Jellystone Park Dam
Key Takeaway
Jellystone Park Dam is classified as high hazard in Missouri. It was completed in 1976 and is 50 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 | 27 ft (taller than 49% in MO) |
| Dam Type | Earth |
| Max Storage | 87 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 80 sq mi |
| Year Completed | 1976 (50 years old) |
| NID ID | MO31503 |
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
JELLYSTONE PARK
Private
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High Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Jellystone Park Dam?
Jellystone Park 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 Jellystone Park Dam?
Jellystone Park Dam is owned by JELLYSTONE PARK (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Jellystone Park Dam built?
Jellystone Park Dam was completed in 1976, making it 50 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 Jellystone Park Dam?
Jellystone Park 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 Jellystone Park Dam?
Jellystone Park Dam has a dam height of 27 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.