Bayou Dupont No 22
Key Takeaway
Bayou Dupont No 22 is classified as significant hazard in Louisiana. It was completed in 1959 and is 67 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 30 ft (taller than 87.3% in LA) |
| Dam Length | 885 ft |
| Dam Type | Earth |
| Max Storage | 591 acre-ft |
| Normal Storage | 197 acre-ft |
| Surface Area | 34 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 3,200 cfs |
| Year Completed | 1959 (67 years old) |
| NID ID | LA00051 |
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
Evans Family LLC
Private
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What is the hazard classification of Bayou Dupont No 22?
Bayou Dupont No 22 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 Bayou Dupont No 22?
Bayou Dupont No 22 is owned by Evans Family LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Bayou Dupont No 22 built?
Bayou Dupont No 22 was completed in 1959, making it 67 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 Bayou Dupont No 22?
Bayou Dupont No 22 serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Bayou Dupont No 22?
Bayou Dupont No 22 has a dam height of 30 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 Bayou Dupont No 22 last inspected?
Bayou Dupont No 22 was last inspected on July 2, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.