Accident High Severity Resolved

CHP : Traffic Hazard on CA-4 Eastbound west of Sand Creek Rd (Brentwood). Lanes affected. Expect delays.

A high-severity accident was reported on CA-4 E near Contra Costa on July 15, 2026 at 3:05 PM.

Road

CA-4 E

Area

Contra Costa

Address

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Started

Jul 15, 8:05 AM

Last Updated

2 weeks, 1 day ago

Jul 15, 9:15 AM

Resolved

Jul 15, 3:15 PM

Coordinates

37.9477, -121.7439

Update History

2 observations

CHP : Traffic Hazard on CA-4 Eastbound west of Sand Creek Rd (Brentwood). Lanes affected. Expect delays. Jul 15, 9:00 AM

CHP : Traffic Hazard on CA-4 Eastbound west of Sand Creek Rd (Brentwood). Lanes affected. Expect delays. Jul 15, 8:15 AM

Source: 511_sfbay · ID 511.org/1521313 First seen Jul 15, 2026 8:15 AM