Accident Moderate Severity Resolved

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

A injury accident was reported on US-101 S near San Mateo on October 5, 2026 at 2:07 PM.

Road

US-101 S

Area

San Mateo

Address

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Started

Oct 5, 7:07 AM

Last Updated

3 weeks, 1 day ago

Oct 5, 8:00 AM

Resolved

Oct 5, 2:15 PM

Coordinates

37.5812, -122.3254

Update History

2 observations

CHP : Traffic Hazard on US-101 Southbound north of E Poplar Ave (San Mateo). Center lanes blocked. Expect delays. Oct 5, 7:45 AM

CHP : Traffic Hazard on US-101 Southbound north of E Poplar Ave (San Mateo). Center lanes blocked. Expect delays. Oct 5, 7:15 AM

Source: 511_sfbay · ID 511.org/1559098 First seen Oct 5, 2026 7:15 AM