Accident High Severity Resolved

CHP : Traffic Collision on US-101 Northbound south of E Millbrae Ave (Millbrae). Off Ramp affected. Expect delays.

A high-severity accident was reported on US-101 N near San Mateo on October 23, 2026 at 5:34 AM.

Road

US-101 N

Area

San Mateo

Address

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Started

Oct 22, 10:34 PM

Last Updated

4 days, 10 hours ago

Oct 23, 12:15 AM

Resolved

Oct 23, 6:30 AM

Coordinates

37.6060, -122.3855

Update History

3 observations

CHP : Traffic Collision on US-101 Northbound south of E Millbrae Ave (Millbrae). Off Ramp affected. Expect delays. Oct 23, 12:00 AM

CHP : Traffic Collision on US-101 Northbound south of E Millbrae Ave (Millbrae). Off Ramp affected. Expect delays. Oct 22, 10:15 PM

CHP : Traffic Collision on US-101 Northbound south of E Millbrae Ave (Millbrae). Off Ramp affected. Expect delays. Oct 22, 10:00 PM

Source: 511_sfbay · ID 511.org/1567430 First seen Oct 22, 2026 10:00 PM