Interstate 10 in Arizona

In the U.S. state of Arizona, Interstate 10 (I‑10), the major east–west Interstate Highway in the United States Sun Belt, runs east from California, enters Arizona near the town of Ehrenberg and continues through Phoenix and Tucson and exits at the border with New Mexico near San Simon. The highway also runs through the cities of Casa Grande, Eloy, and Marana. Segments of the highway are referred to as either the Papago Freeway, Inner Loop, or Maricopa Freeway within the Phoenix area and the Pearl Harbor Memorial Highway outside metro Phoenix.

This article is about the section of Interstate 10 in Arizona. For the entire route, see Interstate 10.

Interstate 10

Pearl Harbor Memorial Highway
I-10 highlighted in red
Route information
Maintained by ADOT
Length391.99 mi (630.85 km)
Existed1960–present
HistoryFirst section completed in 1960; Last section opened in 1990.
NHSEntire route
Major junctions
West end I-10 / US 95 at California state line near Blythe, CA
Major intersections
East end I-10 at New Mexico state line
Location
CountryUnited States
StateArizona
CountiesLa Paz, Maricopa, Pinal, Pima, Cochise
Highway system
  • Arizona State Highway System
← I-8→ I-15
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