Case study:Bleinheim Palace Project

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


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


Location: 51° 52' 39", -1° 29' 42"
Edit location
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 Habitat and biodiversity, Hydromorphology, Water quality
Country England
Main contact forename Nick
Main contact surname Haycock
Main contact user ID
Contact organisation Haycock Environmental Consultants
Contact organisation web site
Partner organisations Amenity Water
Parent multi-site project
This is a parent project
encompassing the following
projects
No
River Evenlode, post restoration

Project summary

Edit project overview to modify the project summary.


Due to their loss of spawning and nursery sites, rheophilic fish populations (especially barbel, chub and dace) the river Evenlode faced significant recruitment problems. These problems originate in the widening and dredging of the channel leaving it over-sized, with few features to provide habitat or refuge for juvenile fish. With local angling club membership dwindling, the project aimed to increase fish populations in the river through the introduction of a more diverse flow and the allowance of more frequent flooding.

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


River Evenlode, May 2006
Created side bars, May 2006
Backwater (for high water flows), May 2006
Water access for lifestock, May 2006
P1432.JPG
Spit in river, May 2006
ShowHideAdditionalImage.png


Catchment and subcatchment

Catchment

River basin district Thames
River basin Cotswolds

Subcatchment

River name Evenlode (Bledington to Glyme confluence)
Area category 100 - 1000 km²
Area (km2)
Maximum altitude category 200 - 500 m
Maximum altitude (m) 213
213 m
0.213 km
21,300 cm
Dominant geology Calcareous
Ecoregion Great Britain
Dominant land cover Arable and Horticulture
Waterbody ID GB106039029960



Site

Name River Evenlode
WFD water body codes GB106039029960
WFD (national) typology
WFD water body name Evenlode (Bledington to Glyme confluence)
Pre-project morphology High width:depth
Reference morphology Sinuous, Pool-riffle
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
Dominant substrate Gravel, Sand, Cobble
River corridor land use Extensive agriculture
Average bankfull channel width category 10 - 50 m
Average bankfull channel width (m)
Average bankfull channel depth category 0.5 - 2 m
Average bankfull channel depth (m)
Mean discharge category
Mean annual discharge (m3/s) 3.70 m3/s
3,700 l/s
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)


Project background

Reach length directly affected (m) 2000 m
2 km
200,000 cm
Project started 2005/09/01
Works started
Works completed 2006/03/01
Project completed
Total cost category 100 - 500 k€
Total cost (k€) 140 k€
140,000 €
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



Reasons for river restoration

Mitigation of a pressure
Hydromorphology Substrate conditions, Width & depth variation, Continuity of sediment transport, Flow velocities
Biology Fish: Species composition, Fish: Abundance
Physico-chemical
Other reasons for the project Landscape enhancement, Recreation


Measures

Structural measures
Bank/bed modifications Planting, Creation of pools and riffles, Introduction of spawning gravels
Floodplain / River corridor Creation of backwaters
Planform / Channel pattern Channel narrowing
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.therrc.co.uk/case studies/evenlode blenheimpalace.pdf River Restoration Centre Case Study

Supplementary Information

Edit Supplementary Information