Case study:Bury Lodge Wetlands: Difference between revisions

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{{Project overview
{{Project overview
|Status=Planned
|Status=In progress
|Themes=Environmental flows and water resources, Flood risk management, Habitat and biodiversity, Monitoring, Social benefits, Water quality, Urban
|Themes=Environmental flows and water resources, Flood risk management, Habitat and biodiversity, Monitoring, Social benefits, Water quality, Urban
|Country=England
|Country=England
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|Name of parent multi-site project=Case_study:Rewilding Enfield's Urban Rivers
|Name of parent multi-site project=Case_study:Rewilding Enfield's Urban Rivers
|Multi-site=No
|Multi-site=No
|Project summary=It is proposed to create a flood storage area incorporating a wetland nature reserve, possibly involving the re-alignment of Salmons Brook.  The site could accommodate up to 10,000m (cubic) of flood waters.  The use of reeds and other aquatic plant species would serve to improve water quality in Salmons Brook by filtering out sediments and absorbing nutrients. Thus at the same time providing an area of educational interest and recreation by sensitively landscaping the area into an ecologically interesting site with habitat creation. Allowing use by a neighbouring school and as a safe linkage between two neighbouring communities as part of the creation of a green transport link along Salmons Brook from Little Bury Street right through to Edmonton Green. • Reduction in flood risk to properties in Edmonton Green area downstream<br>• Enhanced wildlife habitat in the park and along the river corridor<br>• Creation of a new resource for the local community<br>• Improved water quality to Salmons Brook<br>• Provision footpath/cycleway along river would improve green transport links across the borough
|Project summary=As part of the Thames21 project "the Salmons Brook Healthy River Challenge", it is proposed to create a flood storage area incorporating a wetland nature reserve, possibly involving the re-alignment of Salmons Brook.  The site could accommodate up to 10,000m (cubic) of flood waters.  The use of reeds and other aquatic plant species would serve to improve water quality in Salmons Brook by filtering out sediments and absorbing nutrients. Thus at the same time providing an area of educational interest and recreation by sensitively landscaping the area into an ecologically interesting site with habitat creation. Allowing use by a neighbouring school and as a safe linkage between two neighbouring communities as part of the creation of a green transport link along Salmons Brook from Little Bury Street right through to Edmonton Green. The key benefits include: • Reduction in flood risk to properties in Edmonton Green area downstream<br>• Enhanced wildlife habitat in the park and along the river corridor<br>• Creation of a new resource for the local community<br>• Improved water quality to Salmons Brook<br>• Provision footpath/cycleway along river would improve green transport links across the borough
|Monitoring surveys and results=A Water Quality monitoring programme is in place with Thames21.
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Revision as of 17:44, 16 February 2016

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Location: 51° 37' 56.14" N, 0° 4' 30.65" W
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Project overview

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Status In progress
Project web site
Themes Environmental flows and water resources, Flood risk management, Habitat and biodiversity, Monitoring, Social benefits, Water quality, Urban
Country England
Main contact forename Ian
Main contact surname Russell
Main contact user ID
Contact organisation
Contact organisation web site
Partner organisations London Borough of Enfield, Thames 21, Environment Agency
Parent multi-site project

Case_study:Rewilding Enfield's Urban Rivers

This is a parent project
encompassing the following
projects
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Project summary

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As part of the Thames21 project "the Salmons Brook Healthy River Challenge", it is proposed to create a flood storage area incorporating a wetland nature reserve, possibly involving the re-alignment of Salmons Brook. The site could accommodate up to 10,000m (cubic) of flood waters. The use of reeds and other aquatic plant species would serve to improve water quality in Salmons Brook by filtering out sediments and absorbing nutrients. Thus at the same time providing an area of educational interest and recreation by sensitively landscaping the area into an ecologically interesting site with habitat creation. Allowing use by a neighbouring school and as a safe linkage between two neighbouring communities as part of the creation of a green transport link along Salmons Brook from Little Bury Street right through to Edmonton Green. The key benefits include: • Reduction in flood risk to properties in Edmonton Green area downstream
• Enhanced wildlife habitat in the park and along the river corridor
• Creation of a new resource for the local community
• Improved water quality to Salmons Brook
• Provision footpath/cycleway along river would improve green transport links across the borough

Monitoring surveys and results

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A Water Quality monitoring programme is in place with Thames21.

Lessons learnt

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Catchment and subcatchment

Catchment

River basin district Thames
River basin London

Subcatchment

River name Salmons Brook
Area category 10 - 100 km²
Area (km2)
Maximum altitude category 100 - 200 m
Maximum altitude (m) 136136 m <br />0.136 km <br />13,600 cm <br />
Dominant geology Calcareous
Ecoregion Great Britain
Dominant land cover Suburban
Waterbody ID GB106038027960



Other case studies in this subcatchment: Alma Road Rain Gardens, Enfield Town Park Wetlands, Glenbrook Wetlands, Grovelands Park Wetlands, Houndsden Road Rain Gardens, Laymer Road Silt Trap and Recreational Ground, Rewilding Enfield's Urban Rivers, Salmons Brook Flood Alleviation Scheme, Montagu Recreation Ground site, Salmons Brook River Restoration at Laymer Road, Salmons Brook at Grange Park


Site

Name Bury Lodge Wetlands
WFD water body codes GB106038027960
WFD (national) typology
WFD water body name Salmons 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 No
Species of interest
Dominant hydrology Quick run-off, Groundwater
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) 410 m0.41 km <br />41,000 cm <br />
Project started
Works started
Works completed
Project completed
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 Flood risk management
Hydromorphology Substrate conditions
Biology Macrophytes
Physico-chemical Nutrient concentrations
Other reasons for the project Community demand, Landscape enhancement, Recreation


Measures

Structural measures
Bank/bed modifications
Floodplain / River corridor Creation of wetland
Planform / Channel pattern
Other
Non-structural measures
Management interventions
Social measures (incl. engagement) Recreation, Improved public access
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

Supplementary Information

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