Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Westbound west of G St (Antioch). 2nd lane from the left affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on November 1, 2026 at 9:34 PM.

Road

CA-4 W

Area

Contra Costa

Address

Loading…

Started

Nov 1, 1:34 PM

Last Updated

13 hours, 15 minutes ago

Nov 1, 2:00 PM

Resolved

Nov 1, 8:15 PM

Coordinates

37.9984, -121.8117

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound west of G St (Antioch). 2nd lane from the left affected. Expect delays. Nov 1, 1:45 PM

Source: 511_sfbay · ID 511.org/1571566 First seen Nov 1, 2026 1:45 PM