Yost Reservoir
Key Takeaway
Yost Reservoir is classified as low hazard in Oklahoma. It was completed in 1920 and is 106 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 18 ft (taller than 7.5% in OK) |
| Dam Length | 1,000 ft |
| Dam Type | Earth |
| Max Storage | 260 acre-ft |
| Normal Storage | 126 acre-ft |
| Surface Area | 26 acres |
| Max Discharge | 4,740 cfs |
| Year Completed | 1920 (106 years old) |
| NID ID | OK10064 |
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
YOST LAKE COUNTRY CLUB
Private
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High Hazard 32 ftFrequently Asked Questions
What is the hazard classification of Yost Reservoir?
Yost Reservoir 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 Yost Reservoir?
Yost Reservoir is owned by YOST LAKE COUNTRY CLUB (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Yost Reservoir built?
Yost Reservoir was completed in 1920, making it 106 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 Yost Reservoir?
Yost 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 Yost Reservoir?
Yost Reservoir has a dam height of 18 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 Yost Reservoir last inspected?
Yost Reservoir was last inspected on December 3, 2003. Inspection dates indicate when a formal review occurred, not the results of that inspection.