NM-165

I-25 south approaching Exit 242 - US-550 West/NM-165 East/Rio Rancho/Placitas. This is the southern end of US-550. The speed limit drops from 75 miles per hour to 70 miles per hour as the highway enters the edge of the Albuquerque metropolitan area.

End US-550 South at I-25 north to Santa Fe. NM-165 begins here and heads towards Placitas.

I-25 north at Exit 242 - US-550 North/NM-165 East/Bernalillo/Placitas. This is the southern end of US-550.