Woolfolk Reservoir
Key Takeaway
Woolfolk Reservoir is classified as significant hazard in Oregon. It was completed in 1955 and is 71 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 47 ft (taller than 82.9% in OR) |
| Dam Length | 1,180 ft |
| Dam Type | Earth |
| Max Storage | 700 acre-ft |
| Normal Storage | 480 acre-ft |
| Surface Area | 34 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,862 cfs |
| Year Completed | 1955 (71 years old) |
| NID ID | OR00295 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
IRA V. WOOLFOLK
Private
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Significant Hazard 47 ftFrequently Asked Questions
What is the hazard classification of Woolfolk Reservoir?
Woolfolk Reservoir is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Woolfolk Reservoir?
Woolfolk Reservoir is owned by IRA V. WOOLFOLK (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Woolfolk Reservoir built?
Woolfolk Reservoir was completed in 1955, making it 71 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 Woolfolk Reservoir?
Woolfolk Reservoir serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Woolfolk Reservoir?
Woolfolk Reservoir has a dam height of 47 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Woolfolk Reservoir last inspected?
Woolfolk Reservoir was last inspected on December 30, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.