Accident Moderate Severity Resolved

CHP : Traffic Collision with Injuries on CA-4 Eastbound east of Byron Hwy (Brentwood). Right shoulder affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on April 19, 2026 at 7:21 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Apr 19, 12:21 AM

Last Updated

6 months, 1 week ago

Apr 19, 12:45 AM

Resolved

Apr 19, 7:00 AM

Coordinates

37.8900, -121.6413

Update History

2 observations

CHP : Traffic Collision with Injuries on CA-4 Eastbound east of Byron Hwy (Brentwood). Right shoulder affected. Expect delays. Apr 19, 12:30 AM

CHP : Traffic Collision with Injuries on CA-4 Eastbound east of Byron Hwy (Brentwood). Right shoulder affected. Expect delays. Apr 19, 12:15 AM

Source: 511_sfbay · ID 511.org/1483255 First seen Apr 19, 2026 12:15 AM