Mercer John A
Key Takeaway
Mercer John A is classified as low hazard in Oklahoma. It was completed in 1960 and is 66 years old. Its primary use is recreation.
Physical Details
| Dam Height | 27 ft (taller than 43% in OK) |
| Dam Length | 440 ft |
| Dam Type | Earth |
| Max Storage | 130 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 3 acres |
| Year Completed | 1960 (66 years old) |
| NID ID | OK12645 |
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
EARL DANE FARMER
Private
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Low Hazard 32 ftFrequently Asked Questions
What is the hazard classification of Mercer John A?
Mercer John A 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 Mercer John A?
Mercer John A is owned by EARL DANE FARMER (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Mercer John A built?
Mercer John A 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 Mercer John A?
Mercer John A serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Mercer John A?
Mercer John A 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 Mercer John A last inspected?
Mercer John A was last inspected on August 26, 2011. Inspection dates indicate when a formal review occurred, not the results of that inspection.