Jersey
Key Takeaway
Jersey is classified as high hazard in Wisconsin. It was completed in 1929 and is 97 years old. Its primary use is hydroelectric. 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 | 34 ft (taller than 87.2% in WI) |
| Dam Length | 1,395 ft |
| Dam Type | Gravity |
| Max Storage | 1.8K acre-ft |
| Normal Storage | 1.6K acre-ft |
| Surface Area | 709 acres |
| Drainage Area | 557 sq mi |
| Max Discharge | 24,000 cfs |
| Year Completed | 1929 (97 years old) |
| NID ID | WI00745 |
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
Wisconsin Public Service Corporation
Public Utility
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Low Hazard 11 ftFrequently Asked Questions
What is the hazard classification of Jersey?
Jersey 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 Jersey?
Jersey is owned by Wisconsin Public Service Corporation (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Jersey built?
Jersey was completed in 1929, making it 97 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 Jersey?
Jersey serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Jersey?
Jersey has a dam height of 34 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 Jersey last inspected?
Jersey was last inspected on July 21, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.