Leach Flood #1
Key Takeaway
Leach Flood #1 is classified as high hazard in Arizona. It was completed in 1965 and is 61 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 | 36 ft (taller than 64.5% in AZ) |
| Dam Length | 500 ft |
| Dam Type | Earth |
| Max Storage | 155 acre-ft |
| Normal Storage | 135 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 410 cfs |
| Year Completed | 1965 (61 years old) |
| NID ID | AZ00080 |
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
FREEPORT-MCMORAN SIERRITA OPERATIONS
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Leach Flood #1?
Leach Flood #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 Leach Flood #1?
Leach Flood #1 is owned by FREEPORT-MCMORAN SIERRITA OPERATIONS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Leach Flood #1 built?
Leach Flood #1 was completed in 1965, making it 61 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 Leach Flood #1?
Leach Flood #1 serves the following purposes: Flood Risk Reduction, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Leach Flood #1?
Leach Flood #1 has a dam height of 36 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 Leach Flood #1 last inspected?
Leach Flood #1 was last inspected on October 14, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.