Interstate 40 in California

Interstate 40
Interstate 40
Needles Freeway
	I-40 highlighted in red
Route information
	Maintained by Caltrans
Length	154.64 mi (248.87 km)
Existed	1964–present
NHS	Entire route
Major junctions
West end	I-15 in Barstow
	US 95 in Needles
East end	I-40 at the Arizona state line near Topock, AZ
Location
Country	United States
State	California
Counties	San Bernardino
Highway system
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future; State highways in California; Interstate; US; State; Scenic; History; Pre‑1964; Unconstructed; Deleted; Freeways;

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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