Accident Moderate Severity Resolved

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

A injury accident was reported on CA-4 E near Contra Costa on April 11, 2026 at 2:00 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Apr 11, 7:00 AM

Last Updated

6 months, 2 weeks ago

Apr 11, 7:30 AM

Resolved

Apr 11, 1:45 PM

Coordinates

38.0048, -121.8413

Update History

1 observations

CHP : Traffic Hazard on CA-4 Eastbound south of Somersville Rd (Antioch). Lane blocked. Expect delays. Apr 11, 7:15 AM

Source: 511_sfbay · ID 511.org/1479707 First seen Apr 11, 2026 7:15 AM