Wirth Reservoir
Key Takeaway
Wirth Reservoir is classified as low hazard in Oregon. It was completed in 1966 and is 60 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 36 ft (taller than 72.6% in OR) |
| Dam Length | 545 ft |
| Dam Type | Earth |
| Max Storage | 59 acre-ft |
| Normal Storage | 59 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 100 cfs |
| Year Completed | 1966 (60 years old) |
| NID ID | OR00466 |
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
MARY LOUISE WIRTH
Private
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Low Hazard 10 ftFrequently Asked Questions
What is the hazard classification of Wirth Reservoir?
Wirth Reservoir 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 Wirth Reservoir?
Wirth Reservoir is owned by MARY LOUISE WIRTH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Wirth Reservoir built?
Wirth Reservoir was completed in 1966, making it 60 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 Wirth Reservoir?
Wirth 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 Wirth Reservoir?
Wirth Reservoir has a dam height of 36 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 Wirth Reservoir last inspected?
Wirth Reservoir was last inspected on April 26, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.