County Line Detention Dam
Key Takeaway
County Line Detention Dam is classified as high hazard in New Mexico. It was completed in 1956 and is 70 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 | 32 ft (taller than 50% in NM) |
| Dam Length | 650 ft |
| Dam Type | Earth |
| Max Storage | 182 acre-ft |
| Normal Storage | 0 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 11,408 cfs |
| Year Completed | 1956 (70 years old) |
| NID ID | NM00181 |
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
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High Hazard 27 ftFrequently Asked Questions
What is the hazard classification of County Line Detention Dam?
County Line Detention 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 County Line Detention Dam?
County Line Detention Dam 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 County Line Detention Dam built?
County Line Detention Dam was completed in 1956, making it 70 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 County Line Detention Dam?
County Line Detention Dam 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 County Line Detention Dam?
County Line Detention Dam has a dam height of 32 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 County Line Detention Dam last inspected?
County Line Detention Dam was last inspected on June 2, 2015. Inspection dates indicate when a formal review occurred, not the results of that inspection.