Case study:Stanmore Marsh

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Location: 51° 36' 27.58" N, 0° 18' 2.44" W

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Project overview

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Status	Planned
Project web site
Themes	Flood risk management
Country	England
Main contact forename	Michael
Main contact surname	Bradshaw
Main contact user ID
Contact organisation	London Borough of Harrow
Contact organisation web site
Partner organisations
Parent multi-site project
This is a parent project encompassing the following projects	No

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Project summary

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This project is one of a number of flood storage/river & marsh restoration projects that have been in development dating back pre Flood & Water Management Act. The main objectives for this project are to make space for water through 3000m3 of flood storage, improve the river corridor hydrology, biodiversity, public space amenity including access for all and opportunity for encouraging water environmental education and more healthy lifestyles through wetland and woodland walks and nature trails. This will provide a basis to achieve the wider and longer term aims to improving water quality, more diverse flora, fauna, ecology, wildlife and habitat.

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Catchment and subcatchment Select a catchment/subcatchment Site Edit site Name Stanmore Marsh 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) 0.8km800 m <br />80,000 cm <br /> Project started Works started Works completed Project completed Total cost category Total cost (k€) Benefit to cost ratio Funding sources Funded from GLA Big Green Fund II, Harrow Drainage Capital £100, 000 and Section 106 funding from housing development and Local Area Agreement 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 Physical, point source and diffuse pollution 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