Accident Moderate Severity Resolved

CHP : Traffic Collision on US-101 Southbound north of E Poplar Ave (San Mateo). Left and center lanes blocked. Expect delays.

A injury accident was reported on US-101 S near San Mateo on August 8, 2026 at 2:23 AM.

Road

US-101 S

Area

San Mateo

Address

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Started

Aug 7, 7:23 PM

Last Updated

2 months, 2 weeks ago

Aug 7, 8:30 PM

Resolved

Aug 8, 2:45 AM

Coordinates

37.5863, -122.3320

Update History

2 observations

CHP : Traffic Collision on US-101 Southbound north of E Poplar Ave (San Mateo). Left and center lanes blocked. Expect delays. Aug 7, 8:15 PM

CHP : Traffic Collision on US-101 Southbound north of E Poplar Ave (San Mateo). Left and center lanes blocked. Expect delays. Aug 7, 7:45 PM

Source: 511_sfbay · ID 511.org/1532638 First seen Aug 7, 2026 7:45 PM