Case study:River Wandle: Butter Hill Phase 1
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- 1 Project overview
- 2 Image gallery
- 3 Catchment and subcatchment
- 4 Site
- 5 Project background
- 6 Reasons for river restoration
- 7 Measures
- 8 Monitoring
- 9 Additional documents and videos
- 10 Additional links and references
- 11 Supplementary Information
|Project web site|
|Themes||Fisheries, Habitat and biodiversity|
|Main contact forename||Bella|
|Main contact surname||Davies|
|Main contact user ID|
|Contact organisation||Wandle Trust|
|Contact organisation web site||http://www.wandletrust.org|
|Partner organisations||Wandle Trust, Wild Trout Trust, Environment Agency, London Borough of Sutton|
|Parent multi-site project|
| This is a parent project
encompassing the following
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".
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.
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.
Catchment and subcatchment
Select a catchment/subcatchment
Cost for project phases
Reasons for river restoration
Hydromorphological quality elements
Biological quality elements
Physico-chemical quality elements
Additional documents and videos