    


Effects upon the burial of existing cables and pipelines; Interference and damage to sub-sea cables and pipelines; Disruption of oil and gas activities;


Disruption to marine aggregate activities; and Disturbance of unexploded ordnance.


109. These impacts are expected to be temporary, small scale and localised. Given the distance to other offshore windfarm developments, the localised nature of the development works and the implementation of embedded mitigation, there is no pathway for interaction between impacts cumulatively.


110. Therefore, given that the impacts assessed for the proposed East Anglia THREE project are considered negligible or avoidable through embedded mitigation, it is considered that at a cumulative level, impacts upon infrastructure and other users would be negligible.


18.8 Transboundary Impacts 111. Receptors considered for the transboundary impact assessment are:


  


European windfarms; Oil and gas; and


Cable and pipelines.


112. With regard the oil and gas activities there are no direct overlaps of active infrastructure and therefore no potential for transboundary impacts. Impacts upon cables and pipelines which cross international boundaries are covered above (see sections 18.6.1.2, 18.6.1.3, 18.6.2.2 and 18.6.2.3). There is no pathway for transboundary impacts upon UXO or foreign military operations.


113. Impacts to other European windfarms during construction of the proposed East Anglia THREE project could arise from the following:


  


Overlap of construction activities; Increased pressure on port facilities; Navigational safety issues; and


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Chapter 18 Infrastructure and other users Page 33


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