Collier Bertha
Key Takeaway
Collier Bertha is classified as low hazard in Oklahoma. It was completed in 1988 and is 38 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 33 ft (taller than 68.1% in OK) |
| Dam Length | 164 ft |
| Dam Type | Earth |
| Max Storage | 30 acre-ft |
| Normal Storage | 8 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 350 cfs |
| Year Completed | 1988 (38 years old) |
| NID ID | OK21914 |
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
TWILA MAE EDDINS-WORTHY
Private
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Low Hazard 28 ftFrequently Asked Questions
What is the hazard classification of Collier Bertha?
Collier Bertha 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 Collier Bertha?
Collier Bertha is owned by TWILA MAE EDDINS-WORTHY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Collier Bertha built?
Collier Bertha was completed in 1988, making it 38 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 Collier Bertha?
Collier Bertha 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 Collier Bertha?
Collier Bertha has a dam height of 33 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 Collier Bertha last inspected?
Collier Bertha was last inspected on August 17, 2011. Inspection dates indicate when a formal review occurred, not the results of that inspection.