Accident Moderate Severity Resolved

CHP : Traffic Collision on CA-4 Eastbound west of Sycamore Ave (Hercules). Lane affected. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on June 18, 2026 at 2:58 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Jun 17, 7:58 PM

Last Updated

4 months, 1 week ago

Jun 17, 8:00 PM

Resolved

Jun 18, 2:00 AM

Coordinates

38.0105, -122.2302

Update History

1 observations

CHP : Traffic Collision on CA-4 Eastbound west of Sycamore Ave (Hercules). Lane affected. Expect delays. Jun 17, 8:00 PM

Source: 511_sfbay · ID 511.org/1509679 First seen Jun 17, 2026 8:00 PM