The data below tracks the total tonnage and value of commodities shipped on the Maritime Transportation System between 2012 to 2018. The Maritime Transportation System 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. Changes in commodity tonnage handled and value of cargo reflect changing global and regional economic forces.
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.