Caltrain Construction and Maintenance: March 10 - 16, 2012

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March 9, 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. 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 on Saturday, March 10, 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 maintenance work on the pile driving machinery. 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 Friday 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 South San Francisco
Sunday, March 11 through Thursday, March 15, crews will operate light on-track machinery to grind and align tracks between the 22^nd Street and South San Francisco stations. Crews will also weld and grind tracks between the Bayshore and South San Francisco stations.

Sunnyvale to San Jose
Sunday, March 11, crews will operate light on-track machinery to remove and replace rail ties between the Lawrence and San Jose Diridon stations.

South San Francisco to Millbrae
Monday, March 12 through Thursday, March 15, crews will excavate and grade along the right-of-way between the South San Francisco and Millbrae stations.

Redwood City
Monday, March 12 through Friday, March 16, crews will weld and grind concrete at the rail crossing at Whipple Avenue between the San Carlos and Redwood City stations. One lane will be temporarily closed each night to accommodate this work. Traffic cones and flaggers will direct motorists and pedestrians around the affected areas.

Redwood City to Palo Alto
Monday, March 12 through Thursday, March 15, crews will operate light on-track machinery to remove and replace rail ties between the Redwood City and Palo Alto stations.

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