]> 2026-04-22T00:23:24+00:00 Case study:River Wensum Restoration, Reach 3a Costessey 500 en RWRS Fact Sheet 8 - Costessey.pdf FryBay.MOV Draft Creation of gravel deflectors Gravel berms Re-introducing gravel Introducing large woody debris Environment Agency Great Britain Yes No Yes CostesseyBerms.JPG CostesseyBerms2.JPG FencedCattleDrink.JPG 10 - 50 k€ Environment Agency Environment Agency Natural un-milled and untreated timber for use as woody material was difficult to source at this location. Sourcing material for future schemes needs to be a consideration in the design. After an exceptionally dry summer the river level had dropped such that the fenced cattle drinks no longer allowed livestock to reach the water to drink (see photos). The scheme also included un-fenced drinks which the livestock could use. Consideration for livestock watering provisions in the event of low water levels must be included in future designs. 52.666313212733,1.2024262792237 Amy.butcher Amy Environment Agency Butcher Creation of gravel deflectors, Gravel berms, Re-introducing gravel,,Tree planting,,Introducing large woody debris, Cattle drinks, fry bays,,, 1 - 10 k€ Environment Agency Analysis of monitoring results pending. Post-restoration water vole surveys suggest that fenced tree enclosures which were no longer grazed provided additional habitat for water voles. Field signs (latrines and food stores) were observed in areas where they hadn't previously been seen. Cattle drinks fry bays 26124 1 - 10 k€ Environment Agency Complete Reach 3a of the River Wensum Restoration Strategy involved restoring 1.2km of SSSI & SAC designated river at Costessey, west of Norwich, Norfolk. Improvements to morphological diversity were achieved here through the installation of gravel glides, pools and berms and woody material. Informal cattle drinks were enhanced to reduce poaching and sediment input whilst still providing water to the landowner's livestock. These cattle drinks also acted as fry bays whilst fields were not being grazed. Tree planting was also carried out in exposed stretches of the river. River Wensum Restoration, Reach 3a Costessey river wensum restoration, reach 3a costessey 1200 Broadland Rivers Anglian Tree planting Wensum US Norwich wensum us norwich 1 - 10 k€ Environment Agency 100 - 1000 km² 98 Less than 100 m Wensum US Norwich GB105034055881 Habitat and biodiversity Hydromorphology 100 - 500 k€ Environment Agency 2020-10-14T11:55:59Z 2459136.9972107 2020-10-14T14:51:48Z 2459137.1193056 River Wensum Restoration, Reach 3a Costessey 500 1 plainlist 5 [[Category:Case study]] [[Project title::!River Wensum Restoration, Reach 3a Costessey]] [[Subcatchment title::Wensum US Norwich]] River Wensum Restoration, Reach 3a Costessey# QUERYb47d4e64875f3c0cac18f1d914da5f21