Accident Moderate Severity Resolved

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

A injury accident was reported on CA-4 W near Contra Costa on May 15, 2026 at 3:40 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

May 15, 8:40 AM

Last Updated

5 months, 1 week ago

May 15, 8:45 AM

Resolved

May 15, 2:45 PM

Coordinates

38.0174, -121.9904

Update History

1 observations

CHP : Traffic Hazard on CA-4 Westbound east of Willow Pass Rd (Concord). Lane affected. Expect delays. May 15, 8:45 AM

Source: 511_sfbay · ID 511.org/1494846 First seen May 15, 2026 8:45 AM