Deary Reservoir
Key Takeaway
Deary Reservoir is classified as low hazard in Oregon. It was completed in 1937 and is 89 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 27 ft (taller than 52.6% in OR) |
| Dam Length | 330 ft |
| Dam Type | Earth |
| Max Storage | 360 acre-ft |
| Normal Storage | 360 acre-ft |
| Surface Area | 52 acres |
| Drainage Area | 100 sq mi |
| Max Discharge | 220 cfs |
| Year Completed | 1937 (89 years old) |
| NID ID | OR00086 |
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
A.C. LEE
Private
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Low HazardFrequently Asked Questions
What is the hazard classification of Deary Reservoir?
Deary 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 Deary Reservoir?
Deary Reservoir is owned by A.C. LEE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Deary Reservoir built?
Deary Reservoir was completed in 1937, making it 89 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 Deary Reservoir?
Deary 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 Deary Reservoir?
Deary Reservoir has a dam height of 27 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 Deary Reservoir last inspected?
Deary Reservoir was last inspected on October 28, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.