Accident Moderate Severity Stale

CHP : Traffic Hazard on CA-4 Westbound east of Willow Pass Rd (Concord). Right lane affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on July 27, 2026 at 4:07 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jul 27, 9:07 AM

Last Updated

5 hours, 19 minutes ago

Jul 27, 9:15 AM

Coordinates

38.0174, -121.9904

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound east of Willow Pass Rd (Concord). Right lane affected. Expect delays. Jul 27, 9:15 AM

Source: 511_sfbay · ID 511.org/1526801 First seen Jul 27, 2026 9:15 AM