Bayou Dupont No 11
Key Takeaway
Bayou Dupont No 11 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 | 31 ft (taller than 90% in LA) |
| Dam Length | 1,373 ft |
| Dam Type | Earth |
| Max Storage | 1.0K acre-ft |
| Normal Storage | 337 acre-ft |
| Surface Area | 48 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 1,355 cfs |
| Year Completed | 1959 (67 years old) |
| NID ID | LA00060 |
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
T. D. Nichols
Private
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Significant Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Bayou Dupont No 11?
Bayou Dupont No 11 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 11?
Bayou Dupont No 11 is owned by T. D. Nichols (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Bayou Dupont No 11 built?
Bayou Dupont No 11 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 11?
Bayou Dupont No 11 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 11?
Bayou Dupont No 11 has a dam height of 31 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 11 last inspected?
Bayou Dupont No 11 was last inspected on August 15, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.