Accident Moderate Severity Resolved

CHP : Traffic Hazard on US-101 Southbound north of Marsh Rd (Menlo Park). Right lanes affected. Expect delays.

A injury accident was reported on US-101 S near San Mateo on October 15, 2026 at 12:38 PM.

Road

US-101 S

Area

San Mateo

Address

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Started

Oct 15, 5:38 AM

Last Updated

1 week, 5 days ago

Oct 15, 6:15 AM

Resolved

Oct 15, 12:30 PM

Coordinates

37.4844, -122.1843

Update History

2 observations

CHP : Traffic Hazard on US-101 Southbound north of Marsh Rd (Menlo Park). Right lanes affected. Expect delays. Oct 15, 6:15 AM

CHP : Traffic Hazard on US-101 Southbound north of Marsh Rd (Menlo Park). Right lanes affected. Expect delays. Oct 15, 5:45 AM

Source: 511_sfbay · ID 511.org/1564002 First seen Oct 15, 2026 5:45 AM