Accident Moderate Severity Resolved

CHP : Traffic Hazard on I-680 Northbound south of Stone Valley Rd (Alamo). Left lanes affected. Expect delays.

A injury accident was reported on I-680 N near Contra Costa on September 15, 2026 at 2:12 AM.

Road

I-680 N

Area

Contra Costa

Address

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Started

Sep 14, 7:12 PM

Last Updated

1 month, 1 week ago

Sep 14, 7:30 PM

Resolved

Sep 15, 1:45 AM

Coordinates

37.8549, -122.0292

Update History

1 observations

CHP : Traffic Hazard on I-680 Northbound south of Stone Valley Rd (Alamo). Left lanes affected. Expect delays. Sep 14, 7:15 PM

Source: 511_sfbay · ID 511.org/1549365 First seen Sep 14, 2026 7:15 PM