Case study:River Wandle: Butter Hill Phase 1 - Revision history

Alexrrc at 12:14, 1 November 2018

2018-11-01T12:14:57Z

← Older revision		Revision as of 12:14, 1 November 2018
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	\|Works completed=2011/12/31		\|Works completed=2011/12/31
	\|Total cost category=10 - 50 k€		\|Total cost category=10 - 50 k€
	\|Funding sources=Environment Agency, Thames Water Wandle River Restoration Fund, ~~DEFRA~~		\|Funding sources=Environment Agency, Thames Water Wandle River Restoration Fund, Defra
	}}		}}
	{{Motivations		{{Motivations

Alexrrc at 15:31, 6 June 2017

2017-06-06T15:31:28Z

← Older revision		Revision as of 15:31, 6 June 2017
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	\|Contact organisation=Wandle Trust		\|Contact organisation=Wandle Trust
	\|Contact organisation url=www.wandletrust.org		\|Contact organisation url=www.wandletrust.org
	\|Partner organisations=Wandle Trust, Wild Trout Trust~~, Sutton County Council~~, Environment Agency,		\|Partner organisations=Wandle Trust, Wild Trout Trust, Environment Agency, London Borough of Sutton,
	\|Name of parent multi-site project=Case_study:River Wandle Restoration Project		\|Name of parent multi-site project=Case_study:River Wandle Restoration Project
	\|Multi-site=No		\|Multi-site=No

Alexrrc at 09:01, 2 June 2017

2017-06-02T09:01:54Z

← Older revision		Revision as of 09:01, 2 June 2017
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	{{Measures		{{Measures
	\|Bank and bed modifications measure=Weir modification,		\|Bank and bed modifications measure=Weir modification,
	\|Planform / Channel pattern=~~Installation~~ of fish ~~pass~~		\|Planform / Channel pattern=Creation of fish passes,
	}}		}}
	{{Hydromorphological_quality_elements_header}}		{{Hydromorphological_quality_elements_header}}

Alexrrc at 07:55, 1 June 2017

2017-06-01T07:55:24Z

← Older revision		Revision as of 07:55, 1 June 2017
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	}}		}}
	{{Measures		{{Measures
	\|Bank and bed modifications measure=Weir ~~improvement~~		\|Bank and bed modifications measure=Weir modification,
	\|Planform / Channel pattern=Installation of fish pass		\|Planform / Channel pattern=Installation of fish pass
	}}		}}

Pollygwenbryant at 15:44, 9 February 2016

2016-02-09T15:44:50Z

← Older revision		Revision as of 15:44, 9 February 2016
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	\|Contact organisation url=www.wandletrust.org		\|Contact organisation url=www.wandletrust.org
	\|Partner organisations=Wandle Trust, Wild Trout Trust, Sutton County Council, Environment Agency,		\|Partner organisations=Wandle Trust, Wild Trout Trust, Sutton County Council, Environment Agency,
	\|Name of parent multi-site project=Case_study:~~Butter Hill restoration project,~~ River Wandle		\|Name of parent multi-site project=Case_study:River Wandle Restoration Project
	\|Multi-site=No		\|Multi-site=No
	\|Project summary=This Project is part of a larger scheme with the overall aim of establishing a population of brown trout in the Carshalton arm of the River Wandle for the first time in over 80 years. For more background on this larger scheme, please refer to the parent project "River Wandle Restoration Project".		\|Project summary=This Project is part of a larger scheme with the overall aim of establishing a population of brown trout in the Carshalton arm of the River Wandle for the first time in over 80 years. For more background on this larger scheme, please refer to the parent project "River Wandle Restoration Project".

Pollygwenbryant: Pollygwenbryant moved page Case study:Wandle Trout Restoration to Case study:River Wandle: Butter Hill Phase 1

2016-02-09T15:42:33Z

Pollygwenbryant moved page Case study:Wandle Trout Restoration to Case study:River Wandle: Butter Hill Phase 1

← Older revision	Revision as of 15:42, 9 February 2016
(No difference)

Pollygwenbryant at 15:31, 9 February 2016

2016-02-09T15:31:39Z

← Older revision		Revision as of 15:31, 9 February 2016
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	}}		}}
	{{Location		{{Location
	\|Location=51.~~3703956604003~~, -0.~~159843116998672~~		\|Location=51.36809344333213, -0.16210089437663555
	}}		}}
	{{Project overview		{{Project overview

