Case study:The South Cornwall River Improvement Project

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Location: 50° 9' 36.67" N, 5° 20' 46.40" W

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Project overview

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Status	In progress
Project web site
Themes	Economic aspects, Habitat and biodiversity, Social benefits, Water quality
Country	England
Main contact forename	Giles
Main contact surname	Rickard
Main contact user ID
Contact organisation	Westcountry Rivers Trust
Contact organisation web site	http://www.wrt.org.uk/
Partner organisations	IMERYS, Environment Agency, South West Water, Cornwall Council, South West Rivers Association, Natural England, Heligan Gardens, Forestry Commission
This is a parent project encompassing the following projects	The South Cornwall River Improvement Project - Mevagissey River, The South Cornwall River Improvement Project - River Par, The South Cornwall River Improvement Project - St. Austell, The South Cornwall River Improvement Project – Bokiddicks Stream, The South Cornwall River Improvement Project – Crinnis, The South Cornwall River Improvement Project – Gorran Stream, The South Cornwall River Improvement Project – Polmear stream, The South Cornwall River Improvement Project – Portmellon Stream, The South Cornwall River Improvement Project – Warleggan

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Project summary

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The SCRIP project is a partnership that will use CRF funds to manage restoration work to deliver habitat improvements on the rivers that drain South Cornwall and the St Austell bay area. The partnership, led by the Westcountry Rivers Trust, has been carrying out river restoration and addressing the causes of Water Framework Directive issues together for many years.

Through restoration work, the project will address issues including: flow modifications and habitat degradation; diffuse pollution from agriculture; barriers to fish migration; interrupted conveyance of river gravels reducing spawning habitats for salmonids; impacts from china clay extraction and historic mining

Monitoring surveys and results

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Lessons learnt

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Catchment and subcatchment

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Site

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Name	St. Neot
WFD water body codes
WFD (national) typology
WFD water body name
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
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

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Reach length directly affected (m)
Project started
Works started
Works completed
Project completed
Total cost category	500 - 1000 k€
Total cost (k€)	500500 k€ <br />500,000 € <br />
Benefit to cost ratio
Funding sources	Catchment Restoration Funds

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

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Mitigation of a pressure	Diffusse pollution, Aggregate/mineral extraction
Hydromorphology	Quantity & dynamics of flow
Biology	Fish
Physico-chemical
Other reasons for the project

Measures

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Structural measures
Bank/bed modifications
Floodplain / River corridor	Create riffle/pool
Planform / Channel pattern	Gravel introduction
Other
Non-structural measures
Management interventions
Social measures (incl. engagement)	Boards-Interpretation areas will be installed to disseminate information and engage and educate local users
Other

Monitoring

Hydromorphological quality elements

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quality elements

Element	When monitored		Type of monitoring		Control site used	Result
	Before measures	After measures	Qualitative	Quantitative

Biological quality elements

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quality elements

Element	When monitored		Type of monitoring		Control site used	Result
	Before measures	After measures	Qualitative	Quantitative

Physico-chemical quality elements

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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

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Element	When monitored		Type of monitoring		Control site used	Result
	Before measures	After measures	Qualitative	Quantitative

Monitoring documents

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Image gallery

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Additional documents and videos

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Additional links and references

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Link	Description
http://www.environment-agency.gov.uk/	The UK Environmet Agency is an Executive Non-departmental Public Body responsible to the Secretary of State for Environment, Food and Rural Affairs.The principal aims are to protect and improve the environment, and to promote sustainable development.
http://www.southwestwater.co.uk/	South West Water is part of Pennon Group plc. Provide reliable, efficient and high quality drinking water and waste water services throughout Cornwall and Devon and in small areas of Dorset and Somerset.
http://www.cornwall.gov.uk/default.aspx	Cornwall Council is the unitary authority for Cornwall, in England, United Kingdom.
http://www.naturalengland.org.uk/	Natural England is an Executive Non-departmental Public Body responsible to the Secretary of State for Environment, Food and Rural Affairs. Our purpose is to protect and improve England’s natural environment and encourage people to enjoy and get involved in their surroundings.

Supplementary Information

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