New Study Details Economic Impact of the Great Lakes-St. Lawrence Seaway System
- $36 billion (USD) in economic activity;
- more than 240,000 jobs, which generated almost $18 billion (USD) in wages;
- the movement of 135.7 million metric tons of raw materials and finished goods; and
- $6.3 billion (USD) in state and federal taxes.
The study was requested by a public/private sector committee of American and Canadian maritime organizations, with the intent of providing the navigation community and other stakeholders with an independent assessment of the economic contributions made by commercial maritime shipping in the Great Lakes and St. Lawrence region throughout North America.
The entire study is available here.
In addition to the information presented in this study, an additional study detailing the public and private investments made in the Great Lakes -St. Lawerence Seaway System will be released this fall.

Two Decades of Wind Energy Cargo at Duluth’s Clare Terminal
In August 2025, the Asian Spirit arrived at Duluth’s Clure Public Marine Terminal, delivering 39 wind turbine blades destined for North Dakota. This shipment marked the culmination of a six-voyage... 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