Case study:Aston Clinton River Restoration

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Location: 51° 47' 46.05" N, 0° 43' 29.72" W

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Project overview

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Status	Complete
Project web site
Themes	Flood risk management, Habitat and biodiversity, Social benefits
Country	England
Main contact forename	Jessica
Main contact surname	Dippie
Main contact user ID	User:Jdippie
Contact organisation	Buckinghamshire County Council
Contact organisation web site
Partner organisations	Environment Agency, Aylesbury Vale District Council, Aston Clinton Parish Council, Green Park
Parent multi-site project
This is a parent project encompassing the following projects	No

View of newly created watercourse

Project summary

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During the winter of 2013/14 there was flooding in Aston Clinton Park, partly as a result of a collapsed culvert. The opportunity was taken to create a new stretch of open watercourse which would bypass the collapsed culvert and was set to benefit the environment, reduce flood risk and be more cost efficient than replacing the very old culvert. The project involved many different stakeholders at different levels of community and council involvement including: the Environment Agency; the tenant farmer; Buckinghamshire County Council, Aylesbury Vale District Council and Aston Clinton Parish Council. The stakeholders worked together by sharing and reducing costs, making use of and blending the skills available within the different organisations and community. The project would have been much more expensive and difficult to achieve without the excellent partnership working demonstrated by all stakeholders. All stakeholders were happy with and proud of the project. The newly cut channel will continue to develop and mature and be a source of pleasure to the community and landowners and benefit to the environment.

Works included: 185m stretch of open river installed to bypass the collapsed culvert.

Monitoring surveys and results

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Ecologists in the Environment Team at Buckinghamshire County Council carried out an initial assessment once the project was complete to establish what life was found in the newly created watercourse. They plan to carry this out annually to see how the river develops and establishes over time.

Lessons learnt

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The positive outcome of the river restoration project in Aston Clinton is as a result of great partnership working across all the stakeholders involved. This project really demonstrates that by pooling skills and resources across many organisations and individuals, costs can be reduced and all stakeholders become passionate about achieving an end result that reflects everyone's interests; flood management, biodiversity, ecology, farming and benefitting the community.

Though the project did not run smoothly all the time, this meant that lessons have been learnt regarding project management, especially CDM regulations, early engagement and communication. which can be implemented into future projects and future partnership work.

Image gallery

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Flooding over BCC and ACPC land

freshly created bund and scrapes

View downstream to new culvert and watercourse

Gravels being spread on watercourse bed

Catchment and subcatchment Select a catchment/subcatchment Site Edit site Name Bear 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 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 Edit project background Reach length directly affected (m) Project started 2015/08/01 Works started Works completed Project completed Total cost category Total cost (k€) £36,000"£" is not declared as a valid unit of measurement for this property. 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 Stakeholder engagement and communication Works and works supervision Post-project management and maintenance Monitoring Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Flooding problem, collapsed culvert Hydromorphology Biology New habitat for wildlife and wild flowers Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Deculverting Floodplain / River corridor Planform / Channel pattern Bypass channel, Creation of new channel Other Non-structural measures Management interventions Social measures (incl. engagement) Engagement with a wide range of stakeholders Other Information board erected 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