Mckay Dam
Key Takeaway
Mckay Dam is classified as low hazard in Washington. It was completed in 1961 and is 65 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Length | 173 ft |
| Dam Type | Earth |
| Max Storage | 120 acre-ft |
| Normal Storage | 19 acre-ft |
| Surface Area | 19 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 39 cfs |
| Year Completed | 1961 (65 years old) |
| NID ID | WA00018 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
POLSON FAMILY LLC, E & J
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Mckay Dam?
Mckay Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Mckay Dam?
Mckay Dam is owned by POLSON FAMILY LLC, E & J (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mckay Dam built?
Mckay Dam was completed in 1961, making it 65 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 Dam?
Mckay Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.