• Sign up for emails

Curious about the construction activities?

Get weekly construction updates delivered right to your inbox.

Sign Me Up!

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: July 31, 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.

San Francisco

October 13 to October 19, Caltrain will perform work in the four tunnels in San Francisco. Crews will perform survey, grout and drilling work in the tunnels. Crews will also perform potholing work outside of the tunnels. Weekend 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 construction work anticipated.

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

South San Francisco

October 13 through October 19, Caltrain will be working during the day to install foundations at the Traction Power Substation Facility and install conduit, and during the night to relocate signal cables, install equipment on poles and install foundations. 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 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

October 13 through October 19, Caltrain will be working during the day to install conduit, and during the night to relocate signal cables, install equipment on poles and install foundations. 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 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 the project hotline at 650-399-9659 or toll-free at 855-463-4373.

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

Millbrae

October 13 through October 19, Caltrain will be working during the day to locate underground utilities and install conduit, and during the night to install foundations, relocate signal cables and to install equipment on poles. 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 the project hotline at 650-399-9659 or toll-free at 855-463-4373.

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

Burlingame

October 13 through October 19, Caltrain will be working during the day to locate underground utilities, install foundations and install conduit, 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 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 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 the project hotline at 650-399-9659 or toll-free at 855-463-4373.

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

San Mateo

October 13 through October 19, Caltrain will be working during the day to locate underground utilities and install foundations, 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 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 the project hotline at 650-399-9659 or toll-free at 855-463-4373.

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

Belmont

October 13 through October 19, Caltrain will be working during the day to locate underground utilities and install foundations, 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 the project hotline at 650-399-9659 or toll-free at 855-463-4373.

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

San Carlos

October 13 through October 19, Caltrain will be working during the day to locate underground utilities and during the night to 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 the project hotline at 650-399-9659 or toll-free at 855-463-4373.

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

Redwood City

October 13 through October 19, Caltrain will be working during the day to locate underground utilities, and during the night to locate underground utilities 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 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 the project hotline at 650-399-9659 or toll-free at 855-463-4373.

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

Unincorporated San Mateo County

October 13 through October 19, Caltrain will be working during the day to locate underground utilities, and during the night to locate underground utilities 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 construction motorists and pedestrians may experience intermittent delays while crews move equipment through at-grade crossings.

During work hours at the San Mateo County 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 Unincorporated San Mateo County, please visit our Resources page.

Atherton

October 13 through October 19, Caltrain will be working during the day to locate underground utilities, and during the night to locate underground utilities 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 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 the project hotline at 650-399-9659 or toll-free at 855-463-4373.

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

Menlo Park

October 13 through October 19, Caltrain will be working during the day to locate underground utilities and prune and remove trees along the project route, and 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 the project hotline at 650-399-9659 or toll-free at 855-463-4373.

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

Palo Alto

October 13 through October 19, Caltrain will be working during the day to locate underground utilities and prune and remove trees along the project route, and 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 the project hotline at 650-399-9659 or toll-free at 855-463-4373.

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

Mountain View

October 13 through October 19, Caltrain will be working during the day to locate underground utilities and prune and remove trees along the project route, and 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 the project hotline at 650-399-9659 or toll-free at 855-463-4373.

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

Sunnyvale

October 13 through October 19, Caltrain will be working during the day to locate underground utilities and prune and remove trees along the project route, and 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 the project hotline at 650-399-9659 or toll-free at 855-463-4373.

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

Santa Clara

October 13 through October 19, Caltrain will be working during the day to locate underground utilities, and at night to locate underground utilities and relocate signal cables. Day work hours will be 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 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 the project hotline at 650-399-9659 or toll-free at 855-463-4373.

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

San Jose

October 13 through October 19, Caltrain will be working during the day to locate underground utilities and install a ductbank and manholes at the Traction Power Substation facility, and at night to locate underground utilities 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 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 the project hotline at 650-399-9659 or toll-free at 855-463-4373.

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

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

Construction Activities


CalMod