Markland Locks and Dam, Navigation locks and hydroelectric dam on the Ohio River between Kentucky and Indiana, United States.
The Markland facility includes two lock chambers measuring 1,200 feet and 600 feet long, enabling vessels to navigate different water levels on the Ohio River.
Construction of the locks began in March 1956, with operations starting in May 1959, while the dam construction continued until completion in June 1964.
The facility represents a critical element in the Ohio River navigation system, supporting regional commerce and connecting communities across state borders.
The U.S. Army Corps of Engineers maintains the navigation infrastructure while Duke Energy Indiana operates the hydroelectric power generation station.
The dam spans 425 meters across the Ohio River and generates 81 megavolt amperes of hydroelectric power through its integrated power station.
Location: Kentucky
Location: Indiana
Inception: 1959
Length: 425 m
GPS coordinates: 38.77478,-84.96439
Latest update: November 28, 2025 14:29
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