|Commodity||Short tons||Percent of total|
|Sand, gravel, shells, clay, salt, and slag||5,848,428||18.5|
|Iron ore, iron, and steel waste and scrap||4,869,094||15.4|
|Primary metal products||1,609,237||5.1|
|Food and food products||1,486,184||4.7|
|Coal, lignite, and coal coke||1,460,741||4.6|
|Primary nonmetal products||1,270,897||4.0|
|Nonferrous ores and scrap||710,201||2.2|
|Chemicals excluding fertilizers||638,721||2.0|
|Lumber, logs, wood chips, and pulp||584,732||1.8|
|Unknown and not elsewhere classified products2||6,850,937||21.7|
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.wrsc.usace.army.mil/ndc/datapdom.htm as of Oct. 30, 2001.