Hemenway Valley Flood Control Dam
Key Takeaway
Hemenway Valley Flood Control Dam is classified as high hazard in Nevada. It was completed in 1994 and is 32 years old. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 10 ft (taller than 9.7% in NV) |
| Dam Length | 825 ft |
| Dam Type | Earth |
| Max Storage | 22 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 2,340 cfs |
| Year Completed | 1994 (32 years old) |
| NID ID | NV10161 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
CITY OF BOULDER
Local Government
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High Hazard 19 ftFrequently Asked Questions
What is the hazard classification of Hemenway Valley Flood Control Dam?
Hemenway Valley Flood Control Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Hemenway Valley Flood Control Dam?
Hemenway Valley Flood Control Dam is owned by CITY OF BOULDER (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hemenway Valley Flood Control Dam built?
Hemenway Valley Flood Control Dam was completed in 1994, making it 32 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 Hemenway Valley Flood Control Dam?
Hemenway Valley Flood Control Dam 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 Hemenway Valley Flood Control Dam?
Hemenway Valley Flood Control 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 Hemenway Valley Flood Control Dam last inspected?
Hemenway Valley Flood Control Dam was last inspected on February 27, 2024. Inspection dates indicate when a formal review occurred, not the results of that inspection.