Accident Moderate Severity Stale

CHP : Traffic Hazard on US-101 Southbound south of Grand Ave (South San Francisco). Left and center lanes affected. Expect delays.

A injury accident was reported on US-101 S near San Mateo on November 5, 2026 at 11:20 PM.

Road

US-101 S

Area

San Mateo

Address

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Started

Nov 5, 3:20 PM

Last Updated

2 hours, 35 minutes ago

Nov 5, 3:30 PM

Coordinates

37.6586, -122.4054

Update History

1 observations

CHP : Traffic Hazard on US-101 Southbound south of Grand Ave (South San Francisco). Left and center lanes affected. Expect delays. Nov 5, 3:30 PM

Source: 511_sfbay · ID 511.org/1573529 First seen Nov 5, 2026 3:30 PM