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Construction Overview

Caltrain electrification construction activities will take place between the 4th and King Station in San Francisco to Tamien Station in San Jose. Construction activities include locating underground utilities, testing soil conditions, inspecting signal/communication equipment, pruning/removing trees, and installing foundations in preparation for the installation and operation of the Overhead Contact System that will power the new electric trains. Work will be performed during the day and at night. In order to limit the impact to regular train service, night work will occur between 8 p.m. and 6 a.m. when there are fewer regular service trains.

SF tunnel work is underway! For more information click here.

Construction Map


Click the map below for construction progress along the corridor. Work is organized by four segment areas, with work occurring in segments 2 and 4 followed by work in segments 1 and 3. Current work is indicated by the red circle iconred circles on the map. Last Updated: November 19, 2018.

Work Segment 1
San Francisco
Brisbane
Work Segment 2
South S.F.
San Bruno
Millbrae
Burlingame
San Mateo
Belmont
San Carlos
Redwood City
Uninc. San Mateo County
Atherton
Menlo Park
Work Segment 3
Menlo Park
Palo Alto
Mountain View
Sunnyvale
Santa Clara
Work Segment 4
Santa Clara
San Jose

Weekly Updates


For the upcoming week, the activities associated with the electrification infrastructure component of the CalMod Program are the following. Sign up for weekly updates here.

For more additional information about construction, please visit our City Specific Resources page.

San Francisco

Caltrain will be performing work in the four tunnels in San Francisco. Crews will perform grouting and drilling work in the tunnels as well as notching work to provide additional clearance for the new electric trains. Crews will also perform potholing work outside of the tunnels. Weekend tunnel work will be around the clock from Friday evening to Monday morning. Weekday work will be from 8 p.m. to 5 a.m. For more information on the tunnel work, visit www.calmod.org/SFTunnels. We apologize for any inconvenience this may cause and the field team will work as quietly as possible.

For more additional information about construction in San Francisco, please visit our Resources page.

Brisbane

No work anticipated this week.

For more additional information about construction in Brisbane, please visit our Resources page.

South San Francisco

On January 19 through January 25, Caltrain will be working during the day to transport equipment at the Traction Power Substation facility and to locate underground utilities, and during the night to install conduit. Day work hours will be from 7 a.m. to 7 p.m. Night work hours will be from 7 p.m. to 6 a.m. We apologize for any inconvenience this may cause and the field team will work as quietly as possible. During construction motorists and pedestrians may experience intermittent delays while crews move equipment through at-grade crossings.

During work hours at the South San Francisco station all passengers will board and de-board from the same platforms. Please look for the signs to indicate which platform to use. If you have any questions, feel free to call Caltrain Customer Service at 1.800.660.4287.

For more additional information about construction in South San Francisco, please visit our Resources page.

San Bruno

On January 19 through January 25, Caltrain will be working during the day to locate underground utilities, and during the night to install conduit. Day work hours will be from 7 a.m. to 7 p.m. Night work hours will be from 7 p.m. to 6 a.m. We apologize for any inconvenience this may cause and the field team will work as quietly as possible. During construction motorists and pedestrians may experience intermittent delays while crews move equipment through at-grade crossings.

The undercrossing located on the Huntington Avenue and San Mateo Avenue intersection will be closed from Friday, January 25 at 10 p.m. to Saturday, January 26 at 5 a.m. for Caltrain to install foundations. For additional information about the closure, please visit our Resources page.

During work hours at the San Bruno station all passengers will board and de-board from the same platforms. Please look for the signs to indicate which platform to use. If you have any questions, feel free to call Caltrain Customer Service at 1.800.660.4287.

For more additional information about construction in San Bruno, please visit our Resources page.

Millbrae

On January 19 through January 25, Caltrain will be working during the day to locate underground utilities, and during the night to install equipment on poles, install conduit, install foundations and relocate signal cables. Day work hours will be from 7 a.m. to 7 p.m. Night work hours will be from 7 p.m. to 6 a.m. We apologize for any inconvenience this may cause and the field team will work as quietly as possible. During construction motorists and pedestrians may experience intermittent delays while crews move equipment through at-grade crossings.

During work hours at the Millbrae station all passengers will board and de-board from the same platforms. Please look for the signs to indicate which platform to use. If you have any questions, feel free to call Caltrain Customer Service at 1.800.660.4287.

