Accident Moderate Severity Resolved

CHP : Traffic Collision on I-680 Southbound north of Olympic Blvd (Walnut Creek). Left lanes blocked. Expect delays.

A injury accident was reported on I-680 S near Contra Costa on July 21, 2026 at 7:44 PM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Jul 21, 12:44 PM

Last Updated

1 week, 1 day ago

Jul 21, 1:00 PM

Resolved

Jul 21, 7:15 PM

Coordinates

37.8984, -122.0712

Update History

1 observations

CHP : Traffic Collision on I-680 Southbound north of Olympic Blvd (Walnut Creek). Left lanes blocked. Expect delays. Jul 21, 1:00 PM

Source: 511_sfbay · ID 511.org/1524127 First seen Jul 21, 2026 1:00 PM