| 1939 |
The Transbay Transit Terminal, a California Toll Bridge Authority facility, originally was constructed in 1939 as a transportation terminal for commuter trains running between San Francisco and the East Bay and utilizing the San Francisco-Oakland Bay Bridge

Transbay Terminal circa 1940.
Note the "Key System" Train tracks running into the terminal.
|
| 1959 |
Last year that Trains ran into the Transbay Terminal. Only busses now serve the terminal. |
| 1967 |
The California Department of Transportation became concerned about the use of the terminal properties after BART inaugurated transbay service. As a result of this concern, the Division of Bay Toll Crossings (now Toll Bridge Administration) undertook a series of studies of the property...At that time it was felt that the initiation of BART transbay service would preclude the need for the property as a transportation facility. |
| 1974 | Transbay Transit Terminal Transportation Study
Prepared for the Toll Bridge Authority, State of California |
| 1988 | MTC Resolution 1876, making the Caltrain Extension a top priority for the region |
| 1994 | The Peninsula Corridor Joint Powers Board designates a site at Beale and Market streets as its preferred choice for a relocated terminal, with the Transbay Terminal as an alternative. The JPB also awarded a $2 million contract for a Draft Environmental Impact Statement/Draft Environmental Impact Report for the project. The San Mateo Transportation Authority provided matching funds, enabling the pivotal study to go forward. |
| 1997 | Funding is cut off by San Francisco Mayor Willie Brown. |
| 1999 | San Francisco's Proposition H passes. San Francisco voters voiced overwhelming support for building the downtown Caltrain extension |
| 2000 Jan |
Memorandum of Understanding between the Caltrain JPB and the City and County of San Francisco, January 25, 2000
|
| 2000 Jul |
New Transbay Terminal design unveiled (article in July 8, 2000 edition of SF Chronicle). This design includes the new downtown Caltrain station in its basement.
|
| 2001 Jan | Transbay Joint Powers Authority is formed |
| 2001 Mar |
SF Planning Department Transbay Terminal EIR Notice of Preparation ...preliminary steps in the process towards eventual construction of the new downtown Caltrain station, in the basement of a rebuilt Transbay Terminal at First and Mission Streets. This link takes you to drawings and maps of project proposals.
|
| 2001 Oct | Assembly Bill 1419 is vetoed by Governor Davis. AB1419 would have jump started the projected by transfering land |