For more additional information about construction in Millbrae, please visit our Resources page.

Burlingame

On January 19 through January 25, Caltrain will be working during the day to locate underground utilities, and during the night to install equipment on poles, install conduit, install foundations and relocate signal cables. Day work hours will be from 7 a.m. to 7 p.m. Night work hours will be from 7 p.m. to 6 a.m. We apologize for any inconvenience this may cause and the field team will work as quietly as possible. During construction motorists and pedestrians may experience intermittent delays while crews move equipment through at-grade crossings.

Oak Grove Avenue will be temporarily closed from Saturday, January 19 at 10 p.m. to Sunday, January 20 at 5 a.m. for Caltrain to install foundations. For more information about the closure, please visit our Resources page.

During work hours at the Burlingame station all passengers will board and de-board from the same platforms. Please look for the signs to indicate which platform to use. If you have any questions, feel free to call Caltrain Customer Service at 1.800.660.4287.

For more additional information about construction in Burlingame, please visit our Resources page.

San Mateo

On January 19 through January 25, Caltrain will be working during the day to locate underground utilities and perform a concrete demolition at the San Mateo station, and during the night to install equipment on poles, install foundations and relocate signal cables. Day work hours will be from 7 a.m. to 7 p.m. Night work hours will be from 7 p.m. to 6 a.m. We apologize for any inconvenience this may cause and the field team will work as quietly as possible. During construction motorists and pedestrians may experience intermittent delays while crews move equipment through at-grade crossings.

During work hours at the San Mateo station all passengers will board and de-board from the same platforms. Please look for the signs to indicate which platform to use. If you have any questions, feel free to call Caltrain Customer Service at 1.800.660.4287.

For more additional information about construction in San Mateo, please visit our Resources page.

Belmont

On January 19 through January 25, Caltrain will be working during the day to locate underground utilities, and during the night to install foundations and relocate signal cables. Day work hours will be from 7 a.m. to 7 p.m. Night work hours will be 7 p.m. to 6 a.m. We apologize for any inconvenience this may cause and the field team will work as quietly as possible.

During work hours at the Belmont station all passengers will board and de-board from the same platforms. Please look for the signs to indicate which platform to use. If you have any questions, feel free to call Caltrain Customer Service at 1.800.660.4287.

For more additional information about construction in Belmont, please visit our Resources page.

San Carlos

On January 19 through January 25, Caltrain will be working during the day to locate underground utilities, and during the night to install foundations and relocate signal cables. Day work hours will be from 7 a.m. to 7 p.m. Night work hours will be 7 p.m. to 6 a.m. We apologize for any inconvenience this may cause and the field team will work as quietly as possible.

During work hours at the San Carlos station all passengers will board and de-board from the same platforms. Please look for the signs to indicate which platform to use. If you have any questions, feel free to call Caltrain Customer Service at 1.800.660.4287.

For more additional information about construction in San Carlos, please visit our Resources page.

Redwood City

On January 19 through January 25, Caltrain will be working during the day to clear vegetation at the Switching Station facility, and during the night to locate underground utilities. Day work hours will be from 7 a.m. to 7 p.m. Night work hours will be 7 p.m. to 6 a.m. We apologize for any inconvenience this may cause and the field team will work as quietly as possible. During construction motorists and pedestrians may experience intermittent delays while crews move equipment through at-grade crossings.

During work hours at the Redwood City station all passengers will board and de-board from the same platforms. Please look for the signs to indicate which platform to use. If you have any questions, feel free to call Caltrain Customer Service at 1.800.660.4287.

For more additional information about construction in Redwood City, please visit our Resources page.

Unincorporated San Mateo County

On January 19 through January 25, Caltrain will be working during the day and night to locate underground utilities. Day work hours will be from 7 a.m. to 7 p.m. Night work hours will be 7 p.m. to 6 a.m. We apologize for any inconvenience this may cause and the field team will work as quietly as possible. During construction motorists and pedestrians may experience intermittent delays while crews move equipment through at-grade crossings.

For more additional information about construction in Unincorporated San Mateo County, please visit our Resources page.

Atherton

On January 19 through January 25, Caltrain will be working during the day and night to locate underground utilities. Day work hours will be from 7 a.m. to 7 p.m. Night work hours will be 7 p.m. to 6 a.m. We apologize for any inconvenience this may cause and the field team will work as quietly as possible. During construction motorists and pedestrians may experience intermittent delays while crews move equipment through at-grade crossings.

