Case study:Nine Chalk Rivers Project - Gaywood Catchment

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Location: 52° 45' 29.25" N, 0° 24' 22.57" E

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Project overview

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Status	In progress
Project web site	http://www.norfolkriverstrust.org/p/river-stiffkey-restoration-plan.html
Themes	Habitat and biodiversity, Water quality
Country	England
Main contact forename	Jonah
Main contact surname	Tosney
Main contact user ID
Contact organisation	Norfolk Rivers Trust
Contact organisation web site	http://www.norfolkriverstrust.org/
Partner organisations	Environment Agency, Natural England, The University of East Anglia, Norfolk Wildlife Trust, Norfolk Coast AONB, RSPB, The Wild Trout Trust, The River Glaven Conservation Group
Parent multi-site project	Case_study:Nine Chalk Rivers Project
This is a parent project encompassing the following projects	No

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Project summary

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The Nine Chalk Rivers project is a series of 16 restoration projects spread across nine unique chalk rivers flowing onto Norfolk’s north coast. The rivers face similar problems, most notably canalisation, disconnection from the floodplain, siltation, low flows and diffuse pollution. The projects are diverse, and include re-meandering, floodplain reconnection, silt and nutrient trapping and catchment management planning. Each project will improve the ecological health of the rivers and floodplains. To deliver these projects, Norfolk Rivers Trust is working with landowners across Norfolk as well as the Environment Agency, Natural England, The University of East Anglia, Norfolk Wildlife Trust, Norfolk Coast AONB, RSPB, The Wild Trout Trust, The River Glaven Conservation Group and various other partners.

Monitoring surveys and results

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The outcomes of the project are the following:improving water quality and river and floodplain habitats.

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The location of River Gaywood

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 North West Norfolk Subcatchment River name Relief Channel Area category 10 - 100 km² Area (km2) Maximum altitude category Less than 100 m Maximum altitude (m) 5757 m <br />0.057 km <br />5,700 cm <br /> Dominant geology Siliceous Ecoregion Great Britain Dominant land cover Arable and Horticulture Waterbody ID GB105033047660 Site Edit site Name Gaywood River WFD water body codes GB105033047680 WFD (national) typology WFD water body name Gaywood River Pre-project morphology Reference morphology Actively meandering 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 2012/07/01 Works started Works completed Project completed 2015/03/01 Total cost category Total cost (k€) Benefit to cost ratio Funding sources Catchment Restoration Funds 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 Canalisation, disconnection from the floodplain, siltation, low flows and diffuse pollution Hydromorphology Biology Fish, Macrophytes, Invertebrates Physico-chemical Nutrient concentrations Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Floodplain / River corridor Reconnection to the riparian zone, remeandering Planform / Channel pattern Other Non-structural measures Management interventions Social measures (incl. engagement) Other Community Involvement – Norfolk Rivers Trust is involving communities in catchment management planning and project delivery through local conservation groups, community councils and stakeholder workshops. 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 RRC Monitoring table - Norfolk Coast Rivers Additional documents and videos Upload additional documents briefing note Additional links and references Edit links and references Link Description Supplementary Information Edit Supplementary Information