Event Center Traffic

The San Mateo County Event Center is being used as an appointment-only COVID-19 vaccination site and increased traffic is expected in the area. We are proud to support our County partners on this critical public health effort and we are working closely to manage potential impacts.

While it’s vital that we do what we can to help improve the health of our community, it’s also important that we continue with critical infrastructure projects that are already active in the area. These combined projects have increased traffic in and around the neighborhood and we are responding quickly to the evolving needs.

Traffic patterns may change suddenly, and we appreciate everyone’s patience. Please avoid the area if you can, follow all directional signs and do not go to the Event Center unless you have an appointment.

Traffic Pattern Changes

On March 1, 2021, the 25th Grade Separation Project prompted the following traffic pattern changes: 

E. 25th Avenue at S. Delaware Street

  • April 1 – Aug. 15, 2021 – closed in both directions.
  • Until April 1, 2021, only one westbound lane is open.

E. 28th Avenue at El Camino Real

  • March 24 – April 7, single lane closures, watch for detour signs and flaggers on site.
  • **March 25, road closed in both directions, 8 p.m. to 6 a.m. only.**

On Feb. 11, 2021, the following traffic pattern changes were placed near the San Mateo Event Center in the Bay Meadows neighborhood:

Saratoga Drive

  • Eastbound lanes were closed to facilitate the construction of the City’s Clean Water Program Underground Flow Equalization System
  • Eastbound Saratoga from Delaware Street is closed to through traffic and only open to Event Center visitors for the vaccination effort. Through traffic should take a detour at 28th Avenue.
  • Westbound lanes now facilitate both eastbound and westbound traffic.
  • Westbound Saratoga from 28th Avenue has only one lane open to through traffic. Please expect congestion and use alternate routes when possible.

At Event Center Entrance on Saratoga Drive

  • Traffic light replaced with stop signs
  • Two left turn lanes into Event Center Entrance

Traffic patterns will continue to be updated as needed. We thank our neighbors in the area for their understanding and cooperation. Access to residences will be maintained, but detours may be needed to get to your home.

Event Center - Traffic Route - March 18


You can find more information on each of the projects currently active in this neighborhood by clicking on the links below. 

Traffic Congestion Announcement – Feb. 4, 2021

San Mateo County – COVID Vaccine information

San Mateo County Event Center – Vaccine Information

Neighborhood Construction Projects:

Clean Water Program’s UFES Construction Project

25th Grade Separation Construction

Wilson Meany – Bay Meadows development construction