EB I-80 Bayshore Freeway 4th St. Off Ramp Closure Scheduled for April 10-13 Canceled

San Francisco County ― Caltrans has cancelled the planned weekend closure of the eastbound I-80 Bayshore Freeway 4th St. off ramp in San Francisco, scheduled for April 10-13. This work will be rescheduled for a future date next month. Crews were expected to place polyester concrete on the freeway. Because this material is highly sensitive to moisture and rain is forecast throughout the weekend, the closure was necessary.

This schedule adjustment is part of the ongoing Central and Bayshore Freeway Viaduct Project, a multi-phase effort to rehabilitate and extend the life of San Francisco freeway viaduct structures.

Why This Work Is Necessary
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 Benefits
Once 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.