Case study:Dagenham Brook de-silting - Revision history

Alexrrc at 12:43, 1 November 2018

2018-11-01T12:43:43Z

← Older revision		Revision as of 12:43, 1 November 2018
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	\|Works completed=2009/01/01		\|Works completed=2009/01/01
	\|Total cost category=100 - 500 k€		\|Total cost category=100 - 500 k€
	\|Funding sources=~~Capital works (EA FCRM)~~		\|Funding sources=Environment Agency Flood and Coastal Risk Management,
	}}		}}
	{{Motivations		{{Motivations

Alexrrc at 10:07, 31 May 2017

2017-05-31T10:07:12Z

← Older revision		Revision as of 10:07, 31 May 2017
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	}}		}}
	{{Measures		{{Measures
	\|Bank and bed modifications measure=~~Removing~~ of ~~sediments~~		\|Bank and bed modifications measure=Removal of sediment
	}}		}}
	{{Hydromorphological_quality_elements_header}}		{{Hydromorphological_quality_elements_header}}

Hazel Wilson at 10:47, 27 October 2015

2015-10-27T10:47:46Z

@@ Line 29: / Line 29: @@
 }}
 {{Site
-|Name=
+|WFD water body code=GB106038077852
+|WFD water body name=Lee (from Tottenham Locks to the Tideway)
+|Heavily modified water body=No
+|Protected species present=No
-|WFD water body code=
+|Invasive species present=No
 }}
 {{Project background

JoshRRC at 07:37, 22 October 2014

2014-10-22T07:37:06Z

← Older revision		Revision as of 07:37, 22 October 2014
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	{{~~Case_study_status~~		{{Case study status
	\|Approval status=		\|Approval status=Approved






	~~Draft~~
	}}		}}
	{{Location		{{Location

JoshRRC at 07:36, 22 October 2014

2014-10-22T07:36:29Z

← Older revision		Revision as of 07:36, 22 October 2014
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	{{Additional_Documents}}		{{Additional_Documents}}
	{{Additional_Documents_end}}		{{Additional_Documents_end}}
	{{~~Additional_links_and_references_header~~}}		{{Additional links and references header}}
			{{Additional links and references
			\|Link=http://www.land-water.co.uk/dredging-dagenham-brook
			\|Description=1
			}}
	{{Additional_links_and_references_footer}}		{{Additional_links_and_references_footer}}
	{{Supplementary_Information		{{Supplementary_Information

JoshRRC at 07:36, 22 October 2014

2014-10-22T07:36:04Z

← Older revision		Revision as of 07:36, 22 October 2014
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	\|Contact organisation url=www.gov.uk/government/organisations/environment-agency		\|Contact organisation url=www.gov.uk/government/organisations/environment-agency
	\|Multi-site=No		\|Multi-site=No
			\|Project picture=Dagenham-Brook-Dredge-Land-Water-Case-Study.jpg
	\|Project summary=Reduce flood risk improve channel conveyancing, improve health and safety for light water course maintenance. Reduce flood risk and channel capacity, remove dangerous deep pockets of heavily contaminated silts. WFD driven.		\|Project summary=Reduce flood risk improve channel conveyancing, improve health and safety for light water course maintenance. Reduce flood risk and channel capacity, remove dangerous deep pockets of heavily contaminated silts. WFD driven.

			A 1.5km long ditch, which historically had been over dredged and subsequently not been maintained for years due to difficult access and inconsistent deep silt, required an over haul.

			It was anticipated that there was 4,400t of silt to be removed, half of which was expected to be hazardous Land and Water Services could see flaws in the historic silt test results and therefore undertook additional sampling and detailed testing which enabled the silt to be reclassified as 100% non-hazardous. Furthermore rather than dredging down to the previously over dredged hard bed level, Land & Water designed a solution which reduced the volume of silt to be removed, and therefore the cost of the works, but provided the Environment Agency with a firm and level bed for future access and maintenance (*1)
	}}		}}
	{{Image_gallery}}		{{Image_gallery}}

Ivo at 09:58, 25 April 2014

2014-04-25T09:58:43Z

@@ Line 92: / Line 92: @@
 }}
 {{Measures
-|Bank and bed modifications measure=
+|Bank and bed modifications measure=Removing of sediments
 }}
 {{Hydromorphological_quality_elements_header}}

Ivo at 09:58, 25 April 2014

2014-04-25T09:58:32Z

← Older revision		Revision as of 09:58, 25 April 2014
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	}}		}}
	{{Motivations		{{Motivations
	\|~~Hydromorphological quality elements~~=		\|Specific mitigation=Flood risk management
			\|Physico-chemical quality elements=Specific non-synthetic pollutants, Specific synthetic pollutants


	~~\|Biological quality elements=~~

	\|Physico-chemical quality elements=

	\|Specific ~~mitigation=~~

	~~\|Other motivation=~~

	}}		}}
	{{Measures		{{Measures

Ivo at 11:28, 10 April 2014

2014-04-10T11:28:43Z

← Older revision		Revision as of 11:28, 10 April 2014
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	{{Toggle_button}}		{{Toggle_button}}
	{{Toggle_content_start}}		{{Toggle_content_start}}
	{{~~Case_study_subcatchment~~		{{Case study subcatchment
	\|Subcatchment=		\|Subcatchment=Lee (from Tottenham Locks to the Tideway)







	}}		}}
	{{Site		{{Site

Ivo at 10:32, 10 April 2014

2014-04-10T10:32:02Z

← Older revision		Revision as of 10:32, 10 April 2014
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	\|Works completed=2009/01/01		\|Works completed=2009/01/01
	\|Total cost category=100 - 500 k€		\|Total cost category=100 - 500 k€
			\|Funding sources=Capital works (EA FCRM)
	}}		}}
	{{Motivations		{{Motivations