Osborne Creek
Key Takeaway
Osborne Creek is classified as high hazard in Oregon. It was completed in 1964 and is 62 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 | 730 ft |
| Dam Type | Earth |
| Max Storage | 775 acre-ft |
| Normal Storage | 438 acre-ft |
| Surface Area | 35 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 1,725 cfs |
| Year Completed | 1964 (62 years old) |
| NID ID | OR00401 |
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
CASCADE RANCHES, CHICAGO 60614
Private
Nearby Dams
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High Hazard 90 ftOwen
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Low Hazard 31 ftBradshaw
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Significant Hazard 47 ftFrog Pond #1
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Significant Hazard 26 ftStanley, Charles W. Reservoir
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Low Hazard 41 ftBradshaw 2
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Significant Hazard 20 ftLake Creek
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High Hazard 77 ftFrequently Asked Questions
What is the hazard classification of Osborne Creek?
Osborne Creek 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 Osborne Creek?
Osborne Creek is owned by CASCADE RANCHES, CHICAGO 60614 (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Osborne Creek built?
Osborne Creek was completed in 1964, making it 62 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 Osborne Creek?
Osborne Creek 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 Osborne Creek?
Osborne Creek 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 Osborne Creek last inspected?
Osborne Creek was last inspected on July 13, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.