Little Payette Lake Main
Key Takeaway
Little Payette Lake Main is classified as high hazard in Idaho. It was completed in 1926 and is 100 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 Height | 25 ft (taller than 43.7% in ID) |
| Dam Length | 225 ft |
| Normal Storage | 10.3K acre-ft |
| Surface Area | 1,450 acres |
| Drainage Area | 64 sq mi |
| Max Discharge | 3,000 cfs |
| Year Completed | 1926 (100 years old) |
| Year Modified | 1952 |
| NID ID | ID00243 |
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
Private
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Significant Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Little Payette Lake Main?
Little Payette Lake Main 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 Little Payette Lake Main?
Little Payette Lake Main is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Little Payette Lake Main built?
Little Payette Lake Main 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 Little Payette Lake Main?
Little Payette Lake Main serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Little Payette Lake Main?
Little Payette Lake Main has a dam height of 25 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Little Payette Lake Main last inspected?
Little Payette Lake Main was last inspected on September 17, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.