Pollygwenbryant at 14:22, 9 February 2016

2016-02-09T14:22:02Z

← Older revision		Revision as of 14:22, 9 February 2016
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	\|Contact organisation url=www.wandletrust.org		\|Contact organisation url=www.wandletrust.org
	\|Partner organisations=Wandle Trust, Wild Trout Trust, Sutton County Council, Environment Agency,		\|Partner organisations=Wandle Trust, Wild Trout Trust, Sutton County Council, Environment Agency,
			\|Name of parent multi-site project=Case_study:Butter Hill restoration project, River Wandle
	\|Multi-site=No		\|Multi-site=No
	\|Project summary=This Project is part of a larger scheme with the overall aim of establishing a population of brown trout in the Carshalton arm of the River Wandle for the first time in over 80 years. For more background on this larger scheme, please refer to the parent project "River Wandle Restoration Project".		\|Project summary=This Project is part of a larger scheme with the overall aim of establishing a population of brown trout in the Carshalton arm of the River Wandle for the first time in over 80 years. For more background on this larger scheme, please refer to the parent project "River Wandle Restoration Project".

Pollygwenbryant at 12:29, 9 February 2016

2016-02-09T12:29:37Z

← Older revision		Revision as of 12:29, 9 February 2016
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	\|Reach length directly affected=360 m		\|Reach length directly affected=360 m
	\|Project started=2009/01/01		\|Project started=2009/01/01
			\|Works started=2010/01/01
			\|Works completed=2011/12/31
	\|Total cost category=10 - 50 k€		\|Total cost category=10 - 50 k€
	\|Funding sources=Environment Agency, Thames Water Wandle River Restoration Fund, DEFRA		\|Funding sources=Environment Agency, Thames Water Wandle River Restoration Fund, DEFRA

Pollygwenbryant at 12:27, 9 February 2016

2016-02-09T12:27:10Z

← Older revision		Revision as of 12:27, 9 February 2016
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	\|Contact organisation=Wandle Trust		\|Contact organisation=Wandle Trust
	\|Contact organisation url=www.wandletrust.org		\|Contact organisation url=www.wandletrust.org
	\|Partner organisations=Wandle Trust, Wild Trout Trust, Sutton County Council, Environment Agency,		\|Partner organisations=Wandle Trust, Wild Trout Trust, Sutton County Council, Environment Agency,
	\|Multi-site=No		\|Multi-site=No
	\|Project summary=This ~~was the first phase in the~~ larger ~~River Wandle Restoration Project~~ with the overall aim ~~to establish~~ a population of brown trout in the Carshalton arm of the River Wandle for the first time in over 80 years.		\|Project summary=This Project is part of a larger scheme with the overall aim of establishing a population of brown trout in the Carshalton arm of the River Wandle for the first time in over 80 years. For more background on this larger scheme, please refer to the parent project "River Wandle Restoration Project".

	~~The overall objective of this larger~~ project was ~~to rehabilitate~~ the ~~Carshalton waterbody by improving habitat diversity~~ and ~~quality~~, fish ~~passage~~, ~~hydromorphology~~ and ~~water quality; with wild trout used as~~ the ~~indicator species for~~ the ~~river’s recovery~~.		This project was delivered in three phases working with the Environment Agency, the Wild Trout Trust and local volunteers.

			The first phase involved lowering three small weirs, which were a potential barrier to fish trying to move upstream to spawn, and restoring the natural flow of the river in this section.

			The second phase involved a ‘Practical Visit’ from the Wild Trout Trust through which Wandle Trust staff and over 50 volunteers were trained in simple river enhancement techniques. Woody debris was secured in the channel to vary the flow and create local scour on the river bed, increasing habitat diversity. Cover logs were raised off the riverbed and anchored to enable fish to take cover underneath when vegetation is sparse in winter.

	~~In 2010,~~ the ~~gradual lowering of 3 the three stabilising weirs was undertaken in partnership with the EA to improve both fish passage and flow regime. The EA also installed~~ a Larinier ~~Fish Pass~~ on a large weir at Butter Hill ~~Bridge but due to unforeseen site restrictions the pass was ineffective without modification.~~		The final phase incorporated the Environment Agency installing a Larinier fish pass on the large 1.8 m high weir at Butter Hill.
			\|Monitoring surveys and results=Please see the parent project (River Wandle Restoration Project) for the final results on this work, combined with the other phases.
	To compliment this work, the Wild Trout Trust (WTT) led a Practical Visit to enhance in-channel habitat and train Wandle Trust staff and 50 volunteers from the local community and TITT projects from around the country in river enhancement techniques. Large Woody Debris (LWD) was installed to produce good quality habitat for trout at all life stages: scoured spawning gravels, holding lies for adult trout and cover suitable for juvenile life stages of trout.
	\|Monitoring surveys and results=Please see the parent project (River Wandle Restoration Project) for the final results on this work, combined with the other phases.
	}}		}}
	{{Image_gallery}}		{{Image_gallery}}