1 West
Key Takeaway
1 West is classified as low hazard in Arizona. Its primary use is tailings.
Physical Details
| Dam Height | 400 ft (taller than 99% in AZ) |
| Dam Length | 1 ft |
| Dam Type | Earth |
| Max Storage | 13.1K acre-ft |
| NID ID | AZ83453 |
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
Freeport McMoran Morenci Inc.
Private
Nearby Dams
3 West
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Significant Hazard 225 ft4 West
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High Hazard 42 ftHoward
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High Hazard 45 ftLee
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High Hazard 61 ftBillingsley Dam
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High HazardFrequently Asked Questions
What is the hazard classification of 1 West?
1 West 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 1 West?
1 West is owned by Freeport McMoran Morenci Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
What is the primary purpose of 1 West?
1 West serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is 1 West?
1 West has a dam height of 400 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.