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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.

Learn what CEMOF is and how it’s being updated.

Learn more about the SF tunnel work here.

Learn about staying safe around the new electric overhead wires 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: December 1, 2019.

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

On May 23 to May 29, Caltrain will be working during the night to install equipment on the rail. 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.

Starting as soon as June 1, Caltrain will begin construction of the Paralleling Station facility located at the Bayshore Station parking lot. The Bayshore Station will remain open during construction. To learn more, please visit our Resources page.

During work hours at the 22nd St. 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 Francisco, please visit our Resources page.

Brisbane

On May 23 to May 29, Caltrain will be working during the night to install equipment on the rail. 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.

Starting as soon as June 1, Caltrain will begin construction of the Paralleling Station facility located at the Bayshore Station parking lot. The Bayshore Station will remain open during construction. To learn more, please visit our Resources page.

.During work hours at the Bayshore 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 Brisbane, please visit our Resources page.

South San Francisco

On May 23 to May 29, Caltrain will be working the day to install conduit. Caltrain will be working during the night to string wire on poles and install equipment on the rail. 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 May 23 to May 29, Caltrain will be working during the day to install conduit. Caltrain will be working during the night to string wire on poles and install equipment on the rail. 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 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 May 23 to May 29, Caltrain will be working during the night to string wire on poles and install equipment on the rail. 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 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 May 23 to May 29, Caltrain will be working during the night to string wire on poles and install equipment on the rail. 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 Burlingame and Broadway 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 Burlingame, please visit our Resources page.

San Mateo

On May 23 to May 29, Caltrain will be working during the night to install equipment on the rail. 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.

Caltrain’s Hillsdale Station in San Mateo has temporarily closed for up to six months as part of the 25th Ave Grade Separation Project. During the closure, trains that currently stop at the Hillsdale Station will now serve the Belmont Station instead. A new weekday and weekend timetable, effective May 16, will be made available online as soon as possible, pending service updates related to COVID-19.

During work hours at the San Mateo, Hayward Park and Hillsdale 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 Mateo, please visit our Resources page.

Belmont

On May 23 to May 29, Caltrain will be working during the night to install equipment on the rail. 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 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 May 23 to May 29, Caltrain will be working during the night to install equipment on the rail. 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 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 May 23 to May 29, Caltrain will be working during the day to install conduit. Caltrain will be working during the night to install equipment on the rail. 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.

Beginning in late May, Electrification crews will be installing two gantries at the Redwood City Switching Station, which has been under construction since last year. For more information on the facilities that will power the electric trains, please visit our project website.

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 May 23 to May 29, Caltrain will be working during the day to install conduit. Caltrain will be working during the night to install equipment on the rail. 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.

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

Atherton

On May 23 to May 29, Caltrain will be working during the day to install conduit. Caltrain will be working during the night to install equipment on the rail. 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.

Crews will be working during the day to install a signal house on Caltrain property near Watkins Avenue. Construction activities include excavation, pouring of concrete and the construction of a new signal house that will help regulate signaling power to the new electric trains. Work will take place during the weekdays between 7 a.m. and 5 p.m. Limited Saturday work may be required. To learn more, please visit our Resources page

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 May 23 to May 29, Caltrain will be working during the day to prune and remove trees along the project route, locate underground utilities and locate underground utilities at the Menlo Park station. Caltrain will be working during the night to install foundations and install equipment on the rail. 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 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 May 23 to May 29, Caltrain will be working during the day to prune and remove trees along the project route, locate underground utilities and locate underground utilities at the Palo Alto stations. Caltrain will be working during the night to install foundations and install equipment on the rail. 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.

Caltrain has begun construction of the Paralleling Station facility located near 187 Page Mill Road on Caltrain property in Palo Alto. Crews will utilize a staging area in a portion of the California Avenue Station parking lot. Parking spaces #6-47, and #98-#118 will be temporarily closed until December 31, 2021. To learn more, please visit our Resources page.

From 8 p.m. on May 29 to 5 a.m. on May 30 there will be a temporary closure of the Palo Alto Avenue railroad crossing.

