Half Moon Lake
Key Takeaway
Half Moon Lake is classified as low hazard in Wisconsin. It was completed in 1977 and is 49 years old. Its primary use is recreation.
Physical Details
| Dam Height | 16 ft (taller than 48.8% in WI) |
| Dam Length | 200 ft |
| Dam Type | Gravity |
| Max Storage | 1.5K acre-ft |
| Normal Storage | 725 acre-ft |
| Surface Area | 132 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 58 cfs |
| Year Completed | 1977 (49 years old) |
| NID ID | WI00809 |
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
City Of Eau Claire
Local Government
Nearby Dams
Dells
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High Hazard 44 ftLake Hallie
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High Hazard 43 ftChippewa Falls
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High Hazard 68 ftFrequently Asked Questions
What is the hazard classification of Half Moon Lake?
Half Moon 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 Half Moon Lake?
Half Moon Lake is owned by City Of Eau Claire (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Half Moon Lake built?
Half Moon Lake was completed in 1977, making it 49 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 Half Moon Lake?
Half Moon 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 Half Moon Lake?
Half Moon Lake has a dam height of 16 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 Half Moon Lake last inspected?
Half Moon Lake was last inspected on August 13, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.