Accident High Severity Resolved

CHP : Traffic Hazard on CA-4 Eastbound east of San Pablo Ave (Hercules). Right lane affected. Expect delays.

A high-severity accident was reported on CA-4 E near Contra Costa on October 27, 2026 at 3:09 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Oct 27, 8:09 AM

Last Updated

17 hours, 8 minutes ago

Oct 27, 8:45 AM

Resolved

Oct 27, 3:00 PM

Coordinates

38.0154, -122.2710

Update History

2 observations

CHP : Traffic Hazard on CA-4 Eastbound east of San Pablo Ave (Hercules). Right lane affected. Expect delays. Oct 27, 8:45 AM

CHP : Traffic Hazard on CA-4 Eastbound east of San Pablo Ave (Hercules). Right lane affected. Expect delays. Oct 27, 8:30 AM

Source: 511_sfbay · ID 511.org/1569178 First seen Oct 27, 2026 8:30 AM