Accident Moderate Severity Resolved

CHP : Traffic Hazard on I-680 Southbound north of Monument Blvd (Pleasant Hill). Left lane blocked. Expect delays.

A injury accident was reported on I-680 S near Contra Costa on September 29, 2026 at 7:43 PM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Sep 29, 12:43 PM

Last Updated

4 weeks ago

Sep 29, 1:00 PM

Resolved

Sep 29, 7:00 PM

Coordinates

37.9455, -122.0582

Update History

1 observations

CHP : Traffic Hazard on I-680 Southbound north of Monument Blvd (Pleasant Hill). Left lane blocked. Expect delays. Sep 29, 1:00 PM

Source: 511_sfbay · ID 511.org/1556485 First seen Sep 29, 2026 1:00 PM