Grade Separation Update: Temporary Lane Closures Expected on Huntington, Angus Avenues

Work on the San Bruno Grade Separation Project will take place Saturday, Oct. 29 to Friday, Nov. 4. 

Day work will take place between the hours of 7 a.m. and 5 p.m. This work will include removing and installing traffic signs, signal system upgrades, installing and removing fences along the right-of-way, grading for the shoofly, installing drainage for the shoofly, asphalt and concrete work at the San Bruno and San Mateo avenues intersection, roadway striping, track work, and water line and sanitary sewer relocations. Motorists should expect delays. Relocation of water lines and sanitary sewers will primarily occur along Angus and Huntington avenues and may require temporary lane closures. Traffic cones and flaggers will direct motorists and pedestrians around the affected areas. 

Night work will take place from 8 p.m. to 4 a.m., outside of peak passenger service hours. This work will include signal system upgrades, grading for the shoofly, relocating communication utilities, installing drainage for the shoofly, relocating pedestrian and traffic gates at San Bruno Avenue, removing and installing traffic signs, and demolishing the former station. Work for demolishing the former station must occur at night so as not to disrupt train service and also to protect the safety of construction workers since work requires crews to be close to tracks. Digging work will require the use of a backhoe, mini-excavator and jackhammer. At times, noise levels could be as high as 75 decibels. Crews will use generators to power portable light towers. Night 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 atSan Bruno, San Mateo and Angus avenues. A new elevated Caltrain station will be constructed between San Bruno and San Mateo avenues, replacing the existing station at Sylvan Avenue.

—Caltrain