Bay Bridge Lane 1 Closure and I-80 Ramp Reopenings Impact Friday Commute

Commute Overview for Friday, January 23, 2026

Commuters in San Francisco should prepare for a mix of scheduled maintenance and residual overnight roadwork this Friday morning. While major arteries are largely clear of emergency incidents as of early morning, significant lane closures on the San Francisco-Oakland Bay Bridge and lingering ramp closures on I-80 will affect early transit times. Additionally, travelers heading to San Francisco International Airport (SFO) should monitor flight statuses due to predicted ground delay programs later this morning.

Roadwork and Highway Updates

Several key access points to the city’s freeway system are reopening this morning following overnight construction. However, specific daytime maintenance is scheduled for the Bay Bridge that will impact eastbound traffic. Drivers should be aware of the following specific conditions:

• Bay Bridge Eastbound Maintenance: Caltrans has scheduled a closure for Lane 1 on the eastbound I-80 approach to the Yerba Buena Island Tunnel. This closure is expected to remain in effect from 7:00 a.m. to 11:00 a.m. today, which may cause bunching for motorists heading toward Oakland during the tail end of the morning peak.
• I-80 Ramp Reopenings: The westbound 8th Street off-ramp, which was closed overnight, is scheduled to reopen at 5:00 a.m. The westbound 4th and Harrison streets on-ramp is slated to follow, reopening by 7:00 a.m. Drivers should watch for remaining crew activity and signage in these areas during the earliest hours of the commute.
• 19th Avenue (SR-1): Ongoing work for the "Fab 4" rehabilitation projects continues on 19th Avenue between Lincoln Way and Holloway Avenue. While no full daytime closures are scheduled today, motorists should expect narrow lanes and occasional parking restrictions as crews perform electrical and inspection work.

Public Transit and Rail Alerts

Public transportation users are seeing mostly stable service, though those traveling late tonight or using specific regional lines should note these adjustments:

• BART Yellow Line: Late-night riders traveling between Millbrae, SFO, and San Bruno should expect 30-minute delays starting at 9:00 p.m. due to ongoing train control modernization. Furthermore, single-tracking will occur on the Yellow Line between North Concord and Pittsburg/Bay Point stations after midnight.
• Caltrain: Service is running on a standard Friday schedule. Note that the temporary bus shuttles for the Tamien station electric transition will continue through next Friday, with full electric service resuming on January 31.
• Muni: No major system-wide disruptions are reported for the morning commute, though the SFMTA warns of potential minor residual delays on the 14 and 14R Mission lines due to early morning congestion near the Rice Street area.

Airport and Event Warnings

Travelers and those heading south of the city later today should keep an eye on the clock. The FAA indicates a potential ground stop or delay program at SFO after 7:45 a.m., which could ripple into local traffic around the airport. In the South Bay, the San Jose Sharks host the New York Rangers at the SAP Center at 7:00 p.m. San Francisco residents commuting to San Jose should expect heavy traffic on southbound US-101 and I-280 starting as early as 4:00 p.m.

Looking ahead, the Walk for Life West Coast rally will take place this Saturday, Jan. 24, starting at 1:30 p.m. This will cause significant detours on Market Street and Mission Street throughout the weekend afternoon.