Accident Moderate Severity Resolved

CHP : Traffic Collision with Injuries on CA-4 Eastbound west of Somersville Rd (Antioch). Right lane blocked. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on June 27, 2026 at 1:48 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Jun 27, 6:48 AM

Last Updated

4 months ago

Jun 27, 7:15 AM

Resolved

Jun 27, 1:30 PM

Coordinates

38.0048, -121.8413

Update History

1 observations

CHP : Traffic Collision with Injuries on CA-4 Eastbound west of Somersville Rd (Antioch). Right lane blocked. Expect delays. Jun 27, 7:00 AM

Source: 511_sfbay · ID 511.org/1513974 First seen Jun 27, 2026 7:00 AM