Youngs Lake New Inlet Dam
Key Takeaway
Youngs Lake New Inlet Dam is classified as high hazard in Washington. It was completed in 1926 and is 100 years old. Its primary use is water supply. 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 Type | Earth |
| Max Storage | 35.5K acre-ft |
| Normal Storage | 33.8K acre-ft |
| Surface Area | 690 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1926 (100 years old) |
| NID ID | WA00415 |
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
Seattle Public Utilities
Public Utility
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High HazardFrequently Asked Questions
What is the hazard classification of Youngs Lake New Inlet Dam?
Youngs Lake New Inlet 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 Youngs Lake New Inlet Dam?
Youngs Lake New Inlet Dam is owned by Seattle Public Utilities (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Youngs Lake New Inlet Dam built?
Youngs Lake New Inlet Dam 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 Youngs Lake New Inlet Dam?
Youngs Lake New Inlet Dam serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Youngs Lake New Inlet Dam last inspected?
Youngs Lake New Inlet Dam was last inspected on November 7, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.