John Groendyke
Key Takeaway
John Groendyke is classified as low hazard in Oklahoma. It was completed in 1960 and is 66 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 20 ft (taller than 11.5% in OK) |
| Dam Length | 350 ft |
| Dam Type | Earth |
| Max Storage | 150 acre-ft |
| Normal Storage | 100 acre-ft |
| Max Discharge | 2,204 cfs |
| Year Completed | 1960 (66 years old) |
| NID ID | OK13226 |
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
BOYD W FREEMAN
Private
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What is the hazard classification of John Groendyke?
John Groendyke 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 John Groendyke?
John Groendyke is owned by BOYD W FREEMAN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was John Groendyke built?
John Groendyke was completed in 1960, making it 66 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 John Groendyke?
John Groendyke 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 John Groendyke?
John Groendyke has a dam height of 20 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 John Groendyke last inspected?
John Groendyke was last inspected on December 14, 2010. Inspection dates indicate when a formal review occurred, not the results of that inspection.