Case study:Woughton on the Green bank stabilization

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Location: 52° 2' 8.88" N, 0° 43' 8.22" W

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Project overview

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Status	Complete
Project web site
Themes	Fisheries, Habitat and biodiversity
Country	England
Main contact forename	Rob
Main contact surname	Clapham
Main contact user ID
Contact organisation	Environment Agency
Contact organisation web site
Partner organisations	Milton Keynes Park's Trust
Parent multi-site project
This is a parent project encompassing the following projects	No

Project picture

Project summary

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Dog bathing and signal crayfish activity had significantly weakened a 30-metre section of bank on the Ouzel in Milton Keynes. Significant amounts of bank material were collapsing in to the river, contributing to deterioration of river habitats. Furthermore, there was concern that a well used footpath, adjacent to this section, was at risk of failure in the future if nothing were done to stabilize the bank.

Works were jointly undertaken by the Environment Agency, Park's Trust and Volunteers to improve public safety and to prevent further deterioration of habitats.

Willow logs and brash, were collected by the Park's Trust who were undertaking scheduled tree works in the area. These were secured in the channel using fence posts and steel fencing wire (see photos).

Monitoring surveys and results

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Lessons learnt

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While the project was successful at stabilizing the bank where it was most at risk (i.e. steep and close to public footpath), the bank poaching caused by dogs has just moved to another location. This should be considered in any similar project that seeks to restore bank that is deteriorating as a result of livestock or recreational activity. Consider where dogs or livestock will next enter the river, and consider whether the river at that point will be sensitive to the pressure. Are there any other unstable banks or important habitats such as spawning gravels that may be impacted? Consider whether fencing or formal drinking bathing points may be required.

Image gallery

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Large log bundles at base

First row of willow bundles in place

Bundles and wiring

Catchment and subcatchment Select a catchment/subcatchment Site Edit site Name Woughton on the Green WFD water body codes GB105033037971 WFD (national) typology Low, Medium, Calcareous WFD water body name Ouzel US Caldecote Mill Pre-project morphology Reference morphology Desired post project morphology Heavily modified water body Yes National/international site designation Local/regional site designations Protected species present No Invasive species present Yes Species of interest Dominant hydrology Dominant substrate River corridor land use Average bankfull channel width category 5 - 10 m Average bankfull channel width (m) Average bankfull channel depth category 0.5 - 2 m 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) 3030 m <br />0.03 km <br />3,000 cm <br /> Project started 2014/09/09 Works started 2014/10/09 Works completed 2014/10/10 Project completed Total cost category Less than 1 k€ Total cost (k€) Benefit to cost ratio Funding sources Cost for project phases Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname Investigation and design Less than 1 k€ Environment Agency Rob Clapham Stakeholder engagement and communication Less than 1 k€ Environment Agency Rob Clapham Works and works supervision Less than 1 k€ Environment Agency Rob Clapham Post-project management and maintenance Less than 1 k€ Milton Keynes Park's Trust Rob Rieke Monitoring Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Hydromorphology Substrate conditions Biology Physico-chemical Other reasons for the project Prevent loss of adjacent footpath due to bank collapse Measures Edit Measures Structural measures Bank/bed modifications Bank stabilisation Floodplain / River corridor Planform / Channel pattern 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 Supplementary Information Edit Supplementary Information