshore (TY170) are

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:89: dredged material. Some 1999, associated with the construction of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:89: 54 42.600N 00 58.600W maintenance dredging has been downstream Ro-Ro berths. Typical annual

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:90:Figure 6.31 Location of offshore maintenance and capital dredge disposal sites

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:90:6.5.2 Capital dredging and offshore disposal of dredged sediments

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:90:Capital dredging is required to: (i) create a berth pocket adjacent to the new quay; (ii) deepen the river

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91:pocket, creating a finished depth of 13.6m below CD. Dredging of the channel and berthing pocket will yield

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91:In total, approximately 1,800,000m3 of material will be dredged from the areas described over an

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91:as ‘soft’ material) and Mercia Mudstone (classed as ‘hard’ material). Dredging will be undertaken using a

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91:Each year, between 25 – 30 million tonnes (wet weight) of dredged marine sediments from ports, harbours

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91:dredged from the proposed scheme will be taken to the Tees Bay C licensed offshore disposal site, some

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91:The capital dredging within the river, using TSHD and BHD, and the disposal activities at the licensed

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91:modelling of the sediment dispersion associated with the dredging and disposal activities, as well as the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91:and run for the entire four month duration covering all proposed dredging and disposal activities. Wave

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91:disturbance effects have been included. The dredging methods, schedule and sediment release settings

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91:movement of dredgers and transport barges (including dredging, sailing, disposal and downtime) such that

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91:sediment releases have been made near continuously throughout the dredging operations (except for

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91:allowed periods of downtime) from along the centre line of the dredged areas, running along the axis of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91:The overall dredging and disposal operations may be considered as four stages in the following sequence:

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91: • Stage 1: BHD working to dredge the upper soft material (above -5m CD) in the berthing pocket and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91: • Stage 2: BHD and TSHD working in parallel to dredge the middle soft material (below -5m CD) in

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91: • Stage 3: BHD working to dredge the bottom hard material in the berthing pocket and river channel

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91: • Stage 4: BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:91:Results from the sediment dispersion modelling are discussed in turn for the dredging and disposal activities.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:92: throughout the entire four-month period covered by the dredging and disposal simulations, but only

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:92: extents of enhancement in SSC from any stage of the dredging or disposal operations during the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:92: relevant stage of the dredging programme. It is important to note that this type of figure does not

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:92: become affected by a plume at some point during the dredging or disposal activities (in some areas

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:92:Dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:92:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:92:end of the dredging transect to the north-eastern end.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:92:Peak concentrations from dredging are always local to the point of disturbance from dredging at the riverbed,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:92:on timing of release with respect to the phase of the tide and location of dredging within the berthing pocket

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:92:release from the south-western corner of the dredging transect during the ebb phase (Plot A) and flood

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:92:phase (Plot D) of the tide when the release is towards the north-eastern end of the dredging transect.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:92:When the dredger is at the south-western end of the transect, the maximum spatial extent of the plume on

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:92:Middlesbrough Dock. When the dredger is at the north-eastern end of the transect, the extent of the plume

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:93:Figure 6.32 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:93:capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:94:Figure 6.33 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:94:capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:95:Figure 6.34 (Plot C) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:95:capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:96:Figure 6.35 (Plot D) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:96:capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:96:In order to determine a maximum ‘zone of influence’ from Stage 1 of the dredging activities, the maximum

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:96:values of enhancement in SSC from any phase of the dredging operations during Stage 1 have been plotted

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:96:release points along the dredging transect at the proposed scheme site. Further upstream and downstream

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:96:of the areas directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a short distance

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:96:from the point of dredging, and at the peripheries below 20mg/l) before merging with low background

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:97:Figure 6.36 Maximum enhanced SSCs arising from dredging activities during Stage 1 of the capital

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:97:dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:97:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:97:time, moving from the south-western end of each of two parallel dredging transects to the north-eastern

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:97:from the two dredger types, as show in Figures 6.37 and 6.38 (Plot A and Plot B show releases from the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:97:south-western and north-eastern ends of the two parallel dredging transects respectively). However, the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:98:Figure 6.37 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 2 of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:98:capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:99:Figure 6.38 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 2 of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:99:capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:99:The maximum ‘zone of influence’ from Stage 2 of the dredging activities is shown in Figure 6.39 (please

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:99:note the earlier caution in interpreting this type of figure). This shows that during Stage 2 of the dredging,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:99:becomes wider; and (iii) at times two plumes are created by the in-parallel dredging activities. Despite these

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:99:release points along the dredging transects at the proposed scheme site. Further upstream and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:99:downstream of the areas directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:99:short distance from the point of dredging, and at the peripheries below 20mg/l) before merging with low

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:100:Figure 6.2 Maximum enhanced SSCs arising from dredging activities during Stage 2 of the capital

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:100:dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:100:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:100:end of the dredging transect to the north-eastern end.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:100:of the dredging transect during the ebb phase (Plot A) and flood phase (Plot B) of the tide. Similar results

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:100:is towards the north-eastern end of the dredging transect. It can be seen that the maximum SSC values

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:100:and the spatial extents of the plume arising from Stage 3 of the dredging are much lower than those

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:100:of dredging is notably lower.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:101:Figure 6.40 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:101:capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:102:Figure 6.41 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:102:capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:103:Figure 6.42 (Plot C) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:103:capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:104:Figure 6.43 (Plot D) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:104:capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:104:The maximum ‘zone of influence’ from Stage 3 of the dredging activities is shown in Figure 6.44 (please

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:104:note the earlier caution in interpreting this type of figure). This shows that during Stage 3 of the dredging,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:104:during both Stages 1 and 2 of the dredging (note the slight plume shown in the mid channel is a remnant of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:104:the Stage 2 dredging, which has not fully dissipated before Stage 3 commences). During Stage 3, the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:105:Figure 6.44 Maximum enhanced SSCs arising from dredging activities during Stage 3 of the capital

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:105:dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:105:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:105:end of each of two parallel dredging transects to the north-eastern end.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:105:Peak concentrations from dredging are always local to the point of disturbance from dredging at the riverbed,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:105:times in the dredging cycle, SSC values can become enhanced by typically 10 to 20mg/l between the point

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:106:Figure 6.45 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 4 of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:106:capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:107:Figure 6.46 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 4 of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:107:capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:107:The maximum ‘zone of influence’ from Stage 4 of the dredging activities is shown in Figure 6.47 (please

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:107:note the earlier caution in interpreting this type of figure). This shows that during Stage 4 of the dredging,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:107:stages, the maximum SSC concentrations remain local to the point of dredging within the turning circle (up

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:107:to a few hundred mg/l). Further upstream and downstream of the areas directly dredged, the SSC

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:107:enhancement drops markedly (typically below 50mg/l a short distance from the point of dredging, and at the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:108:Figure 6.47 Maximum enhanced SSCs arising from dredging activities during Stage 4 of the capital

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:108:dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:108:The sediment plumes that arise from the four stages of the dredging could potentially affect areas of riverbed

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:108:of influence’ from Stages 1 - 4 inclusive of the dredging activities has been plotted in Figure 6.48 for the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:108:that during the predicted four months of dredging, all individual or coalesced plume effects are confined to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:108:Furthermore, all plumes associated with dredging of the berthing pocket and river channel in the vicinity of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:108:whilst all plumes associated with dredging of the turning circle are confined to the left bank (north of centre

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:109:Figure 6.3 Maximum enhanced SSCs (near-bed layer) arising from dredging activities during Stages 1 -

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:109:4 inclusive of the capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:110:Figure 6.49 Maximum enhanced SSCs (near-surface layer) arising from dredging activities during Stages

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:110:1 - 4 inclusive of the capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:110:Sediment suspended within the dredging plumes will fall to the riverbed, either soon after disturbance or

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:110:spillage occurring during the dredging operation (for coarser-grained sediment fractions), or at a point in

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:110:by this deposition. It can be seen that much of the sediment falls to the bed within the dredged areas (from

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:110:where it will be re-dredged to achieve the necessary bed depths), whilst the deposition that occurs in other

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:111:Figure 6.50 Maximum riverbed thickness change due to sediment deposition arising from dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:111:activities during Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:111: would be affected by the zone of influence of the dredging operations].

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:112:appreciable extent, with peak enhancements of between 15 and 85 mg/l during Stage 2 of the dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:112:programme (Figure 6.52). Whilst Stage 1 of the dredging also causes some enhancement in SSC at point

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:112:elevations in SSC drop rapidly after each dredging plume has dispersed, and return to baseline levels at

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:112:points of downtime or between successive dredging stages. There are no significant effects noted at the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:112:water quality sampling points during Stage 3 of the dredging and only negligible effects for a short duration

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:112:a very low value (6mm) throughout the entire dredging programme (Figure 6.53) and in reality some of this

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:112:material will become re-suspended by tidal currents or dredged during maintenance campaigns of the river

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:112:At the mudflat monitoring points, it is only during Stage 4 of the dredging that any discernible effects are

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:112:At the navigation monitoring points on the north bank, it is only during Stage 4 of the dredging that any

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:112:At the navigation monitoring points on the south bank, it is throughout Stages 1 and 2 of the dredging that

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:112:Stages 3 and 4 of the dredging, only negligible effects are noted, equivalent to variations within the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:113:re-suspended by tidal currents or will be removed during maintenance dredging campaigns of the river

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:118:is licensed for the disposal of dredged sediment and is routinely monitored as part of a national programme.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:118:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:118:The above cycle is repeated throughout all disposal events associated with Stage 1 of the dredging,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:119:dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:120:dredging, the following descriptions focus on where particular aspects of subsequent stages differ from the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:120:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:120:TSHD. The pattern of dispersion following discharge of the BHD-dredged material is as described for Stage

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:120:cessation of TSHD discharge) the subsequent BHD-dredged material disposal is commenced at a common

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:121:dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:122:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:123:dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:124:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:125:dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:126:dredging programme has been plotted in Figure 6.64 for the near-bed layer of the water column (please

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:127:inclusive of the capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:128:event during Stage 1 of the capital dredging programme – local scale

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:129:event during Stage 1 of the capital dredging programme – wider scale

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:131:The river dredging and offshore disposal activities will both cause plumes of sediment to form close to the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:131:During dredging, there will be a release of sediment particles from the deliberate physical disturbance to the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:131:riverbed and, more significantly, from overflow when dredged material is loaded into the dredger’s hopper

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:131:(for TSHD) or the transport barge (for BHD). Such releases will be ongoing through each dredging cycle

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:131:until the dredging activity ceases due to downtime (e.g. adverse weather, vessel maintenance) or at

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:131:scheduled breaks between stages of dredging activity. During offshore disposal, a single hopper load will

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:131:Once a plume is generated, the highest SSC values will be recorded at the point of river dredging or offshore

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:131:During some stages of the dredging and disposal activities, most notably when both TSHD and BHD are

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:132:The plume effects arising from the river dredging are characterised by a short-lived localised increase in

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:132:SSC by a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial extent

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:132:and reduction in concentration over following hours. Since the dredging is a near-continuous operation, the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:132:extents during the four different stages. During Stages 1-3 the dredging-related plume effects will be largely

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:132:Dock and Tees Dock. During Stage 4 the dredging-related plume effects will be largely confined to the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:132:and the Oil Terminal. Other than within the dredged areas, sediment deposition on the riverbed will be of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:132:occurs in the river channel or at jetties, it will subsequently be dredged as part of ongoing maintenance

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:132:dredging regimes, whilst material deposited back into the newly dredged areas will be re-dredged during

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:132:Overall, the changes in SSC and sediment deposition arising from the river dredging and offshore disposal

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:133:dredging to the Tees Dock turning circle and approach channel and to create a berth pocket.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:140: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:140: dredging.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:140: deposition will require periodic dredging to maintain the design depths.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:that the increase in mean tidal prism as a result of the new quay’s set-back alignment and dredging of part

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:6.6.4 Maintenance dredging and offshore disposal of dredged sediments

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:In order to provide an estimate of the present annual average maintenance dredging undertaken in the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:the proposed new quay), it can be assumed that the affected area covers approximately half of dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:reach 6 and approximately one-third of dredging reach 5 (these ‘dredging reaches’ are shown in the earlier

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:Between 2001 and 2019 inclusive, the average annual maintenance dredging in reach 5 was 3,585m3 and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:maintenance dredging is evenly located through each dredging reach so that the spatial scaling described

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:maintenance dredging is likely to be due to the low levels of suspended sediment measured in this reach of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:the river. By far the greatest contributions to the overall annual maintenance dredging total come from close

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:to the barrage in dredging reaches 1-3 inclusive or towards the estuary mouth in dredging reaches 8-11

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:inclusive. All non-contaminated material from maintenance dredging is usually taken to the Tees Bay A

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:a requirement for more material to become from this local reach dredged annually. Recognising this, a 10%

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:increase in annual maintenance dredging requirement may be a reasonable assumption recogising the low

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:baseline SSCs in this reach. Even under this scenario, the maintenance dredging from this reach local to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:the new quay will still yield a very low overall contribution to the net annual maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:requirements from the estuary as a whole. Therefore the potential increase in maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:141:dredging and offshore disposal regimes.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:143: Mitigation measures with regard to dredging may be required to manage

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:143: reductions. Such measures would entail limiting dredging to certain

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:143: proposed dredge on water and sediment quality are

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:143: Dredging has the potential to cause negative impacts on the water

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:143: with the proposed dredge are detailed in Section 9

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:143: The proposed dredging plant has been selected

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:143: encountered during the dredge, as well as the plant

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:143: The applicant should consider the (dredging) methodology to be used,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:143: which has been used for previous capital dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:143: the disposal of dredged material and the timing of works.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:143: to be used, disposal of dredged material and timing

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:144: As detailed in Section 3, the dredged material is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:144: dredged material previously and it can accept the total proposed amount

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:144: dispose of capital dredged sediment. Impacts

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:144: of dredged material.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:144: Due to the quantity of material proposed to be dredged, it is advised that

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:144: of dredged material are presented.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:144:are predicted to occur (e.g. sediment plumes generated during capital dredging and effects on tidal currents

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:144: • Cefas Guideline Action Levels for the disposal of dredged material (Cefas, 2000); and,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:144:The Action Levels are used as part of a ‘weight of evidence’ approach to assessing the suitability of dredged

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:146:losses from dredging equipment and concentrations of contaminants within the sediments to be dredged

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:147:impacts associated with the proposed offshore disposal of dredged material are considered in Section 26,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:147:proposed new quay at South Bank. There is however a degree of overlap between the dredge footprint for

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:148: D2 Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:152:that found in 2006. The MMO has recently confirmed that the sediment to be dredged from the NGCT

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:153:13 surface samples from within and adjacent to the proposed dredge footprint for the NGCT scheme.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:154: Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:156:across the proposed dredge footprint. Samples will be recovered at the surface and at 1m intervals at each

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:156:of the 25 positions to the proposed dredge depth, or until geological mudstone is encountered beforehand

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:156:undertake maintenance dredging of the river to maintain the advertised dredge depths, with mid-licence

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:156:dredge disposal licence (to ensure that the maintenance dredged material remains suitable for offshore

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:157:7.5.1 Dispersion and redistribution of sediment during capital dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:157:Capital dredging would result in the creation of sediment plumes. To consider the potential extent and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:157:model MIKE3-HD and run for the four-month period over which dredging is likely to occur. The simulations

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:157:also accounted for the movement of dredgers and transport barges (including dredging, sailing, disposal

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:157:and downtime) and four ‘stages’ of dredging (which would occur in sequence) were modelled to allow for

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:157: • Stage 1: BHD working to dredge the upper soft material in the berthing pocket and river channel.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:157: • Stage 2: BHD and TSHD working in parallel to dredge the middle soft material in the berthing

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:157: • Stage 3: BHD working to dredge the bottom hard material in the berthing pocket and river

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:157: • Stage 4: BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:157:the figure that the largest concentrations are local to the dredger and typically reach around 100 to 200mg/l.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:157:dredgers. At some points in the cycle, areas of these initially separate plumes combine as they move

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:157:The maximum concentrations and the spatial extents of the plume arising from Stage 3 of the dredging are

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:157:and the production rate of dredging is notably lower. Figure 7.5 shows an example plume during Stage 3

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:157:dredging. Plots for the different tidal conditions are presented in Section 6.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:157:Again, peak concentrations close to the dredger are shown in the plume modelling output. On the ebb

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:158:Figure 7. 3 Plume of suspended sediment concentrations arising from dredging activities during Stage 2

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:158:(release from south-western ends of the two parallel dredging transects)

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:159:Figure 7. 4 Plume arising from dredging activities during Stage 1 of the capital dredge (release from the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:159:south-western corner of the dredging transect during the ebb phase)

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:160:Figure 7. 5 Plume of suspended sediment concentrations arising from dredging activities during Stage

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:160:3 (release from the south-western corner of the dredging transect during the ebb phase)

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:161:Figure 7.6 Plume of enhanced suspended sediment concentrations arising from dredging activities

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:162:Stage 2 of the proposed dredging schedule (when the BHD and TSHD would be working in parallel to dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:162:the proposed capital dredging works either do not cause elevations at the water quality monitoring points or

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:162:will be exceedances over baseline conditions throughout Stage 2 of the dredging schedule (as noted above,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:162:a period of approximately four weeks within the approximately four month dredging programme). The effect

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:162:7.5.2 Effects on water quality physical parameters during capital dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:162:The relatively limited nature of the plume extents predicted for the proposed capital dredging indicates that

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:162:Additionally, a significant component of the dredged material is likely to be geological sediment, which is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:162:only for the duration of the dredge (approximately four months) and reversible. As a result, the magnitude

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:163:7.5.3 Remobilisation of contamination during capital dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:163:undertaken to inform whether maintenance dredging within a dock in Dover Harbour could give rise to EQS

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:163:estimates of sediment losses from dredging equipment and concentrations of contaminants within the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:163:sediments to be dredged to provide an indication of the amount of contamination that could be released into

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:164:Table 7.9 Summary of calculations undertaken for potential water column effects within the Tees estuary at low water (based on removal of 15,000m3 of dredged

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:164: Calculated loss of sediment derived using indicative values for the mass of sediment resuspended per m 3 of dredged material in CIRIA guidance (John et al., 1999) in kg/m3. Worst case S-Factor for

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:164: MAC EQS Maximum Allowable Concentration. Used given the fact that dredging is not continuous as opposed to annual average EQS which averages samples collected over a year.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:166: • A relatively large proportion of the total volume of dredged material is anticipated to comprise

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:166: the dredge area.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:166: • The daily dredge volume is likely to be less than that accounted for due to stoppages associated

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:166: • The calculation is based on loss from a TSHD whereas a considerable component of the dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:166: will be undertaken with a backhoe dredger which has a lower production rate and therefore

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:166:weeks during Stage 2 of the proposed dredging programme.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:168:7.6.1 Dispersion and redistribution of sediment during maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:168:increase in deposition rates and hence a requirement for more material to be dredged from this local reach

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:168:annually (see Section 6 for more information). A 10% increase in annual maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:168:However, the majority of material removed during the weekly maintenance dredging campaigns undertaken

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:168:net annual maintenance dredging requirement from the estuary as a whole. Therefore the potential increase

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:168:in maintenance dredging requirement is not expected to be significant and would be managed within existing

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:168:maintenance dredging and offshore disposal regimes.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:168:dredging operations is predicted to be very low. Given the sensitivity of the Tees estuary is considered to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:191: dredging.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:191: • Impacts on marine ecology from increased suspended sediment during capital dredging and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:191: smothering as a result of dredging.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:191: • Impacts on marine communities due to changes in the maintenance dredge regime.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:191:from invasive species, through activities such as maintenance dredging, shipping ballast water exchange,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:194: dredging, can have a large effect upon habitats such as intertidal muds

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:195:The majority of the proposed dredge footprint is located within the subtidal zone. However, given the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:195:proposals to locate the quay in the riverbank (i.e. on existing land), dredging and excavation in front of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:199: would be indirectly affected (e.g. through sediment deposition during capital dredging).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:199: a 5mm cod end, with the trawls evenly distributed across the dredge area. Fish, shrimp and other

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:199:between the dredge footprint for the two schemes, specifically at Tees Dock turning circle. Results from the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:200: Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:206:PDT would continue to undertake maintenance dredging of the river to maintain the advertised dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:207:9.5.1 Direct loss of habitat due to demolition of existing structures and dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:207:9.5.1.2 Capital dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:207:The proposed capital dredging would result in direct impacts to existing areas of intertidal and subtidal

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:207:habitat that lie within the proposed dredge footprint, which are certain to occur.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:207:It is recognised that the proposed dredge footprint is within close proximity to the North Tees mudflat, which

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:207:the assumed side slopes to be created as part of the proposed dredge, no direct or indirect impact to this

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:207:The impact on the subtidal from the proposed dredging activities within the existing channel and part of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:207:is expected to recover following the dredging activities being carried out. However, in the short term, the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:207:benthic community would be removed from areas where dredging will be carried out.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:208:However, the capital dredging that will take place to create the berth pocket, and the rock blanket that will

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:208:wall during operation is estimated to be 5ha. The area of subtidal to be disturbed by the dredging activities

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:208:dredging. As mentioned in Section 9.4.4, as there was no clear dominance of a single species, information

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:208:dredging, recruiting from the surrounding population within the year (Diaz-Castaneda et al., 1989), although

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:208:disturbance/substratum loss (i.e. from maintenance dredging). Based on these, MarLIN reports a medium

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:208:The benthic community is expected to be somewhat sensitive to physical habitat loss from the dredging of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:209:overall sensitivity of high has been assigned on a conservative basis. The dredging activities will result in

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:209:dredging activities, the magnitude of this impact on the benthic community and habitat is considered to be

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:209:as a result of habitat loss caused by dredging would be of moderate adverse significance.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:209:the Tees estuary which could be directly impacted by the proposed dredging activity (MarLIN, 2020).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:209:Some of the mudflat that will be lost as a result of the proposed dredge / excavation is classified as Priority

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:209:nature of the habitats within the Tees. Although the loss of the intertidal due to the dredge / excavation

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:210:It is recognised that the proposed dredge is a key component of the proposed scheme, and as such the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:210:dredging has been minimised as far as possible, within the constraint of delivering a development that meets

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:210:9.5.2 Effects of increased suspended sediment concentrations during dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:210:Dredging of approximately 1,800,000m3 of material will be required for the proposed scheme, over half of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:210:which will be for the creation of the berth pocket. Approximately 155,000m3 of this will be dredging of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:210:intertidal (defined as between Mean Low Water and Mean High Water). The proposed dredging activities

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:210:as a result of dredging (at a level exceeding the respective EQSs of relevant contaminants) (Section 7.5.3).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:210:resuspended sediment which does not contain elevations beyond Action Level 2). The dredged sediment

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:210:In general, sediment plumes induced by dredging are considered to pose only a limited risk to water quality

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:210:accommodate an increased oxygen demand, particularly where dredging takes place in open sea or

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:210:dredging periods. The sediment plume generated by dredging would likely be dispersed by tidal currents

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:210:away from the dredging location. The dispersion would either be upstream on the flood tide or downstream

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:211:For both types of dredger (backhoe and TSHD), peak suspended solids concentrations are predicted in the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:211:immediate vicinity of the dredger. Sediment plume modelling predicts different plume extents and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:211:suspended sediment concentrations depending on the stage of dredging (as described in Section 6). In all

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:211:cases, the sediment plume is predicted to be very narrow within the river, with the phase of dredging with

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:211:the highest concentrations predicted to be 100-200 mg/L within the vicinity of the dredger, reducing to 10-

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:211:All plumes associated with different stages of dredging in the vicinity of the proposed new quay are confined

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:211:to the southern bank of the river, whilst all plumes associated with dredging of the turning circle are confined

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:211:(Figure 6.51), it was only during Stage 4 of the dredging (related to dredging of the turning circle) that any

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:211:the proposed dredge is considered to be of low sensitivity to increases in suspended sediment.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:212:The dominant sediment biotope present within the dredge footprint is EUNIS biotope A5.323, Nephtys

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:212:9.5.3 Effects of smothering following dredging on marine species and habitats

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:212:During the capital dredging a proportion of the material that is dredged would be disturbed and re-suspended

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:212:material during dredging is described in Sections 6 and 7.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:212:The proposed dredging footprint of the scheme is considered to be relatively limited; restricted to the direct

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:212:mentioned in Section 9.5.1.2, the estimated area to be disturbed directly as a result of the dredging activities

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:212:Some of the sediment that is suspended as a result of the dredging activities will be deposited to the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:212:riverbed, either soon after disturbance occurring during the dredging operation (for coarser-grained

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:212:on the riverbed within the dredging footprint, whilst the deposition that occurs in other parts of the river is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:213:Any smothering caused by the proposed dredging activities is not predicted to result in the deposition of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:213:sediments at Seal Sands, Bran Sands or North Gare Sands, due to the limited footprint of dredging activities,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:213:potentially be affected. It is predicted that the proposed dredging would not give rise to the loss of a

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:214:of ship wash and maintenance dredging where required) due to the shipping activities during operation and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:215:level rise. In the main channel the deposition will require periodic dredging to maintain the design depths.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:215:Changes to the cross-sectional area of an estuary due to capital dredging creation of a new subtidal area

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:215:9.6.3 Change in maintenance dredging regime affecting marine communities

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:215:dredging will not change. The areas that are being proposed to be maintenance dredged for the scheme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:215:are all areas that are currently already being dredged regularly; there will be no change in the extent of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:215:seabed affected by maintenance dredging, with the exception of the newly created berthing pocket.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:215:continuously be disturbed by shipping activity and maintenance dredging and, therefore, this will prevent

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:215:communities as a result of the maintenance dredging requirement arising from the proposed scheme.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:217:maintenance dredging, movement of vessels (including vessels associated with the demolition of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:217:mammals from the offshore disposal of dredged sediments are assessed in Section 26.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:220:estimate the noise levels likely to arise during the dredging works at the proposed scheme. More information

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:220:on the methodology used in the underwater noise modelling for the dredging works in Section 10.5.1.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:225:point of the proposed dredge footprint. The 2019 surveys occurred for a period of 47 days throughout the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:225:usage is relatively low in and around the proposed dredge footprint plus 1km buffer, with a grey seal density

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:225:dredging (Section 10.5 and 10.6). The density estimate of 0.014/km2 has been used to determine the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:227:at the Farne Islands (117km from proposed dredge area), Donna Nook in the Humber Estuary (173km from

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:227:proposed dredge area), the Wash (233km from proposed dredge area) and at Blakeney Point (244km from

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:227:proposed dredge area). With smaller haul-out sites located at Ravenscar (57km from proposed dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:227:area), Filey Brigg (81km from proposed dredge area) and at Seal Sands (3km from the proposed dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:228:Seals Sands is located approximately 3km from the proposed dredge footprint at its closest point. The Tees

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:228:usage is relatively low in and around the proposed dredge footprint plus a 1km buffer, with a harbour seal

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:230: 0.00008/km2 for dredge footprint plus 1km

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:230: 0.0003/km2 for dredge footprint plus 1km

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:230:disposal site. The winter area of the Southern North Sea SAC is located 127km from the proposed dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:230:The proposed dredge area is located within the Teesmouth and Cleveland Coast SSSI. Breeding harbour

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:230:Pupping tends to occur in June and July on the intertidal mud of Seal Sands (3km from the proposed dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:232:through the noise exposure event (dredging activity). This is a highly conservative approach, and likely has

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:232:the modelled noise levels for dredging works fell below 130 dB re 1µPa, they were of the order of ambient

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:233:publicly available (Subacoustech, 2018) has been used to assess the impact ranges of dredging works

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:233: • Backhoe dredger with an estimated sound source of 165.0 dB re 1 µPa SPLRMS @ 1m.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:233:proposed dredging in the Tees Dock turning circle to the coast).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:233:source levels predicted for the dredging activities, any marine mammal would have to remain in close

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:233:a result of underwater noise during dredging activities (Table 10.9) has been assessed based on the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:233:maximum number of animals that could be present in the maximum impact areas for dredging (Table 10.8).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:233:berth pocket, would be the same or less than those modelled for dredging activities.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:233:dredging activities based on Hartlepool approach channel underwater noise modelling (Subacoustech, 2018)

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:233: et al., 2019) dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:233: SEL during dredging 0.003km2

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:234:PTS as a result of underwater noise associated with dredging activities

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:234: dredging 0.00000024 grey seal Negligible / very low magnitude

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:234:The magnitude of the potential impact of PTS as a result of dredging noise is negligible / very low for harbour

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:234:The potential risk of any PTS that could result from underwater noise during the dredging works or other

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:234:activities would be limited to the immediate vicinity of the dredging works while they are taking place only.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:234:dredging works.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:234: dredging very low

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:235:The dredging process emits continuous, broadband sound into the marine environment. SPLs can vary

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:235:widely, dependent on the dredger type, operational stage, or environmental conditions (e.g. sediment type,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:235:factors will also affect the propagation of sound from dredging activities and along with ambient sound

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:235:Based on reviews of published sources of underwater noise during dredging activities (e.g. Thomsen et al.,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:235:mammals may be exposed to during dredging activities are usually below auditory injury thresholds or PTS

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:235:in marine mammals as a result of dredging activity is highly unlikely.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:235:area during dredging activities. Marine mammals may exhibit varying behavioural reactions intensities as a

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:235:in the berth pocket, would be the same or less than those modelled for dredging activities.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:236:case location (closest point of the proposed dredging in the Tees Dock turning circle to the coast).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:236:display a fleeing response, as a result of underwater noise during dredging activities (Table 10.12) has been

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:236:(Table 10.11) for proposed dredging activities.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:236:dredging activities based on Hartlepool approach channel underwater noise modelling (Subacoustech, 2018)

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:236: et al., 2019) dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:236: dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:236:result of underwater noise associated with proposed dredging activities

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:236: during dredging (0.000000004% of the NE England MU) (temporary effect with less than 1% of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:236:The magnitude of the potential impact of TTS and fleeing response as a result of dredging noise, is negligible

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:236:The potential risk of any TTS or fleeing response that could result from underwater noise during the dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:236:works would be limited to the immediate vicinity of the dredging works while they are taking place only. The

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:237:dredging works.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:237: dredging very low

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:238:vessels during the proposed dredging has been assessed based on a very precautionary worst-case of up

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:238:risk (Table 10.14). The proposed dredge footprint is approximately 0.38km2 in size (based on the dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:238:be present in the dredge footprint that could be at potential increased vessel collision risk

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:238: dredging (5% of Negligible / very low magnitude

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:238: animals in dredge 0.000002 grey seal

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:238:potential increase in collision risk with vessels during dredging has been assessed as negligible (not

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:239:Table 10.15 Assessment of impact significance for increased collision risk from vessels during dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:239: dredging very low

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:240:the proposed dredge footprint. Due to the distance of the haul-out site from the proposed scheme, there is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:240:no potential for the dredge vessels to cause any disturbance to seals hauled out at the site, including the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:240:dredged material offshore, would maintain the same distance from the sandbanks as vessels currently

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:240:The proposed dredging and other underwater activities (namely demolition and removal of existing

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:240:relied upon solely. Therefore, any increases in suspended sediments during dredging or other activities will

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:240:Potential impacts on fish species during dredging and other underwater activities can result from the physical

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:241:Therefore, there sensitivity to any changes in prey availability as a result of the proposed dredging is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:241:prey availability during the proposed dredging has been based on the dredge footprint of 0.38km2 and the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:241:be present in the dredge area that could be impacted by any changes to prey availability

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:241: dredge area Negligible / very low magnitude

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:241: dredge area Grey seal Low

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242: • Underwater noise during dredging;

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242: • Vessel interactions (collision risk) during dredging and operational use of the quay;

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242: • Disturbance at seal haul-out sites during dredging;

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242: • Changes in water quality during dredging; and,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242: • Changes to prey resource during dredging.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:It is important to note that there will be no changes to the overall maintenance dredging strategy currently

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:undertaken by PDT during operation, with maintenance dredging currently undertaken virtually daily within

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:dredging during the operational phase of the proposed scheme.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:10.6.1 Underwater noise during maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:Underwater noise predicted to be generated from maintenance dredging is considered to be the same or

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:less as the underwater noise predicted to occur from the capital dredging activities. Therefore, the impact

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:of maintenance dredging will be the same or less as that assessed for the construction phase (see Section

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:the maximum number of animals that could be impacted as a result of underwater noise during the dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:10.6.2 Vessel interactions (collision risk) during maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:The potential for any increased collision risk during the maintenance dredging operations is considered to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:maintenance dredging will be the same or less as that assessed for the construction phase (see Section

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:number of animals that could be at increased collision risk during the maintenance dredging. The impact

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:significance for harbour porpoise, minke whale, grey seal and harbour seal during maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:dredging activities. The residual impact would be of negligible significance.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:10.6.3 Disturbance at seal haul-out sites during maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:The potential for any disturbance at seal haul-out sites during maintenance dredging is considered to be the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:same or less as that assessed for the dredging activities during the construction phase, and therefore the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:242:impact significance for any disturbance at seal haul-out sites during maintenance dredging has been

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:243:10.6.4 Changes in water quality during maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:243:The potential impact of any changes to water quality during maintenance dredging is considered to be the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:243:same or less as that assessed for the dredging activities during the construction phase, and therefore the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:243:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:243:impact significance for any changes to water quality during maintenance dredging has been assessed as

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:243:10.6.5 Changes to prey resource during maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:243:The potential impact of any changes to prey resources during maintenance dredging is considered to be the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:243:same or less as that assessed for the dredging activities during the construction phase, and therefore the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:243:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:243:impact significance for any changes to prey resources during maintenance dredging has been assessed as

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:259: P roposedDredg

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:266:vessels or disturbed by underwater noise or dredging activities. The vessels used in construction activities

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:271: Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:275: 7 P roposedDredg

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:277: P roposedDredg

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:278: P roposedDredg

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:284: the proposed channel dredge, berth pocket and wharf demolition footprint and includes the North

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:295:12.5.1 Loss of supporting habitat due to dredging / excavation and demolition

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:295:The dredging footprint in the main channel does not overlap with the intertidal habitat available at North

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:296:supporting habitat within the footprint of the proposed dredging and excavation represents just 0.3% of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:296:As discussed further in Section 13.5.1, dredging and excavation activities resulting in an increase in SSC

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:296:The area that may be affected by increases in SSC during dredging has been described in Section 6.5.2.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:296:In summary, the largest sediment plumes are likely to arise during Stage 2 of the dredging (i.e. BHD and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:296:TSHD working in parallel to dredge in the berth pocket and the main channel). During this stage, the zone

