Updegrave
Key Takeaway
Updegrave is classified as high hazard in Oregon. It was completed in 1957 and is 69 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 | 30 ft (taller than 58.4% in OR) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 172 acre-ft |
| Normal Storage | 172 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 90 cfs |
| Year Completed | 1957 (69 years old) |
| NID ID | OR00491 |
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
WOODS, BILL
Private
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High Hazard 84 ftFrequently Asked Questions
What is the hazard classification of Updegrave?
Updegrave 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 Updegrave?
Updegrave is owned by WOODS, BILL (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Updegrave built?
Updegrave was completed in 1957, making it 69 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 Updegrave?
Updegrave 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 Updegrave?
Updegrave has a dam height of 30 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 Updegrave last inspected?
Updegrave was last inspected on November 6, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.