Accident Moderate Severity Resolved

CHP : Traffic Hazard on US-101 Southbound north of E Hillsdale Blvd (San Mateo). Center lanes blocked. Expect delays.

A injury accident was reported on US-101 S near San Mateo on October 20, 2026 at 2:00 AM.

Road

US-101 S

Area

San Mateo

Address

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Started

Oct 19, 7:00 PM

Last Updated

2 weeks, 1 day ago

Oct 19, 7:15 PM

Resolved

Oct 20, 1:30 AM

Coordinates

37.5481, -122.2913

Update History

1 observations

CHP : Traffic Hazard on US-101 Southbound north of E Hillsdale Blvd (San Mateo). Center lanes blocked. Expect delays. Oct 19, 7:15 PM

Source: 511_sfbay · ID 511.org/1565987 First seen Oct 19, 2026 7:15 PM