Accident Moderate Severity Resolved

CHP : Traffic Collision with Injuries on CA-4 Eastbound ramp to CA-160 (Antioch). Lane affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on July 15, 2026 at 11:51 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Jul 15, 4:51 PM

Last Updated

3 months, 1 week ago

Jul 15, 6:00 PM

Resolved

Jul 16, 12:15 AM

Coordinates

37.9920, -121.7666

Update History

2 observations

CHP : Traffic Collision with Injuries on CA-4 Eastbound ramp to CA-160 (Antioch). Lane affected. Expect delays. Jul 15, 5:45 PM

CHP : Traffic Collision with Injuries on CA-4 Eastbound ramp to CA-160 (Antioch). Lane affected. Expect delays. Jul 15, 5:00 PM

Source: 511_sfbay · ID 511.org/1521584 First seen Jul 15, 2026 5:00 PM