United States Department of Transportation

Experience the St. Lawrence Seaway

Highlights

The Seaway Today
Learn about who we are & what we do
Maritime Community Resources
See why the Seaway is important
History of the Seaway
Discover why the Seaway is a unique DOT presence

Latest Updates

September 9, 2025

Media Advisory - September 9, 2025 (Temporary Exhibit Power Outages at Seaway Visitor Center—Facility Remains Open)

September 9, 2025

Press Release - June 25, 2025 (Mike McCoshen Sworn In as New Administrator of the Great Lakes St. Lawrence Seaway Development Corporation)

September 5, 2025

August 15, 2025

Press Release - August 15, 2025 (Great Lakes Seaway Announces Port Winners of 2024 Season "Pacesetter Award")

April 1, 2025

Press Release - April 1, 2025 (St. Lawrence Seaway Begins 67th Navigation Season)