Case study:Anton Crescent Wetlands Regeneration

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Location: 51° 22' 23", -0° 12' 9"
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Project overview

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Status Complete
Project web site
Themes Habitat and biodiversity, Social benefits, Urban
Country England
Main contact forename Heather
Main contact surname Lewis
Main contact user ID
Contact organisation Environment Agency
Contact organisation web site
Partner organisations Sutton Ecology Centre, London Borough of Sutton, Natural England
Parent multi-site project
This is a parent project
encompassing the following
projects
No
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Project summary

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Although initially designed as a flood storage area to aid sustainable drainage systems, this area of land provides rare wetland habitat within an urban London setting. The wetland includes areas of reedbed which is scarce and under threat within the UK, and listed as a priority habitat within the UK’s Biodiversity Action Plan. The land had previously been used for educational purposes by the adjacent school, but on-site management has declined resulting in a lack of school usage and reduced habitat value. Key habitats that would benefit from restoration include:

  • Willow carr;
  • Reed bed;
  • Open water / marginal communities.

The project has provided much needed management to the site to restore the wetland habitats and again provide a safe educational resource for local schools. The project has developed an ongoing site management plan to ensure the achieved improvements are maintained.

The key partner in this project, the London Borough of Sutton, are to propose the site for designation as a Local Nature Reserve. Project objectives: Improve the habitat and community value of Anton Crescent Wetland; To produce a long term management plan for site; To present site for designation as Local Nature Reserve under the National Parks and Access to the Countryside Act 1949.

Key activites: Manage reedbed and maintain are of open water; Manage willow trees for wildlife and maintain flood storage capacity; Improve structure and biodiversity of meadow; Increase public awareness and enjoyment of site, generating local interest and provide educational resource.

Monitoring surveys and results

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Lessons learnt

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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: Ashlone Wharf FCRM scheme, Barn Elms Sports Ground, Barn Elms Wetland Centre, South West London, Barnes Common, Barnes Common improvements, Beverley Brook Flow control structures, Beverley Brook d/s of Rock’s Lane, Beverley Park, Cuddington Park, Horne Way Weir... further results


Site

Name Anton Crescent Wetlands
WFD water body codes GB106039022850
WFD (national) typology Calcareous
WFD water body name Pyl Brook
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 Urban
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)
Project started
Works started
Works completed
Project completed
Total cost category 10 - 50 k€
Total cost (k€) 12
12 k€
12,000 €
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

Supplementary funding information

This funding was matched by the London Borough of Sutton, through the provision of in-kind labour. London Borough of Sutton provided on-site project management and undertook all works required to implement the restoration work.



Reasons for river restoration

Mitigation of a pressure
Hydromorphology
Biology
Physico-chemical
Other reasons for the project


Measures

Structural measures
Bank/bed modifications
Floodplain / River corridor
Planform / Channel pattern
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

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

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



Additional documents and videos


Additional links and references

Link Description
http://www.sutton.gov.uk/index.aspx?articleid=1820 London Borough of Sutton - Anton Crescent Wetland local nature reserve
http://http://www.lnr.naturalengland.org.uk/Special/lnr/lnr details.asp?ID=1599 Natural England - Anton Crescent Wetland local nature reserve

Supplementary Information

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