Firnstahl Dam
Key Takeaway
Firnstahl Dam is classified as low hazard in Washington. It was completed in 1965 and is 61 years old. Its primary use is irrigation.
Physical Details
| Dam Length | 150 ft |
| Dam Type | Earth |
| Max Storage | 62 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 50 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 35 cfs |
| Year Completed | 1965 (61 years old) |
| NID ID | WA00549 |
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
Firnstahl Family Ltd Ptnshp
Private
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Low HazardFrequently Asked Questions
What is the hazard classification of Firnstahl Dam?
Firnstahl 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 Firnstahl Dam?
Firnstahl Dam is owned by Firnstahl Family Ltd Ptnshp (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Firnstahl Dam built?
Firnstahl Dam was completed in 1965, making it 61 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 Firnstahl Dam?
Firnstahl Dam serves the following purposes: Irrigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Firnstahl Dam last inspected?
Firnstahl Dam was last inspected on July 8, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.