The Holt Lock and Dam is a lock built on the Black Warrior River near Holt, Alabama in Tuscaloosa County.

Opening for navigation in 1966, it served as a replacement for a series locks and dams built in the early 20th century.

[1] The lock and dam impounds Holt Lake 19 miles (31 km) upstream to the John Hollis Bankhead Lock and Dam.

[1] Located on the northern bank are hydroelectric turbines operated by the Alabama Power Company.

[2] The United States Army Corps of Engineers owns the dam facility; Alabama Power owns and operates the generating plant.