Jean Lake Dam
Key Takeaway
Jean Lake Dam is classified as low hazard in Washington. It was completed in 1963 and is 63 years old. Its primary use is recreation.
Physical Details
| Dam Length | 70 ft |
| Dam Type | Earth |
| Max Storage | 123 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 41 cfs |
| Year Completed | 1963 (63 years old) |
| NID ID | WA00192 |
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
Twin Lakes Golf and Country Club
Private
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Low HazardFrequently Asked Questions
What is the hazard classification of Jean Lake Dam?
Jean Lake 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 Jean Lake Dam?
Jean Lake Dam is owned by Twin Lakes Golf and Country Club (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Jean Lake Dam built?
Jean Lake Dam was completed in 1963, making it 63 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 Jean Lake Dam?
Jean 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.