Bay Area Rapid Transit Expansion
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Throughout the history of
Bay Area Rapid Transit Bay Area Rapid Transit (BART) is a rapid transit system serving the San Francisco Bay Area in California. BART serves 50 stations along six routes and of track, including eBART, a spur line running to Antioch, and Oakland Airport Connecto ...
, there have been plans to extend service to other areas.


History

The initial 1962 BART maps approved by voters included several lines beyond the core system marked as ''Possible Future Extensions''. Some have since come to fruition as previous extensions of the system: *The extension from Concord to
Antioch Antioch on the Orontes (; , ) "Antioch on Daphne"; or "Antioch the Great"; ; ; ; ; ; ; . was a Hellenistic Greek city founded by Seleucus I Nicator in 300 BC. One of the most important Greek cities of the Hellenistic period, it served as ...
was carried out in phases with service to North Concord / Martinez in 1995, Pittsburg / Bay Point in 1996, and the
eBART eBART (East Contra Costa County BART extension) is a hybrid rail (light rail with some features similar to commuter rail) branch line of the Bay Area Rapid Transit (BART) system in eastern Contra Costa County, California, United States. The lin ...
spur which started service in 2018. *A line to Livermore was completed as far as Dublin/Pleasanton by 1997, with final completion of the envisioned corridor to be carried out by Valley Link. *Service south of Fremont is expected to reach San Jose and Santa Clara (partially via the Caltrain right of way) by 2030. It was extended to Warm Springs in 2017 and Berryessa in 2020. *Extension from Daly City to the south was completed in phases as the Colma Station opened in 1996 and the line to Millbrae was completed in 2003 with a spur to San Francisco International Airport. The full Southern Pacific (now Caltrain) right of way has been electrified for frequent service with mainline trains, separate from BART. *The Marin Line via Geary was initially cancelled due to the county exiting the planning district over funding and engineering issues. There were two possible routes: (1) via Geary to Park Presidio, then across the Golden Gate Bridge via rails that would have been built into the truss supports under the roadway, then after tunneling through the Waldo Grade to Marin City, would have emerged from underground and followed the old train tracks north through the county; (2) alternatively, to tunnel from Fort Mason/Aquatic Park to downtown Sausalito and follow the right-of-way from the old train tracks. An additional corridor not part of the 1962 plan completed since the agency's inception is the
automated guideway transit An automated guideway transit (AGT) or automated fixed-guideway transit or automatic guideway transit system is a type of fixed guideway transit infrastructure with a riding or suspension track that supports and physically guides one or more dri ...
spur line A branch line is a secondary railway line which branches off a more important through route, usually a main line. A very short branch line may be called a spur line. Branch lines may serve one or more industries, or a city or town not located ...
that connects BART to Oakland International Airport which opened in 2014.


Proposed extensions


San Jose subway extension (Phase 2)

