Bay Area road closures

Westbound I-80 Closes Through SoMa October 23 to 26 for Bayshore Viaduct Work

October 17, 2026 by Brian (Local SF Guide)

Elevated Central Freeway viaduct in SoMa, part of the Caltrans Central and Bayshore viaduct rehabilitation project behind the westbound I-80 closure - San Francisco

Caltrans will close all westbound I-80 lanes between 5th and 15th streets in San Francisco from October 23 to 26, 2026, for joint work on the Bayshore viaduct.

Highway 37 Closes Both Ways Between Vallejo and Sears Point October 23 to 26 for El Niño Work

October 16, 2026 by Brian (Local SF Guide)

Westbound State Route 37 approaching Sears Point, the stretch Caltrans is closing for El Nino flood work, north of San Francisco - San Francisco

Caltrans will close State Route 37 in both directions between Mare Island and Sears Point from 10 p.m. October 23 to 5 a.m. October 26, 2026, to raise flood-prone lanes before El Niño.