Accident High Severity Resolved

CHP : Traffic Hazard on I-680 Southbound exiting at Geary Rd (Walnut Creek). Off Ramp affected. Expect delays.

A high-severity accident was reported on I-680 S near Contra Costa on September 11, 2026 at 2:21 PM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Sep 11, 7:21 AM

Last Updated

1 month, 2 weeks ago

Sep 11, 7:45 AM

Resolved

Sep 11, 1:45 PM

Coordinates

37.9265, -122.0608

Update History

2 observations

CHP : Traffic Hazard on I-680 Southbound exiting at Geary Rd (Walnut Creek). Off Ramp affected. Expect delays. Sep 11, 7:45 AM

CHP : Traffic Collision on I-680 Southbound at CA-242 S (Concord). Left lane blocked. Expect delays. Sep 11, 7:30 AM

Source: 511_sfbay · ID 511.org/1547906 First seen Sep 11, 2026 7:30 AM