Accident High Severity Resolved

CHP : Traffic Collision on CA-242 Northbound entering at Concord Ave (Concord). On Ramp blocked. Expect delays.

A high-severity accident was reported on CA-242 N near Contra Costa on May 18, 2026 at 11:48 PM.

Road

CA-242 N

Area

Contra Costa

Address

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Started

May 18, 4:48 PM

Last Updated

3 days, 10 hours ago

May 18, 5:15 PM

Resolved

May 18, 11:30 PM

Coordinates

37.9788, -122.0420

Update History

1 observations

CHP : Traffic Collision on CA-242 Northbound entering at Concord Ave (Concord). On Ramp blocked. Expect delays. May 18, 5:00 PM

Source: 511_sfbay · ID 511.org/1496291 First seen May 18, 2026 5:00 PM