Jones Dam
Key Takeaway
Jones Dam is classified as low hazard in Washington. It was completed in 1977 and is 49 years old. Its primary use is irrigation.
Physical Details
| Dam Length | 366 ft |
| Dam Type | Earth |
| Max Storage | 100 acre-ft |
| Normal Storage | 42 acre-ft |
| Surface Area | 22 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 610 cfs |
| Year Completed | 1977 (49 years old) |
| NID ID | WA00368 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Gene & JaneJones
Private
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Low HazardFrequently Asked Questions
What is the hazard classification of Jones Dam?
Jones Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Jones Dam?
Jones Dam is owned by Gene & JaneJones (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Jones Dam built?
Jones Dam was completed in 1977, making it 49 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 Jones Dam?
Jones Dam serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.