Accident Moderate Severity Resolved

CHP : Traffic Hazard on US-101 Southbound south of Marsh Rd (Menlo Park). Left lane affected. Expect delays.

A injury accident was reported on US-101 S near San Mateo on August 13, 2026 at 10:28 PM.

Road

US-101 S

Area

San Mateo

Address

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Started

Aug 13, 3:28 PM

Last Updated

2 months, 2 weeks ago

Aug 13, 3:30 PM

Resolved

Aug 13, 9:45 PM

Coordinates

37.4832, -122.1806

Update History

1 observations

CHP : Traffic Hazard on US-101 Southbound south of Marsh Rd (Menlo Park). Left lane affected. Expect delays. Aug 13, 3:30 PM

Source: 511_sfbay · ID 511.org/1535224 First seen Aug 13, 2026 3:30 PM