Sub-Penitentiary Lake
Key Takeaway
Sub-Penitentiary Lake is classified as low hazard in Oklahoma. It was completed in 1940 and is 86 years old. Its primary use is recreation.
Physical Details
| Dam Height | 40 ft (taller than 83.4% in OK) |
| Dam Length | 795 ft |
| Dam Type | Earth |
| Max Storage | 933 acre-ft |
| Normal Storage | 840 acre-ft |
| Surface Area | 90 acres |
| Max Discharge | 1,934 cfs |
| Year Completed | 1940 (86 years old) |
| NID ID | OK00110 |
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
STATE OF OKLAHOMA
State Government
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Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Sub-Penitentiary Lake?
Sub-Penitentiary Lake 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 Sub-Penitentiary Lake?
Sub-Penitentiary Lake is owned by STATE OF OKLAHOMA (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sub-Penitentiary Lake built?
Sub-Penitentiary Lake was completed in 1940, making it 86 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 Sub-Penitentiary Lake?
Sub-Penitentiary Lake serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Sub-Penitentiary Lake?
Sub-Penitentiary Lake has a dam height of 40 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 Sub-Penitentiary Lake last inspected?
Sub-Penitentiary Lake was last inspected on November 20, 2005. Inspection dates indicate when a formal review occurred, not the results of that inspection.