Queen Mary Dam
Key Takeaway
Queen Mary Dam is classified as high hazard in Missouri. It was completed in 1959 and is 67 years old. Its primary use is other. 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 | 66 ft (taller than 98.1% in MO) |
| Dam Length | 850 ft |
| Dam Type | Earth |
| Max Storage | 8.4K acre-ft |
| Normal Storage | 8.4K acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,953 cfs |
| Year Completed | 1959 (67 years old) |
| NID ID | MO31015 |
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
THE DOE RUN COMPANY
Private
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What is the hazard classification of Queen Mary Dam?
Queen Mary 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 Queen Mary Dam?
Queen Mary Dam is owned by THE DOE RUN COMPANY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Queen Mary Dam built?
Queen Mary Dam was completed in 1959, making it 67 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 Queen Mary Dam?
Queen Mary Dam serves the following purposes: Other, Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Queen Mary Dam?
Queen Mary Dam has a dam height of 66 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 Queen Mary Dam last inspected?
Queen Mary Dam was last inspected on July 17, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.