Accident Moderate Severity Stale

CHP : Residual delays on CA-4 Eastbound west of G St (Antioch). Right shoulder affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on August 10, 2026 at 1:32 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Aug 9, 6:32 PM

Last Updated

54 minutes ago

Aug 9, 6:45 PM

Coordinates

37.9981, -121.8111

Update History

2 observations

CHP : Residual delays on CA-4 Eastbound west of G St (Antioch). Right shoulder affected. Expect delays. Aug 9, 6:45 PM

CHP : Traffic Collision with Injuries on CA-4 Eastbound west of G St (Antioch). Right shoulder affected. Expect delays. Aug 9, 6:30 PM

Source: 511_sfbay · ID 511.org/1533235 First seen Aug 9, 2026 6:30 PM