R. James Unruh Reservoir
Key Takeaway
R. James Unruh Reservoir is classified as high hazard in Oklahoma. It was completed in 1950 and is 76 years old. Its primary use is flood risk reduction. 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 | 15 ft (taller than 1% in OK) |
| Dam Length | 13,300 ft |
| Dam Type | Earth |
| Max Storage | 100 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 325 acres |
| Year Completed | 1950 (76 years old) |
| NID ID | OK13300 |
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
CITY OF TULSA
Local Government
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What is the hazard classification of R. James Unruh Reservoir?
R. James Unruh Reservoir 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 R. James Unruh Reservoir?
R. James Unruh Reservoir is owned by CITY OF TULSA (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was R. James Unruh Reservoir built?
R. James Unruh Reservoir was completed in 1950, making it 76 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 R. James Unruh Reservoir?
R. James Unruh Reservoir 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 R. James Unruh Reservoir?
R. James Unruh Reservoir has a dam height of 15 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 R. James Unruh Reservoir last inspected?
R. James Unruh Reservoir was last inspected on February 11, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.