Case study:Sherborne Windrush Restoration Project: Difference between revisions
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Revision as of 09:23, 30 May 2013
This case study is pending approval by a RiverWiki administrator.
Project overview
| Status | In progress |
|---|---|
| Project web site | |
| Themes | Habitat and biodiversity, Social benefits, Water quality |
| Country | England |
| Main contact forename | Vaughan |
| Main contact surname | Lewis |
| Main contact user ID | |
| Contact organisation | Cotswold Flyfishers |
| Contact organisation web site | http://www.cotswoldsriverstrust.org |
| Partner organisations | National Trust |
| Parent multi-site project | |
| This is a parent project encompassing the following projects |
No |
Project summary
The Sherborne Windrush Restoration Project is a partnership project that will use CRF funds to improve the River Windrush and the Sher-borne Brook in the Sherborne area of Glouces-tershire.
The river suffers from a degraded habitat aris-ing from insensitive dredging which has re-moved river bed gravels and built up banks causing a disconnect from the water meadows as well as suppressing in-stream habitat varia-tion. There are also problems caused by dif-fuse agricultural pollution and areas of over-sharing. These issues are preventing this stretch of water from meeting the required standards under the Water Framework Di-rective (WFD). This project will build on the work already completed by addressing the following issues: inadequate levels of fish spawning gravels; lack of in-stream habitat variation; pollution from agricultural run off; poaching of the banks by cattle; lack of hydrological connectivity with the flood plain; over shading by streamside vegetation.
Monitoring surveys and results
Lessons learnt
Catchment and subcatchment
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(affects all case studies in this subcatchment)
Site
| Name | River Windrush |
|---|---|
| WFD water body codes | |
| WFD (national) typology | |
| WFD water body name | |
| Pre-project morphology | |
| Reference morphology | Re-connection to the meadows |
| Desired post project morphology | |
| Heavily modified water body | No |
| National/international site designation | |
| Local/regional site designations | |
| Protected species present | No |
| Invasive species present | No |
| Species of interest | |
| Dominant hydrology | |
| Dominant substrate | |
| River corridor land use | Intensive agriculture (arable) |
| Average bankfull channel width category | |
| Average bankfull channel width (m) | |
| Average bankfull channel depth category | |
| Average bankfull channel depth (m) | |
| Mean discharge category | |
| Mean annual discharge (m3/s) | |
| Average channel gradient category | |
| Average channel gradient | |
| Average unit stream power (W/m2) |
Project background
| Reach length directly affected (m) | |
|---|---|
| Project started | |
| Works started | |
| Works completed | |
| Project completed | |
| Total cost category | 100 - 500 k€ |
| Total cost (k€) | 109.636109.636 k€ <br />109,636 € <br /> |
| Benefit to cost ratio | |
| Funding sources |
Cost for project phases
| Phase | cost category | cost exact (k€) | Lead organisation | Contact forename | Contact surname |
|---|---|---|---|---|---|
| Investigation and design | |||||
| Stakeholder engagement and communication | |||||
| Works and works supervision | |||||
| Post-project management and maintenance | |||||
| Monitoring |
Reasons for river restoration
Measures
Structural measures
| |
|---|---|
| Bank/bed modifications | |
| Floodplain / River corridor | |
| Planform / Channel pattern | |
| Other | |
Non-structural measures
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| Management interventions | |
| Social measures (incl. engagement) | |
| Other | |
Monitoring
Hydromorphological quality elements
| Element | When monitored | Type of monitoring | Control site used | Result | ||
|---|---|---|---|---|---|---|
| Before measures | After measures | Qualitative | Quantitative | |||
Biological quality elements
| Element | When monitored | Type of monitoring | Control site used | Result | ||
|---|---|---|---|---|---|---|
| Before measures | After measures | Qualitative | Quantitative | |||
Physico-chemical quality elements
| Element | When monitored | Type of monitoring | Control site used | Result | ||
|---|---|---|---|---|---|---|
| Before measures | After measures | Qualitative | Quantitative | |||
Any other monitoring, e.g. social, economic
| Element | When monitored | Type of monitoring | Control site used | Result | ||
|---|---|---|---|---|---|---|
| Before measures | After measures | Qualitative | Quantitative | |||
Monitoring documents
Image gallery
Additional documents and videos
Additional links and references
| Link | Description |
|---|
Supplementary Information
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