Accident Low Severity Resolved

CHP : Traffic Collision on CA-4 Eastbound west of Lone Tree Way Bypass (Antioch). Center Divider affected. Expect delays.

A minor accident was reported on CA-4 E near Contra Costa on August 23, 2026 at 12:02 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Aug 23, 5:02 AM

Last Updated

1 day, 12 hours ago

Aug 23, 5:15 AM

Resolved

Aug 23, 11:15 AM

Coordinates

37.9648, -121.7406

Update History

1 observations

CHP : Traffic Collision on CA-4 Eastbound west of Lone Tree Way Bypass (Antioch). Center Divider affected. Expect delays. Aug 23, 5:15 AM

Source: 511_sfbay · ID 511.org/1539589 First seen Aug 23, 2026 5:15 AM