]> 2026-04-29T15:27:43+00:00 Case study:Drayton 500 en Drayton Case Study v1 25022012 comp.pdf Drayton case study Ecology Link Ltd - Ecological survey and scheme design Water-Lines Solutions - supplied the coir rolls Approved Deflectors Bank stabilisation Cattle drinkers Introduction of gravel No Yes No No Fish,Yes,No,No,No,No, Invertebrates,Yes,No,No,No,No, Fish Invertebrates No Channel narrowing Environment Agency Welland Rivers Trust Wild Trout Trust Great Britain Environment Agency Yes No Yes true No No No No Substrate conditions,No,No,No,No,No, Substrate conditions No No 52.515291694211,-0.78703821823729 Environment Agency Customer Contact Environment Agency Anglian Northern Area Fencing Deflectors, Bank stabilisation, Cattle drinkers, Introduction of gravel,,Tree planting, Tree management,,Channel narrowing, ,Fencing,,, 1190 Welland Rivers Trust, Wild Trout Trust location map 2011-12-01Z 2455896.5 Drayton.jpg Complete The scheme was implemented by the Environment Agency with the co-operation and agreement of the adjacent landowners (Matthew and Melanie Robinson and Alister Brooke-Clarke) and in-kind support from the Welland Rivers Trust and the Wild Trout Trust. Summary of Techniques: Faggot, woody debris and coir roll flow deflectors; channel pinching using faggots, woody debris and coir rolls; introduction of gravels to augment and create riffles; bank toe protection using rock and coir; new cattle drinkers; riverside fencing; selected tree works including crown-lifting and pollarding; new tree and shrub planting; artificial otter holt construction. Background During the 1970s the River Welland was significantly modified. The natural river morphology was altered to improve land drainage and flood water discharge. The river was deepened; many meanders, pools, riffles and glides were removed; and the river was constricted within high, straight banks. High winter flood flows and poor land management practices now cause significant bank erosion and sedimentation. Prior to modification a high proportion of these nutrient-rich sediments would have been deposited on the floodplain, providing rich grazing pasture, but, as a result of the flood defence works, a large proportion of these sediments now remain in the channel, degrading habitats including fish spawning gravels. Drayton drayton Yes 1700 Welland Anglian Tree planting Tree management Welland welland EU - WFD protected area (drinking water, shellfish etc.) River Welland downstream of Ashley gauging station river welland downstream of ashley gauging station otter; brown trout 1000 - 10000 km² 10 Less than 100 m Welland GB105031050680 Habitat and biodiversity 70 50 - 100 k€ Calcareous GB105031050580 Welland 2011-09-01Z 2455805.5 2012-08-22T15:12:40Z 2456162.1337963 2017-06-01T12:42:45Z 2457906.0296875 Drayton 500 1 plainlist 5 [[Category:Case study]] [[Project title::!Drayton]] [[Subcatchment title::Welland]] Drayton# QUERY46e53b5085326dfeb898859fac3b9c96