Accident High Severity Resolved

CHP : Traffic Collision on CA-4 Eastbound west of G St (Antioch). Off Ramp affected. Expect delays.

A high-severity accident was reported on CA-4 E near Contra Costa on April 11, 2026 at 1:46 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Apr 11, 6:46 AM

Last Updated

1 month, 4 weeks ago

Apr 11, 7:00 AM

Resolved

Apr 11, 1:15 PM

Coordinates

37.9981, -121.8111

Update History

1 observations

CHP : Traffic Collision on CA-4 Eastbound west of G St (Antioch). Off Ramp affected. Expect delays. Apr 11, 7:00 AM

Source: 511_sfbay · ID 511.org/1479700 First seen Apr 11, 2026 7:00 AM