Case study:The Dart and Teign River Improvement Project (DTRIP)

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Location: 50° 23' 37.09" N, 3° 37' 26.81" W

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Project overview

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Status	Complete
Project web site
Themes	Economic aspects, Fisheries, Habitat and biodiversity, Social benefits, Water quality
Country	England
Main contact forename	Bruce
Main contact surname	Stockley
Main contact user ID
Contact organisation	Westcountry Rivers Trust
Contact organisation web site	http://www.wrt.org.uk/
Partner organisations	Environment Agency, Natural England, Dartmoor National Park, the Dart Fisheries Association, the Teign Fisheries Association, the Duchy of Cornwall, the Dartmoor Hill Farm Project, Fountains Forestry, Woodland Trust, South West Water, Forestry Commission, University of Plymouth, University College London
Parent multi-site project
This is a parent project encompassing the following projects	No

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Project summary

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DTRIP is a partnership project that will use CRF funds to manage restoration work and to deliver habitat improvements in the Dart and Teign catchment. The partnership, led by the Westcountry Rivers Trust, has been working together for many years, carrying out river restoration and addressing the causes of Wa-ter Framework Directive issues.Through restoration work, the project will address issues including: sediment, which has a direct adverse effect on water quality; diffuse pollution from agriculture and roads, which can impact on river ecology and causes WFD failures; barriers to fish migration, preventing fish from reaching habitat where modeling shows they should be present; interrupted conveyance of river gravels, resulting in reduced spawning habitats for salmonids; habitat loss of wetted and wooded land that has an important role to play in improving water quality & quantity; acidified moorland that creates low pH levels that are detrimental to ecological health of the rivers.

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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 South West River basin River Dart Subcatchment River name DART Area category Area (km2) Maximum altitude category Maximum altitude (m) Dominant geology Ecoregion Great Britain Dominant land cover Waterbody ID GB510804605900 Other case studies in this subcatchment: The South Hams River Improvement Project (SHRImP) Site Edit site Name WFD water body codes GB510804605900 WFD (national) typology WFD water body name DART 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 2012/05/01 Works started Works completed Project completed 2015/03/31 Total cost category 500 - 1000 k€ Total cost (k€) 665665 k€ <br />665,000 € <br /> Benefit to cost ratio Funding sources Defra 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 Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Barriers to fish migration, Drinking water storage and supply Hydromorphology Continuity for organisms, Gravel Augmentation, Continuity of sediment transport Biology Fish Physico-chemical Nutrient concentrations, PH Other reasons for the project Economic, Social Measures Edit Measures Structural measures Bank/bed modifications Marginal planting, Weir removal, Barrier removal, Reduce diffuse pollution, Diversification of in-channel features Floodplain / River corridor Fencing, fenced drinking points Planform / Channel pattern Diversification of in-channel features Other Non-structural measures Management interventions Agricultural business changed its way of working Social measures (incl. engagement) Community involvement Other Monitoring and survey projects 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 - Dart and Teign Additional documents and videos Upload additional documents CRF Project briefing note - Dart and Teign Additional links and references Edit links and references Link Description Supplementary Information Edit Supplementary Information