The original plan for the Silicon Valley extension was to continue into downtown San Jose and Santa Clara via subway. However, in February 2009, projections of lower-than-expected sales-tax receipts from the funding measures forced the
Santa Clara Valley Transportation Authority The Santa Clara Valley Transportation Authority, more commonly known simply as the Valley Transportation Authority (VTA), is a Special district (United States), special district responsible for public transit services, Congestion management agen ...
to scale back the extension, ending it at the
Berryessa/North San José station Berryessa/North San José station (also known as Berryessa station and Berryessa Transit Center) is an intermodal transit center located in the Berryessa district of San Jose, California, United States. The station is served by Bay Area Rapid ...
and delaying tunneling under
downtown San Jose Downtown San Jose is the central business district of San Jose, California, San Jose, California, United States. Downtown is one of the largest tech Business cluster, clusters in Silicon Valley, as well as the cultural and political center of Sa ...
to a future phase of construction (making it essentially a "Phase 2" of the project). The originally-planned complete extension from Fremont to Santa Clara had been projected to cost $6.1 billion, but the VTA estimates the extension to Berryessa (Phase 1 only) would cost just $2.3 billion. The plans for the downtown subway start with a portal before crossing under
US 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a major north–south highway that traverses the states of California, Oregon, and Washington on the West Coast of the United States. It is part of the United States Numbered Highway Syst ...
, with subway stations at 28th Street/Little Portugal,
Downtown San Jose station ''Downtown'' is a term primarily used in American and Canadian English to refer to a city's sometimes commercial, cultural and often the historical, political, and geographic heart. It is often synonymous with its central business district (CB ...
(The Downtown San Jose station was combined in 2005 from earlier plans for separate subway stations at Civic Plaza/
San Jose State University San José State University (San Jose State or SJSU) is a Public university, public research university in San Jose, California. Established in 1857, SJSU is the List of oldest schools in California, oldest public university on the West Coast of ...
and Market Street.), and Diridon/Arena. The line would exit to the surface after crossing under I-880 and terminate at a Santa Clara BART station co-located at the existing Santa Clara Depot. Separate construction plans by
San Jose International Airport San José Mineta International Airport —officially Norman Y. Mineta San Jose International Airport—is a city-owned public airport in San Jose, California. Located northwest of Downtown San Jose, the airport serves both the city and the Sa ...
would bring a people-mover train to either the Santa Clara Depot or to Diridon Station. For the subway segment in San Jose, VTA plans to use a
tunnel boring machine A tunnel boring machine (TBM), also known as a "mole" or a "worm", is a machine used to excavate tunnels. TBMs are an alternative to drilling and blasting methods and "hand mining", allowing more rapid excavation through hard rock, wet or dry so ...
for most of the length in order to reduce disruptions to downtown during construction. Only the station locations would have
cut and cover A tunnel is an underground or undersea passageway. It is dug through surrounding soil, earth or rock, or laid under water, and is usually completely enclosed except for the two portals common at each end, though there may be access and ve ...
construction. This is different from how BART subways and stations were built in San Francisco and Oakland, which used the cut and cover method. The construction of the cut and cover stations in downtown San Jose would still cause major albeit temporary disruption, including closing several blocks of Santa Clara Street and severing the
VTA light rail The VTA light rail system serves San Jose, California, San Jose and nearby cities in Santa Clara County, California. It is operated by the Santa Clara Valley Transportation Authority (VTA) and has of network comprising three main lines on stan ...
line at that street. The extension to downtown San Jose could open 2026, contingent on approval of funding. As of April 2018, the plan was to have a single-bore tunnel under Santa Clara Street with cut and cover construction at the station locations only. Utility relocation started and soil samples were taken in February 2019, with construction to begin in 2022.


Funding and electoral history (2000–2008)

Because
Santa Clara County Santa Clara County, officially the County of Santa Clara, is the sixth-most populous county in the U.S. state of California, with a population of 1,936,259 as of the 2020 census. Santa Clara County and neighboring San Benito County form the ...
is not among the member counties of the BART District (having opted out at the district's inception, like neighboring
San Mateo County San Mateo County ( ), officially the County of San Mateo, is a county (United States), county located in the U.S. state of California. As of the 2020 United States census, the population was 764,442. Redwood City, California, Redwood City is th ...
), VTA is responsible for building the extension within Santa Clara County. VTA allocated initial funds for constructing BART using the proceeds from a sales tax referendum which was passed by Santa Clara County voters in 2000. In December 2002, VTA purchased a freight railroad corridor from
Union Pacific Railroad The Union Pacific Railroad is a Railroad classes, Class I freight-hauling railroad that operates 8,300 locomotives over routes in 23 U.S. states west of Chicago and New Orleans. Union Pacific is the second largest railroad in the United Stat ...
which will serve as much of the necessary right-of-way for both the Warm Springs and San Jose extensions for $80 million. In 2004, the Federal Transit Administration decided to wait to fund the project, citing worries that BART did not have enough money to operate the extension. In addition, the San Jose extension project received a "not recommended" rating from the Federal Transit Administration, placing the federal portion of the funding in jeopardy because of concerns about operation and maintenance funding. Santa Clara County voters passed Measure B in 2008, a -cent sales tax raise. Projections by an independent consultant recommended by the Federal Transit Administration predicted that the -cent sales tax would more than cover operation and maintenance of the proposed extension. San Jose voters passed Measure B in 2016, which allowed for final funding of the subway.


