Jetty Non Technical Summary - EDF Hinkley Point
Jetty Non Technical Summary - EDF Hinkley Point
Jetty Non Technical Summary - EDF Hinkley Point
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Residual Impacts<br />
7.7.18 No significant residual impacts are predicted to occur.<br />
7.8 Navigation<br />
Existing Environment<br />
7.8.1 The Severn Estuary is an important shipping route, with commercial vessels navigating<br />
through the deep water approaches to several ports and harbours. Apart from the Port of<br />
Bridgwater, these ports are situated distant away from <strong>Hinkley</strong> <strong>Point</strong>, either on the south<br />
coast of Wales or at and upstream of Bristol. Databases of commercial shipping<br />
movements indicate that shipping in Bridgwater Bay is very low. As shown by two<br />
months of data from 2009, most commercial shipping movements occur on the opposite<br />
side of the Bristol Channel (see Figure 14; Note: this figure shows the proposed<br />
alignments of the cooling water structures associated with <strong>Hinkley</strong> <strong>Point</strong> C - intake in blue<br />
and outfalls in red).<br />
7.8.2 The Port of Bridgwater’s limits cover approximately 25 square nautical miles and include<br />
Combwich Wharf and Dunball Wharf on the River Parrett, but do not extend west as far<br />
as the proposed jetty development. Bridgwater Harbour Authority (part of Sedgemoor<br />
District Council) is responsible for navigation and mooring, safety, rights of access,<br />
pilotage, maintenance of channels and navigation aids oil spill contingency and port<br />
waste management. Port operations, oil spill contingency and port waste management<br />
plans are in place. Commercial vessel movements at the Port of Bridgwater totalled 41<br />
in 2007 and 37 in 2008. Most vessels were carrying aggregates and general cargo.<br />
Recreational moorings within the port limits are located mainly in the River Brue Estuary<br />
and Combwich Pill, although recreational activity tends to be focused around Burnhamon-Sea.<br />
7.8.3 As indicated on Figure 14, vessels inbound for the River Parrett and the Port of<br />
Bridgwater pass to the west and south of the Bell Gore Buoy, having due regard for the<br />
Cobblers Patch Shoal of -1.8m CD, which is located 2.5 cables south-south-west of Bell<br />
Gore. This route means vessels would pass directly north of the proposed jetty<br />
development’s location at <strong>Hinkley</strong> <strong>Point</strong>.<br />
7.8.4 The Bridgwater Bay Danger Area (D119) establishes the air space allocated for military<br />
activities and covers a circular area over land in West Somerset and sea in Bridgwater<br />
Bay. Its extent over the sea is marked on Admiralty Charts (as “Firing Practice Area<br />
D119”) and covers a partial circular area offshore that could be defined by an arc<br />
extending from <strong>Hinkley</strong> <strong>Point</strong> to beyond the 10m bathymetric contour towards Culver<br />
Sands and returning to land at Watchet. The Danger Area is a delineation of the air<br />
space above the water and does not place any restrictions on navigation and vessels<br />
have the right to transit it at any time.<br />
7.8.5 The Lilstock Range Firing Area is smaller than and is situated within D119 but only<br />
extends over the sea in Bridgwater Bay. Similar to D119, the firing area covers a partial<br />
circular area offshore that could be defined by an arc extending from east of <strong>Hinkley</strong><br />
<strong>Point</strong> and returning to land to the west of Watchet. The firing area delineates the water<br />
surface template for air to surface gunnery activities and is marked by buoys. The firing<br />
area is used primarily for military helicopter gunnery training and is operated under a<br />
clear range procedure so that exercises and training only take place when the area is<br />
clear of vessels.<br />
<strong>Hinkley</strong> <strong>Point</strong> C Preliminary Works<br />
<strong>Non</strong> <strong>Technical</strong> <strong>Summary</strong><br />
Temporary <strong>Jetty</strong> Development 41 November 2010