Minnesota Department of Transportation

511 Travel Info

Ports and Waterways

Commercial waterways

The Mississippi River System

The Mississippi River System stretches over 195 miles in Minnesota and supports four port areas whose combined 2016 tonnage was 14.7 million net tons. The River accounts for over 50 percent of Minnesota’s agricultural exports.

Minnesota’s largest river tonnage commodities are agricultural products such as corn, soybeans and wheat. In 2016, Minnesota shipped over 7 million tons of grain down the river. River ports also handle other dry commodities such as fertilizer, cement, sand and gravel, salt, coal, steel and scrap metals for recycling. Liquid products include petroleum, caustic soda, vegetable oils, molasses and anhydrous ammonia.

The Mississippi River Navigation System is maintained by the U.S. Corps of Engineers. They dredge the width and depth of the channel to accommodate 9-foot deep barges, and they operate the 29 locks and dams on the Upper Mississippi. The locks are also used by recreational boaters at no cost. The commercial barge operators on the River pay a user fee of 29 cents per gallon of fuel purchased. These dollars are used to pay for half of major federal lock structure improvements.

Minnesota
Annual River Port Tonnage (Net Tons)
Port 2016 2015 2014 2013 2012 2011 2010
2009
Minneapolis 0 223,871 573,168 715,599 671,691 645,445 592,404
545,840
St. Paul 6,887,022 6,887,022 6,315,039 5,273,301 5,551,737 5,247,992 5,160,120
5,071,864
Savage 2,123,201 2,123,201 1,704,930 1,405,947 1,921,603 1,844,711 2,411,361
2,777,677
Red Wing 684,935 684,935 433,840 532,891 836,497 924,060 807,021
735,417
Winona 1,707,910 1,707,910 1,700,883 1,258,783 1,697,955 1,969,712 1,922,462
1,672,630
Totals 11,403,068 11,626,940 10,727,859 9,186,521 10,679,483 10,631,920 10,893,368 10,803,428

•Annual tonnages will vary due to seasonal flooding, freight rates and foreign grain demand

Lake Superior / Great Lakes / St. Lawrence Seaway

Minnesota has three active ports on Lake Superior including Silver Bay, Two Harbors and Duluth/Superior. Their combined waterway tonnage for 2016 was nearly 50 million tons. World steel production is improving, which is increasing taconite demand on the Great Lakes. Great Lakes taconite shipped from Minnesota amounted to 33.4 million tons in 2016. Taconite amounted to 68% of Minnesota’s Great Lakes tonnage in 2016. Taconite is mined in northeast Minnesota and shipped via the Great Lakes to steel mills in Indiana, Ohio and Pennsylvania.

Western coal is the second leading commodity shipped from Duluth/Superior in 2016 at 10 million tons.

Other commodities handled by the Port of Duluth/Superior include grain, cement, salt, steel, limestone, and wind generator components.

The U.S. Corps of Engineers operates three of the 16 locks on the Great Lakes/St. Lawrence Seaway and maintains a 29-foot deep channel throughout this system. The Canadian government operates and maintains the other 13 locks.

Ships that operate only on the Great Lakes are called “Lakers”. Some of the Lakers range to over 1,000 feet long, 105 feet wide and have a capacity of 65,000-70,000 net tons at 26’6” draft – the maximum draft allowed. Since 1999, lake levels on the Great Lakes System have been low, primarily due to drought, which has restricted ship tonnage by as much as 6,000 tons per trip. Less tonnage per trip results in higher freight costs per ton, both to the carrier and to the shipper.

Minnesota
Annual Great Lakes Tonnage (Net Tons)
Port 2016 2015 2014 2013 2012 2011 2010
2009
Duluth/Superior 30,098,753 32,867,924 37,552,802 36,701,017 36,673,052 37,101,554 39,804,806
31,210,918
Two Harbors 15,431,524 15,769,132 14,141,124 16,791,032 16,547,843 16,070,740 13,892,225
6,222,014
Silver Bay 3,399,616 7,911,368 4,986,169 4,459,217 7,142,154 5,818,286   6,617,247
3,384,622
Taconite Harbor 208,870 629,500 622,890 480,383 657,700 806,000  663,934
709,108
Totals 49,138,763 57,177,924 57,302,985 58,431,649 61,020,749 59,796,580 60,978,212 41,526,662

•Annual tonnages will vary due to low water, ice conditions and commodity demand