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Caltrain Electrification, which will provide passengers with greener, faster and more frequent service, is nearing its final phase as we anticipate electrified service to begin in 2024. However, in 2023, we need to do intensive work along the corridor to complete critical construction and testing activities. To minimize the impact on weekday service and to ensure the project is completed safely and on time, Caltrain will be suspending rail service in select areas on weekends throughout the year starting February 11.

This page will have the latest information about service changes, including alternative transit options. You can also visit the Caltrain Electrification construction page for project-specific updates on construction and testing activities.

We strongly encourage riders to avoid Caltrain on the weekends, as lifeline bus bridge service is available to Caltrain-dependent riders. Plan ahead, and if you must use Caltrain, expect delays and longer travel times. Consider alternative transportation options when service disruptions are expected. Weekday service is not impacted.

Upcoming Weekend Service Changes

February 11 & 12, February 25 & 26, March 4 & 5, March 11 & 12

Use alternative transportation options during these weekends. Customers traveling into/out of San Francisco should transfer to BART at Millbrae station.

Local weekend Caltrain service will be replaced with a lifeline bus bridges between Millbrae and San Francisco stations for Caltrain dependent riders. The weekend bus bridge will serve all stops between Millbrae and San Francisco stations with timed transit connections at Millbrae Station.

Buses will have limited capacity for luggage and bikes. Use bike parking options, which are available at every affected station. There will be one ADA accessible vehicle per trip. We encourage all passengers to plan ahead and use alternative transportation options when available.

If you are using a Clipper Card while traveling on both the bus bridge and rail service, please remember to tap your card at the Clipper® reader upon boarding the train and again upon exiting the train at your final destination. Caltrain customers using the bus bridge portion of their trip do not need to make an additional payment.

  • Plan for additional travel time of at least 45 minutes due to the bus bridge when traveling through the affected area.
  • The last northbound train will depart San Jose Diridon Station at 10:28p.
  • The last southbound bus will depart San Francisco Station at 11:13p.
  • The last southbound train will depart Millbrae Station at 12:15a.

There will be regular weekend Caltrain service on February 18 & 19.
 


For shuttle service, please refer to www.caltrain.com/shuttles.

For additional questions, please contact:

Caltrain Customer Service Weekdays: 7 a.m. - 7 p.m. / Weekends & Holidays: 8 a.m. - 5 p.m., Information: 1.800.660.4287 Hearing Impaired (TTY) 650.508.6448.

There will be wayfinding signage located at the Caltrain stations to guide passengers to the bus stop locations. Look for Weekend Bus Bridge signs.

San Francisco 4th Street at Townsend Street
22nd Street Southside of 22nd Street under Interstate 280 (at existing MUNI Bus stop)
Bayshore Along Tunnel Avenue at the Station
South San Francisco Along Poletti Way (accessible from platform via pedestrian underpass)
 
San Bruno Eastside station parking lot
Millbrae West Plaza parking lot (at existing Shuttle/Bus stop)

Why is Caltrain temporarily suspending weekend service in certain areas?

The Caltrain Electrification Project will provide passengers with greener, faster, and more frequent service, and is nearing its final phase as we prepare for the start of passenger service in 2024. In 2023, we need to do intensive work along the corridor to complete critical construction and testing activities. To minimize the impact on weekday service and to ensure the project is completed safely and on time, Caltrain will be suspending rail service in select areas on weekends throughout the year starting in mid-February.

Visit the Caltrain Electrification Construction page for updates on the latest construction activities and testing.

How will weekend service be affected?

For several weekends in February and March, train service for local Caltrain-dependent riders will be replaced with bus service between Millbrae and San Francisco stations on several weekends. The weekend bus bridge will serve all stops between Millbrae and San Francisco stations with timed transit connections at Millbrae Station.

Use alternative transit options during these weekends, including timed BART connections at Millbrae. Visit www.caltrain.com/status for more information and a full list of alternative transit options.

  • Plan for additional travel time of 45 minutes due to the bus bridge when traveling through the affected area.
  • The last northbound train will depart San Jose Diridon Station at 10:28p.
  • The last southbound bus will depart San Francisco Station at 11:13p.
  • The last southbound train will depart Millbrae Station at 12:15a.

There will be additional weekend shutdowns throughout 2023. For the latest information on weekend service changes, this page will have the latest information about upcoming service changes. 

What stations are impacted and where are the bus bridge locations?

The following stations will be impacted on the weekends listed: San Francisco Station, 22nd Street Station, Bayshore Station, South San Francisco Station, San Bruno Station, and Millbrae Station.

There will be wayfinding signage located at the Caltrain stations to guide passengers to the bus stop locations. Look for Weekend Bus Bridge signs.

San Francisco 4th Street at Townsend Street
22nd Street Southside of 22nd Street under Interstate 280 (at existing MUNI Bus stop)
Bayshore Along Tunnel Avenue at the Station
South San Francisco Along Poletti Way (accessible from platform via pedestrian underpass)
 
San Bruno Eastside station parking lot
Millbrae West Plaza parking lot (at existing Shuttle/Bus stop)


Do I have to pay to ride the bus service during these weekends?

No, the bus bridge service provided during the weekend rail service disruption will be complimentary for Caltrain customers. Please purchase your fare before boarding any train segment of your trip.

How do I use a Clipper Card when the stations are closed?

If you are using a Clipper Card while traveling on both the bus bridge and rail service, please remember to tap your card upon boarding the train and again upon exiting the train at your final destination. Caltrain customers using the bus bridge portion of their trip do not need to make an additional payment.

Are the buses ADA accessible?

There will be one accessible vehicle per trip. Please note that capacity will be limited. We encourage all passengers to plan ahead and use alternative transportation options when available.

Can I bring my bike onboard the bus?

Customers are allowed to bring their bikes onboard the bus; however, please note that space is limited to a maximum of 3 bikes at a time on each bus and there may be as few as two buses on a given trip. Buses are not equipped with bike racks; rather, bikes will be stored in the luggage compartment, space permitting. Use alternative transit options when possible and consider using bike parking options that are available at every affected station. More information at www.caltrain.com/bikes.

Who do I contact if I left an item on the bus during the bus bridge?

Please complete the lost and found form at www.caltrain.com/lostandfound.

Who should I contact with additional questions about the service impacts?

For more questions, riders can call Caltrain Customer Service, Weekdays: 7 a.m. - 7 p.m. / Weekends & Holidays: 8 a.m. - 5 p.m., at 1.800.660.4287.