Accident Moderate Severity Resolved

CHP : Disabled vehicle on CA-4 Westbound exiting at Lone Tree Way Bypass (Antioch). Left lane blocked. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on June 19, 2026 at 12:46 AM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jun 18, 5:46 PM

Last Updated

4 months, 1 week ago

Jun 18, 6:15 PM

Resolved

Jun 19, 12:30 AM

Coordinates

37.9553, -121.7444

Update History

1 observations

CHP : Disabled vehicle on CA-4 Westbound exiting at Lone Tree Way Bypass (Antioch). Left lane blocked. Expect delays. Jun 18, 6:00 PM

Source: 511_sfbay · ID 511.org/1510170 First seen Jun 18, 2026 6:00 PM