Link21, formerly called the New Transbay Rail Crossing, is a project spearheaded by the Bay Area Rapid Transit District (BART) and Capitol Corridor Joint Powers Authority to improve rail connections in the San Francisco Bay Area and the Northern California Megaregion. The featured project in Link21 is a new tunnel providing an electrified rail connection between San Francisco and Oakland.  

The overall pricetag for the transbay crossing has been estimated at $3.9 billion; cost estimates are to be updated as the Link21 project is further defined.

As described on the attached fact sheet, Link21 is a program intended to connect and improve the rail network in the Northern California megaregion, which includes the Monterey Bay Area. A major component of the program is a new electrified transbay rail tunnel crossing between San Francisco and Oakland, to be utilized by BART, Caltrain and Capital Corridor (once the latter services are electrified). Although current rail travel to and from Monterey County and the surrounding Central Coast region to the San Francisco Bay Area is relatively low, future travel patterns predict increasing commutes, particularly once commute-hour rail service to Salinas is established. Two articles about the project are provided as web attachments.

Sadie Graham, BART Acting Link21 Director, and Camille Tsao, Capitol Corridor Link21 Program Manager, will present the project, initial findings and the overall program at the meeting.

• May 13, 2021 article in the SF Weekly, "A NorCal public transit wishlist"
• May 13, 2021 article in the SF Weekly, "Plan to connect NorCal by rail gains steam"