Iron Mountain Lake Dam
Key Takeaway
Iron Mountain Lake Dam is classified as high hazard in Missouri. It was completed in 1847 and is 179 years old. Its primary use is recreation. 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 | 16 ft (taller than 4.1% in MO) |
| Dam Type | Rockfill |
| Max Storage | 599 acre-ft |
| Normal Storage | 280 acre-ft |
| Surface Area | 70 acres |
| Drainage Area | 3,775 sq mi |
| Year Completed | 1847 (179 years old) |
| NID ID | MO30057 |
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
IRON MTN LAKE OWNR ASSOC
Private
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High Hazard 29 ftFrequently Asked Questions
What is the hazard classification of Iron Mountain Lake Dam?
Iron Mountain 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 Iron Mountain Lake Dam?
Iron Mountain Lake Dam is owned by IRON MTN LAKE OWNR ASSOC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Iron Mountain Lake Dam built?
Iron Mountain Lake Dam was completed in 1847, making it 179 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 Iron Mountain Lake Dam?
Iron Mountain Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Iron Mountain Lake Dam?
Iron Mountain Lake Dam has a dam height of 16 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 Iron Mountain Lake Dam last inspected?
Iron Mountain Lake Dam was last inspected on February 23, 1981. Inspection dates indicate when a formal review occurred, not the results of that inspection.