]> 2026-04-07T15:14:16+00:00 Case study:Butter Hill Phase 2 500 en Approved Weir notched Bank reprofiling Introduction of gravel Introducing large woody debris Planting of native species Channel narrowing Wandle Trust Great Britain Yes No Yes false No - Urban nature of the site - Getting some local, neighbouring residents to understand and buy in to the project was difficult 51.3712180331,-0.15972982160747 Tim Wandle Trust Longstaff Weir notched, Bank reprofiling, Introduction of gravel, Introducing large woody debris, Planting of native species,,Large scale planting of native species,,Channel narrowing, ,,Community consultation, Community Events,, Please see the parent project (River Wandle Restoration Project) for the final results on this work, combined with the other phases. 22107 Before and After of Restoration Works © Wandle Trust 2010-10-31Z 2455500.5 Butterhill Phase 2 Before and Afters.png Complete This Project is part of a larger scheme with the overall aim of establishing a population of brown trout in the Carshalton arm of the River Wandle for the first time in over 80 years. For more background on this larger scheme, please refer to the parent project "River Wandle Restoration Project". The weir at Millpond Place was notched to restore natural flow to the upstream channel.   The over-wide and straightened channel was narrowed and a new bank line created with the help of volunteers by using chestnut faggot bundles pinned into place with chestnut stakes. Silt from the channel was then moved behind the faggot bundles to create a new bank. Brash and topsoil were added to stabilise this new bank and 1000 native aquatic plants and three planted coir rolls were installed to further stabilise it with the help of volunteers.   Seventy tonnes of gravel were added to the newly modified channel and carefully distributed to create riffles, pools and bars giving rise to a variety of new habitat areas for fish, invertebrates and plants.   Further habitat works were carried out in channel with volunteers, adding Large Woody Debris flow deflectors to diversify the flow. Two “Dragon’s Tooth” berms were created by installing logs and brash bundles. Almost 100 volunteers were involved over several weekends. Butter Hill Phase 2 butter hill phase 2 No London Thames Large scale planting of native species Wandle (Carshalton Branch at Carshalton) wandle (carshalton branch at carshalton) Community consultation Community Events 10 - 100 km² 160 100 - 200 m Wandle (Carshalton Branch at Carshalton) GB106039017640 Fisheries Habitat and biodiversity Social benefits Urban GB106039017640 Wandle (Carshalton Branch at Carshalton) 2011-10-31Z 2455865.5 2011-01-01Z 2455562.5 2016-02-09T14:27:38Z 2457428.1025232 2017-06-28T14:41:01Z 2457933.1118171 Butter Hill Phase 2 500 1 plainlist 5 [[Category:Case study]] [[Project title::!Butter Hill Phase 2]] [[Subcatchment title::Wandle (Carshalton Branch at Carshalton)]] Butter Hill Phase 2# QUERYba16a7c2b5740a312339d80577c1ab29