Isom No 3
Key Takeaway
Isom No 3 is classified as low hazard in Oklahoma. It was completed in 1968 and is 58 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 20 ft (taller than 11.5% in OK) |
| Dam Length | 1,040 ft |
| Dam Type | Earth |
| Max Storage | 150 acre-ft |
| Normal Storage | 110 acre-ft |
| Surface Area | 19 acres |
| Max Discharge | 438 cfs |
| Year Completed | 1968 (58 years old) |
| NID ID | OK00061 |
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
BRUCE ISOM
Private
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Low Hazard 22 ftFrequently Asked Questions
What is the hazard classification of Isom No 3?
Isom No 3 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 Isom No 3?
Isom No 3 is owned by BRUCE ISOM (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Isom No 3 built?
Isom No 3 was completed in 1968, making it 58 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 Isom No 3?
Isom No 3 serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Isom No 3?
Isom No 3 has a dam height of 20 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 Isom No 3 last inspected?
Isom No 3 was last inspected on September 10, 1999. Inspection dates indicate when a formal review occurred, not the results of that inspection.