|Commodity||Short tons||Percent of total|
|Chemicals excluding fertilizers||3,041,621||32.9|
|Sand, gravel, shells, clay, salt, and slag||938,981||10.1|
|Primary metal products||304,358||3.3|
|Lumber, logs, wood chips, and pulp||161,707||1.7|
|Non-ferrous ores and scrap||140,439||1.5|
|Primary nonmetal products||97,097||1.0|
|Food and food products||94,842||1.0|
|Iron ore, iron, and steel waste and scrap||9||<0.1|
|Unknown and not elsewhere classified products2||2,620,610||28.3|
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.