Accident Moderate Severity Resolved

CHP : Traffic Hazard on I-680 Northbound south of Monument Blvd (Pleasant Hill). Left lane affected. Expect delays.

A injury accident was reported on I-680 N near Contra Costa on May 20, 2026 at 3:20 PM.

Road

I-680 N

Area

Contra Costa

Address

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Started

May 20, 8:20 AM

Last Updated

1 day, 1 hour ago

May 20, 9:45 AM

Resolved

May 20, 3:45 PM

Coordinates

37.9454, -122.0580

Update History

1 observations

CHP : Traffic Hazard on I-680 Northbound south of Monument Blvd (Pleasant Hill). Left lane affected. Expect delays. May 20, 8:30 AM

Source: 511_sfbay · ID 511.org/1497114 First seen May 20, 2026 8:30 AM