Case study:Whit Beck River Restoration Project

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Location: 54° 36' 40.86" N, 3° 18' 43.29" W
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Project overview

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Status In progress
Project web site
Themes Environmental flows and water resources, Flood risk management, Habitat and biodiversity, Hydromorphology, Land use management - agriculture, Land use management - forestry
Country England
Main contact forename Ian
Main contact surname Creighton
Main contact user ID User:Ian Creighton
Contact organisation West Cumbria Rivers Trust
Contact organisation web site http://westcumbriariverstrust.org
Partner organisations Environment Agency & Natural England
Parent multi-site project
This is a parent project
encompassing the following
projects
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Project picture

Project summary

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Whit Beck was an ambitious major pilot river restoration project undertaken by West Cumbria Rivers Trust on the behalf of the Environment Agency and Natural England summer 2014. This project was undertaken on Whit Beck, a fast flowing spate tributary of the River Cocker (River Derwent SSSI) in the English Lake District. A 350m section of heavily modified raised river channel was successfully diverted to natural self-sustainable diverse watercourse. The benefits include: • Restoration of natural river processes and associated features (WFD requirement) • Increase in stream length (over 3 fold - 1205m) and channel area (4/5 fold) • Provision of a wider range of habitats enabling fish to carry out the various stages of their life cycles within the new reach • Significantly improvement in floodplain connectivity (flood storage) • Increased in channel storage for gravels • The provision of wildlife corridors (plants, insects and animals) • Increased flood proofing for fish redds • New deciduous woodlands and woodland strips • Enhanced landscape

There were four parties with a vested interest in Whit Beck, two farmers, one tenant and an independent landowner. The scheme was entirely voluntary and all parties had to be on board for the project to get off the ground and succeed. It took two years of planning, investigations and engineering to complete. The total cost over the life of the project is in the vicinity of £700k. Construction was completed by the end of September 2014.

Monitoring surveys and results

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Lessons learnt

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Image gallery


The heavily modified raised river channel
Before divesion
During construction of new channel
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Catchment and subcatchment



Site

Name
WFD water body codes
WFD (national) typology
WFD water body name
Pre-project morphology
Reference morphology
Desired post project morphology
Heavily modified water body
National/international site designation
Local/regional site designations
Protected species present
Invasive species present
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) 0.3km increased to 1.2km"kmincreasedto1.2km" is not declared as a valid unit of measurement for this property.
Project started 2013/10/01
Works started 2014/06/16
Works completed 2014/10/03
Project completed
Total cost category 500 - 1000 k€
Total cost (k€)
Benefit to cost ratio
Funding sources Environment Agency & Natural England

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 Heavily engineered high level carrier
Biology Limited habitat
Physico-chemical
Other reasons for the project Re-connect river with floodplain and reduction of substrate delivery to R Cocker


Measures

Structural measures
Bank/bed modifications Constructed new natural channel and imported mixed substrate for the new river to sort
Floodplain / River corridor Re-connected to local floodplain and provided a site for gravel deposition to help reduce build up in River Cocker
Planform / Channel pattern Channel naturalisation; Creation of new meandering channel
Other
Non-structural measures
Management interventions
Social measures (incl. engagement) Significant engagement with local community
Other


Monitoring

Hydromorphological quality elements

Element When monitored Type of monitoring Control site used Result
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Biological quality elements

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Physico-chemical quality elements

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Any other monitoring, e.g. social, economic

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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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