Accident Moderate Severity Resolved

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

A injury accident was reported on US-101 S near San Mateo on September 7, 2026 at 2:59 PM.

Road

US-101 S

Area

San Mateo

Address

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Started

Sep 7, 7:59 AM

Last Updated

1 month, 2 weeks ago

Sep 7, 8:00 AM

Resolved

Sep 7, 2:15 PM

Coordinates

37.6586, -122.4054

Update History

1 observations

CHP : Traffic Hazard on US-101 Southbound north of Grand Ave (South San Francisco). Left lane affected. Expect delays. Sep 7, 8:00 AM

Source: 511_sfbay · ID 511.org/1546032 First seen Sep 7, 2026 8:00 AM