Clear Lake Dam
Key Takeaway
Clear Lake Dam is classified as high hazard in Washington. It was completed in 1888 and is 138 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 | 300 ft |
| Dam Type | Earth |
| Max Storage | 60 acre-ft |
| Normal Storage | 40 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 50 cfs |
| Year Completed | 1888 (138 years old) |
| NID ID | WA00230 |
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
Stemilt Irrigation District
Public Utility
Nearby Dams
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High HazardFrequently Asked Questions
What is the hazard classification of Clear Lake Dam?
Clear 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 Clear Lake Dam?
Clear Lake Dam is owned by Stemilt Irrigation District (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Clear Lake Dam built?
Clear Lake Dam was completed in 1888, making it 138 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 Clear Lake Dam?
Clear 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 Clear Lake Dam last inspected?
Clear Lake Dam was last inspected on August 22, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.