Accident Moderate Severity Stale

CHP : Traffic Hazard on US-101 Southbound at Marsh Rd (Menlo Park). 2nd lane from the left affected. Expect delays.

A injury accident was reported on US-101 S near San Mateo on April 23, 2026 at 2:26 PM.

Road

US-101 S

Area

San Mateo

Address

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Started

Apr 23, 7:26 AM

Last Updated

1 hour, 35 minutes ago

Apr 23, 7:30 AM

Coordinates

37.4844, -122.1843

Update History

1 observations

CHP : Traffic Hazard on US-101 Southbound at Marsh Rd (Menlo Park). 2nd lane from the left affected. Expect delays. Apr 23, 7:30 AM

Source: 511_sfbay · ID 511.org/1485049 First seen Apr 23, 2026 7:30 AM