|Commodity||Short tons||Percent of total|
|Sand, gravel, shells, clay, salt, and slag||1,749,424||15.2|
|Chemicals excluding fertilizers||900,334||7.8|
|Lumber, logs, wood chips, and pulp||322,472||2.8|
|Food and food products||285,782||2.5|
|Primary metal products||69,953||0.6|
|Non-ferrous ores and scrap||49,284||0.4|
|Unknown and not elsewhere classified products2||3,468,704||30.1|
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.