Mckay
Key Takeaway
Mckay is classified as high hazard in Oregon. It was completed in 1926 and is 100 years old. Its primary use is flood risk reduction. 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 | 165 ft (taller than 97.4% in OR) |
| Dam Length | 2,700 ft |
| Dam Type | Earth |
| Max Storage | 83.3K acre-ft |
| Normal Storage | 67.8K acre-ft |
| Surface Area | 1,200 acres |
| Drainage Area | 186 sq mi |
| Year Completed | 1926 (100 years old) |
| NID ID | OR00583 |
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
Frequently Asked Questions
What is the hazard classification of Mckay?
Mckay 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 Mckay?
Mckay is owned by RECLAMATION (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mckay built?
Mckay was completed in 1926, making it 100 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 Mckay?
Mckay serves the following purposes: Flood Risk Reduction, Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mckay?
Mckay has a dam height of 165 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 Mckay last inspected?
Mckay was last inspected on July 9, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.