Northern Green Bay Ice Breaking Operations

USCG Cutter Mackinaw
Photo Credit:

Sault Ste Marie, MI. – U.S. Coast Guard Cutter Mackinaw will enter Green Bay at Rock Island Passage to conduct several days of ice trials in northern Green Bay.

While in Green Bay USCGC Mackinaw will perform a series of operational tests to
evaluate and record the performance of their shipboard systems in the thick plate ice.
The cutter will not purposely interact with shore fast ice, not enter any port, and plans
to spend each night out on the ice. USCGC Mackinaw will operate in the vicinity of
Chambers Island remaining north and east of Green Island and west of Washington
Island. Recreational users of the ice should plan their activity carefully, use caution
near the ice, and remain clear of these prescribed areas.

Further inquiries or specific questions regarding the exact timing of these events can
be made by phone to the Vessel Traffic Service in Sault Ste. Marie at (906) 635-3232.