Accident Moderate Severity Resolved

CHP : Traffic Collision on US-101 Northbound south of E Hillsdale Blvd (San Mateo). Right shoulder affected. Expect delays.

A injury accident was reported on US-101 N near San Mateo on August 23, 2026 at 11:51 AM.

Road

US-101 N

Area

San Mateo

Address

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Started

Aug 23, 4:51 AM

Last Updated

11 hours, 11 minutes ago

Aug 23, 5:15 AM

Resolved

Aug 23, 11:15 AM

Coordinates

37.5416, -122.2851

Update History

2 observations

CHP : Traffic Collision on US-101 Northbound south of E Hillsdale Blvd (San Mateo). Right shoulder affected. Expect delays. Aug 23, 5:00 AM

CHP : Traffic Collision on US-101 Northbound south of E Hillsdale Blvd (San Mateo). Right shoulder affected. Expect delays. Aug 23, 4:45 AM

Source: 511_sfbay · ID 511.org/1539588 First seen Aug 23, 2026 4:45 AM