Siem Lake Dam
Key Takeaway
Siem Lake Dam is classified as significant hazard in Missouri. It was completed in 1973 and is 53 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 23 ft (taller than 18% in MO) |
| Dam Length | 600 ft |
| Dam Type | Earth |
| Max Storage | 135 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 106 sq mi |
| Max Discharge | 1,200 cfs |
| Year Completed | 1973 (53 years old) |
| NID ID | MO31427 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
MARVIN SIEM
Private
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Low Hazard 34 ftFrequently Asked Questions
What is the hazard classification of Siem Lake Dam?
Siem Lake Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Siem Lake Dam?
Siem Lake Dam is owned by MARVIN SIEM (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Siem Lake Dam built?
Siem Lake Dam was completed in 1973, making it 53 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 Siem Lake Dam?
Siem Lake Dam serves the following purposes: Flood Risk Reduction, Fish And Wildlife Pond, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Siem Lake Dam?
Siem Lake Dam has a dam height of 23 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.