Grade Crossing Improvement Projects in San Mateo and Menlo Park

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Caltrain, is working to improve the safety at 5 at-grade crossings (intersections where train tracks cross a street) in San Mateo and Menlo Park. These improvements will increase the safety for vehicles, pedestrians and cyclists.

Project Details

Improvements include more clearly-marked pedestrian crossings with new paint striping and lettering, and pavement markers. The improvement plan also calls for the installation of a fixed median with flexible bollards. The median is designed to prevent motorists from driving around lowered crossing gates.

In limited locations, installation of the median and flexible bollards will permanently alter driveway access. See illustrative graphic above depicting general elements of planned improvements. 

Grade crossing improvement sites include:

  • 1st Ave. and S. Railroad Ave., San Mateo
  • 2nd Ave. and S. Railroad Ave., San Mateo
  • 3rd Ave. and S. Railroad Ave., San Mateo
  • Glenwood Ave. and Garwood Way, Menlo Park
  • Oak Grove Ave. and Merrill St, Menlo Park


The majority of active construction work in Menlo Park and San Mateo has been completed. Crews may continue to be on-site to complete minor paining and re-striping work over the next few weeks. Work hours will be Monday through Friday from 7:00 a.m. to 5:00 p.m. We appreciate the community's patience and cooperation as we've worked to improve the safety of these grade crossings.  


State Funding: $1.4M

Community Impacts During Construction
During work hours, it may be necessarily to temporarily re-route traffic (vehicle and bicycle) around lane closures at each crossing. Flaggers will be in-place to help re-route traffic safely. We do not anticipate any parking impacts during active construction. Caltrain worked to minimize noise and other disruptions as much as possible. 

Completed Crossings - 2018

Contact Information

For additional questions or concerns regarding this project, please call our dedicated Construction Outreach Line at 650.508.7726 or email

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