Case study:Bury Lodge Wetlands

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Location: 51° 37' 56.14" N, 0° 4' 30.65" W

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Project overview

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Status	In progress
Project web site
Themes	Environmental flows and water resources, Flood risk management, Habitat and biodiversity, Monitoring, Social benefits, Water quality, Urban
Country	England
Main contact forename	Ian
Main contact surname	Russell
Main contact user ID
Contact organisation
Contact organisation web site
Partner organisations	London Borough of Enfield, Thames 21, Environment Agency
Parent multi-site project	Case_study:Rewilding Enfield's Urban Rivers
This is a parent project encompassing the following projects	No

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Project summary

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As part of the Thames21 project "the Salmons Brook Healthy River Challenge", it is proposed to create a flood storage area incorporating a wetland nature reserve, possibly involving the re-alignment of Salmons Brook. The site is on council owned land, and occupies a former depot. The site could accommodate up to 10,000m (cubic) of flood waters. The use of reeds and other aquatic plant species would serve to improve water quality in Salmons Brook by filtering out sediments and absorbing nutrients. Thus at the same time providing an area of educational interest and recreation by sensitively landscaping the area into an ecologically interesting site with habitat creation. Allowing use by a neighbouring school and as a safe linkage between two neighbouring communities as part of the creation of a green transport link along Salmons Brook from Little Bury Street right through to Edmonton Green. The key benefits include: • Reduction in flood risk to properties in Edmonton Green area downstream
• Enhanced wildlife habitat in the park and along the river corridor
• Creation of a new resource for the local community
• Improved water quality to Salmons Brook
• Provision footpath/cycleway along river would improve green transport links across the borough

Monitoring surveys and results

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A Water Quality monitoring programme is in place with Thames21.

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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 Salmons Brook Area category 10 - 100 km² Area (km2) Maximum altitude category 100 - 200 m Maximum altitude (m) 136136 m <br />0.136 km <br />13,600 cm <br /> Dominant geology Calcareous Ecoregion Great Britain Dominant land cover Suburban Waterbody ID GB106038027960 Other case studies in this subcatchment: Alma Road Rain Gardens, Enfield Town Park Wetlands, Glenbrook Wetlands, Grovelands Park Wetlands, Houndsden Road Rain Gardens, Laymer Road Silt Trap and Recreational Ground, Rewilding Enfield's Urban Rivers, Salmons Brook Flood Alleviation Scheme, Montagu Recreation Ground site, Salmons Brook River Restoration at Laymer Road, Salmons Brook at Grange Park Site Edit site Name Bury Lodge Wetlands WFD water body codes GB106038027960 WFD (national) typology WFD water body name Salmons Brook Pre-project morphology Reference morphology Desired post project morphology Heavily modified water body Yes National/international site designation Local/regional site designations Protected species present No Invasive species present No Species of interest Dominant hydrology Quick run-off, Groundwater Dominant substrate River corridor land use Urban 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) 410 m0.41 km <br />41,000 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 Flood risk management, Poor Water Quality Hydromorphology Substrate conditions Biology Macrophytes Physico-chemical Nutrient concentrations, Biological Oxygen Demand, Heavy Metals, Hydrocarbons Other reasons for the project Landscape enhancement, Recreation Measures Edit Measures Structural measures Bank/bed modifications Floodplain / River corridor Creation of wetland Planform / Channel pattern Other Non-structural measures Management interventions Social measures (incl. engagement) Recreation, Improved public access 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