Hemlock
Key Takeaway
Hemlock is classified as low hazard in Wisconsin. It was completed in 1964 and is 62 years old. Its primary use is recreation.
Physical Details
| Dam Height | 11 ft (taller than 24.3% in WI) |
| Dam Length | 1,800 ft |
| Dam Type | Earth |
| Max Storage | 85 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 45 cfs |
| Year Completed | 1964 (62 years old) |
| NID ID | WI01055 |
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
Sauk County
Local Government
Nearby Dams
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Low Hazard 29 ftFrequently Asked Questions
What is the hazard classification of Hemlock?
Hemlock 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 Hemlock?
Hemlock is owned by Sauk County (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hemlock built?
Hemlock was completed in 1964, making it 62 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 Hemlock?
Hemlock 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 Hemlock?
Hemlock has a dam height of 11 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 Hemlock last inspected?
Hemlock was last inspected on June 16, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.