Accident Moderate Severity Stale

CHP : Traffic Collision with Injuries on US-101 Southbound at Ralston Ave (Belmont). Right shoulder affected. Expect delays.

A injury accident was reported on US-101 S near San Mateo on November 3, 2026 at 11:55 AM.

Road

US-101 S

Area

San Mateo

Address

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Started

Nov 3, 3:55 AM

Last Updated

3 hours, 2 minutes ago

Nov 3, 4:15 AM

Coordinates

37.5293, -122.2737

Update History

2 observations

CHP : Traffic Collision with Injuries on US-101 Southbound at Ralston Ave (Belmont). Right shoulder affected. Expect delays. Nov 3, 4:15 AM

CHP : Traffic Collision with Injuries on US-101 Southbound at Ralston Ave (Belmont). Right shoulder affected. Expect delays. Nov 3, 3:15 AM

Source: 511_sfbay · ID 511.org/1572226 First seen Nov 3, 2026 3:15 AM