Accident High Severity Resolved

CHP : Traffic Collision on US-101 Southbound at E Millbrae Ave (Millbrae). On Ramp affected. Expect delays.

A high-severity accident was reported on US-101 S near San Mateo on October 25, 2026 at 12:21 PM.

Road

US-101 S

Area

San Mateo

Address

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Started

Oct 25, 5:21 AM

Last Updated

1 day, 22 hours ago

Oct 25, 6:45 AM

Resolved

Oct 25, 1:00 PM

Coordinates

37.6016, -122.3791

Update History

2 observations

CHP : Traffic Collision on US-101 Southbound at E Millbrae Ave (Millbrae). On Ramp affected. Expect delays. Oct 25, 5:30 AM

CHP : Traffic Collision on US-101 Southbound at E Millbrae Ave (Millbrae). On Ramp affected. Expect delays. Oct 25, 5:00 AM

Source: 511_sfbay · ID 511.org/1568326 First seen Oct 25, 2026 5:00 AM