Accident Moderate Severity Resolved

CHP : Disabled vehicle on CA-4 Westbound east of A St (Antioch). Lane blocked. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on August 16, 2026 at 2:18 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Aug 16, 7:18 AM

Last Updated

2 months, 1 week ago

Aug 16, 7:30 AM

Resolved

Aug 16, 1:30 PM

Coordinates

37.9984, -121.8016

Update History

1 observations

CHP : Disabled vehicle on CA-4 Westbound east of A St (Antioch). Lane blocked. Expect delays. Aug 16, 7:30 AM

Source: 511_sfbay · ID 511.org/1536303 First seen Aug 16, 2026 7:30 AM