Case study:Braid Burn at Inch Park

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Location: 55° 55' 46.46" N, 3° 9' 13.24" W

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Project overview

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Status	Complete
Project web site
Themes	Flood risk management, Habitat and biodiversity
Country	Scotland
Main contact forename	Nick
Main contact surname	Elbourne
Main contact user ID
Contact organisation	River Restoration Centre
Contact organisation web site	http://www.therrc.co.uk
Partner organisations
Parent multi-site project
This is a parent project encompassing the following projects	No

Braid Burn flooding, Inch Park, March 2010

Project summary

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The artificial burn corridor had little character, with very poor habitat possessing low diversity in species. The restoration project was implemented to improve the environment on the burn corridor and reduce the risk of flooding (to a 1 in 200 year event). During a 2010 flood event the project proved to successfully limit flood waters to designated flood areas.

The works comprised a two stage flood defence scheme with the first stage being a low bund to withhold a 1 in 20 year event. The second stage works involved the construction of clay embankments and sheet pile and concrete walls clad in stone recovered from the park’s boundary wall creating 190,000m³ of flood reservoir storage.

Environmental improvements included lowering artificially raised banks and the concrete channel was replaced with sinuous meanders to restore the watercourse. Wetland areas were created to provide habitat variety.

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Image gallery

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Before works - April 2006

Opening new meanders - Jan 2009

Completed channel - Feb 2009

Two years post restoration - May 2011

Wetland area - May 2011

Wetland area in flood - March 2010

Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district Scotland RBD River basin Forth Subcatchment River name Braid Burn Area category Area (km2) Maximum altitude category Maximum altitude (m) Dominant geology Siliceous Ecoregion Great Britain Dominant land cover Waterbody ID Site Edit site Name Braid Burn WFD water body codes 3500 WFD (national) typology Low, Small, Calcareous WFD water body name Braid Burn (Upstream Dreghorn Barracks to Portobello) Pre-project morphology Artificial channel, Straightened Reference morphology Sinuous Desired post project morphology Heavily modified water body Yes National/international site designation Local/regional site designations Urban Wildlife Site Protected species present No Invasive species present Yes Species of interest Otter (Lutra lutra) Dominant hydrology Dominant substrate Gravel River corridor land use Urban, Parkland 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) 320m0.32 km <br />32,000 cm <br /> Project started 2009/01/01 Works started Works completed Project completed 2012/08/01 Total cost category more than 10000 k€ Total cost (k€) 40000 k€40,000,000 € <br /> Benefit to cost ratio Funding sources 40000 k€ as part of a wider regeneration project 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 Flood risk management Hydromorphology Biology Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Embankment creation Floodplain / River corridor Floodplain reconnection Planform / Channel pattern Creation of sinuosity 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 http://www.therrc.co.uk/case studies/braid%20burn%20at%20inch%20park.pdf River Restoration Centre Case Study http://www.therrc.co.uk/MOT/Final Versions (Secure)/1.10 Braid Burn.pdf River Restoration Centre Manual of Technicals detailed technical case study Supplementary Information Edit Supplementary Information