Interstate 40 in California

Interstate 40 marker
Interstate 40
Needles Freeway
Map
I-40 highlighted in red
Route information
Maintained by Caltrans
Length154.64 mi[1] (248.87 km)
Existed1964 (1964)–present
NHSEntire route
Major junctions
West end I-15 in Barstow
Major intersections US 95 in Needles
East end I-40 at the Arizona state line near Topock, AZ
Location
CountryUnited States
StateCalifornia
CountiesSan Bernardino
Highway system
SR 39 SR 41

Interstate 40 (I-40) is a major east–west Interstate Highway in the United States, stretching from Barstow, California, to Wilmington, North Carolina. The segment of I-40 in California is sometimes called the Needles Freeway. It passes through the eastern fringe of the Inland Empire metropolitan area, going east from its western terminus at I-15 in Barstow across the Mojave Desert in San Bernardino County past the Clipper Mountains to Needles, before it crosses over the Colorado River into Arizona east of Needles. All 155 miles (249 km) of I-40 in California are in San Bernardino County.

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