Case study:Parks between A10 and Melville Gardens

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Location: 51° 36' 47.35" N, 0° 6' 4.45" W

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Project overview

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Status	Planned
Project web site
Themes	Economic aspects, 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
Partner organisations	Community Groups
Parent multi-site project
This is a parent project encompassing the following projects	No

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Project summary

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Community groups to undertake removal of overshading trees. EA to sensitively dredge the over silted channel and remove impounding Penstock weir to return to a natural geomorphological features. The area has significant community interest with a number of open spaces and footpaths by the river. The river is broadly natural but is in relatively poor state. River is overshaded in places and a weir with penstock sluice impounds the bottom section of the river as it goes under the A10.

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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 Pymmes Brook (upper channel with Muswell St & Bounds Grn Brk) Area category 10 - 100 km² Area (km2) Maximum altitude category 100 - 200 m Maximum altitude (m) 131131 m <br />0.131 km <br />13,100 cm <br /> Dominant geology Calcareous Ecoregion Great Britain Dominant land cover Suburban Waterbody ID GB106038027940 Other case studies in this subcatchment: Arnos Park - Pymmes Brook, Friary Park, Friern Barnet Former Sewage Works, Merdian Water development site, Pymmes Brook and new river crossing point, Weir removal at Tile Kiln Park, Wilmer Way School Playing Field Site Edit site Name WFD water body codes GB106038027940 WFD (national) typology WFD water body name Pymmes Brook (upper channel with Muswell St & Bounds Grn Brk) 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) 3001000 m3,001 km <br />300,100,000 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 Environment Agency, London Borough of Enfield, Community groups 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 Continuity for sediments, Substrate conditions Biology Physico-chemical Other reasons for the project Community demand Measures Edit Measures Structural measures Bank/bed modifications Floodplain / River corridor Tree management 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