Let's talk tonnage.

Here are Marine Tonnage Reports for the Port of Duluth-Superior. Our navigation season runs from March through January; tonnage figures are reported accordingly (in short tons).

You may click on any navigation year highlighted below to see monthly tonnage/vessel visit reports, plus season-end reports. The document entitled "Historic Tonnage Figures" traces harbor statistics back to 1871 for major commodities shipped through the Port of Duluth-Superior.