In preparation for the M/V TERN’s anticipated arrival this week in San Francisco Bay, the Coast Guard and Port of San Francisco asked Coast Survey for a bathymetric survey of the proposed anchorage site. TERN is a semi-submersible vessel with a 60-foot draft, and the proposed anchorage site has charted depths of 62 feet and 63 feet ‒ leaving no room for error, to say the least. The question was whether there are any spots shoaler than 62 feet.
This isn’t your everyday anchorage.
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NOAA navigation response teams improve charts for ships transiting Miami and San Francisco
Coast Survey’s navigation response teams, which are 3-person hydrographic survey teams on small boats, have made a fast start on this year’s survey season.
In Florida, where Coast Survey is preparing to issue a “new and improved” Miami Harbor Chart 11468 to alleviate vessel congestion at the Port of Miami, a navigation response team finished final hydrographic surveys to ensure the new chart has the latest and most accurate depth measurements around several areas identified as critical within the port. In just ten days, team members Erik Anderson, James Kirkpatrick, and Kurt Brown acquired, processed, and submitted the multibeam survey data covering 64 nautical miles.
Continue reading “NOAA navigation response teams improve charts for ships transiting Miami and San Francisco”