City of Lewistown Dam
Key Takeaway
City of Lewistown Dam is classified as high hazard in Missouri. It was completed in 1965 and is 61 years old. Its primary use is flood risk reduction. 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 | 25 ft (taller than 23.5% in MO) |
| Dam Type | Earth |
| Max Storage | 468 acre-ft |
| Normal Storage | 292 acre-ft |
| Surface Area | 35 acres |
| Drainage Area | 400 sq mi |
| Year Completed | 1965 (61 years old) |
| NID ID | MO10349 |
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
CITY OF LEWISTOWN
Local Government
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Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of City of Lewistown Dam?
City of Lewistown 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 City of Lewistown Dam?
City of Lewistown Dam is owned by CITY OF LEWISTOWN (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was City of Lewistown Dam built?
City of Lewistown Dam was completed in 1965, making it 61 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 City of Lewistown Dam?
City of Lewistown Dam serves the following purposes: Flood Risk Reduction, Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is City of Lewistown Dam?
City of Lewistown Dam has a dam height of 25 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.