Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Eastbound west of Somersville Rd (Antioch). Lane affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on June 15, 2026 at 1:06 AM.

Road

CA-4 E

Area

Contra Costa

Address

Loading…

Started

Jun 14, 6:06 PM

Last Updated

4 months, 1 week ago

Jun 14, 6:30 PM

Resolved

Jun 15, 12:30 AM

Coordinates

38.0037, -121.8374

Update History

1 observations

CHP : Traffic Hazard on CA-4 Eastbound west of Somersville Rd (Antioch). Lane affected. Expect delays. Jun 14, 6:15 PM

Source: 511_sfbay · ID 511.org/1508299 First seen Jun 14, 2026 6:15 PM