Dresser No. 11
Key Takeaway
Dresser No. 11 is classified as high hazard in Missouri. It was completed in 1975 and is 51 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 | 90 ft (taller than 99.4% in MO) |
| Dam Length | 500 ft |
| Dam Type | Other |
| Max Storage | 533 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 4,200 cfs |
| Year Completed | 1975 (51 years old) |
| Year Modified | 2000 |
| NID ID | MO31422 |
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
BIG RIVER LAND CO.
Private
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High Hazard 27 ftFrequently Asked Questions
What is the hazard classification of Dresser No. 11?
Dresser No. 11 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 Dresser No. 11?
Dresser No. 11 is owned by BIG RIVER LAND CO. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Dresser No. 11 built?
Dresser No. 11 was completed in 1975, making it 51 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 Dresser No. 11?
Dresser No. 11 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 Dresser No. 11?
Dresser No. 11 has a dam height of 90 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 Dresser No. 11 last inspected?
Dresser No. 11 was last inspected on June 16, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.