Osborn Grant
Key Takeaway
Osborn Grant is classified as low hazard in Oklahoma. It was completed in 1978 and is 48 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 25 ft (taller than 29.9% in OK) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 187 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 4 acres |
| Max Discharge | 1,630 cfs |
| Year Completed | 1978 (48 years old) |
| NID ID | OK13123 |
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
RAY & CLARA STEELE
Private
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What is the hazard classification of Osborn Grant?
Osborn Grant 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 Osborn Grant?
Osborn Grant is owned by RAY & CLARA STEELE (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Osborn Grant built?
Osborn Grant was completed in 1978, making it 48 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 Osborn Grant?
Osborn Grant serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Osborn Grant?
Osborn Grant has a dam height of 25 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 Osborn Grant last inspected?
Osborn Grant was last inspected on August 9, 2011. Inspection dates indicate when a formal review occurred, not the results of that inspection.