Olson Reservoir (Mark)
Key Takeaway
Olson Reservoir (Mark) is classified as significant hazard in Oregon. It was completed in 1988 and is 38 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 25 ft (taller than 43.9% in OR) |
| Dam Length | 360 ft |
| Dam Type | Earth |
| Max Storage | 46 acre-ft |
| Normal Storage | 46 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 50 cfs |
| Year Completed | 1988 (38 years old) |
| NID ID | OR00724 |
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
HVR INC.
Private
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Low Hazard 17 ftFrequently Asked Questions
What is the hazard classification of Olson Reservoir (Mark)?
Olson Reservoir (Mark) 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 Olson Reservoir (Mark)?
Olson Reservoir (Mark) is owned by HVR INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Olson Reservoir (Mark) built?
Olson Reservoir (Mark) was completed in 1988, making it 38 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 Olson Reservoir (Mark)?
Olson Reservoir (Mark) 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 Olson Reservoir (Mark)?
Olson Reservoir (Mark) has a dam height of 25 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 Olson Reservoir (Mark) last inspected?
Olson Reservoir (Mark) was last inspected on April 9, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.