| Blue Line | |||
|---|---|---|---|
.svg) | |||
 Daly City-bound train west of Dublin/Pleasanton station in May 2018 | |||
| Overview | |||
| Owner | San Francisco Bay Area Rapid Transit District | ||
| Locale | Tri-Valley,East Bay,San Francisco Peninsula | ||
| Termini | |||
| Stations | 18 | ||
| Service | |||
| Type | Rapid transit | ||
| System | Bay Area Rapid Transit | ||
| History | |||
| Opened | May 10, 1997 (1997-05-10) | ||
| Technical | |||
| Line length | 35.7 mi (57.5 km) | ||
| Track gauge | 5 ft 6 in (1,676 mm) | ||
| Electrification | Third rail,1 kV DC | ||
| Operating speed | 70 mph (110 km/h)[1] | ||
| |||
TheBlue Line is aBay Area Rapid Transit (BART) line in theSan Francisco Bay Area that runs betweenDublin/Pleasanton station andDaly City station. It has 18 stations inDublin,Pleasanton,Castro Valley,San Leandro,Oakland,San Francisco, andDaly City.
The Blue Line shares much of its track with other BART services. The eastern segment which is unique to it is located in the median ofInterstate 580, as are its three unique stations ofCastro Valley,West Dublin/Pleasanton, andDublin/Pleasanton.
Of BART's five primaryrapid transit services, the Blue Line was the most recent to open. Service began when the Dublin/Pleasanton extension opened on May 10, 1997.[2] TheWest Dublin/Pleasanton infill station was added to the line on February 19, 2011.[3]
When the SFO/Millbrae extension opened on June 22, 2003, BART extended the Blue Line toSFO. BART truncated the Blue Line back toDaly City and rerouted theYellow Line toSan Francisco International Airport in its place on February 9, 2004.San Mateo County is not a member of the San Francisco Bay Area Rapid Transit District, soSamTrans funded the county's BART service. When the extension's lower-than-expected ridership caused SamTrans to accrue deficits, BART agreed to SamTrans' request to operate only this line south of Daly City effective September 12, 2005.
SamTrans and BART reached an agreement in February 2007 in which SamTrans would transfer control and financial responsibility of the SFO/Millbrae extension to BART, in return for BART receiving additional fixed funding from SamTrans and other sources.[4] BART has since again increased service south of Daly City, but this line now terminates atDaly City.
| Date of change | Service pattern |
|---|---|
| June 22, 2003 | Daly City–SFO[5] |
| February 9, 2004 | none[6] |
| September 12, 2005 | Daly City–SFO/Millbrae[7] |
| January 1, 2008 | Daly City–Millbrae (evenings/weekends)[8] |
| September 14, 2009 | none[9] |
On February 11, 2019, the Blue Line began operating betweenMacArthur station and Dublin/Pleasanton station on Sundays. The change was to allow single-tracking in theMarket Street subway during electrical work, with only the Yellow Line running through theTransbay Tube to serve San Francisco.[10]
Sunday service to San Francisco and Daly City resumed on February 16, 2020. From February 16, 2020 to September 13, 2020, and again from March 22, 2021 to August 1, 2021, trains terminated at Montgomery station during single-tracking work.[11][12] From September 14, 2020 to March 21, 2021, and again from August 2, 2021 onwards, trains terminate at24th Street Mission during single-tracking work.[13][14]
| Station | Jurisdiction | County | Opened | Other BART lines |
|---|---|---|---|---|
| Dublin/Pleasanton | Dublin /Pleasanton | Alameda | May 10, 1997 | |
| West Dublin/Pleasanton | February 19, 2011 | |||
| Castro Valley | Castro Valley | May 10, 1997 | ||
| Bay Fair | San Leandro | September 11, 1972 |  Green Line Orange Line | |
| San Leandro | ||||
| Coliseum | Oakland |  Oakland Airport ConnectorGreen LineOrange Line | ||
| Fruitvale | Green LineOrange Line | |||
| Lake Merritt | ||||
| West Oakland | September 16, 1974 | Green Line Red Line Yellow Line | ||
| Embarcadero | San Francisco | May 27, 1976 | ||
| Montgomery Street | November 5, 1973 | |||
| Powell Street | ||||
| Civic Center/UN Plaza | ||||
| 16th Street Mission | ||||
| 24th Street Mission | ||||
| Glen Park | ||||
| Balboa Park | ||||
| Daly City | Daly City | San Mateo | ||
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