Case study:Weir removal at Tile Kiln Park

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Location: 51° 36' 56.62" N, 0° 5' 15.56" W

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Project overview

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Status	Complete
Project web site
Themes	Fisheries, Flood risk management, Habitat and biodiversity
Country	England
Main contact forename	Colin
Main contact surname	Street
Main contact user ID
Contact organisation	Environment Agency
Contact organisation web site	http://www.gov.uk/government/organisations/environment-agency
Partner organisations
Parent multi-site project
This is a parent project encompassing the following projects	No

Pymmes Brook looking upstream nearing completion

Project summary

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To remove an obsolete weir on the Pymmes Brook to restore hydro-morphological processes and connectivity of the river corridor. An area of urban deprivation where the Envionment Agency is working with the local Authority to improve the area of Tile Kiln Park in Enfield.

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Pymmes Brook pre-works

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, Parks between A10 and Melville Gardens, Pymmes Brook and new river crossing point, 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) 300 m0.3 km <br />30,000 cm <br /> Project started 2011/01/01 Works started Works completed 2011/01/01 Project completed Total cost category Total cost (k€) Benefit to cost ratio Funding sources Environment Agency Flood and Coastal Risk Management 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 Urbanisation Hydromorphology Continuity for organisms, Continuity for sediments Biology Physico-chemical Other reasons for the project Recreation Measures Edit Measures Structural measures Bank/bed modifications Weir removal 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