Accident Moderate Severity Resolved

CHP : Residual delays on CA-4 Westbound east of Sycamore Ave (Hercules). Right shoulder affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on May 8, 2026 at 3:48 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

May 8, 8:48 AM

Last Updated

5 months, 2 weeks ago

May 8, 9:00 AM

Resolved

May 8, 3:00 PM

Coordinates

38.0144, -122.2523

Update History

1 observations

CHP : Residual delays on CA-4 Westbound east of Sycamore Ave (Hercules). Right shoulder affected. Expect delays. May 8, 9:00 AM

Source: 511_sfbay · ID 511.org/1491788 First seen May 8, 2026 9:00 AM