Accident Moderate Severity Stale

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

A injury accident was reported on US-101 S near San Mateo on August 15, 2026 at 6:17 PM.

Road

US-101 S

Area

San Mateo

Address

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Started

Aug 15, 11:17 AM

Last Updated

44 minutes ago

Aug 15, 11:30 AM

Coordinates

37.5812, -122.3254

Update History

1 observations

CHP : Traffic Collision on US-101 Southbound at E Poplar Ave (San Mateo). Right shoulder affected. Expect delays. Aug 15, 11:30 AM

Source: 511_sfbay · ID 511.org/1536072 First seen Aug 15, 2026 11:30 AM