Paterson Ranch Reservoir
Key Takeaway
Paterson Ranch Reservoir is classified as high hazard in Washington. It was completed in 2010 and is 16 years old. Its primary use is irrigation. 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 Length | 1,510 ft |
| Dam Type | Earth |
| Max Storage | 50 acre-ft |
| Normal Storage | 40 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 5 cfs |
| Year Completed | 2010 (16 years old) |
| Year Modified | 2010 |
| NID ID | WA01995 |
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
Zirkle Fruit Company
Private
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Significant HazardFrequently Asked Questions
What is the hazard classification of Paterson Ranch Reservoir?
Paterson Ranch Reservoir 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 Paterson Ranch Reservoir?
Paterson Ranch Reservoir is owned by Zirkle Fruit Company (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Paterson Ranch Reservoir built?
Paterson Ranch Reservoir was completed in 2010, making it 16 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 Paterson Ranch Reservoir?
Paterson Ranch Reservoir serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Paterson Ranch Reservoir last inspected?
Paterson Ranch Reservoir was last inspected on October 26, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.