Accident Moderate Severity Resolved

CHP : Residual delays on I-680 Northbound south of Stone Valley Rd (Alamo). Right shoulder affected. Expect delays.

A injury accident was reported on I-680 N near Contra Costa on August 22, 2026 at 12:43 AM.

Road

I-680 N

Area

Contra Costa

Address

Loading…

Started

Aug 21, 5:43 PM

Last Updated

2 months ago

Aug 21, 6:15 PM

Resolved

Aug 22, 12:30 AM

Coordinates

37.8432, -122.0219

Update History

2 observations

CHP : Residual delays on I-680 Northbound south of Stone Valley Rd (Alamo). Right shoulder affected. Expect delays. Aug 21, 6:15 PM

CHP : Traffic Collision with Injuries on I-680 Northbound south of Stone Valley Rd (Alamo). Left lanes blocked. Expect delays. Aug 21, 6:00 PM

Source: 511_sfbay · ID 511.org/1539045 First seen Aug 21, 2026 6:00 PM