Accident Moderate Severity Resolved

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

A injury accident was reported on I-680 N near Contra Costa on October 16, 2026 at 8:43 PM.

Road

I-680 N

Area

Contra Costa

Address

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Started

Oct 16, 1:43 PM

Last Updated

1 week, 3 days ago

Oct 16, 2:15 PM

Resolved

Oct 16, 8:30 PM

Coordinates

37.8480, -122.0276

Update History

2 observations

CHP : Traffic Hazard on I-680 Northbound south of Stone Valley Rd (Alamo). Lanes affected. Expect delays. Oct 16, 2:15 PM

CHP : Traffic Hazard on I-680 Northbound south of Stone Valley Rd (Alamo). Lanes affected. Expect delays. Oct 16, 2:00 PM

Source: 511_sfbay · ID 511.org/1564690 First seen Oct 16, 2026 2:00 PM