Livermore extension: I-580/Tri-Valley Corridor

A proposed extension will further service from Dublin/Pleasanton station east to Livermore, either via traditional BART infrastructure,
diesel multiple unit A diesel multiple unit or DMU is a multiple-unit train powered by on-board diesel engines. A DMU requires no separate locomotive, as the engines are incorporated into one or more of the carriages. Diesel-powered single-unit railcars are also ...
technology similar to
eBART eBART (East Contra Costa County BART extension) is a hybrid rail (light rail with some features similar to commuter rail) branch line of the Bay Area Rapid Transit (BART) system in eastern Contra Costa County, California, United States. The lin ...
, or enhanced bus service. It could possibly continue over the
Altamont Pass Altamont Pass, formerly Livermore Pass, is a low mountain pass in the Diablo Range of Northern California between Livermore in the Livermore Valley and Tracy in the San Joaquin Valley. The name is actually applied to two distinct but nea ...
into Tracy and the Central Valley along I-580 and/or go north through
Dublin Dublin is the capital and largest city of Republic of Ireland, Ireland. Situated on Dublin Bay at the mouth of the River Liffey, it is in the Provinces of Ireland, province of Leinster, and is bordered on the south by the Dublin Mountains, pa ...
, San Ramon, Danville, and
Alamo The Battle of the Alamo (February 23 – March 6, 1836) was a pivotal event and military engagement in the Texas Revolution. Following a 13-day siege, Mexican troops under President General Antonio López de Santa Anna reclaimed the Alam ...
to the existing Walnut Creek station via the
I-680 Interstate 680 may refer to: *Interstate 680 (California), a connecting freeway between I-80 and I-280 in the San Francisco Bay Area, California *Interstate 680 (Nebraska–Iowa), a bypass in Omaha, Nebraska *Interstate 680 (Ohio), a loop through ...
corridor. An existing diesel
commuter rail Commuter rail or suburban rail is a Passenger train, passenger rail service that primarily operates within a metropolitan area, connecting Commuting, commuters to a Central business district, central city from adjacent suburbs or commuter town ...
line, the
Altamont Corridor Express The Altamont Corridor Express (ACE) is a commuter rail service in California, connecting Stockton and San Jose during peak hours only. ACE is named for the Altamont Pass, through which it runs. Service is managed by the San Joaquin Regional R ...
(ACE), currently operates through Livermore. The two systems are linked, though not directly, by a free
shuttle bus A shuttle bus is a bus that travels a shorter route in comparison to most bus routes. Typically, shuttle buses travel in both directions between two points. Shuttle buses are designed to transport large groups of people who are all travelling ...
which transfers passengers between the ACE Pleasanton station and the BART Dublin/Pleasanton station. A preferred alignment was selected July 1, 2010 and originally had the support of the Livermore City Council. This plan would have involved the construction of a station in downtown Livermore, and a second station on Vasco Road near
Lawrence Livermore National Laboratory Lawrence Livermore National Laboratory (LLNL) is a Federally funded research and development centers, federally funded research and development center in Livermore, California, United States. Originally established in 1952, the laboratory now i ...
