Harpold Reservoir
Key Takeaway
Harpold Reservoir is classified as low hazard in Oregon. It was completed in 1909 and is 117 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 58 ft (taller than 87.1% in OR) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 750 acre-ft |
| Normal Storage | 750 acre-ft |
| Surface Area | 120 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 300 cfs |
| Year Completed | 1909 (117 years old) |
| NID ID | OR00240 |
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
JOHN MCFALL
Private
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Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Harpold Reservoir?
Harpold 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 Harpold Reservoir?
Harpold Reservoir is owned by JOHN MCFALL (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Harpold Reservoir built?
Harpold Reservoir was completed in 1909, making it 117 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 Harpold Reservoir?
Harpold 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 Harpold Reservoir?
Harpold Reservoir has a dam height of 58 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 Harpold Reservoir last inspected?
Harpold Reservoir was last inspected on October 21, 2014. Inspection dates indicate when a formal review occurred, not the results of that inspection.