Cottonwood
Key Takeaway
Cottonwood is classified as high hazard in Oregon. It was completed in 1962 and is 64 years old. Its primary use is irrigation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 60 ft (taller than 87.8% in OR) |
| Dam Length | 780 ft |
| Dam Type | Earth |
| Max Storage | 11.4K acre-ft |
| Normal Storage | 8.8K acre-ft |
| Surface Area | 300 acres |
| Drainage Area | 30 sq mi |
| Max Discharge | 2,800 cfs |
| Year Completed | 1962 (64 years old) |
| NID ID | OR00535 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
LAKEVIEW WATER USERS INC.
Local Government
Nearby Dams
Muddy Creek Reservoir
Lake, OR
Significant Hazard 25 ftAndy Hill Reservoir
Lake, OR
Low Hazard 21 ftFenimore, Clyde Reservoir
Lake, OR
Low Hazard 15 ftCottonwood Meadows
Lake, OR
Significant Hazard 25 ftMicke
Lake, OR
Significant Hazard 20 ftWillow Creek Reservoir (Lake)
Lake, OR
Low Hazard 21 ftWastewater Lagoon #4
Lake, OR
Low Hazard 15 ftDrews
Lake, OR
High Hazard 60 ftFrequently Asked Questions
What is the hazard classification of Cottonwood?
Cottonwood is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Cottonwood?
Cottonwood is owned by LAKEVIEW WATER USERS INC. (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Cottonwood built?
Cottonwood was completed in 1962, making it 64 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 Cottonwood?
Cottonwood 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 Cottonwood?
Cottonwood has a dam height of 60 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 Cottonwood last inspected?
Cottonwood was last inspected on August 26, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.