Case study:Colne Water Restoration Project

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Location: 53° 51' 12", -2° 9' 27"
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Project overview

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Status In progress
Project web site
Themes Economic aspects, Habitat and biodiversity, Hydromorphology, Social benefits, Water quality
Country England
Main contact forename Jo
Main contact surname Spencer
Main contact user ID
Contact organisation Ribble Rivers Trust
Contact organisation web site http://http://www.ribbletrust.org.uk/projects/colne-water/
Partner organisations Colne Water Angling Club, Pendle Borough Council, Durham University, Woodland Trust, Forestry Commission, Environment Agency, Lancashire Wildlife Trust, ‘Friends Of’ groups, Hanson Cement
Parent multi-site project
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encompassing the following
projects
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Project summary

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Colne Water Restoration is a partnership project that will use CRF funds to improve watercourses in an area of the Ribble Catchment that is intensely farmed and urbanised. Some river channels have been heavily modified during the Industrial Revolution. Diffuse pollution, a lack of riparian habitat, unnatural flow regimes attributable to upland drainage and obstructions to fish passage are causing certain watercourses in the Colne Water Catchment to fail to meet the required standards under the Water Framework Directive (WFD). Fish populations, particularly salmonids, have been found to be greatly diminished. To ensure that the failing waterbodies achieve Good Ecological Status under the WFD, the Ribble Rivers Trust aims to improve the habitat and connectivity in order to generate sustainable fish populations. The creation of riparian buffer zones will reduce diffuse pollution from farmland and roads, and some upland drainage grips are to be blocked to encourage a sustainable return to natural flow regimes.

Community Involvement - Practical volunteering activities like river clean-ups, wildlife surveys and tree planting, and awareness raising through walkover surveys and appraisal tours, Public consultation, survey work.

Monitoring surveys and results

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Lessons learnt

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Image gallery


Colne Water Restoration Area
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Catchment and subcatchment

Catchment

River basin district North West
River basin Ribble

Subcatchment

River name Colne Water - Trawden Bk to Wanless Water
Area category 10 - 100 km²
Area (km2)
Maximum altitude category 200 - 500 m
Maximum altitude (m) 310
310 m
0.31 km
31,000 cm
Dominant geology Siliceous
Ecoregion Great Britain
Dominant land cover Improved grassland
Waterbody ID GB112071065200



Site

Name Colne Water Catchment
WFD water body codes GB112071065200
WFD (national) typology
WFD water body name Colne Water
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 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)
Project started 2012/07/01
Works started
Works completed
Project completed 2015/03/01
Total cost category 500 - 1000 k€
Total cost (k€) 1000
1,000 k€
1,000,000 €
Benefit to cost ratio
Funding sources Catchment Restoration Fund

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 Pollution incident, Urbanisation, Agriculture
Hydromorphology Quantity & dynamics of flow, Structure & condition of riparian/lake shore zones, Substrate conditions
Biology Fish
Physico-chemical Nutrient concentrations
Other reasons for the project


Measures

Structural measures
Bank/bed modifications Tree planting, Bank stabilisation
Floodplain / River corridor
Planform / Channel pattern Removing barriers to water organisms migration in the river
Other
Non-structural measures
Management interventions
Social measures (incl. engagement) Awareness raising
Other Practical volunteering activities like river clean-ups, Wildlife surveys, Public consultation, Survey work


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




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Additional links and references

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Supplementary Information

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