Trout Lake Storage Dam
Key Takeaway
Trout Lake Storage Dam is classified as high hazard in Washington. It was completed in 1929 and is 97 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 | 141 ft |
| Dam Type | Concrete |
| Max Storage | 1.5K acre-ft |
| Normal Storage | 1.4K acre-ft |
| Surface Area | 63 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 960 cfs |
| Year Completed | 1929 (97 years old) |
| NID ID | WA00202 |
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
Friday Harbor Town
Local Government
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Low HazardFrequently Asked Questions
What is the hazard classification of Trout Lake Storage Dam?
Trout Lake Storage 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 Trout Lake Storage Dam?
Trout Lake Storage Dam is owned by Friday Harbor Town (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Trout Lake Storage Dam built?
Trout Lake Storage Dam was completed in 1929, making it 97 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 Trout Lake Storage Dam?
Trout Lake Storage Dam serves the following purposes: Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Trout Lake Storage Dam last inspected?
Trout Lake Storage Dam was last inspected on October 26, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.