During work hours at the Atherton station all passengers will board and de-board from the same platforms. Please look for the signs to indicate which platform to use. If you have any questions, feel free to call Caltrain Customer Service at 1.800.660.4287.

For more additional information about construction in Atherton, please visit our Resources page.

Menlo Park

On January 19 through January 25, Caltrain will be working during the day to locate underground utilities, prune and remove trees along the project route and perform a concrete demolition at the Menlo Park station. Caltrain will be working during the night to locate underground utilities. Day work hours will be 7 a.m. to 7 p.m. Night work hours will be 7 p.m. to 6 a.m.  We apologize for any inconvenience this may cause and the field team will work as quietly as possible.

During work hours at the Menlo Park station all passengers will board and de-board from the same platforms. Please look for the signs to indicate which platform to use. If you have any questions, feel free to call Caltrain Customer Service at 1.800.660.4287.

For more additional information about construction in Menlo Park, please visit our Resources page.

Palo Alto

On January 19 through January 25, Caltrain will be working during the day to locate underground utilities, prune and remove trees along the project route and perform a concrete demolition at the Palo Alto station. Caltrain will be working during the night to locate underground utilities. Day work hours will be 7 a.m. to 7 p.m. Night work hours will be 7 p.m. to 6 a.m.  We apologize for any inconvenience this may cause and the field team will work as quietly as possible.

During work hours at the Palo Alto station all passengers will board and de-board from the same platforms. Please look for the signs to indicate which platform to use. If you have any questions, feel free to call Caltrain Customer Service at 1.800.660.4287.

For more additional information about construction in Palo Alto, please visit our Resources page.

Mountain View

On January 19 through January 25, Caltrain will be working during the day to locate underground utilities, prune and remove trees along the project route and perform a concrete demolition at the Mountain View station. Caltrain will be working during the night to locate underground utilities. Day work hours will be 7 a.m. to 7 p.m. Night work hours will be 7 p.m. to 6 a.m.  We apologize for any inconvenience this may cause and the field team will work as quietly as possible.

During work hours at the Mountain View station all passengers will board and de-board from the same platforms. Please look for the signs to indicate which platform to use. If you have any questions, feel free to call Caltrain Customer Service at 1.800.660.4287.

For more additional information about construction in Mountainview, please visit our Resources page.

Sunnyvale

On January 19 through January 25, Caltrain will be working during the day to locate underground utilities, prune and remove trees along the project route and perform a concrete demolition at the Sunnyvale station. Caltrain will be working during the night to locate underground utilities. Day work hours will be 7 a.m. to 7 p.m. Night work hours will be 7 p.m. to 6 a.m.  We apologize for any inconvenience this may cause and the field team will work as quietly as possible.

During work hours at the Sunnyvale station all passengers will board and de-board from the same platforms. Please look for the signs to indicate which platform to use. If you have any questions, feel free to call Caltrain Customer Service at 1.800.660.4287.

For more additional information about construction in Sunnyvale, please visit our Resources page.

Santa Clara

On January 19 through January 25, Caltrain will be working during the day to locate underground utilities and install conduit, and during the night to install conduit. Day work hours will be from 7 a.m. to 7 p.m. Night work hours will be 7 p.m. to 6 a.m. We apologize for any inconvenience this may cause and the field team will work as quietly as possible.

During work hours at the Santa Clara station all passengers will board and de-board from the same platforms. Please look for the signs to indicate which platform to use. If you have any questions, feel free to call Caltrain Customer Service at 1.800.660.4287.

For more additional information about construction in Santa Clara, please visit our Resources page.

San Jose

On January 19 through January 25, Caltrain will be working during the day to locate underground utilities, install conduit, grade at the Paralleling Station facility and install a ductbank and manholes at the Traction Power Substation facility. Caltrain will be working during the night to locate install conduit. Day work hours will be from 7 a.m. to 7 p.m. We apologize for any inconvenience this may cause and the field team will work as quietly as possible.

During work hours at the San Jose stations, all passengers will board and de-board from the same platforms. Please look for the signs to indicate which platform to use. If you have any questions, feel free to call Caltrain Customer Service at 1.800.660.4287.

For more additional information about construction in San Jose, please visit our Resources page.

Construction Activities


CalMod