Bay Bridge Wind Advisory and 19th Avenue Paving to Delay Wednesday Commute

Morning Outlook: Rain and Wind Advisories

San Francisco commuters are facing a challenging Wednesday, February 18, as a combination of light rain, fog, and high wind advisories affect major travel corridors. The National Weather Service and Caltrans have issued a high wind advisory for the western span of the San Francisco-Oakland Bay Bridge (I-80). Officials recommend that drivers of high-profile vehicles, campers, and trailers avoid the bridge until conditions improve. Additionally, a dense fog advisory is in effect for parts of the outer Bay Area, which may slow early morning inbound traffic from the north and east.

Major Artery Alerts: Bay Bridge and 19th Avenue

Travelers using the Bay Bridge should be aware of planned maintenance impacting westbound lanes. Caltrans has scheduled daytime lane closures on westbound I-80 between Treasure Island and Rincon Hill for the Baylights Project. Lane 5 is expected to be closed starting at 8:00 a.m., followed by Lane 4 at 10:00 a.m., with both remaining closed until early tomorrow morning. Commuters should expect significant bottlenecking as traffic is funneled into the remaining lanes during the midday and evening rush.

On the west side of the city, the 19th Avenue (State Route 1) Rehabilitation Project continues its major paving operations. Construction crews will be active between Golden Gate Park and San Francisco State University from 7:00 a.m. to 3:00 p.m. While at least one lane will remain open in each direction, significant delays are expected, particularly near the intersections of Lincoln Way and Sloat Boulevard. Motorists are encouraged to use Sunset Boulevard as a primary alternative to avoid the construction zone.

The ongoing "Fab-4" rehabilitation work also remains active on the US-101 Hospital Curve and the I-80 Bayshore Viaduct. Drivers should anticipate intermittent lane reductions and ramp restrictions throughout the central freeway system as part of these essential structural repairs to the 71-year-old viaduct structures.

Public Transit: Muni Service and Event Impacts

The SFMTA recently implemented new service changes that riders should keep in mind today. Commuters on the 1X California Express should note that morning departure times from 33rd Avenue have been adjusted to 7:40 a.m. and 7:55 a.m. to improve route spacing. Additionally, the 30X Marina Express has returned to service for morning trips, though no afternoon or evening return service is currently available.

• Chase Center Impact: Heavy traffic is expected in the Mission Bay district this evening for the West Coast Conference basketball game between the USF Dons and the Gonzaga Bulldogs. Tip-off is at 8:00 p.m., with doors opening at 7:00 p.m.
• Transit Reroutes: There is no supplemental arena express service for this event. Riders on the T-Third, 15 Bayview Express, and 24 Divisadero should expect delays and crowded cars near the arena before and after the game.
• Howard Street Construction: The Transbay Howard Streetscape Project continues to impact traffic between The Embarcadero and 4th Street with intermittent lane closures between 7:00 a.m. and 4:00 p.m.

Commuter Strategy

Given the wet weather and the wind advisory on the Bay Bridge, public transit remains the most reliable option for reaching the Financial District or SOMA. For those driving, allowing an extra 20 to 30 minutes of travel time is strongly advised to account for lane closures on I-80 and the paving work on 19th Avenue. Monitor real-time transit apps for any sudden service interruptions on BART or Muni Metro throughout the day.