Black Rock Orchards Dam
Key Takeaway
Black Rock Orchards Dam is classified as high hazard in Washington. It was completed in 1985 and is 41 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 | 600 ft |
| Dam Type | Earth |
| Max Storage | 515 acre-ft |
| Normal Storage | 392 acre-ft |
| Surface Area | 392 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 5,500 cfs |
| Year Completed | 1985 (41 years old) |
| NID ID | WA00506 |
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
Zine & Najiba Badissy
Private
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Significant HazardFrequently Asked Questions
What is the hazard classification of Black Rock Orchards Dam?
Black Rock Orchards 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 Black Rock Orchards Dam?
Black Rock Orchards Dam is owned by Zine & Najiba Badissy (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Black Rock Orchards Dam built?
Black Rock Orchards Dam was completed in 1985, making it 41 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 Black Rock Orchards Dam?
Black Rock Orchards Dam 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 Black Rock Orchards Dam last inspected?
Black Rock Orchards Dam was last inspected on June 8, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.