and
Sandia National Laboratories Sandia National Laboratories (SNL), also known as Sandia, is one of three research and development laboratories of the United States Department of Energy's National Nuclear Security Administration (NNSA). Headquartered in Kirtland Air Force B ...
. Both proposed stations would have provided nearby connections to Altamont Corridor Express service. However, in July 2011, the Livermore City Council reversed its position in response to a petition requesting that the alignment stay within or nearby the Interstate 580 right-of-way, and now favors stations be built at the Interstate 580 interchanges with Isabel Avenue and Greenville Road. BART's
Environmental Impact Report An environmental impact statement (EIS), under United States environmental law, is a document required by the 1969 National Environmental Policy Act (NEPA) for certain actions "significantly affecting the quality of the human environment". An EIS ...
Notice of Preparation, issued in September 2012, proposed a single station at I-580 and Isabel Avenue, with possible
express bus service Public transport bus services are generally based on regular operation of transit buses along a route calling at agreed bus stops according to a published public transport timetable. History of buses Origins While there are indications o ...
s connecting to the Vasco Road ACE station and a park-and-ride lot at I-580 and Greenville Road. Land use plans and studies were being prepared by the city of Livermore in September 2015, with completion envisioned in 2026. Additional funding for consulting and planning were allocated in late 2016, against the wishes of then BART District President Tom Radulovich. On July 31, 2017, BART released the Draft Environmental Impact Report of the project. The direct BART to ACE connection was studied in preparation for ACE''forward'' projects. In 2017, citing lack of interest in the project from BART, the Livermore City Council proposed a newly established local entity to undertake planning and construction of the extension, which was also recommended by the
California State Assembly The California State Assembly is the lower house of the California State Legislature (the upper house being the California State Senate). The Assembly convenes, along with the State Senate, at the California State Capitol in Sacramento, Califor ...
Transportation Committee. The Tri-Valley–San Joaquin Valley Regional Rail Authority was established that year "for purposes of planning, developing, and delivering cost-effective and responsive transit connectivity between the Bay Area Rapid Transit District's rapid transit system and the Altamont Corridor Express commuter rail service in the Tri-Valley, that meets the goals and objectives of the community." On May 24, 2018, the BART board voted against a full
rapid transit Rapid transit or mass rapid transit (MRT) or heavy rail, commonly referred to as metro, is a type of high-capacity public transport that is generally built in urban areas. A grade separation, grade separated rapid transit line below ground su ...
BART build or a bus rapid transit system to extend service east from Dublin/Pleasanton station, thus granting the new authority oversight and funding for constructing a new service called the Valley Link. Moneys previously allocated to BART to construct a Livermore extension were forfeited to the authority by July 1, 2018.


