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would be largely concealed below ground and therefore have very little influence on the cumulative situation


29.11 Summary of Impacts of Landfall Location and Onshore Cable Route 29.11.1


175. Scenario 1: Impacts of Landfall Location and Onshore Cable Route


In Scenario 1 it is assumed that East Anglia ONE project has already been constructed and is operational. The key implication of this is that many of the components required for the landfall location and onshore cable route, which are designed to be shared with the East Anglia THREE project, would already be constructed. This greatly reduces the potential impacts associated with the East Anglia THREE landfall location and onshore cable route.


176. As part of the East Anglia ONE project, a combination of HDD and open-cut trenching construction techniques would have been used to install ducts for the onshore cables along the 37km length of the route. The installation of the East Anglia THREE onshore cable route would require the pull through of the cables at each of the jointing pits, which would need to be constructed where the sections of cable route would need to be joined. This would avoid any further open-cut trenching or HDD construction, although Construction Consolidation Sites for the pull through process would be required.


177. The most notable impacts relating to the landfall location and onshore cable route would occur during the construction phase, although very few of the impacts would be significant. This would result from a combination of the following factors. Firstly, the extents of the construction works would be especially localised owing to the existing presence of the ducts which means activity would be largely concentrated at the intermittent jointing pits. This would greatly reduce the disturbance to the physical elements, landscape character and visual amenity. Secondly, without HDD drilling, the scale of the machinery would be more compact and therefore have a lesser impact on receptors. Thirdly, the construction phase is short-term and this further reduces the potential impact. And fourthly, the impacts which would occur are reversible, with embedded mitigation including the restoration of vegetation where loss or disturbance would occur, once construction is complete.


178. The assessment has reported that during the construction phase of scenario 1 there would be no significant impacts on any of the landscape or visual receptors, with the exception of the localised and short term impact on the cliffs at Bawdsey, where potentially access onto the beach would be required.


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Appendix 0 Example


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