Accident Moderate Severity Resolved

CHP : Traffic Collision on US-101 Southbound entering at E Poplar Ave (San Mateo). Right lane blocked. Expect delays.

A injury accident was reported on US-101 S near San Mateo on September 17, 2026 at 8:53 PM.

Road

US-101 S

Area

San Mateo

Address

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Started

Sep 17, 1:53 PM

Last Updated

1 month, 1 week ago

Sep 17, 2:00 PM

Resolved

Sep 17, 8:15 PM

Coordinates

37.5812, -122.3254

Update History

1 observations

CHP : Traffic Collision on US-101 Southbound entering at E Poplar Ave (San Mateo). Right lane blocked. Expect delays. Sep 17, 2:00 PM

Source: 511_sfbay · ID 511.org/1550900 First seen Sep 17, 2026 2:00 PM