Case study:Beverley Brook Flow control structures

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Location: 51° 27' 56.77" N, 0° 15' 8.12" W

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Project overview

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Status	Complete
Project web site
Themes	Environmental flows and water resources, Fisheries, Flood risk management, Habitat and biodiversity
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	Friends of Barnes Common, London Borough of Richmond upon Thames
Parent multi-site project
This is a parent project encompassing the following projects	No

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Project summary

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Model the effects of altering the two flow control structures with a view to sending more low flows down the natural channel and taking excess flow downs the two culverts when water levels rise. The Beverley Brook natural channel only takes 20% of the flow during normal flow rates, which impacts the geomorphology, silt carrying capacity and habitat value of the brook downstream of the flow control structures.

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Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district Thames River basin London Subcatchment River name Beverley Brook (Motspur Park to Thames) and Pyl Brook at West Barnes Area category 1000 - 10000 km² Area (km2) Maximum altitude category 100 - 200 m Maximum altitude (m) 172172 m <br />0.172 km <br />17,200 cm <br /> Dominant geology Calcareous Ecoregion Great Britain Dominant land cover Suburban Waterbody ID GB106039022850 Other case studies in this subcatchment: Anton Crescent Wetlands Regeneration, Ashlone Wharf FCRM scheme, Barn Elms Sports Ground, Barn Elms Wetland Centre, South West London, Barnes Common, Barnes Common improvements, Beverley Brook d/s of Rock’s Lane, Beverley Park, Cuddington Park, Horne Way Weir... further results Site Edit site Name WFD water body codes GB106039022850 WFD (national) typology WFD water body name Beverley Brook (Motspur Park to Thames) and Pyl Brook at West Barnes 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) 2600 m2.6 km <br />260,000 cm <br /> 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 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 Impoundments (not hydropower) Hydromorphology Channel pattern/planform, Freshwater flow regime 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 Modelling, Monitoring strategy 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