Accident Moderate Severity Resolved

CHP : Traffic Hazard 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 June 20, 2026 at 6:15 PM.

Road

I-680 N

Area

Contra Costa

Address

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Started

Jun 20, 11:15 AM

Last Updated

4 months, 1 week ago

Jun 20, 11:30 AM

Resolved

Jun 20, 5:45 PM

Coordinates

37.8480, -122.0276

Update History

2 observations

CHP : Traffic Hazard on I-680 Northbound south of Stone Valley Rd (Alamo). Right shoulder affected. Expect delays. Jun 20, 11:30 AM

CHP : Traffic Hazard on I-680 Northbound south of Stone Valley Rd (Alamo). Lane affected. Expect delays. Jun 20, 11:15 AM

Source: 511_sfbay · ID 511.org/1510944 First seen Jun 20, 2026 11:15 AM