Transbay Transit Center Project

The Transbay Transit Center Project

The Transbay Transit Center Project is a visionary transportation and housing project that is transforming downtown San Francisco and the San Francisco Bay Area's regional transportation system by creating a "Grand Central Station of the West" in the heart of a new transit-friendly neighborhood. The approximately $4.5 billion project will replace the former Transbay Terminal at First and Mission streets in San Francisco with a modern regional transit hub connecting eight Bay Area counties and the State of California through 11 transit systems: AC Transit, BART, Caltrain, Golden Gate Transit, Greyhound, Muni, SamTrans, WestCAT Lynx, Amtrak, Paratransit and the future High Speed Rail from San Francisco to Los Angeles/Anaheim.

The project consists of three interconnected elements:
(1) Replacing the former Transbay Terminal at First and Mission streets
(2) Extending Caltrain and California High Speed Rail underground from Caltrain's current terminus at 4th and King streets into the new downtown Transit Center
(3) Creating a new neighborhood with homes, offices, parks and shops surrounding the new Transit Center

The first phase of the project includes building a new five-story Transit Center with an above-grade bus level, ground-floor, concourse, and two below-grade rail levels serving Caltrain and future California High Speed Rail. Phase I will also create new bus ramps that will connect the Transit Center to a new off-site bus storage facility and the San Francisco-Oakland Bay Bridge. Designed by Pelli Clarke Pelli Architects (PCPA), the new Transit Center will feature a 5.4 acre park on the roof of the bus and rail station. A complementary Transit Tower designed by PCPA and developed by Hines will be built adjacent to the Transit Center and will provide additional financing for the project. Passenger service for all the transit systems using the Transit Center will continue uninterrupted while construction of the new facility continues. Operations at the temporary bus terminal facility began in August 2010. The temporary terminal will serve transit riders while the new Transit Center is being constructed. Construction of the new Transit Center began in summer 2010 and is scheduled to be completed late 2017. The former bus ramp servicing the Transbay Terminal was designed to accommodate the rail systems that used the Terminal in the 1940s and 1950s. New elevated bus ramps that enter the Transit Center from the west will eliminate the need for the seismically deficient east bus loop, while maintaining direct bus connections to and from the Transbay Transit Center and the Bay Bridge. The new reduced bus ramp system will also open up parcels of land for development opportunities that will help finance the transportation facilities. Once constructed, the new Transit Center will accommodate more than 100,000 passengers each weekday and more than 45 million people per year and make public transportation a convenient and accessible option for everyone who lives in, works in, and visits the San Francisco Bay Area.

Webcor Obayashi Joint Venture
Transbay Transit Center Field Office
175 Beale Street
San Francisco, CA 94105-1801
Main Phone: 415-9785-5700