Accident Moderate Severity Resolved

CHP : Traffic Hazard on I-680 Northbound at CA-4 E (Martinez). Lane affected. Expect delays.

A injury accident was reported on I-680 N near Contra Costa on October 4, 2026 at 6:02 PM.

Road

I-680 N

Area

Contra Costa

Address

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Started

Oct 4, 11:02 AM

Last Updated

3 weeks, 1 day ago

Oct 4, 11:15 AM

Resolved

Oct 4, 5:30 PM

Coordinates

37.9956, -122.0666

Update History

1 observations

CHP : Traffic Hazard on I-680 Northbound at CA-4 E (Martinez). Lane affected. Expect delays. Oct 4, 11:15 AM

Source: 511_sfbay · ID 511.org/1558842 First seen Oct 4, 2026 11:15 AM