Case study:River Wid restoration scheme

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Location: 51° 39' 48.95" N, 0° 24' 3.76" E

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Project overview

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

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Project summary

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The river restoration has introduced habitat features which will lead to the restoration of the hydromorphology of the WFD watercourse. Priority species this project may benefit include water voles and eels.

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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 Anglian River basin Combined Essex Subcatchment River name Wid (Ingatestone Hall - Margaretting Hall) Area category 10 - 100 km² Area (km2) Maximum altitude category Less than 100 m Maximum altitude (m) 9696 m <br />0.096 km <br />9,600 cm <br /> Dominant geology Calcareous Ecoregion Great Britain Dominant land cover Arable and Horticulture Waterbody ID GB105037028690 Site Edit site Name River Wid WFD water body codes GB105037028690 WFD (national) typology Low, Small, Calcareous WFD water body name Wid Pre-project morphology Sinuous Reference morphology Sinuous 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 Groundwater Dominant substrate Gravel, Clay River corridor land use Intensive agriculture (arable) Average bankfull channel width category Average bankfull channel width (m) 88 m <br />0.008 km <br />800 cm <br /> Average bankfull channel depth category Average bankfull channel depth (m) 1.51.5 m <br />0.0015 km <br />150 cm <br /> 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) 14001,400 m <br />1.4 km <br />140,000 cm <br /> Project started 2012/09/01 Works started 2012/10/01 Works completed 2012/11/01 Project completed 2013/12/01 Total cost category 10 - 50 k€ Total cost (k€) Benefit to cost ratio Funding sources 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 Flood risk management Hydromorphology Continuity of sediment transport, Channel pattern/planform, Width & depth variation Biology Fish, Invertebrates, Macrophytes Physico-chemical Nutrient concentrations, dissolve oxygen, pH Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Adding sinuosity Floodplain / River corridor Floodplain reconnection Planform / Channel pattern Channel narrowing 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