Mann Rose Ann
Key Takeaway
Mann Rose Ann is classified as low hazard in Oklahoma. It was completed in 1960 and is 66 years old. Its primary use is other.
Physical Details
| Dam Height | 27 ft (taller than 43% in OK) |
| Dam Length | 390 ft |
| Dam Type | Earth |
| Max Storage | 95 acre-ft |
| Normal Storage | 70 acre-ft |
| Max Discharge | 990 cfs |
| Year Completed | 1960 (66 years old) |
| NID ID | OK12234 |
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
NODD & BETTY KENNEDY TRUST
Private
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What is the hazard classification of Mann Rose Ann?
Mann Rose Ann 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 Mann Rose Ann?
Mann Rose Ann is owned by NODD & BETTY KENNEDY TRUST (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mann Rose Ann built?
Mann Rose Ann was completed in 1960, making it 66 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 Mann Rose Ann?
Mann Rose Ann 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 Mann Rose Ann?
Mann Rose Ann 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.
When was Mann Rose Ann last inspected?
Mann Rose Ann was last inspected on July 19, 2005. Inspection dates indicate when a formal review occurred, not the results of that inspection.