Harrisonville City Lake Dam
Key Takeaway
Harrisonville City Lake Dam is classified as high hazard in Missouri. It was completed in 1971 and is 55 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 | 55 ft (taller than 96.3% in MO) |
| Dam Length | 1,900 ft |
| Dam Type | Earth |
| Max Storage | 13.5K acre-ft |
| Normal Storage | 11.3K acre-ft |
| Surface Area | 398 acres |
| Drainage Area | 15 sq mi |
| Max Discharge | 28,862 cfs |
| Year Completed | 1971 (55 years old) |
| Year Modified | 1989 |
| NID ID | MO20077 |
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 HARRISONVILLE
Local Government
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High Hazard 19 ftFrequently Asked Questions
What is the hazard classification of Harrisonville City Lake Dam?
Harrisonville City 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 Harrisonville City Lake Dam?
Harrisonville City Lake Dam is owned by CITY OF HARRISONVILLE (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Harrisonville City Lake Dam built?
Harrisonville City Lake Dam was completed in 1971, making it 55 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 Harrisonville City Lake Dam?
Harrisonville City Lake Dam serves the following purposes: Recreation, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Harrisonville City Lake Dam?
Harrisonville City Lake Dam has a dam height of 55 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 Harrisonville City Lake Dam last inspected?
Harrisonville City Lake Dam was last inspected on March 30, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.