Case study:Braid Burn at Inch Park: Difference between revisions

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|Description=River Restoration Centre Case Study
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Revision as of 15:29, 16 August 2012

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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
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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.

Monitoring surveys and results

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Lessons learnt

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Catchment and subcatchment

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Site

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Name Braid Burn
WFD water body codes
WFD (national) typology
WFD water body name
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

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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

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Mitigation of a pressure Flood risk management
Hydromorphology
Biology
Physico-chemical
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Measures

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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

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quality elements
Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative

Biological quality elements

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quality elements
Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative

Physico-chemical quality elements

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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

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Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative


Monitoring documents

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Additional documents and videos

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Additional links and references

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Link Description
http://www.therrc.co.uk/case studies/braid%20burn%20at%20inch%20park.pdf River Restoration Centre Case Study

Supplementary Information

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