14.
Reinstatement of land. The onshore cable route is approximately 75m in width except at the HDD locations
where spacing of ducts will be wider. Within the onshore cable route a working width of 55m will be required. Within this working width there will be space for any haul road, temporary laydown areas, jointing pits and temporary spoil storage.
15. Note that the haul road requirement under this scenario is currently being reviewed. In the original design iteration for this option it was assumed that all access to the onshore cable route would be made via those access points identified for East Anglia ONE. This would in places require the removal of hedgerow and reinstatement of haul road to access isolated locations for jointing pits (i.e. those locations which are far removed from field boundaries adjoining roads).
16. It is desirable to reduce the requirement for haul road for two reasons. Firstly under
Scenario 1 the bulk of the materials delivered to and taken off site will be for the creation of the haul road itself. Any reduction in haul road requirement would reduce overall material volumes and therefore vehicle movements. Secondly, if existing tracks could be upgraded to access remote jointing pit locations this would reduce disruption to arable fields (and hedgerows and other sensitive habitats) and provide an upgrade to the local infrastructure.
17. Use of existing tracks would be subject to consultation with landowners, therefore
the red line boundary displayed on the figures for this PEIR show these areas within the boundary in order to prompt consultation on the possible use of new access routes not previously consulted on for East Anglia ONE.
18. 19. 20. For Scenario 2 it is assumed that the whole of the onshore cable route would consist
of open cut trenches, except at the HDD locations shown in Figure 21.4. Full details of the two scenarios being considered is provided within Chapter 5
Description of the Development. For each impact, the assessment utilises a worst case approach for each of the two
scenarios described above. The design parameters that constitute worst case vary depending on the potential impact under consideration and are used as detailed in Table 22.2 below.
21. Only those design parameters with the potential to influence the level of impact are identified. Therefore, if the design parameter is not described below, it is not considered to have a material bearing on the outcome of the land use impact assessment. For example: the number of vehicles required during construction
Preliminary Environmental Information May 2014
East Anglia THREE Offshore Windfarm
Chapter 22 Land Use Page 7
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