Accident High Severity Resolved

CHP : Disabled vehicle on CA-4 Eastbound west of Lone Tree Way Bypass (Antioch). Right shoulder affected. Expect delays.

A high-severity accident was reported on CA-4 E near Contra Costa on August 2, 2026 at 11:35 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Aug 2, 4:35 AM

Last Updated

2 months, 3 weeks ago

Aug 2, 4:45 AM

Resolved

Aug 2, 11:00 AM

Coordinates

37.9554, -121.7444

Update History

2 observations

CHP : Disabled vehicle on CA-4 Eastbound west of Lone Tree Way Bypass (Antioch). Right shoulder affected. Expect delays. Aug 2, 4:45 AM

CHP : Disabled vehicle on CA-4 Eastbound west of Lone Tree Way Bypass (Antioch). Lane affected. Expect delays. Aug 2, 4:30 AM

Source: 511_sfbay · ID 511.org/1529805 First seen Aug 2, 2026 4:30 AM