San Juan Power Generation Dam
Key Takeaway
San Juan Power Generation Dam is classified as high hazard in New Mexico. It was completed in 1972 and is 54 years old. Its primary use is other. 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 | 76 ft (taller than 85% in NM) |
| Dam Length | 1,760 ft |
| Dam Type | Earth |
| Max Storage | 3.3K acre-ft |
| Normal Storage | 2.6K acre-ft |
| Surface Area | 107 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 930 cfs |
| Year Completed | 1972 (54 years old) |
| Year Modified | 1981 |
| NID ID | NM00346 |
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
PUBLIC SERVICE COMPANY OF NEW MEXICO
Public Utility
Nearby Dams
San Juan South Pond 2
San Juan, NM
Significant Hazard 31 ftSan Juan South Pond 3
San Juan, NM
Significant Hazard 34 ftSan Juan South Pond 4
San Juan, NM
Significant Hazard 30 ftSan Juan South Pond 5
San Juan, NM
Significant Hazard 33 ftSan Juan South Pond 1
San Juan, NM
Significant Hazard 33 ftEl Paso Natural Gas Dam No. 5
San Juan, NM
Low Hazard 28 ftMorgan Dam
San Juan, NM
High Hazard 133 ftAps Ash Pond Tailings Dam No. 6
San Juan, NM
Low Hazard 90 ftFrequently Asked Questions
What is the hazard classification of San Juan Power Generation Dam?
San Juan Power Generation Dam 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 San Juan Power Generation Dam?
San Juan Power Generation Dam is owned by PUBLIC SERVICE COMPANY OF NEW MEXICO (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was San Juan Power Generation Dam built?
San Juan Power Generation Dam was completed in 1972, making it 54 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 San Juan Power Generation Dam?
San Juan Power Generation Dam serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is San Juan Power Generation Dam?
San Juan Power Generation Dam has a dam height of 76 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 San Juan Power Generation Dam last inspected?
San Juan Power Generation Dam was last inspected on May 8, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.