Ben Johnson Dam
Key Takeaway
Ben Johnson Dam is classified as low hazard in Louisiana. It was completed in 1933 and is 93 years old. Its primary use is recreation.
Physical Details
| Dam Height | 10 ft (taller than 9.7% in LA) |
| Dam Length | 550 ft |
| Dam Type | Earth |
| Max Storage | 77 acre-ft |
| Normal Storage | 52 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 350 cfs |
| Year Completed | 1933 (93 years old) |
| NID ID | LA00486 |
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
Nabors Properties
Private
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Low Hazard 15 ftFrequently Asked Questions
What is the hazard classification of Ben Johnson Dam?
Ben Johnson 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 Ben Johnson Dam?
Ben Johnson Dam is owned by Nabors Properties (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Ben Johnson Dam built?
Ben Johnson Dam was completed in 1933, making it 93 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 Ben Johnson Dam?
Ben Johnson 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 Ben Johnson Dam?
Ben Johnson Dam has a dam height of 10 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 Ben Johnson Dam last inspected?
Ben Johnson Dam was last inspected on March 4, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.