Pearson Reservoir
Key Takeaway
Pearson Reservoir is classified as low hazard in Oregon. It was completed in 1971 and is 55 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 64 ft (taller than 88.9% in OR) |
| Dam Length | 410 ft |
| Dam Type | Earth |
| Max Storage | 50 acre-ft |
| Normal Storage | 45 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 125 cfs |
| Year Completed | 1971 (55 years old) |
| NID ID | OR00430 |
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
DON PEARSON
Private
Nearby Dams
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Low Hazard 45 ftFrequently Asked Questions
What is the hazard classification of Pearson Reservoir?
Pearson 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 Pearson Reservoir?
Pearson Reservoir is owned by DON PEARSON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Pearson Reservoir built?
Pearson Reservoir was completed in 1971, making it 55 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 Pearson Reservoir?
Pearson 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 Pearson Reservoir?
Pearson Reservoir has a dam height of 64 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 Pearson Reservoir last inspected?
Pearson Reservoir was last inspected on October 22, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.