Maple Lake
Key Takeaway
Maple Lake is classified as high hazard in Wisconsin. It was completed in 1941 and is 85 years old. Its primary use is recreation. 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 | 12 ft (taller than 30.4% in WI) |
| Dam Length | 85 ft |
| Dam Type | Gravity |
| Max Storage | 1.3K acre-ft |
| Normal Storage | 900 acre-ft |
| Surface Area | 144 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 170 cfs |
| Year Completed | 1941 (85 years old) |
| NID ID | WI00282 |
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
Town of Three Lakes
Local Government
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Significant Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Maple Lake?
Maple Lake 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 Maple Lake?
Maple Lake is owned by Town of Three Lakes (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Maple Lake built?
Maple Lake was completed in 1941, making it 85 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 Maple Lake?
Maple 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 Maple Lake?
Maple Lake has a dam height of 12 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 Maple Lake last inspected?
Maple Lake was last inspected on July 29, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.