West Pre-Sedimentation Basin
Key Takeaway
West Pre-Sedimentation Basin is classified as high hazard in Oklahoma. It was completed in 1966 and is 60 years old. Its primary use is water supply. 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 | 22 ft (taller than 19.9% in OK) |
| Dam Length | 3,650 ft |
| Dam Type | Earth |
| Max Storage | 340 acre-ft |
| Normal Storage | 198 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 17 cfs |
| Year Completed | 1966 (60 years old) |
| NID ID | OK30393 |
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
BROKEN ARROW MUNICIPAL AUTHORITY
Local Government
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Low Hazard 27 ftFrequently Asked Questions
What is the hazard classification of West Pre-Sedimentation Basin?
West Pre-Sedimentation Basin 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 West Pre-Sedimentation Basin?
West Pre-Sedimentation Basin is owned by BROKEN ARROW MUNICIPAL AUTHORITY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was West Pre-Sedimentation Basin built?
West Pre-Sedimentation Basin was completed in 1966, making it 60 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 West Pre-Sedimentation Basin?
West Pre-Sedimentation Basin serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is West Pre-Sedimentation Basin?
West Pre-Sedimentation Basin has a dam height of 22 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 West Pre-Sedimentation Basin last inspected?
West Pre-Sedimentation Basin was last inspected on November 29, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.