Payette Lake
Key Takeaway
Payette Lake is classified as significant hazard in Idaho. It was completed in 1943 and is 83 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 13 ft (taller than 5.1% in ID) |
| Dam Length | 168 ft |
| Normal Storage | 41.0K acre-ft |
| Surface Area | 5,337 acres |
| Drainage Area | 144 sq mi |
| Max Discharge | 7,330 cfs |
| Year Completed | 1943 (83 years old) |
| Year Modified | 2012 |
| NID ID | ID00244 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Private
Nearby Dams
Rio Vista
Valley, ID
Significant Hazard 20 ftJ-Ditch Effluent Lagoon
Valley, ID
High Hazard 42 ftLittle Payette Lake Main
Valley, ID
High Hazard 25 ftKnox Meadow
Valley, ID
Significant Hazard 19 ftBlackhawk Lake
Valley, ID
Significant Hazard 45 ftHancock
Adams, ID
Significant Hazard 29 ftLittle Payette Lake Dike
Valley, ID
Significant Hazard 11 ftSoulen Family Dam
Valley, ID
Low Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Payette Lake?
Payette Lake is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Payette Lake?
Payette Lake is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Payette Lake built?
Payette Lake was completed in 1943, making it 83 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 Payette Lake?
Payette Lake serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Payette Lake?
Payette Lake has a dam height of 13 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 Payette Lake last inspected?
Payette Lake was last inspected on September 17, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.