Willow Island Lock and Dam is the 7th Lock and dam on the Ohio River, located 162 miles downstream of Pittsburgh. There are two locks, one for commercial barge traffic that's 1,200 feet long by 110 feet wide, and the auxiliary lock is 600 feet long by 110 feet wide.^[1]

• List of locks and dams of the Ohio River
• List of locks and dams of the Upper Mississippi River

• U.S. Army Corps of Engineers, Pittsburgh District Archived 2007-11-25 at the Wayback Machine
• U.S. Army Corps of Engineers, Huntington District
• U.S. Army Corps of Engineers, Louisville District Archived 2008-06-10 at the Wayback Machine