BART Metro Vision

Key components of the overall vision for BART's future, dubbed ''BART Metro Vision'', include more capacity in stations, increased train frequency to allow for "show up and go" service at stations within the system's operational core, and increased performance reliability. The most recent report from BART Metro Vision also identifies improvements to its rolling stock, the Hayward Maintenance Complex, and the modernization of its train control system as key improvements for securing the system's long-term viability.


Second Transbay crossing

Part of BART's 50th anniversary service planning included a new separate Transbay Tube beneath
San Francisco Bay San Francisco Bay (Chochenyo language, Chochenyo: 'ommu) is a large tidal estuary in the United States, U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the cities of San Francisco, California, San ...
running parallel to and south of the existing tube. This would emerge at the
Salesforce Transit Center The Salesforce Transit Center, also known as the Transbay Transit Center, is a transit center in downtown San Francisco. It serves as the primary bus terminal for the San Francisco Bay Area, and is proposed as a possible future rail terminal. ...
to provide connecting service to
Caltrain Caltrain (reporting mark JPBX) is a commuter rail line in California, serving the San Francisco Peninsula and Santa Clara Valley (Silicon Valley). The southern terminus is in San Jose, California, San Jose at the Tamien station with weekday r ...
and the planned
California High-Speed Rail California High-Speed Rail (CAHSR) is a publicly funded high-speed rail system being developed in California by the California High-Speed Rail Authority. Phase 1, about long, is planned to run from San Francisco, California, San Francisco to ...
(CAHSR) system. The additional four-bore Transbay Tube would provide two additional tracks for BART trains, and two tracks for conventional/high-speed rail (the BART system and conventional U.S. rail use different and incompatible
rail gauge In rail transport, track gauge is the distance between the two rails of a railway track. All vehicles on a rail network must have wheelsets that are compatible with the track gauge. Since many different track gauges exist worldwide, gauge dif ...
s, and operate under different sets of safety regulations). Transit advocacy groups in the Bay Area, such as
SPUR A spur is a metal tool designed to be worn in pairs on the heels of riding boots for the purpose of directing a horse or other animal to move forward or laterally while riding. It is usually used to refine the riding aids (commands) and to ba ...
, have long promoted larger-scale expansion of the BART system through various capital projects - one identified as a long-term goal in the Metro Vision is the construction of a second, four-bore rail tunnel under San Francisco Bay, increasing connectivity and capacity of the system. The second crossing would likely route to the
Salesforce Transit Center The Salesforce Transit Center, also known as the Transbay Transit Center, is a transit center in downtown San Francisco. It serves as the primary bus terminal for the San Francisco Bay Area, and is proposed as a possible future rail terminal. ...
for connections with conventional mainline rail services. In 2018, BART announced that a feasibility study for installing a second transbay crossing would commence the following year. By 2019, the Capitol Corridor Joint Powers Authority had joined with BART to study a multi-modal crossing, which could also allow ''
Capitol Corridor The ''Capitol Corridor'' is a passenger train route in Northern California operated by Amtrak between San Jose, California, San Jose, in the Bay Area, and Auburn, California, Auburn, in the Sacramento Valley. The route is named after the two ...
'' and '' San Joaquin'' routes to serve San Francisco directly. In 2021, the Link21 program was announced, using funding from Regional Measure 3. The program initially proposed a 4-track transbay crossing for both BART and commuter rail; however, this was pared back to 2 tracks. In November 2024, Link21 staff recommended standard gauge commuter rail over BART's broad gauge for the tunnel. This would serve the electrified
Caltrain Caltrain (reporting mark JPBX) is a commuter rail line in California, serving the San Francisco Peninsula and Santa Clara Valley (Silicon Valley). The southern terminus is in San Jose, California, San Jose at the Tamien station with weekday r ...
service, with the potential to service both Capitol Corridor and
California High-Speed Rail California High-Speed Rail (CAHSR) is a publicly funded high-speed rail system being developed in California by the California High-Speed Rail Authority. Phase 1, about long, is planned to run from San Francisco, California, San Francisco to ...
services.


eBART extension

Expansions of the DMU-serviced
eBART eBART (East Contra Costa County BART extension) is a hybrid rail (light rail with some features similar to commuter rail) branch line of the Bay Area Rapid Transit (BART) system in eastern Contra Costa County, California, United States. The lin ...
system come at a lower cost-per-mile than conventional wide-gauge BART infrastructure. Service could extend to Oakley, Byron, or Brentwood.