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:296:of influence extends approximately 750m downstream and 2,500m upstream of the dredged area (see

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:296:Stage 2 dredging, presented in Section 6.5.2 indicates that significant SSC excesses from the capital

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:296:dredging are confined to the dredging transects and are predicted to decrease significantly with increased

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:296:distance from the dredging vessel, both laterally and along the line of the vessel, with plumes diminishing

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:297:the dredging campaign may overlap with part of the common tern breeding period.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:297:affected by dredging, as detailed in Section 12.3.2). The peak count in 2020 was a decrease on previous

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:297:important for foraging and therefore terns may be sensitive to the turbidity caused by dredging operations

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:297:species (e.g. Sandwich tern). Furthermore, the occurrence of frequent (almost daily) maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:297:As described above, the zone of influence of the Stage 2 dredge presented in Figure 6.39 significantly

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:297:levels are only predicted to exceed baseline levels during the dredging campaign (a period of approximately

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:297:2 dredging will only comprise approximately one month of the approximately five month dredging campaign,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:298:and the other stages of the dredge campaign would result in a smaller plume than that described for Stage

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:298: therefore be undertaken in long strips along the axis of the estuary rather than dredging across

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:298: the width of the river. This is to reduce both the extent and impact of the dredged plume, as any

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:298: channel. This approach has been proposed for other capital dredge operations in the Tees, such

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:298:The deposition of fine sediment within intertidal areas due to capital dredging has the potential to affect

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:298:dredging, is presented in Section 6.5.2. Fine sediment will be deposited within minutes or hours if carried

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:298:in suspension from the point of release. Most falls within the dredged areas, whilst deposition elsewhere is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:298:of the effects of capital dredging and therefore a negligible impact is predicted on the waterbirds relying on

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:299:from dredging and demolition works, represented as the day / night LAeq) at most receptor locations will be

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:302:of construction personnel, plant / machinery, dredgers / other vessels and construction lighting. In particular,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:302:during dredging of the main channel, dredging vessels will operate in close proximity to the North Tees

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:302:Mudflat and Vopak Foreshore. Dredging is due to continue for a period of approximately five months. This

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:302:end of the proposed scheme footprint are within 300m of the mudflat (not including dredging activities, which

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:303:During dredging of the main channel and the turning circle, dredging vessels will operate in close proximity

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:303:to the North Tees Mudflat and Vopak Foreshore. Most notably, sections of the channel dredge footprint run

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:303:adjacent to the North Tees Mudflat (this is illustrated in Figure 11.2), therefore the presence of dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:303:maintenance dredging vessels which operate on an almost daily basis within the channel, including within

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:303:that there will be further habituation over the dredging period and any effects would lessen through the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:303:Disturbances to birds at Vopak Foreshore would be limited to the very short-term dredging within the Tees

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:303:limited to Stages 1 to 3 (a period of approximately 4.5 months), but only during times when the dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:303:transect runs close to the mudflat (for example, when dredging the southern half of the river it is unlikely to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:303:and the mudflat itself extends over a kilometre upstream of the dredge footprint. As such, any displacement

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:303:Given the above, it is anticipated that visual disturbances from dredging operations would have a minor

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:303:The mitigation measures outlined in Section 12.5.2 would ensure that dredging vessels only operate along

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:303:the axis of the river, rather than across it, thus minimising the frequency of occasions whereby the dredger

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:303:operates adjacent to the North Tees Mudflat. There is no practical way of avoiding dredging activities since

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:304:as a result of dredging activities and residual noise from land-based piling works. The assessment

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:304:concludes that there may be a minor adverse effect as a result of the dredging leading to fish moving away

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:307:The potential impacts on fish and other marine species and habitats from the offshore disposal of dredged

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:309: Extensive dredging activity is planned for this area of the River Tees,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:309: species such as European Eel, Atlantic Salmon and Lamprey, it is result of the dredging have been

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:309: likely that dredging activity will need to take into account the considered in Section 7, and the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:309: would entail limiting dredging activity to certain times of the year migratory fish is presented in Section

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:309:of underwater noise levels arising from construction works such as piling and dredging. This section

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:317: • Byelaw XXIII – Method and Area of Fishing (Scallop Dredges) Byelaw 2015 – prohibits any

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:317: scallop dredge activity within the Tees Estuary and any marine area within 3nm of the coast.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:318:vessels under 10m in length. As outlined in Section 13.4.2.1, trawling, scallop dredging and netting gear

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:318:13.5.1 Changes in marine water quality due to dredging activity

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:318:During capital dredging, approximately 1.8Mm3 of sediment (including approximately 1.27Mm3 of soft

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:318:material) will be removed by TSHD and backhoe dredger, which will result in a temporary increase in SSC

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:318:in one phase, the capital dredge campaign is anticipated to continue for approximately four months. Full

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:318:dredging, is provided in Section 6. The peak suspended sediment concentration within the Tees during the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:319:dredging campaign is predicted to be around 85 mg/l, although this is very limited in extent and would only

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:319:it is very unlikely that disturbance of sediment during the dredging would result in exceedances of EQSs,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:319:affected areas (Appleby and Scarratt, 1989). However, given that maintenance dredging is regularly

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:319:undertaken with the Tees by PDT (almost daily maintenance dredging all year round), it can be reasonably

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:319:to the disturbances associated with dredging activity.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:319:it is assumed that the programme for the capital dredging in the proposed scheme may coincide with peak

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:319:during a period of very hot and dry weather. Modelling of the sediment plume during capital dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:319:the dredging activity and falls below 50mg/l a short distance from the area being dredged. Concentrations

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:319:of suspended sediments are predicted to decrease significantly with increased distance from the dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:320:no more than a few hundred metres from the dredging source.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:320:to the proposed dredging, significant elevations in SSC are predicted to occur in the immediate vicinity of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:320:the dredger and along the streamline and, for the most part, are expected to be restricted to a relatively

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:320:dredging phases set out in Section 6, the maximum area affected by increased SSC includes the entire

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:320:migratory fish movement in the estuary, particularly in juvenile (smolt) stages. With the dredging lasting for

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:320:journeys throughout the dredging campaign.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:320: therefore be undertaken in long strips along the axis of the estuary rather than dredging across

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:320: the width of the river. This is to reduce both the extent and impact of the dredged plume, as any

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:320: dredging operation, as with other capital dredge operations in the Tees (e.g. Royal

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:320:of the river at a time and, should dredging be undertaken during the months when migratory fish are present

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:320:which migratory fish will be able to move past the dredging activity (and for resident species to relocate to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:320:not viable since the size of dredger has to be sufficient to carry a large enough drag head and to have

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:320:sufficient propulsion power to undertake the required dredging operation.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:13.5.2 Entrainment of fish and fish eggs by dredging gear

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:Use of dredging apparatus, particularly TSHD dredge heads, could potentially lead to the entrainment of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:effects from direct uptake during dredging include physical injury, mortality and displacement. The potential

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:the lower Tees estuary, including the footprint of the proposed dredge, with plaice and dab notably abundant

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:Physical disturbance to the riverbed and noise/visual disturbance within close proximity to the dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:crustaceans), with the presence of the dredge head likely resulting in them temporarily relocating away from

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:the substrate or by other means, are likely to be sensitive to entrainment from dredging activities on that

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:these species develop in the water column and are less sensitive to being entrained by dredge gear

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:operating at the seabed. Regardless, regular maintenance dredging undertaken within the proposed dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:risk of direct uptake of eggs during the capital dredge.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:since it would be limited to those present within the dredge footprint (an area of ~350,000m2). Given that

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:of dredging on benthic habitat and food resources, assessed in Section 13.5.5.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:13.5.3 Underwater noise during dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:the dredging options) include movement of the drag head on the seabed, material suctioned through the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:TSHD dredgers are typically low frequencies, up to and including 1kHz (Robinson et al., 2011). Underwater

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:knots) (Theobald et al., 2011). Although backhoe dredging will also be employed during the capital

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:321:dredging, underwater noise associated with this method is generally considered to be lower than for TSHD

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:322:line system. As such, underwater sound arising from the dredging is expected to fall within the hearing

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:322:such as those produced by operational dredging vessels, to fish, as presented in Table 13.8. Given a lack

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:323:For the purposes of this assessment, the risk that noise from dredging activities could result in mortality or

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:323: worst-case scenario (this form of dredging forms the worst-case scenario for the proposed scheme);

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:323: Tees Dock turning circle and the dredge footprint for the proposed scheme.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:323: • The bathymetry and substrate in the proposed dredging location is broadly similar to that in the area

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:323:which certain unweighted RMS SPLs were expected to occur from both backhoe and TSHD dredging.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:324:Table 13.9 Summary of the modelled ranges for unweighted RMS SPLs in 10dB increments for dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:324: Unweighted RMS Backhoe dredging TSHD

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:324:Modelled ranges for backhoe dredging are notably less than they are for TSHD. For the most sensitive

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:324:when considering use of TSHD, and 5 to 10m from source when undertaking backhoe dredging). This is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:324:will be breaks in dredging activity during the dredge/disposal cycles, plus it is highly unlikely that fish would

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:324:dredging, during an underwater noise survey conducted by Subacoustech in 2014 (Royal HaskoningDHV,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:324:will be sustained for as long as dredging is ongoing (a period of approximately four months). Noise levels

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:324:from backhoe dredging are considerably lower, and only significantly exceed background levels within a

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:324:vessels and almost daily maintenance dredging, and they would also be able to temporarily move to nearby,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:324:less affected areas within the river while dredging is ongoing. Potential impacts for migratory species are

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:325:downstream, particularly if dredging is undertaken during key migratory periods (see Section 13.4.1.2).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:325:Given that significantly elevated noise levels produced during backhoe dredging are not expected to extend

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:325:The TSHD campaign is predicted to last for approximately four weeks. While dredge/disposal cycles will

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:325:dredging would likely be very similar to the almost-daily maintenance dredging activities undertaken in the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:325:recommence once the dredging campaign has ceased. Furthermore, the noise levels at the site will abate

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:325:for the majority of each dredge/disposal cycle while the TSHD vessel transports material to and from the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:325:dredging campaign. As such, the significance of a potential barrier effects on migratory species caused by

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:325:Use of dredging vessels are imperative for the proposed scheme. While use of smaller dredger heads may

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:325:measure. Applying the measure set out in Section 13.5.1 (dredging along the axis of the river, rather than

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:325:across the river) will help to ensure that noise levels at the opposite side of the river from the dredger remain

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:325:as low as possible over a dredge/disposal cycle, but as stated above the elevated noise levels will be

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:328:fish. Removal of the wharf would result in a permanent loss of such habitat. Additionally, capital dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:328:on benthic estuarine flora and fauna, the regular maintenance dredging undertaken by PDT within the river

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:328:channel leads to a conclusion that the area of subtidal to be affected by the proposed dredging is unlikely

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:328:to represent an important spawning or feeding site . Regardless, capital dredging activities on existing

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:328:The ongoing maintenance dredging suggests that subtidal habitat in the proposed dredge footprint is likely

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:328:Given the maintenance dredging that occurs, it can be reasonably assumed that fish feeding within the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:328:dredging activity. For this reason, the general sensitivity of fish to temporary changes in subtidal habitat in

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:328:Given the above, alteration of the subtidal habitat as a result of dredging activity is considered to have a

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:328:As well as the subtidal area affected directly by dredging activity, the increases in SSC anticipated during

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:328:capital dredging activity will consequently result in an increase in sediment deposition, which has the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:328:within the dredged area, whilst other areas outside the dredge footprint affected are typically less than 5cm.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:328:In the small extent of subtidal area outside the dredge footprint that may be affected by a small amount of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:330:those already subject to regular maintenance dredging and/or experience high volume of vessel traffic and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:331:13.6.3 Change in maintenance dredging regime affecting supporting habitats and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:331:effects on the existing maintenance dredging strategy, and no changes to the present-day maintenance

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:331:dredging strategy are necessary. As such, there would be no additional impact on supporting benthic

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:331:habitats and prey resources beyond those already associated with the existing maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:334: Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:334: Advertised Dredge Depths (m)

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:334: Advertised Dredge Depths

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:335:to the presence of the dredger and barges within and adjacent to the navigation channel (as well as any

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:335:area in the vicinity of the proposed quay but the capital dredging will, at certain stages in the construction

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:335: • Post dredge surveys and promulgation.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:335:It is envisaged that PDT would manage any potential conflicts in the same way as routine dredging and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:335:Harbour Master. Management of dredging operations within a busy port environment is a standard activity

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:337: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:337: dredging.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:337: deposition will require periodic dredging to maintain the design depths.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:337: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:339: disposal of dredged material should be taken into account.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:341: The Tees has been subject to dredging in the recent past meaning the potential for

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:343: heritage is likely to be limited by dredging within the immediate area of the proposed

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:343: wreck sites whether these are situated within an area of proposed new dredging 16.4.1 and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:343: dredging and offshore disposal activities (Figure 6.2).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:344: Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:345: Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:351: Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:352:known to have been found during dredging within the river channel and there is a submerged forest is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:352:located near Hartlepool on the north bank. Although extensive dredging and reclamation has taken place

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:353: Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:354: Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:355:reclamation and disturbance from previous dredging within the channel. Although there is high potential for

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:356: • Dredged channel/area, Navigation feature (Section of navigable waters), Modern (AD1900 –

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:356:proposed scheme (dredging and construction of the new quay) are in keeping with the historic (and current)

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:358: • capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:359:by the historic reclamation and disturbance from previous dredging within the channel.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:359:potential for remains to be present, if such remains are encountered during dredging or during excavations

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:359:If present, dredging within the turning circle and approach channel and dredging / excavation to create the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:359:to effects during construction it is concluded that, other than within the dredged areas, sediment deposition

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:359:it will subsequently be dredged as part of ongoing maintenance dredging regimes, whilst material deposited

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:359:back into the newly dredged areas will be re-dredged during the capital works in order to achieve the desired

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:360: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:360: o in the main channel the deposition will require periodic dredging to maintain the design

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:360: construction as impacts are expected to already have occurred during the capital dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:360: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:367: Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:373: • Dredging; and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:375: Dredging THSD/backhoe 1 C7.2 60 110.3

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:385: Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:388: Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:390: Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:395: Dredging (one backhoe, one TSHD, two 6 20

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:395:Vessels used for the proposed dredging would be in use for a relatively short amount of time (approximately

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:424:comments on their requirements when considering the potential impact of dredging on the estuary, the need

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:426:namely the proposed dredge footprint, is in Flood Zone 3, associated with the 1 in 200-year return period

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:427: 3.7 * The proposed dredge footprint at the Tees Dock

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:454:dredging activity which are likely to translate to very small direct employment effects. As such, adopting the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:454:occur during demolition, quay construction, excavation and dredging phases. Assuming a gradual ramping

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:465: • fuel consumption from marine vessels, dredgers and road traffic; and,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:467:Capital dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:467:Capital dredging will be carried out within part of the Tees Dock turning circle, within parts of the existing

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:467:navigation channel and within areas not currently subject to maintenance dredging to create a berth pocket.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:467:This would include dredging of marine sediments and excavation of soils / landside material within the river

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:467:The total dredged volume for marine sediments is predicted to be approximately 1,800,000m3. Dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:467:will be undertaken using a combination of a TSHD and a backhoe dredger. Different backhoe dredgers will

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:467:the transport of sediment dredged using the backhoe dredger to the offshore disposal site.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:468:Information for the calculation of GHG emissions from dredging are provided in Table 22.5.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:468:Table 22.5 Specifications of dredgers and barges to be used during the construction phase

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:468: Number of dredgers 1 1 1

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:468: Installed power dredger (kW) 8,313 1,600 1,600

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:468: dredger and barge)

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:468: Power load factor estimate – dredger 50% 75% 80%

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:468:In addition to the workboats associated with demolition listed in Table 22.4, and dredgers and barges listed

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:471: Construction dredger 6

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:478:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:478:The proposed scheme is predicted to generate up to approximately 1,800,000m3 of dredged sediment from

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:478:been undertaken on a worst-case basis whereby all dredged sediment from the Tees estuary would be

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:478:26.2 Modelling the dispersion and deposition of capital dredged material

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:478:To inform the assessment of environmental impacts from predicted offshore disposal of dredged material,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:479:The proposed disposal of dredged material within the Tees Bay C offshore disposal site has the potential

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:479:within and beyond the boundary of the Tees Bay C site due to disposal of dredged material. Seabed

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:479:that there would be negligible impact on fish or fisheries due to the proposed deposition of dredged material

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:479:In 2010, CEFAS undertook the ‘SLAB5’ dredged material disposal site sampling survey at a number of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:482:The proposed disposal of dredged material at the Tees Bay C offshore disposal site would be significantly

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:482:arise from offshore disposal of dredged material

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:482:disposal site (an area which is designated specifically for the disposal of dredged material), however the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:484:invasive species Theora lubrica were found in samples from the Tees estuary, within the NGCT dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:484:are within the areas which are subject to regular maintenance dredging by PDT, however were located

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:484:outside of the proposed dredge footprint for the proposed South Bank scheme. The proposed dredging and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:484:dredge footprint prior to the dredge taking place (if they are not there already).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:484:species are not present at levels of concern within the Tees estuary. Maintenance dredged material from

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:484:Bay for many years and will continue into the future. As a result, the disposal of dredged material within

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:484:(beyond that which has already occurred from previous and ongoing maintenance dredge disposal

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:484:To undertake the disposal operation, the TSHD and/or disposal barges would transport dredged material

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:484:from the proposed dredge footprint to the Tees Bay C offshore disposal site. Consequently, there is potential

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:484:The disposal operations are linked to the dredging task and would require regular movements of dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:484:plant between the dredge site and the disposal site, via the navigation channel and the coastal waters of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:484:dredged material offshore would be low (i.e. a TSHD and/or a barge), and no impact is predicted.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:484:The proposed disposal of dredged material has the potential to result in shallowing of the water depth above

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:484:significantly impacts navigation. It is concluded that the proposed disposal of dredged material into the Tees

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:485:The underwater noise predicted to arise from the proposed dredging activities have been used as a proxy

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:485:for the assessment of potential impacts associated with offshore disposal of dredged sediments (see

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:485:disposal of dredged sediments are likely to be less than those generated during dredging activities. The

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:485:impact ranges are based on those modelled for the Hartlepool approach channel dredging scheme (see

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:485:As outlined in Section 10.5.1, there would be no risk of any PTS as a result of the proposed dredge and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:485:consequently this conclusion also applies to the proposed offshore disposal of dredged material.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:485:display a fleeing response, as a result of underwater noise during offshore disposal of dredged sediments

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:485:offshore disposal of dredged sediments

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:485: et al., 2019) dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:485: disposal of dredged 0.003km2

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:485:result of underwater noise associated with offshore disposal of dredged sediments

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:485: disposal of dredged (0.0000006% of the NE England MU) (temporary effect with less than 1% of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:486:dredged sediments is negligible / very low for harbour porpoise, minke whale, grey seal and harbour seal,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:486:disposal of dredged sediments would be limited to the immediate vicinity of the vessels while they are

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:486:disposing of the dredged material. The number of harbour porpoise, minke whale, grey seal and harbour

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:486:dredged sediments on harbour porpoise, minke whale, grey seal and harbour seal, has been assessed as

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:486:Table 26.5 Assessment of impact significance for underwater noise during offshore disposal of dredged

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:486: dredged

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:486:Potential for vessel interactions (collision risk) with marine mammals during disposal of dredged

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:487: of dredged 0.002 grey seal Negligible / very low magnitude

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:487:potential increase in collision risk with vessels during offshore disposal of dredged sediments has been

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:487: of dredged very low

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:487:disturbance due to the disposal of dredged sediment into the disposal site to seals at Seal Sands, including

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:488:As outlined in Section10.5.4, any vessels passing the seal haul-out sites as they take the dredged material

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:488:dredged sediment

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:488:The offshore disposal of dredged material would temporarily increase the suspended sediment

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:488:Changes to marine mammals prey resource during offshore disposal of dredged sediment

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:491:the basis of the potential extent of the dredging and disposal plumes.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:492: Proposed quayside works and dredging at its North Sea supply base Approximately

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:492: The NGCT scheme comprises capital dredging up to 4.8 million m3

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:492: disposal of dredged material offshore, construction of a new 1.5km The NGCT scheme is located in very close

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:492: NGCT elements (buildings, rail terminal, road access, lighting, drainage Dredge footprint therefore is screened into the CIA.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:492: • dredging up to 750,000m3 of material from the approach

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:493: • dredging up to 372,000m3 of material from the approach

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:493: In addition to the proposed dredge (and associated disposal of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:493: dredged material), PDT is proposing to construct an underwater

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:493: being undermined following the proposed dredge.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:494: nature of this activity, maintenance dredging and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:494: for the area. However, maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:494: dredging at Hartlepool This activity has been ongoing for many years. 0km capital dredging activity required for South Bank

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:494: dredging at Hartlepool channel as the effects of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:494: 1 and Dolphin D, and a dredge of the river bed adjacent to the Consent in place small scale that there would be no significant

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:494: (with associated disposal of dredged material) to extend the existing dredge footprint cumulative impacts.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:494: Given that the dredge footprint largely overlaps

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:494: dredging in Tees Dock, which, given its location,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:494: The Tees Channel Dredge project involves a proposed deepening of would have no means of affecting the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:494: maximum maintained depth of 14m below CD. An Environmental estuary system), the area would be dredged by

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:494: Tees Channel Dredge Scoping Report (Royal HaskoningDHV, 2016) was submitted to the 0km either the South Bank project or the Tees Channel

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:494: MMO alongside a request for a scoping opinion for the project in Dredge project (not both). This removes the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:494: report has not yet been undertaken. Tees Channel Dredge project, therefore, has not

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:495: • Dredging of the existing berth and disposal of dredged

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:496: The MMO sees the proposed dredge as a

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:496: maintenance dredge activity. Given the frequency,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:496: PDT is proposing to undertake a dredge of the approach channel to dredging, maintenance dredging and disposal is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:496: MMO has confirmed that PDT should submit a variation request to However, the proposed dredge could be

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:496: Tees channel dredge its existing maintenance dredge licence in order to dispose of the undertaken at the same time as the capital

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:496: dredged material (i.e. the MMO sees the proposed dredge as a dredging activity required for South Bank (albeit

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:496: maintenance dredge activity). PDT’s intention is to undertake the within a different part of the estuary).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:496: dredge during 2020/2021.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:496: under the ‘maintenance dredge’ umbrella

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:500:American Harbour Facilities schemes and the ongoing maintenance dredging in the Tees estuary:

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:500: • dispersion of suspended sediment during capital dredging and deposition at the offshore disposal

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:500:Maintenance dredging at Hartlepool and within the Tees estuary has been on-going for many years. Given

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:500:the frequency, duration and the ongoing nature of this activity, maintenance dredging and disposal is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:500:Dispersion of suspended sediment and deposition on the seabed during capital dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:500:All projects scoped into the CIA involve will involve capital dredging. This activity will create a plume of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:500:During the capital dredging works for the proposed scheme, other port facilities on the Tees will remain

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:500:operational. Maintenance dredging is, therefore, expected to continue throughout the capital dredge period.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:500:The capital dredge is also expected to influence the maintenance dredging requirements during and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:500:The extent of the sediment plume created by capital dredging is heavily dependent on the dredging plant

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:500:that is adopted, and this is determined by (amongst other factors) the nature of the bed and the dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:501:likely dredge plant that would be adopted and, in some cases, assumed that different types of plant would

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:501:be used for dredging different sediment types as part of the same project. As noted in Section 6.5.2, it is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:501:affected by a plume at some point during the dredging or disposal activities (in some areas this will be on a

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:501:of sediment plume dispersion and deposition onto the river and/or seabed during capital dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:501: Combined maximum zone of influence from Stages 1 - 4 inclusive of the dredging activities

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:501:NGCT TSHD dredging sand in the approach channel in low river flow, spring tide

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:501:sediment in the water column was predicted to be in close proximity to the dredger, with plume dispersion

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:501:dredging (and reclamation for NGCT) over the slack water period. In practice, much of this deposited

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:501:material will be re-dredged as part of the capital works for each scheme. At the peripheries of each plume,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:501:It should be noted that the potential for cumulative effects only arises should the dredging for the proposed

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:502:(right) as a result of the proposed scheme [Note: plots show sediment plume impacts arising from dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:502:activities during Stages 1 - 4 inclusive of the capital dredging programme]

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:503:The potential impacts of the maintenance dredging programme in the Tees are considered within the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:503:Maintenance Dredging Baseline Document (Royal Haskoning, 2008). This consideration is specifically in

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:503:the context of the implications of maintenance dredging for the Teesmouth and Cleveland Coast SPA and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:503: • effect of increases in suspended sediments during maintenance dredging on food resources of SPA

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:503: • increased noise levels (disturbance) during maintenance dredging.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:503:The Maintenance Dredging Baseline Document 2008 concluded that maintenance dredging represents a

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:503:potential supply of fine material to Seal Sands, with the timing of maintenance dredging in relation to the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:503:however, the Maintenance Dredging Baseline Document concluded that the maintenance dredging activity

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:503:The WFD assessment presented in the latest annual update to the Maintenance Dredging Baseline

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:503:Document (Royal HaskoningDHV, 2019) concluded that, at water body level, maintenance dredging at

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:503:capital dredging have been proposed for the Anglo American Harbour facilities and the NGCT. For the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:503:former project, mitigation comprises the use of specialist dredging equipment (i.e. an enclosed grab loading

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:503:into a sealed barge) for dredging of unconsolidated material to minimise resuspension in the water column.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:503:This requirement is specified because of the elevated concentration of contaminants within the dredged

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:504:will be no impact on tidal propagation or water levels due to the limited area of proposed dredging for this

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:504:channel in the lower estuary that will arise from capital dredging for the NGCT.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:504:that the proposed new quay alignment and capital dredge will not significantly affect the existing baseline

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:504:the dredging is predicted to draw some of the flow to the south side of the estuary, although such effects

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:505:require periodic dredging to maintain the design depths (a 10% increase in annual maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:505:proposed dredge).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:505:offshore; with the potential to increase the maintenance dredging requirements by about 10%. No increase

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:505:used for, maintenance dredging, and no effect on sediment supply to intertidal areas throughout the Tees

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:505:The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:505:material to Seal Sands. However, the latest annual update to the Maintenance Dredging Baseline

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:505:maintenance dredging regime could adversely affect the overall estuary morphology and the ongoing

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:506:maintenance dredging in the Tees estuary as follows:

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:506: • dispersion of suspended sediment during marine works, dredging and disposal; and,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:506:cumulative effects only arises should dredging for each scheme coincide. Under such circumstances, the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:506:timing of the projects and their respective programmes of capital dredging will coincide to result in a scenario

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:506:across the estuary and navigational safety is unlikely to support dredging on different sides of the estuary

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:506:In terms of maintenance dredging, there is the possibility that maintenance dredging could occur at the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:506:relatively localised effects to the dredger produced in the hydrodynamic modelling assessment for the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:506:similar throughout the estuary where regular maintenance dredging occurs. As a result, and noting the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:507:within the footprint of the proposed scheme, where the intertidal area will be dredged to create the berth

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:507:capital dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:507:Sediment deposition resulting from the dredging for the proposed scheme will largely be within the proposed

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:507:dredged footprint. Deposition that occurs in other parts of the river is predicted to be much lower, typically

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:507:are largely similar; however, the effect of the NGCT dredge is larger, with deposition predicted to extend

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:508:Maintenance dredging is targeted at areas that require dredging to maintain navigable depths and, although

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:508:Based on the above, it is concluded that there will be no cumulative effect on the maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:508:modelled for piling and dredging for the Hartlepool approach channel (Table 27.3).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:508:dredging based on NMFS (2018) criteria for Hartlepool approach channel scheme modelling

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:508: during dredging South Bank Harbour porpoise 153 dB re 1 µPa HF SELcum 0.7km

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:509:dredging at the proposed South Bank scheme, NGCT, Hartlepool approach channel and Anglo American

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:509:temporary auditory injury (TTS) or a fleeing response from cumulative impacts of piling and dredging at the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:509: during dredging – III Block O density of 0.888/km2.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:510: during piling and dredging – density of 0.01/km2. population anticipated to be

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:510:or dredging noise from the proposed scheme, NGCT, Hartlepool approach channel and Anglo American

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:510:disturbance as a result of cumulative underwater noise impacts from piling and dredging activities on

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:511:dredging activities on marine mammals

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:511: dredging at the Negligible /

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:511: • Ongoing maintenance dredging.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:511: • Tees channel dredge.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:513:of the proposed scheme, should it be undertaken at the same time as the dredging required for the NGCT,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:513:dredging works that exist within the Tees estuary. As stated in Section 12.5.2, the main receptor that may

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:513:In order for a potential cumulative impact to manifest, the dredging campaign for the proposed scheme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:513:would need to coincide with at least one of the other dredging campaigns noted above, and both would need

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:513:this occurs, the zones of influence from dredging would create an additive effect, as demonstrated in

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:513:more dredge campaigns ongoing at any one time.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:513:(i.e. dredging along the axis of the river rather than across it to ensure that, at any one time, sediment

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:513:Anglo American Harbours facilities scheme, specialist dredging equipment (i.e. an enclosed grab loading

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:513:into a sealed barge) will be used for dredging of unconsolidated material to minimise resuspension in the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:513:Stage 2 of the proposed capital dredging coincide with the Hartlepool Channel deepening works, the two

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:513:dredging plumes together will still affect only around 0.5% of the SPA subtidal habitat (Royal

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:513:HaskoningDHV, 2015)). However, the additive effect of the sediment plumes from separate dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:514:Changes in marine water quality due to dredging activity

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:514:require dredging, including the NGCT, Anglo American Harbour Facilities and the ongoing maintenance

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:514:dredging works. The main receptors that may be affected by this cumulative effect are migratory species,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:514:Should two or more of the dredging campaigns for the proposed scheme, the NGCT scheme, the Anglo

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:514:American Harbour facilities scheme and the ongoing maintenance dredging be undertaken simultaneously,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:514:and preventing migration, should the dredging be undertaken during the peak migration season.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:514:scheme in Section 13.5.1 (i.e. dredging along the axis of the river, rather than across it to ensure that, at

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:514:of the sediment plumes from separate dredging campaigns cannot be completely avoided if the campaigns

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:515:Underwater noise from the proposed scheme is predicted to arise from both dredging and land-based pile

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:515:the land-based piling, there may be minor adverse impacts from the dredging noises which could potentially

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:515:Should the dredging campaign for the proposed scheme coincide with dredging from one or more of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:515:NGCT scheme, the Anglo American Harbour facilities scheme and the ongoing maintenance dredging, the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:515:Given the regularity of maintenance dredging within the channel, resident and migratory fish in the estuary

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:515:reduce the magnitude of impacts from individual dredges. It has to be recognised that underwater noises

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:515:in isolation, though it is highly unlikely that there would be more than one or two dredge campaigns ongoing

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:515:American Harbour Facilities scheme. The South Bank dredge footprint will pass adjacent to the site of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:515:Anglo American Harbour Facilities and the NGCT dredge footprint (overlapping with the proposed dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:516:to this are the dredging footprint for the Tees Dock turning circle (which is also included as part of NGCT

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:517:dredge footprint), and the landward part of the proposed scheme of this application (which overlaps in part

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:517:However, as the dredging for the turning circle will only take place once, either for NGCT or for the scheme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:521:27.5.22 Disposal of dredged material

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:521:The proposed scheme involves the requirement to dispose of up to 1,800,000m3 of dredged material

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:521:offshore, should no beneficial re-use options be forthcoming prior to the dredge taking place. Section 26

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:521:concludes that the disposal of dredged material will have a negligible impact on fisheries, marine ecology

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:522:estuarine-and-coastal-waters. The proposed quay, dredge area, disposal site and WFD water body outlines

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:522:maintenance dredging campaigns would be on a significantly smaller scale than the capital dredging and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:522:that the estuary is already subject to ongoing maintenance dredging, scoping is undertaken on capital

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:522:dredging only.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:523: Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:524: • C2 Capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:524: dredger.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:526: 22.Dredging disposal strategy

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:526: 23.Reduce impact of dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:526: 25.Retime dredging or disposal None identified

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:526: 27. Dredge disposal site selection

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:528:C2 Capital dredging hydromorphology and WFD mitigation are no higher sensitivity water quality due to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:528: 500m. during dredging.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:529:C2 Capital Dredging No – dredging will not impact on the groundwater body

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:530:28.5 Detailed assessment – C2 Capital dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:531: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:531: to the new quay alignment) and the local deepening of the bed due to the capital dredging.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:531: the deposition will require periodic dredging to maintain the design depths.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:531:in mean tidal prism as a result of the new quay’s set-back alignment and dredging of part of the existing

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:532:Overall therefore, the effects of the capital dredging and presence of new quay wall on the flow conditions

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:532:Capital dredging within the river would result in sediment plumes. To consider the potential extent and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:532:model MIKE3-HD and run for the four-month period over which dredging is predicted to occur. The

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:532:simulations also accounted for the movement of dredgers and transport barges (including dredging, sailing,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:532: BHD working to dredge the In all tidal conditions modelled, the lateral extent of the plume across the river channel

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:532: created by the different dredgers. At some points in the cycle, areas of these initially

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:532: parallel to dredge the middle

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:532: 3 BHD working to dredge the The maximum concentrations and the spatial extents of the plume arising from Stage

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:532: bottom hard material in the 3 of the dredging are much lower than those experienced during Stage 1 largely

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:532: berthing pocket and river because the material being released is coarser and the production rate of dredging is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:532: channel. notably lower. Plume very small and located close to the dredging activity.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:532: 4 Again, peak concentrations close to the dredger are shown in the plume modelling

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:532: parallel to dredge the material

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:533: Proposed Dredge and Excavation Envelope

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:534:concentations within an hour. All other stages of proposed dredging either do not cause elevations or only

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:534:Tyne for the New Tyne Crossing to predict the consequences of dredging on dissolved oxygen

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:534:such as dredging times, seasonal fluctuations and river flows, the modelling predicted only small differences

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:534:between background and dredging impacted dissolved oxygen concentrations. No difference was noted

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:534:between the summer and winter concentrations. Furthermore, dredging in the Tyne is considered to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:534:limited plume extents for the majority of the capital dredge for the proposed scheme.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:534:dissolved oxygen concentrations are only likely to be an issue when dredging within an area with an existing

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:534:monitoring of dredging suggests effects are unlikely. Given the water body has a classification status of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:535: • A relatively large proportion of the total volume of dredged material is anticipated to comprise

