Accident High Severity Resolved

CHP : Traffic Collision on CA-4 Eastbound entering at Laurel Rd (Antioch). On Ramp blocked. Expect delays.

A high-severity accident was reported on CA-4 E near Contra Costa on May 12, 2026 at 12:51 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

May 11, 5:51 PM

Last Updated

4 weeks, 1 day ago

May 11, 6:00 PM

Resolved

May 12, 12:00 AM

Coordinates

37.9760, -121.7424

Update History

1 observations

CHP : Traffic Collision on CA-4 Eastbound entering at Laurel Rd (Antioch). On Ramp blocked. Expect delays. May 11, 6:00 PM

Source: 511_sfbay · ID 511.org/1493121 First seen May 11, 2026 6:00 PM