Department of Transportation
NMDOT
New Mexico • United States of America
The New Mexico Department of Transportation (NMDOT) manages approximately 11,600 miles of state highways through a large, geographically diverse state serving as a key corridor for US-Mexico cross-border freight. Critical freight routes include I-10, I-25, I-40, and US-60, which carry agricultural products, manufactured goods, and energy commodities. NMDOT administers commercial vehicle permits and oversize loads essential for the oil and gas, construction, and mining industries. The NMRoads.com system provides real-time road conditions for truckers navigating New Mexico's varied terrain, from desert flats to high mountain passes. The department manages critical ports of entry along the US-Mexico border.
| Official Website | https://www.dot.nm.gov/ |
|---|---|
| Founded | 1912 |
| Headquarters | Albuquerque |
Available Data
Social Media
- @NMRoads511 — NMRoads511
New Mexico Trucking Regulations
Size & weight limits, OS/OW permits, and seasonal restrictions for commercial vehicles
Weight Limits
| Category | Limit |
|---|---|
| Max Gross Vehicle Weight | 80000 lbs |
| Single Axle | 20000 lbs |
| Tandem Axle | 34000 lbs |
Dimensional Limits
| Category | Limit |
|---|---|
| Max Height | 14 ft |
| Max Width | 8.5 ft |
| Max Length (Single Unit) | 40 ft |
| Max Length (Combination) | 65 ft |
OS/OW Permits
Weigh Station Bypass
21¢/gal
Member
Special Exemptions
Notable Rules
New Mexico permits triple-trailer combinations on I-40 under the STAA network. Oil and gas extraction in the Permian Basin (southeast NM) and potash mining generate significant heavy haul on rural routes. I-40 and I-25 are primary freight corridors. NMDOT operates ports of entry on major routes into the state. Monsoon flooding (July–September) can wash out desert roads.
Sources
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