Accident High Severity Resolved

CHP : Traffic Collision on I-680 Northbound north of Willow Pass Rd (Concord). Off Ramp closed. Expect delays.

A high-severity accident was reported on I-680 N near Contra Costa on August 13, 2026 at 12:51 AM.

Road

I-680 N

Area

Contra Costa

Address

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Started

Aug 12, 5:51 PM

Last Updated

9 hours, 39 minutes ago

Aug 12, 6:45 PM

Resolved

Aug 13, 1:00 AM

Coordinates

37.9741, -122.0623

Update History

3 observations

CHP : Traffic Collision on I-680 Northbound north of Willow Pass Rd (Concord). Off Ramp closed. Expect delays. Aug 12, 6:45 PM

CHP : Traffic Collision on I-680 Northbound north of Willow Pass Rd (Concord). Off Ramp closed. Expect delays. Aug 12, 6:15 PM

CHP : Traffic Collision on I-680 Northbound north of Willow Pass Rd (Concord). Right lanes blocked. Expect delays. Aug 12, 6:00 PM

Source: 511_sfbay · ID 511.org/1534730 First seen Aug 12, 2026 6:00 PM