Helen
Key Takeaway
Helen is classified as low hazard in Wyoming. It was completed in 1966 and is 60 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 22 ft (taller than 28.8% in WY) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 83 acre-ft |
| Normal Storage | 41 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1966 (60 years old) |
| NID ID | WY01687 |
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
ROBINSON RANCH CO.
Private
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Low Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Helen?
Helen 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 Helen?
Helen is owned by ROBINSON RANCH CO. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Helen built?
Helen was completed in 1966, making it 60 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 Helen?
Helen serves the following purposes: Flood Risk Reduction, Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Helen?
Helen has a dam height of 22 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 Helen last inspected?
Helen was last inspected on May 4, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.