Upper Wilson Flowage
Key Takeaway
Upper Wilson Flowage is classified as low hazard in Wisconsin. It was completed in 1940 and is 86 years old. Its primary use is fish and wildlife pond.
Physical Details
| Dam Height | 7 ft (taller than 1% in WI) |
| Dam Length | 300 ft |
| Dam Type | Earth |
| Max Storage | 200 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 100 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 50 cfs |
| Year Completed | 1940 (86 years old) |
| NID ID | WI12823 |
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
USDA FS
Federal Government
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Low Hazard 9 ftFrequently Asked Questions
What is the hazard classification of Upper Wilson Flowage?
Upper Wilson Flowage 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 Wilson Flowage?
Upper Wilson Flowage is owned by USDA FS (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Upper Wilson Flowage built?
Upper Wilson Flowage was completed in 1940, making it 86 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 Wilson Flowage?
Upper Wilson Flowage serves the following purposes: Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Upper Wilson Flowage?
Upper Wilson Flowage has a dam height of 7 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 Wilson Flowage last inspected?
Upper Wilson Flowage was last inspected on April 11, 2012. Inspection dates indicate when a formal review occurred, not the results of that inspection.