SUGAR ISLAND — The U.S. Coast Guard ice-breaking fleet in Sault Ste. Marie is operating at limited capacity following engineering casualties on two cutters this week. The equipment failures occurred March 4, 2026 and have restricted the fleet’s ability to maintain specific transit routes in the northern Great Lakes.
The affected vessels, Coast Guard Cutter Biscayne Bay and Coast Guard Cutter Katmai Bay, are responsible for ensuring the safe flow of commerce and residents through the maritime transportation system. The mechanical issues come as the region faces significant ice coverage across the Great Lakes and the St. Marys River.
The Biscayne Bay, also known as WTGB 104, experienced an engineering casualty Monday that has limited its functionality. The vessel is currently restricted to track maintenance within the St. Marys River. Because of the mechanical issue, the cutter is unable to safely perform the tight turns required to clear ice from the Sugar Island Ferry route. The crew is troubleshooting the ship to restore full capabilities while continuing limited underway operations.
The Katmai Bay, or WTGB 101, is currently in port as engineers work to address an ongoing casualty. Coast Guard officials stated there is no estimated time for the vessel to return to active service. The service continues to monitor ice conditions across all waterways to determine how to best allocate remaining assets and minimize disruptions to local industry.
Capt. James Bendle serves as the commander of Coast Guard Sector Northern Great Lakes. He emphasized that the Coast Guard is working to manage the impact of the mechanical failures on the local community.
“Coast Guard Sector Northern Great Lakes has been in steady communications with the Eastern Upper Peninsula Transportation Authority regarding the ice conditions and the Sugar Island Ferry service since Saturday morning,” Bendle said. “We value our islands and their residents tremendously and understand the impacts to our community. The patience of the community is appreciated as we work through unexpected engineering casualties to the two icebreakers charged with working the Sugar Island Ferry Route and Saint Marys River. We have significant ice across the entire Great Lakes and much work ahead to facilitate the flow of people and commerce.”
An additional Coast Guard cutter is expected to be available to transit to the area for ice-breaking operations. That vessel is scheduled to arrive by Monday.