Accident Stale

CHP : Residual delays on CA-4 Eastbound and Westbound between Balfour Rd (Antioch) and Marsh Creek Rd (Brentwood). All lanes open. Expect delays.

A accident was reported on CA-4 W near Contra Costa on June 16, 2026 at 2:17 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

Jun 16, 7:17 AM

Last Updated

43 minutes ago

Jun 16, 8:00 AM

Coordinates

37.8960, -121.7129

Update History

2 observations

CHP : Residual delays on CA-4 Eastbound and Westbound between Balfour Rd (Antioch) and Marsh Creek Rd (Brentwood). All lanes open. Expect delays. Jun 16, 8:00 AM

CHP : Severe traffic alert and Traffic Collision on CA-4 Eastbound and Westbound between Balfour Rd (Antioch) and Marsh Creek Rd (Brentwood). All lanes closed. Avoid the area. Jun 16, 7:30 AM

Source: 511_sfbay · ID 511.org/1508882 First seen Jun 16, 2026 7:30 AM

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