Accident Moderate Severity Resolved

CHP : Disabled vehicle on CA-4 Westbound west of Hillcrest Ave (Antioch). 3rd lane from the left blocked. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on July 20, 2026 at 4:19 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jul 20, 9:19 AM

Last Updated

1 week, 4 days ago

Jul 20, 10:00 AM

Resolved

Jul 20, 4:15 PM

Coordinates

37.9956, -121.7804

Update History

2 observations

CHP : Disabled vehicle on CA-4 Westbound west of Hillcrest Ave (Antioch). 3rd lane from the left blocked. Expect delays. Jul 20, 10:00 AM

CHP : Disabled vehicle on CA-4 Westbound east of Hillcrest Ave (Antioch). Lane affected. Expect delays. Jul 20, 9:30 AM

Source: 511_sfbay · ID 511.org/1523499 First seen Jul 20, 2026 9:30 AM