Case study:Nine Chalk Rivers Project

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Location: 52° 52' 56.61" N, 0° 46' 57.99" 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	Fisheries, Flood risk management, 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	private landowners, Environment Agency, Natural England, Norfolk Wildlife Trust, The University of East Anglia, RSPB, The Wild Trout Trust, The River Glaven Conservation Group, Norfolk Coast AONB
This is a parent project encompassing the following projects	Nine Chalk Rivers Project - Babingley Catchment, Nine Chalk Rivers Project - Burn Catchment, Nine Chalk Rivers Project - Gaywood Catchment, Nine Chalk Rivers Project - Glaven Catchment, Nine Chalk Rivers Project - Heacham Catchment, Nine Chalk Rivers Project - Hun Catchment, Nine Chalk Rivers Project - Ingol Catchment, Nine Chalk Rivers Project - Mun Catchment, Nine Chalk Rivers Project - Stiffkey Catchment

The nine rivers

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 re-connection, 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.

Background to the project The Norfolk River's Trust, The Norfolk Coast Partnership and Norfolk County Council put in a project bid to the Environment Agency Catchment Restoration Fund to look at improving 9 of Norfolk's chalk rivers. £1.3M was awarded towards the end of 2012. This is one of the largest of the awarded Environment Agency projects in the Country. The project involves practical on the ground river restoration work so some physical changes to the rivers will be seen relatively quickly.

The partnership Steering Group (Norfolk Coast Partnership, Norfolk Rivers Trust, Norfolk County Council, Environment Agency and the Norfolk Wildlife Trust) along with statutory organisations and local communities will guide the Nine Chalk Rivers Project.

The rivers include the Glaven, Stiffkey, Babingley, Gaywood, Hun, Mun, Ingol, Heacham and Burn. To begin with work will start on the Glaven, Stiffkey, Babingley and Gaywood and then it is hoped that further funding can be attained for the other 5 smaller rivers.

Description of Works

• Restoring hydrology – re-creating meanders in straightened rivers improves sediment transport and habitat diversity for fish and invertebrates, while re-connecting rivers to floodplains buffers flows, improves floodplain habitats for plants, insects and birds, prevents siltation and improves water quality.
• Silt trapping – trapping silt close to its source prevents it from smothering riverine habitats and allows farmers to re-use nutrient rich top-soils.
• Community Involvement – Norfolk Rivers Trust is involving communities in catchment management planning and project delivery through local conservation groups, community councils and stakeholder workshops.

How you can help The long term aim is to create local groups that will take over management when the grant cash runs out. Local community support is crucial to the understanding of these rivers, therefore we want your views of the rivers. Where and what are the problems? What would make your local river function better? What would you like to see happen and how would you like to be involved?

Find out more You can find regular updates as to what is happening on Twitter @9ChalkRivers or if you want to get involved you can contact the Community Involvement Officer by email gemma.clark@norfolk.gov.uk by telephone on 01553 778024 or by mobile on 07768 031629 your ideas and thoughts are really valued so please do not hesitate to contact us.

Monitoring surveys and results

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What will success look like? Delivery of these projects will represent a significant step in the restoration of these nine unique rivers and will contribute towards improvements in Water Framework Directive classifications. Enabling the rivers to function naturally will improve habitat for plants and animals both in the river and on the floodplain, including trout, eels, native crayfish, water-voles, wet-meadow flora such as marsh marigold, and birds such as lapwings, snipe and avocet.

Lessons learnt

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Image gallery

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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 North Norfolk Subcatchment River name Stiffkey Area category 10 - 100 km² Area (km2) Maximum altitude category 100 - 200 m Maximum altitude (m) 114114 m <br />0.114 km <br />11,400 cm <br /> Dominant geology Calcareous Ecoregion Great Britain Dominant land cover Arable and Horticulture Waterbody ID GB105034055840 Other case studies in this subcatchment: Nine Chalk Rivers Project - Stiffkey Catchment Site Edit site Name North norfolk WFD water body codes WFD (national) typology WFD water body name Glaven, Stiffkey, Gaywood, Babingley, Mun, Burn, Hun, Heacham, Ingol 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 Intensive agriculture (arable) 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 2012/09/03 Works started Works completed Project completed 2015/04/01 Total cost category 1000 - 5000 k€ Total cost (k€) 13001,300 k€ <br />1,300,000 € <br /> Benefit to cost ratio Funding sources Catchment Restoration Fund 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 Supplementary funding information there will also be match funding 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 Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Construction of meanders Floodplain / River corridor Connection to wider floodplain, silt and nutrient trapping 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 project briefing note Additional links and references Edit links and references Link Description Supplementary Information Edit Supplementary Information