Case study:Bourne End Recreation Ground River Enhancement Project

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Location: 51° 34' 31.53" N, 0° 42' 20.83" W

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Project overview

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Status	Complete
Project web site	http://http://www.chilternsaonb.org/news/261/19/River-Wye-Rebourne.html
Themes	Environmental flows and water resources, Fisheries, Habitat and biodiversity, Hydromorphology, Social benefits, Urban
Country	England
Main contact forename	Allen
Main contact surname	Beechey
Main contact user ID	User:ChilternChalkStreams
Contact organisation	Chilterns Chalk Streams Project
Contact organisation web site	http://www.chilternsaonb.org/chalk-streams
Partner organisations	Chiltern Rangers, Revive the Wye, Environment Agency, Wooburn Gree & Bourne End Parish Council, Foundation for Water Research
Parent multi-site project
This is a parent project encompassing the following projects	No

View of completed works, 18th Feb 2016

Project summary

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The purpose of the Project was to enhance river habitat along a 150m stretch of the R. Wye that borders Bourne End Recreation Ground in Buckinghamshire. Through a combination of tree management work and the installation of Woody Habitat structures, the scheme narrowed the previously over-wide channel and increased heterogeneity of flow and habitat. The scheme was designed to directly contribute to the R. Wye achieving Good Ecological Status under the Water Framework Directive. This project was one of three habitat enhancement Projects completed on the river in 2016 supported by the Catchment Partnership Action Fund. The Project was managed by the Chilterns Chalk Streams Project (CCSP) working in partnership with the Chiltern Rangers CIC, Environment Agency, Wooburn Green & Bourne End Parish Council under the banner of Revive the Wye a local community initiative. The work as carried out using a combination of specialist contractors (tree work) and volunteers. The project was funded by the CCSP, the Catchment Partnership Action Fund and the Chiltern Rangers CIC.

Monitoring surveys and results

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Fixed point photography before, during & after the works. Monthly riverfly monitoring - Anglers Riverfly Monitoring Initiative (commenced September 2015)

Lessons learnt

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Image gallery

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View downstream before work started

View upstream before work started

Tree work in progress, January 2016

Volunteers making a start on the first marginal berm

Locally won woody material was used to create berms

Marginal berms were constructed in daylighted sections of the river to ensure colonisaiton of structure by marginal vegetation

Volunteers installing a small flow deflector to create a holding pot for fish

Completed deflector with associated scour pool

Completed work looking upstrea, 18th February 2016

Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district Thames River basin Thame and South Chilterns Subcatchment River name Wye (High Wycombe fire station to Thames) Area category 100 - 1000 km² Area (km2) Maximum altitude category 100 - 200 m Maximum altitude (m) 185185 m <br />0.185 km <br />18,500 cm <br /> Dominant geology Calcareous Ecoregion Great Britain Dominant land cover Suburban Waterbody ID GB106039023880 Site Edit site Name Bourne End Recreation Ground WFD water body codes GB106039023880 WFD (national) typology WFD water body name Wye (High Wycombe fire station to Thames) Pre-project morphology Straightened, Over-widened Reference morphology Chalk stream Desired post project morphology Heavily modified water body No National/international site designation Local/regional site designations Protected species present Yes Invasive species present Yes Species of interest Brown Trout, stone loach, bullhead (Cottus gobio), Otter (Lutra lutra) Dominant hydrology Chalk derived baseflow Dominant substrate Gravel River corridor land use Parklands garden, Urban Average bankfull channel width category 5 - 10 m Average bankfull channel width (m) Average bankfull channel depth category Less than 0.5 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) 150150 m <br />0.15 km <br />15,000 cm <br /> Project started 2015/05/04 Works started 2016/01/19 Works completed 2016/02/18 Project completed 2016/02/24 Total cost category 10 - 50 k€ Total cost (k€) Benefit to cost ratio Funding sources Catchment Partnership Action Fund, Chilterns Chalk Streams Project, Chiltern Rangers Cost for project phases Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname Investigation and design 1 - 10 k€ Chilterns Chalk Streams Project Allen Beechey Stakeholder engagement and communication Less than 1 k€ Revive the Wye Works and works supervision 1 - 10 k€ Chilterns Chalk Streams Project Allen Beechey Post-project management and maintenance Less than 1 k€ Landowner Monitoring Less than 1 k€ Revive the Wye Supplementary funding information Funding contributions: £4,500 Chilterns Chalk Streams Project (incl. officer time) £2,300 Catchment Partnership Action Fund £1,250 Chiltern Rangers CIC (staff time) £150 River Chess Association (1 day at skilled volunteer day rate) £2,250 Volunteer time (30 volunteer days at unskilled day rate) Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Hydromorphology Supporting elements: not-high Biology Fish populations: poor Physico-chemical Phosphate: moderate Other reasons for the project lack of habitat diversity, poor macrophytes, improve local park Measures Edit Measures Structural measures Bank/bed modifications creation of scour pools to provide holding habitat for fish Floodplain / River corridor Tree works to increase light to the river Planform / Channel pattern Channel narrowing & re-meadering via the ntroduction of woody habitat structures Other creation of marginal habitat Non-structural measures Management interventions Social measures (incl. engagement) Community engaged in the delivery of the work 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