J-M Ranch
Key Takeaway
J-M Ranch is classified as low hazard in Oklahoma. It was completed in 1970 and is 56 years old. Its primary use is other.
Physical Details
| Dam Height | 22 ft (taller than 19.9% in OK) |
| Dam Length | 800 ft |
| Dam Type | Earth |
| Max Storage | 300 acre-ft |
| Normal Storage | 200 acre-ft |
| Surface Area | 30 acres |
| Max Discharge | 780 cfs |
| Year Completed | 1970 (56 years old) |
| NID ID | OK12194 |
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
MULHOLLAND HOA INC
Private
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Low Hazard 15 ftFrequently Asked Questions
What is the hazard classification of J-M Ranch?
J-M Ranch 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 J-M Ranch?
J-M Ranch is owned by MULHOLLAND HOA INC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was J-M Ranch built?
J-M Ranch was completed in 1970, making it 56 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 J-M Ranch?
J-M Ranch 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 J-M Ranch?
J-M Ranch has a dam height of 22 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 J-M Ranch last inspected?
J-M Ranch was last inspected on December 20, 2010. Inspection dates indicate when a formal review occurred, not the results of that inspection.