]> 2026-04-19T02:31:48+00:00 Case study:Salmons Brook River Restoration at Laymer Road 500 en Draft Toeboard removal Weir removal Environment Agency Great Britain Yes No Yes false No 51.629318237305,-0.066888608038425 John Environment Agency Bryden Toeboard removal, Weir removal,, ,,Improved public access,Economic benefits 12708 2008-01-01Z 2454466.5 Planned This stretch of river has been subject to a previous project undertaken by the Environment Agency’s predecessors the National Rivers Authority in 1994. This installed 5 small weirs and a toe boarding along a significant length of the river. These structures would now be seen as inappropriate due to the their impact on the morphology of the stream and the requirements of the Thames River Basin Management Plan. The proposal therefore is to removal the silt traps, regrade banks, meander river and remove the check weirs and toe boarding.<br><br> The Salmons Brook is an urban river running through Enfield, London. The river has large number of issues including water quality due to urban diffused pollution and physical modifications including weirs and hard banks. For this reason the catchment (water body) has been designated as Heavily Modified for urbanisation and flood protection in the Thames River Basin Management Plan with a target of getting the river into Good Ecological Potential by 2027. The section of river from the A10 (TQ3342994308) to Latymer Rd (TQ3389694053), has been identified as section which could be improved relatively significantly through relatively minor interventions. Once the river exists the A10 culvert it passes between 2 allotments with a small footpath running on top of the left bank. At the end of the allotments there’s a footbridge across the river where the left bank opens into a small recreation ground, with the right bank being a housing estate. The informal footpath follows the top of the left bank to Latymer Rd dividing the river from the a junior school.<br><br> The investigation needed to be completed and costed by April 2011. The consultants (whoever wins the work) will be required to undertake a detailed level survey of this stretch of river and develop options to remove these structures and restore the river to a natural morphology. The consultants should look to develop only in channel options as its not feasible to meander the channel – although regrading might be viable in some areas. Its believed that there should be two options produced 1) Complete removal or notching of the weirs, 2) replacement of the weir’s by a series of fixed gravel riffles. However if the consultants believe that there would be another viable option then they should fully investigate and present this. The consultants will also be required to investigate if the toe boarding can be removed as well.<br><br> Aspects to consider with the investigation include the reason for the installation (erosion control) of the structures and the future consequence of there removal on the surrounding areas. The consultants also need to consider cost of instillation as there is a limited budget available for installation and therefore a cost efficient solutions needs to be developed. Salmons Brook River Restoration at Laymer Road salmons brook river restoration at laymer road No 500 London Thames Salmons Brook salmons brook Improved public access 10 - 100 km² 136 100 - 200 m Salmons Brook GB106038027960 Fisheries Flood risk management Habitat and biodiversity Social benefits GB106038027960 Salmons Brook Economic benefits 2014-04-03T08:41:38Z 2456750.8622454 2015-10-27T10:56:19Z 2457322.9557755 Salmons Brook River Restoration at Laymer Road 500 1 plainlist 5 [[Category:Case study]] [[Project title::!Salmons Brook River Restoration at Laymer Road]] [[Subcatchment title::Salmons Brook]] Salmons Brook River Restoration at Laymer Road# QUERYb63f7c49c27544e6ef26d2d9ad6bfac3