Accident High Severity Resolved

CHP : Traffic Hazard on I-680 Southbound exiting at Olympic Blvd (Walnut Creek). Off Ramp blocked. Expect delays.

A high-severity accident was reported on I-680 S near Contra Costa on June 11, 2026 at 11:38 PM.

Road

I-680 S

Area

Contra Costa

Address

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Started

Jun 11, 4:38 PM

Last Updated

1 month, 2 weeks ago

Jun 11, 4:45 PM

Resolved

Jun 11, 10:45 PM

Coordinates

37.8973, -122.0713

Update History

2 observations

CHP : Traffic Hazard on I-680 Southbound exiting at Olympic Blvd (Walnut Creek). Off Ramp blocked. Expect delays. Jun 11, 4:45 PM

CHP : Traffic Hazard on I-680 Southbound north of CA-24 E-I-680 S Ramp (Walnut Creek). Lane affected. Expect delays. Jun 11, 4:30 PM

Source: 511_sfbay · ID 511.org/1507074 First seen Jun 11, 2026 4:30 PM