Aps Ash Pond Tailings Dam No. 3
Key Takeaway
Aps Ash Pond Tailings Dam No. 3 is classified as low hazard in New Mexico. It was completed in 1976 and is 50 years old. Its primary use is tailings.
Physical Details
| Dam Height | 95 ft (taller than 89.3% in NM) |
| Dam Length | 6,600 ft |
| Dam Type | Earth |
| Max Storage | 839 acre-ft |
| Normal Storage | 839 acre-ft |
| Surface Area | 138 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1976 (50 years old) |
| Year Modified | 1992 |
| NID ID | NM00449 |
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
ARIZONA PUBLIC SERVICE COMPANY
Public Utility
Nearby Dams
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Significant Hazard 86 ftAps Lined Ash Impoundment
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Significant Hazard 40 ftAps Ash Pond Tailings Dam No. 6
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Low Hazard 90 ftMorgan Dam
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High Hazard 133 ftSan Juan Power Generation Dam
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High Hazard 76 ftSan Juan South Pond 5
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Significant Hazard 33 ftSan Juan South Pond 4
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Significant Hazard 30 ftSan Juan South Pond 3
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Significant Hazard 34 ftFrequently Asked Questions
What is the hazard classification of Aps Ash Pond Tailings Dam No. 3?
Aps Ash Pond Tailings Dam No. 3 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 Aps Ash Pond Tailings Dam No. 3?
Aps Ash Pond Tailings Dam No. 3 is owned by ARIZONA PUBLIC SERVICE COMPANY (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Aps Ash Pond Tailings Dam No. 3 built?
Aps Ash Pond Tailings Dam No. 3 was completed in 1976, making it 50 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 Aps Ash Pond Tailings Dam No. 3?
Aps Ash Pond Tailings Dam No. 3 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 Aps Ash Pond Tailings Dam No. 3?
Aps Ash Pond Tailings Dam No. 3 has a dam height of 95 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 Aps Ash Pond Tailings Dam No. 3 last inspected?
Aps Ash Pond Tailings Dam No. 3 was last inspected on November 20, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.