19.


For Scenario 2 it is assumed that the whole of the onshore cable route would consist of open cut trenches, except at the Horizontal Directional Drilling (HDD) locations shown in Chapter 21 Water Resource and Flood Risk (Volume 2, Figure 21.4). Therefore, under this scenario, works would be similar to those described as those for the proposed East Anglia ONE project in paragraph 13.


20. 21.


Full details of the two scenarios being considered are 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. Table 19.2 below details the assumptions used.


22. Only those design parameters with the potential to influence the level of impact are identified here. Therefore, if the design parameter is not described in the table below, it is not considered to have a material bearing on the outcome of the assessment.


23.


The realistic worst case scenarios identified here are also applied to the cumulative impact assessment (CIA). When the worst case scenarios for the project in isolation do not result in the worst case for cumulative impacts, this is addressed within the cumulative section of this chapter (see section 19.7).


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Chapter 19 Soils, Geology and Ground Condition Page 9


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58