Orange Line (BART)

Orange Line (BART)

Company type	Rapid transit
Industry	Public transportation
Founded	September 11, 1972 (1972-09-11)
Headquarters	San Francisco Bay Area , United States
Area served	San Jose, Milpitas, Fremont, Union City, Hayward, San Leandro, Oakland, Berkeley, El Cerrito, Richmond
Products	Rapid transit service

The Orange Line represents a Bay Area Rapid Transit (BART) corridor operating within the San Francisco Bay Area, extending from Berryessa/North San José station to Richmond station. This route encompasses 21 stops located in the cities of San Jose, Milpitas, Fremont, Union City, Hayward, San Leandro, Oakland, Berkeley, El Cerrito, and Richmond. Unlike the other main BART lines, the Orange Line does not traverse the Transbay Tube to San Francisco but shares track segments with them within the East Bay region.

History

BART's first operational route was the Orange Line, which commenced service between MacArthur and Fremont on September 11, 1972. Service extending to Richmond was fully established by January 29, 1973.

For approximately 45 years, the line's configuration remained mostly consistent until the Silicon Valley BART extension initiative expanded its reach. The initial phase reached Warm Springs/South Fremont station in March 2017, followed by a second phase in June 2020 that introduced stops at Berryessa/North San José and Milpitas, thereby improving access to Silicon Valley.

Route

Primarily oriented along a north-south axis through the East Bay, the Orange Line operates on several BART track segments: the R-Line from Richmond to just north of MacArthur, the K-Line between MacArthur and the junction known as the Oakland Wye, the A-Line from there to Fremont, and finally the S-Line connecting Fremont with Berryessa/North San José station. The majority of this line is either at ground level or elevated, with tunnel sections running beneath downtown Berkeley, downtown Oakland, and under Lake Elizabeth.

Stations

Station	Jurisdiction	County	Opened	Other BART lines
Template:Bart	Richmond	Contra Costa	January 29, 1973	Template:Ric
Template:Bart	El Cerrito
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Template:Bart	Berkeley	Alameda
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Template:Bart	Oakland		September 11, 1972	Template:Ric Template:Ric
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Template:Bart				Template:Ric Template:Ric Template:Ric
Template:Bart	San Leandro			Template:Ric Template:Ric
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Template:Bart	Hayward			Template:Ric

Station	Jurisdiction	County	Opened	Other BART lines

|- |get bart |Union City||Union City, California | | | |- |get bart |Fremont||rowspan=2 |Fremont, California | | | |- |get bart |Warm Springs/South Fremont||March 25, 2017 | | | |- |get bart |Milpitas||Milpitas, California||rowspan=2 |Santa Clara County ||June 13, 2020 | |- |get bart |Berryessa/North San José||San Jose, California | | | |}