Accident Moderate Severity Resolved

CHP : Traffic Hazard on I-680 Northbound at Stone Valley Rd (Alamo). Lane affected. Expect delays.

A injury accident was reported on I-680 N near Contra Costa on October 23, 2026 at 10:17 PM.

Road

I-680 N

Area

Contra Costa

Address

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Started

Oct 23, 3:17 PM

Last Updated

3 days, 21 hours ago

Oct 23, 3:45 PM

Resolved

Oct 23, 9:45 PM

Coordinates

37.8480, -122.0276

Update History

1 observations

CHP : Traffic Hazard on I-680 Northbound at Stone Valley Rd (Alamo). Lane affected. Expect delays. Oct 23, 3:30 PM

Source: 511_sfbay · ID 511.org/1567719 First seen Oct 23, 2026 3:30 PM