Stonehenge #1 Dam
Key Takeaway
Stonehenge #1 Dam is classified as high hazard in Missouri. It was completed in 1990 and is 36 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 | 41 ft (taller than 90.4% in MO) |
| Dam Length | 360 ft |
| Dam Type | Earth |
| Max Storage | 82 acre-ft |
| Normal Storage | 64 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 538 cfs |
| Year Completed | 1990 (36 years old) |
| Year Modified | 1992 |
| NID ID | MO31939 |
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
Private
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What is the hazard classification of Stonehenge #1 Dam?
Stonehenge #1 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 Stonehenge #1 Dam?
Stonehenge #1 Dam is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Stonehenge #1 Dam built?
Stonehenge #1 Dam was completed in 1990, making it 36 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 Stonehenge #1 Dam?
Stonehenge #1 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 Stonehenge #1 Dam?
Stonehenge #1 Dam has a dam height of 41 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 Stonehenge #1 Dam last inspected?
Stonehenge #1 Dam was last inspected on May 5, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.