Rio Mount Dam
Key Takeaway
Rio Mount Dam is classified as low hazard in Washington. It was completed in 1979 and is 47 years old. Its primary use is recreation.
Physical Details
| Dam Length | 300 ft |
| Dam Type | Earth |
| Max Storage | 60 acre-ft |
| Normal Storage | 25 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 80 cfs |
| Year Completed | 1979 (47 years old) |
| NID ID | WA01328 |
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
HoaHau
Private
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Low HazardFrequently Asked Questions
What is the hazard classification of Rio Mount Dam?
Rio Mount 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 Rio Mount Dam?
Rio Mount Dam is owned by HoaHau (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Rio Mount Dam built?
Rio Mount Dam was completed in 1979, making it 47 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 Rio Mount Dam?
Rio Mount Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.