Case study:Mill Brook, Tattenhall, Cheshire

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Location: 53° 7' 11", -2° 46' 4"
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Project overview

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Status Complete
Project web site http://www.therrc.co.uk/sites/default/files/projects/7_millbrook.pdf
Themes Flood risk management, Habitat and biodiversity, Hydromorphology, Social benefits
Country England
Main contact forename Duncan
Main contact surname Revell
Main contact user ID
Contact organisation Environment Agency
Contact organisation web site http://www.gov.uk/government/organisations/environment-agency
Partner organisations Bolesworth Estate, Tattenhall Wildlife Group
Parent multi-site project
This is a parent project
encompassing the following
projects
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Project picture

Project summary

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This was a habitat creation scheme (Photo 1) which incorporated innovative, Natural Flood Management (NFM) techniques along 230m of Mill Brook, upstream of Tattenhall near Chester (Map 1). This partnership project with the Bolesworth Estate and Tattenhall Wildlife Group created 1.5ha of priority reedbed and wet grassland habitats within a new excavated floodplain area. The project helps attenuate flood peaks and reduces risk downstream in Tattenhall. The North West Regional Flood and Coastal Committee allocated £13,500 of funding to this scheme from the North West 'Slowing the Flow' project. Key facts: 1.5ha of priority habitats created, wider and improved riparian zone and wildlife corridor: reduced diffuse agricultural pollution leading to reduced sediment input and improved water quality: helping to meet Water Framework Directive objectives; increased floodwater storage upstream and flood peak attenuation, which slows the flow of the brook, leading to some flood risk reduction benefits to the downstream village of Tattenhall

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Lessons learnt

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Catchment and subcatchment



Site

Name Mill Brook
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
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Protected species present No
Invasive species present No
Species of interest
Dominant hydrology
Dominant substrate
River corridor land use
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Project background

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Project started
Works started
Works completed
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Total cost (k€) £13.5k
"£" is not declared as a valid unit of measurement for this property.
Benefit to cost ratio
Funding sources North West RFCC, Local levy council tax funding

Cost for project phases

Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname
Investigation and design
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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 habitat creation, Riparian planting
Floodplain / River corridor Reedbed creation, Floodplain creation, Riparian habitat restoration
Planform / Channel pattern
Other
Non-structural measures
Management interventions
Social measures (incl. engagement)
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Monitoring

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Any other monitoring, e.g. social, economic

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Monitoring documents



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Additional links and references

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Supplementary Information

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