Robert C. Byrd Lock and Dam
Official name	Robert C. Byrd Lock and Dam
Location	Ohio/West Virginia border
Coordinates	38°40′54″N 82°11′24″W / 38.6816°N 82.1900°W / 38.6816; -82.1900
Construction began	August 25, 1937
Opening date	October 1937
Construction cost	Lock Replacement $244,550,000 Dam Rehabilitation $46,700,000
Operator(s)	United States Army Corps of Engineers Huntington District
Dam and spillways
Type of dam	8 Roller gates
Impounds	Ohio River
Length	1,132 feet
Reservoir
Normal elevation	538 feet above sealevel

The Robert C. Byrd Lock and Dam, formerly the Gallipolis Lock and Dam, is the 10th lock and dam on the Ohio River, located 280 miles downstream from Pittsburgh. There are 4 locks: one for commercial barge traffic, 1,200 feet long by 110 feet wide; the auxiliary lock is 600 feet long by 110 feet wide; and there are 2 smaller parallel locks.^[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
• U.S. Army Corps of Engineers, Huntington District
• U.S. Army Corps of Engineers, Louisville District
• Historic American Engineering Record, Gallipolis Locks & Dam, Locks, Across Ohio River, Gallipolis, Mason County, WV