]> 2026-04-05T09:31:35+00:00 Case study:The River Deerness Project 500 en CRF020 Project Briefing Note - Deerness.pdf CRF Project briefing note - Deerness Approved creation of rock pools downstream of culvert No No No No ,No,No,No,No,No, No Remove obstacles in the riverbed Removing barriers to water organisms migration in the river Wear Rivers Trust Durham County Council Durham University Great Britain Defra Catchment Restoration Fund Durham County Council Durham University Yes Yes Yes false Cornsay Colliery culvert.jpg Broadgate Ford.jpg Cornsay Colliery culvert Broadgate Ford No 54.776533980091,-1.6105270385742 Steve Wear Rivers Trust Hudson creation of rock pools downstream of culvert,,,Remove obstacles in the riverbed, Removing barriers to water organisms migration in the river ,,,Establishment of partnership working and joint delivery to be extended under the auspices of the Wear Catchment Management Plan. NO006 monitoring framework table.docx RRC Monitoring table - Deerness 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 5853 Durham County Council, Durham University Cornsay Colliery culvert 2015-03-31Z 2457112.5 Cornsay Colliery culvert.jpg 2012-07-01Z 2456109.5 Complete 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 species and also because of water quality issues (principally phosphate) reflected in altered phytobenthos. 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 post-implementation 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. Further funding from the Catchment Restoration Fund as well as Durham County Council and Durham University allowed for the provision of a rock pool fish easement at a road culvert on at Cornsay Colliery located on Hedleyhope Burn (a tributary of the River Deerness), completed in September 2012. Hedleyhope Burn is 9.2km in length. The road culvert has been cutting of fish access to 5km of good quality habitat, as under most flow conditions the culvert becomes impassable. This 30m corrugated steel pipe has rapid and shallow uniform flows when water levels are low, and concentrated high velocity flows at high water levels. An extensive erosion pool at the downstream exit to the culvert exhibits the force of water leaving the culvert. A wide concrete step 15 to 20 cm above the surface of the water also obstructs fish passage into the culvert. The solution was to replace the existing scour pool with a series of rock pools to provide a variety of flows for fish, as well as drowning out the concrete step by increasing water levels back into the culvert and creating a slower and deeper flow, improving fish passage. Flood risk was not increased as the site is in a deep depression with no buildings close by. The site is owned by Durham County who also contributed half of the cost. The Wear Rivers Trust helped with the design of the rock pool easement. Due to the location in a high rainfall upland area, 2-3 tonne rocks were used to form a continuous line of bank protection to protect the site a high flow levels. Larger gravels were also used, and willow spiling is due to be installed at a later stage. The River Deerness Project the river deerness project http://www.wear-rivers-trust.org.uk/content/deernessrestoration No 130 Wear Northumbria Browney from Smallhope Burn Deerness confl browney from smallhope burn deerness confl Deerness deerness 100 - 1000 km² 309 200 - 500 m Browney from Smallhope Burn Deerness confl GB103024077551 Fisheries Habitat and biodiversity Hydromorphology Water quality GB103024077551; GB103024077290 Browney from Smallhope Burn Deerness confl; Hedleyhope Burn from Source to Deerness Establishment of partnership working and joint delivery to be extended under the auspices of the Wear Catchment Management Plan. 2013-06-10T06:12:20Z 2456453.7585648 2018-11-01T12:17:35Z 2458424.0122107 The River Deerness Project 500 1 plainlist 5 [[Category:Case study]] [[Project title::!The River Deerness Project]] [[Subcatchment title::Browney from Smallhope Burn Deerness confl]] The River Deerness Project# QUERY8514493f73aa228994cb7cd6e733d56e 500 1 list 3 [[Category:Case study]] [[Parent project::Case study:The River Deerness Project]] The River Deerness Project# QUERYa3c7eb6c72e667627bb357b6fe8b0e84 Case study:Hedleyhope Burn 500 en Hedleyhope Burn Case study:The River Deerness Project 2 500 en The River Deerness Project 2 Parent project 102 en Parent project