White Mountain
Key Takeaway
White Mountain is classified as low hazard in Arizona. It was completed in 1929 and is 97 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 16 ft (taller than 20.5% in AZ) |
| Dam Length | 1,200 ft |
| Dam Type | Earth |
| Normal Storage | 2.4K acre-ft |
| Surface Area | 480 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 220 cfs |
| Year Completed | 1929 (97 years old) |
| NID ID | AZ00099 |
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
PIONEER IRRIGATION COMPANY INC.
Private
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High Hazard 58 ftFrequently Asked Questions
What is the hazard classification of White Mountain?
White Mountain 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 White Mountain?
White Mountain is owned by PIONEER IRRIGATION COMPANY INC. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was White Mountain built?
White Mountain was completed in 1929, making it 97 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 White Mountain?
White Mountain 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 White Mountain?
White Mountain has a dam height of 16 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 White Mountain last inspected?
White Mountain was last inspected on September 18, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.