South Zumbro Kr-3
Key Takeaway
South Zumbro Kr-3 is classified as high hazard in Minnesota. It was completed in 1993 and is 33 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 | 20 ft (taller than 60.7% in MN) |
| Dam Length | 1,320 ft |
| Dam Type | Earth |
| Max Storage | 257 acre-ft |
| Normal Storage | 112 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 6,500 cfs |
| Year Completed | 1993 (33 years old) |
| NID ID | MN00994 |
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 Rochester
Local Government
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Low Hazard 28 ftFrequently Asked Questions
What is the hazard classification of South Zumbro Kr-3?
South Zumbro Kr-3 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 South Zumbro Kr-3?
South Zumbro Kr-3 is owned by City of Rochester (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was South Zumbro Kr-3 built?
South Zumbro Kr-3 was completed in 1993, making it 33 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 South Zumbro Kr-3?
South Zumbro Kr-3 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 South Zumbro Kr-3?
South Zumbro Kr-3 has a dam height of 20 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 South Zumbro Kr-3 last inspected?
South Zumbro Kr-3 was last inspected on May 10, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.