Upper Post Lake
Key Takeaway
Upper Post Lake is classified as low hazard in Wisconsin. It was completed in 1932 and is 94 years old. Its primary use is recreation.
Physical Details
| Dam Height | 10 ft (taller than 17.3% in WI) |
| Dam Length | 200 ft |
| Dam Type | Gravity |
| Max Storage | 13.0K acre-ft |
| Normal Storage | 4.0K acre-ft |
| Surface Area | 1,134 acres |
| Drainage Area | 122 sq mi |
| Max Discharge | 1,820 cfs |
| Year Completed | 1932 (94 years old) |
| NID ID | WI00698 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Post Lake Protection & Rehabilitation District
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Upper Post Lake?
Upper Post Lake is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Upper Post Lake?
Upper Post Lake is owned by Post Lake Protection & Rehabilitation District (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Upper Post Lake built?
Upper Post Lake was completed in 1932, making it 94 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 Upper Post Lake?
Upper Post Lake serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Upper Post Lake?
Upper Post Lake has a dam height of 10 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 Upper Post Lake last inspected?
Upper Post Lake was last inspected on October 19, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.