Rock Lake
Key Takeaway
Rock Lake is classified as low hazard in Wisconsin. It was completed in 1929 and is 97 years old. Its primary use is recreation.
Physical Details
| Dam Height | 8 ft (taller than 5.5% in WI) |
| Dam Length | 100 ft |
| Dam Type | Gravity |
| Max Storage | 350 acre-ft |
| Normal Storage | 300 acre-ft |
| Surface Area | 44 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 15 cfs |
| Year Completed | 1929 (97 years old) |
| NID ID | WI00268 |
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
Valentine, Linda
Private
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High Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Rock Lake?
Rock 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 Rock Lake?
Rock Lake is owned by Valentine, Linda (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Rock Lake built?
Rock Lake 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 Rock Lake?
Rock 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 Rock Lake?
Rock Lake has a dam height of 8 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 Rock Lake last inspected?
Rock Lake was last inspected on August 15, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.