Case study:Eddleston water

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Location: 55° 40' 53.00" N, 3° 12' 6.57" W

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Project overview

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Status	In progress
Project web site	http://www.tweedforum.org/projects/current-projects/eddleston
Themes	Flood risk management, Habitat and biodiversity, Hydromorphology
Country	Scotland
Main contact forename	Alex
Main contact surname	Baillie
Main contact user ID
Contact organisation	Tweed Forum
Contact organisation web site	http://www.tweedforum.org/
Partner organisations
Parent multi-site project
This is a parent project encompassing the following projects	No

Eddleston Water catchment restoration, photograph source: Tweed Forum

Project summary

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Historical straightening and changes in land management which aimed to improve agricultural production has created a channel which is currently classified as “poor” by the Water Framework Directive (WFD). The channel also causes occasional flooding in Eddleston and Peebles when rainfall is heavy. Restoration design aims to restore natural physical habitats both in the river corridor and the wide catchment, to achieve “good” WFD status. A secondary aim is to reduce the current level of flood risk.

Restoration strategy measures include: planting of riparian and floodplain forests, breaching embankments to create flood storage areas, re-meandering of the channel, introduction of large woody debris, creating local ponds and wetlands and setting fences back from the banks. Monitoring is in place to establish baseline conditions for rainfall and surface groundwater flows as well as water quality and ecology.

The Eddleston Water project Phase II aimed to deliver on the main two objectives of habitat restoration for improvement of WFD ecological status and improved natural flood risk management (NFM). It has done this by designing and implementing a series of physical interventions in the catchment, with a particular emphasis on both improving river habitats and addressing the sources and pathways of flooding. Areas of woodland have been planted, stretches of historically straightened river returned to a natural meandering course, and each carefully planned, measured and recorded, such that their effectiveness can be monitored over time. Indeed, the Eddleston is now becoming one of the most detailed studies of its type in Europe. The study has taken a catchment approach that will also realise benefits for water quality, fisheries, conservation of biodiversity, landscape and recreation. Early work has also been completed on assessing the delivery of other ecosystem service benefits alongside WFD improvements and NFM interventions

Phase III began in 2013, led by the School of the Environment, while a separate project on River Rehabilitation for the delivery of multiple ecosystem services at the river network scale has just been completed by the Centre in combination with University of Stirling, leading to two publications on a conceptual framework for optimising the outcomes of river restoration, and an earlier one which reviewed the record of restoration projects at the reach and catchment scale across Scotland over the last 20 years.

The project is a partnership initiative led by the Tweed Forum, the Scottish Government, Scottish Environment Protection Agency and the University of Dundee. Other key partners include the British Geological Survey, Scottish Borders Council, the Forestry Commission, Scottish Natural Heritage, the Tweed Foundation, National Farmers’ Union of Scotland, Scottish Land and Estates, and the Environment Agency of England.

Monitoring surveys and results

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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 Solway Tweed River basin Solway Tweed Subcatchment River name Eddleston water Area category Area (km2) 6969 km² <br />6,900 ha <br /> Maximum altitude category 200 - 500 m Maximum altitude (m) Dominant geology Ecoregion Great Britain Dominant land cover Grassland, Woodland Waterbody ID Other case studies in this subcatchment: Tweed Catchment Management Plan Site Edit site Name Eddleston water WFD water body codes WFD (national) typology WFD water body name Pre-project morphology Straightened, Embanked Reference morphology Sinuous Desired post project morphology Heavily modified water body No National/international site designation Local/regional site designations WFD status "poor" Protected species present No Invasive species present No Species of interest Dominant hydrology Quick run-off Dominant substrate River corridor land use Improved/semi-improved grassland/pasture 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 2009 Works started Works completed Project completed 2013/05/01 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 50 - 100 k€ SEPA River Restoration Fund Stakeholder engagement and communication Works and works supervision Post-project management and maintenance Monitoring Supplementary funding information Funded by the SEPA River Restoration Fund Scottish Government awarded funding over three financial years 2010-2011, 2011-2012, 2012-2013 Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Flood risk management Hydromorphology Channel pattern/planform, Quantity & dynamics of flow Biology Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications meandering channel, Introducing large woody debris, creation of a new floodplain parallel to the river, embankment renaturalization Floodplain / River corridor Connection to wider floodplain 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 information leaflet Additional links and references Edit links and references Link Description http://www.tweedforum.org/projects/current-projects/eddleston leaflet.pdf The Eddleston Water project: Restoring natural habitat and reducing flood risk http://www.tweedforum.org/projects/current-projects/Poster Katya Perez Chris Spray.pdf Assessment of stream course restoration and potential land use modification on flood risk reduction and other ecosystem services Supplementary Information Edit Supplementary Information