By Tasha Bartholomew, @tashbart

CT Bus Bridge Big ButtonCaltrain would like to remind its riders that this weekend, June 6 & 7, the rail agency will operate a bus bridge between its Bayshore, 22nd Street and San Francisco stations to allow critical safety work to take place in its four tunnels.  Trains will operate on their regular schedules between San Jose and Bayshore.

Crews working on the rail agency’s advanced signal system, which includes positive train control, will be installing conduit and fiber along the rail corridor in San Francisco, including the four tunnels.  The CBOSS PTC project will result in improved safety by eliminating the risk of train-to-train collisions, enforcing speed limits and providing additional safety for track workers.  Additional information on the project is available at

The bus bridge will be provided by SamTrans so Caltrain customers should look for the red, white and blue buses when they get to the station.  The buses will operate on a schedule different from the trains to allow for additional travel time from the two stations in San Francisco to meet the train at the Bayshore stations.  Some buses will run directly between the San Francisco and Bayshore stations.  Please keep in mind that there will be limited capacity for luggage and bikes on the buses.

Customers who don’t want to use the bus bridge have two public transit alternatives:

  • Connect with BART at the Millbrae Transit Center; or
  • Ride Muni’s T-Third line, which travels near the Bayshore and 22nd Street stations, and across the street from the San Francisco Caltrain Station (no bikes allowed)

Caltrain will have ambassadors at the impacted stations to assist and direct customers to the bus bridge. For more information, visit or call 1.800.660.4287.


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