Accident High Severity Resolved

CHP : Traffic Collision with Injuries on CA-4 Eastbound exiting at Lone Tree Way Bypass (Antioch). Right lane blocked. Expect delays.

A high-severity accident was reported on CA-4 E near Contra Costa on July 13, 2026 at 1:05 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Jul 13, 6:05 AM

Last Updated

2 weeks, 4 days ago

Jul 13, 6:15 AM

Resolved

Jul 13, 12:30 PM

Coordinates

37.9648, -121.7406

Update History

1 observations

CHP : Traffic Collision with Injuries on CA-4 Eastbound exiting at Lone Tree Way Bypass (Antioch). Right lane blocked. Expect delays. Jul 13, 6:15 AM

Source: 511_sfbay · ID 511.org/1520259 First seen Jul 13, 2026 6:15 AM