|Commodity||Short tons||Percent of total|
|Coal, lignite, and coal coke||32,674,427||36.8|
|Iron ore, iron, and steel waste and scrap||27,377,778||30.8|
|Sand, gravel, shells, clay, salt, and slag||14,632,371||16.5|
|Primary metal products||2,779,970||3.1|
|Chemicals excluding fertilizers||2,404,538||2.7|
|Primary nonmetal products||2,242,724||2.5|
|Non-ferrous ores and scrap||1,076,539||1.2|
|Food and food products||326,069||0.4|
|Lumber, logs, wood chips, and pulp||12||<0.1|
|Unknown and not elsewhere classified products2||1,104,241||1.2|
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.