Case study:The River Deerness Project

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Location: 54° 46' 35.52" N, 1° 36' 37.90" W

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Project overview

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Status	In progress
Project web site	http://www.wear-rivers-trust.org.uk/content/deernessrestoration
Themes	Habitat and biodiversity, Hydromorphology, Water quality
Country	England
Main contact forename	Steve
Main contact surname	Hudson
Main contact user ID
Contact organisation	Wear Rivers Trust
Contact organisation web site	http://www.wear-rivers-trust.org.uk/
Partner organisations	Durham County Council, Durham University
This is a parent project encompassing the following projects	Hedleyhope Burn, The River Deerness Project 2

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Project summary

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The Deerness catchment, located west of Durham City, covers 53 km2 and includes the small colliery towns of Ushaw Moor, Esh Winning and Cornsay. Land use is largely agricultural, with woodland cover and several reclaimed open cast and landfill sites. A significant part of the catchment fails the Water Framework Directive for fish, due to the cumulative effects of barriers to the upstream and downstream movement of all fish spe-cies and also because of water quality issues (principally phosphate) reflected in altered phytobenthos.

The Wear Rivers Trust operates fish and invertebrate surveys to assess fish populations and water health in both catchments. Under CRF a Durham University PhD student, with WRT and volunteer support, will survey below and above each obstruction both before and after restoration activities to measure impacts on those animal groups. Changes in invertebrate communities are not expected as a direct result of the restoration activities but they can inform on the wider food web for fish feeding opportunities, and provide biotic indices of water quality, giving wider insight into local environmental quality. Waste water management is significant across the Lower Wear system, including these two catchments. Supplementary projects, based on a separate volunteer walkover programme, will be developed under the auspices of the Wear River Catchment Management Plan to identify and address point and diffuse sources of pollution, in order to augment CRF actions for improvement to fish movement within these catchments. The outcomes of the project are the following: enhanced habitat connectivity throughout both catchments allowing all fish species, migratory and non-migratory, maximum scope to spawn and feed; improved knowledge of fish populations and behaviours through baseline and postimplementation monitoring and evaluation; progress toward/achievement of Good Ecological Status and focus on any residual water quality issues required to achieve good status; establishment of partnership working and joint delivery to be ex-tended under the auspices of the Wear Catchment Management Plan.

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	Deerness
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	Intensive agriculture (arable)
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	100 - 500 k€
Total cost (k€)	108108 k€ <br />108,000 € <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	Water quality, Barriers to fish migration
Hydromorphology	Continuity for organisms
Biology	Phytobenthos, Fish
Physico-chemical	Phosphate
Other reasons for the project

Measures

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Structural measures
Bank/bed modifications
Floodplain / River corridor
Planform / Channel pattern	Remove obstacles in the riverbed, Removing barriers to water organisms migration in the river
Other
Non-structural measures
Management interventions
Social measures (incl. engagement)
Other	Establishment of partnership working and joint delivery to be extended under the auspices of the Wear Catchment Management Plan.

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
[[]]	No	No	No	No	No

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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Cornsay Colliery culvert

Broadgate Ford

Additional documents and videos

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Additional links and references

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Link	Description

Supplementary Information

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