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:535: the dredge area.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:535: • The daily dredge volume is likely to be less than that accounted for due to stoppages associated

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:535: • The calculation is based on loss from a TSHD whereas a considerable component of the dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:535: will be undertaken with a backhoe dredger which has a lower production rate and therefore

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:535:with hours) for Stage 2 which reduce as dredging progresses (see Figure 28.4).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:535:suspended solids when in close proximity to the dredger. As a result, a non-temporary deterioration in water

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:535:The majority of the proposed dredge footprint is located within the subtidal parts of the Tees estuary and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:535:therefore the majority of the dredge would impact on the lower sensitivity habitat ‘subtidal soft sediment’ of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:535:locate the quay in the riverbank (i.e. on land), dredging and excavation in front of the quay wall to create the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:536:Information regarding the habitat located within the dredge footprint is to be confirmed with a site specific

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:536:collected to inform the ES for NGCT are likely to be similar in nature to those found within the dredge

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:536:most frequently in the estuarine locations (and within the area to be dredged for this project) was EUNIS

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:536:The biotopes recorded in the 2019 survey are likely to reflect those located in the dredge area given their

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:536:Whilst capital dredging would remove material from the seabed it would not alter the habitat type available

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:536:composition and numbers following dredging, it is predicted that the sediment communities would recover

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:537:It is also recognised that the proposed dredge footprint is within close proximity to the North Tees mudflat,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:537:Sediment suspended within the dredging plumes will fall to the riverbed, either soon after disturbance or

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:537:spillage occurring during the dredging operation (for coarser-grained sediment fractions), or at a point in

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:537:by deposition. It can be seen that much of the sediment falls to the bed within the dredged areas (from

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:537:where it will be re-dredged to achieve the necessary bed depths), whilst the deposition that occurs in other

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:538:Figure 28.5 Maximum river bed thickness change due to sediment deposition arising from dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:538:activities during Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:539:affected areas (Appleby and Scarratt, 1989). However, given that maintenance dredging is regularly

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:539:affected area would likely be relatively tolerant / acclimatised to the disturbances associated with dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:539:areas of the estuary at any one time. Additionally, it is proposed that dredging would be limited to one side

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:539:past the dredging activity (and for resident species to relocate to largely undisturbed areas), thus reducing

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:539: There would be a temporary presence of dredging vessels but

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:539: Dredging disposal strategy Whilst there would be a temporary increase in material that

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:539: Reduce impact of dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:539: would not alter significantly the maintenance dredging and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:539: Retime dredging or disposal MMO and their advisors Cefas.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:539: Dredging would be managed in line with mitigation measures

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:539: Dredge and disposal site selection agreed for various environmental topics which include

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:539: dredging along the axis of the river to ensure the plumes are

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:539: a result of the capital dredge is provided in Section 28.5.3.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:540:The combined effects of the dredge area and presence of new quay wall set back in the embankment are

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:540: Dredging disposal strategy

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:541: Reduce impact of dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:541: Retime dredging or disposal Riverbank excavation would not impact on these mitigation

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:541: Dredge and disposal site selection

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:542:The combined effects of the dredge area and presence of new quay wall set back in the embankment are

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:542: Dredging disposal strategy

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:542: Reduce impact of dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:542: Retime dredging or disposal

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:542: Dredge and disposal site selection

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:542: on marine ecology are related to dredging of the berth and are

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:543: deepened areas associated with the capital dredge which could have effects on ecological

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:543: • The combined effect of the loss of intertidal habitat (dredged berth), loss of subtidal (rock blanket)

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:543: and temporary disturbance of subtidal habitat (capital dredge) on ecological potential of the WFD

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:544: • The combined effect of dredging and effects associated with piling and riverbank excavation on

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:544:same as the effects predicted for the capital dredging alone.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:544:predicted to be temporary and a significant portion of the dredge area is already subject to maintenance

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:544:dredging so is already disturbed and supports communities habituated to this disturbance. The remaining

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:544: • Ongoing maintenance dredging in the Tees estuary.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:544:All schemes require dredging and construction of new riverbank structures and therefore the following

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:544: • Disturbance of marine habitats associated with dredging.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:545:maximum concentrations of suspended solids are localised to the dredging activity and quickly disperse

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:545:with distance from the dredger. Additionally, peaks are relatively short lived (approximately an hour at a time

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:545:for the proposed scheme for example) and associated with specific dredging phases of each scheme. The

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:545:water column would be significantly increased by the projects all dredging at the same time. Where

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:545:proposed project both include mitigation measures to dredge in long strips to reduce the effects of sediment

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:545:dredgers would be working on different sides of the estuary and therefore clear channels would be

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:545:Any project that requires dredging would disturb the marine communities within the sediments to be

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:545:dredged. However, PDT undertake maintenance dredging in the majority of the estuary. Consequently, all

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:545:disturbance. Given dredging for all projects would not alter the substrate type or exposure, subtidal

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:545:index are not predicted given the existing maintenance dredging which would be accounted for in the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:545:proximity to the dredging over the slack water period for all projects. In practice, much of this deposited

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:545:material will be re-dredged as part of the capital works for each scheme. Beyond the immediate deposition

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:547: or water levels due to the limited area of proposed dredging for this project. Cumulative effects are therefore not predicted over and above those identified for the scheme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:547: Currents Modelling for the proposed scheme showed that the new quay alignment and capital dredge would have very small localised effects predominantly near to the quay wall but

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:547: require periodic dredging equivalent to a 10% increase in annual maintenance dredging requirement.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:547: material to the Tees estuary from offshore; with the potential to increase the maintenance dredging requirements by about 10%. No increase in sandy infill was predicted. A

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:547: changes in current speeds but that this would not alter the present frequency of, or methodology used for, maintenance dredging. Additionally, no effect was identified on

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:548: The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine material to Seal Sands. However, the latest annual update to the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:548: Maintenance Dredging Baseline Document (Royal HaskoningDHV, 2019) concludes that the current maintenance dredging regime does not adversely affect the overall

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:548: estuary morphology and the ongoing morphological processes at work. Additionally, maintenance dredging forms part of the baseline for WFD classification given that it is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:549:dredging’ identified risks to all WFD quality elements but detailed assessment deemed that the impacts

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:549:the locality of the dredger and only for hours at a time during Stage 2 of the proposed dredge programme.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:549:All other stages of dredging required for the proposed scheme did not indicate significant concentrations of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:549:protect resident and migratory fish further reduce this risk as dredging will be limited to occurring in long

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:550:These were NGCT, Anglo American Harbour Facilities and ongoing maintenance dredging in the estuary.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:550:would be sediment plumes associated with dredging simultaneously. However, on further consideration,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:550:peak concentrations for all projects are restricted to close proximity to the dredger and disperse with

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:550:projects would occur at the same time. Mitigation measures such as dredging in long strips as required for

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:555: dredging, excavation and demolition works.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:555: • Sand and shingle • Water quality reductions from demolition and dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:555: with offshore disposal of dredged material have been

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:556: Northumberland a result of underwater noise during dredging and • No pathways for effect

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:557: (100km south porpoise as a result of underwater noise during dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:557: • Mudflats and sandflats not due to underwater noise from dredging and offshore

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:559:dredging.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:559:influence of the proposed scheme will be determined by the sediment plume during dredging activities.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:561: Proposed quayside works and dredging at its North Sea supply base Approximately

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:562: The NGCT scheme comprises capital dredging up to 4.8 million m3 Should the NGCT scheme coincide with the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:562: disposal of dredged material offshore, construction of a new 1.5km interest features of the SPA / Ramsar site could

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:562: NGCT elements (buildings, rail terminal, road access, lighting, drainage Dredge footprint noise, visual disturbance and water quality

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:562: • dredging up to 750,000m3 of material from the approach scheme, in-combination effects to the interest

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:562: • dredging up to 372,000m3 of material from the approach

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:563: In addition to the proposed dredge (and associated disposal of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:563: dredged material), PDT is proposing to construct an underwater

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:563: being undermined following the proposed dredge.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:563: nature of this activity, maintenance dredging and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:563: for the area. Although maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:563: Ongoing maintenance dredging for the scheme, there is potential for

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:563: dredging at Hartlepool This activity has been ongoing for many years. 0km maintenance dredging elsewhere within the Tees

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:563: and in the Tees estuary to coincide with the capital dredging, which could

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:563: The effects of maintenance dredging at Hartlepool

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:563: maintenance dredge disposal licence) would not

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:564: refurbishment 1 and Dolphin D, and a dredge of the river bed (with associated

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:564: dredge footprint combination effects.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:564: disposal of dredged material) to extend the existing berth pocket

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:564: The dredge footprint for the proposed scheme

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:564: overlaps with the proposed Tees channel dredge.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:564: The Tees Channel Dredge project involves a proposed deepening of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:564: Tees Channel Dredge Scoping Report (Royal HaskoningDHV, 2016) was submitted to the 0km

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:564: the Tees Channel dredge would not be undertaken

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:565: • Dredging of the existing berth and disposal of dredged

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:566: dredge as a maintenance dredge activity. Given

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:566: PDT is proposing to undertake a dredge of the approach channel to maintenance dredging within the Tees, this activity

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:566: its existing maintenance dredge licence in order to dispose of the capital dredging activity required for the proposed

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:566: dredged material (i.e. the MMO sees the proposed dredge as a scheme (albeit within a different part of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:566: maintenance dredge activity). PDT’s intention is to undertake the estuary).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:566: dredge during 2020/2021.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:566: under the ‘maintenance dredge’ umbrella

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:570: • Loss of intertidal feeding resource due to dredging and excavation to create the berth pocket.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:570: • Indirect impacts on foraging behaviour as a result of impacts to prey resource from capital dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:570: • Maintenance dredging.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:572:Effects on water quality due to dredging and disposal

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:572:The capital dredging of the river will cause plumes of sediment to form. The plume effects arising from the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:572:river dredging are characterised by a short-lived localised increase in suspended sediment concentrations

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:572:by the order of a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:572:extent and reduction in concentration over the following hours. Since the dredging is a near-continuous

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:572:at varying extents depending on the dredging activities undertaken at any one time. Deposition thicknesses

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:573:be sustained in light of sea level rise. In the main channel, the deposition will require periodic dredging to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:573:maintain design depths. An increase in annual maintenance dredging requirement considered in Section

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:573:6 is predicted to yield a very low overall contribution to the net annual maintenance dredging requirements

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:573:from the estuary as a whole and the potential increase in maintenance dredging requirement could easily

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:573:be managed within existing maintenance dredging regimes (i.e. no change to the existing maintenance

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:573:dredge strategy is required).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:573:new quay’s set-back alignment and dredging of part of the existing estuary bed is 150,901m3. This

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:573:SPA, behind the existing wharf, to subtidal habitat, due to the capital dredging and excavation required to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:573:create the berth pocket. The dredging footprint in the channel and the Tees Dock turning circle does not

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:573:mudflat / other intertidal types in the estuary (i.e. the dredge will be within subtidal areas only). Dredging in

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:574:as foraging grounds, indicated by WeBS core counts for the two sectors in which capital dredging will be

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:574:subject to regular (almost daily) maintenance dredging by PDT therefore the impact of the capital dredge is

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:574:the proposed capital dredge. Furthermore, the subtidal area within the proposed dredge footprint represents

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:575:dredging.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:575:While 32.5ha of subtidal will be affected by the proposed capital dredging, the area already experiences

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:575:regular (almost daily) maintenance dredging by PDT so there are not expected to be any long-term changes

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:575:With the application of mitigation in the form of ensuring that the capital dredging transects run along the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:575:dredging activities associated with the highest modelled increase in SSC (i.e. Stage 2 of the dredging, which

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:575:The sediment dispersion modelling of Stage 2 dredging indicates that, at any given time, significant SSC

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:575:excesses from the capital dredging are confined to the dredging transects and are predicted to decrease

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:575:significantly with increased distance from the dredging vessel, both laterally and along the line of the vessel,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:575:month dredging programme.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:575:England, 2018a). The area affected by the sediment plume generated from proposed dredging, though

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:575:Maintenance dredging in the channel, undertaken by PDT on an almost-daily basis, infers that terns using

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:575:dredged.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:575:foraging opportunities during the capital dredging are not considered to represent a significant change to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:576:approximately five-month duration of the capital dredging campaign. As such, there are expected to be no

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:576:concludes that the periodic nature of underwater noise, plus the likely habituation to background dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:576:noise due to regular maintenance dredging, means that impacts on fish are considered to be of minor

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:576:opportunities during the capital dredging are not considered to represent a significant change to foraging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:578:construction personnel, plant / machinery, dredgers / other vessels and construction lighting. Sections

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:579:scheme footprint (not including dredging activities, which are considered separately below), therefore for

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:579:During dredging of the main channel and the turning circle, dredging vessels will operate in close proximity

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:579:to the North Tees Mudflat and Vopak Foreshore. Most notably, sections of the channel dredge footprint run

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:579:adjacent to the North Tees Mudflat, therefore the presence of dredging vessels may result in disturbance to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:579:dredging vessels which operate on an almost daily basis within the channel, including within 30m of the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:579:habituation over the proposed capital dredging period and any effects would lessen through the course of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:579:Disturbances at Vopak Foreshore would be limited to the approximately one week of dredging required to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:579:approximately 4.5 months of dredging required further upstream, but only during times when the dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:579:transect runs close to the mudflat (for example, when dredging the southern half of the river it is unlikely to

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:579:threshold, and the mudflat itself extends over a kilometre upstream of the proposed dredge footprint. As

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:580:associated with the capital dredging has been assumed to represent a temporary loss of foraging habitat in

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:580:various impacts commonly associated with dredging and industrial work in the Tees. As such, the number

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:581:adjacent to the dredging footprint. The proposed scheme will result in the conversion of approximately 2.5ha

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:581:of intertidal to subtidal habitat, demolition of artificial structures and dredging of an area of approximately

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:581:As stated in Section 29.5.4, the effects of capital dredging on subtidal habitat are considered to be

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:581:characteristic of a disturbed environment regularly affected by ongoing maintenance dredging). Impacts on

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:583:projects. However, dredging activity may, at worst, lead to some localised redistribution on North Tees

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:583:the ongoing PDT maintenance dredging, have the potential to cause similar disturbance to the Vopak

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:583:Foreshore and / or North Tees Mudflat due to dredging activity in the channel. However, the dredge footprint

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:583:for the proposed scheme overlaps in part with the NGCT dredge footprint at the Tees Dock turning circle.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:583:The dredge at Tees Dock turning circle would therefore only be undertaken by one of these schemes, which

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:583:reduces the potential for in-combination disturbance to birds at Vopak foreshore. Maintenance dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:583:within the estuary occurs on an almost daily basis; such dredging was ongoing at the time the SPA and

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:583:Ramsar site was extended and has been occurring for many years. It is therefore concluded that dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:583:dredging for all schemes screened into the assessment be required at the same time (which is highly

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:584:approach channel scheme and the ongoing maintenance dredging by PDT.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:584:An interaction between the sediment plumes would only occur in the unlikely event that the capital dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:584:low, with any effect confined to the footprint of the proposed dredge. The predicted increase in suspended

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:584:impact dissipating within 10 minutes following completion of the dredge (Royal HaskoningDHV, 2018).

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:584:Harbour Facilities scheme, the ongoing maintenance dredging and the Dogger Bank Teesside A & Sofia

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:584:dredging transects oriented along the axis of the river rather than across to ensure that, at any one time,

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:584:For the Anglo American Harbours facilities scheme specialist dredging equipment (i.e. an enclosed grab

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:584:loading into a sealed barge) will be used for dredging of unconsolidated material to minimise resuspension

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:584:extensive (and on-going) maintenance dredging within the channel on an almost-daily basis, common terns

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:585:on land are excluded. The ongoing maintenance dredging is also not considered here as this forms part of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:585:increase in maintenance dredging requirement is not expected to be significant and could easily be

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:585:managed within existing maintenance dredging and offshore disposal regimes.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:585:been subject to maintenance dredging and offshore disposal as part of ongoing maintenance dredging.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:586:impacts commonly associated with dredging and industrial work in the Tees, regardless. As such, the

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:588:ABPmer (2005). Tees Maintenance Dredging Baseline Document. Report R.1149.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:588:Central Dredging Association (CEDA) (2011). Underwater sound in relation to dredging. Position Paper - 7

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:588:November 2011. Available at URL: http://www.dredging.org/documents/ceda/downloads/2011-

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:591:Halcrow (1991). Tees Estuary Dredging Review. Report for Tees and Hartlepool Port Authority.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:592:HR Wallingford (1992). Tees and Hartlepool Port Authority. Review of Dredging. EX 2580.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:593:sediment plumes arising from dredging. Construction Industry Research and Information Association

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:593:Jones, D. and Marten, K. (2016). Dredging sound levels, numerical modelling and EIA. Maritime Solutions

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:597:Pirotta, E., Laesser, B. E., Hardaker, A., Riddoch, N., Marcoux, M., and Lusseau, D. (2013). Dredging

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:597:(2011). Measurement of underwater noise arising from marine aggregate dredging operations. Marine

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:597:Royal Haskoning (2007a). Tees Maintenance Dredging Baseline Document. May 2007.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:598:Royal HaskoningDHV (2017a). Tees Maintenance Dredging Annual Review 2016.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:598:Royal HaskoningDHV (2018). Tees Maintenance Dredging Annual Review 2017.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:598:Royal HaskoningDHV (2019a). Tees Maintenance Dredging Annual Review 2018.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:598:Royal HaskoningDHV (2020a). Tees Maintenance Dredging Annual Review 2019.

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:599:(2011). The measurement of underwater noise radiated by dredging vessels during aggregate extraction

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:600:F. (2014). A review of impacts of marine dredging activities on marine mammals. – ICES Journal of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:600:WODA (2013). Technical Guidance on: Underwater Sound in Relation to Dredging. World Organisation of

R-2020-0371-SCP-PC1084_R-2020-0371-SCP-RHD-ZZ-XX-RP-Z-1100_EIA_Report_main_body-from-gov-uk.pdf:600:Dredging Associations.

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:1:  Dredging of the River Tees,

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:3:Dredging

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:3:Dredging can have a number of negative impacts on the water environment. It can alter

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:3:effects, thereby damaging benthic habitats and migratory fish populations. Dredging

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:3:should consider the methodology to be used, the disposal of dredged material, and the

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:3:Impacts of dredging on the tidal prism of the estuary, and therefore the extent and

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:3:required given the extensive nature of the dredge. In addition to the initial capital dredge,

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:4:consideration of the impacts associated with the continued maintenance of the dredged

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:5:Construction of new quay and dredging (1km)

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:5:Dredging

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:5:Extensive dredging activity is planned for this area of the River Tees, and the effects of

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:5:Lamprey, it is likely that dredging activity will need to take into account the protection of

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:5:these species during critical migration periods. This would entail limiting dredging activity

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:8:elevation associated with dredging, can have a large effect upon habitats such as

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:9:Alternative uses of dredged material – Advice to Applicant

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:9:It is proposed to dispose of the dredged material offshore. Should there be a need for

R-2020-0371-SCP-EA R_2020_0371_SCP 14 August 2020 OFFICIAL.pdf:9:of dredging materials may be found on the GOV website while any treatment on site will

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:1: the ‘marine’ works comprise demolition of the existing timber wharf and jetties, capital dredging (to

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:1: disposal of dredged sediments and construction and operation of a new quay (to be set back into

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:1: dredging concept for the proposed scheme (the concept design for the proposed quay is ongoing,

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:2:and jetties, capital dredging (to deepen the Tees Dock turning circle and approach channel and to create

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:2:a berth pocket), offshore disposal of dredged sediments and construction and operation of a new quay (to

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:3: Dredging

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:6: Benthic ecology It is advised that a habitat survey should occur within the dredge footprint to identify any important benthic habitats or species.

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:6: The Tees has been subject to dredging in the recent past meaning the potential for archaeologically significant deposits or features to be impacted in

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:7: • Dredging of the River Tees;

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:7: The applicant should consider the methodology to be used, the disposal of dredged material, and the timing of works. Decisions should be underpinned

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:7: Dredging and disposal

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:8: The disposal site must be specified, ensuring that it has taken capital dredge material before, and can accept the total proposed amount of dredge

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:8: for disposal to sea (and to inform the impact assessment). Any material to be dredged and disposed of within licenced disposal areas at-sea must not

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:8: The MMO would support the consideration of using the dredged material for beneficial use. This could include recharge of intertidal areas elsewhere in

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:8: Specific information on the dredging and piling activities will be required, including the duration of works and anticipated working hours, the likely noise

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:8: The proposed works overlap with the Northern Gateway Terminal project. The applicant has estimated that the works will require a capital dredge of 2.5

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:8: million cubic metres (m3) of material. The applicant has stated that this will be reduced to 1.6 million m3 of capital dredge material if the works are carried

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:8: out alongside the Northern Gateway project (capital dredge of 4.5 million m3).

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:11:from the proposed dredging and disposal activity by coupling a sediment plume model built in MIKE21-MT

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:11:be run for the entire dredging period under astronomic tidal and daily mean fluvial flow conditions.

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:11:(in particular the effect of resuspension and dispersion of sediment during dredging and disposal activities).

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:12:disturbance would be from dredging and vessel transits which are a regular occurrence in the Tees.

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:12:Maintenance dredging is undertaken on a very regular throughout the Tees estuary and therefore

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:12:significant underwater noise disturbance effects are not anticipated due to the proposed capital dredge.

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:15: 4.19. Offshore disposal of dredged material

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:15:offshore disposal of dredged material.

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:15:The potential impact of the disposal of dredged material will be assessed in the context of Cefas records

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:15:dredged material from other consented projects.

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:17:Appendix 1 Preliminary dredging concept for the current scheme being progressed by STDC

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:18: 3. ALL DREDGE SLOPES ARE ASSUMED TO BE 1:3. TO BE

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:18: 7. PROPOSED SCHEME AVOIDS DREDGING OVER THE

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:18: DREDGE DEPTH WILL NEED TO INCREASE BY THE

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:18: MAINTAINED DREDGE LEVEL -10.4mCD

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:18: DESIGN DREDGE LEVEL -11.0mCD Pipelines

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:18: PRELIMINARY DREDGING

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:18: MAINTAINED DREDGE LEVEL -10.4mCD BM CF TJR

R-2020-0371-SCP-PC1084-RHD-SB-EN-NT-EV-1106.pdf:18: DESIGN DREDGE LEVEL -11.0mCD DATE SCALE REF.

R-2020-0371-SCP-NEAR.pdf:1:to be limited by dredging within the immediate area of the proposed dock facilities.

R-2020-0371-SCP-NEAR.pdf:1:sites whether these are situated within an area of proposed new dredging (either for

R-2020-0684-ESM-EA R_2020_0684_ESM 4 March 2021 OFFICIAL.pdf:1:DREDGING AND DEVELOPMENT OF NEW QUAY AND ASSOCIATED WORKS

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:1:The potential impacts on fish and other marine species and habitats from the offshore disposal of dredged

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:3: Extensive dredging activity is planned for this area of the River Tees,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:3: species such as European Eel, Atlantic Salmon and Lamprey, it is result of the dredging have been

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:3: likely that dredging activity will need to take into account the considered in Section 7, and the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:3: would entail limiting dredging activity to certain times of the year migratory fish is presented in Section

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:3:of underwater noise levels arising from construction works such as piling and dredging. This section

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:11: • Byelaw XXIII – Method and Area of Fishing (Scallop Dredges) Byelaw 2015 – prohibits any

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:11: scallop dredge activity within the Tees Estuary and any marine area within 3nm of the coast.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:12:vessels under 10m in length. As outlined in Section 13.4.2.1, trawling, scallop dredging and netting gear

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:12:13.5.1 Changes in marine water quality due to dredging activity

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:12:During capital dredging, approximately 1.8Mm3 of sediment (including approximately 1.27Mm3 of soft

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:12:material) will be removed by TSHD and backhoe dredger, which will result in a temporary increase in SSC

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:12:in one phase, the capital dredge campaign is anticipated to continue for approximately four months. Full

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:12:dredging, is provided in Section 6. The peak suspended sediment concentration within the Tees during the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:dredging campaign is predicted to be around 85 mg/l, although this is very limited in extent and would only

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:it is very unlikely that disturbance of sediment during the dredging would result in exceedances of EQSs,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:affected areas (Appleby and Scarratt, 1989). However, given that maintenance dredging is regularly

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:undertaken with the Tees by PDT (almost daily maintenance dredging all year round), it can be reasonably

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:to the disturbances associated with dredging activity.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:it is assumed that the programme for the capital dredging in the proposed scheme may coincide with peak

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:during a period of very hot and dry weather. Modelling of the sediment plume during capital dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:the dredging activity and falls below 50mg/l a short distance from the area being dredged. Concentrations

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:13:of suspended sediments are predicted to decrease significantly with increased distance from the dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:no more than a few hundred metres from the dredging source.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:to the proposed dredging, significant elevations in SSC are predicted to occur in the immediate vicinity of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:the dredger and along the streamline and, for the most part, are expected to be restricted to a relatively

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:dredging phases set out in Section 6, the maximum area affected by increased SSC includes the entire

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:migratory fish movement in the estuary, particularly in juvenile (smolt) stages. With the dredging lasting for

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:journeys throughout the dredging campaign.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14: therefore be undertaken in long strips along the axis of the estuary rather than dredging across

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14: the width of the river. This is to reduce both the extent and impact of the dredged plume, as any

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14: dredging operation, as with other capital dredge operations in the Tees (e.g. Royal

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:of the river at a time and, should dredging be undertaken during the months when migratory fish are present

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:which migratory fish will be able to move past the dredging activity (and for resident species to relocate to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:not viable since the size of dredger has to be sufficient to carry a large enough drag head and to have

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:14:sufficient propulsion power to undertake the required dredging operation.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:13.5.2 Entrainment of fish and fish eggs by dredging gear

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:Use of dredging apparatus, particularly TSHD dredge heads, could potentially lead to the entrainment of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:effects from direct uptake during dredging include physical injury, mortality and displacement. The potential

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:the lower Tees estuary, including the footprint of the proposed dredge, with plaice and dab notably abundant

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:Physical disturbance to the riverbed and noise/visual disturbance within close proximity to the dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:crustaceans), with the presence of the dredge head likely resulting in them temporarily relocating away from

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:the substrate or by other means, are likely to be sensitive to entrainment from dredging activities on that

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:these species develop in the water column and are less sensitive to being entrained by dredge gear

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:operating at the seabed. Regardless, regular maintenance dredging undertaken within the proposed dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:risk of direct uptake of eggs during the capital dredge.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:since it would be limited to those present within the dredge footprint (an area of ~350,000m2). Given that

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:of dredging on benthic habitat and food resources, assessed in Section 13.5.5.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:13.5.3 Underwater noise during dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:the dredging options) include movement of the drag head on the seabed, material suctioned through the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:TSHD dredgers are typically low frequencies, up to and including 1kHz (Robinson et al., 2011). Underwater

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:knots) (Theobald et al., 2011). Although backhoe dredging will also be employed during the capital

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:15:dredging, underwater noise associated with this method is generally considered to be lower than for TSHD

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:16:line system. As such, underwater sound arising from the dredging is expected to fall within the hearing

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:16:such as those produced by operational dredging vessels, to fish, as presented in Table 13.8. Given a lack

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:17:For the purposes of this assessment, the risk that noise from dredging activities could result in mortality or

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:17: worst-case scenario (this form of dredging forms the worst-case scenario for the proposed scheme);

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:17: Tees Dock turning circle and the dredge footprint for the proposed scheme.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:17: • The bathymetry and substrate in the proposed dredging location is broadly similar to that in the area

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:17:which certain unweighted RMS SPLs were expected to occur from both backhoe and TSHD dredging.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:Table 13.9 Summary of the modelled ranges for unweighted RMS SPLs in 10dB increments for dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18: Unweighted RMS Backhoe dredging TSHD

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:Modelled ranges for backhoe dredging are notably less than they are for TSHD. For the most sensitive

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:when considering use of TSHD, and 5 to 10m from source when undertaking backhoe dredging). This is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:will be breaks in dredging activity during the dredge/disposal cycles, plus it is highly unlikely that fish would

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:dredging, during an underwater noise survey conducted by Subacoustech in 2014 (Royal HaskoningDHV,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:will be sustained for as long as dredging is ongoing (a period of approximately four months). Noise levels

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:from backhoe dredging are considerably lower, and only significantly exceed background levels within a

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:vessels and almost daily maintenance dredging, and they would also be able to temporarily move to nearby,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:18:less affected areas within the river while dredging is ongoing. Potential impacts for migratory species are

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:downstream, particularly if dredging is undertaken during key migratory periods (see Section 13.4.1.2).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:Given that significantly elevated noise levels produced during backhoe dredging are not expected to extend

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:The TSHD campaign is predicted to last for approximately four weeks. While dredge/disposal cycles will

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:dredging would likely be very similar to the almost-daily maintenance dredging activities undertaken in the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:recommence once the dredging campaign has ceased. Furthermore, the noise levels at the site will abate

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:for the majority of each dredge/disposal cycle while the TSHD vessel transports material to and from the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:dredging campaign. As such, the significance of a potential barrier effects on migratory species caused by

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:Use of dredging vessels are imperative for the proposed scheme. While use of smaller dredger heads may

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:measure. Applying the measure set out in Section 13.5.1 (dredging along the axis of the river, rather than

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:across the river) will help to ensure that noise levels at the opposite side of the river from the dredger remain

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:19:as low as possible over a dredge/disposal cycle, but as stated above the elevated noise levels will be

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:fish. Removal of the wharf would result in a permanent loss of such habitat. Additionally, capital dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:on benthic estuarine flora and fauna, the regular maintenance dredging undertaken by PDT within the river

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:channel leads to a conclusion that the area of subtidal to be affected by the proposed dredging is unlikely

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:to represent an important spawning or feeding site . Regardless, capital dredging activities on existing

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:The ongoing maintenance dredging suggests that subtidal habitat in the proposed dredge footprint is likely

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:Given the maintenance dredging that occurs, it can be reasonably assumed that fish feeding within the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:dredging activity. For this reason, the general sensitivity of fish to temporary changes in subtidal habitat in

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:Given the above, alteration of the subtidal habitat as a result of dredging activity is considered to have a

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:As well as the subtidal area affected directly by dredging activity, the increases in SSC anticipated during

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:capital dredging activity will consequently result in an increase in sediment deposition, which has the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:within the dredged area, whilst other areas outside the dredge footprint affected are typically less than 5cm.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:22:In the small extent of subtidal area outside the dredge footprint that may be affected by a small amount of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:24:those already subject to regular maintenance dredging and/or experience high volume of vessel traffic and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:25:13.6.3 Change in maintenance dredging regime affecting supporting habitats and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:25:effects on the existing maintenance dredging strategy, and no changes to the present-day maintenance

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:25:dredging strategy are necessary. As such, there would be no additional impact on supporting benthic

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_13. Fish and fisheries.pdf:25:habitats and prey resources beyond those already associated with the existing maintenance dredging

R-2020-0684-ESM-Response from applicant.PDF:1:proposed works, both land side and the dredging proposals, it is necessary for HRO approval to be a pre-

R-2020-0684-ESM-Response from applicant.PDF:1:the first phase development being closest to the mouth of the River and, therefore, requiring less dredging.

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1112_Appendix 10_Transport Statement.pdf:5: substation), capital dredging (to deepen the northern half of the Tees Dock turning circle, a section

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1112_Appendix 10_Transport Statement.pdf:5: of the existing approach channel and to create a berth pocket), offshore disposal of dredged

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1112_Appendix 10_Transport Statement.pdf:20: the 110 employees, 10 would be associated with offshore dredging and would therefore not travel

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1112_Appendix 10_Transport Statement.pdf:21:Dredging

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1112_Appendix 10_Transport Statement.pdf:21:Dredging 20 4 By sea 0 0 0 0

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:2: 1.2. Capital dredging is anticipated to be required within part of the Tees Dock turning

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:2: The total dredge volume is predicted to be 1,960,000m3.

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:2: 1.3. Two active disposal sites were identified that could potentially accept dredged

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:2: dredged material would be disposed of at Tees bay C (TY150) disposal site.

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:2: 1.4. It is noted that a significant proportion of the proposed dredge volume is anticipated

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:2: Management of Dredged Material, samples should be taken to provide a good

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:2: representation of the volume of material to be dredged. The distribution and depth of

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:2: sampling should reflect the size and depth of the area to be dredged, the amount to

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:2: be dredged and the expected variability in the horizontal and vertical distribution of

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:2: 2.2. In consideration of the volume details of the proposed dredge, the MMO advises that

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:2: 25 sample sites will be required from across the dredge area to provide adequate

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:3: a maximum dredge depth as indicated on the sample plan form attached in

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:3: 2.4. If the maximum dredge depth exceeds the depth at which mudstone is located,

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:3: dredged and samples must be representative of the material to be dredged (see

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:3: 3.1. Details of recent sampling from within the dredge area were provided. This included

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:3: maintenance dredge and disposal licence (L/2015/00427/4). 10 surface samples

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:4: 2017, comprising of 37 surface samples within and adjacent to the proposed dredge

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:4: footprint for the NGCT. The proposed dredge footprint for NGCT marginally overlaps

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:4: majority of the NGCT dredge footprint is located downstream of the proposed survey

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:5: 5.3. Where long term licences for maintenance dredging will be applied for, additional

R-2020-0684-ESM-Appendix 6_Sediment sampling plan.pdf:8:Stations should be evenly distributed across the dredge area

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:1: the ‘marine’ works comprise demolition of the existing timber wharf and jetties, capital dredging (to

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:1: disposal of dredged sediments and construction and operation of a new quay (to be set back into

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:1: dredging concept for the proposed scheme (the concept design for the proposed quay is ongoing,

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:2:and jetties, capital dredging (to deepen the Tees Dock turning circle and approach channel and to create

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:2:a berth pocket), offshore disposal of dredged sediments and construction and operation of a new quay (to

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:3: Dredging

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:6: Benthic ecology It is advised that a habitat survey should occur within the dredge footprint to identify any important benthic habitats or species.

