Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Eastbound at G St (Antioch). Right lane blocked. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on October 16, 2026 at 4:17 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Oct 16, 9:17 AM

Last Updated

1 week, 3 days ago

Oct 16, 9:30 AM

Resolved

Oct 16, 3:45 PM

Coordinates

37.9981, -121.8111

Update History

1 observations

CHP : Traffic Hazard on CA-4 Eastbound at G St (Antioch). Right lane blocked. Expect delays. Oct 16, 9:30 AM

Source: 511_sfbay · ID 511.org/1564578 First seen Oct 16, 2026 9:30 AM