Phoenix Detention Basin #7
Key Takeaway
Phoenix Detention Basin #7 is classified as high hazard in Arizona. It was completed in 1978 and is 48 years old. Its primary use is flood risk reduction. 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 | 23 ft (taller than 40.4% in AZ) |
| Dam Length | 1,050 ft |
| Dam Type | Earth |
| Max Storage | 272 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 5,600 cfs |
| Year Completed | 1978 (48 years old) |
| NID ID | AZ00176 |
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
CITY OF PHOENIX, STREET TRANSPORTATION DEPT.
Local Government
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Low Hazard 44 ftFrequently Asked Questions
What is the hazard classification of Phoenix Detention Basin #7?
Phoenix Detention Basin #7 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 Phoenix Detention Basin #7?
Phoenix Detention Basin #7 is owned by CITY OF PHOENIX, STREET TRANSPORTATION DEPT. (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Phoenix Detention Basin #7 built?
Phoenix Detention Basin #7 was completed in 1978, making it 48 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 Phoenix Detention Basin #7?
Phoenix Detention Basin #7 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 Phoenix Detention Basin #7?
Phoenix Detention Basin #7 has a dam height of 23 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 Phoenix Detention Basin #7 last inspected?
Phoenix Detention Basin #7 was last inspected on February 25, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.