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:6: The Tees has been subject to dredging in the recent past meaning the potential for archaeologically significant deposits or features to be impacted in

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:7: • Dredging of the River Tees;

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:7: The applicant should consider the methodology to be used, the disposal of dredged material, and the timing of works. Decisions should be underpinned

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:7: Dredging and disposal

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:8: The disposal site must be specified, ensuring that it has taken capital dredge material before, and can accept the total proposed amount of dredge

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:8: for disposal to sea (and to inform the impact assessment). Any material to be dredged and disposed of within licenced disposal areas at-sea must not

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:8: The MMO would support the consideration of using the dredged material for beneficial use. This could include recharge of intertidal areas elsewhere in

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:8: Specific information on the dredging and piling activities will be required, including the duration of works and anticipated working hours, the likely noise

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:8: The proposed works overlap with the Northern Gateway Terminal project. The applicant has estimated that the works will require a capital dredge of 2.5

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:8: million cubic metres (m3) of material. The applicant has stated that this will be reduced to 1.6 million m3 of capital dredge material if the works are carried

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:8: out alongside the Northern Gateway project (capital dredge of 4.5 million m3).

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:11:from the proposed dredging and disposal activity by coupling a sediment plume model built in MIKE21-MT

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:11:be run for the entire dredging period under astronomic tidal and daily mean fluvial flow conditions.

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:11:(in particular the effect of resuspension and dispersion of sediment during dredging and disposal activities).

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:12:disturbance would be from dredging and vessel transits which are a regular occurrence in the Tees.

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:12:Maintenance dredging is undertaken on a very regular throughout the Tees estuary and therefore

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:12:significant underwater noise disturbance effects are not anticipated due to the proposed capital dredge.

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:15: 4.19. Offshore disposal of dredged material

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:15:offshore disposal of dredged material.

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:15:The potential impact of the disposal of dredged material will be assessed in the context of Cefas records

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:15:dredged material from other consented projects.

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:17:Appendix 1 Preliminary dredging concept for the current scheme being progressed by STDC

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: 3. ALL DREDGE SLOPES ARE ASSUMED TO BE 1:3. TO BE

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: 7. PROPOSED SCHEME AVOIDS DREDGING OVER THE

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: DREDGE DEPTH WILL NEED TO INCREASE BY THE

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: MAINTAINED DREDGE LEVEL -10.4mCD

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: DESIGN DREDGE LEVEL -11.0mCD

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: PRELIMINARY DREDGING

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: MAINTAINED DREDGE LEVEL -10.4mCD BM CF TJR

R-2020-0684-ESM-PC1084-RHD-SB-EN-NT-EV-1106_Appendix 2_Scoping note.pdf:18: DESIGN DREDGE LEVEL -11.0mCD DATE SCALE REF.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:1: dredging.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:1: • Impacts on marine ecology from increased suspended sediment during capital dredging and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:1: smothering as a result of dredging.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:1: • Impacts on marine communities due to changes in the maintenance dredge regime.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:1:from invasive species, through activities such as maintenance dredging, shipping ballast water exchange,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:4: dredging, can have a large effect upon habitats such as intertidal muds

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:5:The majority of the proposed dredge footprint is located within the subtidal zone. However, given the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:5:proposals to locate the quay in the riverbank (i.e. on existing land), dredging and excavation in front of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:9: would be indirectly affected (e.g. through sediment deposition during capital dredging).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:9: a 5mm cod end, with the trawls evenly distributed across the dredge area. Fish, shrimp and other

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:9:between the dredge footprint for the two schemes, specifically at Tees Dock turning circle. Results from the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:10: Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:16:PDT would continue to undertake maintenance dredging of the river to maintain the advertised dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:9.5.1 Direct loss of habitat due to demolition of existing structures and dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:9.5.1.2 Capital dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:The proposed capital dredging would result in direct impacts to existing areas of intertidal and subtidal

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:habitat that lie within the proposed dredge footprint, which are certain to occur.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:It is recognised that the proposed dredge footprint is within close proximity to the North Tees mudflat, which

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:the assumed side slopes to be created as part of the proposed dredge, no direct or indirect impact to this

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:The impact on the subtidal from the proposed dredging activities within the existing channel and part of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:is expected to recover following the dredging activities being carried out. However, in the short term, the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:17:benthic community would be removed from areas where dredging will be carried out.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:18:However, the capital dredging that will take place to create the berth pocket, and the rock blanket that will

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:18:wall during operation is estimated to be 5ha. The area of subtidal to be disturbed by the dredging activities

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:18:dredging. As mentioned in Section 9.4.4, as there was no clear dominance of a single species, information

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:18:dredging, recruiting from the surrounding population within the year (Diaz-Castaneda et al., 1989), although

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:18:disturbance/substratum loss (i.e. from maintenance dredging). Based on these, MarLIN reports a medium

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:18:The benthic community is expected to be somewhat sensitive to physical habitat loss from the dredging of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:19:overall sensitivity of high has been assigned on a conservative basis. The dredging activities will result in

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:19:dredging activities, the magnitude of this impact on the benthic community and habitat is considered to be

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:19:as a result of habitat loss caused by dredging would be of moderate adverse significance.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:19:the Tees estuary which could be directly impacted by the proposed dredging activity (MarLIN, 2020).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:19:Some of the mudflat that will be lost as a result of the proposed dredge / excavation is classified as Priority

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:19:nature of the habitats within the Tees. Although the loss of the intertidal due to the dredge / excavation

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:It is recognised that the proposed dredge is a key component of the proposed scheme, and as such the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:dredging has been minimised as far as possible, within the constraint of delivering a development that meets

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:9.5.2 Effects of increased suspended sediment concentrations during dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:Dredging of approximately 1,800,000m3 of material will be required for the proposed scheme, over half of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:which will be for the creation of the berth pocket. Approximately 155,000m3 of this will be dredging of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:intertidal (defined as between Mean Low Water and Mean High Water). The proposed dredging activities

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:as a result of dredging (at a level exceeding the respective EQSs of relevant contaminants) (Section 7.5.3).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:resuspended sediment which does not contain elevations beyond Action Level 2). The dredged sediment

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:In general, sediment plumes induced by dredging are considered to pose only a limited risk to water quality

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:accommodate an increased oxygen demand, particularly where dredging takes place in open sea or

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:dredging periods. The sediment plume generated by dredging would likely be dispersed by tidal currents

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:20:away from the dredging location. The dispersion would either be upstream on the flood tide or downstream

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:For both types of dredger (backhoe and TSHD), peak suspended solids concentrations are predicted in the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:immediate vicinity of the dredger. Sediment plume modelling predicts different plume extents and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:suspended sediment concentrations depending on the stage of dredging (as described in Section 6). In all

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:cases, the sediment plume is predicted to be very narrow within the river, with the phase of dredging with

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:the highest concentrations predicted to be 100-200 mg/L within the vicinity of the dredger, reducing to 10-

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:All plumes associated with different stages of dredging in the vicinity of the proposed new quay are confined

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:to the southern bank of the river, whilst all plumes associated with dredging of the turning circle are confined

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:(Figure 6.51), it was only during Stage 4 of the dredging (related to dredging of the turning circle) that any

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:21:the proposed dredge is considered to be of low sensitivity to increases in suspended sediment.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:The dominant sediment biotope present within the dredge footprint is EUNIS biotope A5.323, Nephtys

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:9.5.3 Effects of smothering following dredging on marine species and habitats

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:During the capital dredging a proportion of the material that is dredged would be disturbed and re-suspended

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:material during dredging is described in Sections 6 and 7.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:The proposed dredging footprint of the scheme is considered to be relatively limited; restricted to the direct

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:mentioned in Section 9.5.1.2, the estimated area to be disturbed directly as a result of the dredging activities

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:Some of the sediment that is suspended as a result of the dredging activities will be deposited to the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:riverbed, either soon after disturbance occurring during the dredging operation (for coarser-grained

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:22:on the riverbed within the dredging footprint, whilst the deposition that occurs in other parts of the river is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:23:Any smothering caused by the proposed dredging activities is not predicted to result in the deposition of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:23:sediments at Seal Sands, Bran Sands or North Gare Sands, due to the limited footprint of dredging activities,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:23:potentially be affected. It is predicted that the proposed dredging would not give rise to the loss of a

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:24:of ship wash and maintenance dredging where required) due to the shipping activities during operation and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:level rise. In the main channel the deposition will require periodic dredging to maintain the design depths.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:Changes to the cross-sectional area of an estuary due to capital dredging creation of a new subtidal area

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:9.6.3 Change in maintenance dredging regime affecting marine communities

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:dredging will not change. The areas that are being proposed to be maintenance dredged for the scheme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:are all areas that are currently already being dredged regularly; there will be no change in the extent of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:seabed affected by maintenance dredging, with the exception of the newly created berthing pocket.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:continuously be disturbed by shipping activity and maintenance dredging and, therefore, this will prevent

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_9. Marine ecology.pdf:25:communities as a result of the maintenance dredging requirement arising from the proposed scheme.

R-2020-0684-ESM-PC1084-RHD-SB-DN-DR-C-1380_P01.pdf:1: BERTH POCKET DREDGING AREA BERTH POCKET DREDGING AREA

R-2020-0684-ESM-PC1084-RHD-SB-DN-DR-C-1380_P01.pdf:1: CHANNEL DREDGING AREA CHANNEL DREDGING AREA

R-2020-0684-ESM-PC1084-RHD-SB-DN-DR-C-1380_P01.pdf:1: DREDGING AREA

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:3:5.2 Alternative dredging plant 5

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:3:5.3 Alternative dredge depths 6

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:4:7.21 Offshore disposal of dredged material 16

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:5:In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of dredged

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:5:1113 shows the proposed dredge (and excavation in front of the proposed quay wall) footprint.

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:6: BERTH POCKET DREDGING AREA BERTH POCKET DREDGING AREA

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:6: CHANNEL DREDGING AREA CHANNEL DREDGING AREA

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:6: DREDGING AREA

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: AREA DREDGED

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: DREDGE TO -11.0mCD

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: DREDGE TO -15.6mCD

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: DREDGED TO -11mCD MUDFLATS

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: AREA DREDGED S3

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: AREA DREDGED

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: DREDGED TO -11mCD

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: PHASE 1 UPSTREAM AREA DREDGED

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: AREA DREDGED

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:8: DREDGING PLAN

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:9: • Capital dredging of approximately 1,800,000m3 of marine sediments with offshore disposal into

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:9: the Tees Bay C disposal site. It is proposed that dredging is undertaken using a trailing suction

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:9: hopper dredger (TSHD) and a backhoe dredger.

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:9:5.2 Alternative dredging plant

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:9:There is likely to be a requirement to utilise a number of different types of dredger depending on the nature

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:9:of the material being dredged. Therefore, for different parts of the dredging it will be necessary to use a

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:9:TSHD or backhoe. The environmental implications of using these dredgers have been assessed and no

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:10:5.3 Alternative dredge depths

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:10:The proposed dredged depth in the navigation channel has been chosen to maximise the tidal window to

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11: • Offshore disposal of dredged material.

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11:The capital dredging of the river and the offshore disposal of dredged sediments both will cause plumes of

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11:sediment to form. The plume effects arising from the river dredging are characterised by a short-lived

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11:dredging activity, followed by a general dispersion in spatial extent and reduction in concentration over

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11:following hours. Since the dredging is a near-continuous operation, the plume effects will be observed

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11:throughout much of the approximately four-month period, but at varying extents depending on the dredging

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11:During operation of the new quay, the quay alignment and capital dredging of the river will not significantly

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:11:capital dredging. There are no predicted changes in water level or wave conditions near the site or in the

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:deposition rates and hence a requirement for more sediment to be dredged annually from this local reach.

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:However, even under this scenario, the maintenance dredging from the reach local to the new quay will

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:make a very low overall contribution to the net annual maintenance dredging requirements from the estuary

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:as a whole. Therefore the potential increase in maintenance dredging requirement is not expected to be

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:significant and could easily be managed within existing maintenance dredging and offshore disposal

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:a result of the proposed dredge. However, on further consideration of the potential impact, the risk of

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:Best practice measures would be adopted during the dredging process to minimise the potential for

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:12:resuspension of sediments. Such measures include dredging in long strips to ensure the plume is located

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:13:and capital dredging, increased suspended sediment concentrations and increased sediment deposition.

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:13:with maintenance dredging. All operational phase impacts are predicted to be of negligible significance,

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:14:to marine mammals from dredging has been assessed as negligible. The assessment has concluded

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:14:Although there will be a small temporary increase in construction-related vessel traffic during dredging and

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:15:Adverse impacts may be expected as a result of temporary increases in SSC during the capital dredging

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:15:Alteration of subtidal habitat due to the proposed dredge is expected to be temporary and would be similar

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:15:to that already experienced through regular maintenance dredging that is already undertaken within the

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:15:Based on the expected underwater noise levels associated with capital dredging activities, sound thresholds

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:15:will already be habituated to regular dredging noises within the estuary and a minor adverse impact is

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:16:fishing activity as a result of the proposed scheme. As the channel is dredged on an almost daily basis, the

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:16:potential conflicts in the same way as routine dredging and other construction activities, through co-

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:16:ordination between STDC, the appointed Contractor and the Harbour Master. Management of dredging

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:17:(dredging and construction of the new quay) are in keeping with the historic (and current) character of the

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:17:previous dredging. Archaeological material may still survive, albeit fragmentary and dispersed, or potential

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:20:7.21 Offshore disposal of dredged material

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:20:It is proposed that all dredged material would be disposed of offshore at the Tees Bay C offshore disposal

R-2020-0684-ESM-PC1084-RHD-ZZ-XX-RP-Z-1108_NTS.pdf:20:Based on the findings of hydrodynamic and sedimentary plume modelling, the disposal of dredged material

R-2020-0684-ESM-2020 12 17 South Bank Wharf 1 RecNOnDet .pdf:1:CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND ASSOCIATED WORKS

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:2:the basis of the potential extent of the dredging and disposal plumes.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:3: Proposed quayside works and dredging at its North Sea supply base Approximately

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:3: The NGCT scheme comprises capital dredging up to 4.8 million m3

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:3: disposal of dredged material offshore, construction of a new 1.5km The NGCT scheme is located in very close

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:3: NGCT elements (buildings, rail terminal, road access, lighting, drainage Dredge footprint therefore is screened into the CIA.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:3: • dredging up to 750,000m3 of material from the approach

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:4: • dredging up to 372,000m3 of material from the approach

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:4: In addition to the proposed dredge (and associated disposal of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:4: dredged material), PDT is proposing to construct an underwater

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:4: being undermined following the proposed dredge.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: nature of this activity, maintenance dredging and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: for the area. However, maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: dredging at Hartlepool This activity has been ongoing for many years. 0km capital dredging activity required for South Bank

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: dredging at Hartlepool channel as the effects of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: 1 and Dolphin D, and a dredge of the river bed adjacent to the Consent in place small scale that there would be no significant

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: (with associated disposal of dredged material) to extend the existing dredge footprint cumulative impacts.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: Given that the dredge footprint largely overlaps

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: dredging in Tees Dock, which, given its location,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: The Tees Channel Dredge project involves a proposed deepening of would have no means of affecting the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: maximum maintained depth of 14m below CD. An Environmental estuary system), the area would be dredged by

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: Tees Channel Dredge Scoping Report (Royal HaskoningDHV, 2016) was submitted to the 0km either the South Bank project or the Tees Channel

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: MMO alongside a request for a scoping opinion for the project in Dredge project (not both). This removes the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:5: report has not yet been undertaken. Tees Channel Dredge project, therefore, has not

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:6: • Dredging of the existing berth and disposal of dredged

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: The MMO sees the proposed dredge as a

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: maintenance dredge activity. Given the frequency,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: PDT is proposing to undertake a dredge of the approach channel to dredging, maintenance dredging and disposal is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: MMO has confirmed that PDT should submit a variation request to However, the proposed dredge could be

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: Tees channel dredge its existing maintenance dredge licence in order to dispose of the undertaken at the same time as the capital

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: dredged material (i.e. the MMO sees the proposed dredge as a dredging activity required for South Bank (albeit

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: maintenance dredge activity). PDT’s intention is to undertake the within a different part of the estuary).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: dredge during 2020/2021.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:7: under the ‘maintenance dredge’ umbrella

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:American Harbour Facilities schemes and the ongoing maintenance dredging in the Tees estuary:

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11: • dispersion of suspended sediment during capital dredging and deposition at the offshore disposal

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:Maintenance dredging at Hartlepool and within the Tees estuary has been on-going for many years. Given

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:the frequency, duration and the ongoing nature of this activity, maintenance dredging and disposal is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:Dispersion of suspended sediment and deposition on the seabed during capital dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:All projects scoped into the CIA involve will involve capital dredging. This activity will create a plume of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:During the capital dredging works for the proposed scheme, other port facilities on the Tees will remain

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:operational. Maintenance dredging is, therefore, expected to continue throughout the capital dredge period.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:The capital dredge is also expected to influence the maintenance dredging requirements during and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:The extent of the sediment plume created by capital dredging is heavily dependent on the dredging plant

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:11:that is adopted, and this is determined by (amongst other factors) the nature of the bed and the dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:likely dredge plant that would be adopted and, in some cases, assumed that different types of plant would

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:be used for dredging different sediment types as part of the same project. As noted in Section 6.5.2, it is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:affected by a plume at some point during the dredging or disposal activities (in some areas this will be on a

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:of sediment plume dispersion and deposition onto the river and/or seabed during capital dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12: Combined maximum zone of influence from Stages 1 - 4 inclusive of the dredging activities

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:NGCT TSHD dredging sand in the approach channel in low river flow, spring tide

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:sediment in the water column was predicted to be in close proximity to the dredger, with plume dispersion

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:dredging (and reclamation for NGCT) over the slack water period. In practice, much of this deposited

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:material will be re-dredged as part of the capital works for each scheme. At the peripheries of each plume,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:12:It should be noted that the potential for cumulative effects only arises should the dredging for the proposed

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:13:(right) as a result of the proposed scheme [Note: plots show sediment plume impacts arising from dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:13:activities during Stages 1 - 4 inclusive of the capital dredging programme]

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:The potential impacts of the maintenance dredging programme in the Tees are considered within the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:Maintenance Dredging Baseline Document (Royal Haskoning, 2008). This consideration is specifically in

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:the context of the implications of maintenance dredging for the Teesmouth and Cleveland Coast SPA and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14: • effect of increases in suspended sediments during maintenance dredging on food resources of SPA

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14: • increased noise levels (disturbance) during maintenance dredging.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:The Maintenance Dredging Baseline Document 2008 concluded that maintenance dredging represents a

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:potential supply of fine material to Seal Sands, with the timing of maintenance dredging in relation to the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:however, the Maintenance Dredging Baseline Document concluded that the maintenance dredging activity

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:The WFD assessment presented in the latest annual update to the Maintenance Dredging Baseline

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:Document (Royal HaskoningDHV, 2019) concluded that, at water body level, maintenance dredging at

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:capital dredging have been proposed for the Anglo American Harbour facilities and the NGCT. For the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:former project, mitigation comprises the use of specialist dredging equipment (i.e. an enclosed grab loading

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:into a sealed barge) for dredging of unconsolidated material to minimise resuspension in the water column.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:14:This requirement is specified because of the elevated concentration of contaminants within the dredged

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:15:will be no impact on tidal propagation or water levels due to the limited area of proposed dredging for this

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:15:channel in the lower estuary that will arise from capital dredging for the NGCT.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:15:that the proposed new quay alignment and capital dredge will not significantly affect the existing baseline

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:15:the dredging is predicted to draw some of the flow to the south side of the estuary, although such effects

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:16:require periodic dredging to maintain the design depths (a 10% increase in annual maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:16:proposed dredge).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:16:offshore; with the potential to increase the maintenance dredging requirements by about 10%. No increase

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:16:used for, maintenance dredging, and no effect on sediment supply to intertidal areas throughout the Tees

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:16:The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:16:material to Seal Sands. However, the latest annual update to the Maintenance Dredging Baseline

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:16:maintenance dredging regime could adversely affect the overall estuary morphology and the ongoing

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17:maintenance dredging in the Tees estuary as follows:

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17: • dispersion of suspended sediment during marine works, dredging and disposal; and,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17:cumulative effects only arises should dredging for each scheme coincide. Under such circumstances, the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17:timing of the projects and their respective programmes of capital dredging will coincide to result in a scenario

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17:across the estuary and navigational safety is unlikely to support dredging on different sides of the estuary

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17:In terms of maintenance dredging, there is the possibility that maintenance dredging could occur at the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17:relatively localised effects to the dredger produced in the hydrodynamic modelling assessment for the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:17:similar throughout the estuary where regular maintenance dredging occurs. As a result, and noting the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:18:within the footprint of the proposed scheme, where the intertidal area will be dredged to create the berth

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:18:capital dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:18:Sediment deposition resulting from the dredging for the proposed scheme will largely be within the proposed

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:18:dredged footprint. Deposition that occurs in other parts of the river is predicted to be much lower, typically

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:18:are largely similar; however, the effect of the NGCT dredge is larger, with deposition predicted to extend

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:19:Maintenance dredging is targeted at areas that require dredging to maintain navigable depths and, although

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:19:Based on the above, it is concluded that there will be no cumulative effect on the maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:19:modelled for piling and dredging for the Hartlepool approach channel (Table 27.3).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:19:dredging based on NMFS (2018) criteria for Hartlepool approach channel scheme modelling

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:19: during dredging South Bank Harbour porpoise 153 dB re 1 µPa HF SELcum 0.7km

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:20:dredging at the proposed South Bank scheme, NGCT, Hartlepool approach channel and Anglo American

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:20:temporary auditory injury (TTS) or a fleeing response from cumulative impacts of piling and dredging at the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:20: during dredging – III Block O density of 0.888/km2.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:21: during piling and dredging – density of 0.01/km2. population anticipated to be

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:21:or dredging noise from the proposed scheme, NGCT, Hartlepool approach channel and Anglo American

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:21:disturbance as a result of cumulative underwater noise impacts from piling and dredging activities on

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:22:dredging activities on marine mammals

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:22: dredging at the Negligible /

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:22: • Ongoing maintenance dredging.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:22: • Tees channel dredge.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:of the proposed scheme, should it be undertaken at the same time as the dredging required for the NGCT,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:dredging works that exist within the Tees estuary. As stated in Section 12.5.2, the main receptor that may

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:In order for a potential cumulative impact to manifest, the dredging campaign for the proposed scheme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:would need to coincide with at least one of the other dredging campaigns noted above, and both would need

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:this occurs, the zones of influence from dredging would create an additive effect, as demonstrated in

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:more dredge campaigns ongoing at any one time.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:(i.e. dredging along the axis of the river rather than across it to ensure that, at any one time, sediment

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:Anglo American Harbours facilities scheme, specialist dredging equipment (i.e. an enclosed grab loading

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:into a sealed barge) will be used for dredging of unconsolidated material to minimise resuspension in the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:Stage 2 of the proposed capital dredging coincide with the Hartlepool Channel deepening works, the two

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:dredging plumes together will still affect only around 0.5% of the SPA subtidal habitat (Royal

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:24:HaskoningDHV, 2015)). However, the additive effect of the sediment plumes from separate dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:Changes in marine water quality due to dredging activity

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:require dredging, including the NGCT, Anglo American Harbour Facilities and the ongoing maintenance

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:dredging works. The main receptors that may be affected by this cumulative effect are migratory species,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:Should two or more of the dredging campaigns for the proposed scheme, the NGCT scheme, the Anglo

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:American Harbour facilities scheme and the ongoing maintenance dredging be undertaken simultaneously,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:and preventing migration, should the dredging be undertaken during the peak migration season.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:scheme in Section 13.5.1 (i.e. dredging along the axis of the river, rather than across it to ensure that, at

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:25:of the sediment plumes from separate dredging campaigns cannot be completely avoided if the campaigns

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:Underwater noise from the proposed scheme is predicted to arise from both dredging and land-based pile

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:the land-based piling, there may be minor adverse impacts from the dredging noises which could potentially

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:Should the dredging campaign for the proposed scheme coincide with dredging from one or more of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:NGCT scheme, the Anglo American Harbour facilities scheme and the ongoing maintenance dredging, the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:Given the regularity of maintenance dredging within the channel, resident and migratory fish in the estuary

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:reduce the magnitude of impacts from individual dredges. It has to be recognised that underwater noises

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:in isolation, though it is highly unlikely that there would be more than one or two dredge campaigns ongoing

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:American Harbour Facilities scheme. The South Bank dredge footprint will pass adjacent to the site of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:26:Anglo American Harbour Facilities and the NGCT dredge footprint (overlapping with the proposed dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:27:to this are the dredging footprint for the Tees Dock turning circle (which is also included as part of NGCT

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:28:dredge footprint), and the landward part of the proposed scheme of this application (which overlaps in part

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:28:However, as the dredging for the turning circle will only take place once, either for NGCT or for the scheme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:32:27.5.22 Disposal of dredged material

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:32:The proposed scheme involves the requirement to dispose of up to 1,800,000m3 of dredged material

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:32:offshore, should no beneficial re-use options be forthcoming prior to the dredge taking place. Section 26

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_27. Cumulative impact assessment.pdf:32:concludes that the disposal of dredged material will have a negligible impact on fisheries, marine ecology

R-2020-0684-ESM-DECISION NOTICE.pdf:1: CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND

R-2020-0684-ESM-DECISION NOTICE.pdf:1: PC1084-RHD-SB-EN-DR-EVC-1113_P01 Dredging Plan received by the LPA on

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:3:3.6 Capital dredging of marine sediments and excavation of soils / landside materials within

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:3:3.8 Disposal of dredged material 17

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:7:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL 470

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:7:26.2 Modelling the dispersion and deposition of capital dredged material and effect on water

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:8:28.5 Detailed assessment – C2 Capital dredging 522

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:9:In summary, the proposed scheme comprises demolition, capital dredging, offshore disposal of dredged

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:9:dredge and disposal activities).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:9: which covers the potential zone of influence of both the dredge and disposal activities.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_1. Introduction.pdf:10: P roposedDredg

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_21_Socio-economics.pdf:18:dredging activity which are likely to translate to very small direct employment effects. As such, adopting the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_21_Socio-economics.pdf:18:occur during demolition, quay construction, excavation and dredging phases. Assuming a gradual ramping

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_20. Flood risk and coastal defence.pdf:4:comments on their requirements when considering the potential impact of dredging on the estuary, the need

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_20. Flood risk and coastal defence.pdf:6:namely the proposed dredge footprint, is in Flood Zone 3, associated with the 1 in 200-year return period

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_20. Flood risk and coastal defence.pdf:7: 3.7 * The proposed dredge footprint at the Tees Dock

R-2020-0684-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: AREA DREDGED

R-2020-0684-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: DREDGE TO -11.0mCD

R-2020-0684-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: DREDGE TO -15.6mCD

R-2020-0684-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: DREDGED TO -11mCD MUDFLATS

R-2020-0684-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: AREA DREDGED S3

R-2020-0684-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: AREA DREDGED

R-2020-0684-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: DREDGED TO -11mCD

R-2020-0684-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: PHASE 1 UPSTREAM AREA DREDGED

R-2020-0684-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: AREA DREDGED

R-2020-0684-ESM-PC1084-RHD-SB-EN-DR-EV-1113 - DREDGING PLAN.pdf:1: DREDGING PLAN

R-2020-0684-ESM-ApplicationFormRedacted.pdf:2:Demolition of existing redundant quay structures, capital dredging and development of new quay and associated works (Phase 1).

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:1: 4.6.3 Dredging and Disposal ………………………………………………………………. 11

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:2:quays; dredging of the River Tees to provide a berthing pocket, deepned approach

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:7:It is advised that a habitat survey should occur within the dredge footprint, so to

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:7:The River Tees has been subjected to dredging in the recent past, meaning that the

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:9:The MMO would expect water quality is to be scoped into the ES, as the dredging

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:9:  Dredging of the River Tees;

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11:4.6.3 Dredging and Disposal

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11:Dredging has the potential to cause negative impacts on the water environment. It

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11:habitats, impacting upon tern foraging and migratory fish populations. Dredging

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11: The applicant should consider the methodology to be used, the disposal of dredged

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11:dredge material before, and can accept the total proposed amount of dredge

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11:sea (and to inform the impact assessment). Any material to be dredged and

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11:Due to the quantity of material proposed to be dredged, it is advised that the plan for

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:11:The MMO would support the consideration of using the dredged material for

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:12:information on the dredging and piling activities will be required, including the

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:12:applicant has estimated that the works will require a capital dredge of 2.5 million

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:12:1.6 million m3 of capital dredge material if the works are carried out alongside the

R-2020-0684-ESM-EIA_Scoping_Response_EIA201900017_FINAL.pdf:12:Northern Gateway project (capital dredge of 4.5 million m 3).

R-2020-0684-ESM-HIGHWAYS ENGLAND.pdf:3:DREDGING AND DEVELOPMENT OF NEW QUAY AND ASSOCIATED WORKS (PHASE

R-2020-0684-ESM-HIGHWAYS ENGLAND.pdf:7:including Environmental Statements for the demolition of existing redundant quay structures, capital dredging and

R-2020-0684-ESM-HIGHWAYS ENGLAND.pdf:10: • Dredging to create a berth pocket and construction and operation of a new quay;

R-2020-0684-ESM-HIGHWAYS ENGLAND.pdf:11:these associated with off-shore dredging, and therefore would not travel to the site. The remaining 100 are

R-2020-0684-ESM-21 02 05 - Quayside Application.pdf:1: DEMOLITION OF EXISTING QUAY STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT OF NEW

R-2020-0684-ESM-21 02 05 - Quayside Application.pdf:1: DEMOLITION OF EXISTING QUAY STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT OF NEW

R-2020-0684-ESM-21 02 05 - Quayside Application.pdf:1: approval can be granted for the proposed works, both landside and the dredging proposals in the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_11. Terrestrial ecology.pdf:16: P roposedDredg

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_11. Terrestrial ecology.pdf:23:vessels or disturbed by underwater noise or dredging activities. The vessels used in construction activities

R-2020-0684-ESM-61586 Quay Design and Access Statement November 2020.PDF:1: “Demolition of existing redundant quay structures, capital dredging and development of new

R-2020-0684-ESM-61586 Quay Design and Access Statement November 2020.PDF:2: • The Seaward Works – these comprise dredging of the approach channel and berth pocket,

R-2020-0684-ESM-61586 Quay Design and Access Statement November 2020.PDF:2: the disposal of the dredged material at sea. Planning consent is not required for these works

R-2020-0684-ESM-61586 Quay Design and Access Statement November 2020.PDF:5: dredging to create a berth pocket and construction and operation of a new quay (to be set back

R-2020-0684-ESM-61586 Quay Design and Access Statement November 2020.PDF:6: required (90m wide) and the associated dredging requirements. Consultation with PD Ports’

R-2020-0684-ESM-61586 Quay Design and Access Statement November 2020.PDF:6: There would, therefore, be a requirement for dredging of estuarine (marine) sediments and

R-2020-0684-ESM-61586 Quay Design and Access Statement November 2020.PDF:6: scheme (and consequently the dredging requirements) has been designed to avoid the pipe

R-2020-0684-ESM-61586 Quay Design and Access Statement November 2020.PDF:7:6.3 The Phase 1 quay wall would extend 125m either side of the berth pocket to retain the dredged

R-2020-0684-ESM-61586 Quay Design and Access Statement November 2020.PDF:7: dredging will need to take place as part of each phase.

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1111_Appendix 1_Waste Report.pdf:14:In summary, the proposed scheme consists of demolition of the existing wharf and jetties, capital dredging

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1111_Appendix 1_Waste Report.pdf:15: • Dredging and offshore disposal of marine sediments.

