Accident Moderate Severity Resolved

CHP : Disabled tractor trailer on I-680 Northbound south of Treat Blvd (Walnut Creek). Right lane blocked. Expect delays.

A injury accident was reported on I-680 N near Contra Costa on September 4, 2026 at 2:42 PM.

Road

I-680 N

Area

Contra Costa

Address

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Started

Sep 4, 7:42 AM

Last Updated

1 month, 3 weeks ago

Sep 4, 9:00 AM

Resolved

Sep 4, 3:15 PM

Coordinates

37.9283, -122.0602

Update History

3 observations

CHP : Disabled tractor trailer on I-680 Northbound south of Treat Blvd (Walnut Creek). Right lane blocked. Expect delays. Sep 4, 8:45 AM

CHP : Disabled tractor trailer on I-680 Northbound south of Treat Blvd (Walnut Creek). Right lane blocked. Expect delays. Sep 4, 8:15 AM

CHP : Disabled tractor trailer on I-680 Northbound south of Treat Blvd (Walnut Creek). Right lane blocked. Expect delays. Sep 4, 8:00 AM

Source: 511_sfbay · ID 511.org/1545135 First seen Sep 4, 2026 8:00 AM