Case study:Manor Park

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Location: 51° 27' 20.27" N, 0° 0' 10.52" W

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Project overview

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Status	Complete
Project web site
Themes	Flood risk management
Country	England
Main contact forename	Toni
Main contact surname	Scarr
Main contact user ID	User:Ascarr
Contact organisation	Environment Agency
Contact organisation web site	http://www.environment-agency.gov.uk
Partner organisations	QWAG, Thames21, London Borough of Lewisham
Parent multi-site project	Case_study:Quaggy Flood Alleviation Scheme
This is a parent project encompassing the following projects	No

Riverbank Management on the Quaggy, Source: natureconservationlewisham.co.uk

Project summary

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Manor Park was redesigned to tackle the Japanese knotweed on site, rather than dumping it in a hazardous landfill site hundreds of miles away. This invasive species can be a huge problem as it grows very quickly and crowds out all other plants and wildlife if left unmanaged.

Also at Manor Park, wetland areas and wildflower meadows have been created. The EA also updated and improved the play area. And it is now much easier for people to access the river itself.

The channel of the river was improved to restore low flow features.

Monitoring surveys and results

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Image gallery

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just downstream of the park

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 Quaggy Area category 10 - 100 km² Area (km2) Maximum altitude category 100 - 200 m Maximum altitude (m) 135135 m <br />0.135 km <br />13,500 cm <br /> Dominant geology Calcareous Ecoregion Great Britain Dominant land cover Suburban Waterbody ID GB106039023290 Other case studies in this subcatchment: Colfes School, Lidl, Manor House Gardens, Manor House Gardens Gauging Station, Mottingham Farm, Quaggy Flood Alleviation Scheme, Quaggy channel improvements, River Quaggy- Chinbrook meadows, Sutcliffe Park, Sydenham Cottages Nature Reserve Site Edit site Name Manor Park WFD water body codes GB106039023290 WFD (national) typology Calcareous WFD water body name Quaggy 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 Japanese knotweed (Fallopia japonica) Dominant hydrology 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) Project started 2008/01/01 Works started Works completed Project completed 2012/04/28 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 Invasive species Hydromorphology Width & depth variation Biology Physico-chemical Temperature Other reasons for the project Overshaded channel Measures Edit Measures Structural measures Bank/bed modifications Floodplain / River corridor Vegetation management Planform / Channel pattern Other Non-structural measures Management interventions Social measures (incl. engagement) Citizen participation in the restoration project, Awareness raising Other Participation in works 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 plans Additional links and references Edit links and references Link Description Supplementary Information Edit Supplementary Information