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Great Lakes St. Lawrence Seaway System

Binational waterway authority operating the locks and channels of the St. Lawrence Seaway between Montreal and Lake Erie, a 3,700 km marine highway linking Canada and the United States.

Cornwall, ON · Organization

About

The Great Lakes/St. Lawrence Seaway was built as a binational partnership between the U.S. and Canada and opened to deep draft navigation in 1959. Administration is shared by the Great Lakes St. Lawrence Seaway Development Corporation, a wholly owned U.S. government corporation within the Department of Transportation created by statute on May 13, 1954, and the St. Lawrence Seaway Management Corporation, a Canadian not-for-profit corporation; ownership of the Canadian portion remains with the Canadian federal government.

The two entities coordinate operations around the clock, year-round, particularly regarding rules and regulations, day-to-day operations, traffic management, navigation aids, safety, environmental programs, operating dates and trade development.

Products · 11 of 11

NOAA

Federal / National Agencies · United States

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