Mayowood Lake
Key Takeaway
Mayowood Lake is classified as low hazard in Minnesota. It was completed in 1920 and is 106 years old. Its primary use is other.
Physical Details
| Dam Height | 20 ft (taller than 60.7% in MN) |
| Dam Length | 140 ft |
| Dam Type | Gravity |
| Max Storage | 352 acre-ft |
| Normal Storage | 220 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 147 sq mi |
| Max Discharge | 5,479 cfs |
| Year Completed | 1920 (106 years old) |
| NID ID | MN00364 |
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
County of Olmsted
Local Government
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Low Hazard 26 ftFrequently Asked Questions
What is the hazard classification of Mayowood Lake?
Mayowood 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 Mayowood Lake?
Mayowood Lake is owned by County of Olmsted (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mayowood Lake built?
Mayowood Lake was completed in 1920, making it 106 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 Mayowood Lake?
Mayowood Lake serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mayowood Lake?
Mayowood Lake 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 Mayowood Lake last inspected?
Mayowood Lake was last inspected on June 27, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.