Marine Highway

The latest developments and news affecting operations, conditions, and improvements of the Great Lakes/St. Lawrence Seaway System.

Ice Causes Shipping Delays on the Great Lakes

As the Great Lakes-St. Lawrence Seaway System officially closes for the 2025 navigation season this week, ice buildup has created shipping delays leading up to the closure. Frozen waters caused... Read More

Toledo Harbor Dredging Completed

The U.S. Army Corps of Engineers Buffalo District recently completed the largest annual dredging project on the Great Lakes. Dredging of Toledo Harbor’s federal navigation channel began in the fall and wrapped... Read More

Unlocking the Seaway’s Potential

Stakeholders have long said that the Great Lakes-St. Lawrence Seaway has the potential to increase service and contribute even more to North American trade and the international maritime industry. From efforts to expand container service to... Read More

Winding Down

As the Great Lakes-St. Lawrence Seaway System approaches its seasonal closure, the rhythm of maritime commerce slows. The Montreal–Lake Ontario section will cease transits after December 24, with all ships required to clear... Read More

Legacy of the Soo: The Remarkable Story of the Lock that Almost Wasn’t

On June 29, 1984, then-U.S. Reps. Don Albosta (D-Michigan) and Bob Davis (R-Michigan) successfully offered a floor amendment in the U.S. House of Representatives, beginning the legislative process that would... Read More

Industry Stakeholders Gather for the AGLPA 2025 Conference

Photos by Victor Studio – Chicago, Illinois  The annual American Great Lakes Ports Association (AGLPA) Conference took place August 14 and 15. Industry stakeholders and leaders met for the two-day... Read More

1958: The Year that Remade Great Lakes Shipping

1958 has received little attention as an important year for Great Lakes shipping. But, in fact, 1958 was a year of four pivotal events that together reshaped it. The St.... Read More

Corps of Engineers Begins Muskegon Harbor Revetment Repair Work

The U.S. Army Corps of Engineers, Detroit District is beginning long-term improvements to the Muskegon Harbor North Revetment to improve the safety and stability of the popular walkway.  The $5.765... Read More

MarAd Expands Inland Waterways

U.S. Department of Transportation Secretary Sean P. Duffy has announced the Maritime Administration (MarAd) has designated 848 new miles of navigable waterways and approved 14 new sponsors for the U.S.... Read More

Remaining Phase 3 Options Awarded for New Lock at the Soo

U.S. Army Corps of Engineers, Detroit District’s New Lock at the Soo project in Sault Ste. Marie, Michigan, has awarded a total of $95.3 million for remaining Phase 3 options... Read More

Visitors Welcome to Attend 2025 Soo Locks Engineers Day

The U.S. Army Corps of Engineers in conjunction with the city of Sault Ste. Marie, the Sault Ste. Marie Convention & Visitors Bureau, the United States Coast Guard, the Lake... Read More