Case study:Re-connecting Meanders at Cranebank on the River Crane

From RESTORE
Jump to navigation Jump to search
0.00
(0 votes)


To discuss or comment on this case study, please use the discussion page.


Location: 51° 28' 24.93" N, 0° 24' 52.58" W
Loading map...
Left click to look around in the map, and use the wheel of your mouse to zoom in and out.


Project overview

Edit project overview
Status Complete
Project web site
Themes Fisheries, Habitat and biodiversity
Country England
Main contact forename Gareth
Main contact surname Tulley
Main contact user ID
Contact organisation Environment Agency
Contact organisation web site http://www.environment-agency.gov.uk
Partner organisations
Parent multi-site project
This is a parent project
encompassing the following
projects
No
River Crane at Cranebank

Project summary

Edit project overview to modify the project summary.


Reconnecting old meanders which had been historically cut off when the channel was straightened

Monitoring surveys and results

This case study hasn’t got any Monitoring survey and results, you can add some by editing the project overview.

Lessons learnt

This case study hasn’t got any lessons learnt, you can add some by editing the project overview.


Image gallery


Gravel bar installed to block old straightened channel, pushing main flow around re-connected meander
ShowHideAdditionalImage.png


Catchment and subcatchment

Catchment

River basin district Thames
River basin London

Subcatchment

River name Crane (including part of the Yeading Brook)
Area category 10 - 100 km²
Area (km2)
Maximum altitude category Less than 100 m
Maximum altitude (m) 5151 m <br />0.051 km <br />5,100 cm <br />
Dominant geology Calcareous
Ecoregion Great Britain
Dominant land cover Suburban
Waterbody ID GB106039023030



Other case studies in this subcatchment: Big Yellow, Crane Park, Cranford Park Phase 2, Hospital Bridge Road, Mill Road Weir, The Mid River Crane - Aquatic Refuge Identification Plan


Site

Name Cranebank
WFD water body codes GB106039023030
WFD (national) typology
WFD water body name Crane
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 2 - 5 m
Average bankfull channel width (m)
Average bankfull channel depth category 0.5 - 2 m
Average bankfull channel depth (m)
Mean discharge category 1 - 10 m³/s
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) 500500 m <br />0.5 km <br />50,000 cm <br />
Project started
Works started 2012/03/01
Works completed 2012/04/01
Project completed
Total cost category 10 - 50 k€
Total cost (k€) 5050 k€ <br />50,000 € <br />
Benefit to cost ratio
Funding sources Environment Agency

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 Urbanisation
Hydromorphology Flow velocities
Biology Fish
Physico-chemical
Other reasons for the project


Measures

Structural measures
Bank/bed modifications
Floodplain / River corridor
Planform / Channel pattern Reconnection of cutoff meander
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

Supplementary Information

Edit Supplementary Information