Wilson Lake
Key Takeaway
Wilson Lake is classified as significant hazard in Idaho. It was completed in 1909 and is 117 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 31 ft (taller than 58.6% in ID) |
| Dam Length | 700 ft |
| Max Storage | 4.6K acre-ft |
| Normal Storage | 4.6K acre-ft |
| Surface Area | 504 acres |
| Drainage Area | 135 sq mi |
| Max Discharge | 1,278 cfs |
| Year Completed | 1909 (117 years old) |
| Year Modified | 1991 |
| NID ID | ID00020 |
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
Frequently Asked Questions
What is the hazard classification of Wilson Lake?
Wilson 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 Wilson Lake?
Wilson Lake is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Wilson Lake built?
Wilson Lake was completed in 1909, making it 117 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 Wilson Lake?
Wilson Lake 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 Wilson Lake?
Wilson Lake has a dam height of 31 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 Wilson Lake last inspected?
Wilson Lake was last inspected on November 7, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.