Roche Pomona Dam
Key Takeaway
Roche Pomona Dam is classified as high hazard in Washington. It was completed in 1995 and is 31 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 | 1,150 ft |
| Dam Type | Earth |
| Max Storage | 48 acre-ft |
| Normal Storage | 30 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1995 (31 years old) |
| NID ID | WA01918 |
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
Roche Fruit Company
Private
Nearby Dams
Tree Top Selah Wastewater Lagoon
Yakima, WA
Low HazardRoza Diversion
Kittitas, WA
Low Hazard 32 ftSelah Aerated Lagoon
Yakima, WA
High HazardDel Monte Foods INC
Yakima, WA
High HazardSelah Home Ranch Reservoir
Yakima, WA
High HazardSelah Naches Ranch Reservoir
Yakima, WA
High HazardChiawana Gleed Ranch Dam
Yakima, WA
High HazardGamache Dam
Yakima, WA
High HazardFrequently Asked Questions
What is the hazard classification of Roche Pomona Dam?
Roche Pomona 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 Roche Pomona Dam?
Roche Pomona Dam is owned by Roche Fruit Company (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Roche Pomona Dam built?
Roche Pomona Dam was completed in 1995, making it 31 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 Roche Pomona Dam?
Roche Pomona 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 Roche Pomona Dam last inspected?
Roche Pomona Dam was last inspected on June 7, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.