]> 2026-04-17T04:18:25+00:00 Case study:Poyle channel enhancement and weir removal 500 en Draft Bank reprofiling Weir removal Creation of pools and riffles Environment Agency Great Britain FRM capital works Yes No Yes false No A difficulty may be in ensuring that flows in the complex Lower Colne system do not cause flooding elsewhere, as well as the access and cost of the proposed project. It had prior to the last LRAP update in August 2010, been mothballed. 51.477443695068,-0.51377511024475 Usha Environment Agency Chapman Bank reprofiling, Weir removal,,Creation of pools and riffles ,,, Photographs pre-works 12656 2008-01-01Z 2454466.5 Complete Primary objectives - Manage flood risk; improve upstream habitat; manage water level; reduce backwater effect<br>Secondary objectives - Improve fish passage; reprofile reach; narrow watercourse; raise natural bed level; naturalise bank side; marginal ecology improvement; in-stream diversity increase and naturalise flow regime Biodiversity enhancement and weir removal project. Poyle channel enhancement and weir removal poyle channel enhancement and weir removal No 500 Colne Thames Colne Brook (from confluence with Alderbourne to confluence with Horton Brook) colne brook (from confluence with alderbourne to confluence with horton brook) 10 - 100 km² 70 Less than 100 m Colne Brook (from confluence with Alderbourne to confluence with Horton Brook) GB106039023010 Fisheries Flood risk management Habitat and biodiversity 50 - 100 k€ GB106039023010 Colne Brook (from confluence with Alderbourne to confluence with Horton Brook) 2014-04-03T08:35:35Z 2456750.858044 2015-10-27T10:28:32Z 2457322.9364815 Poyle channel enhancement and weir removal 500 1 plainlist 5 [[Category:Case study]] [[Project title::!Poyle channel enhancement and weir removal]] [[Subcatchment title::Colne Brook (from confluence with Alderbourne to confluence with Horton Brook)]] Poyle channel enhancement and weir removal# QUERYb4289fe7d7bd9f16c2f4bc5f2d91154e