Sibley Green Site 4
Key Takeaway
Sibley Green Site 4 is classified as high hazard in New Mexico. It was completed in 1974 and is 52 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 | 80 ft (taller than 85.9% in NM) |
| Dam Length | 2,800 ft |
| Dam Type | Earth |
| Max Storage | 12.4K acre-ft |
| Normal Storage | 0 acre-ft |
| Drainage Area | 86 sq mi |
| Max Discharge | 76,871 cfs |
| Year Completed | 1974 (52 years old) |
| NID ID | NM00442 |
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
CABALLO SOIL & WATER CONSERVATION DISTRICT
Local Government
Nearby Dams
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High Hazard 32 ftCaballo Arroyo Dam No. 2
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High Hazard 18 ftHatch Valley Arroyo Dam No. 6
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High Hazard 46 ftFrequently Asked Questions
What is the hazard classification of Sibley Green Site 4?
Sibley Green Site 4 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 Sibley Green Site 4?
Sibley Green Site 4 is owned by CABALLO SOIL & WATER CONSERVATION DISTRICT (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Sibley Green Site 4 built?
Sibley Green Site 4 was completed in 1974, making it 52 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 Sibley Green Site 4?
Sibley Green Site 4 serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Sibley Green Site 4?
Sibley Green Site 4 has a dam height of 80 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 Sibley Green Site 4 last inspected?
Sibley Green Site 4 was last inspected on June 2, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.