Interstates
Interstates in New Mexico are the following:
- I-10 Arizona to Texas
- I-40 Arizona to Texas
- I-25 Colorado to I-10
Other Important Major Roads
- US-550 Farmington to Albuquerque
- US-285 Colorado to Texas
- US-60 Arizona to Texas
- US-54 El Paso, TX to NW Texas
- SR-26 Hatch NM to Deming NM, critical for functional classification routing
Functional Classification
Reference: Road names/USA and Road types/USA. New Mexico participates in the functional classification of roads; however, this is a new standard that is going through changes and all changes should be socialized with existing primary editors in the state.
New Mexico's functional classification is not completely clear. Reference to the Federal Functional Classification can be found in THIS MAP (which has low resolution) which is on NMDOT's Planning Page.