Case study:Rainham Marshes

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Location: 51° 30' 27.07" N, 0° 11' 4.28" E

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Project overview

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Status	Planned
Project web site
Themes	Habitat and biodiversity, Social benefits
Country	England
Main contact forename	Jennifer
Main contact surname	Norman
Main contact user ID
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Parent multi-site project
This is a parent project encompassing the following projects	No

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Project summary

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Creation of junction nodes for Water Voles and re-wetting sections of the ditch network within the SSSI. Survey of Water Vole population on the site. The Inner Thames Marshes is a stronghold for Water Vole. The condition of the SSSI is poor and is currently unmanaged. The ditch network is also unmanged and some ditches are becoming silted up and dry.

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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 Roding, Beam and Ingrebourne Subcatchment River name Southall Sewer and Runningwater Brook (Ingrebourne) Area category 10 - 100 km² Area (km2) Maximum altitude category Less than 100 m Maximum altitude (m) 3939 m <br />0.039 km <br />3,900 cm <br /> Dominant geology Calcareous Ecoregion Great Britain Dominant land cover Arable and Horticulture Waterbody ID GB106037028090 Other case studies in this subcatchment: Ferry Lane North drainage realignment Site Edit site Name WFD water body codes GB106037028090 WFD (national) typology WFD water body name Southall Sewer and Runningwater Brook (Ingrebourne) 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 2010/01/01 Works started Works completed Project completed Total cost category 50 - 100 k€ Total cost (k€) Benefit to cost ratio Funding sources £42k secured from NEAS led EA tidal sluice upgrade project, mitigation money. 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 Hydromorphology Quantity & dynamics of flow Biology Vertebrates Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Floodplain / River corridor Habitat enhancement Planform / Channel pattern Other Non-structural measures Management interventions Social measures (incl. engagement) Other Survey work, Wildlife surveys 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