Lac Shayne Dam
Key Takeaway
Lac Shayne Dam is classified as high hazard in Missouri. It was completed in 1979 and is 47 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 | 72 ft (taller than 98.6% in MO) |
| Dam Length | 1,600 ft |
| Dam Type | Earth |
| Max Storage | 2.5K acre-ft |
| Normal Storage | 2.5K acre-ft |
| Surface Area | 51 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 290 cfs |
| Year Completed | 1979 (47 years old) |
| Year Modified | 1995 |
| NID ID | MO31835 |
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
TERRE DU LAC POA
Local Government
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High Hazard 41 ftFrequently Asked Questions
What is the hazard classification of Lac Shayne Dam?
Lac Shayne 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 Lac Shayne Dam?
Lac Shayne Dam is owned by TERRE DU LAC POA (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Lac Shayne Dam built?
Lac Shayne Dam was completed in 1979, making it 47 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 Lac Shayne Dam?
Lac Shayne 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 Lac Shayne Dam?
Lac Shayne Dam has a dam height of 72 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 Lac Shayne Dam last inspected?
Lac Shayne Dam was last inspected on December 6, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.