Radar Lake Dam
Key Takeaway
Radar Lake Dam is classified as high hazard in Washington. It was completed in 1973 and is 53 years old. Its primary use is recreation. 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 Length | 2,500 ft |
| Dam Type | Earth |
| Max Storage | 90 acre-ft |
| Normal Storage | 68 acre-ft |
| Surface Area | 44 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 5 cfs |
| Year Completed | 1973 (53 years old) |
| Year Modified | 2019 |
| NID ID | WA00186 |
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
Radar Lake Holding Trust
Private
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High HazardFrequently Asked Questions
What is the hazard classification of Radar Lake Dam?
Radar Lake Dam 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 Radar Lake Dam?
Radar Lake Dam is owned by Radar Lake Holding Trust (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Radar Lake Dam built?
Radar Lake Dam was completed in 1973, making it 53 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 Radar Lake Dam?
Radar Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Radar Lake Dam last inspected?
Radar Lake Dam was last inspected on October 19, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.