Upper Petit Jean Wid Site 9
Key Takeaway
Upper Petit Jean Wid Site 9 is classified as high hazard in Arkansas. It was completed in 1978 and is 48 years old. Its primary use is other. 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 | 75 ft (taller than 93.9% in AR) |
| Dam Length | 1,255 ft |
| Dam Type | Earth |
| Max Storage | 29.2K acre-ft |
| Normal Storage | 4.7K acre-ft |
| Surface Area | 315 acres |
| Drainage Area | 31 sq mi |
| Max Discharge | 43,657 cfs |
| Year Completed | 1978 (48 years old) |
| NID ID | AR01322 |
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 BOONEVILLE
Local Government
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Significant Hazard 27 ftFrequently Asked Questions
What is the hazard classification of Upper Petit Jean Wid Site 9?
Upper Petit Jean Wid Site 9 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 Upper Petit Jean Wid Site 9?
Upper Petit Jean Wid Site 9 is owned by CITY OF BOONEVILLE (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Upper Petit Jean Wid Site 9 built?
Upper Petit Jean Wid Site 9 was completed in 1978, making it 48 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 Upper Petit Jean Wid Site 9?
Upper Petit Jean Wid Site 9 serves the following purposes: Other, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Upper Petit Jean Wid Site 9?
Upper Petit Jean Wid Site 9 has a dam height of 75 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 Upper Petit Jean Wid Site 9 last inspected?
Upper Petit Jean Wid Site 9 was last inspected on October 8, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.