Lane Closures On 19th Avenue Snarl San Francisco Traffic, Cause Lengthy Delays

CBS Bay Area

April 27, 2026

Drivers on San Francisco's west side faced heavy congestion this weekend as crews began a series of lane closures along busy 19th Avenue, also known as State Route 1.

Caltrans shut down two of the three northbound lanes to begin a repaving project, creating significant backups. Transportation officials said delays in the northbound direction stretched up to an hour as of Saturday afternoon, with a roughly two-mile stretch taking drivers far longer than usual to navigate.

Officials were urging motorists to avoid the area if possible and instead use alternate routes such as Sunset Boulevard, which runs parallel to 19th Avenue, as well as Junipero Serra Boulevard and Brotherhood Way.

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