Upper Petit Jean Wid Site 5
Key Takeaway
Upper Petit Jean Wid Site 5 is classified as high hazard in Arkansas. It was completed in 1986 and is 40 years old. Its primary use is flood risk reduction. 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 | 61 ft (taller than 89.8% in AR) |
| Dam Length | 985 ft |
| Dam Type | Earth |
| Max Storage | 3.2K acre-ft |
| Normal Storage | 192 acre-ft |
| Surface Area | 22 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 8,135 cfs |
| Year Completed | 1986 (40 years old) |
| NID ID | AR01421 |
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
UPPER PETIT JEAN WATERSHED IMPROVEMENT DISTRICT
Local Government
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Low HazardFrequently Asked Questions
What is the hazard classification of Upper Petit Jean Wid Site 5?
Upper Petit Jean Wid Site 5 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 5?
Upper Petit Jean Wid Site 5 is owned by UPPER PETIT JEAN WATERSHED IMPROVEMENT DISTRICT (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Upper Petit Jean Wid Site 5 built?
Upper Petit Jean Wid Site 5 was completed in 1986, making it 40 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 5?
Upper Petit Jean Wid Site 5 serves the following purposes: Flood Risk Reduction. 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 5?
Upper Petit Jean Wid Site 5 has a dam height of 61 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 5 last inspected?
Upper Petit Jean Wid Site 5 was last inspected on December 28, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.