110. Some loss of historic hedgerows is anticipated during the construction phase however mitigation measures such as re-instatement will be considered and set out in the OLEMS and should result in a negligible impact.


111. Potential effects to the setting of a heritage asset were only identified at the converter station location and this can be effectively mitigated by enhancement of existing screening vegetation. This was the only impact anticipated during the operational phase.


112. Impacts for decommissioning were predicted to be similar to construction in the absence of further information on the likely process of decommissioning at this time. Though if similar mitigation measures are employed only minor adverse impacts should result. Where intrusive groundworks lie within the already disturbed footprint no further impacts will occur.


113. Cumulative impacts with other developments were considered but nonewere identified. While there is a cumulative effect on buried archaeological remains within the wider area as a result of many of the developments considered, assuming appropriate preservation by record, or where possible, preservation in situ, is achieved, then this potential loss will be mitigated in line with planning policies relating to archaeology. There may also be considered to be a potential cumulative beneficial impact as archaeological knowledge and understanding of the locality is improved.


114. Although there is some overall cumulative impact on the Historic Landscape Character (HLC) of the area and historic hedgerows this is considered to be negligible as no substantial impact on HLC is anticipated for any of the projects, due in large part of the re-development of brownfield sites.


30.3.8 Chapter 26 Noise and Vibration 115. This assessment was based on desk-top studies, utilising existing noise study data and required consideration of and data from the traffic and transport assessment. A cumulative impact assessment has been presented which looks at up to three proposed East Anglia Offshore Windfarm projects being developed and considers the impact of the concurrent operation of their onshore project components.


116. Some potentially significant impacts were identified, however by following the implementation of standard mitigation measures these levels can be reduced to a non-significant level.


117. The enduring noise impact from the operation of the project is the noise emissions from the converter station. Due to the requirements set for operational noise in the


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Chapter 30 Summary and Conclusion Page 21


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