Case study:Removing Sheepmount weir, River Caldew, Carlisle, Cumbria

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Location: 54° 54' 5.65" N, 2° 56' 45.37" W

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Project overview

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Status	Complete
Project web site	http://www.edenriverstrust.org.uk/removing-weirs-eden
Themes	Fisheries, Flood risk management, Habitat and biodiversity, Urban
Country	England
Main contact forename	Daniel
Main contact surname	Brazier
Main contact user ID	User:danielb
Contact organisation	Eden Rivers Trust
Contact organisation web site	http://www.edenriverstrust.org.uk/
Partner organisations	Environment Agency, Natural England, Eden Rivers Trust, West Cumbria Rivers Trust, South Cumbria Rivers Trust
Parent multi-site project	Case_study:Cumbria River Restoration Strategy
This is a parent project encompassing the following projects	No

Sheepmount weir, River Caldew, Carlisle, Cumbria

Project summary

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Removing Sheepmount weir in the River Caldew, Carlisle, Cumbria

This project is part of the Cumbria River Restoration Strategy (RRS), a partnership project involving the Environment Agency, Natural England and the three Cumbrian Rivers Trusts - Eden Rivers Trust, West Cumbria Rivers Trust and South Cumbria Rivers Trust. The Cumbria RRS aims to create a healthier and more sustainable environment for both people and wildlife.

A feasibility study of the removal of this weir was undertaken by JBA Consulting in 2016 to identify the most appropriate option. All the necessary permissions and consents were then obtained and extensive consultation was undertaken. Local contractors were employed to undertake the ground works in August 2016.

For more details and to see a film of the removal please see the project page on our website http://www.edenriverstrust.org.uk/removing-weirs-eden

Monitoring surveys and results

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Fixed point photographs will be used to monitor the visible physical effects on the river of removing the weir.

Lessons learnt

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The preparatory work for these weir removals involved:

• “Weir removal/modification Feasibility Appraisal” by JBA Consulting, covering hydrology, ecology, structure, services, contamination, cultural heritage and concept design.
• Planning Permission application (16/0459).
• Impoundment Licence application (NW/076/0006/005).
• Environmental Permit application (EPR/RB3396JX).
• Consultation and formal agreement with weir owners.
• Consultation with local community groups, interest groups and Councillors.
• Consultation with Local Authorities and other relevant statutory agencies.
• Appropriate survey and mitigation for otters, bats, trees, crayfish, fish and invasive species.
• Design & tender of ground works.
• Health & Safety requirements.
• Construction Design & Management Regulations.
• Pollution control measures.
• Archaeological Watching Brief.
• Monitoring.
• Publicity.

Image gallery

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Sheepmount weir, River Caldew, Carlisle, Cumbria before removal

Sheepmount weir, River Caldew, Carlisle, Cumbria before removal

Sheepmount weir, River Caldew, Carlisle, Cumbria after removal

Sheepmount weir, River Caldew, Carlisle, Cumbria after removal

Sheepmount weir, River Caldew, Carlisle, Cumbria after removal

Sheepmount weir, River Caldew, Carlisle, Cumbria before removal

Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district Solway Tweed River basin Eden and Esk Subcatchment River name River Caldew d/s Caldbeck Area category 100 - 1000 km² Area (km2) Maximum altitude category 200 - 500 m Maximum altitude (m) 307307 m <br />0.307 km <br />30,700 cm <br /> Dominant geology Calcareous Ecoregion Great Britain Dominant land cover Improved grassland Waterbody ID GB102076073880 Site Edit site Name River Caldew WFD water body codes WFD (national) typology WFD water body name Pre-project morphology Reference morphology 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 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 Edit project background Reach length directly affected (m) Project started Works started Works completed Project completed Total cost category Total cost (k€) 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 1289612,896 k€ <br />12,896,000 € <br /> Stakeholder engagement and communication Works and works supervision 91099,109 k€ <br />9,109,000 € <br /> Post-project management and maintenance Monitoring Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Hydromorphology Channel pattern/planform Biology Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Weir removal Floodplain / River corridor Planform / Channel pattern Other Non-structural measures Management interventions Social measures (incl. engagement) Other Monitoring Hydromorphological quality elements Edit Hydromorphological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Biological quality elements Edit biological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Physico-chemical quality elements Edit 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 Edit Other responses Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Monitoring documents Upload monitoring documents Additional documents and videos Upload additional documents Additional links and references Edit links and references Link Description http://www.edenriverstrust.org.uk/removing-weirs-eden video of removal Supplementary Information Edit Supplementary Information