Case study:West Amesbury
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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||Environmental flows and water resources, Habitat and biodiversity, Hydromorphology|
|Main contact forename||Martijn|
|Main contact surname||Antheunisse|
|Main contact user ID||User:Martijnantheunisse|
|Contact organisation||Wiltshire Wildlife Trust|
|Contact organisation web site||http://www.wiltshirewildlife.org|
|Partner organisations||Environment Agency, Natural England, Wessex Water, Wiltshire Fishery Association, The Piscatorial Society|
|Parent multi-site project|
| This is a parent project
encompassing the following
The project’s aims were to undo the effects of detrimental physical alteration in the past, such as dredging and channelization; sediment issues; and loss of habitat for fish and plants. These aims were tackled through the following objectives:
Drought proofing rivers Mitigating climate change (hydrology, temperature) by reinstating natural processes of erosion and deposition and planting trees for shade and as a future source of natural woody debris.
Reducing the amount of sediment within the channel By promoting scour of the river bed through increasing flow velocity and by installing brushwood structures to act as sediment traps, the project will improve the site for salmonid spawning as well as helping to maintain the signature ‘gin clear’ waters of a chalk stream.
Create habitat for fish, plants The structures installed in this project are aimed to provide habitat for a variety of plants, fish, invertebrates, birds and mammals, either through the introduction of food in the form of woody debris and leaf matter, or the provision of spawning habitat and cover.
Monitoring surveys and results
The project site is being monitored by the Piscatorial Society. Monitoring involves invertebrate sampling, electro-fish survey and fixed point photography. Results have yet to be analysed.
Archaeological considerations and heavy rainfall/flooding both caused considerable delay and a change in the scope of this project. Due to the proximity of the Stonehenge World Heritage site, English Heritage was not happy with the original restoration plan, so the project was delayed to re-plan. During this time the area received record rainfall, leading to flooding which prevented work from being undertaken. For future projects, further time should be allowed to fully investigate potential archaeological issues and allow for bad weather/environmental delays.
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