3.1.10 Aviation and Ministry of Defence 35.


The assessment has considered all forms of aviation interest including that of the Ministry of Defence, regional airports, local aerodromes, national air traffic control, the civil aviation authority and international bodies. The assessment covered effects on aviation radar systems and the physical effect of the offshore windfarm in both UK and overseas airspace.


36.


The assessment established that, providing the proposed East Anglia THREE project is displayed properly on aviation charts, and that there is adequate marking and lighting of all wind turbines consistent with UK regulations, only minor impacts would occur as a result of the construction and decommissioning phases. The assessment also concluded that during the operation phase, wind turbines could cause interference on civil and military radars and that a technical solution for this may be required.


3.1.11 Offshore Archaeology and Cultural Heritage 37. A review of previous studies was used, alongside data collected from sea bed surveys, to determine the extent of the archaeological features which exist within the East Anglia THREE site and the offshore cable corridor.


38.


The assessment concluded that impacts to archaeology and cultural heritage could largely be avoided if a number of steps are taken, such as the adoption of exclusion zones around wrecks, and the positioning of turbine foundations and electrical cables away from any archaeological features.


3.1.12 Infrastructure and Other Users 39.


This assessment looked at potential impacts upon the following activities in the area: other windfarm developments; cables and pipelines; oil and gas activities; and, marine aggregate activities.


40.


Co-operation with other industries would largely avoid impacts. For instance, East Anglia THREE Limited will be required to undertake crossing agreements with operators of other cables and pipelines to ensure that these crossing are made safely and without damage to other infrastructure.


3.2 Onshore 41.


The onshore cable route and converter station are collectively referred to as the ‘onshore electrical transmission works’. The assessment of impacts on the onshore environment has taken account of two potential scenarios for the installation of the onshore electrical transmission works:


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Non-Technical Summary Page 8


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