Accident High Severity Resolved

CHP : Traffic Collision on I-680 Northbound south of N Main St (Walnut Creek). Off Ramp blocked. Expect delays.

A high-severity accident was reported on I-680 N near Contra Costa on May 4, 2026 at 11:32 AM.

Road

I-680 N

Area

Contra Costa

Address

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Started

May 4, 4:32 AM

Last Updated

1 month ago

May 4, 5:00 AM

Resolved

May 4, 11:15 AM

Coordinates

37.9143, -122.0663

Update History

1 observations

CHP : Traffic Collision on I-680 Northbound south of N Main St (Walnut Creek). Off Ramp blocked. Expect delays. May 4, 5:00 AM

Source: 511_sfbay · ID 511.org/1489749 First seen May 4, 2026 5:00 AM