Jonesville Lock and Dam
Key Takeaway
Jonesville Lock and Dam is classified as significant hazard in Louisiana. It was completed in 1972 and is 54 years old. Its primary use is navigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Length | 920 ft |
| Dam Type | Gravity |
| Max Storage | 149.3K acre-ft |
| Normal Storage | 123.7K acre-ft |
| Surface Area | 7,120 acres |
| Drainage Area | 24,200 sq mi |
| Max Discharge | 176,000 cfs |
| Year Completed | 1972 (54 years old) |
| NID ID | LA00175 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
USACE - Vicksburg District
Federal Government
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Jonesville Lock and Dam?
Jonesville Lock and Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Jonesville Lock and Dam?
Jonesville Lock and Dam is owned by USACE - Vicksburg District (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Jonesville Lock and Dam built?
Jonesville Lock and Dam was completed in 1972, making it 54 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 Jonesville Lock and Dam?
Jonesville Lock and Dam serves the following purposes: Navigation, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Jonesville Lock and Dam last inspected?
Jonesville Lock and Dam was last inspected on February 16, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.