Accident Moderate Severity Resolved

CHP : Traffic Hazard on US-101 Southbound north of Sister Cities Blvd (South San Francisco). Left lane affected. Expect delays.

A injury accident was reported on US-101 S near San Mateo on May 15, 2026 at 11:56 PM.

Road

US-101 S

Area

San Mateo

Address

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Started

May 15, 4:56 PM

Last Updated

5 months, 1 week ago

May 15, 5:00 PM

Resolved

May 15, 11:15 PM

Coordinates

37.6674, -122.3951

Update History

1 observations

CHP : Traffic Hazard on US-101 Southbound north of Sister Cities Blvd (South San Francisco). Left lane affected. Expect delays. May 15, 5:00 PM

Source: 511_sfbay · ID 511.org/1495066 First seen May 15, 2026 5:00 PM