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1111_Appendix 1_Waste Report.pdf:15:The proposed scheme (and consequently the dredging requirements) has been designed to avoid the pipe

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1111_Appendix 1_Waste Report.pdf:32:Dredged sediment is proposed to be disposed offshore; this will be subject to a marine licence from the

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1111_Appendix 1_Waste Report.pdf:32:MMO. Should it be determined by the MMO’s advisors that the dredged sediment is not suitable for offshore

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_17. Noise and vibration.pdf:6: Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_17. Noise and vibration.pdf:12: • Dredging; and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_17. Noise and vibration.pdf:14: Dredging THSD/backhoe 1 C7.2 60 110.3

R-2020-0684-ESM-EP CL.pdf:1: STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:1: • Dredging;

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:1: • Capital dredging (removal activity).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:1: • Offshore disposal of dredged material (deposit activity).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:1:The proposed dredge footprint is located predominantly within an area subject to maintenance dredging by

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:1:of the existing maintenance dredge footprint, and therefore a variation to the licence held by PDT is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:1:envisaged to increase the source area of maintenance dredged material following construction of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:4:Options for the disposal of waste (i.e. the material to be dredged from the approach channel, turning circle

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:4:investigated in accordance with the waste hierarchy. Possible alternative options for dredged material have

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_4. Legislative framework.pdf:5: • Policy NE-DD-3 – proposals for the disposal of dredged material must demonstrate that they have

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:3: o Forty-one-week dredging campaign of the channel, turning area and berthing pockets.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:6:Table 3: Estimated Construction Vessel Movements and Dredge Volumes……………………………………. 6

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:6:Table 5: Construction Phase Dredging Vessel Movements ………………………………………………………….. 8

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:8: BHD Backhoe Dredger

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:8: EGD Enclosed Grab Dredger

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:8: TSHD Trailing Suction Hopper Dredger

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:9:The construction phase requires dredging of the Tees Dock Turning Area the Navigable Channel

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:10: PC1084-RHD-SB-DN-RP-ME-1353_P01_Dredging Study.pdf

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:10: PC1084-RHD-SB-DN-DR-C-1381_P01 Dredging Plan.pdf Concept Design Dredging Plan

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:10: including dredging and

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:12:The proposed South Tees development project and associated dredging areas are shown within Figure

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:14: o Dredging of the; turning area, berthing pocket and adjacent approach channel (Figure

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:14:The primary activity associated with the construction phase is the dredge campaign which will include

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:14:the dredging of a section of the River Tees approach channel and turning area to depths of -11m CD

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:14:and a berthing pocket of -15.6m CD (see Figure 1). The dredge campaign will utilise an Enclosed Grab

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:14:Dredger (EGD), a Backhoe Dredger (BHD) and a Trailing Suction Hopper Dredger (TSHD) each

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:14:supported by two barges. The estimated duration, number of movements and dredge volumes are

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:14:Table 3: Estimated Construction Vessel Movements and Dredge Volumes

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:14: Total Dredge Volume

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:14: Dredging Phase Phase

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:15:dredging campaign will commence which is scheduled to run for 41 weeks as shown in Table 5 (Phase

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:15:1 for 18 weeks, Phase 2 for 23 weeks). Phase 2 dredging is scheduled to commence approximately 24

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:15:weeks after completion of Phase 1 dredging.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:15:Soft and hard materials will be loaded into barges at the dredge site and then transported to licensed

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:16:Table 5: Construction Phase Dredging Vessel Movements

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:16: THSD Dredging/Disposal 0 0 0 0 0 0 0 66 66 66 66 66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 66 66 66 66 66 66 66 0 0 0 0 0 0 0

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:16:*Phase 2 dredging to commence approximately 24 weeks after completion of Phase 1 dredging.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:20: Including; project and port dredgers, tugs, pilot boats, workboats, PD Ports

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:25:channel dredged to 10.4m.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:31: Dredger

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:39: Initially conceived in 2000. Container terminal dredged to 15m berth pocket.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:40: phase if the dredgers are very large.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:40: Post dredge surveys and Charts to be updated to include new berths and

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:40: promulgation. berthing pockets and in-channel dredge depths.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:40: C&O Hold regular meetings with dredge contractors

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:40: 5 during dredging operations. Issue Notice To

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: 21 Contact Contact berth - Tanker 5.10 35 Grounding Grounding - Workboat (Including Dredgers) 2.07

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: Collision - Workboat (Including Dredgers) ICW Workboat Incident 1.81

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: (Including Dredgers) 4.07 39 Mooring Incident - General Cargo vessel

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: 3 Collision Collision - Tanker ICW Workboat (Including Dredgers) 3.79 Contact - Workboat (Including Dredgers) with Navigation

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: Dredgers) 3.79

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: Dredgers) 3.53 40 Mooring Incident - Workboat (Including Dredgers)

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: Collision - Workboat (Including Dredgers) ICW Project Incident 1.31

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: 23 Contact Contact berth - Workboat (Including Dredgers) 3.16 Incident 1.26

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: 43 Foundering Foundering / Swamping - Workboat (Including Dredgers) 2.38

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:45: Collision - Workboat (Including Dredgers) ICW

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:48:operation phase followed by workboats, driven by an increase in frequency of dredgers in the

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: • Project layout, navigation chart and vessel movement / dredge schedule

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: Dredging

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: • 3-week berth dredge will require pilotage. The vessels utilised for the rest

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: of the dredging campaign will not require pilotage. Windfarm/ heavy lift

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: • Dredge to 23-buoy would allow 11m draught vessels to manoeuvre. The

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: existing dredge plan would not allow deep draught vessels to manoeuvre

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: • It was questioned whether the turning circle would be dredged? If the

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: need to be dredged. The turning circle is currently dredged to 8.8m. If

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:65: the turning circle is not dredged the existing Teesport regulations will

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:66: the previous dredging campaign undertaken within the river. It was

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:66: sometimes difficult to get the hopper dredgers to move out of the way,

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:66: risk area. This will be particularly important if the dredgers are very large.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:66: on board the dredgers and construction vessels.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:66: within the channel dredging will increase water depths, and existing

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:66: turning circle at its current dredge levels.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:68: • Project layout, navigation chart and vessel movement / dredge

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:68: pipelines), the South Tees Linklines, lies under the dredge area at the

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:68: • Potential for collision between construction vessels / dredgers

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:68: • Risk of damaging pipeline during dredging operations.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:69: • Flagged as an additional consideration as proposed dredging in

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:70: • Dredging / construction phase and post-works operation phase to

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:70: Dredging programme discussed.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:70: manageable. Recent experience of dredging showed that VTS

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:70: development site is a SSSI and the dredge comes very close to the

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:70: • Channel dredge goes over the top of two pipeline tunnels, depth

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:70: dredging.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:71: • Initially conceived in 2000. Container terminal dredged to 15m

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:71: • Dredger should show RAM shapes / lights.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:71: dredger while loading.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:71: following dredging.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:72: • Hold regular meetings with dredge contractors during dredging

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:72: pilotage would be required for the suction dredger works.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:73: • Project layout, navigation chart and vessel movement / dredge schedule

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:73: dredging in the Tees dock.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:73: (such as channel dredging) cause operational delays (for example at the

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:74: • Project layout, navigation chart and vessel movement / dredge schedule

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:74: • No change (risk should decrease following dredging).

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:75: • Svitzer questioned if any of the river would be shut -off during dredging

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:77: Tanker dredging operations. spillage or small gas release

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:77: dredging operations.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:77: vessel / dredging declared but criteria not Moderate damage to property;

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:77: operations / dredging necessarily met; Very No effect of note. Tier 1 may

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:77: Dredgers) Dredgers)

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:78: dredging operations. not necessarily met; Very

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:78: Collision - Tanker vessel / dredging to property; No effect of property; No effect of note.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:78: ICW General General Cargo dredging operations. declared but criteria not within site; Adverse

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:79: Cargo Vessel vessel / dredging

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:79: Dredgers) necessarily met; Very Adverse regional publicity.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:79: Dredgers) and disembarkation

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:79: ICW Project dredging operations. not necessarily met; Very Adverse international publicity.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:79: General vessel / dredging to property; No effect of property; No effect of note.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: (Including Dredgers)

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: Dredgers) collides with

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: 10 River Collision vessel / dredging be declared but criteria Tier 1 may be declared but 2 1 1 1 5.0 3 3 1 1 4.0 4.07

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: Dredgers) Dredgers)

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: vessel / dredging to property; No effect of

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: (Including Dredgers) operational (oil) spill with little

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: Dredgers) collides with a effect on environmental

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: Workboat vessel / dredging

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: Dredgers) note. Tier 1 may be Tier 1 may be declared but

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:80: 12 River Collision Dredgers) control failure. Reduced 2 2 1 1 2.0 4 3 1 2 1.0 2.24

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:81: vessel / dredging property; No effect of property; No effect of note.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:81: Collision - Recreational dredging operations.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:82: dredging operations. Fire services with ensuing loss

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:82: channel dredging operations. Fire services with ensuing loss

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:82: Dredgers) property; No effect of note.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:82: 18 River Contact Dredgers) Reduced visibility. Result declared but criteria not 2 1 1 1 4.0 1 2 1 1 2.0 1.67

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:82: Buoy dredging operations. Fire services with ensuing loss

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:83: channel dredging operations. Fire services with ensuing loss

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:83: dredging operations. Fire

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:83: dredging operations. Fire Very short-term disruption prolonged restrictions, major

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:84: dredging operations. Fire suspension of commercial

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:84: 23 River Contact Workboat Dredgers) 1 2 1 1 5.0 2 2 1 1 4.0 3.16

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:84: Dredgers) berth

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:84: dredging operations. Fire short-term disruption to services with ensuing loss of

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:84: dredging operations. Fire term loss of revenue including

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:85: dredging operations. Fire short-term disruption to services with ensuing loss of

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:85: dredging operations. Fire prolonged restrictions, major

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:85: dredging operations. Fire prolonged restrictions, major

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:86: alongside Dredgers) note. Tier 1 may be

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:86: dredging operations. Fire services with ensuing loss of

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:86: Dredgers) berth services with ensuing loss

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:86: dredging operations. Fire services with ensuing loss revenue including minor

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:86: Vessel berth dredging operations. Fire services with ensuing loss of

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:87: dredging operations.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:87: dredging operations.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:87: dredging operations. Fire

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:88: dredging operations. Fire prolonged restrictions, and/or

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:88: (Including Dredgers) of avoiding action with declared but criteria not criteria not necessarily met;

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:88: Dredgers) runs aground 3rd party vessel / necessarily met; Very Very short-term disruption to

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:88: dredging operations. Fire short-term disruption to services with ensuing loss of

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:88: dredging operations. Fire prolonged restrictions, and/or

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:89: dredging operations. Fire short-term disruption to services with ensuing loss of

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:90: Incident - Dredgers) is effect of note. Tier 1 may Minor damage to property; No

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:90: Dredgers) from its short-term disruption to necessarily met; Very short-

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:91: Dredgers) effect of note. Tier 1 may

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:91: (Including vessel / dredging be declared but criteria not

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:91: Dredgers) operations. Excessive necessarily met; Very short-

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:91: swamped by a vessel / dredging be declared but criteria not

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:109: another Tanker party vessel / dredging national support. Chemical spillage or small

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:109: General Cargo General Cargo Vessel party vessel / dredging

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:110: party vessel / dredging injuries or single fatality; Moderate damage

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:110: operations / dredging to property; No effect of note. Tier 1 may be

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:110: (Including Dredgers) be declared but criteria not

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:110: Dredgers) necessarily met; Very short-

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:110: Project Cargo move party vessel / dredging criteria not necessarily met; gas release (COMAH); Adverse international

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:110: party vessel / dredging injuries or single fatality; Moderate damage

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:111: party vessel / dredging may be declared but criteria

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:111: party vessel / dredging Very minor damage to

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:111: (Including Dredgers) necessarily met; Adverse regional publicity.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:111: Dredgers) Temporary suspension of commercial

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:111: Vessel ICW party vessel / dredging criteria not necessarily met; Adverse international publicity. Long-term

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: Collision - party vessel / dredging injuries or single fatality; Moderate damage

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: (Including Dredgers) collides Result of avoiding action note. Tier 1 may be

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: 10 River Collision Dredgers) ICW with another with 3rd party vessel / declared but criteria not 2 1 1 1 5.0 3 3 1 1 4.0 4.07

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: Workboat Workboat (Including dredging operations. Traffic necessarily met; Very short-

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: (Including Dredgers) control failure. Reduced term disruption to services

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: Dredgers) visibility. Fire and explosion. with ensuing loss of

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: Workboat party vessel / dredging

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: Dredgers) collides effect of note. Tier 1 may criteria reached. Small operational (oil) spill

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:112: Dredgers) ICW failure. Reduced visibility.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:113: Workboat Workboat (Including dredging operations. Traffic

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:113: (Including Dredgers) collides control failure. Reduced

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:113: Dredgers) ICW with a Recreational visibility. Sailing vessel

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:113: Collision - party vessel / dredging injury; Minor damage to injuries or single fatality; Moderate damage

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:113: party vessel / dredging injury; Very minor damage

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:114: dredging operations. Fire

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:114: dredging operations. Fire

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:114: (Including (Including Dredgers) Minor damage to property; No effect of note.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:114: 18 River Contact Dredgers) contacts a Tier 1 may be declared but criteria not 2 1 1 1 4.0 1 2 1 1 2.0 1.67

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:114: dredging operations. Fire to services with ensuing loss

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:115: dredging operations. Fire

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:115: Buoy dredging operations. Fire term disruption to services

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:115: dredging operations. Fire Very short-term disruption restrictions, major disruption to commercial

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:116: dredging operations. Fire

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:116: 23 River Contact (Including Dredgers) Result of avoiding action may be declared but criteria 1 2 1 1 5.0 2 2 1 1 4.0 3.16

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:116: Dredgers) disruption to services with ensuing loss of

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:116: dredging operations. Fire short-term disruption to

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:116: dredging operations. Fire including minor disruption to commercial

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:117: dredging operations. Fire Very short-term disruption services with ensuing loss of revenue.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:117: dredging operations. Fire Very short-term disruption

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:117: dredging operations. Fire Very short-term disruption

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:118: berth - (Including Dredgers) may be declared but criteria

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:118: dredging operations. Fire with ensuing loss of revenue.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:118: Dredgers) services with ensuing loss of

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:118: dredging operations. Fire

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:118: Vessel dredging operations. Fire term disruption to services with ensuing loss of revenue.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:119: dredging operations. inspection.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:119: dredging operations. inspection.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:119: dredging operations. Fire operations, prolonged restrictions, and/or

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:120: dredging operations. Fire

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:120: 35 River Grounding (Including Dredgers) Result of avoiding action note. Tier 1 may be declared but criteria not 1 1 1 1 5.0 2 3 1 1 4.0 2.07

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:120: Dredgers) necessarily met; Very short-

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:120: dredging operations. Fire services with ensuing loss of revenue.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:120: dredging operations. Fire

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:121: dredging operations. Fire services with ensuing loss of revenue.

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:122: Incident - (Including Dredgers) keeping. Extreme weather. effect of note. Tier 1 may

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:122: Dredgers) mooring vessel moving in the port term disruption to services

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:123: Swamping - (Including Dredgers) / PEC holder error. Result of fatality; Moderate damage to property; No

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:123: (Including swamped by a party vessel / dredging criteria not necessarily met; Very short-term

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:123: Dredgers) passing vessel operations. Excessive speed. disruption to services with ensuing loss of

R-2020-0684-ESM-Appendix 9_Navigation Risk Assessment.pdf:123: party vessel / dredging criteria not necessarily met; Very short-term

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:3:5.4 Dredging Methodology and Schedule 53

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:3:5.4.1 Dredging Method 53

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:3:5.4.2 Dredging Schedule 54

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:3:5.5 Backhoe Dredging and Disposal Cycle 57

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:4:5.6 TSHD Dredging and Disposal Cycle 59

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:4:5.7.2 River Dredging 61

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:4:Table 5-1: Soil Types to be dredged 51

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:4:Table 5-2: Particle size distribution for dredged soil types 52

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:4:Table 5-3: Dredging Schedule Overview 55

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:6:Figure 5.1: Dredging Layout 53

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:6:Figure 5.2: South Bank Wharf Dredge Site and Tees Bay C Offshore Disposal Site 54

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:Figure 5.3: Sediment release schedule for dredger 56

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:Figure 5.5: Maximum enhanced suspended sediment concentrations arising from dredging

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:Figure 5.6: Maximum enhanced suspended sediment concentrations arising from dredging

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:Figure 5.7: Maximum enhanced suspended sediment concentrations arising from dredging

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:Figure 5.8: Maximum enhanced suspended sediment concentrations arising from dredging

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 65

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:from dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 66

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 67

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:from disposal activities during Stages 1 - 4 inclusive of the capital dredging programme 69

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:7:dredging activities during Stages 1 - 4 inclusive of the capital dredging programme 70

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:9: movement of suspended sediment from the proposed dredging and disposal activities by coupling with

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:9: 4-month dredging and disposal schedule.

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:59: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:59: dredging.

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:59: of sediment. In the main channel the deposition will require periodic dredging to maintain the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:60: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:61:investigate the suspended sediment transport effects of the proposed dredging of the channel and the berth

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:61:Available soil data indicates that it is expected that the dredging material consists of different soil types. A

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:61:summary of the expected dredging soil types based on the ground investigation data (Definitive Feasibility

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:61:between soft and hard material because it is expected to influence the choice of dredging equipment to be

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:61:Table 5-1: Soil Types to be dredged

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:62:Table 5-2: Particle size distribution for dredged soil types

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:62:The dredging layout for the South Bank dredging scope is shown in Figure 5.1. The river channel in front

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:62:of the South Bank Wharf as well as part of the Tees Dock Turning Area will be dredged to a level of -11mCD.

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:62:The berth pocket in front of the new quay has a design bed level of -13.6mCD, but the dredge volumes

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:62:considered in the dispersion model include an extra two metres of dredge material down to a bed level of -

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:62:dredging schedule. Due to the uncertainty of the time when the dredging will take place, the worst scenario

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63: Figure 5.1: Dredging Layout

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63:5.4 Dredging Methodology and Schedule

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63:The dredging method, dredging schedule and details of the sediment release settings for the sediment

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63:5.4.1 Dredging Method

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63:The sediment will be dredged using two types of dredgers. The soft soil material below a depth of -5mCD

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63:will be dredged by using a Trailing Suction Hopper Dredger (TSHD), and a Backhoe Dredger (BHD) will be

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63:used to dredge material above this level. The hard soil material will also be dredged by the BHD because

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:63:All dredged material will be taken to the “Tees Bay C” offshore disposal site which is approximately 18km

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64: Figure 5.2: South Bank Wharf Dredge Site and Tees Bay C Offshore Disposal Site

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:5.4.2 Dredging Schedule

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:The dredging schedule and quantity for the BHD and TSHD are described in Table 5-3. The dredging will

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:BHD working in parallel on dredging the soft soil material below the level of -5mCD, and then the BHD will

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:A total of 1.8 million m3 of bed material will be dredged over a period of 17weeks. The simulation covers the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:entire dredging period and the movement of dredgers and transport barges were tracked for the processes

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:of dredging, sailing, disposal and downtime for bad weather, refuelling, and equipment maintenance.

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:Figure 5.3 and Figure 5.4 show the sediment release schedules for the dredgers at the South Bank Wharf

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:site and Tees Dock Turning Area, and at the offshore disposal site respectively. The dredging schedule will

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:start with the BHD dredging the soft material above -5mCD at South Bank Wharf for 3.7 weeks, followed by

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:the TSHD and BHD working in parallel dredging soft material below -5mCD which will take 3.7 weeks. Then

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:the BHD will start dredging the hard material at the site for 8.6 weeks. After this time the BHD and TSHD

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:will then be working in parallel again to dredge the material from the Tees Dock Turning Area which will take

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:0.7 weeks. This means that the whole dredging campaign will take 17 weeks to complete.

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:64:The disposal schedule will follow the same pattern as the dredging schedule in that the barge filled by the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:65:Table 5-3: Dredging Schedule Overview

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:65:Dredge time (minutes) 75 123 123 286 75 123

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:65:Total dredging cycle time

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:65:Dredging volume (m3) 568,577 361,423 360,000 330,000 103,933 66,067

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:65:Dredging time (weeks) 3.7 3.7 3.7 8.6 0.7 0.7

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:66: Figure 5.3: Sediment release schedule for dredger

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:The following assumptions have been made for the simulation of sediment plumes arising from dredging

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:At any one time at least one dredger, or for some of the dredging period two dredgers, are scheduled to be

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:in operation and will operate at full capacity. The dredgers will release material along a single line along the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:channel, the berth pocket and part of the Tees Dock Turning Area. At the offshore disposal site, the dredger

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:approach. The dredger will actually move around the dredging area and disposal site along multiple lines

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:5.5 Backhoe Dredging and Disposal Cycle

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:This section describes the backhoe dredge and disposal cycle for the different soil types and depth layers.

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:The backhoe dredger will dredge 360,000 m3 of soft surface layer material above a level of -5mCD at the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:South Bank Wharf site. The dredger will operate continuously filling a barge, with two barges being in

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:operation sailing back and forth to the offshore disposal site. The dredger disperses sediment into the water

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:67:The backhoe will dredge for 123 minutes to load one barge, the barge will then sail for 60 minutes to the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:Once the backhoe dredger has removed the soft middle layer, the backhoe will dredge 361,423 m3 of soft

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:middle layer material below a level of -5mCD at the South Bank Wharf site. The dredger will operate

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:site. The dredger disperses sediment into the water column at a sediment release rate of 5.6 kg/s. The

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:The backhoe will dredge for 123 minutes to load one barge, the barge will then sail for 60 minutes to the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:Once the backhoe dredger and TSHD have removed the soft middle layer, the backhoe will dredge 330,000

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:m3 of hard bottom layer material at the South Bank Wharf site. The dredger will operate continuously filling

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:a barge, with two barges being in operation sailing back and forth to the offshore disposal site. The dredger

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:The backhoe will dredge for 286 minutes to load one barge, the barge will then sail for 60 minutes to the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:Once the backhoe dredger has at the South Bank Wharf site, the backhoe will dredge 66,067 m3 of soft

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:middle layer material below a level of -5mCD at the Tees Dock Turning Area. The dredger will operate

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:site. The dredger disperses sediment into the water column at a sediment release rate of 5.6 kg/s. The

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:The backhoe will dredge for 123 minutes to load one barge, the barge will then sail for 60 minutes to the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:68:dredge cycle takes 248 minutes.

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:5.6 TSHD Dredging and Disposal Cycle

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:This section describes the TSHD dredge and disposal cycle for the different dredge locations.

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:The TSHD will dredge 568,577m3 of soft middle layer material below a level of -5mCD at the South Bank

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:Wharf site. The dredger will operate for 75 minutes to load to full capacity, during which time it disperses

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:The TSHD will dredge for 75 minutes to load, then sail for 50 minutes to the disposal site, discharge for 10

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:site. The total dredge and transport cycle take 190 minutes.

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:The TSHD will dredge 103,933m3 of soft middle layer material below a level of -5mCD at the Tees Dock

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:Turning Area. The dredger will operate for 75 minutes to load to full capacity, during which time it disperses

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:The TSHD will dredge for 75 minutes to load, then sail for 50 minutes to the disposal site, discharge for 10

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:69:site. The total dredge and transport cycle take 190 minutes.

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70:The model simulations account for the movement of dredgers and transport barges (including dredging,

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70:the river dredging operations (except for allowed periods of downtime) from along the centre line of the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70:dredged areas, running along the axis of the river channel, and also on a periodic basis from a single point

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70:in the centre of the offshore disposal site. The overall river dredging, and offshore disposal operations may

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: 1. BHD working to dredge the upper soft material (above -5m CD) in the berthing pocket and river

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: 2. BHD and TSHD working in parallel to dredge the middle soft material (below -5m CD) in the berthing

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: 3. BHD working to dredge the bottom hard material in the berthing pocket and river channel

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: 4. BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70:Results from the sediment dispersion modelling are discussed in turn for the river dredging and offshore

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: (intervals) throughout the entire 4-month period covered by the dredging and disposal simulations

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: spatial extents of enhancement in SSC or deposition on the bed from any stage of the river dredging

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: or offshore disposal operations during the relevant stage of the dredging programme. It is important

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:70: affected by a plume or deposition at some point during the 4-months of dredging or disposal

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71:5.7.2 River Dredging

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71:end of the dredging transect to the north-eastern end.

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71:(up to a few hundred mg/l) are confined to the release points along the dredging transect at the proposed

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71:development site. Further upstream and downstream of the areas directly dredged, the SSC enhancement

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71:drops markedly (typically below 50mg/l a short distance from the point of dredging, and at the peripheries

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71: Figure 5.5: Maximum enhanced suspended sediment concentrations arising from dredging activities

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:71: during Stage 1 of the capital dredging programme

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:time, moving from the south-western end of each of two parallel dredging transects to the north-eastern

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:The maximum ‘zone of influence’ from Stage 2 of the dredging activities is shown in Figure 5.6. This shows

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:that during Stage 2 of the dredging, broadly similar patterns to those observed in Stage 1 are anticipated,

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:parallel dredging activities. Despite these subtle differences, maximum concentrations of SSC (up to a few

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:hundred mg/l) remain confined to the release points along the dredging transects at the proposed

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:development site. Further upstream and downstream of the areas directly dredged, the SSC enhancement

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72:drops markedly (typically below 50mg/l a short distance from the point of dredging, and at the peripheries

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72: Figure 5.6: Maximum enhanced suspended sediment concentrations arising from dredging activities

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:72: during Stage 2 of the capital dredging programme

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73:end of the dredging transect to the north-eastern end.

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73:The maximum ‘zone of influence’ from Stage 3 of the dredging activities is shown in Figure 5.7. This shows

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73:that during Stage 3 of the dredging, the maximum plume extent and maximum SSC values within the plume

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73:are much lower than experienced during both Stage 1 and 2 of the dredging (note the slight plume shown

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73:in the mid channel is a remnant of the Stage 2 dredging, which has not fully dissipated before Stage 3

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73: Figure 5.7: Maximum enhanced suspended sediment concentrations arising from dredging activities

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:73: during Stage 3 of the capital dredging programme

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74:end of each of two parallel dredging transects to the north-eastern end.

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74:The maximum ‘zone of influence’ from Stage 4 of the dredging activities is shown in Figure 5.8. This shows

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74:that during Stage 4 of the dredging, the plume is created at the turning circle and along parts of the north

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74:dredging within the turning circle (up to a few hundred mg/l). Further upstream and downstream of the areas

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74:directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a short distance from the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74:point of dredging, and at the peripheries below 20mg/l) before merging with low background concentrations

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74: Figure 5.8: Maximum enhanced suspended sediment concentrations arising from dredging activities

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:74: during Stage 4 of the capital dredging programme

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:75:The combined maximum ‘zone of influence’ from Stages 1 - 4 inclusive of the dredging activities has been

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:75:and that during the 4 months of dredging, all plume effects are confined to within the river reaches that

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:75:Furthermore, all plumes associated with dredging of the berthing pocket and river channel in the vicinity of

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:75:plumes associated with dredging of the turning circle are confined to the left bank (north of centre line)

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:75: Figure 5.9: Maximum enhanced suspended sediment concentrations (near-bed layer) arising from dredging activities

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:75: during Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:76: Figure 5.10: Maximum enhanced suspended sediment concentrations (near-surface layer) arising from dredging activities

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:76: during Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:77:the plumes created by river dredging. It can be seen that much of the sediment falls to the bed within the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:77:dredged areas (from where it will be re-dredged to achieve the necessary bed depths), whilst the deposition

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:77: Figure 5.11: Maximum river bed thickness change due to sediment deposition arising from dredging activities during

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:77: Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:77:navigation, timeseries plots of changes throughout the dredging programme have been extracted from the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:78:licensed for the disposal of dredged sediment and is routinely monitored as part of a national programme.

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:78:dredging programme has been plotted in Figure 5.12 for the near-bed layer of the water column. It should

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:79: during Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80: Figure 5.13: Maximum river bed thickness change due to sediment deposition arising from dredging activities during

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80: Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80:The river dredging and offshore disposal activities will both cause plumes of sediment to form close to the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80:During dredging, there will be release of sediment particles from the deliberate physical disturbance to the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80:river bed and, more significantly, from overflow when dredged material is loaded into the dredger’s hopper

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80:(for TSHD) or the transport barge (for BHD). Such releases will be ongoing through each dredging cycle

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80:until the dredging activity ceases due to downtime (e.g. adverse weather, vessel maintenance) or at

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80:scheduled breaks between stages of dredging activity. During offshore disposal, a single hopper load will

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:80:Once a plume is generated, the highest SSC values will be recorded at the point of river dredging or offshore

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:During some stages of the dredging and disposal activities, most notably when both TSHD and BHD are

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:The plume effects arising from the river dredging are characterised by a short-lived localised increase in

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:SSC by a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial extent

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:and reduction in concentration over following hours. Since the dredging is a near-continuous operation, the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:different stages. During Stages 1-3 the dredging-related plume effects will be largely confined to the channel

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:During Stage 4 the dredging-related plume effects will be largely confined to the channel areas north of the

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:than within the dredged areas, sediment deposition on the river bed will be of very minor magnitudes, in

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:at jetties, it will subsequently be dredged as part of ongoing maintenance dredging regimes, whilst material

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:deposited back into the newly dredged areas will be re-dredged during the capital works in order to achieve

R-2020-0684-ESM-Appendix 5_Hydro-dynamic and sedimentary plume modelling report.pdf:81:Overall, the changes in SSC and sediment deposition arising from the river dredging and offshore disposal

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:6: • fuel consumption from marine vessels, dredgers and road traffic; and,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:8:Capital dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:8:Capital dredging will be carried out within part of the Tees Dock turning circle, within parts of the existing

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:8:navigation channel and within areas not currently subject to maintenance dredging to create a berth pocket.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:8:This would include dredging of marine sediments and excavation of soils / landside material within the river

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:8:The total dredged volume for marine sediments is predicted to be approximately 1,800,000m3. Dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:8:will be undertaken using a combination of a TSHD and a backhoe dredger. Different backhoe dredgers will

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:8:the transport of sediment dredged using the backhoe dredger to the offshore disposal site.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:9:Information for the calculation of GHG emissions from dredging are provided in Table 22.5.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:9:Table 22.5 Specifications of dredgers and barges to be used during the construction phase

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:9: Number of dredgers 1 1 1

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:9: Installed power dredger (kW) 8,313 1,600 1,600

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:9: dredger and barge)

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:9: Power load factor estimate – dredger 50% 75% 80%

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:9:In addition to the workboats associated with demolition listed in Table 22.4, and dredgers and barges listed

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_22. Climate change.pdf:12: Construction dredger 6

R-2020-0684-ESM-PC1084-RHD-SB-DN-DR-C-1388_P01 Construction Sequence.pdf:1: DREDGE TO Newcastle upon Tyne, NE1 4EE

R-2020-0684-ESM-PC1084-RHD-SB-DN-DR-C-1388_P01 Construction Sequence.pdf:1: DREDGE LEVEL.

R-2020-0684-ESM-PC1084-RHD-SB-DN-DR-C-1388_P01 Construction Sequence.pdf:1: CLAY DREDGE LEVEL CLAY

R-2020-0684-ESM-Officer Report 0684.pdf:1: QUAY STRUCTURES, CAPITAL DREDGING

R-2020-0684-ESM-Officer Report 0684.pdf:1:capital dredging and development of new quay and associated works on land

R-2020-0684-ESM-Officer Report 0684.pdf:1:electrical substation), capital dredging to create a berth pocket and

R-2020-0684-ESM-Officer Report 0684.pdf:1:PC1084-RHD-SB-EN-DR-EVC-1113_P01 Dredging Plan

R-2020-0684-ESM-Officer Report 0684.pdf:4:works, dredging, or a deposit or removal of a substance or object below the

R-2020-0684-ESM-Officer Report 0684.pdf:15:capital dredging, offshore disposal of dredged material and construction and

R-2020-0684-ESM-Officer Report 0684.pdf:16:wide) and the associated dredging requirements.

R-2020-0684-ESM-Officer Report 0684.pdf:17:alternative dredging plant, approach channel and berthing pocket dredge,

R-2020-0684-ESM-Officer Report 0684.pdf:17:Alternatives have also been considered with regard to the use of the dredged

R-2020-0684-ESM-Officer Report 0684.pdf:17:transport and dredging activities.

R-2020-0684-ESM-Officer Report 0684.pdf:18: Capital dredging and offshore disposal of dredged sediments

R-2020-0684-ESM-Officer Report 0684.pdf:18: Maintenance dredging and offshore disposal of dredged sediments

R-2020-0684-ESM-Officer Report 0684.pdf:20:redistribution of sediment during capital dredging, effects on water quality

R-2020-0684-ESM-Officer Report 0684.pdf:20:physical parameters during capital dredging, remobilisation of contamination

R-2020-0684-ESM-Officer Report 0684.pdf:20:during capital dredging, release of sediment during riverbank excavation to

R-2020-0684-ESM-Officer Report 0684.pdf:20:during the process of capital dredging. In carrying out the assessment 4

R-2020-0684-ESM-Officer Report 0684.pdf:20:stages of dredging have been established to allow for the timing of the

R-2020-0684-ESM-Officer Report 0684.pdf:20:Stage 2 of the dredging schedule (as noted above, a period of approximately

R-2020-0684-ESM-Officer Report 0684.pdf:20:four weeks within the approximately four month dredging programme). The

R-2020-0684-ESM-Officer Report 0684.pdf:20:With regard to water quality during capital dredging it is considered the

R-2020-0684-ESM-Officer Report 0684.pdf:20:capital dredging indicates that long term effects on dissolved oxygen

R-2020-0684-ESM-Officer Report 0684.pdf:20:Additionally, it is considered that a significant component of the dredged

R-2020-0684-ESM-Officer Report 0684.pdf:20:temporary for the duration of the dredge and then be reversible. The ES

R-2020-0684-ESM-Officer Report 0684.pdf:21:Consideration has been given to the impact of capital dredging and the

R-2020-0684-ESM-Officer Report 0684.pdf:21:consideration has been given to the volume of material to be dredged, the

R-2020-0684-ESM-Officer Report 0684.pdf:21:sediment during maintenance dredging and surface water discharge to the

R-2020-0684-ESM-Officer Report 0684.pdf:22:more material to be dredged from this local reach annually. An estimate of

R-2020-0684-ESM-Officer Report 0684.pdf:22:maintenance dredging within the Tees, however the 10% increase predicted

R-2020-0684-ESM-Officer Report 0684.pdf:22:maintenance dredging and offshore disposal regimes. The ES concludes on

R-2020-0684-ESM-Officer Report 0684.pdf:22:experienced during maintenance dredging operations is predicted to be very

R-2020-0684-ESM-Officer Report 0684.pdf:28: construction and capital dredging.

R-2020-0684-ESM-Officer Report 0684.pdf:28: capital dredging and smothering as a result of dredging.

R-2020-0684-ESM-Officer Report 0684.pdf:28: dredge regime.

R-2020-0684-ESM-Officer Report 0684.pdf:28:The majority of the proposed dredge footprint is located within the subtidal

R-2020-0684-ESM-Officer Report 0684.pdf:28:existing land), dredging and excavation in front of the quay wall to create the

R-2020-0684-ESM-Officer Report 0684.pdf:29:due to demolition of existing structures and dredging, effects of increased

R-2020-0684-ESM-Officer Report 0684.pdf:29:suspended sediment concentrations during dredging on marine species and

R-2020-0684-ESM-Officer Report 0684.pdf:30:dredging on marine species and habitats.

R-2020-0684-ESM-Officer Report 0684.pdf:30:The proposed capital dredging will result in direct impacts to existing areas of

R-2020-0684-ESM-Officer Report 0684.pdf:30:intertidal and subtidal habitat that lie within the proposed dredge footprint. It is

R-2020-0684-ESM-Officer Report 0684.pdf:30:also acknowledged that the proposed dredge footprint is in close proximity to

R-2020-0684-ESM-Officer Report 0684.pdf:30:The proposed capital dredging that will form the berth pocket, and the rock

R-2020-0684-ESM-Officer Report 0684.pdf:30:by the dredging activities (including within the turning circle) is estimated to be

R-2020-0684-ESM-Officer Report 0684.pdf:30:32.5ha. In assessing the impact of the dredging, consideration has been given

R-2020-0684-ESM-Officer Report 0684.pdf:30:community as a result of habitat loss caused by dredging would be of

R-2020-0684-ESM-Officer Report 0684.pdf:30:The proposed development will require the dredging of approx. 1,800,000m3

R-2020-0684-ESM-Officer Report 0684.pdf:30:dredging activity is acknowledged as resulting in a localised and short-term

R-2020-0684-ESM-Officer Report 0684.pdf:31:regimes affecting marine communities and change in maintenance dredging

R-2020-0684-ESM-Officer Report 0684.pdf:31:maintenance dredging when required. It is therefore considered that the new

R-2020-0684-ESM-Officer Report 0684.pdf:31:additional maintenance dredging is not considered likely, with the frequency

R-2020-0684-ESM-Officer Report 0684.pdf:31:due to the anticipated shipping activity and maintenance dredging this will

R-2020-0684-ESM-Officer Report 0684.pdf:31:result of the maintenance dredging requirement arising from the proposed

R-2020-0684-ESM-Officer Report 0684.pdf:31:With regard to the impacts from the proposed capital dredging, it is

R-2020-0684-ESM-Officer Report 0684.pdf:32:No mitigation required and no residual impact with regard to dredging regime

R-2020-0684-ESM-Officer Report 0684.pdf:32: result of dredging in front of the new quay. While this habitat does not

R-2020-0684-ESM-Officer Report 0684.pdf:33:with the proposed capital and maintenance dredging, movement of vessels

R-2020-0684-ESM-Officer Report 0684.pdf:33:dredged sediments have been considered within Chapter 26 of the ES.

