Case study:Wandle Valley Wetlands

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Location: 51° 23' 5.86" N, 0° 9' 51.48" W

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Project overview

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Status	Planned
Project web site
Themes	Fisheries, Habitat and biodiversity, Social benefits
Country	England
Main contact forename	Joanna
Main contact surname	Heisse
Main contact user ID
Contact organisation	Environment Agency
Contact organisation web site	http://www.gov.uk/government/organisations/environment-agency
Partner organisations	Sutton Council, EA, London Wildlife Trust
Parent multi-site project
This is a parent project encompassing the following projects	No

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Project summary

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River bank enhancements; backwater creation; tree works. The Wandle in this location has sections of good marginal vegetation with other sections which remain over-shaded and degraded with toe boarding. The Wandle Valley wetlands are a section of land on the bed of the river which could be enhanced with the creation of interlinked wetland areas, acting as backwaters to the Wandle. This would have multiple benefits, particularly with regard to fisheries in times of poor water quality and would create additional habitat to support water voles.

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Catchment and subcatchment Select a catchment/subcatchment Site Edit site Name WFD water body codes WFD (national) typology WFD water body name Pre-project morphology Reference morphology Desired post project morphology Heavily modified water body National/international site designation Local/regional site designations Protected species present Invasive species present 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) 300 m0.3 km <br />30,000 cm <br /> Project started 2008/01/01 Works started Works completed Project completed Total cost category Total cost (k€) Benefit to cost ratio Funding sources Viridor, Thames Water rehabilitation fund, Life+ fund, Natural England funding 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 Edit reasons for restoration Mitigation of a pressure Hydromorphology Biology Physico-chemical Other reasons for the project Measures Edit 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 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 Supplementary Information Edit Supplementary Information