Accident Moderate Severity Resolved

CHP : Traffic Collision on US-101 Southbound north of Marsh Rd (Menlo Park). Left lanes blocked. Expect delays.

A injury accident was reported on US-101 S near San Mateo on September 2, 2026 at 5:11 PM.

Road

US-101 S

Area

San Mateo

Address

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Started

Sep 2, 10:11 AM

Last Updated

1 month, 3 weeks ago

Sep 2, 10:15 AM

Resolved

Sep 2, 4:30 PM

Coordinates

37.4844, -122.1843

Update History

1 observations

CHP : Traffic Collision on US-101 Southbound north of Marsh Rd (Menlo Park). Left lanes blocked. Expect delays. Sep 2, 10:15 AM

Source: 511_sfbay · ID 511.org/1544238 First seen Sep 2, 2026 10:15 AM