DULUTH, MN (KDAL) – 2025 was a tough year for the Port of Duluth-Superior.
According to figures from the Duluth Seaway Port Authority, total waterborne tonnage showed a 14.6 percent decrease from 2024 and was down 16 percent from the five year average.
Nearly all categories were down with iron ore shipments falling from 19.4 million tons last year to 16.5 million tons in 2025.
Overseas trade fell 30 percent and saw the lowest levels since before the St. Lawrence Seaway opened in 1959.
Grain tonnage dropped to levels not seen since 1890.
The only bright spot was a slight increase in the manufacturing, mining and energy sector cargo moving through Duluth’s Clure Marine Public Terminal.
During the off season, six vessels are wintering in the Twin Ports for maintenance before the opening of the Soo Locks on March 25th.
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