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109. Though some indirect impacts on the setting of the Grade II Listed Figeon’s Farmhouse are anticipated at the convertor station location. Substantial woodland planting is proposed to the south-west (on a 5m high bund), north and east of the East Anglia THREE converter station which will further mitigate visual impact. Therefore these are considered to be negative but low magnitude and the impact is ofminor to negligible significance.


25.6.3 Potential Impacts during Operation


25.6.3.1 Impact 1: Buried Archaeological Remains 110. There may be the need for ongoing maintenance works during operation which would either require further groundworks or be through inspection of above-ground kiosks. It is most probable that any further groundworks undertaken will be within the existing disturbed footprint and therefore no further impacts on archaeological remains after the construction phase are anticipated.


25.6.3.2 Impact 2: Field Boundaries and Historic Landscape Character 111. It is likely that maintenance work undertaken during operation will be able to utilise existing access points into fields and therefore no further impacts on field boundaries and Historic Landscape Character are anticipated after the construction phase.


25.6.3.3 Impact 3: Built Heritage 112. There are no anticipated impacts on designated heritage assets along the cable route after construction.


113. Some indirect impacts on the setting of the Grade II Listed Figeon’s Farmhouse are anticipated at the proposed convertor station location which is incorporated in its westerly views. This impact may be long lasting and especially if the proposed East Anglia THREE windfarm is repowered beyond its initial operational lifetime. These are considered to be negative but low magnitude and ofminor significance. The impact may also be substantially mitigated by the planting of trees to act as screening along the eastern boundary of the convertor station location.


25.6.4 Potential Impacts during Decommissioning 114. It is anticipated that the onshore cable would be decommissioned (de-energised) and trenched cables left in-situ. However, where cables have been installed in pre- installed ducts it may prove possible to extract the cables relatively easily during the decommissioning phase. It has been assumed that the jointing pits and ducts would be left in-situ.


Preliminary Environmental Information April 2014


East Anglia THREE Offshore Windfarm


Chapter 25 Onshore Archaeology Page 32


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