From 8 p.m. on May 29 to 5 a.m. on May 30 there will be a temporary closure of the Churchill Avenue railroad crossing.

To learn more about the railroad crossing closures, please visit our Resources page.

During work hours at the Palo Alto and California 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 Palo Alto, please visit our Resources page.

Mountain View

On May 23 to May 29, Caltrain will be working during the day to prune and remove trees along the project route, locate underground utilities and locate underground utilities at the Mountain View stations. Caltrain will be working during the night to install foundations and install equipment on the rail. 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.

Between the period of May 26 and June 2, Caltrain will be performing work along the Caltrain right-of-way in Mountain View
that will require the temporary closure of the right northbound lane of Evelyn Avenue between Pioneer Way and Moorpark Way. The
temporary lane closure is required due to tree pruning and removal activities along the Caltrain Electrification project area along Evelyn Avenue.Work will take place weekdays, May 26 through June 2 between 7:30 am to 4:00 pm. To learn more please visit our Resources page.

During work hours at the Mountain View and San Antonio 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 Mountain View, please visit our Resources page.

Sunnyvale

On May 23 to May 29, Caltrain will be working during the day to prune and remove trees on the project route, locate underground utilities and locate underground utilities at the Sunnyvale stations. Caltrain will be working during the night to install foundations, install beams on poles, remove abandoned signal cable and install equipment on the rail. 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.

Beginning in late May, Electrification crews will be installing two gantries at the Sunnyvale Paralleling Station, which has been under construction since last year. For more information on the facilities that will power the electric trains, please visit our project website.

Caltrain Electrification crews have permanently closed parking spaces #421-436, #452-455, and #458-463 in the northern portion of the Sunnyvale Station parking lot in order to construct a paralleling station which will help regulate power to the new electric trains. Parking spaces #437-441, #456-457, and #464-472, also located in the northern portion of the Sunnyvale Station parking lot, will be temporarily fenced off in order for crews to install a staging area to support this construction. Four (4) ADA parking stalls will be temporarily re-located to the north end of the parking lot adjacent to the northern sidewalk ramp. To learn more about the parking closures, please visit our Resources page.

During work hours at the Sunnyvale and Lawrence 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 Sunnyvale, please visit our Resources page.

Santa Clara

On May 23 to May 29, Caltrain will be working during the day to locate underground utilities and install conduit. Caltrain will be working during the night to install foundations, install beams on poles, remove abandoned signal cable and install equipment on the rail. 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.

Caltrain Electrification crews are staging materials and equipment between the Santa Clara Station and the College Park Station in San Jose. Construction staging will occur along the Caltrain right-of-way south of the Santa Clara Station. Caltrain has temporarily closed parking spaces #256-269 and #277-290 at the Santa Clara station for crews to stage equipment. To learn more about staging area construction activities, please visit our Resources page.

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 May 23 to May 29, Caltrain will be working during the day to install conduit and install signal equipment. Caltrain will be working during the night to locate underground utilities, remove underground utilities, remove abandoned signal cable and install equipment on the rail. 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.

Beginning as soon as Friday, May 15, 2020, crews will begin installing temporary shoring near the CEMOF as part of the facility modifications. Metal sheet piles will be installed in the ground to create a wall for a vehicle maintenance pit. Neighbors should expect some noise. This work will happen during daytime weekday work hours (7:00 a.m. to 5:00 p.m.) and is expected to last up to four weeks.

Caltrain Electrification crews have begun staging materials and equipment between the Santa Clara Station and the College Park Station in San Jose. Construction staging will occur along the Caltrain right-of-way south of the Santa Clara Station. Caltrain has temporarily closed parking spaces #256-269 and #277-290 at the Santa Clara station for crews to stage equipment. To learn more about staging area construction activities, please visit our Resources page.

During work hours at the Diridon, Tamien and College Park 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 information, please call the dedicated outreach line at 650.508.6499; visit the website at www.calmod.org or email calmod@caltrain.com.

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

Construction Activities


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