147.831—Holstein Truss Spar safety zone.
(a) Description.
Holstein, Green Canyon 645 (GC 645), located at position 27°19′17″ N, 90°32′08″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone. These coordinates are based upon North American Datum 1983.