Weekend Closure of EB I-80 Bayshore Freeway Between 17th & 4th streets 11 p.m. Friday April 17- 6 a.m. Monday April 20

Motorists Urged to Use Public Transportation

San Francisco County ― Caltrans has planned a full weekend closure of the Eastbound Interstate 80 (EB I-80) freeway between 17th & 4th streets starting Friday, April 17, 11:00 p.m. to Monday, April 20, 6:00 a.m. Throughout the weekend, motorists will not be able to drive along this stretch of freeway (approximately 1.6 miles) and are urged to use public transportation when possible. The southbound and northbound U.S. 101 Bayshore Freeway connector ramps will be closed. Throughout the weekend closure, motorists' last EB I-80 Bayshore Freeway exit will be Vermont St. Motorists who miss Vermont, will be directed to take 9th St. off ramp and redirected through Bryant St., to re-enter the freeway at the 5th St. on ramp.

April 17-20, Weekend Closure Highlights:

• The EB I-80 Bayshore Freeway between 17th and 4th streets.
• The SB U.S. 101 Bayshore Freeway to EB I-80 connector ramp.
• The NB U.S. 101 Bayshore Freeway to EB I-80 connector ramp.

Avoid the Area Throughout the Weekend
Motorists are strongly urged to stay away from this section of I-80 for the entire weekend. Significant congestion and travel delays are expected across SoMa, Mission Bay, and surrounding corridors. Consider using public transportation.

If driving is necessary, expect heavy delays and allow extra travel time.

Detours and Travel Alternatives
Detour maps and detour videos are available at sfhighwayprojects.com to help guide motorists safely proceed into San Francisco, or to reconnect to the freeway to enter the EB I-80 San Francisco-Oakland Bay Bridge. Clearly marked detour routes will guide drivers around the closure. Motorists may be directed onto local streets or alternate freeway connectors to rejoin I-80 eastbound.

These resources provide detailed visuals of the recommended detour routes.

This extended closure allows crews safe access to the freeway to perform essential structural and bridge deck rehabilitation that will enhance safety and extend its life. This work is part of an ongoing two-year project to rehabilitate the Central/Bayshore freeway viaducts which began in January.

Travelers Should Expect

• Construction activity day and night
• Noise and lighting in the work zone
• Local street congestion near 17th St., 9th/10th St., 5th St., and 4th St.
• Delays on freeway approaches into downtown San Francisco

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.

**Future closure locations and dates will be announced and posted on sfhighwayprojects.com.

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.