Accident Resolved

CHP : Residual delays on CA-4 Westbound east of Hillcrest Ave (Antioch). All lanes open. Expect delays.

A accident was reported on CA-4 W near Contra Costa on August 23, 2026 at 1:45 AM.

Road

CA-4 W

Area

Contra Costa

Address

Loading…

Started

Aug 22, 6:45 PM

Last Updated

1 day, 2 hours ago

Aug 22, 7:45 PM

Resolved

Aug 23, 1:45 AM

Coordinates

37.9968, -121.7897

Update History

2 observations

CHP : Residual delays on CA-4 Westbound east of Hillcrest Ave (Antioch). All lanes open. Expect delays. Aug 22, 7:45 PM

CHP : Severe traffic alert and Traffic Collision with Injuries on CA-4 Westbound east of Hillcrest Ave (Antioch). Left lanes blocked. Expect delays. Aug 22, 7:00 PM

Source: 511_sfbay · ID 511.org/1539475 First seen Aug 22, 2026 7:00 PM

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