Accident Moderate Severity Resolved

CHP : Residual delays on CA-4 Westbound east of A St (Antioch). Right shoulder affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on April 21, 2026 at 12:10 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Apr 21, 5:10 AM

Last Updated

6 months ago

Apr 21, 5:15 AM

Resolved

Apr 21, 11:30 AM

Coordinates

37.9984, -121.8016

Update History

1 observations

CHP : Residual delays on CA-4 Westbound east of A St (Antioch). Right shoulder affected. Expect delays. Apr 21, 5:15 AM

Source: 511_sfbay · ID 511.org/1484094 First seen Apr 21, 2026 5:15 AM