Leader Lake Dam
Key Takeaway
Leader Lake Dam is classified as high hazard in Washington. It was completed in 1910 and is 116 years old. Its primary use is irrigation. 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 | 350 ft |
| Dam Type | Earth |
| Max Storage | 7.7K acre-ft |
| Normal Storage | 5.9K acre-ft |
| Surface Area | 185 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 470 cfs |
| Year Completed | 1910 (116 years old) |
| NID ID | WA00223 |
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
Pleasant Valley Water Users Assoc
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Leader Lake Dam?
Leader 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 Leader Lake Dam?
Leader Lake Dam is owned by Pleasant Valley Water Users Assoc (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Leader Lake Dam built?
Leader Lake Dam was completed in 1910, making it 116 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 Leader Lake Dam?
Leader Lake Dam serves the following purposes: Irrigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
When was Leader Lake Dam last inspected?
Leader Lake Dam was last inspected on October 9, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.