Case study:Habitat Enhancments, Reepham Stream, River Blackwater, Norfolk

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Location: 52° 45' 51.25" N, 1° 8' 8.82" E

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Project overview

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Status	Complete
Project web site
Themes	Habitat and biodiversity, Hydromorphology, Water quality
Country	England
Main contact forename	Rory
Main contact surname	Sanderson
Main contact user ID
Contact organisation
Contact organisation web site
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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Installation of woody debris and berms to increase habitat diversity: The Reepham Stream is a tributary of the River Wensum located between Reepham and Cawston in Norfolk. Historic management and land drainage has led to a river channel that is deep in relation to surrounding ground, and contains little variation in habitat. Working with the IDB and NRT, a scheme was designed that would not increase flood risk but would enhance the habitat in stream to help improve its ecological status. This work will compliment the River Wensum Restoration Strategy.

Monitoring surveys and results

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With utilisation of plant materials and resources already on site, minimising mobilisation costs for river restoration; to improve habitat diversity in a heavily modified waterbody; to give greater flow diversity helping to address low dissolved oxygen issues. By addressing a low dissolved oxygen concentrations and mitigation measures needed for heavily modified designation.

Lessons learnt

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Discussions with partners can often identify opportunities for projects giving multiple benefits- continuous work with the IDB on similar restoration schemes.

Image gallery

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Catchment and subcatchment Select a catchment/subcatchment Site Edit site Name WFD water body codes GB105034051120 WFD (national) typology WFD water body name 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) Project started Works started Works completed Project completed 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 5000 - 10000 k€ 60006,000 k€ <br />6,000,000 € <br /> 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 Biology Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications 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