Case study:Sherborne Windrush Restoration Project: Difference between revisions

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{{Project overview
{{Project overview
|Status=In progress
|Status=Complete
|Themes=Habitat and biodiversity, Social benefits, Water quality
|Themes=Habitat and biodiversity, Social benefits, Water quality
|Country=England
|Country=England
|Main contact forename=Vaughan
|Main contact forename=Vaughan
|Main contact surname=Lewis
|Main contact surname=Lewis
|Contact organisation=Cotswold Flyfishers
|Contact organisation=Cotswold Rivers Trust
|Contact organisation url=www.cotswoldsriverstrust.org
|Contact organisation url=www.cotswoldsriverstrust.org
|Partner organisations=National Trust; Environment Agency; Defra; River Restoration Centre
|Partner organisations=Cotswold Flyfishers, National Trust, Environment Agency, Defra, River Restoration Centre
|Multi-site=No
|Multi-site=No
|Project picture=River Windrush.JPG
|Project picture=River Windrush.JPG
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The river suffers from a degraded habitat aris-ing from insensitive dredging which has removed 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 Directive (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.
The river suffers from a degraded habitat aris-ing from insensitive dredging which has removed 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 Directive (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.
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|File name=Map.JPG
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{{Case study subcatchment
{{Case study subcatchment
|Subcatchment=River Windrush
|Subcatchment=Sherbourne Brook
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{{Site
{{Site
|Name=River Windrush
|Name=River Windrush
|WFD water body code=GB106039030460
|WFD water body name=Sherbourne Brook
|Reference morphology=Re-connection to the meadows
|Reference morphology=Re-connection to the meadows
|Heavily modified water body=No
|Heavily modified water body=No
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{{Project background
{{Project background
|Reach length directly affected=2000
|Project started=2012/08/01
|Project completed=2015/12/31
|Total cost category=100 - 500 k€
|Total cost category=100 - 500 k€
|Total1 cost=109.636
|Total1 cost=109.636
|Funding sources=Defra Catchment Restoration Fund,
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{{Motivations
{{Motivations
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{{Monitoring documents}}
{{Monitoring documents}}
{{Case study monitoring documents
|Monitoring document=TH004 monitoring framework table.docx
|Description=RRC Monitoring table - Sherborne Windrush
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{{Supplementary Information}}
{{Supplementary Information}}
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Latest revision as of 12:18, 6 June 2017

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Location: 51° 49' 52.00" N, 1° 44' 51.66" W
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Project overview

Edit project overview
Status Complete
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 Rivers Trust
Contact organisation web site http://www.cotswoldsriverstrust.org
Partner organisations Cotswold Flyfishers, National Trust, Environment Agency, Defra, River Restoration Centre
Parent multi-site project
This is a parent project
encompassing the following
projects
No
River Windrush

Project summary

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The Sherborne Windrush Restoration Project is a partnership project that will use CRF funds to improve the River Windrush and the Sherborne Brook in the Sherborne area of Gloucestershire.

The river suffers from a degraded habitat aris-ing from insensitive dredging which has removed 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 Directive (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

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Lessons learnt

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Image gallery


Map.JPG
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Catchment and subcatchment

Catchment

River basin district Thames
River basin Cotswolds

Subcatchment

River name Sherbourne Brook
Area category 10 - 100 km²
Area (km2)
Maximum altitude category 200 - 500 m
Maximum altitude (m) 280280 m <br />0.28 km <br />28,000 cm <br />
Dominant geology Calcareous
Ecoregion Great Britain
Dominant land cover Arable and Horticulture
Waterbody ID GB106039030460



Site

Name River Windrush
WFD water body codes GB106039030460
WFD (national) typology
WFD water body name Sherbourne Brook
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) 20002,000 m <br />2 km <br />200,000 cm <br />
Project started 2012/08/01
Works started
Works completed
Project completed 2015/12/31
Total cost category 100 - 500 k€
Total cost (k€) 109.636109.636 k€ <br />109,636 € <br />
Benefit to cost ratio
Funding sources Defra Catchment Restoration Fund

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

Mitigation of a pressure
Hydromorphology Continuity for organisms, Structure & condition of riparian/lake shore zones
Biology
Physico-chemical Specific synthetic pollutants
Other reasons for the project Recreation


Measures

Structural measures
Bank/bed modifications
Floodplain / River corridor
Planform / Channel pattern
Other
Non-structural measures
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




Additional documents and videos


Additional links and references

Link Description

Supplementary Information

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