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The onshore cable route was selected as part of the development works for East Anglia ONE. Further detailed information on the onshore cable route selection process can be found in the East Anglia ONE Preliminary Environmental Information (EAOW, 2012a). Whilst this route was primarily identified for the East Anglia ONE project, the intention throughout the process was to identify a route which could accommodate the requirements of two further projects (up to 3.6 GW of connection in total).
5.
The onshore cable route was selected following an iterative process and in consultation with local authorities, local communities and relevant statutory consultees. An initial boundary was refined in a number of stages through the analysis of environmental and technical (engineering) constraints and consultation. This exercise was supported further by site walkovers at specific locations by environmental and technical specialists.
6. The key drivers for selecting the preferred onshore cable route were:
• Local authorities and conservation bodies consulted provided a strong indication that routeing north of Ipswich would be preferable in order to minimise the requirement for major estuary crossings;
• Assuming a landfall at Bawdsey, the environmental preference was to cross the Deben as quickly as possible to route away from the AONB and avoid marshland and bird overwintering areas - it was also preferable to route west of the Deben to Woodbridge given the archaeological importance of the area to the east (close to Sutton Hoo);
• Assuming a route north of Ipswich, a route east of Newbourne was seen as preferable as this was more direct, thereby reducing disruption, and avoiding a SSSI;
• A route immediately to the south of Woodbridge was the preferred route as this avoided any areas of woodland and County Wildlife Sites (CWS); and
• A route west of Suffolk Water Park was considered preferable to the route east as it avoided a potentially contaminated land site (a former fertiliser factory) and a landfill.
7. 8. Evidence Plan
East Anglia THREE & East Anglia FOUR Offshore Windfarms
Onshore Ecology Method Statement Page 5
The principles for site selection were agreed as being appropriate by Natural England in the Statement of Common Ground agreed for East Anglia ONE in July 2013.
The onshore cable route is shown in Figure 2. October 2013