Steffen Brothers Reservoir Dam
Key Takeaway
Steffen Brothers Reservoir Dam is classified as high hazard in Washington. It was completed in 1947 and is 79 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 | 500 ft |
| Dam Type | Earth |
| Max Storage | 34 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1947 (79 years old) |
| NID ID | WA01018 |
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
Kyle Mathison Orchards, Inc.
Private
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High HazardFrequently Asked Questions
What is the hazard classification of Steffen Brothers Reservoir Dam?
Steffen Brothers Reservoir 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 Steffen Brothers Reservoir Dam?
Steffen Brothers Reservoir Dam is owned by Kyle Mathison Orchards, Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Steffen Brothers Reservoir Dam built?
Steffen Brothers Reservoir Dam was completed in 1947, making it 79 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 Steffen Brothers Reservoir Dam?
Steffen Brothers Reservoir 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 Steffen Brothers Reservoir Dam last inspected?
Steffen Brothers Reservoir Dam was last inspected on October 20, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.