Haystack
Key Takeaway
Haystack is classified as high hazard in Oregon. It was completed in 1956 and is 70 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 | 105 ft (taller than 94.5% in OR) |
| Dam Length | 1,200 ft |
| Dam Type | Earth |
| Max Storage | 7.4K acre-ft |
| Normal Storage | 5.6K acre-ft |
| Surface Area | 280 acres |
| Drainage Area | 10 sq mi |
| Year Completed | 1956 (70 years old) |
| NID ID | OR00287 |
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
RECLAMATION
Federal Government
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Significant Hazard 29 ftFrequently Asked Questions
What is the hazard classification of Haystack?
Haystack 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 Haystack?
Haystack is owned by RECLAMATION (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Haystack built?
Haystack was completed in 1956, making it 70 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 Haystack?
Haystack 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 Haystack?
Haystack has a dam height of 105 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 Haystack last inspected?
Haystack was last inspected on June 10, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.