Mosley Reservoir
Key Takeaway
Mosley Reservoir is classified as low hazard in Oregon. It was completed in 1950 and is 76 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 20 ft (taller than 30% in OR) |
| Dam Length | 120 ft |
| Dam Type | Earth |
| Max Storage | 260 acre-ft |
| Normal Storage | 180 acre-ft |
| Surface Area | 26 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 19 cfs |
| Year Completed | 1950 (76 years old) |
| NID ID | OR00175 |
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
BLAKE DENNIS
Private
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Low Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Mosley Reservoir?
Mosley 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 Mosley Reservoir?
Mosley Reservoir is owned by BLAKE DENNIS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mosley Reservoir built?
Mosley Reservoir was completed in 1950, making it 76 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 Mosley Reservoir?
Mosley 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 Mosley Reservoir?
Mosley Reservoir has a dam height of 20 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 Mosley Reservoir last inspected?
Mosley Reservoir was last inspected on April 2, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.