Case study:Barnes Common improvements

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Location: 51° 28' 15", -0° 14' 41"
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Project overview

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Status Complete
Project web site
Themes Fisheries, Habitat and biodiversity, Hydromorphology, Urban
Country England
Main contact forename Dave
Main contact surname Webb
Main contact user ID
Contact organisation Environment Agency
Contact organisation web site http://www.gov.uk/government/organisations/environment-agency
Partner organisations Friends of Barnes Common, London Borough of Richmond upon Thames
Parent multi-site project
This is a parent project
encompassing the following
projects
No
Reed bed - May 2011

Project summary

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To improve the riparian through with an improved mowing regime
Plug planting of marginal species
Selective tree management to allow more light into the channel
Potential to dig a new meander
Enlarge the off-line reedbed to create a backwater for spawning fish and habitat value
Put flow deflectors in the channel to improve in stream processes

The Beverley Brook flows through Barnes Common and has artificially low flows, little in channel habitat and no riparian buffer zones. An off-reed bed has been dug which was successful.

Monitoring surveys and results

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Lessons learnt

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File:Barnes common enhancements Dec 2011.pdf

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Catchment and subcatchment

Catchment

River basin district Thames
River basin London

Subcatchment

River name Beverley Brook (Motspur Park to Thames) and Pyl Brook at West Barnes
Area category 1000 - 10000 km²
Area (km2)
Maximum altitude category 100 - 200 m
Maximum altitude (m) 172
172 m
0.172 km
17,200 cm
Dominant geology Calcareous
Ecoregion Great Britain
Dominant land cover Suburban
Waterbody ID GB106039022850



Other case studies in this subcatchment: Anton Crescent Wetlands Regeneration, Ashlone Wharf FCRM scheme, Barn Elms Sports Ground, Barn Elms Wetland Centre, South West London, Barnes Common, Beverley Brook Flow control structures, Beverley Brook d/s of Rock’s Lane, Beverley Park, Cuddington Park, Horne Way Weir... further results


Site

Name
WFD water body codes GB106039022850
WFD (national) typology
WFD water body name Beverley Brook (Motspur Park to Thames) and Pyl Brook at West Barnes
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

Reach length directly affected (m) 300 m
0.3 km
30,000 cm
Project started
Works started
Works completed
Project completed 2011/12/20
Total cost category
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
Stakeholder engagement and communication
Works and works supervision
Post-project management and maintenance
Monitoring



Reasons for river restoration

Mitigation of a pressure
Hydromorphology
Biology little in channel habitat, no riparian buffer zones
Physico-chemical
Other reasons for the project


Measures

Structural measures
Bank/bed modifications
Floodplain / River corridor Tree management, Riparian planting, mowing regime
Planform / Channel pattern Reedbed creation, Flow deflectors
Other
Non-structural measures
Management interventions
Social measures (incl. engagement)
Other


Monitoring

Hydromorphological quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative

Biological quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative

Physico-chemical quality elements

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Any other monitoring, e.g. social, economic

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative


Monitoring documents



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Supplementary Information

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