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EB I-80 Bayshore Freeway 4th St. Off-ramp Reopens

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Rehabilitation Work Completed Ahead of Schedule

San Francisco County ― The weekend closure of the 4th St. off-ramp at the Eastbound Interstate 80 (EB I-80) freeway, which began Friday, February 20, 11:00 p.m., has concluded ahead of schedule with the successful installation of a 3-foot-deep deck replacement and bridge joint. The off-ramp was reopened as of 9:35 p.m., Saturday, February 21.

The completion of the off-ramp work, this weekend is part of a broader two-year project to rehabilitate the Central/Bayshore freeway viaducts which began in January.

Caltrans working on demolition of the 4th Street off-ramp as part of the US-101 Central Freeway and I-80 Freeway Bayshore Viaduct rehabilitation project, February 21, 2026.

Cars traveling in traffic where the 4th Street off-ramp is closed where the US-101 Central Freeway and I-80 Freeway Bayshore Viaduct rehabilitation project is taking place, February 21, 2026.

Caltrans completes the weekend closure of the 4th St. off-ramp at the Eastbound Interstate 80 (EB I-80) freeway, which began Friday, February 20, 11:00 p.m., has concluded ahead of schedule with the successful installation of a 3-foot-deep deck replacement and bridge joint. The off-ramp was reopened as of 9:35 p.m., Saturday, February 21

Additional future project closure dates:

  • Mar 28–29: 12-hour full closure of EB-80 for joint reconstruction.
  • Apr 10–13: 55-hour closure of the EB-80 4th Street offramp for polyester concrete overlay.
  • Apr 17–20: 55-hour full closure of EB-80 for polyester concrete overlay.

About the Central and Bayshore freeway viaducts
The Central and Bayshore freeway viaducts are 71 years old and carry thousands of vehicles daily near the San Francisco–Oakland Bay Bridge corridor. With constant exposure to heavy traffic loads, weather, and seismic demands, the structures require timely rehabilitation to prevent further deterioration. Performing this work now allows Caltrans to address critical maintenance needs, preserve the existing infrastructure, and ensure continued safety for motorists, commuters, pedestrians, and cyclists traveling through and beneath the structures.

Driver and Community BenefitsOnce complete, the project will:

  • Preserve and extend the life of the viaduct structures
  • Improve ride quality and driving comfort
  • Enhance overall freeway safety
  • Provide safer conditions for pedestrians and cyclists traveling near and beneath the viaducts

Stay Informed
For the latest updates visit sfhighwayprojects.com where Caltrans will continue to provide updates as schedules are confirmed. Motorists should check back regularly for the latest construction information, traffic impacts, and detour details.

All work is weather dependent. Please drive with caution. Thank you for your patience as we work to maintain our state’s highways, bridges, and tunnels.

For real-time traffic, click on Caltrans QuickMap: https://quickmap.dot.ca.gov/

Caltrans appreciates the public’s patience and cooperation as we work to maintain and improve California’s transportation infrastructure.

For 24/7 traffic updates, please visit 511.org: https://x.com/511SFBay
For real-time information, visit Caltrans QuickMap: https://quickmap.dot.ca.gov
Follow us on X: https://x.com/CaltransD4
Or call 1-800-472-7623, 1-800-427-ROAD for state highway conditions statewide.