Case study:Braid Burn at Inch Park
Project overview
Status | Complete |
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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 |
Project summary
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.
Monitoring surveys and results
Lessons learnt
Catchment and subcatchment
Edit the catchment and subcatchment details
(affects all case studies in this subcatchment)
Catchment
River basin district | Scotland RBD |
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River basin | Forth |
Subcatchment
River name | Braid Burn |
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Area category | |
Area (km2) | |
Maximum altitude category | |
Maximum altitude (m) | |
Dominant geology | Siliceous |
Ecoregion | Great Britain |
Dominant land cover | |
Waterbody ID |
Site
Name | Braid Burn |
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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
Reach length directly affected (m) | 320m0.32 km <br />32,000 cm <br /> |
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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 |
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Investigation and design | |||||
Stakeholder engagement and communication | |||||
Works and works supervision | |||||
Post-project management and maintenance | |||||
Monitoring |
Reasons for river restoration
Mitigation of a pressure | Flood risk management |
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Hydromorphology | |
Biology | |
Physico-chemical | |
Other reasons for the project |
Measures
Structural measures
| |
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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
Element | When monitored | Type of monitoring | Control site used | Result | ||
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Before measures | After measures | Qualitative | Quantitative |
Biological quality elements
Element | When monitored | Type of monitoring | Control site used | Result | ||
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Before measures | After measures | Qualitative | Quantitative |
Physico-chemical quality elements
Element | When monitored | Type of monitoring | Control site used | Result | ||
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Before measures | After measures | Qualitative | Quantitative |
Any other monitoring, e.g. social, economic
Element | When monitored | Type of monitoring | Control site used | Result | ||
---|---|---|---|---|---|---|
Before measures | After measures | Qualitative | Quantitative |
Monitoring documents
Image gallery
Additional documents and videos
Additional links and references
Link | Description |
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http://www.therrc.co.uk/case studies/braid%20burn%20at%20inch%20park.pdf | River Restoration Centre Case Study |
Supplementary Information
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