Hendren Dam
Key Takeaway
Hendren Dam is classified as high hazard in Missouri. It was completed in 1956 and is 70 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 | 20 ft (taller than 7.1% in MO) |
| Dam Type | Earth |
| Max Storage | 96 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 190 sq mi |
| Year Completed | 1956 (70 years old) |
| NID ID | MO10043 |
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
HALLMARK CARDS,INC
Private
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High Hazard 47 ftFrequently Asked Questions
What is the hazard classification of Hendren Dam?
Hendren 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 Hendren Dam?
Hendren Dam is owned by HALLMARK CARDS,INC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Hendren Dam built?
Hendren Dam was completed in 1956, making it 70 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 Hendren Dam?
Hendren 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 Hendren Dam?
Hendren Dam has a dam height of 20 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 Hendren Dam last inspected?
Hendren Dam was last inspected on March 27, 1981. Inspection dates indicate when a formal review occurred, not the results of that inspection.