Caltrain Construction and Maintenance: March 20 - 23, 2012

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March 20, 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. A total of 228 piles have been driven to date. At times, noise levels could be as high as 75 decibels.

This work will require temporary lane closures and delays at the San Bruno San Mateo Avenues, and Angus Avenue intersections. 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, will be done from 7 a.m. to 4 p.m. Temporary shoring will be installed in preparation for concrete pouring. Crews will locate and perform work on utilities which may involve driving light duty construction vehicles through city streets.

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
Tuesday, March 20 through Thursday, March 22, crews will operate light on-track machinery to grind and align tracks between 22^nd Street and South San Francisco stations. Crews will also weld and grind tracks between the Bayshore and South San Francisco stations.

San Bruno to Millbrae
Tuesday, March 20 through Friday, March 23, crews will excavate, lay utilities, grade, and remove ballast rock along the right-of-way between the San Bruno and Millbrae stations.

Redwood City to Menlo Park
Tuesday, March 20 through Thursday, March 23, crews will operate light on-track machinery to remove and replace rail ties between Redwood City and Menlo Park stations.

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