APPENDIX 1 Designated Sites


The following sections provide comprehensive lists of the statutory and non-statutory designated sites that fall in the search area. The name, designation, grid reference, distance from the site and a description of each site is given; the sites are listed in order of proximity1 to the proposed cable corridor and converter station. The descriptions for statutory sites have been obtained from the citations available from Natural England, the Joint Nature Conservation Comittee, the National Association for Areas of Outstanding Natural Beauty and relevant Borough Councils. The descriptions for non- statutory designated sites have been obtained from Suffolk Biological Record Centre, the Woodland Trust and Suffolk Wildlife Trust.


Table 3. Details of Statutory Designated Sites within 2 km of the Proposed Cable Corridor and Converter Station Showing Site Name, Designation, Location and Distance from the Development.


Site Name, Designation, Grid Reference, Distance from Site Centre Point, Description


Bawdsey Cliff, SSSI, TM3460 386, 0 m Bawdsey Cliffs are of great geological interest and potential for studies of non-glacial Pleistocene environments. The cliffs provide over 2km of section in the Butleyan division of the Early Pleistocene Red Crag. The site constitutes by far the largest available exposure of the Red Crag and is rich in marine Mollusca.


Deben Estuary, SPA, Ramsar & SSSI, TM295 441, 0 m


The Deben Estuary is important for its populations of over wintering waders and wildfowl and also for its extensive and diverse saltmarsh communities. Several estuarine plants and invertebrates with a nationally restricted distribution are also present. The Estuary extends for over 12 km in a generally south-easterly direction. It is sinuous, relatively sheltered and narrow, particularly at its mouth, which is protected by shifting sand banks. Mudflats occupy much of the intertidal area with more sandy deposits occurring where exposed Red Crag erodes from cliffs. The Deben Estuary supports approximately 40% of Suffolk’s area of saltmarsh which also displays the most complete range of the vegetation’s community types in the county. These occur in a highly complex mosaic with the variation in the proportions of species being dependent upon several factors including substrate type, frequency of tidal inundation, exposure, position within the Estuary and past management practices. The site supports a diverse assemblage of birds. The numbers of Tringa totanus (Redshank) over wintering on the Estuary are of international importance and the summer breeding population of this species is of county significance. The site is of national importance for its winter populations of Recurvirostra avosetta (Pied Advocet), Branta bernicla (Dark-bellied Brent Goose), Tringa erythropus (Spotted Redshank), Tadorna tadorna (Shelduck), Anser fabalis (Bean Goose), and Limosa limosa (Blacktailed Godwit) with the numbers of Anas penelope (Wigeon), Anas acuta (Pintail) and Pluvialis squatarola (Grey Plover) approaching this level in some years. The site also supports Vertigo angustior (Narrow-mouthed Whorl Snail), a species found in only


1 Please note that when a site is made up of two or more separate areas, Proximity to Site is calculated from the area located closest to the pipeline route.


East Anglia Offshore Wind Limited


Background Data Search Report 854188 (Rev 01)


16


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