Glen Hills 6
Key Takeaway
Glen Hills 6 is classified as high hazard in Wisconsin. It was completed in 1975 and is 51 years old. Its primary use is flood risk reduction. 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 | 30 ft (taller than 81.6% in WI) |
| Dam Length | 635 ft |
| Dam Type | Earth |
| Max Storage | 191 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 0 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 2,095 cfs |
| Year Completed | 1975 (51 years old) |
| NID ID | WI00874 |
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
St. Croix County
Local Government
Nearby Dams
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Low Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Glen Hills 6?
Glen Hills 6 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 Glen Hills 6?
Glen Hills 6 is owned by St. Croix County (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Glen Hills 6 built?
Glen Hills 6 was completed in 1975, making it 51 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 Glen Hills 6?
Glen Hills 6 serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Glen Hills 6?
Glen Hills 6 has a dam height of 30 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 Glen Hills 6 last inspected?
Glen Hills 6 was last inspected on May 5, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.