Saint Lawrence Seaway

United States Department of Transportation

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Experience the SLSDC!

Providing a safe, secure, and competitive international waterway!

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Experience the U.S. locks!

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Experience the U.S. locks!

The U.S. Eisenhower and Snell Locks in Massena, N.Y.
Experience the Great Lakes-Seaway System!

North America's "Highway H2O"!
Great Lakes, Great Opportunities: An Introduction to SLSDC

Learn about the Saint Lawrence Seaway Development Corporation!

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The Seaway Today

Learn about who we are & what we do
History of the Seaway

Discover why the Seaway is a unique DOT presence
Maritime Community Resources

See why the Seaway is important

Latest Updates

6/17/2019

Press Release - U.S. Wind Energy and Construction Supported by Great Lakes Seaway Shipping with Large Increases in Project Cargo During May
6/11/2019

Press Release - U.S. Department of Transportation Announces Hands-Free Mooring Technology Fully Operational at all St. Lawrence Seaway Locks
6/6/2019

Press Release - U.S. Department of Transportation Announces Hands-Free Mooring Technology Fully Operational at all St. Lawrence Seaway Locks
5/23/2019

Saint Lawrence Seaway Development Corporation Honors Employees with Administrator’s Awards

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Would you like to learn more? Are you a shipper? Please visit the Great Lakes Seaway System Binational Web Site

U.S. DEPARTMENT OF TRANSPORTATION

Saint Lawrence Seaway Development Corporation

1200 NEW JERSEY AVENUE, SE

WASHINGTON, DC 20590

855-368-4200

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