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Project overview

Status Planned
Project web site
Themes Habitat and biodiversity, Social benefits
Country England
Main contact forename John
Main contact surname Bryden
Main contact user ID
Contact organisation Environment Agency
Contact organisation web site http://www.gov.uk/government/organisations/environment-agency
Partner organisations London Borough of Enfield, developers
Parent multi-site project
This is a parent project
encompassing the following
projects 		No
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Project summary

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River corridor and in channel enhancements and enhancements to the New River with recreational and educational benefits. Development of the area as outlined in the Local Development Framework Area Action Plan

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 Pymmes Brook (upper channel with Muswell St & Bounds Grn Brk)
Area category 10 - 100 km²
Area (km2)
Maximum altitude category 100 - 200 m
Maximum altitude (m) 131
Dominant geology Calcareous
Ecoregion Great Britain
Dominant land cover Suburban
Waterbody ID GB106038027940



Other case studies in this subcatchment: Arnos Park - Pymmes Brook, Friary Park, Friern Barnet Former Sewage Works, Merdian Water development site, Parks between A10 and Melville Gardens, Weir removal at Tile Kiln Park, Wilmer Way School Playing Field


Site

Name
WFD water body codes GB106038027940
WFD (national) typology
WFD water body name Pymmes Brook (upper channel with Muswell St & Bounds Grn Brk)
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) 400 m
Project started
Works started
Works completed
Project completed
Total cost category
Total cost (k€)
Benefit to cost ratio
Funding sources Developers (106 agreements), Community Infrastructure Levy

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
Physico-chemical
Other reasons for the project Recreation


Measures

Structural measures
Bank/bed modifications
Floodplain / River corridor
Planform / Channel pattern
Other
Non-structural measures
Management interventions
Social measures (incl. engagement) Recreation, Community Education
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

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Supplementary Information

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