Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Eastbound at I-680 N (Martinez). Lane blocked. Expect delays.

A injury accident was reported on CA-4 E near Contra Costa on October 23, 2026 at 3:59 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Oct 23, 8:59 AM

Last Updated

4 days, 5 hours ago

Oct 23, 9:00 AM

Resolved

Oct 23, 3:15 PM

Coordinates

37.9946, -122.0694

Update History

1 observations

CHP : Traffic Hazard on CA-4 Eastbound at I-680 N (Martinez). Lane blocked. Expect delays. Oct 23, 9:00 AM

Source: 511_sfbay · ID 511.org/1567547 First seen Oct 23, 2026 9:00 AM