Did you know about half of all wheat grown in the U.S. is exported? USDA’s Economic Research Service (ERS) estimates 21 million metric tons of wheat was shipped out of U.S. ports in 2022, totaling $8.49 billion. The Mississippi and Columbia-Snake rivers help push grain by barge to export facilities in the Gulf and Pacific Northwest. However, the region between these two rivers instead relies heavily on rail to move grain, with USDA finding 50% to 60% of all wheat exports from 2014 to 2019 were moved to ports by rail.