Minnetonka Lake Dam
Key Takeaway
Minnetonka Lake Dam is classified as high hazard in Missouri. It was completed in 1957 and is 69 years old. Its primary use is tailings. 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 | 74 ft (taller than 98.8% in MO) |
| Dam Length | 1,100 ft |
| Dam Type | Other |
| Max Storage | 2.5K acre-ft |
| Normal Storage | 2.1K acre-ft |
| Surface Area | 90 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 2,300 cfs |
| Year Completed | 1957 (69 years old) |
| NID ID | MO30727 |
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
LAKE FOREST FARMS
Private
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High Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Minnetonka Lake Dam?
Minnetonka Lake Dam 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 Minnetonka Lake Dam?
Minnetonka Lake Dam is owned by LAKE FOREST FARMS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Minnetonka Lake Dam built?
Minnetonka Lake Dam was completed in 1957, making it 69 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 Minnetonka Lake Dam?
Minnetonka Lake Dam serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Minnetonka Lake Dam?
Minnetonka Lake Dam has a dam height of 74 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 Minnetonka Lake Dam last inspected?
Minnetonka Lake Dam was last inspected on November 10, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.