San Bruno Grade Separation

Overview
The $147 million San Bruno Grade Separation Project will elevate the Caltrain tracks above three existing at-grade street crossings at San Bruno, San Mateo and Angus avenues. This will improve safety for both motorists and pedestrians, and it will reduce traffic congestion to and from Highway 101 in the City of San Bruno.

In addition, a new elevated Caltrain station will be constructed between San Bruno and San Mateo avenues, replacing the existing station at Sylvan Avenue. A total of 201 parking spaces and a “kiss and ride” lot will serve the station at the site of the former San Bruno Lumber.

With respect to pedestrian safety and amenities, the project will provide three pedestrian underpasses - one in the vicinity of Sylvan Avenue, one at the new station and another between Euclid Avenue and Walnut Street. Additionally, elevators will provide easy access for Caltrain customers. Streets and sidewalks, including those at Posy Park, also will be improved.

Construction Updates

Day work will occur Monday, Aug. 12, to Friday, Aug. 16, from 7 a.m. to 6 p.m. This week, crews will install lighting at the project site, and pave Walnut Avenue. Crews also will continue painting the exterior and install the utilities at the Sylvan pedetrian tunnel.

Night work will occur Sunday, Aug. 11, to Thursday, Aug. 15, between 8 p.m. to 5 a.m. this week. Crews will be working on the San Mateo and San Bruno bridge platforms. There will be some construction noise, but crews will work as quietly as possible.

During the month of August and September, road closures will occur on San Mateo and San Bruno avenues. Construction crews will continue excavating and removing portions of the roadway to lower streets and allow for greater vehicular clearance under the crossings. Once completed, the clearance for the intersection will be approximately 15 feet. Road work at Angus Avenue was completed at the end of July. Due to unforseen utility issues, the road closure schedule has been pushed back a week. The following is an update list of road closure times and dates:

• San Mateo Avenue, between Huntington and San Bruno avenues, will be closed from 8 p.m. Friday, Aug. 16, until 5 a.m. Monday, Aug. 19.

• San Bruno Avenue, between First and Huntington avenues, will be closed on two separate occasions. The first portion of the work will require partial closure of the street from 8 p.m. Friday, Aug. 23, until 5 a.m. Monday, Aug. 26. The second portion will completely shut down San Bruno Avenue at Huntington Avenue. That closure is scheduled for 7 a.m. Tuesday, Sept. 3, until 5 p.m. Tuesday, Sept. 10.

During the closures, Caltrain will establish detour signs for pedestrians and motorists to help with traffic flow. During the full shutdown of San Bruno Avenue, electronic signs will be displayed on San Bruno Avenue and on El Camino Real directing traffic around the closure.  Night work will be done in accordance with Caltrain and city agreements and ordinances. We apologize for any inconvenience this may cause you.

PROJECT PHOTOS

Project Documents & Notices
UPDATED - Road Closure Notice - Aug. 8, 2013
August Road Closure Notice - Aug. 1, 2013
Updated Road Closure Notice - July 22, 2013
SBGS Road Closure Map - July 18, 2013
Project Fact Sheet
Detour map- January 11 - 18, 2011
Community Meeting Presentation- July 13, 2011
Community Meeting Presentation- September 30, 2010
Community Meeting Presentation- March 31, 2010

Street Closure and Community Meeting Notice- January 9, 2012
Community Meeting Notice- July 13, 2011
Temporary Crossing Closures - Scott Street & South Linden Avenue
First Avenue Cul-de-sac Notice
Scott Street Night Work Notice
Temporary Station Night Work Notice

Lead Agency: Caltrain

Contractors: Granite Construction Company

Project Limits: South Linden Avenue to San Felipe Avenue

Construction Cost: $155 million
(SMCTA: $92.5 million; State: $55.9 million; Federal: $6.6 million)

Began Construction: November 2010

Completed Construction: December 2013

For additional questions or concerns regarding the construction project, please contact our dedicated outreach line at 650.508.7726 or email sbgradesep@caltrain.com. For questions about Caltrain service, please contact 800.660.4287.

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tcb - 8/8/13