Accident Moderate Severity Resolved

CHP : Traffic Collision on US-101 Northbound south of Marsh Rd (Menlo Park). Right and center lanes blocked. Expect delays.

A injury accident was reported on US-101 N near San Mateo on June 21, 2026 at 3:52 PM.

Road

US-101 N

Area

San Mateo

Address

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Started

Jun 21, 8:52 AM

Last Updated

4 months, 1 week ago

Jun 21, 9:00 AM

Resolved

Jun 21, 3:00 PM

Coordinates

37.4818, -122.1771

Update History

2 observations

CHP : Traffic Collision on US-101 Northbound south of Marsh Rd (Menlo Park). Right and center lanes blocked. Expect delays. Jun 21, 9:00 AM

CHP : Traffic Collision on US-101 Northbound south of Marsh Rd (Menlo Park). Lane affected. Expect delays. Jun 21, 8:45 AM

Source: 511_sfbay · ID 511.org/1511193 First seen Jun 21, 2026 8:45 AM