Allen Jack
Key Takeaway
Allen Jack is classified as low hazard in Oklahoma. It was completed in 1961 and is 65 years old. Its primary use is other.
Physical Details
| Dam Height | 15 ft (taller than 1% in OK) |
| Dam Length | 400 ft |
| Dam Type | Earth |
| Max Storage | 50 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 1 acres |
| Max Discharge | 1,400 cfs |
| Year Completed | 1961 (65 years old) |
| NID ID | OK12853 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
LONNIE AND GHISLAINE GRICE
Private
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Low Hazard 16 ftFrequently Asked Questions
What is the hazard classification of Allen Jack?
Allen Jack is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Allen Jack?
Allen Jack is owned by LONNIE AND GHISLAINE GRICE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Allen Jack built?
Allen Jack was completed in 1961, making it 65 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 Allen Jack?
Allen Jack serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Allen Jack?
Allen Jack has a dam height of 15 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 Allen Jack last inspected?
Allen Jack was last inspected on September 23, 2010. Inspection dates indicate when a formal review occurred, not the results of that inspection.