Accident Stale

CHP : Residual delays on CA-4 Eastbound east of Sycamore Ave (Hercules). All lanes open. Expect delays.

A accident was reported on CA-4 E near Contra Costa on June 18, 2026 at 3:17 AM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Jun 17, 8:17 PM

Last Updated

59 minutes ago

Jun 17, 8:45 PM

Coordinates

38.0150, -122.2441

Update History

2 observations

CHP : Residual delays on CA-4 Eastbound east of Sycamore Ave (Hercules). All lanes open. Expect delays. Jun 17, 8:45 PM

CHP : Traffic Collision with Injuries on CA-4 Eastbound east of Sycamore Ave (Hercules). Right lane blocked. Expect delays. Jun 17, 8:30 PM

Source: 511_sfbay · ID 511.org/1509689 First seen Jun 17, 2026 8:30 PM