Accident Moderate Severity Resolved

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

A injury accident was reported on US-101 S near San Mateo on August 19, 2026 at 2:39 PM.

Road

US-101 S

Area

San Mateo

Address

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Started

Aug 19, 7:39 AM

Last Updated

1 day, 4 hours ago

Aug 19, 7:45 AM

Resolved

Aug 19, 1:45 PM

Coordinates

37.4844, -122.1843

Update History

1 observations

CHP : Traffic Collision on US-101 Southbound north of Marsh Rd (Menlo Park). Lane blocked. Expect delays. Aug 19, 7:45 AM

Source: 511_sfbay · ID 511.org/1537722 First seen Aug 19, 2026 7:45 AM