Accident High Severity Resolved

CHP : Disabled vehicle on US-101 Southbound at Marsh Rd (Menlo Park). Off Ramp affected. Expect delays.

A high-severity accident was reported on US-101 S near San Mateo on July 4, 2026 at 1:40 AM.

Road

US-101 S

Area

San Mateo

Address

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Started

Jul 3, 6:40 PM

Last Updated

3 weeks, 3 days ago

Jul 3, 6:45 PM

Resolved

Jul 4, 1:00 AM

Coordinates

37.4844, -122.1843

Update History

1 observations

CHP : Disabled vehicle on US-101 Southbound at Marsh Rd (Menlo Park). Off Ramp affected. Expect delays. Jul 3, 6:45 PM

Source: 511_sfbay · ID 511.org/1516590 First seen Jul 3, 2026 6:45 PM