Geary Subway

Part of the plan for the original system before Marin County's departure from the BART District was a line running under
Geary Street Geary Boulevard (designated as Geary Street east of Van Ness Avenue) is a major east–west thoroughfare in San Francisco, California, United States, beginning downtown at Market Street near Market Street's intersection with Kearny Street, a ...
and turning north to the
Golden Gate Bridge The Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the strait connecting San Francisco Bay and the Pacific Ocean in California, United States. The structure links San Francisco—the northern tip of the San Francisco Peni ...
. When Marin County pulled out of the transit district, some plans called for a subway only extending down Geary, but these too were soon scrapped. In 1995, the
San Francisco Municipal Railway The San Francisco Municipal Railway (SF Muni or Muni ) is the primary public transit system within San Francisco, California. It operates a system of List of San Francisco Municipal Railway lines, bus routes (including Trolleybuses in San Franc ...
hired Merrill & Associates to study the possibility of building a new BART subway beneath Geary in conjunction with adding
light rail Light rail (or light rail transit, abbreviated to LRT) is a form of passenger urban rail transit that uses rolling stock derived from tram technology National Conference of the Transportation Research Board while also having some features from ...
on the surface. The estimated cost of construction as far as Park Presidio Boulevard was $1.4 billion in 1995 ($ adjusted for inflation). Projections from this study put BART ridership at 18,000 daily boardings, and the alignment would allow for a further extension to Marin. These plans were dropped, according to former Senator
Quentin L. Kopp Quentin Lewis Kopp (born August 11, 1928) is an American attorney and politician. He served as a member of the San Francisco Board of Supervisors and in the California State Senate. Kopp ran unsuccessfully for mayor of San Francisco in 1979 again ...
, due to merchant and resident opposition, citing potential blight similar to that caused by Market Street Subway construction two decades earlier. Ongoing studies will determine whether the corridor may one day be served by future BART service. It may be constructed as an extension of the second Transbay Tube.


wBART extension

The only branch of the original BART system that has not been extended since service commenced is the line ending at Richmond station. Possible alignments for an extension further north were examined in 1983, 1992, and 2017. Both newly constructed BART wide-gauge electrified rail and the use of existing freight rail
rights of way A right of way (also right-of-way) is a specific route that people, animals, vehicles, watercraft, or utility lines travel, or the legal status that gives them the right to do so. Rights-of-way in the physical sense include controlled-access h ...
and tracks with more readily available
standard gauge A standard-gauge railway is a railway with a track gauge of . The standard gauge is also called Stephenson gauge (after George Stephenson), international gauge, UIC gauge, uniform gauge, normal gauge in Europe, and SGR in East Africa. It is the ...
trains were considered. Potential station locations include
Hilltop Mall Hilltop Mall is a defunct regional shopping center in the Hilltop neighborhood of Richmond, California. Hilltop was managed and co-owned by Prologis, Inc. The only anchor store left is Walmart. There are 3 vacant anchor stores that were once ...
,
Pinole Pinole, also called pinol, is roasted ground maize. The resulting powder is then used as a nutrient-dense ingredient to make different foods, such as cereals, baked goods, tortillas, and beverages. For example, it can be mixed with a combination ...
, and
Hercules Transit Center Hercules Transit Center is a major commuter hub in the western Contra Costa County, California, Contra Costa County city of Hercules, California. It is anchored by WestCAT bus services. The center was originally on San Pablo Avenue. In August 20 ...
. The cost of an extension to Hercules Transit Center utilizing mainline BART technology was estimated at $3.6 billion in 2017 with a ridership of 21,980 by 2040. The extension to Hercules is controversial in that the main proponent wants to build it directly from the El Cerrito del Norte BART station while the city of Richmond is very opposed to this. Furthermore, the majority of the Hercules city council opposes the extension as they believe it will detract from their plan to develop
Hercules station Hercules station (officially the Hercules Regional Intermodal Transit Center) is a proposed intermodal infill train station and ferry terminal in Hercules, California in Contra Costa County. It is to be the first direct Amtrak-to-ferry transit ...
.


I-680 Corridor

Service in the Tri-Valley area had previously been considered with diesel multiple service originating at Walnut Creek and running as far east as Tracy. As part of BART's 50th anniversary and envisioning another fifty years of service, planners foresaw a new East Bay alignment originating at Warm Springs station and running via Interstate 680 to the
Martinez Amtrak station Martinez station is an Amtrak passenger train station in Martinez, California, United States. Located at the west end of downtown Martinez, the station has one side platform and one island platform, which serve three of the four tracks of the ...
. It would connect to the existing stations at Dublin / Pleasanton and Walnut Creek.


