Nantachie Lake Dam
Key Takeaway
Nantachie Lake Dam is classified as low hazard in Louisiana. It was completed in 1964 and is 62 years old. Its primary use is recreation.
Physical Details
| Dam Height | 37 ft (taller than 94.5% in LA) |
| Dam Length | 1,150 ft |
| Dam Type | Earth |
| Max Storage | 35.5K acre-ft |
| Normal Storage | 11.2K acre-ft |
| Surface Area | 1,580 acres |
| Drainage Area | 84 sq mi |
| Max Discharge | 19,600 cfs |
| Year Completed | 1964 (62 years old) |
| NID ID | LA00025 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
State of Louisiana
Local Government
Nearby Dams
Nantachie Lake Dam No. 2
Grant, LA
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High Hazard 36 ftFrequently Asked Questions
What is the hazard classification of Nantachie Lake Dam?
Nantachie Lake Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Nantachie Lake Dam?
Nantachie Lake Dam is owned by State of Louisiana (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Nantachie Lake Dam built?
Nantachie Lake Dam was completed in 1964, making it 62 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 Nantachie Lake Dam?
Nantachie Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Nantachie Lake Dam?
Nantachie Lake Dam has a dam height of 37 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Nantachie Lake Dam last inspected?
Nantachie Lake Dam was last inspected on August 30, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.