Cypress Black Bayou Site 1
Key Takeaway
Cypress Black Bayou Site 1 is classified as high hazard in Louisiana. It was completed in 1975 and is 51 years old. Its primary use is irrigation. 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 | 46 ft (taller than 97.8% in LA) |
| Dam Length | 7,100 ft |
| Dam Type | Earth |
| Max Storage | 77.0K acre-ft |
| Normal Storage | 25.0K acre-ft |
| Surface Area | 3,100 acres |
| Drainage Area | 155 sq mi |
| Max Discharge | 45,400 cfs |
| Year Completed | 1975 (51 years old) |
| NID ID | LA00013 |
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
Cypress Black Bayou Recreation and Water Conservation District
Local Government
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Low Hazard 13 ftFrequently Asked Questions
What is the hazard classification of Cypress Black Bayou Site 1?
Cypress Black Bayou Site 1 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 Cypress Black Bayou Site 1?
Cypress Black Bayou Site 1 is owned by Cypress Black Bayou Recreation and Water Conservation District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Cypress Black Bayou Site 1 built?
Cypress Black Bayou Site 1 was completed in 1975, making it 51 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 Cypress Black Bayou Site 1?
Cypress Black Bayou Site 1 serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Cypress Black Bayou Site 1?
Cypress Black Bayou Site 1 has a dam height of 46 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 Cypress Black Bayou Site 1 last inspected?
Cypress Black Bayou Site 1 was last inspected on October 13, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.