Accident Moderate Severity Resolved

CHP : Traffic Collision on CA-4 Westbound east of A St (Antioch). Lane affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on July 7, 2026 at 12:14 AM.

Road

CA-4 W

Area

Contra Costa

Address

Loading…

Started

Jul 6, 5:14 PM

Last Updated

3 months, 3 weeks ago

Jul 6, 5:15 PM

Resolved

Jul 6, 11:15 PM

Coordinates

37.9984, -121.8016

Update History

1 observations

CHP : Traffic Collision on CA-4 Westbound east of A St (Antioch). Lane affected. Expect delays. Jul 6, 5:15 PM

Source: 511_sfbay · ID 511.org/1517451 First seen Jul 6, 2026 5:15 PM