Case study:Bures Mill fish by-pass

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Location: 51° 58' 2", 0° 46' 52"
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Project overview

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Status Complete
Project web site
Themes Fisheries
Country England
Main contact forename Darren
Main contact surname Tansley
Main contact user ID
Contact organisation Essex Wildlife Trust
Contact organisation web site http://www.essexwt.org.uk/
Partner organisations
Parent multi-site project
This is a parent project
encompassing the following
projects
No
Bures Mill fish by-pass

Project summary

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The Bures Mill fish by-pass was installed to allow fish passage upstream of the Bures Mill automatic gate on the River Stour downstream of Lamarsh

Monitoring surveys and results

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Lessons learnt

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Image gallery


The Bures Mill Automatic Gate
Looking downstream of the automatic gate
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Catchment and subcatchment

Catchment

River basin district Anglian
River basin Combined Essex

Subcatchment

River name Stour DS Lamarsh
Area category 100 - 1000 km²
Area (km2)
Maximum altitude category Less than 100 m
Maximum altitude (m) 94
94 m
0.094 km
9,400 cm
Dominant geology Calcareous
Ecoregion Great Britain
Dominant land cover Arable and Horticulture
Waterbody ID GB105036040942



Site

Name Bures Mill
WFD water body codes GB105036040942
WFD (national) typology Low, Medium, Calcareous
WFD water body name Stour DS Lamarsh
Pre-project morphology Straightened
Reference morphology Straightened
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 Groundwater
Dominant substrate Clay, Gravel, Silt
River corridor land use Intensive agriculture (arable)
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 2010/05/01
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 Barriers to fish migration
Hydromorphology
Biology
Physico-chemical
Other reasons for the project


Measures

Structural measures
Bank/bed modifications
Floodplain / River corridor
Planform / Channel pattern
Other Fish by-pass channel
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
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Before measures After measures Qualitative Quantitative


Monitoring documents



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Supplementary Information

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