H & H Reservoir Dam No 1
Key Takeaway
H & H Reservoir Dam No 1 is classified as high hazard in Washington. It was completed in 1926 and is 100 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 | 800 ft |
| Dam Type | Earth |
| Max Storage | 60 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 100 cfs |
| Year Completed | 1926 (100 years old) |
| NID ID | WA01013 |
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
Custom Orchards, Inc.
Private
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High HazardFrequently Asked Questions
What is the hazard classification of H & H Reservoir Dam No 1?
H & H Reservoir Dam No 1 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 H & H Reservoir Dam No 1?
H & H Reservoir Dam No 1 is owned by Custom Orchards, Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was H & H Reservoir Dam No 1 built?
H & H Reservoir Dam No 1 was completed in 1926, making it 100 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 H & H Reservoir Dam No 1?
H & H Reservoir Dam No 1 serves the following purposes: Irrigation, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was H & H Reservoir Dam No 1 last inspected?
H & H Reservoir Dam No 1 was last inspected on October 26, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.