Hannas Run Dam
Key Takeaway
Hannas Run Dam is classified as low hazard in Louisiana. It was completed in 1908 and is 118 years old. Its primary use is recreation.
Physical Details
| Dam Height | 15 ft (taller than 33.1% in LA) |
| Dam Length | 1,100 ft |
| Dam Type | Earth |
| Max Storage | 10.7K acre-ft |
| Normal Storage | 9.7K acre-ft |
| Surface Area | 1,393 acres |
| Drainage Area | 12 sq mi |
| Max Discharge | 100 cfs |
| Year Completed | 1908 (118 years old) |
| NID ID | LA00264 |
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
Gewesee and Wyoming, Inc.
Private
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Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Hannas Run Dam?
Hannas Run 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 Hannas Run Dam?
Hannas Run Dam is owned by Gewesee and Wyoming, Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hannas Run Dam built?
Hannas Run Dam was completed in 1908, making it 118 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 Hannas Run Dam?
Hannas Run 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 Hannas Run Dam?
Hannas Run Dam has a dam height of 15 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 Hannas Run Dam last inspected?
Hannas Run Dam was last inspected on March 17, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.