Accident Moderate Severity Stale

CHP : Traffic Hazard on US-101 Southbound south of E Hillsdale Blvd (San Mateo). Lane affected. Expect delays.

A injury accident was reported on US-101 S near San Mateo on November 4, 2026 at 5:17 AM.

Road

US-101 S

Area

San Mateo

Address

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Started

Nov 3, 9:17 PM

Last Updated

1 hour, 4 minutes ago

Nov 3, 9:30 PM

Coordinates

37.5481, -122.2913

Update History

1 observations

CHP : Traffic Hazard on US-101 Southbound south of E Hillsdale Blvd (San Mateo). Lane affected. Expect delays. Nov 3, 9:30 PM

Source: 511_sfbay · ID 511.org/1572672 First seen Nov 3, 2026 9:30 PM