R-2020-0684-ESM-Officer Report 0684.pdf:34:seal that could be present in the dredge footprint that could be at potential

R-2020-0684-ESM-Officer Report 0684.pdf:34:site is approximately 3km from the closest point of the proposed dredge

R-2020-0684-ESM-Officer Report 0684.pdf:34:in suspended sediments during dredging or other activities will have a

R-2020-0684-ESM-Officer Report 0684.pdf:35:dredging, vessel interactions (collision risk) during dredging and operational

R-2020-0684-ESM-Officer Report 0684.pdf:35:use of the quay, disturbance at seal haul-out sites during dredging, changes

R-2020-0684-ESM-Officer Report 0684.pdf:35:in water quality during dredging and changes to prey resource during

R-2020-0684-ESM-Officer Report 0684.pdf:35:dredging.

R-2020-0684-ESM-Officer Report 0684.pdf:35:dredging strategy currently undertaken by PD Ports. It is therefore considered

R-2020-0684-ESM-Officer Report 0684.pdf:35:maintenance dredging during the operational phase of the proposed

R-2020-0684-ESM-Officer Report 0684.pdf:35:The proposed impacts regarding maintenance dredging are considered to be

R-2020-0684-ESM-Officer Report 0684.pdf:35:comparable of less than those addressed with regards to capital dredging in

R-2020-0684-ESM-Officer Report 0684.pdf:42:supporting habitat due to dredging / excavation and demolition works, impacts

R-2020-0684-ESM-Officer Report 0684.pdf:42:With regard to loss of supporting habitat during dredging and demolition works

R-2020-0684-ESM-Officer Report 0684.pdf:42:waterbirds, including SPA / Ramsar site and SSSI features. The dredging

R-2020-0684-ESM-Officer Report 0684.pdf:42:impacts on water quality are likely to result from dredging and excavation

R-2020-0684-ESM-Officer Report 0684.pdf:43:effect on intertidal food resources as a result of the effects of capital dredging

R-2020-0684-ESM-Officer Report 0684.pdf:43:personnel, plant / machinery, dredgers / other vessels and construction

R-2020-0684-ESM-Officer Report 0684.pdf:43:lighting. The ES concludes that visual disturbances from dredging operations

R-2020-0684-ESM-Officer Report 0684.pdf:44:the estuary rather than dredging across the width of the river. This is to

R-2020-0684-ESM-Officer Report 0684.pdf:44:reduce both the extent and impact of the dredged plume, as any plume

R-2020-0684-ESM-Officer Report 0684.pdf:44:dredge operations in the Tees, such as in the NGCT scheme (Royal

R-2020-0684-ESM-Officer Report 0684.pdf:45:location of dredging activities that will minimise the frequency by which a

R-2020-0684-ESM-Officer Report 0684.pdf:45:dredger operates adjacent to the mudflats. Mitigation can also be provided

R-2020-0684-ESM-Officer Report 0684.pdf:46: designated sites, including noise shrouds on piling rigs, and dredging

R-2020-0684-ESM-Officer Report 0684.pdf:46: result of dredging in front of the new quay. While this habitat does not

R-2020-0684-ESM-Officer Report 0684.pdf:48:marine water quality due to dredging, entrainment of fish and fish eggs by

R-2020-0684-ESM-Officer Report 0684.pdf:48:dredging gear, underwater noise during dredging, underwater noise from

R-2020-0684-ESM-Officer Report 0684.pdf:48:Consideration has been given to marine water quality during dredging

R-2020-0684-ESM-Officer Report 0684.pdf:48:Chapters 6 and 7 of the ES. Based on the impacts resulting from dredging at

R-2020-0684-ESM-Officer Report 0684.pdf:48:throughout the dredging campaign.

R-2020-0684-ESM-Officer Report 0684.pdf:48:are likely to be sensitive to entrainment from dredging activities. The area is

R-2020-0684-ESM-Officer Report 0684.pdf:48:however acknowledged as encountering regular maintenance dredging within

R-2020-0684-ESM-Officer Report 0684.pdf:48:the proposed dredge footprint therefore suggesting that the riverbed is likely

R-2020-0684-ESM-Officer Report 0684.pdf:48:uptake of eggs during the capital dredge. The ES concludes that the impact

R-2020-0684-ESM-Officer Report 0684.pdf:48:Underwater noise has been considered as result of dredging activities. These

R-2020-0684-ESM-Officer Report 0684.pdf:48:dredging vessels is required to carry out the development and while smaller

R-2020-0684-ESM-Officer Report 0684.pdf:48:most suitable form of mitigation relates to the location of dredging and the axis

R-2020-0684-ESM-Officer Report 0684.pdf:49:in a permanent loss of such habitat. Additionally, capital dredging and

R-2020-0684-ESM-Officer Report 0684.pdf:49:alterations of subtidal habitat as a result of dredging activity there is

R-2020-0684-ESM-Officer Report 0684.pdf:49:vessel traffic and maintenance dredging. The effect on fishing vessels is

R-2020-0684-ESM-Officer Report 0684.pdf:49:change in maintenance dredging regime affecting supporting habitats and

R-2020-0684-ESM-Officer Report 0684.pdf:50:the existing maintenance dredging strategy, and no changes to the present-

R-2020-0684-ESM-Officer Report 0684.pdf:50:day maintenance dredging strategy will be necessary. There would therefore

R-2020-0684-ESM-Officer Report 0684.pdf:50:beyond those already associated with the existing maintenance dredging

R-2020-0684-ESM-Officer Report 0684.pdf:50:Mitigation is proposed relating to impacts of dredging on water quality. This

R-2020-0684-ESM-Officer Report 0684.pdf:50:includes limits to dredging activity within the river to one side at a time and the

R-2020-0684-ESM-Officer Report 0684.pdf:50:With regard to underwater noise from dredging, the proposed mitigation is

R-2020-0684-ESM-Officer Report 0684.pdf:50:considered to include limits to dredging activity within the river to one side at a

R-2020-0684-ESM-Officer Report 0684.pdf:51:No mitigation measures are required with regard to dredging regime affecting

R-2020-0684-ESM-Officer Report 0684.pdf:52:dredgers/barges and those existing vessels within the estuary.

R-2020-0684-ESM-Officer Report 0684.pdf:52: Post dredge surveys and promulgation.

R-2020-0684-ESM-Officer Report 0684.pdf:54: The proposed new quay alignment and capital dredging to deepen the

R-2020-0684-ESM-Officer Report 0684.pdf:54: deepening of the bed due to the capital dredging.

R-2020-0684-ESM-Officer Report 0684.pdf:54: the deposition will require periodic dredging to maintain the design

R-2020-0684-ESM-Officer Report 0684.pdf:54: There is no measurable change caused by the capital dredging at the

R-2020-0684-ESM-Officer Report 0684.pdf:59: capital dredging (to deepen the northern half of the Tees Dock turning

R-2020-0684-ESM-Officer Report 0684.pdf:59:during dredging or during excavations, these could be of potentially high

R-2020-0684-ESM-Officer Report 0684.pdf:60: The proposed new quay alignment and capital dredging to deepen the

R-2020-0684-ESM-Officer Report 0684.pdf:60: -in the main channel the deposition will require periodic dredging to

R-2020-0684-ESM-Officer Report 0684.pdf:60: expected to already have occurred during the capital dredge

R-2020-0684-ESM-Officer Report 0684.pdf:60: There is no measurable change caused by the capital dredging at the

R-2020-0684-ESM-Officer Report 0684.pdf:63: Dredging; and

R-2020-0684-ESM-Officer Report 0684.pdf:83:during demolition, quay construction, excavation and dredging phases.

R-2020-0684-ESM-Officer Report 0684.pdf:86:22.10 of the ES which considers emissions from construction dredger,

R-2020-0684-ESM-Officer Report 0684.pdf:91:Chapter 26 – Offshore Disposal of Dredged Material

R-2020-0684-ESM-Officer Report 0684.pdf:91:large volume of dredged sediment. It is predicted that the volume of material

R-2020-0684-ESM-Officer Report 0684.pdf:92:The potential impacts from the disposal of the dredged material within Tees

R-2020-0684-ESM-Officer Report 0684.pdf:92:with regard to dredged material disposal. As part of this assessment

R-2020-0684-ESM-Officer Report 0684.pdf:92:specifically for the disposal of dredged material), however the dominant

R-2020-0684-ESM-Officer Report 0684.pdf:93:Maintenance dredged material from the Tees (which contains both invasive

R-2020-0684-ESM-Officer Report 0684.pdf:93:dredged material within Tees Bay C as a result of the proposed scheme

R-2020-0684-ESM-Officer Report 0684.pdf:93:has already occurred from previous and ongoing maintenance dredge

R-2020-0684-ESM-Officer Report 0684.pdf:93:barges would transport the dredged material from the dredging works site to

R-2020-0684-ESM-Officer Report 0684.pdf:93:dredged, it is likely that regular movements of vessels between the dredging

R-2020-0684-ESM-Officer Report 0684.pdf:94:Matters relating to Offshore Disposal of Dredged Material are not matters that

R-2020-0684-ESM-Officer Report 0684.pdf:94:the view that matters relating to Offshore Disposal of Dredged Material will be

R-2020-0684-ESM-Officer Report 0684.pdf:96: designated sites, including noise shrouds on piling rigs, and dredging

R-2020-0684-ESM-Officer Report 0684.pdf:96: result of dredging in front of the new quay. While this habitat does not

R-2020-0684-ESM-Officer Report 0684.pdf:96:dredging and development of new quay and associated works (phase 1) is

R-2020-0684-ESM-Officer Report 0684.pdf:97: PC1084-RHD-SB-EN-DR-EVC-1113_P01 Dredging Plan received by the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:3: Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:3: Advertised Dredge Depths (m)

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:3: Advertised Dredge Depths

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:4:to the presence of the dredger and barges within and adjacent to the navigation channel (as well as any

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:4:area in the vicinity of the proposed quay but the capital dredging will, at certain stages in the construction

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:4: • Post dredge surveys and promulgation.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:4:It is envisaged that PDT would manage any potential conflicts in the same way as routine dredging and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:4:Harbour Master. Management of dredging operations within a busy port environment is a standard activity

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:6: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:6: dredging.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:6: deposition will require periodic dredging to maintain the design depths.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_14. Commercial and recreational navigation.pdf:6: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_2. Need for the proposed scheme.pdf:1:(90m wide) and the associated dredging requirements. Consultation with PD Ports’ Harbour Master during

R-2020-0684-ESM-CONSULTATION MMO 0684.pdf:1:Such activities include the construction, alteration or improvement of any works, dredging, or a

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: Mitigation measures with regard to dredging may be required to manage

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: reductions. Such measures would entail limiting dredging to certain

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: proposed dredge on water and sediment quality are

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: Dredging has the potential to cause negative impacts on the water

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: with the proposed dredge are detailed in Section 9

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: The proposed dredging plant has been selected

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: encountered during the dredge, as well as the plant

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: The applicant should consider the (dredging) methodology to be used,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: which has been used for previous capital dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: the disposal of dredged material and the timing of works.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:2: to be used, disposal of dredged material and timing

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3: As detailed in Section 3, the dredged material is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3: dredged material previously and it can accept the total proposed amount

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3: dispose of capital dredged sediment. Impacts

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3: of dredged material.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3: Due to the quantity of material proposed to be dredged, it is advised that

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3: of dredged material are presented.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3:are predicted to occur (e.g. sediment plumes generated during capital dredging and effects on tidal currents

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3: • Cefas Guideline Action Levels for the disposal of dredged material (Cefas, 2000); and,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:3:The Action Levels are used as part of a ‘weight of evidence’ approach to assessing the suitability of dredged

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:5:losses from dredging equipment and concentrations of contaminants within the sediments to be dredged

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:6:impacts associated with the proposed offshore disposal of dredged material are considered in Section 26,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:6:proposed new quay at South Bank. There is however a degree of overlap between the dredge footprint for

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:7: D2 Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:11:that found in 2006. The MMO has recently confirmed that the sediment to be dredged from the NGCT

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:12:13 surface samples from within and adjacent to the proposed dredge footprint for the NGCT scheme.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:13: Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:15:across the proposed dredge footprint. Samples will be recovered at the surface and at 1m intervals at each

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:15:of the 25 positions to the proposed dredge depth, or until geological mudstone is encountered beforehand

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:15:undertake maintenance dredging of the river to maintain the advertised dredge depths, with mid-licence

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:15:dredge disposal licence (to ensure that the maintenance dredged material remains suitable for offshore

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:7.5.1 Dispersion and redistribution of sediment during capital dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:Capital dredging would result in the creation of sediment plumes. To consider the potential extent and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:model MIKE3-HD and run for the four-month period over which dredging is likely to occur. The simulations

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:also accounted for the movement of dredgers and transport barges (including dredging, sailing, disposal

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:and downtime) and four ‘stages’ of dredging (which would occur in sequence) were modelled to allow for

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16: • Stage 1: BHD working to dredge the upper soft material in the berthing pocket and river channel.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16: • Stage 2: BHD and TSHD working in parallel to dredge the middle soft material in the berthing

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16: • Stage 3: BHD working to dredge the bottom hard material in the berthing pocket and river

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16: • Stage 4: BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:the figure that the largest concentrations are local to the dredger and typically reach around 100 to 200mg/l.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:dredgers. At some points in the cycle, areas of these initially separate plumes combine as they move

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:The maximum concentrations and the spatial extents of the plume arising from Stage 3 of the dredging are

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:and the production rate of dredging is notably lower. Figure 7.5 shows an example plume during Stage 3

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:dredging. Plots for the different tidal conditions are presented in Section 6.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:16:Again, peak concentrations close to the dredger are shown in the plume modelling output. On the ebb

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:17:Figure 7. 3 Plume of suspended sediment concentrations arising from dredging activities during Stage 2

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:17:(release from south-western ends of the two parallel dredging transects)

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:18:Figure 7. 4 Plume arising from dredging activities during Stage 1 of the capital dredge (release from the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:18:south-western corner of the dredging transect during the ebb phase)

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:19:Figure 7. 5 Plume of suspended sediment concentrations arising from dredging activities during Stage

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:19:3 (release from the south-western corner of the dredging transect during the ebb phase)

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:20:Figure 7.6 Plume of enhanced suspended sediment concentrations arising from dredging activities

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:Stage 2 of the proposed dredging schedule (when the BHD and TSHD would be working in parallel to dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:the proposed capital dredging works either do not cause elevations at the water quality monitoring points or

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:will be exceedances over baseline conditions throughout Stage 2 of the dredging schedule (as noted above,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:a period of approximately four weeks within the approximately four month dredging programme). The effect

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:7.5.2 Effects on water quality physical parameters during capital dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:The relatively limited nature of the plume extents predicted for the proposed capital dredging indicates that

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:Additionally, a significant component of the dredged material is likely to be geological sediment, which is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:21:only for the duration of the dredge (approximately four months) and reversible. As a result, the magnitude

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:22:7.5.3 Remobilisation of contamination during capital dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:22:undertaken to inform whether maintenance dredging within a dock in Dover Harbour could give rise to EQS

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:22:estimates of sediment losses from dredging equipment and concentrations of contaminants within the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:22:sediments to be dredged to provide an indication of the amount of contamination that could be released into

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:23:Table 7.9 Summary of calculations undertaken for potential water column effects within the Tees estuary at low water (based on removal of 15,000m3 of dredged

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:23: Calculated loss of sediment derived using indicative values for the mass of sediment resuspended per m 3 of dredged material in CIRIA guidance (John et al., 1999) in kg/m3. Worst case S-Factor for

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:23: MAC EQS Maximum Allowable Concentration. Used given the fact that dredging is not continuous as opposed to annual average EQS which averages samples collected over a year.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:25: • A relatively large proportion of the total volume of dredged material is anticipated to comprise

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:25: the dredge area.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:25: • The daily dredge volume is likely to be less than that accounted for due to stoppages associated

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:25: • The calculation is based on loss from a TSHD whereas a considerable component of the dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:25: will be undertaken with a backhoe dredger which has a lower production rate and therefore

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:25:weeks during Stage 2 of the proposed dredging programme.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:7.6.1 Dispersion and redistribution of sediment during maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:increase in deposition rates and hence a requirement for more material to be dredged from this local reach

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:annually (see Section 6 for more information). A 10% increase in annual maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:However, the majority of material removed during the weekly maintenance dredging campaigns undertaken

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:net annual maintenance dredging requirement from the estuary as a whole. Therefore the potential increase

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:in maintenance dredging requirement is not expected to be significant and would be managed within existing

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:maintenance dredging and offshore disposal regimes.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_7. Marine sediment and water quality.pdf:27:dredging operations is predicted to be very low. Given the sensitivity of the Tees estuary is considered to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:5: dredging, excavation and demolition works.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:5: • Sand and shingle • Water quality reductions from demolition and dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:5: with offshore disposal of dredged material have been

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:6: Northumberland a result of underwater noise during dredging and • No pathways for effect

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:7: (100km south porpoise as a result of underwater noise during dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:7: • Mudflats and sandflats not due to underwater noise from dredging and offshore

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:9:dredging.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:9:influence of the proposed scheme will be determined by the sediment plume during dredging activities.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:11: Proposed quayside works and dredging at its North Sea supply base Approximately

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:12: The NGCT scheme comprises capital dredging up to 4.8 million m3 Should the NGCT scheme coincide with the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:12: disposal of dredged material offshore, construction of a new 1.5km interest features of the SPA / Ramsar site could

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:12: NGCT elements (buildings, rail terminal, road access, lighting, drainage Dredge footprint noise, visual disturbance and water quality

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:12: • dredging up to 750,000m3 of material from the approach scheme, in-combination effects to the interest

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:12: • dredging up to 372,000m3 of material from the approach

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: In addition to the proposed dredge (and associated disposal of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: dredged material), PDT is proposing to construct an underwater

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: being undermined following the proposed dredge.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: nature of this activity, maintenance dredging and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: for the area. Although maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: Ongoing maintenance dredging for the scheme, there is potential for

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: dredging at Hartlepool This activity has been ongoing for many years. 0km maintenance dredging elsewhere within the Tees

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: and in the Tees estuary to coincide with the capital dredging, which could

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: The effects of maintenance dredging at Hartlepool

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:13: maintenance dredge disposal licence) would not

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: refurbishment 1 and Dolphin D, and a dredge of the river bed (with associated

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: dredge footprint combination effects.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: disposal of dredged material) to extend the existing berth pocket

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: The dredge footprint for the proposed scheme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: overlaps with the proposed Tees channel dredge.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: The Tees Channel Dredge project involves a proposed deepening of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: Tees Channel Dredge Scoping Report (Royal HaskoningDHV, 2016) was submitted to the 0km

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:14: the Tees Channel dredge would not be undertaken

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:15: • Dredging of the existing berth and disposal of dredged

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:16: dredge as a maintenance dredge activity. Given

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:16: PDT is proposing to undertake a dredge of the approach channel to maintenance dredging within the Tees, this activity

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:16: its existing maintenance dredge licence in order to dispose of the capital dredging activity required for the proposed

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:16: dredged material (i.e. the MMO sees the proposed dredge as a scheme (albeit within a different part of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:16: maintenance dredge activity). PDT’s intention is to undertake the estuary).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:16: dredge during 2020/2021.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:16: under the ‘maintenance dredge’ umbrella

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:20: • Loss of intertidal feeding resource due to dredging and excavation to create the berth pocket.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:20: • Indirect impacts on foraging behaviour as a result of impacts to prey resource from capital dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:20: • Maintenance dredging.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:22:Effects on water quality due to dredging and disposal

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:22:The capital dredging of the river will cause plumes of sediment to form. The plume effects arising from the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:22:river dredging are characterised by a short-lived localised increase in suspended sediment concentrations

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:22:by the order of a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:22:extent and reduction in concentration over the following hours. Since the dredging is a near-continuous

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:22:at varying extents depending on the dredging activities undertaken at any one time. Deposition thicknesses

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:be sustained in light of sea level rise. In the main channel, the deposition will require periodic dredging to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:maintain design depths. An increase in annual maintenance dredging requirement considered in Section

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:6 is predicted to yield a very low overall contribution to the net annual maintenance dredging requirements

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:from the estuary as a whole and the potential increase in maintenance dredging requirement could easily

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:be managed within existing maintenance dredging regimes (i.e. no change to the existing maintenance

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:dredge strategy is required).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:new quay’s set-back alignment and dredging of part of the existing estuary bed is 150,901m3. This

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:SPA, behind the existing wharf, to subtidal habitat, due to the capital dredging and excavation required to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:create the berth pocket. The dredging footprint in the channel and the Tees Dock turning circle does not

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:23:mudflat / other intertidal types in the estuary (i.e. the dredge will be within subtidal areas only). Dredging in

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:24:as foraging grounds, indicated by WeBS core counts for the two sectors in which capital dredging will be

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:24:subject to regular (almost daily) maintenance dredging by PDT therefore the impact of the capital dredge is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:24:the proposed capital dredge. Furthermore, the subtidal area within the proposed dredge footprint represents

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:dredging.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:While 32.5ha of subtidal will be affected by the proposed capital dredging, the area already experiences

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:regular (almost daily) maintenance dredging by PDT so there are not expected to be any long-term changes

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:With the application of mitigation in the form of ensuring that the capital dredging transects run along the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:dredging activities associated with the highest modelled increase in SSC (i.e. Stage 2 of the dredging, which

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:The sediment dispersion modelling of Stage 2 dredging indicates that, at any given time, significant SSC

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:excesses from the capital dredging are confined to the dredging transects and are predicted to decrease

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:significantly with increased distance from the dredging vessel, both laterally and along the line of the vessel,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:month dredging programme.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:England, 2018a). The area affected by the sediment plume generated from proposed dredging, though

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:Maintenance dredging in the channel, undertaken by PDT on an almost-daily basis, infers that terns using

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:dredged.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:25:foraging opportunities during the capital dredging are not considered to represent a significant change to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:26:approximately five-month duration of the capital dredging campaign. As such, there are expected to be no

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:26:concludes that the periodic nature of underwater noise, plus the likely habituation to background dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:26:noise due to regular maintenance dredging, means that impacts on fish are considered to be of minor

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:26:opportunities during the capital dredging are not considered to represent a significant change to foraging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:28:construction personnel, plant / machinery, dredgers / other vessels and construction lighting. Sections

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:scheme footprint (not including dredging activities, which are considered separately below), therefore for

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:During dredging of the main channel and the turning circle, dredging vessels will operate in close proximity

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:to the North Tees Mudflat and Vopak Foreshore. Most notably, sections of the channel dredge footprint run

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:adjacent to the North Tees Mudflat, therefore the presence of dredging vessels may result in disturbance to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:dredging vessels which operate on an almost daily basis within the channel, including within 30m of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:habituation over the proposed capital dredging period and any effects would lessen through the course of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:Disturbances at Vopak Foreshore would be limited to the approximately one week of dredging required to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:approximately 4.5 months of dredging required further upstream, but only during times when the dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:transect runs close to the mudflat (for example, when dredging the southern half of the river it is unlikely to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:29:threshold, and the mudflat itself extends over a kilometre upstream of the proposed dredge footprint. As

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:30:associated with the capital dredging has been assumed to represent a temporary loss of foraging habitat in

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:30:various impacts commonly associated with dredging and industrial work in the Tees. As such, the number

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:31:adjacent to the dredging footprint. The proposed scheme will result in the conversion of approximately 2.5ha

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:31:of intertidal to subtidal habitat, demolition of artificial structures and dredging of an area of approximately

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:31:As stated in Section 29.5.4, the effects of capital dredging on subtidal habitat are considered to be

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:31:characteristic of a disturbed environment regularly affected by ongoing maintenance dredging). Impacts on

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:projects. However, dredging activity may, at worst, lead to some localised redistribution on North Tees

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:the ongoing PDT maintenance dredging, have the potential to cause similar disturbance to the Vopak

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:Foreshore and / or North Tees Mudflat due to dredging activity in the channel. However, the dredge footprint

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:for the proposed scheme overlaps in part with the NGCT dredge footprint at the Tees Dock turning circle.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:The dredge at Tees Dock turning circle would therefore only be undertaken by one of these schemes, which

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:reduces the potential for in-combination disturbance to birds at Vopak foreshore. Maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:within the estuary occurs on an almost daily basis; such dredging was ongoing at the time the SPA and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:Ramsar site was extended and has been occurring for many years. It is therefore concluded that dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:33:dredging for all schemes screened into the assessment be required at the same time (which is highly

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:approach channel scheme and the ongoing maintenance dredging by PDT.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:An interaction between the sediment plumes would only occur in the unlikely event that the capital dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:low, with any effect confined to the footprint of the proposed dredge. The predicted increase in suspended

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:impact dissipating within 10 minutes following completion of the dredge (Royal HaskoningDHV, 2018).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:Harbour Facilities scheme, the ongoing maintenance dredging and the Dogger Bank Teesside A & Sofia

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:dredging transects oriented along the axis of the river rather than across to ensure that, at any one time,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:For the Anglo American Harbours facilities scheme specialist dredging equipment (i.e. an enclosed grab

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:loading into a sealed barge) will be used for dredging of unconsolidated material to minimise resuspension

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:34:extensive (and on-going) maintenance dredging within the channel on an almost-daily basis, common terns

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:35:on land are excluded. The ongoing maintenance dredging is also not considered here as this forms part of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:35:increase in maintenance dredging requirement is not expected to be significant and could easily be

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:35:managed within existing maintenance dredging and offshore disposal regimes.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:35:been subject to maintenance dredging and offshore disposal as part of ongoing maintenance dredging.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_29. Habitats Regulations Assessment.pdf:36:impacts commonly associated with dredging and industrial work in the Tees, regardless. As such, the

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1109_Appendix 15_Flood Risk Assessment.pdf:8: • capital dredging (to locally deepen the Tees Dock turning circle and approach channel and to create

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1109_Appendix 15_Flood Risk Assessment.pdf:8: • offshore disposal of dredged sediments; and,

R-2020-0684-ESM-Appendix 16_WFD scoping tables.pdf:4:Table A2 Output of WFD scoping for activity C2 Capital dredging

R-2020-0684-ESM-Appendix 16_WFD scoping tables.pdf:4:Could significantly impact the hydromorphology of any Yes, capital dredging could potentially alter hydromorphological parameters in the water

R-2020-0684-ESM-Appendix 16_WFD scoping tables.pdf:4: The area to be impacted by dredging equates to 350,000m2 (0.32km2) which when

R-2020-0684-ESM-Appendix 16_WFD scoping tables.pdf:4:Is within 500m of any higher sensitivity habitat and consideration of the type of habitat to be disturbed/removed by the capital dredge is

R-2020-0684-ESM-Appendix 16_WFD scoping tables.pdf:4:outside the estuary but could delay or prevent fish There is the possibility of sediment plumes during the dredging works. Possibility of

R-2020-0684-ESM-Appendix 16_WFD scoping tables.pdf:4:entering it or could affect fish migrating through the underwater noise during dredging impacting on fish is scoped out due to evidence provided

R-2020-0684-ESM-Appendix 16_WFD scoping tables.pdf:4:Could impact on normal fish behaviour like movement, only) less than 20m from the dredger. It is considered unlikely that fish would remain within the

R-2020-0684-ESM-Appendix 16_WFD scoping tables.pdf:4: Regular maintenance dredging undertaken within the proposed dredge footprint on a year-

R-2020-0684-ESM-Appendix 16_WFD scoping tables.pdf:4: the risk of direct uptake of eggs during the capital dredge (See Section 13).

R-2020-0684-ESM-Appendix 16_WFD scoping tables.pdf:5: There is the possibility of sediment plumes during the dredging works

R-2020-0684-ESM-Appendix 16_WFD scoping tables.pdf:16:Table B2 Completed Scoping Tables for Activity: C2 Capital dredging

R-2020-0684-ESM-Appendix 16_WFD scoping tables.pdf:16: Qualitative status Quantitative Dependent Surface Water Body No Capital dredging would not impact on

R-2020-0684-ESM-Appendix 16_WFD scoping tables.pdf:16: Chemical Chemical Dependent Surface Water Body No Capital dredging would not impact on

R-2020-0684-ESM-Appendix 16_WFD scoping tables.pdf:17: Supporting elements Prevent and limit objectives No Capital dredging would not impact on

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:1:ABPmer (2005). Tees Maintenance Dredging Baseline Document. Report R.1149.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:1:Central Dredging Association (CEDA) (2011). Underwater sound in relation to dredging. Position Paper - 7

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:1:November 2011. Available at URL: http://www.dredging.org/documents/ceda/downloads/2011-

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:4:Halcrow (1991). Tees Estuary Dredging Review. Report for Tees and Hartlepool Port Authority.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:5:HR Wallingford (1992). Tees and Hartlepool Port Authority. Review of Dredging. EX 2580.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:6:sediment plumes arising from dredging. Construction Industry Research and Information Association

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:6:Jones, D. and Marten, K. (2016). Dredging sound levels, numerical modelling and EIA. Maritime Solutions

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:10:Pirotta, E., Laesser, B. E., Hardaker, A., Riddoch, N., Marcoux, M., and Lusseau, D. (2013). Dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:10:(2011). Measurement of underwater noise arising from marine aggregate dredging operations. Marine

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:10:Royal Haskoning (2007a). Tees Maintenance Dredging Baseline Document. May 2007.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:11:Royal HaskoningDHV (2017a). Tees Maintenance Dredging Annual Review 2016.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:11:Royal HaskoningDHV (2018). Tees Maintenance Dredging Annual Review 2017.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:11:Royal HaskoningDHV (2019a). Tees Maintenance Dredging Annual Review 2018.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:11:Royal HaskoningDHV (2020a). Tees Maintenance Dredging Annual Review 2019.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:12:(2011). The measurement of underwater noise radiated by dredging vessels during aggregate extraction

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:13:F. (2014). A review of impacts of marine dredging activities on marine mammals. – ICES Journal of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:13:WODA (2013). Technical Guidance on: Underwater Sound in Relation to Dredging. World Organisation of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_30. References.pdf:13:Dredging Associations.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:1:estuarine-and-coastal-waters. The proposed quay, dredge area, disposal site and WFD water body outlines

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:1:maintenance dredging campaigns would be on a significantly smaller scale than the capital dredging and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:1:that the estuary is already subject to ongoing maintenance dredging, scoping is undertaken on capital

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:1:dredging only.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:2: Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:3: • C2 Capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:3: dredger.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:5: 22.Dredging disposal strategy

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:5: 23.Reduce impact of dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:5: 25.Retime dredging or disposal None identified

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:5: 27. Dredge disposal site selection

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:7:C2 Capital dredging hydromorphology and WFD mitigation are no higher sensitivity water quality due to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:7: 500m. during dredging.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:8:C2 Capital Dredging No – dredging will not impact on the groundwater body

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:9:28.5 Detailed assessment – C2 Capital dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:10: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:10: to the new quay alignment) and the local deepening of the bed due to the capital dredging.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:10: the deposition will require periodic dredging to maintain the design depths.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:10:in mean tidal prism as a result of the new quay’s set-back alignment and dredging of part of the existing

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11:Overall therefore, the effects of the capital dredging and presence of new quay wall on the flow conditions

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11:Capital dredging within the river would result in sediment plumes. To consider the potential extent and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11:model MIKE3-HD and run for the four-month period over which dredging is predicted to occur. The

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11:simulations also accounted for the movement of dredgers and transport barges (including dredging, sailing,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: BHD working to dredge the In all tidal conditions modelled, the lateral extent of the plume across the river channel

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: created by the different dredgers. At some points in the cycle, areas of these initially

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: parallel to dredge the middle

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: 3 BHD working to dredge the The maximum concentrations and the spatial extents of the plume arising from Stage

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: bottom hard material in the 3 of the dredging are much lower than those experienced during Stage 1 largely

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: berthing pocket and river because the material being released is coarser and the production rate of dredging is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: channel. notably lower. Plume very small and located close to the dredging activity.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: 4 Again, peak concentrations close to the dredger are shown in the plume modelling

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:11: parallel to dredge the material

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:12: Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:concentations within an hour. All other stages of proposed dredging either do not cause elevations or only

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:Tyne for the New Tyne Crossing to predict the consequences of dredging on dissolved oxygen

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:such as dredging times, seasonal fluctuations and river flows, the modelling predicted only small differences

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:between background and dredging impacted dissolved oxygen concentrations. No difference was noted

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:between the summer and winter concentrations. Furthermore, dredging in the Tyne is considered to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:limited plume extents for the majority of the capital dredge for the proposed scheme.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:dissolved oxygen concentrations are only likely to be an issue when dredging within an area with an existing

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:13:monitoring of dredging suggests effects are unlikely. Given the water body has a classification status of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14: • A relatively large proportion of the total volume of dredged material is anticipated to comprise

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14: the dredge area.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14: • The daily dredge volume is likely to be less than that accounted for due to stoppages associated

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14: • The calculation is based on loss from a TSHD whereas a considerable component of the dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14: will be undertaken with a backhoe dredger which has a lower production rate and therefore

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14:with hours) for Stage 2 which reduce as dredging progresses (see Figure 28.4).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14:suspended solids when in close proximity to the dredger. As a result, a non-temporary deterioration in water

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14:The majority of the proposed dredge footprint is located within the subtidal parts of the Tees estuary and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14:therefore the majority of the dredge would impact on the lower sensitivity habitat ‘subtidal soft sediment’ of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:14:locate the quay in the riverbank (i.e. on land), dredging and excavation in front of the quay wall to create the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:15:Information regarding the habitat located within the dredge footprint is to be confirmed with a site specific

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:15:collected to inform the ES for NGCT are likely to be similar in nature to those found within the dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:15:most frequently in the estuarine locations (and within the area to be dredged for this project) was EUNIS

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:15:The biotopes recorded in the 2019 survey are likely to reflect those located in the dredge area given their

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:15:Whilst capital dredging would remove material from the seabed it would not alter the habitat type available

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:15:composition and numbers following dredging, it is predicted that the sediment communities would recover

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:16:It is also recognised that the proposed dredge footprint is within close proximity to the North Tees mudflat,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:16:Sediment suspended within the dredging plumes will fall to the riverbed, either soon after disturbance or

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:16:spillage occurring during the dredging operation (for coarser-grained sediment fractions), or at a point in

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:16:by deposition. It can be seen that much of the sediment falls to the bed within the dredged areas (from

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:16:where it will be re-dredged to achieve the necessary bed depths), whilst the deposition that occurs in other

