Old Hickory Lock and Dam
Key Takeaway
Old Hickory Lock and Dam is classified as high hazard in Tennessee. It was completed in 1954 and is 72 years old. Its primary use is navigation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Length | 3,750 ft |
| Dam Type | Concrete |
| Max Storage | 545.0K acre-ft |
| Normal Storage | 420.0K acre-ft |
| Surface Area | 22,500 acres |
| Drainage Area | 11,674 sq mi |
| Max Discharge | 236,000 cfs |
| Year Completed | 1954 (72 years old) |
| NID ID | TN03702 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
USACE - Nashville District
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Old Hickory Lock and Dam?
Old Hickory Lock and Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Old Hickory Lock and Dam?
Old Hickory Lock and Dam is owned by USACE - Nashville District (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Old Hickory Lock and Dam built?
Old Hickory Lock and Dam was completed in 1954, making it 72 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Old Hickory Lock and Dam?
Old Hickory Lock and Dam serves the following purposes: Navigation, Other, Recreation, Hydroelectric, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Old Hickory Lock and Dam last inspected?
Old Hickory Lock and Dam was last inspected on June 13, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.