Freight Facts and Figures 2010
Figure 3-14. Tonnage on Highways, Railroad, and Inland Waterways: 2007
Trucks carry most of the tonnage and value of freight in the United States, but railroads and waterways carry significant volumes over long distances. The largest volume of freight transported by rail is coal moving between the Powder River Basin in Wyoming and the Midwest, while the principal inland waterways volume movement is along the Lower Mississippi River.
Highways: U.S. Department of Transportation, Federal Highway Administration, Freight Analysis Framework, version 3.1, 2010.
Rail: Based on Surface Transportation Board, Annual Carload Waybill Sample and rail freight flow assignments done by Oak Ridge National Laboratory.
Inland Waterways: U.S. Army Corps of Engineers (USACE), Annual Vessel Operating Activity and Lock Performance Monitoring System data, as processed for USACE by the Tennessee Valley Authority; and USACE, Institute for Water Resources, Waterborne Foreign Trade Data. Water flow assignments were done by Oak Ridge National Laboratory.
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