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:17:Figure 28.5 Maximum river bed thickness change due to sediment deposition arising from dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:17:activities during Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18:affected areas (Appleby and Scarratt, 1989). However, given that maintenance dredging is regularly

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18:affected area would likely be relatively tolerant / acclimatised to the disturbances associated with dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18:areas of the estuary at any one time. Additionally, it is proposed that dredging would be limited to one side

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18:past the dredging activity (and for resident species to relocate to largely undisturbed areas), thus reducing

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: There would be a temporary presence of dredging vessels but

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: Dredging disposal strategy Whilst there would be a temporary increase in material that

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: Reduce impact of dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: would not alter significantly the maintenance dredging and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: Retime dredging or disposal MMO and their advisors Cefas.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: Dredging would be managed in line with mitigation measures

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: Dredge and disposal site selection agreed for various environmental topics which include

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: dredging along the axis of the river to ensure the plumes are

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:18: a result of the capital dredge is provided in Section 28.5.3.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:19:The combined effects of the dredge area and presence of new quay wall set back in the embankment are

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:19: Dredging disposal strategy

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:20: Reduce impact of dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:20: Retime dredging or disposal Riverbank excavation would not impact on these mitigation

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:20: Dredge and disposal site selection

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:21:The combined effects of the dredge area and presence of new quay wall set back in the embankment are

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:21: Dredging disposal strategy

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:21: Reduce impact of dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:21: Retime dredging or disposal

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:21: Dredge and disposal site selection

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:21: on marine ecology are related to dredging of the berth and are

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:22: deepened areas associated with the capital dredge which could have effects on ecological

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:22: • The combined effect of the loss of intertidal habitat (dredged berth), loss of subtidal (rock blanket)

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:22: and temporary disturbance of subtidal habitat (capital dredge) on ecological potential of the WFD

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:23: • The combined effect of dredging and effects associated with piling and riverbank excavation on

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:23:same as the effects predicted for the capital dredging alone.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:23:predicted to be temporary and a significant portion of the dredge area is already subject to maintenance

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:23:dredging so is already disturbed and supports communities habituated to this disturbance. The remaining

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:23: • Ongoing maintenance dredging in the Tees estuary.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:23:All schemes require dredging and construction of new riverbank structures and therefore the following

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:23: • Disturbance of marine habitats associated with dredging.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:maximum concentrations of suspended solids are localised to the dredging activity and quickly disperse

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:with distance from the dredger. Additionally, peaks are relatively short lived (approximately an hour at a time

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:for the proposed scheme for example) and associated with specific dredging phases of each scheme. The

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:water column would be significantly increased by the projects all dredging at the same time. Where

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:proposed project both include mitigation measures to dredge in long strips to reduce the effects of sediment

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:dredgers would be working on different sides of the estuary and therefore clear channels would be

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:Any project that requires dredging would disturb the marine communities within the sediments to be

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:dredged. However, PDT undertake maintenance dredging in the majority of the estuary. Consequently, all

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:disturbance. Given dredging for all projects would not alter the substrate type or exposure, subtidal

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:index are not predicted given the existing maintenance dredging which would be accounted for in the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:proximity to the dredging over the slack water period for all projects. In practice, much of this deposited

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:24:material will be re-dredged as part of the capital works for each scheme. Beyond the immediate deposition

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:26: or water levels due to the limited area of proposed dredging for this project. Cumulative effects are therefore not predicted over and above those identified for the scheme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:26: Currents Modelling for the proposed scheme showed that the new quay alignment and capital dredge would have very small localised effects predominantly near to the quay wall but

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:26: require periodic dredging equivalent to a 10% increase in annual maintenance dredging requirement.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:26: material to the Tees estuary from offshore; with the potential to increase the maintenance dredging requirements by about 10%. No increase in sandy infill was predicted. A

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:26: changes in current speeds but that this would not alter the present frequency of, or methodology used for, maintenance dredging. Additionally, no effect was identified on

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:27: The ongoing maintenance dredging programme in the Tees estuary represents a potential supply of fine material to Seal Sands. However, the latest annual update to the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:27: Maintenance Dredging Baseline Document (Royal HaskoningDHV, 2019) concludes that the current maintenance dredging regime does not adversely affect the overall

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:27: estuary morphology and the ongoing morphological processes at work. Additionally, maintenance dredging forms part of the baseline for WFD classification given that it is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:28:dredging’ identified risks to all WFD quality elements but detailed assessment deemed that the impacts

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:28:the locality of the dredger and only for hours at a time during Stage 2 of the proposed dredge programme.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:28:All other stages of dredging required for the proposed scheme did not indicate significant concentrations of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:28:protect resident and migratory fish further reduce this risk as dredging will be limited to occurring in long

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:29:These were NGCT, Anglo American Harbour Facilities and ongoing maintenance dredging in the estuary.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:29:would be sediment plumes associated with dredging simultaneously. However, on further consideration,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:29:peak concentrations for all projects are restricted to close proximity to the dredger and disperse with

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_28. Water Framework Directive compliance assessment.pdf:29:projects would occur at the same time. Mitigation measures such as dredging in long strips as required for

R-2020-0684-ESM-Appendix 3_Scoping consultation.pdf:2: • Dredging of the River Tees,

R-2020-0684-ESM-Appendix 3_Scoping consultation.pdf:3:limited by dredging within the immediate area of the proposed dock facilities. Archaeological review of

R-2020-0684-ESM-Appendix 3_Scoping consultation.pdf:3:whether these are situated within an area of proposed new dredging (either for construction or on-

R-2020-0684-ESM-Appendix 3_Scoping consultation.pdf:6:jetties, capital dredging (to deepen the Tees Dock turning circle and approach

R-2020-0684-ESM-Appendix 3_Scoping consultation.pdf:6:channel and to create a berth pocket), offshore disposal of dredged sediments and

R-2020-0684-ESM-Appendix 3_Scoping consultation.pdf:7: wharf and two jetties, capital dredging (to deepen the Tees Dock turning circle and

R-2020-0684-ESM-Appendix 3_Scoping consultation.pdf:7: approach channel and to create a berth pocket), offshore disposal of dredged

R-2020-0684-ESM-Appendix 3_Scoping consultation.pdf:8: • capital dredging (to deepen the Tees Dock turning circle and approach

R-2020-0684-ESM-Appendix 3_Scoping consultation.pdf:8: • offshore disposal of dredged sediments

R-2020-0684-ESM-Appendix 3_Scoping consultation.pdf:12:existing Infrastructure (the dilapidated timber wharf and jetties), capital dredging within the

R-2020-0684-ESM-Appendix 3_Scoping consultation.pdf:12:estuary and offshore disposal of dredged material, construction of a combi-piled quay wall

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:1:26 OFFSHORE DISPOSAL OF DREDGED MATERIAL

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:1:The proposed scheme is predicted to generate up to approximately 1,800,000m3 of dredged sediment from

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:1:been undertaken on a worst-case basis whereby all dredged sediment from the Tees estuary would be

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:1:26.2 Modelling the dispersion and deposition of capital dredged material

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:1:To inform the assessment of environmental impacts from predicted offshore disposal of dredged material,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:2:The proposed disposal of dredged material within the Tees Bay C offshore disposal site has the potential

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:2:within and beyond the boundary of the Tees Bay C site due to disposal of dredged material. Seabed

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:2:that there would be negligible impact on fish or fisheries due to the proposed deposition of dredged material

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:2:In 2010, CEFAS undertook the ‘SLAB5’ dredged material disposal site sampling survey at a number of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:5:The proposed disposal of dredged material at the Tees Bay C offshore disposal site would be significantly

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:5:arise from offshore disposal of dredged material

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:5:disposal site (an area which is designated specifically for the disposal of dredged material), however the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:invasive species Theora lubrica were found in samples from the Tees estuary, within the NGCT dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:are within the areas which are subject to regular maintenance dredging by PDT, however were located

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:outside of the proposed dredge footprint for the proposed South Bank scheme. The proposed dredging and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:dredge footprint prior to the dredge taking place (if they are not there already).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:species are not present at levels of concern within the Tees estuary. Maintenance dredged material from

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:Bay for many years and will continue into the future. As a result, the disposal of dredged material within

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:(beyond that which has already occurred from previous and ongoing maintenance dredge disposal

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:To undertake the disposal operation, the TSHD and/or disposal barges would transport dredged material

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:from the proposed dredge footprint to the Tees Bay C offshore disposal site. Consequently, there is potential

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:The disposal operations are linked to the dredging task and would require regular movements of dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:plant between the dredge site and the disposal site, via the navigation channel and the coastal waters of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:dredged material offshore would be low (i.e. a TSHD and/or a barge), and no impact is predicted.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:The proposed disposal of dredged material has the potential to result in shallowing of the water depth above

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:7:significantly impacts navigation. It is concluded that the proposed disposal of dredged material into the Tees

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:The underwater noise predicted to arise from the proposed dredging activities have been used as a proxy

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:for the assessment of potential impacts associated with offshore disposal of dredged sediments (see

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:disposal of dredged sediments are likely to be less than those generated during dredging activities. The

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:impact ranges are based on those modelled for the Hartlepool approach channel dredging scheme (see

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:As outlined in Section 10.5.1, there would be no risk of any PTS as a result of the proposed dredge and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:consequently this conclusion also applies to the proposed offshore disposal of dredged material.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:display a fleeing response, as a result of underwater noise during offshore disposal of dredged sediments

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:offshore disposal of dredged sediments

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8: et al., 2019) dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8: disposal of dredged 0.003km2

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8:result of underwater noise associated with offshore disposal of dredged sediments

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:8: disposal of dredged (0.0000006% of the NE England MU) (temporary effect with less than 1% of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:9:dredged sediments is negligible / very low for harbour porpoise, minke whale, grey seal and harbour seal,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:9:disposal of dredged sediments would be limited to the immediate vicinity of the vessels while they are

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:9:disposing of the dredged material. The number of harbour porpoise, minke whale, grey seal and harbour

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:9:dredged sediments on harbour porpoise, minke whale, grey seal and harbour seal, has been assessed as

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:9:Table 26.5 Assessment of impact significance for underwater noise during offshore disposal of dredged

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:9: dredged

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:9:Potential for vessel interactions (collision risk) with marine mammals during disposal of dredged

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:10: of dredged 0.002 grey seal Negligible / very low magnitude

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:10:potential increase in collision risk with vessels during offshore disposal of dredged sediments has been

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:10: of dredged very low

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:10:disturbance due to the disposal of dredged sediment into the disposal site to seals at Seal Sands, including

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:11:As outlined in Section10.5.4, any vessels passing the seal haul-out sites as they take the dredged material

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:11:dredged sediment

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:11:The offshore disposal of dredged material would temporarily increase the suspended sediment

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_26. Offshore disposal of dredged material.pdf:11:Changes to marine mammals prey resource during offshore disposal of dredged sediment

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:2: Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:6: 7 P roposedDredg

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:8: P roposedDredg

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:9: P roposedDredg

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:15: the proposed channel dredge, berth pocket and wharf demolition footprint and includes the North

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:26:12.5.1 Loss of supporting habitat due to dredging / excavation and demolition

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:26:The dredging footprint in the main channel does not overlap with the intertidal habitat available at North

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:supporting habitat within the footprint of the proposed dredging and excavation represents just 0.3% of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:As discussed further in Section 13.5.1, dredging and excavation activities resulting in an increase in SSC

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:The area that may be affected by increases in SSC during dredging has been described in Section 6.5.2.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:In summary, the largest sediment plumes are likely to arise during Stage 2 of the dredging (i.e. BHD and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:TSHD working in parallel to dredge in the berth pocket and the main channel). During this stage, the zone

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:of influence extends approximately 750m downstream and 2,500m upstream of the dredged area (see

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:Stage 2 dredging, presented in Section 6.5.2 indicates that significant SSC excesses from the capital

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:dredging are confined to the dredging transects and are predicted to decrease significantly with increased

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:27:distance from the dredging vessel, both laterally and along the line of the vessel, with plumes diminishing

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:28:the dredging campaign may overlap with part of the common tern breeding period.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:28:affected by dredging, as detailed in Section 12.3.2). The peak count in 2020 was a decrease on previous

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:28:important for foraging and therefore terns may be sensitive to the turbidity caused by dredging operations

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:28:species (e.g. Sandwich tern). Furthermore, the occurrence of frequent (almost daily) maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:28:As described above, the zone of influence of the Stage 2 dredge presented in Figure 6.39 significantly

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:28:levels are only predicted to exceed baseline levels during the dredging campaign (a period of approximately

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:28:2 dredging will only comprise approximately one month of the approximately five month dredging campaign,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29:and the other stages of the dredge campaign would result in a smaller plume than that described for Stage

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29: therefore be undertaken in long strips along the axis of the estuary rather than dredging across

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29: the width of the river. This is to reduce both the extent and impact of the dredged plume, as any

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29: channel. This approach has been proposed for other capital dredge operations in the Tees, such

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29:The deposition of fine sediment within intertidal areas due to capital dredging has the potential to affect

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29:dredging, is presented in Section 6.5.2. Fine sediment will be deposited within minutes or hours if carried

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29:in suspension from the point of release. Most falls within the dredged areas, whilst deposition elsewhere is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:29:of the effects of capital dredging and therefore a negligible impact is predicted on the waterbirds relying on

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:30:from dredging and demolition works, represented as the day / night LAeq) at most receptor locations will be

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:33:of construction personnel, plant / machinery, dredgers / other vessels and construction lighting. In particular,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:33:during dredging of the main channel, dredging vessels will operate in close proximity to the North Tees

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:33:Mudflat and Vopak Foreshore. Dredging is due to continue for a period of approximately five months. This

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:33:end of the proposed scheme footprint are within 300m of the mudflat (not including dredging activities, which

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:During dredging of the main channel and the turning circle, dredging vessels will operate in close proximity

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:to the North Tees Mudflat and Vopak Foreshore. Most notably, sections of the channel dredge footprint run

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:adjacent to the North Tees Mudflat (this is illustrated in Figure 11.2), therefore the presence of dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:maintenance dredging vessels which operate on an almost daily basis within the channel, including within

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:that there will be further habituation over the dredging period and any effects would lessen through the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:Disturbances to birds at Vopak Foreshore would be limited to the very short-term dredging within the Tees

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:limited to Stages 1 to 3 (a period of approximately 4.5 months), but only during times when the dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:transect runs close to the mudflat (for example, when dredging the southern half of the river it is unlikely to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:and the mudflat itself extends over a kilometre upstream of the dredge footprint. As such, any displacement

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:Given the above, it is anticipated that visual disturbances from dredging operations would have a minor

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:The mitigation measures outlined in Section 12.5.2 would ensure that dredging vessels only operate along

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:the axis of the river, rather than across it, thus minimising the frequency of occasions whereby the dredger

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:34:operates adjacent to the North Tees Mudflat. There is no practical way of avoiding dredging activities since

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:35:as a result of dredging activities and residual noise from land-based piling works. The assessment

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_12. Marine and coastal ornithology.pdf:35:concludes that there may be a minor adverse effect as a result of the dredging leading to fish moving away

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: 3. ALL DREDGE SLOPES ARE ASSUMED TO BE 1:3. TO BE

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: 7. PROPOSED SCHEME AVOIDS DREDGING OVER THE

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: DREDGE DEPTH WILL NEED TO INCREASE BY THE

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: MAINTAINED DREDGE LEVEL -10.4mCD

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: DESIGN DREDGE LEVEL -11.0mCD Pipelines

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: PRELIMINARY DREDGING

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: MAINTAINED DREDGE LEVEL -10.4mCD BM CF TJR

R-2020-0684-ESM-PC1084-RHD-SB-EN-RP-EV-1107_Appendix 7_Land quality desk study.pdf:45: DESIGN DREDGE LEVEL -11.0mCD DATE SCALE REF.

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:5: “Demolition of existing redundant quay structures, capital dredging and development of new

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:5: • PC1084-RHD-SB-EN-DR-EVC-1113_P01 Dredging Plan

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:6: • The Seaward Works – these comprise dredging of the approach channel and berth pocket,

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:6: the disposal of the dredged material at sea. Planning consent is not required for these works

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:10: dredging to create a berth pocket and construction and operation of a new quay (to be set back

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:10: required (90m wide) and the associated dredging requirements. Consultation with PD Ports’

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:10: There would, therefore, be a requirement for dredging of estuarine (marine) sediments and

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:10: scheme (and consequently the dredging requirements) has been designed to avoid the pipe

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:12:3.22 The Phase 1 quay wall would extend 125m either side of the berth pocket to retain the dredged

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:12: dredging will need to take place as part of each phase.

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:24: structures and capital dredging, increased suspended sediment concentrations and increased

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:24: regime and impacts associated with maintenance dredging. All operational phase impacts are

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:24: auditory injury to marine mammals from dredging has been assessed as negligible. The

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:24: dredging and construction, vessel strikes are not anticipated to be significant due to the existing

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:26: concentrations during the capital dredging works, notably if creating barrier effects that may

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:26:5.36 Alteration of subtidal habitat due to the proposed dredge is expected to be temporary and would

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:26: be similar to that already experienced through regular maintenance dredging that is already

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:26:5.37 Based on the expected underwater noise levels associated with capital dredging activities, sound

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:26: is expected that fish will already be habituated to regular dredging noises within the estuary and

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:27: dredged on an almost daily basis, the area within the footprint of the scheme is unsuitable for

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:27: of the proposed scheme (dredging and construction of the new quay) are in keeping with the

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:27: reduced by disturbance from previous dredging. Archaeological material may still survive, albeit

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:30: principally as a result of the proposed dredge. However, on further consideration of the

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:30: before any works commence. Best practice measures would be adopted during the dredging

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:30: dredging in long strips to ensure the plume is located only on one side of the channel at a time

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:32: Infrastructure along the river bank at South Bank, capital dredging to create a berth pocket and

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:32: • The Seaward Works – these comprise dredging of the approach channel and berth pocket,

R-2020-0684-ESM-61586 Quay Planning Statement 09-11-20.pdf:32: the disposal of the dredged material at sea. Planning consent is not required for these works

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:1:along the river bank at South Bank (including an electrical substation), capital dredging (to deepen the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:1:berth pocket), offshore disposal of dredged sediments and construction and operation of a new quay (to be

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:2:would all be removed to avoid issues arising during the subsequent capital dredge. It is proposed that the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:3: BERTH POCKET DREDGING AREA BERTH POCKET DREDGING AREA

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:3: CHANNEL DREDGING AREA CHANNEL DREDGING AREA

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:3: DREDGING AREA

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:3.6 Capital dredging of marine sediments and excavation of soils /

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:Drawing PC1084-RHD-SB-EN-DR-EV-1113 below shows the proposed dredge footprint. For the purposes

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:of this EIA, a dredge envelope has been assessed (Figure 1.1). As shown on the drawing, dredging is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:dredging to create a berth pocket. The Tees Dock turning circle and areas of navigation channel are

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:dredged to a depth of 15.6m bCD (maintained at a depth of 13.0m bCD). The berth pocket is proposed to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:be dredged to 15.6m bCD initially in order to allow for the installation of a 2m thick rock blanket (discussed

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:area that is currently partly land and estuarine. There would, therefore, be a requirement for dredging of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:berth pocket. The proposed scheme (and consequently the dredging requirements) has been designed to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:A summary of the proposed design levels and dredge volumes for marine sediments is detailed in Section

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:3.6.1 Volume of marine sediments to be dredged

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:The total dredge volume for marine sediments is predicted to be approximately 1,800,000m3. As detailed

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:in Table 3.2, the dredge is proposed to be undertaken in two phases to match the anticipated phased

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:construction of the quay however the assessment undertaken within this EIA assumes that the dredging is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:dredged material is anticipated to comprise geological material (i.e. mudstone) (approximately 340,000m3),

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:8:would be dredged to 11m bCD with the exception of the berth pocket which will be dredged to 15.6m bCD.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: AREA DREDGED

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: DREDGE TO -11.0mCD

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: DREDGE TO -15.6mCD

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: DREDGED TO -11mCD MUDFLATS

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: AREA DREDGED

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: AREA DREDGED

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: DREDGED TO -11mCD

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: PHASE 1 UPSTREAM AREA DREDGED

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: AREA DREDGED

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:9: DREDGING PLAN

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:Table 3.2 Proposed volumes of marine sediments to be dredged (excluding over-dredge volumes)

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10: Material classification Phase 1 dredge volume (m3) Phase 2 dredge volume (m3) Total dredge volume (m3)

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:It is anticipated that dredging will be undertaken using a combination of a Trailing Suction Hopper Dredger

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:(TSHD) and a backhoe dredger. It is envisaged that up to three barges will be required to support with the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:transport of sediment dredged using the backhoe dredger to the offshore disposal site. It is assumed that

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:a TSHD would be used to dredge soft material and it has been assumed for the purposes of assessment

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:It is expected that the backhoe dredger would be used for both the near surface soft material and the hard

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:material (mudstone). For the purposes of the assessment, it has been assumed that the dredge process

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10: • Removal of soft material above -5m bCD using a backhoe dredger (approximately four weeks).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10: • Removal of soft material below -5m bCD using a backhoe dredger and a TSHD (approximately four

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10: • Removal of soft material in the turning circle using a backhoe dredger and a TSHD (approximately

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10: • Removal of hard material using a backhoe dredger (approximately 10 weeks).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:10:destabilising the quay wall. The implication is that the berth pocket would need to dredged to a greater

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:3.8 Disposal of dredged material

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:There are two active disposal sites that potentially could accept dredged material from the Tees estuary:

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:capital dredged material but has received quantities of maintenance material in some years. Tees Bay A

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:For the purposes of assessment and the marine licence application, it has been assumed that all dredged

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:The Phase 1 quay wall would extend 90m either side of the berth pocket to retain the dredged slopes back

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:assessed the worst-case scenario of building the quay and dredging the channel in one phase. However,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:and capital dredging (see Drawing PC1084-RHD-SB-DN-DR-C-1388). The rock blanket would be installed

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:11:following completion of the dredge.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:12: DREDGE TO Newcastle upon Tyne, NE1 4EE

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:12: DREDGE LEVEL.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:12: CLAY DREDGE LEVEL CLAY

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:13: This assumes all dredging plant

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:13: Capital dredging 2 months 3 months 5 months are working at full capacity

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:13:Whilst capital dredging is taking place, there is potential for PDT to be undertaking maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:13: • Dredging plant

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:13: o Backhoe dredger

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:13: o Barges to transport material from the backhoe dredger to the offshore disposal site.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:14:result of capital and maintenance dredging, as well as INNS being introduced or spread from ship ballast

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:16:known to cross underneath the Tees estuary. As dredging is not proposed to be undertaken above the pipe

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:18:Alternative dredging plant

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:18:There is likely to be a requirement to utilise a number of different types of dredger depending on the nature

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:18:of the material being dredged. Therefore, for different parts of the dredging it will be necessary to use a

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:18:TSHD or backhoe. The environmental implications of using these dredgers have been assessed and no

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:Approach channel and berthing pocket dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:The proposed dredged depth in the navigation channel has been chosen to maximise the tidal window to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:3.15.3 Alternative uses of dredged material

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:uses for the dredged arisings, with disposal at sea being the least preferred option (in accordance with the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:reclamation projects. The alternative options that have been considered for the disposal of dredged material

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:The proposed dredge is predicted to give rise to boulder clay, sand and silts. Sand and boulder clay could

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:STDC is not aware of any construction projects within the local area that require the use of dredged material,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:continue to remain open to the re-use of dredged material within construction projects.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:(possibly doubling as little tern nesting islands) could be created using the dredged material from Hartlepool

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:19:suitable locations for the re-use of dredged sediment; three were located adjacent to the South Gare

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:20:scheme by beneficially re-using dredged material would be welcomed. It is considered that such beneficial

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:20:re-use of dredged material could also represent a possible option for the South Bank scheme.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:20:STDC will continue to investigate the option of creating bird islands using dredged material, possibly linking

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:20:Tees (or any beneficial use of dredged material in the marine environment) would require a separate marine

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_3. Description of the proposed scheme.pdf:20:licence application to deposit dredged material, or potentially a variation to the marine licence for the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:1: disposal of dredged material should be taken into account.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:3: The Tees has been subject to dredging in the recent past meaning the potential for

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:5: heritage is likely to be limited by dredging within the immediate area of the proposed

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:5: wreck sites whether these are situated within an area of proposed new dredging 16.4.1 and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:5: dredging and offshore disposal activities (Figure 6.2).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:6: Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:7: Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:13: Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:14:known to have been found during dredging within the river channel and there is a submerged forest is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:14:located near Hartlepool on the north bank. Although extensive dredging and reclamation has taken place

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:15: Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:16: Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:17:reclamation and disturbance from previous dredging within the channel. Although there is high potential for

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:18: • Dredged channel/area, Navigation feature (Section of navigable waters), Modern (AD1900 –

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:18:proposed scheme (dredging and construction of the new quay) are in keeping with the historic (and current)

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:20: • capital dredging (to deepen the northern half of the Tees Dock turning circle, a section of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:21:by the historic reclamation and disturbance from previous dredging within the channel.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:21:potential for remains to be present, if such remains are encountered during dredging or during excavations

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:21:If present, dredging within the turning circle and approach channel and dredging / excavation to create the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:21:to effects during construction it is concluded that, other than within the dredged areas, sediment deposition

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:21:it will subsequently be dredged as part of ongoing maintenance dredging regimes, whilst material deposited

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:21:back into the newly dredged areas will be re-dredged during the capital works in order to achieve the desired

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:22: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:22: o in the main channel the deposition will require periodic dredging to maintain the design

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:22: construction as impacts are expected to already have occurred during the capital dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_16. Archaeology and cultural heritage.pdf:22: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

R-2020-0684-ESM-cil_questions phase 1.pdf:1: DEMOLITION OF EXISTING REDUNDANT QUAY STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND ASSOCIATED

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:1:maintenance dredging, movement of vessels (including vessels associated with the demolition of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:1:mammals from the offshore disposal of dredged sediments are assessed in Section 26.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:4:estimate the noise levels likely to arise during the dredging works at the proposed scheme. More information

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:4:on the methodology used in the underwater noise modelling for the dredging works in Section 10.5.1.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:9:point of the proposed dredge footprint. The 2019 surveys occurred for a period of 47 days throughout the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:9:usage is relatively low in and around the proposed dredge footprint plus 1km buffer, with a grey seal density

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:9:dredging (Section 10.5 and 10.6). The density estimate of 0.014/km2 has been used to determine the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:11:at the Farne Islands (117km from proposed dredge area), Donna Nook in the Humber Estuary (173km from

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:11:proposed dredge area), the Wash (233km from proposed dredge area) and at Blakeney Point (244km from

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:11:proposed dredge area). With smaller haul-out sites located at Ravenscar (57km from proposed dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:11:area), Filey Brigg (81km from proposed dredge area) and at Seal Sands (3km from the proposed dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:12:Seals Sands is located approximately 3km from the proposed dredge footprint at its closest point. The Tees

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:12:usage is relatively low in and around the proposed dredge footprint plus a 1km buffer, with a harbour seal

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:14: 0.00008/km2 for dredge footprint plus 1km

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:14: 0.0003/km2 for dredge footprint plus 1km

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:14:disposal site. The winter area of the Southern North Sea SAC is located 127km from the proposed dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:14:The proposed dredge area is located within the Teesmouth and Cleveland Coast SSSI. Breeding harbour

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:14:Pupping tends to occur in June and July on the intertidal mud of Seal Sands (3km from the proposed dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:16:through the noise exposure event (dredging activity). This is a highly conservative approach, and likely has

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:16:the modelled noise levels for dredging works fell below 130 dB re 1µPa, they were of the order of ambient

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17:publicly available (Subacoustech, 2018) has been used to assess the impact ranges of dredging works

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17: • Backhoe dredger with an estimated sound source of 165.0 dB re 1 µPa SPLRMS @ 1m.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17:proposed dredging in the Tees Dock turning circle to the coast).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17:source levels predicted for the dredging activities, any marine mammal would have to remain in close

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17:a result of underwater noise during dredging activities (Table 10.9) has been assessed based on the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17:maximum number of animals that could be present in the maximum impact areas for dredging (Table 10.8).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17:berth pocket, would be the same or less than those modelled for dredging activities.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17:dredging activities based on Hartlepool approach channel underwater noise modelling (Subacoustech, 2018)

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17: et al., 2019) dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:17: SEL during dredging 0.003km2

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:18:PTS as a result of underwater noise associated with dredging activities

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:18: dredging 0.00000024 grey seal Negligible / very low magnitude

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:18:The magnitude of the potential impact of PTS as a result of dredging noise is negligible / very low for harbour

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:18:The potential risk of any PTS that could result from underwater noise during the dredging works or other

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:18:activities would be limited to the immediate vicinity of the dredging works while they are taking place only.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:18:dredging works.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:18: dredging very low

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:The dredging process emits continuous, broadband sound into the marine environment. SPLs can vary

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:widely, dependent on the dredger type, operational stage, or environmental conditions (e.g. sediment type,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:factors will also affect the propagation of sound from dredging activities and along with ambient sound

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:Based on reviews of published sources of underwater noise during dredging activities (e.g. Thomsen et al.,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:mammals may be exposed to during dredging activities are usually below auditory injury thresholds or PTS

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:in marine mammals as a result of dredging activity is highly unlikely.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:area during dredging activities. Marine mammals may exhibit varying behavioural reactions intensities as a

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:19:in the berth pocket, would be the same or less than those modelled for dredging activities.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:case location (closest point of the proposed dredging in the Tees Dock turning circle to the coast).

