I-210 (CA)

Interstate 210 and State Route 210
Foothill Freeway
Route 210 highlighted in red
Route information
Defined by
Maintained by Caltrans
Length:	86 mi (138 km) Length includes the unconstructed freeway section.
History:	1933 as a highway, 1964 as a number
Component highways:	I-210 from Los Angeles to Glendora SR 210 from Glendora to Redlands
Major junctions
West end:	I-5 in Los Angeles
	SR 118 in Los Angeles SR 2 in Glendale SR 134 in Pasadena I-605 in Irwindale SR 57 in Glendora I-15 in Rancho Cucamonga I-215 in San Bernardino
East end:	I-10 in Redlands
Location
Counties:	Los Angeles, San Bernardino
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future State highways in California Interstate U.S. State Pre-1964 History Unconstructed Deleted Freeway Scenic ← SR 209 SR 211 →

Route 210, consisting of the contiguous segments of Interstate 210 (I-210) and State Route 210 (SR 210) forming the Foothill Freeway, is a major east–west state highway in the Greater Los Angeles area of the U.S. state of California. The western portion of the route is an auxiliary Interstate Highway, while the eastern portion is a state highway. The entire route was upgraded to Interstate Highway standards by 2007, and the California Department of Transportation (Caltrans) has requested permission to re-sign the eastern portion as an Interstate Highway.

The name Foothill Freeway is a reference to Foothill Boulevard and the San Gabriel Mountains, both of which run parallel to the freeway for most of its length. The freeway connects Los Angeles with its northern suburbs following the foothills of these mountains. The freeway runs from the Sylmar district of Los Angeles east to Redlands.