Accident Moderate Severity Stale

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

A injury accident was reported on US-101 S near San Mateo on August 25, 2026 at 11:18 AM.

Road

US-101 S

Area

San Mateo

Address

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Started

Aug 25, 4:18 AM

Last Updated

1 hour, 31 minutes ago

Aug 25, 4:45 AM

Coordinates

37.5812, -122.3254

Update History

1 observations

CHP : Traffic Hazard on US-101 Southbound north of E Poplar Ave (San Mateo). Lane affected. Expect delays. Aug 25, 4:30 AM

Source: 511_sfbay · ID 511.org/1540385 First seen Aug 25, 2026 4:30 AM