decommissioning phases would put the safety risks within acceptable limits. These issues are considered further within Chapter 15 Shipping and Navigation.
265. Potential allision risks between windfarm infrastructure and construction / decommissioning vessels and fishing vessels are discussed in Chapter 15 Shipping and Navigation.
14.6.1.4 Impact 4: Increased Steaming Times to Fishing Grounds 266. The implementation of temporary transitory safety zones and advisory exclusion zones during the construction and decommissioning phase could, in theory, result in some short term increases in steaming distances and times, and therefore higher operational costs for fishing vessels. As with safety issues for fishing vessels, the standard environmental impact assessment matrix is not wholly appropriate for considering increased steaming times.
267. In the case of local vessels, which for the most part concentrate their activity within the 12nm limit, and therefore do not venture beyond the proposed East Anglia THREE project, there should be no material adverse impacts on increased steaming times.
268. As shown by Figure 14.12- Figure 14.16 and Figure 14.30- Figure 14.31, the locations of the main fishing ports relative to the majority of fishing grounds for the Dutch and Belgian fleets are such that traditional steaming routes would not involve passages through the area to be occupied by the proposed East Anglia THREE project.
269. Similarly, the majority of the fishing grounds of the Danish, French, Norwegian and German fishing vessels, relative to the location of their base ports would generally not involve steaming routes that would pass through the proposed East Anglia THREE project.
270. During the construction phase, the theoretical worst case scenario for commercial fishing would be the implementation of a 500m safety zone around the entire perimeter of the East Anglia THREE site for the total duration of the construction phase of 30 months (see Table 14.2).
271. In practice however, temporary transitory safety zones can only be placed around foundations and installations that are under construction, the size and location of safety zones changing as construction progresses.
272. In summary, it is not expected that the construction phase of the proposed East Anglia THREE project will have any discernible impact of fishing vessels' steaming
Preliminary Environmental Information May 2014
East Anglia THREE Offshore Windfarm
Chapter 14 Commercial Fisheries Page 91
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