Harper Lake Dam
Key Takeaway
Harper Lake Dam is classified as high hazard in Missouri. It was completed in 1960 and is 66 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 | 25 ft (taller than 23.5% in MO) |
| Dam Type | Earth |
| Max Storage | 468 acre-ft |
| Normal Storage | 225 acre-ft |
| Surface Area | 35 acres |
| Drainage Area | 260 sq mi |
| Year Completed | 1960 (66 years old) |
| NID ID | MO20053 |
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
RAYMOND HARPER
Private
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High Hazard 30 ftFrequently Asked Questions
What is the hazard classification of Harper Lake Dam?
Harper 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 Harper Lake Dam?
Harper Lake Dam is owned by RAYMOND HARPER (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Harper Lake Dam built?
Harper Lake Dam was completed in 1960, making it 66 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 Harper Lake Dam?
Harper 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 Harper Lake Dam?
Harper Lake 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.