Coast Guard Set To Open Multiple Waterways This Week

March 18, 2026

SAULT STE. MARIE, MI – In accordance with 33 Code of Federal Regulations 162.117, the Coast Guard is set to reopen multiple regulated waterways in the northern Great Lakes beginning on March 19.

Vessel Traffic Service St. Marys River will open the Pipe Island Passage, East of Pipe Island Shoal and North of Pipe Island Twins from Watson Reef Light to Sweets Point, at 10 a.m. EST, March,19. The Pipe Island Course will become a two-way route.

In accordance with 33 Code of Federal Regulations 165.901, the Captain of the Port Northern Great Lakes is set to open the waters separating Mackinac Island and St. Ignace, Michigan, at 1 p.m. EST, March 19. COTP Great Lakes is set to open the waters between St. Ignace and Mackinac Island at the request of Mackinac Island community leaders.

In accordance with 33 CFR 162.117, Vessel Traffic Service St. Marys River will open the West Neebish Channel effective March 19 at 10 a.m. EST.

The Coast Guard encourages all recreational ice users to plan their activity carefully, use caution on the ice, and stay clear of shipping channels.

USCG