Overholser
Key Takeaway
Overholser is classified as high hazard in Oklahoma. It was completed in 1919 and is 107 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 61 ft (taller than 97.7% in OK) |
| Dam Length | 17,100 ft |
| Dam Type | Earth |
| Max Storage | 31.1K acre-ft |
| Normal Storage | 15.0K acre-ft |
| Surface Area | 1,500 acres |
| Drainage Area | 738 sq mi |
| Max Discharge | 193,013 cfs |
| Year Completed | 1919 (107 years old) |
| NID ID | OK02537 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
OKLAHOMA CITY WATER UTILITIES TRUST
Local Government
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What is the hazard classification of Overholser?
Overholser is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Overholser?
Overholser is owned by OKLAHOMA CITY WATER UTILITIES TRUST (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Overholser built?
Overholser was completed in 1919, making it 107 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 Overholser?
Overholser serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Overholser?
Overholser has a dam height of 61 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 Overholser last inspected?
Overholser was last inspected on October 6, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.