Petit Jean Water Supply
Key Takeaway
Petit Jean Water Supply is classified as significant hazard in Arkansas. It was completed in 1959 and is 67 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 29 ft (taller than 56.5% in AR) |
| Dam Length | 600 ft |
| Dam Type | Gravity |
| Max Storage | 210 acre-ft |
| Normal Storage | 90 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,600 cfs |
| Year Completed | 1959 (67 years old) |
| NID ID | AR00349 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
ARKANSAS PARKS AND TOURISM
State Government
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Low Hazard 24 ftFrequently Asked Questions
What is the hazard classification of Petit Jean Water Supply?
Petit Jean Water Supply is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Petit Jean Water Supply?
Petit Jean Water Supply is owned by ARKANSAS PARKS AND TOURISM (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Petit Jean Water Supply built?
Petit Jean Water Supply was completed in 1959, making it 67 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 Petit Jean Water Supply?
Petit Jean Water Supply serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Petit Jean Water Supply?
Petit Jean Water Supply has a dam height of 29 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 Petit Jean Water Supply last inspected?
Petit Jean Water Supply was last inspected on November 27, 2010. Inspection dates indicate when a formal review occurred, not the results of that inspection.