30.2.11 55.
Chapter 17 Offshore Archaeology and Cultural Heritage
The construction, operation and decommissioning phases of the proposed East Anglia THREE project will result in a range of effects upon the marine archaeological and cultural heritage environment. The significance of these effects has been assessed based on best practice, consultation and professional judgement. The impact assessment for this topic built on marine geology, oceanography and physical processes assessment in relation to understanding likely effects from sediment transport and morphological effects on the sea bed, which may have indirect impacts upon archaeological receptors.
56.
Impact upon known archaeological receptors will be avoided due to appropriate mitigation or avoidance and will therefore be of negligible significance. There is potential for impacts to potential archaeological receptors (i.e. those as yet unidentified), however, the significance of any effects can be reduced by adherence to appropriate mitigation strategies. Likewise for cumulative impacts, mitigation measures will be put in place for all projects to avoid impacts on known archaeological receptors and suitable protocols established for dealing with potential archaeological receptors, resulting in negligible andminor adverse impacts respectively.
57. While the impacts upon potential archaeological receptors (ie those not yet discovered)may be adverse, the benefits associated with mitigation geared towards chance discoveries (i.e. the accumulation of archaeologically interpreted data and an overall contribution to a greater understanding of the offshore archaeological resource) represents a positive cumulative effect that cannot be discounted.
58.
The assessment concludes that through the implementation of safety zones, direct transboundary impacts to known archaeological receptors are not expected to occur during the lifetime of the proposed project.
30.2.12 59.
Chapter 18 Infrastructure and Other Users
The assessment looked at potential impacts upon the following other users of the sea (note the commercial fisheries, shipping and aviation are all assessed separately elsewhere), including:
Other UK and European windfarm developments; Existing cables and pipelines;
Disruption of oil and gas activities; Disruption to marine aggregate activities;
Preliminary Environmental Information May 2014
East Anglia THREE Offshore Windfarm
Chapter 30 Summary and Conclusion Page 13
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