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:display a fleeing response, as a result of underwater noise during dredging activities (Table 10.12) has been

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:(Table 10.11) for proposed dredging activities.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:dredging activities based on Hartlepool approach channel underwater noise modelling (Subacoustech, 2018)

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20: et al., 2019) dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20: dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:result of underwater noise associated with proposed dredging activities

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20: during dredging (0.000000004% of the NE England MU) (temporary effect with less than 1% of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:The magnitude of the potential impact of TTS and fleeing response as a result of dredging noise, is negligible

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:The potential risk of any TTS or fleeing response that could result from underwater noise during the dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:20:works would be limited to the immediate vicinity of the dredging works while they are taking place only. The

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:21:dredging works.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:21: dredging very low

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:22:vessels during the proposed dredging has been assessed based on a very precautionary worst-case of up

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:22:risk (Table 10.14). The proposed dredge footprint is approximately 0.38km2 in size (based on the dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:22:be present in the dredge footprint that could be at potential increased vessel collision risk

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:22: dredging (5% of Negligible / very low magnitude

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:22: animals in dredge 0.000002 grey seal

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:22:potential increase in collision risk with vessels during dredging has been assessed as negligible (not

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:23:Table 10.15 Assessment of impact significance for increased collision risk from vessels during dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:23: dredging very low

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:24:the proposed dredge footprint. Due to the distance of the haul-out site from the proposed scheme, there is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:24:no potential for the dredge vessels to cause any disturbance to seals hauled out at the site, including the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:24:dredged material offshore, would maintain the same distance from the sandbanks as vessels currently

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:24:The proposed dredging and other underwater activities (namely demolition and removal of existing

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:24:relied upon solely. Therefore, any increases in suspended sediments during dredging or other activities will

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:24:Potential impacts on fish species during dredging and other underwater activities can result from the physical

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:25:Therefore, there sensitivity to any changes in prey availability as a result of the proposed dredging is

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:25:prey availability during the proposed dredging has been based on the dredge footprint of 0.38km2 and the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:25:be present in the dredge area that could be impacted by any changes to prey availability

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:25: dredge area Negligible / very low magnitude

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:25: dredge area Grey seal Low

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26: • Underwater noise during dredging;

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26: • Vessel interactions (collision risk) during dredging and operational use of the quay;

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26: • Disturbance at seal haul-out sites during dredging;

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26: • Changes in water quality during dredging; and,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26: • Changes to prey resource during dredging.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:It is important to note that there will be no changes to the overall maintenance dredging strategy currently

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:undertaken by PDT during operation, with maintenance dredging currently undertaken virtually daily within

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:dredging during the operational phase of the proposed scheme.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:10.6.1 Underwater noise during maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:Underwater noise predicted to be generated from maintenance dredging is considered to be the same or

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:less as the underwater noise predicted to occur from the capital dredging activities. Therefore, the impact

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:of maintenance dredging will be the same or less as that assessed for the construction phase (see Section

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:the maximum number of animals that could be impacted as a result of underwater noise during the dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:10.6.2 Vessel interactions (collision risk) during maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:The potential for any increased collision risk during the maintenance dredging operations is considered to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:maintenance dredging will be the same or less as that assessed for the construction phase (see Section

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:number of animals that could be at increased collision risk during the maintenance dredging. The impact

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:significance for harbour porpoise, minke whale, grey seal and harbour seal during maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:dredging activities. The residual impact would be of negligible significance.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:10.6.3 Disturbance at seal haul-out sites during maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:The potential for any disturbance at seal haul-out sites during maintenance dredging is considered to be the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:same or less as that assessed for the dredging activities during the construction phase, and therefore the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:26:impact significance for any disturbance at seal haul-out sites during maintenance dredging has been

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:10.6.4 Changes in water quality during maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:The potential impact of any changes to water quality during maintenance dredging is considered to be the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:same or less as that assessed for the dredging activities during the construction phase, and therefore the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:impact significance for any changes to water quality during maintenance dredging has been assessed as

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:10.6.5 Changes to prey resource during maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:The potential impact of any changes to prey resources during maintenance dredging is considered to be the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:same or less as that assessed for the dredging activities during the construction phase, and therefore the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:impact of maintenance dredging will be the same or less as that assessed for the construction phase. The

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_10. Marine mammals.pdf:27:impact significance for any changes to prey resources during maintenance dredging has been assessed as

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:2: Proposals for the disposal of dredged material must demonstrate that they have been

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:2: assessed against the waste hierarchy. Where there is the need to identify new dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3: The Environment Agency’s response to RCBC during scoping consultation listed three Impacts of dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3: • Impacts of dredging on the tidal prism of the estuary, and therefore the extent addressed in Section

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3:Agency (letter • In addition to the initial capital dredge, consideration of the impacts associated impacts associated

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3:dated 14th August with the continued maintenance of the dredged area in future years should be with maintenance

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3:2020) assessed too, in terms of the continued impact to fish, as well as water quality. dredging is made in

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3: • it is likely that dredging activity will need to take into account the protection of Section 6.6.4.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3: during critical migration periods. This would entail limiting dredging activity to water quality are

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:3:dredging and offshore disposal activities. For this reason, the study area shown in Figure 6.1 has been

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:4:2005 Maintenance dredging baseline document. ABPmer, 2005

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:4: Tees maintenance dredging baseline Royal Haskoning, 2007b Documents the maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:5: 2019a and 2020a) maintenance dredging and disposal for

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:5: QEII Berth Development – Environmental information about maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:5: dredging operations required for this

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:7: Maintenance dredging baseline

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:7: Documents the maintenance dredging material regularly

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:7: Tees maintenance dredging baseline removed from the Tees estuary, and the potential

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:7: document. implications of maintenance dredging and disposal for

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:7:2009 Royal Haskoning, 2009 dredging regimes and materials arising from above and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:7: possible effects from the proposed dredging operations

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:8:In addition, an analysis of historical data, including dredge and disposal volumes and land reclamation from

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:10: predict movement of suspended sediment from the proposed dredging and disposal activities by

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:10: was run for the entire dredging and disposal period under astronomic tidal and daily mean fluvial

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:10:the harbour and marina berths. All of these locations require dredging to maintain a safe navigable depth

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:12:of reaches require maintenance dredging to remove both sands and silts. The volume of sediments dredged

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:12:dredged from the river mouth and navigation approach channels within Tees Bay, with river silts mainly

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:12:dredged from within the berths and river channel further upstream in the Tees estuary.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:12:to allow bypassing of sediment, but observed accumulations upstream, and a 24% reduction in the dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:(Newlyn) (7.15m below CD). As a result of training works and deepening by dredging, the current depth at

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:the mouth is about double this natural level. Dredging and training works have occurred since the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:establishment of the first dredged channel of 4.3m from Middlesbrough Docks to the sea after 1853.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:only notable project undertaken since that time has been the dredging and re-strengthening of No.1 Quay

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:sediments) which is offset by maintenance dredging and disposal at offshore licenced disposal site Tees

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:PDT is required by the Tees and Hartlepool Port Authority Act 1966 to publish dredge depths; the published

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:Admiralty Charts show the maximum licensed depths for the channel and berths. A summary of the dredge

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:14.1m below CD were originally dredged to a deeper depth.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:access. The berth pocket within Tees Dock has been dredged to a depth of 14.5m below CD, with the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:13:general dock area dredged to 10.9m below CD.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:34:induced currents, vessel induced forces and re-suspension by dredging operations. These last two were

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:35: • Marine input: Comparison of the above figures with the present knowledge of the dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:35:Dredging activities

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:35:As part of this responsibility, PDT must maintain the advertised dredge depths within the defined areas

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:35:dredging in the thirteen reaches of the river shown in Figure 6.29 (as well as in berths within the Tees and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:35:within Tees Bay). Maintenance dredging practices have remained unchanged since 2005.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:35: Figure 6.29 Maintenance dredging reaches within the River Tees

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:Most dredging within the Tees occurs in the approach channel and low-middle estuary in order to maintain

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:access to berth pockets and impounded docks. TSHDs are currently used for the majority of the dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:dredgers have active bottom door offloading systems.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:PDT also operates its own 11m plough to supplement ongoing suction dredging operations through the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:removal of isolated high spots on the riverbed, primarily in frontages or confined areas. Plough dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:dredgings requiring disposal to sea.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:A summary of the maintenance dredged volumes (m³) by each reach from 2001 to 2019 is provided in Table

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:6.15 and shown in Figure 6.30. Data on dredging was obtained from PDT and extends the time series

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:originally presented in Royal Haskoning (2008) from 2001 to 2019. No dredging has been required within

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:Reach 0 during the reporting period. Note that these data also include maintenance dredging volumes from

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36: Volume of dredged material

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:Figure 6.30 Summary of volumes (m3) dredged and deposited offshore during the period 2001 to 2019

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:The total volume of maintenance dredged material has decreased below the average annual volume for the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:36:Over the 19-year period, the average volume maintenance dredged from the Tees reaches is 740,266m3,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:37:Table 6.15 Summary of the total volumes of dredged material disposal (m3) from 2001 to 2019

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:39:Maintenance dredge material (between 2001 and 2018) comprised around 180,000m3 of mud, mostly found

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:39:A review of the dredged sediment quality data is presented in Section 7.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:39:general, Tees Bay A (TY160) is used for the disposal of maintenance dredge arisings while Tees Bay C

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:39:(TY150) is used for capital dredge arisings. Tees Bay B (TY110) and Tees Bay Foreshore (TY170) are

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:39: dredged material. Some 1999, associated with the construction of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:39: 54 42.600N 00 58.600W maintenance dredging has been downstream Ro-Ro berths. Typical annual

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:40:Figure 6.31 Location of offshore maintenance and capital dredge disposal sites

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:40:6.5.2 Capital dredging and offshore disposal of dredged sediments

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:40:Capital dredging is required to: (i) create a berth pocket adjacent to the new quay; (ii) deepen the river

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:pocket, creating a finished depth of 13.6m below CD. Dredging of the channel and berthing pocket will yield

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:In total, approximately 1,800,000m3 of material will be dredged from the areas described over an

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:as ‘soft’ material) and Mercia Mudstone (classed as ‘hard’ material). Dredging will be undertaken using a

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:Each year, between 25 – 30 million tonnes (wet weight) of dredged marine sediments from ports, harbours

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:dredged from the proposed scheme will be taken to the Tees Bay C licensed offshore disposal site, some

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:The capital dredging within the river, using TSHD and BHD, and the disposal activities at the licensed

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:modelling of the sediment dispersion associated with the dredging and disposal activities, as well as the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:and run for the entire four month duration covering all proposed dredging and disposal activities. Wave

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:disturbance effects have been included. The dredging methods, schedule and sediment release settings

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:movement of dredgers and transport barges (including dredging, sailing, disposal and downtime) such that

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:sediment releases have been made near continuously throughout the dredging operations (except for

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:allowed periods of downtime) from along the centre line of the dredged areas, running along the axis of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:The overall dredging and disposal operations may be considered as four stages in the following sequence:

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41: • Stage 1: BHD working to dredge the upper soft material (above -5m CD) in the berthing pocket and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41: • Stage 2: BHD and TSHD working in parallel to dredge the middle soft material (below -5m CD) in

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41: • Stage 3: BHD working to dredge the bottom hard material in the berthing pocket and river channel

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41: • Stage 4: BHD and TSHD working in parallel to dredge the material in the Tees Dock turning circle

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:41:Results from the sediment dispersion modelling are discussed in turn for the dredging and disposal activities.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42: throughout the entire four-month period covered by the dredging and disposal simulations, but only

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42: extents of enhancement in SSC from any stage of the dredging or disposal operations during the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42: relevant stage of the dredging programme. It is important to note that this type of figure does not

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42: become affected by a plume at some point during the dredging or disposal activities (in some areas

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:Dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:end of the dredging transect to the north-eastern end.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:Peak concentrations from dredging are always local to the point of disturbance from dredging at the riverbed,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:on timing of release with respect to the phase of the tide and location of dredging within the berthing pocket

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:release from the south-western corner of the dredging transect during the ebb phase (Plot A) and flood

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:phase (Plot D) of the tide when the release is towards the north-eastern end of the dredging transect.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:When the dredger is at the south-western end of the transect, the maximum spatial extent of the plume on

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:42:Middlesbrough Dock. When the dredger is at the north-eastern end of the transect, the extent of the plume

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:43:Figure 6.32 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:43:capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:44:Figure 6.33 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:44:capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:45:Figure 6.34 (Plot C) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:45:capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:46:Figure 6.35 (Plot D) – Plume of enhanced SSCs arising from dredging activities during Stage 1 of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:46:capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:46:In order to determine a maximum ‘zone of influence’ from Stage 1 of the dredging activities, the maximum

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:46:values of enhancement in SSC from any phase of the dredging operations during Stage 1 have been plotted

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:46:release points along the dredging transect at the proposed scheme site. Further upstream and downstream

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:46:of the areas directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a short distance

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:46:from the point of dredging, and at the peripheries below 20mg/l) before merging with low background

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:47:Figure 6.36 Maximum enhanced SSCs arising from dredging activities during Stage 1 of the capital

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:47:dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:47:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:47:time, moving from the south-western end of each of two parallel dredging transects to the north-eastern

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:47:from the two dredger types, as show in Figures 6.37 and 6.38 (Plot A and Plot B show releases from the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:47:south-western and north-eastern ends of the two parallel dredging transects respectively). However, the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:48:Figure 6.37 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 2 of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:48:capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:Figure 6.38 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 2 of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:The maximum ‘zone of influence’ from Stage 2 of the dredging activities is shown in Figure 6.39 (please

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:note the earlier caution in interpreting this type of figure). This shows that during Stage 2 of the dredging,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:becomes wider; and (iii) at times two plumes are created by the in-parallel dredging activities. Despite these

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:release points along the dredging transects at the proposed scheme site. Further upstream and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:downstream of the areas directly dredged, the SSC enhancement drops markedly (typically below 50mg/l a

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:49:short distance from the point of dredging, and at the peripheries below 20mg/l) before merging with low

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:Figure 6.2 Maximum enhanced SSCs arising from dredging activities during Stage 2 of the capital

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:end of the dredging transect to the north-eastern end.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:of the dredging transect during the ebb phase (Plot A) and flood phase (Plot B) of the tide. Similar results

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:is towards the north-eastern end of the dredging transect. It can be seen that the maximum SSC values

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:and the spatial extents of the plume arising from Stage 3 of the dredging are much lower than those

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:50:of dredging is notably lower.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:51:Figure 6.40 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:51:capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:52:Figure 6.41 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:52:capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:53:Figure 6.42 (Plot C) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:53:capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:54:Figure 6.43 (Plot D) – Plume of enhanced SSCs arising from dredging activities during Stage 3 of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:54:capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:54:The maximum ‘zone of influence’ from Stage 3 of the dredging activities is shown in Figure 6.44 (please

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:54:note the earlier caution in interpreting this type of figure). This shows that during Stage 3 of the dredging,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:54:during both Stages 1 and 2 of the dredging (note the slight plume shown in the mid channel is a remnant of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:54:the Stage 2 dredging, which has not fully dissipated before Stage 3 commences). During Stage 3, the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:55:Figure 6.44 Maximum enhanced SSCs arising from dredging activities during Stage 3 of the capital

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:55:dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:55:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:55:end of each of two parallel dredging transects to the north-eastern end.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:55:Peak concentrations from dredging are always local to the point of disturbance from dredging at the riverbed,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:55:times in the dredging cycle, SSC values can become enhanced by typically 10 to 20mg/l between the point

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:56:Figure 6.45 (Plot A) – Plume of enhanced SSCs arising from dredging activities during Stage 4 of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:56:capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:57:Figure 6.46 (Plot B) – Plume of enhanced SSCs arising from dredging activities during Stage 4 of the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:57:capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:57:The maximum ‘zone of influence’ from Stage 4 of the dredging activities is shown in Figure 6.47 (please

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:57:note the earlier caution in interpreting this type of figure). This shows that during Stage 4 of the dredging,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:57:stages, the maximum SSC concentrations remain local to the point of dredging within the turning circle (up

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:57:to a few hundred mg/l). Further upstream and downstream of the areas directly dredged, the SSC

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:57:enhancement drops markedly (typically below 50mg/l a short distance from the point of dredging, and at the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:58:Figure 6.47 Maximum enhanced SSCs arising from dredging activities during Stage 4 of the capital

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:58:dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:58:The sediment plumes that arise from the four stages of the dredging could potentially affect areas of riverbed

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:58:of influence’ from Stages 1 - 4 inclusive of the dredging activities has been plotted in Figure 6.48 for the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:58:that during the predicted four months of dredging, all individual or coalesced plume effects are confined to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:58:Furthermore, all plumes associated with dredging of the berthing pocket and river channel in the vicinity of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:58:whilst all plumes associated with dredging of the turning circle are confined to the left bank (north of centre

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:59:Figure 6.3 Maximum enhanced SSCs (near-bed layer) arising from dredging activities during Stages 1 -

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:59:4 inclusive of the capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:60:Figure 6.49 Maximum enhanced SSCs (near-surface layer) arising from dredging activities during Stages

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:60:1 - 4 inclusive of the capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:60:Sediment suspended within the dredging plumes will fall to the riverbed, either soon after disturbance or

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:60:spillage occurring during the dredging operation (for coarser-grained sediment fractions), or at a point in

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:60:by this deposition. It can be seen that much of the sediment falls to the bed within the dredged areas (from

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:60:where it will be re-dredged to achieve the necessary bed depths), whilst the deposition that occurs in other

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:61:Figure 6.50 Maximum riverbed thickness change due to sediment deposition arising from dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:61:activities during Stages 1 - 4 inclusive of the capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:61: would be affected by the zone of influence of the dredging operations].

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:appreciable extent, with peak enhancements of between 15 and 85 mg/l during Stage 2 of the dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:programme (Figure 6.52). Whilst Stage 1 of the dredging also causes some enhancement in SSC at point

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:elevations in SSC drop rapidly after each dredging plume has dispersed, and return to baseline levels at

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:points of downtime or between successive dredging stages. There are no significant effects noted at the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:water quality sampling points during Stage 3 of the dredging and only negligible effects for a short duration

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:a very low value (6mm) throughout the entire dredging programme (Figure 6.53) and in reality some of this

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:material will become re-suspended by tidal currents or dredged during maintenance campaigns of the river

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:At the mudflat monitoring points, it is only during Stage 4 of the dredging that any discernible effects are

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:At the navigation monitoring points on the north bank, it is only during Stage 4 of the dredging that any

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:At the navigation monitoring points on the south bank, it is throughout Stages 1 and 2 of the dredging that

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:62:Stages 3 and 4 of the dredging, only negligible effects are noted, equivalent to variations within the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:63:re-suspended by tidal currents or will be removed during maintenance dredging campaigns of the river

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:68:is licensed for the disposal of dredged sediment and is routinely monitored as part of a national programme.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:68:During Stage 1 of dredging (with the BHD working to dredge the upper soft material (above -5m CD) in the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:68:The above cycle is repeated throughout all disposal events associated with Stage 1 of the dredging,

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:69:dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:70:dredging, the following descriptions focus on where particular aspects of subsequent stages differ from the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:70:During Stage 2 of the dredging activity (with the BHD and TSHD working in parallel to dredge the middle

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:70:TSHD. The pattern of dispersion following discharge of the BHD-dredged material is as described for Stage

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:70:cessation of TSHD discharge) the subsequent BHD-dredged material disposal is commenced at a common

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:71:dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:72:During Stage 3 of the dredging activity (with the BHD working to dredge the bottom hard material in the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:73:dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:74:During Stage 4 of the dredging activity (with the BHD and TSHD working in parallel to dredge the material

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:75:dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:76:dredging programme has been plotted in Figure 6.64 for the near-bed layer of the water column (please

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:77:inclusive of the capital dredging programme

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:78:event during Stage 1 of the capital dredging programme – local scale

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:79:event during Stage 1 of the capital dredging programme – wider scale

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:The river dredging and offshore disposal activities will both cause plumes of sediment to form close to the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:During dredging, there will be a release of sediment particles from the deliberate physical disturbance to the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:riverbed and, more significantly, from overflow when dredged material is loaded into the dredger’s hopper

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:(for TSHD) or the transport barge (for BHD). Such releases will be ongoing through each dredging cycle

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:until the dredging activity ceases due to downtime (e.g. adverse weather, vessel maintenance) or at

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:scheduled breaks between stages of dredging activity. During offshore disposal, a single hopper load will

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:Once a plume is generated, the highest SSC values will be recorded at the point of river dredging or offshore

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:81:During some stages of the dredging and disposal activities, most notably when both TSHD and BHD are

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:The plume effects arising from the river dredging are characterised by a short-lived localised increase in

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:SSC by a few hundred mg/l at the point of dredging activity, followed by a general dispersion in spatial extent

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:and reduction in concentration over following hours. Since the dredging is a near-continuous operation, the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:extents during the four different stages. During Stages 1-3 the dredging-related plume effects will be largely

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:Dock and Tees Dock. During Stage 4 the dredging-related plume effects will be largely confined to the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:and the Oil Terminal. Other than within the dredged areas, sediment deposition on the riverbed will be of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:occurs in the river channel or at jetties, it will subsequently be dredged as part of ongoing maintenance

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:dredging regimes, whilst material deposited back into the newly dredged areas will be re-dredged during

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:82:Overall, the changes in SSC and sediment deposition arising from the river dredging and offshore disposal

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:83:dredging to the Tees Dock turning circle and approach channel and to create a berth pocket.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:90: • The proposed new quay alignment and capital dredging to deepen the Tees Dock turning circle

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:90: dredging.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:90: deposition will require periodic dredging to maintain the design depths.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91: • There is no measurable change caused by the capital dredging at the Tees Dock turning circle.

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:that the increase in mean tidal prism as a result of the new quay’s set-back alignment and dredging of part

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:6.6.4 Maintenance dredging and offshore disposal of dredged sediments

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:In order to provide an estimate of the present annual average maintenance dredging undertaken in the

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:the proposed new quay), it can be assumed that the affected area covers approximately half of dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:reach 6 and approximately one-third of dredging reach 5 (these ‘dredging reaches’ are shown in the earlier

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:Between 2001 and 2019 inclusive, the average annual maintenance dredging in reach 5 was 3,585m3 and

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:maintenance dredging is evenly located through each dredging reach so that the spatial scaling described

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:maintenance dredging is likely to be due to the low levels of suspended sediment measured in this reach of

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:the river. By far the greatest contributions to the overall annual maintenance dredging total come from close

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:to the barrage in dredging reaches 1-3 inclusive or towards the estuary mouth in dredging reaches 8-11

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:inclusive. All non-contaminated material from maintenance dredging is usually taken to the Tees Bay A

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:a requirement for more material to become from this local reach dredged annually. Recognising this, a 10%

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:increase in annual maintenance dredging requirement may be a reasonable assumption recogising the low

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:baseline SSCs in this reach. Even under this scenario, the maintenance dredging from this reach local to

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:the new quay will still yield a very low overall contribution to the net annual maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:requirements from the estuary as a whole. Therefore the potential increase in maintenance dredging

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_6. Hydrodynamic and sedimentary regime.pdf:91:dredging and offshore disposal regimes.

R-2020-0684-ESM-PN 0684.pdf:1: STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT

R-2020-0684-ESM-336521 R_2020_0684_ESM - Demolition of existing quay, capital dredge and development of new quay at South Bank Wharf, Grangetown, Redcar - Phase 1.pdf:1:Planning consultation: Demolition of existing redundant quay structures, capital dredging

R-2020-0684-ESM-336521 R_2020_0684_ESM - Demolition of existing quay, capital dredge and development of new quay at South Bank Wharf, Grangetown, Redcar - Phase 1.pdf:2: shrouds on piling rigs, and dredging follow the route of the river, rather than crossing it, to

R-2020-0684-ESM-336521 R_2020_0684_ESM - Demolition of existing quay, capital dredge and development of new quay at South Bank Wharf, Grangetown, Redcar - Phase 1.pdf:2: • The application indicates that an area of SPA habitat will be lost as a result of dredging in

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_18. Air quality.pdf:8: Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_18. Air quality.pdf:11: Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_18. Air quality.pdf:13: Proposed Dredge and Excavation Envelope

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_18. Air quality.pdf:18: Dredging (one backhoe, one TSHD, two 6 20

R-2020-0684-ESM-PC1084_RHD-ZZ-XX-RP-Z-1100_18. Air quality.pdf:18:Vessels used for the proposed dredging would be in use for a relatively short amount of time (approximately

R-2020-0684-ESM-RCBC scoping opinion.pdf:2: Dredging of the River Tees

R-2020-0684-ESM-RCBC scoping opinion.pdf:4:Dredging Advice

R-2020-0684-ESM-RCBC scoping opinion.pdf:4:The applicant is reminded that dredging can have a number of negative impacts on the water

R-2020-0684-ESM-RCBC scoping opinion.pdf:4:populations. Dredging should only be undertaken in a manner that protects the environment.

R-2020-0684-ESM-RCBC scoping opinion.pdf:4:The applicant should consider the methodology to be used, the disposal of dredged material,

R-2020-0684-ESM-RCBC scoping opinion.pdf:6:include the construction, alteration or improvement of any works, dredging, or a deposit or

R-2021-0405-FFM-10035117-AUK-XX-XX-RP-ZZ-0293-01-South Bank Quay Strategy rev1.PDF:15:Permission for the construction of the Quay Wall and associated dredging operations was granted by

R-2021-0405-FFM-10035117-AUK-XX-XX-RP-ZZ-0293-01-South Bank Quay Strategy rev1.PDF:22:new quay wall and associated dredging activities has been submitted on behalf of STDC which is

R-2022-0755-CD-10035117-AUK-XX-XX-RP-ZZ-0520-04-Land West of Warrenby Redcar.pdf:344: to construction activities employing material dredged from a contaminated offshore borrow site;

R-2022-0755-CD-10035117-AUK-XX-XX-RP-ZZ-0520-01-Land West of Warrenby Redcar Preliminary Risk Assessment.pdf:326: to construction activities employing material dredged from a contaminated offshore borrow site;

R-2022-0755-CD-10035117-AUK-XX-XX-RP-ZZ-0428-04-LWoW_DQRA.pdf:13:to have included tipping of slag and the placement of hydraulic fill dredged from the River Tees. The Site was

R-2022-0755-CD-10035117-AUK-XX-XX-RP-ZZ-0428-04-LWoW_DQRA.pdf:17:placement of hydraulic fill dredged from the River Tees.

R-2022-0435-CD-INCA2022-12 HRA - SeAH South Bank Rev 1.pdf:7:“Demolition of existing redundant quay structures, capital dredging and development of new quay

R-2019-0331-SCP-MMO(1).pdf:1:alteration or improvement of any works, dredging, or a deposit or removal of a substance or object below

R-2019-0331-SCP-Letter to RCBC 19.05.20 Scoping Request FINAL.pdf:2: The proposed development essentially has four parts to it: the construction of new quays; dredging

R-2019-0331-SCP-Letter to RCBC 19.05.20 Scoping Request FINAL.pdf:3: Dredging

R-2019-0331-SCP-Letter to RCBC 19.05.20 Scoping Request FINAL.pdf:3: commercially viable tidal range, capital dredging will be required from three distinct areas as described

R-2019-0331-SCP-Letter to RCBC 19.05.20 Scoping Request FINAL.pdf:3: below. Dredge arisings will generally be deposited at sea outside the Tees Estuary.

R-2019-0331-SCP-Letter to RCBC 19.05.20 Scoping Request FINAL.pdf:3: will have a dredged berthing pocket that will be maintained up to -12.5 mCD. The berthing pocket will

R-2019-0331-SCP-Letter to RCBC 19.05.20 Scoping Request FINAL.pdf:3: Approach Channel: The existing river channel is dredged to -14.1mCD up to the Norsea Oil Terminal

R-2019-0331-SCP-Letter to RCBC 19.05.20 Scoping Request FINAL.pdf:3: dredged level reduces in steps to a minimum depth -5.7 mCD at the downstream end of the

R-2019-0331-SCP-Letter to RCBC 19.05.20 Scoping Request FINAL.pdf:3: Turning Area: A Turning Circle is located outside of Tees Dock. This is partly dredged to -10.4 mCD,

R-2019-0331-SCP-Letter to RCBC 19.05.20 Scoping Request FINAL.pdf:4: We attach a plan of the proposed dredged area which you will appreciate overlaps to a large extent

R-2019-0331-SCP-Letter to RCBC 19.05.20 Scoping Request FINAL.pdf:4: dredge for the project would be 2.5Mm3 (gross) or 1.6 Mm3 if carried in conjunction with the Northern

R-2019-0331-SCP-Letter to RCBC 19.05.20 Scoping Request FINAL.pdf:4: Gateway project. The latter involved a capital dredge of 4.5Mm3.

R-2019-0331-SCP-Officer Letter_R20190331SCP.pdf:2: Dredging of the River Tees

R-2019-0331-SCP-Officer Letter_R20190331SCP.pdf:4:Dredging Advice

R-2019-0331-SCP-Officer Letter_R20190331SCP.pdf:4:The applicant is reminded that dredging can have a number of negative impacts on the water

R-2019-0331-SCP-Officer Letter_R20190331SCP.pdf:4:populations. Dredging should only be undertaken in a manner that protects the environment.

R-2019-0331-SCP-Officer Letter_R20190331SCP.pdf:4:The applicant should consider the methodology to be used, the disposal of dredged material,

R-2019-0331-SCP-Officer Letter_R20190331SCP.pdf:6:include the construction, alteration or improvement of any works, dredging, or a deposit or

R-2019-0331-SCP-114582 (3).pdf:1:  Dredging of the River Tees

R-2019-0331-SCP-114582 (3).pdf:3:Dredging Advice

R-2019-0331-SCP-114582 (3).pdf:3:The applicant is reminded that dredging can have a number of negative impacts on the

R-2019-0331-SCP-114582 (3).pdf:3:migratory fish populations. Dredging should only be undertaken in a manner that protects

R-2019-0331-SCP-114582 (3).pdf:3:disposal of dredged material, and the timing of works. Decisions should be underpinned

R-2020-0411-FFM-Appendix 8.3 WFD.pdf:13: no marine dredging or piling activities are proposed

R-2020-0411-FFM-Appendix 8.3 WFD.pdf:27: Note that a footprint may also be a temperature or sediment plume. For dredging activity, a footprint is 1.5 times the dredge area.

R-2020-0411-FFM-Chapter 5 Planning Policy.pdf:26: d) identifying those wharves which can be used for the landing of marine-dredged sand and

R-2022-0587-CD-R 2020 0684 ESM DECISION NOTICE.pdf:1: CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND

R-2022-0587-CD-R 2020 0684 ESM DECISION NOTICE.pdf:1: PC1084-RHD-SB-EN-DR-EVC-1113_P01 Dredging Plan received by the LPA on

R-2022-0587-CD-61586_01 Covering Letter July 2022.pdf:1:“Demolition of existing redundant quay structures, capital dredging and development of new quay

R-2022-0587-CD-ApplicationFormRedacted.pdf:4: DEMOLITION OF EXISTING REDUNDANT QUAY STRUCTURES, CAPITAL DREDGING AND DEVELOPMENT OF NEW QUAY AND

R-2022-0587-CD-Officer report.pdf:1: CAPITAL DREDGING AND DEVELOPMENT OF

R-2022-0587-CD-Officer report.pdf:1:structures, capital dredging and development of new quay and associated works

R-2022-0587-CD-Decision Noitce.pdf:1: REDUNDANT QUAY STRUCTURES, CAPITAL DREDGING AND

R-2022-0587-CD-Decision Noitce.pdf:2: REDUNDANT QUAY STRUCTURES, CAPITAL DREDGING AND

R-2022-0587-CD-SBQ1-DCL-CIV-SBKXX-CA-CE-000006 (1).pdf:4: • Capital dredging to create a new berth pocket and deepen the approach

R-2022-0587-CD-SBQ1-DCL-CIV-SBKXX-CA-CE-000006 (1).pdf:6: BS 6349-5 Maritime works, Part 5 – Code of practice for dredging and land reclamation

R-2022-0587-CD-SBQ1-DCL-CIV-SBKXX-CA-CE-000006 (1).pdf:22: • Capital dredging to create a new berth pocket and deepen the approach

R-2022-0587-CD-SBQ1-DCL-CIV-SBKXX-CA-CE-000006 (1).pdf:24: BS 6349-5 Maritime works, Part 5 – Code of practice for dredging and land reclamation

R-2023-0179-SCP-HyGreen Production Facility Scoping Report_FINAL.pdf:13: Works, believed to be using a mixture of slag imported via railway lines and dredged

R-2023-0179-SCP-HyGreen Production Facility Scoping Report_FINAL.pdf:116: rate of 12 million tonnes per annum (dry weight), as well as associated dredging

R-2020-0819-ESM-Dorman Point ES - Vol 3 - Chapter A - Introduction and Background - Dec 2020.PDF:27: RCBC but it is confirm target dredging (to deepen the northern half of the Tees Dock turning circle, a section

R-2020-0819-ESM-Dorman Point ES - Vol 3 - Chapter A - Introduction and Background - Dec 2020.PDF:27: submission will be once application disposal of dredged sediments and construction and operation of a new quay

R-2020-0819-ESM-Dorman Point ES - Vol 3 - Chapter E - Noise & Vibration - Dec 2020.PDF:14:also be bought forward for a new quay and dredging within the River Tees in addition to land-based

R-2020-0819-ESM-Dorman Point ES - Vol 3 - Chapter E - Noise & Vibration - Dec 2020.PDF:15: • All marine elements associated with the new quay and dredging will be covered in a separate

R-2020-0819-ESM-Dorman Point ES - Vol 2 - Chapter B -Site Description and Scheme Proposals - Dec 2020.PDF:17: Infrastructure along the river bank at South Bank, capital dredging to create a berth pocket

R-2020-0819-ESM-Dorman Point ES - Vol 2 - Chapter B -Site Description and Scheme Proposals - Dec 2020.PDF:17: overlap between the phase 1 and 2 areas where an element of dredging will need to take

R-2020-0819-ESM-Dorman Point ES - Vol 2 - Chapter B -Site Description and Scheme Proposals - Dec 2020.PDF:17: dredging of the approach channel and berth pocket and the disposal of the dredged material

R-2020-0819-ESM-Dorman Point ES - Vol 3 - Chapter N - Cumulative Effects - Dec 2020.PDF:28: RCBC but it is confirm target dredging (to deepen the northern half of the Tees Dock turning circle, a section

R-2020-0819-ESM-Dorman Point ES - Vol 3 - Chapter N - Cumulative Effects - Dec 2020.PDF:28: submission will be once application disposal of dredged sediments and construction and operation of a new quay

R-2020-0819-ESM-Dorman Point ES - Vol 2 - Chapter M - Waste and Materials Management - Dec 2020(1).PDF:9: d Identifying those wharves which can be used for the landing of marine-dredged sand

R-2020-0819-ESM-Dorman Point ES - Vol 2 - Chapter N - Cumulative and Residual Effects - Dec 2020.PDF:20: application, on is yet (including an electrical substation), capital dredging (to confirm target proposed development is located

R-2020-0819-ESM-Dorman Point ES - Vol 2 - Chapter N - Cumulative and Residual Effects - Dec 2020.PDF:20: d to berth pocket), offshore disposal of dredged sediments has been

R-2020-0819-ESM-Dorman Point ES - Vol 2 - Chapter A - Introduction and Background - Dec 2020.PDF:18: STDC to be electrical substation), capital dredging (to determination date at the South Bank site on the bank

R-2020-0819-ESM-Dorman Point ES - Vol 2 - Chapter A - Introduction and Background - Dec 2020.PDF:18: it is pocket), offshore disposal of dredged

R-2023-0277-CD-10035117-AUK-XX-XX-RP-ZZ-623-01-Data Gap Areas GQRA.pdf:9:to have included tipping of slag and the placement of hydraulic fill dredged from the River Tees. The Site was

R-2023-0277-CD-10035117-AUK-XX-XX-RP-ZZ-623-01-Data Gap Areas GQRA.pdf:13:railway sidings and the placement of hydraulic fill dredged from the River Tees. The DGA are all located in the

R-2023-0277-CD-10035117-AUK-XX-XX-RP-ZZ-623-01-Data Gap Areas GQRA.pdf:60: MADE GROUND: Loose greyish beige brown hydraulic fill of silts and fine sands from dredged

R-2020-0822-ESM-Long Acres ES - Vol 2 - Chapter M - Waste and Materials Management - Dec 2020.PDF:9: d Identifying those wharves which can be used for the landing of marine-dredged sand

R-2020-0822-ESM-Long Acres ES - Vol 2 - Chapter N - Cumulative Effects - Dec 2020.PDF:22: application, on is yet (including an electrical substation), capital dredging (to confirm target proposed development is located

R-2020-0822-ESM-Long Acres ES - Vol 2 - Chapter N - Cumulative Effects - Dec 2020.PDF:22: d to berth pocket), offshore disposal of dredged sediments has been

R-2020-0822-ESM-Long Acres ES - Vol 3 - Chapter A - Intro and Background - Dec 2020.PDF:27: RCBC but it is confirm target dredging (to deepen the northern half of the Tees Dock turning circle, a section

R-2020-0822-ESM-Long Acres ES - Vol 3 - Chapter A - Intro and Background - Dec 2020.PDF:27: submission will be once application disposal of dredged sediments and construction and operation of a new quay

R-2020-0822-ESM-Long Acres ES - Vol 2 - Chapter B - Site and Scheme Description - Dec 2020.PDF:17: Infrastructure along the riverbank at South Bank, capital dredging to create a berth pocket

R-2020-0822-ESM-Long Acres ES - Vol 2 - Chapter B - Site and Scheme Description - Dec 2020.PDF:17: overlap between the phase 1 and 2 areas where an element of dredging will need to take

R-2020-0822-ESM-Long Acres ES - Vol 2 - Chapter B - Site and Scheme Description - Dec 2020.PDF:17: dredging of the approach channel and berth pocket and the disposal of the dredged material

R-2020-0822-ESM-Long Acres ES - Vol 2 - Chapter A - Intro and Background - Dec 2020.PDF:18: STDC to be electrical substation), capital dredging (to determination date at the South Bank site on the bank

R-2020-0822-ESM-Long Acres ES - Vol 2 - Chapter A - Intro and Background - Dec 2020.PDF:18: but it is pocket), offshore disposal of dredged

R-2020-0822-ESM-Long Acres ES - Vol 3 - Chapter E - Noise & Vibration - Dec 2020.PDF:14:also be bought forward for a new quay and dredging within the River Tees in addition to land-based

R-2020-0822-ESM-Long Acres ES - Vol 3 - Chapter E - Noise & Vibration - Dec 2020.PDF:15: • All marine elements associated with the new quay and dredging will be covered in a separate

R-2020-0822-ESM-Long Acres ES - Vol 2 - Chapter D - Biodiversity and Ecology - Dec 2020(1).PDF:23: nutrient-rich material dredged from The Fleet in the past. It is assessed as being of Site

R-2023-0227-CD-TV_ERF_Shadow_HRA.pdf:73:land-claim, construction of breakwaters and training walls, and deep dredging. The remaining

171019South-Tees-Master-Plan-19-Nov-17.pdf:44: 0.00M DREDGED CHANNEL DEPTHS SHOWN IN 'METRES LAT'

171019South-Tees-Master-Plan-19-Nov-17.pdf:108: nections draught at the quay interface, via pocket dredging. of up to 10 million cubic metres. This offers ample space