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
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Average unit stream power (W/m2)


Project background

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Project started
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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

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Investigation and design
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Reasons for river restoration

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Mitigation of a pressure
Hydromorphology
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Measures

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Monitoring

Hydromorphological quality elements

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quality elements
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Biological quality elements

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quality elements
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Physico-chemical quality elements

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quality elements
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Additional links and references

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Supplementary Information

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