Page 2-18 Draft Environmental Impact Statement for the Port Ambrose Project Deepwater Port Application
2.1.15 Maritime, Safety, and Related Matters
Limited access areas including Safety Zones, No Anchoring Areas (NAAs), and Areas to be Avoided (ATBA) are established with varying degrees of vessel restrictions and notification requirements.
Pursuant to the regulations of the Deepwater Port Act of 1974 (DWPA), the U.S. Coast Guard (USCG) is authorized to establish temporary and mandatory Safety Zones around deepwater ports whether or not a vessel is present. As proposed by Liberty, the Safety Zone radius would be 1,640 feet (500 meters) from the center of each STL Buoy, when no LNGRV is present, encompassing a total combined area for Safety Zones for both STL Buoys of approximately 388 acres or 0.6 square mile (Figure 2.1-12). When an LNG carrier is present, the Safety Zone would extend 1,640 feet (500 meters) off the stern of the 919-foot (280-meter) vessel as it weathervanes on the STL Buoy effectively creating an approximately 2,560-foot (780-meter) radius Safety Zone from the STL Buoy.
In addition to the Safety Zone, a NAA and an ATBA would be established at the request of the USCG to the IMO. As proposed by Liberty, the NAA and ATBA would be the same size with a radius of 3,281 feet (1,000 meters) from the center of each STL Buoy. This would be approximately 1,552 acres or 2.4 square miles around each STL Buoy (Figure 2.1-12).
LNG vessel traffic would be coordinated by Liberty personnel (Figure 2.1-13). The actual size of the ATBA that would be requested of the IMO would be determined through the advice and consent of the USCG. Past practices has been that ATBAs have a radius of at least 820 feet (250 meters) longer than that of the NAA for appropriate stand-off, which would occupy an area of 1, 213 acres around each STL Buoy. The ATBA would appear on subsequent editions of the local and regional nautical charts for both STL Buoys. The ATBA is meant to discourage vessel traffic and is recommendatory.
Section 2:
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Page 3-61 of the Draft Environmental Impact Statement for the Port Ambrose Project Deepwater Port Application:
The Deepwater Port Act require the establishment of a zone of appropriate size around and including any deepwater port for the purpose of navigational safety. In such zone, no installations, structures, or uses are permitted that would be incompatible with the operation of a deepwater port.
See page 3-62 for map showing location of turrets in relation to the Long Island-New York City Offshore Wind Project proposed area.
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All Documents:
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