The Coast Guard is establishing a temporary safety zone for navigable waters within a 500-yard radius of Tug Nancy Anne, Tug Champion, Tug General, Tug WM. Boyd, Tug Shirley Ann, crew boat Timmy V., barges Koko II, Koko III, Koko IV, MM 141, MM 142, D Barge 2002, D Barge 2006, and D Barge 2007. The safety zone is needed to protect the vessels while laying stones to protect exposed sections of 138kV Submarine Power Cables in the Straits of Mackinac, MI. Entry of vessels into this zone is prohibited unless specifically authorized by the Captain of the Port Northern Great Lakes.
Source: Federal Register USCG
Link: Safety Zone; Submarine Power Cables Stone Laying Project, Straits of Mackinac, MI