Accident High Severity Resolved

CHP : Traffic Collision with Injuries on CA-4 Westbound entering at Sand Creek Rd (Brentwood). On Ramp blocked. Expect delays.

A high-severity accident was reported on CA-4 W near Contra Costa on June 26, 2026 at 10:51 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jun 26, 3:51 PM

Last Updated

1 month ago

Jun 26, 4:15 PM

Resolved

Jun 26, 10:15 PM

Coordinates

37.9467, -121.7428

Update History

1 observations

CHP : Traffic Collision with Injuries on CA-4 Westbound entering at Sand Creek Rd (Brentwood). On Ramp blocked. Expect delays. Jun 26, 4:15 PM

Source: 511_sfbay · ID 511.org/1513709 First seen Jun 26, 2026 4:15 PM