The operating season is established under federal regulation based on the ability of vessels to navigate typical Great Lakes ice conditions. 

The locks closed Jan. 15 after the final vessel transit of the season, beginning a 10-week winter shutdown for inspections, repairs and maintenance. 

Crews completed several projects on the Poe Lock during the closure, including underfloor cleanout and manhole inspection, a five-year periodic inspection, Gate 1 repairs, Gate 4 lifting lug installation, Gate 2 concrete repairs and the application of an experimental ice-shedding coating. Additional work was also completed on the MacArthur Lock. 

LeighAnn Ryckeghem, Soo Locks operations manager, said the winter closure allows for essential work on aging infrastructure. 

“The reliability of Great Lakes navigation and the momentum of the American industrial supply chain depend on getting this work done,” she said. 

The St. Lawrence Seaway officially launched the 68th navigation season on March 22 at the St. Lambert Lock in Montreal. The M/V Blacky, operated by Canfornav, was the season’s ceremonial vessel.

“Canada and the United States have built something exceptional in the St. Lawrence Seaway,” said Jim Athanasiou, president and CEO of the St. Lawrence Seaway Management Corporation (SLSMC). “Our tonnage has remained consistent year-over-year, demonstrating steady performance. As we open this season, we are continuing with initiatives to responsibly grow this vital trade corridor, support industry, economic development and communities in both countries.”

Feature image courtesy of U.S. Army Corps of Engineers, Detroit District