Osseo
Key Takeaway
Osseo is classified as high hazard in Wisconsin. It was completed in 1860 and is 166 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 | 14 ft (taller than 40.1% in WI) |
| Dam Length | 451 ft |
| Dam Type | Gravity |
| Max Storage | 100 acre-ft |
| Normal Storage | 45 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 39 sq mi |
| Max Discharge | 2,000 cfs |
| Year Completed | 1860 (166 years old) |
| NID ID | WI10621 |
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
City Of Osseo
Local Government
Nearby Dams
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Low Hazard 19 ftFrequently Asked Questions
What is the hazard classification of Osseo?
Osseo 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 Osseo?
Osseo is owned by City Of Osseo (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Osseo built?
Osseo was completed in 1860, making it 166 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 Osseo?
Osseo 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 Osseo?
Osseo has a dam height of 14 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 Osseo last inspected?
Osseo was last inspected on May 29, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.