Caltrain Construction and Maintenance: March 3 - 9, 2012

By

March 2, 2012

Construction

San Bruno Grade Separation Project

Pile driving, which is the first step in the construction of the foundation of the grade separation, began last month. The pile driving, which can be very noisy, will be limited to weekday daytime hours from 9 a.m. to 3 p.m. The work will involve excavation, drilling and machines that hammer or drive columns into the ground. A total of 361 piles will be driven into the ground over the course of six to eight weeks.

This work will require temporary lane closures and delays at the San Bruno and San Mateo avenues intersection. Traffic cones and flaggers will direct motorists and pedestrians around the affected areas.

Other work, which includes digging with a backhoe, mini-excavator, and jackhammer and the loading and unloading of gravel, will be done from 7 a.m. to 4 p.m. Temporary scaffolding and structural support will be installed in preparation for excavation work and demolition of concrete walls near the BART vent structure will occur. Sewer lines and manholes will be installed and signage will be installed at the temporary station. At times, noise levels could be as high as 75 decibels.

Night work will take place from Saturday, March 4 to Thursday, March 8, between 8 p.m. and 4 a.m., outside of peak passenger service hours. Crews will use generators to power portable light towers and work will involve the loading and unloading of gravel. Work will be done in accordance with Caltrain and city agreements and ordinances.

The $147 million project will elevate the Caltrain tracks above three existing at-grade street crossings at San Bruno, San Mateo and Angus avenues. A new elevated Caltrain station between San Bruno and San Mateo avenues will replace the station at Sylvan Avenue.

For more information, please call the dedicated outreach line at 650.508.7726 or email sbgradesep@caltrain.com.

Maintenance

Caltrain will perform routine maintenance at several locations next week. To avoid delays to passengers, the work will take place Sunday through Thursday from 8 p.m. to 6 a.m. There will be some construction noise but crews will work as quietly as possible. For more information about this type of work, click here.

San Francisco to Millbrae
Sunday, March 4, crews will weld and grind tracks between the San Francisco and Broadway stations. Also on March 4, crews will operate light on-track machinery to load and unload gravel and dirt between the South San Francisco and Millbrae stations.

Monday, March 5 through Thursday, March 8, crews will operate light on-track machinery to grind and align tracks and weld rails between the San Francisco and South San Francisco stations. And, crews will excavate and grade along the right-of-way, operate light on-track machinery to load and unload gravel between South San Francisco and Millbrae stations.

Millbrae to Belmont
Sunday, March 4, crews will operate light on-track machinery to grind and align tracks between the Millbrae and Belmont stations.

San Carlos to Redwood City
Monday, March 5 through Thursday, March 8, crews will operate light on-track machinery to grind tracks between the San Carlos and Redwood City stations.

Santa Clara to San Jose
Monday, March 5 through Thursday, March 8, crews will operate light on-track machinery to remove and replace rail ties between the Lawrence and San Jose Diridon Stations.

San Jose
Sunday, March 4, crews will operate light on-track machinery to remove and replace rail ties between the San Jose and Tamien stations.

###