Case study:Snettisham River Ingol Woody Habitat Project

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Location: 52° 52' 15.00" N, 0° 29' 22.82" E

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Project overview

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Status	In progress
Project web site	http://www.norfolkriverstrust.org/trust_project/river-ingol/
Themes	Habitat and biodiversity, Hydromorphology
Country	England
Main contact forename	the
Main contact surname	RRC
Main contact user ID	User:JoshRRC
Contact organisation	Norfolk Rivers Trust
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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It is part of the Norfolk Rivers Trust’s mission to gain the active participation of the community. Stakeholders help us to set objectives, keep us informed about issues on the ground such as pollution and actively volunteer to make many more worthwhile projects possible. We started getting to know the River Ingol from November 2013.

An opportunity to restore a section of the River Ingol by improving habitat has already been identified and carried out close to Snettisham, and this project was be greatly aided by the help of volunteers. We would also like to thank the Environment Agency who managed to substantially support this project with man-power, despite the cuts which have greatly depleted their ability to carry out the excellent work which they do. Norfolk Rivers Trust are grateful for the help which landowners have given to make this project happen, and hope that more projects will be initiated in the near future.

Whilst the first stage of this project was completed in June 2014, we have gained permission from the Environment Agency to continue this project in the Autumn. There were 2 objectives of this project. The first was to enhance the wildlife value for groups such as fish, aquatic birds and insects. A family of ducks has already been seen sheltering in the extra cover! Dace spawning relies on this stretch of the river and will also be enhanced by this project. Woody material in the river enhances spawning because it creates a variety of fast and slow flows which are useful of use for different life stages of fish. In particular, narrowing an over-widened stream such as the Ingol, in places, allows gravels to be kept clear by water flow and this means that fish eggs will have access to well-oxygenated water and will not be smothered by silt. The second aspect of the project was to use alder faggots to protect banks which were eroding due to unnatural causes (variously unnaturally high flows and water plant removal from banks).

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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 West Norfolk Subcatchment River name Ingol Area category 10 - 100 km² Area (km2) Maximum altitude category Less than 100 m Maximum altitude (m) 100100 m <br />0.1 km <br />10,000 cm <br /> Dominant geology Calcareous Ecoregion Great Britain Dominant land cover Arable and Horticulture Waterbody ID GB105033053470 Site Edit site Name WFD water body codes WFD (national) typology WFD water body name Pre-project morphology Reference morphology Desired post project morphology Heavily modified water body National/international site designation Local/regional site designations Protected species present Invasive species present 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 2014/06/12 Works started Works completed Project completed 2014/06/12 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 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