Bank and bed material would be stored separately to aid reinstatement. Topsoil, subsoil and bedrock will be stored separately and replaced in sequence as part of site restoration work. Where possible spoil would be set back 5m from watercourses to minimise potential for silt run off from the working width
Open-cut crossings would be completed in the shortest time possible
Where required flume bridges would be in place for the duration of the construction period. At crossings a 5m strip of vegetation would be retained to act as a natural buffer. Full restoration of the site, including the dismantling of any temporary bridges and flume pipes will be undertaken when the whole cable has been laid
Appropriate measures will be applied to match the individual circumstances of each watercourse or ditch crossing. The techniques used will be detailed within a Specific Method Statement for each watercourse crossing, to be consulted upon with the local authorities, Environment Agency and Internal Drainage Board. The techniques used will aim to provide rapid reinstatement, bank stabilisation and cable protection. In all instances, banks will be re-profiled to match the existing bank. If necessary, additional measures will be taken to ensure that the banks remain stable. The size of the bank and flow rate in the channel will determine the techniques or combination of techniques to be used, and this will be discussed/agreed with the Internal Drainage Board
Where practical refuelling of mobile plant will be carried out a minimum of 30m from any watercourse (and not on slopes leading to watercourses)
Spill control measures will be employed, including drip trays, nozzles and absorbent pads as appropriate. The design of bowsers, hoses etc. will be checked to ensure that they are not vulnerable to rupture or leak, e.g. because of exposed pipe-work
Mobile plant will be returned to the Construction Consolidation Sites each night
Adequate spill kits will be kept in all site vehicles and plant; additional stocks will be issued to watercourse crossing crews and the emergency crew(s) and staff will be trained in their use
All spillages to ground or watercourses will be reported and recorded as part of incident notification procedures to the statutory authorities
Within a floodplain 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
Outline Code of Construction Practice. Version 3. Page 49
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