|Commercial facilities||Lock sites|
a Includes cargo-handling docks based upon a new database and only active U.S. Army Corps of Engineers-operated locks.
NOTES: Commercial facilities is comprised of Great Lakes, Inland, and Ocean facilities. Only federal and state governments own locks. Therefore, locks are not included in the commercial facilities total.
SOURCE: U.S. Army Corps of Engineers, The U.S. Waterway SystemTransportation Facts (Alexandria, VA: Annual Issues), Geographic Distribution of U.S. Waterway Facilities, available at http://www.iwr.usace.army.mil/ndc/factcard/fc09/factcard.htm as of July 2010.