|Commodity||Short tons||Percent of total|
|Coal, lignite, and coal coke||32,619,778||39.6|
|Iron ore, iron, and steel waste and scrap||25,936,940||31.5|
|Sand, gravel, shells, clay, salt, and slag||12,746,646||15.5|
|Chemicals excluding fertilizers||2,193,585||2.7|
|Primary metal products||1,590,306||1.9|
|Primary nonmetal products||1,511,196||1.8|
|Non-ferrous ores and scrap||887,464||1.1|
|Food and food products||45,660||<0.1|
|Unknown and not elsewhere classified products2||1,104,241||1.3|
1 "Domestic" includes intrastate shipments.
2 To protect confidentiality if three or more vessel operating companies do not carry a particular commodity from a state of origin to a state of destination, then that commodity is reclassified to "unknown and not elsewhere classified products."
SOURCE FOR DATA ON THIS PAGE: U.S. Army Corps of Engineers, Waterborne Commerce Statistics Center, State to State and Region to Region Commodity Tonnages, Public Domain database, available at http://www.iwr.usace.army.mil/ as of Oct. 30, 2001.