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Within floodplains gaps will be provided at intervals within soil or other material stockpiles to act as drainage pathways, to ensure that floodwater drainage is not hindered and flooding exacerbated


Within flood plains stockpiles will be constructed with a regular profile and the surface compacted to minimise the potential for erosion by flowing water


No watercourses will be left dammed overnight 175


The banks will then be fully reinstated to their original profile using best practice techniques, including stabilisation techniques such as use of geotextile matting. Such stabilisation techniques are usually very successful in ensuring future bank stability and as such no future monitoring is anticipated. The specific reinstatement techniques, including stabilisation techniques, will be outlined in the Specific Method Statement for each watercourse crossing.


11.7 Protection of fish during open cut crossings


176 Where either wet or dry open cut techniques are employed the mitigation measures outlined below will be followed:


All watercourses would be temporarily flumed (by installation of pipes) and ramps installed to allow uninterrupted flow of water within the watercourse and provide continuous running track for vehicles


Any construction works in relation to watercourses (and therefore potentially impacting fish) would be subject to detailed method statements, provided by the contractor,that would be agreed with the Environment Agency before the start of construction. These method statements would detail the need for any fish rescue techniques and additional mitigation over and above the embedded mitigation outlined in Chapter 22 Water Resources and Flood Risk, to minimise sediment run off and pollution incidents in line with Environment Agency Pollution Prevention Guidance documents


A specific method statement will be developed for the River Fynn and River Lark, recognising their sensitivity due to the presence of naturalised brown trout and eels. Suitable mitigation in the form of localised reprofiling of the river bed to create microhabitats could be considered within the DCO Order Limits


Following the implementation of best practice techniques no significant impacts on fish and fish spawning habitats are anticipated as a result of the installation of the onshore cable route.


Outline Code of Construction Practice. Version 3. Page 54


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