Accident Moderate Severity Resolved

CHP : Traffic Collision with Injuries on CA-4 Eastbound east of Somersville Rd (Antioch). Lane affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on April 10, 2026 at 11:40 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Apr 10, 4:40 AM

Last Updated

2 weeks ago

Apr 10, 5:00 AM

Resolved

Apr 10, 11:15 AM

Coordinates

38.0024, -121.8327

Update History

1 observations

CHP : Traffic Collision with Injuries on CA-4 Eastbound east of Somersville Rd (Antioch). Lane affected. Expect delays. Apr 10, 5:00 AM

Source: 511_sfbay · ID 511.org/1479263 First seen Apr 10, 2026 5:00 AM