Accident High Severity Active

CHP : Traffic Collision with Injuries on US-101 Southbound south of Woodside Rd (Redwood City). On Ramp affected. Expect delays.

A high-severity accident was reported on US-101 S near San Mateo on August 15, 2026 at 11:22 AM.

Road

US-101 S

Area

San Mateo

Address

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Started

Aug 15, 4:22 AM

Last Updated

1 minute ago

Aug 15, 5:45 AM

Coordinates

37.4875, -122.2061

Update History

2 observations

CHP : Traffic Collision with Injuries on US-101 Southbound south of Woodside Rd (Redwood City). On Ramp affected. Expect delays. Aug 15, 4:30 AM

CHP : Traffic Collision with Injuries on US-101 Southbound south of Woodside Rd (Redwood City). On Ramp affected. Expect delays. Aug 15, 4:15 AM

Source: 511_sfbay · ID 511.org/1536008 First seen Aug 15, 2026 4:15 AM