Accident High Severity Resolved

CHP : Disabled vehicle on CA-4 Westbound west of Balfour Rd (Antioch). Right lane blocked. Expect delays.

A high-severity accident was reported on CA-4 W near Contra Costa on September 23, 2026 at 12:46 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Sep 22, 5:46 PM

Last Updated

1 month ago

Sep 22, 6:15 PM

Resolved

Sep 23, 12:30 AM

Coordinates

37.9204, -121.7322

Update History

1 observations

CHP : Disabled vehicle on CA-4 Westbound west of Balfour Rd (Antioch). Right lane blocked. Expect delays. Sep 22, 6:15 PM

Source: 511_sfbay · ID 511.org/1553197 First seen Sep 22, 2026 6:15 PM