Accident High Severity Resolved

CHP : Traffic Hazard on CA-4 Westbound ramp to I-80 W (Hercules). Connector ramp blocked. Expect delays.

A high-severity accident was reported on CA-4 W near Contra Costa on July 5, 2026 at 5:47 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jul 5, 10:47 AM

Last Updated

3 weeks, 4 days ago

Jul 5, 11:00 AM

Resolved

Jul 5, 5:15 PM

Coordinates

38.0151, -122.2692

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound ramp to I-80 W (Hercules). Connector ramp blocked. Expect delays. Jul 5, 11:00 AM

Source: 511_sfbay · ID 511.org/1516995 First seen Jul 5, 2026 11:00 AM