Accident Moderate Severity Resolved

CHP : Traffic Collision on US-101 Southbound north of E Poplar Ave (San Mateo). Right shoulder affected. Expect delays.

A injury accident was reported on US-101 S near San Mateo on September 22, 2026 at 6:01 AM.

Road

US-101 S

Area

San Mateo

Address

Loading…

Started

Sep 21, 11:01 PM

Last Updated

1 month ago

Sep 21, 11:30 PM

Resolved

Sep 22, 5:45 AM

Coordinates

37.5812, -122.3254

Update History

1 observations

CHP : Traffic Collision on US-101 Southbound north of E Poplar Ave (San Mateo). Right shoulder affected. Expect delays. Sep 21, 11:15 PM

Source: 511_sfbay · ID 511.org/1552805 First seen Sep 21, 2026 11:15 PM