In 2017, an estimated 194 million metric tonnes worth about $73 billion USD ($95 billion CAD) were carried on the Maritime Transportation System. This includes the Great Lakes, St. Lawrence Seaway, and St. Lawrence River downstream to Les Escoumins, QC. The figures below illustrate how this cargo tonnage and value was broken down by different commodities.
Using the goals and metrics set by the maritime work group, Blue Accounting is tracking progress in the Great Lakes-St. Lawrence River maritime transportation system. We collected and synthesized data from a variety of U.S. and Canadian agencies and organizations representing the maritime industry and have presented data visualizations for the six current maritime transportation metrics.