Case study:Lustrum Beck Flood Alleviation Scheme: Phase 2

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Location: 54° 32' 34.27" N, 1° 23' 4.67" W
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Project overview

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Status In progress
Project web site http://www.therrc.co.uk/sites/default/files/projects/21_lustrum.pdf
Themes Flood risk management, Habitat and biodiversity, Hydromorphology, Land use management - agriculture, Land use management - forestry
Country England
Main contact forename Ted
Main contact surname Thomas
Main contact user ID
Contact organisation Environment Agency
Contact organisation web site http://www.gov.uk/government/organisations/environment-agency
Partner organisations Stockton-on-Tees Borough Council, Forestry Commission, Newcastle University
Parent multi-site project
This is a parent project
encompassing the following
projects
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Project summary

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The Lustrum Beck catchment (Map 1) is located in Stockton-on-Tees and is a tributary of the Tees. It has been identified through an ISIS-TUFLOW model that over 150 properties are at risk of flooding in the catchment within 2 main areas: Oxbridge and Browns Bridge. For these sites, the Lustrum Beck Flood Alleviation Scheme (FAS) has been split into 2 phases. Phase 1 is well underway and consists of constructing more traditional flood defences in the urban area of the catchment. Phase 2 is currently in the development stage and will involve storing water at a range of scales in the upstream catchment area using natural processes to attenuate water. This case study focuses on Phase 2 in the Lustrum Beck catchment and how natural processes are being incorporated into the scheme to reduce downstream risk. The model used identified that a total storage area of around 100,000m³ of storage within the local catchment area could reduce the discharge from the 1 in 100 year return period by 11.5%. This would reduce the peak flow of the 1 in 100 year event to less than 1 in 75 year event. The Lustrum Beck project is the first flood risk management scheme to develop a business case which includes the use of Natural Flood Management (NFM) to successfully attract Flood Defence Grant in Aid (FDGiA) funding to reduce flood risk.

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Catchment and subcatchment



Site

Name Lustrum Beck
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Heavily modified water body No
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Protected species present No
Invasive species present No
Species of interest
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Project background

Reach length directly affected (m)
Project started 2014
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Total cost (k€) £4m"£" is not declared as a valid unit of measurement for this property.
Benefit to cost ratio
Funding sources Flood and Coastal Risk Management, Environment Agency Grant in Aid, Local levy funding, Tees Rivers Trust

Cost for project phases

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Reasons for river restoration

Mitigation of a pressure Flood risk management
Hydromorphology
Biology
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Measures

Structural measures
Bank/bed modifications
Floodplain / River corridor Offline storage areas
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Monitoring

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Supplementary Information

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