Case study:De-culverting Moselle Brook at Lordship Recreation Ground

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Location: 51° 35' 40.76" N, 0° 5' 11.85" W

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Project overview

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Status	Complete
Project web site
Themes	Habitat and biodiversity, Social benefits
Country	England
Main contact forename	Mel
Main contact surname	Challis
Main contact user ID
Contact organisation	Environment Agency
Contact organisation web site	http://www.environment-agency.gov.uk
Partner organisations	Haringey Council, Friends of Lordship recreation ground
Parent multi-site project
This is a parent project encompassing the following projects	No

Looking upstream along de-culverted section of Moselle Brook

Project summary

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Culverted section of Moselle Brook through Lordship Recreation Ground was daylighted. New meandering channel dug with 30 degree banks planted with native species (mostly). New channel planted with flowering rush, sedge and flag. Appearance of new channel looked excellent, however due to the number of misconnections upstream the channel was full of sewage fungus and the water had a strong smell of raw sewage.

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Image gallery

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Lordship rec with new river pathway and native meadow planting

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 Moselle Brook Area category 10 - 100 km² Area (km2) Maximum altitude category 100 - 200 m Maximum altitude (m) 130130 m <br />0.13 km <br />13,000 cm <br /> Dominant geology Calcareous Ecoregion Great Britain Dominant land cover Urban Waterbody ID GB106038027920 Other case studies in this subcatchment: Moselle Brook - Brook Road Site Edit site Name Moselle Brook at Lordship Recreation Ground WFD water body codes GB106038027920 WFD (national) typology WFD water body name Moselle 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 Yes Species of interest Dominant hydrology Quick run-off Dominant substrate Silt River corridor land use Urban, Parklands garden Average bankfull channel width category 2 - 5 m Average bankfull channel width (m) Average bankfull channel depth category 0.5 - 2 m Average bankfull channel depth (m) Mean discharge category 1 - 10 m³/s Mean annual discharge (m3/s) Average channel gradient category 0.001 - 0.01 Average channel gradient Average unit stream power (W/m2) Project background Edit project background Reach length directly affected (m) 300300 m <br />0.3 km <br />30,000 cm <br /> Project started Works started 2011/09/01 Works completed 2012/02/01 Project completed Total cost category more than 10000 k€ Total cost (k€) Benefit to cost ratio Funding sources Help a London Park, Environment Agency 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 culverted watercourse Hydromorphology Channel pattern/planform, Quantity & dynamics of flow, Width & depth variation Biology Macrophytes and/or phytobenthos: Taxonomic composition Physico-chemical Specific non-synthetic pollutants, Oxygen balance, Nutrient concentrations Other reasons for the project Socio-economic Measures Edit Measures Structural measures Bank/bed modifications Culvert replacement/repair, Bank reprofiling Floodplain / River corridor Riparian planting, Sustainable urban drainage ponds (SUDs) Planform / Channel pattern Deculverting Other Non-structural measures Management interventions Social measures (incl. engagement) Improved public access, Information panels for people, Riverside walkway 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 Invertebrates Yes Yes No Yes No Awaiting results 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 River Habitat Survey Yes Yes Yes Yes No Awaiting results Monitoring documents Upload monitoring documents Additional documents and videos Upload additional documents Additional links and references Edit links and references Link Description http://www.lordshiprec.org.uk/ Friends of Lordship Rec Ground Supplementary Information Edit Supplementary Information