Menlo Park extension

In 1999, a short-lived proposal to extend BART from the Millbrae station (then under construction) to Menlo Park was advanced by the San Mateo County Economic Development Association (SAMCEDA). The proposed routing would have paralleled the Caltrain tracks to Broadway station in Burlingame, and then would run along the median of
Bayshore Freeway The Bayshore Freeway is a part of U.S. Route 101 (US 101) in the San Francisco Bay Area of the U.S. state of California. It runs along the west shore of the San Francisco Bay, connecting San Jose with San Francisco. Within the city of San F ...
to Menlo Park, with stations in San Mateo, Belmont/San Carlos, Redwood City, and Menlo Park. Cost estimates ranged up to , drawing funding from a 1/2-cent sales tax increase in San Mateo County. BART leadership warned the timing was not appropriate for a push further south into San Mateo County, and SAMCEDA withdrew the proposal by the summer of 1999.


Infill stations

Infill station An infill station (sometimes in-fill station) is a train station built on an existing passenger rail, rapid transit, or light rail line to address demand in a location between existing stations. Such stations take advantage of existing train ser ...
s are stations constructed on existing line segments between two existing stations. The (1976) and (2011) stations are the only infill stations currently in the BART system. The
Doolittle Maintenance and Storage Facility The Doolittle Maintenance and Storage Facility (also known as the Wheelhouse) is the operations management center for the BART Oakland Airport Connector. The building is used for storage and maintenance of the Cable Liner cars, and is also the ...
, initially slated to be opened as a full station along the
Oakland Airport Connector The Oakland Airport Connector is an automated guideway transit (AGT) system operated by Bay Area Rapid Transit (BART) between BART's Coliseum station and Oakland International Airport station. The line is colored on BART maps as grey. The sys ...
, may be repurposed for passenger service at a later date. Construction costs for a planned 30th Street Mission station in San Francisco, between the existing 24th Street Mission and Glen Park stations, were estimated at $500 million in 2003. A proposal for a
Jack London Square Jack London Square is a neighborhood on the waterfront of Oakland, California, United States. Named after the author Jack London and owned by the Port of Oakland, it is the home of stores, restaurants, hotels, Amtrak's Jack London Square st ...
station in Oakland was rejected in 2004 as being incompatible with existing
track geometry Track geometry is concerned with the properties and relations of points, lines, curves, and surfaces in the three-dimensional positioning of railroad Track (rail transport), track. The term is also applied to measurements used in design, construct ...
; a one-station stub line at the foot of Broadway and the use of other transit modes also were studied. BART planners studied additional stations at four other sites within the system in 2007: Albany, Calaveras, Irvington, and 30th Street Mission. Other potential stations noted in 2014 included a station at 30th Street/Mission in San Francisco, an infill station between and , and four Oakland stations at
Children's Hospital Oakland UCSF Benioff Children's Hospital Oakland formerly known as Children's Hospital Oakland, is a pediatric acute care hospital located in Oakland, California Oakland is a city in the East Bay region of the San Francisco Bay Area in the U.S. state ...
, San Antonio/Brooklyn Basin, Melrose and Elmhurst. The City of Fremont re-evaluated the Irvington station's environmental impact report in 2017, and a station area plan was adopted by the Fremont City Council and approved by the BART Board of Directors in 2019. , estimates from the city anticipated construction to begin in 2022, with the Irvington station opening for service in 2026.


References


External links


BART home page

BART Projects

BART Planning

BART Silicon Valley Extension
at Santa Clara Valley Transportation Authority (VTA)
Oakland Airport Connector Animation
{{Bay Area Rapid Transit, state=collapsed Bay Area Rapid Transit Expansion Projects Proposed public transportation in the San Francisco Bay Area Public transportation in Alameda County, California Public transportation in Contra Costa County, California Public transportation in San Francisco Public transportation in San Mateo County, California Public transportation in Santa Clara County, California Rail transportation in Oakland, California Proposed railway lines in California