44.


The NPPF states that heritage assets should be recognised as “an irreplaceable resource” and to “conserve them in a manner appropriate to their significance” (Department for Communities and Local Government 2013:30). Since archaeological receptors cannot adapt, tolerate or recover from direct impacts caused by a proposed development, then for the purposed of this Chapter, the sensitivity of each receptor was quantified only by their value.


17.4.3.3 Value 45.


For the purposes of this assessment, and where possible, the value of archaeological receptors has been determined in accordance with the definitions displayed in Table 17.5. Each receptor received a rating from negligible (receptors considered to be a limited value or importance) to high (receptors that are regarded as an extremely significant component of the cultural heritage resource).


46.


In accordance with the NPPF and the Marine Policy Statement, while the definitions displayed in Table 17.5 outline that designation indicates that a receptor has been identified as being of high value, non-designated heritage assets are not necessarily of lesser importance. Very few offshore archaeological sites are designated. This is due to a lack of investigation and data and the difficulties of identifying archaeological features and material offshore.


47.


The nature of the archaeological resource is such that there is a high level of uncertainty concerning remains on the sea bed. It is often the case that data concerning the nature and extent of sites is out of date, extremely limited or entirely lacking. As such, in line with COWRIE guidance (2007), the precautionary principle is often necessarily applied to aspects of archaeological impact assessment.


48. Where uncertainty occurs, the precautionary approach is to assign high value to the resource. Consequently, if a receptor is impacted, magnitude and significance may in some cases be over assessed.


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Chapter 17 Offshore Archaeology Page 28


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