Accident Stale

CHP : Severe traffic alert and Emergency roadwork on CA-4 Eastbound west of Lone Tree Way Bypass (Antioch). Right lane closed. Expect delays.

A accident was reported on CA-4 E near Contra Costa on April 28, 2026 at 12:07 AM.

Road

CA-4 E

Area

Contra Costa

Address

Loading…

Started

Apr 27, 5:07 PM

Last Updated

5 hours, 36 minutes ago

Apr 27, 9:45 PM

Coordinates

37.9729, -121.7402

Update History

8 observations

CHP : Severe traffic alert and Emergency roadwork on CA-4 Eastbound west of Lone Tree Way Bypass (Antioch). Right lane closed. Expect delays. Apr 27, 9:15 PM

CHP : Severe traffic alert and Emergency roadwork on CA-4 Eastbound west of Lone Tree Way Bypass (Antioch). Right lane closed. Expect delays. Apr 27, 9:00 PM

CHP : Severe traffic alert and Emergency roadwork on CA-4 Eastbound west of Lone Tree Way Bypass (Antioch). Right lane closed. Expect delays. Apr 27, 8:15 PM

CHP : Severe traffic alert and Emergency roadwork on CA-4 Eastbound west of Lone Tree Way Bypass (Antioch). Right lane closed. Expect delays. Apr 27, 7:45 PM

CHP : Severe traffic alert and Emergency roadwork on CA-4 Eastbound west of Lone Tree Way Bypass (Antioch). Right lane closed. Expect delays. Apr 27, 7:00 PM

CHP : Severe traffic alert and Emergency roadwork on CA-4 Eastbound west of Lone Tree Way Bypass (Antioch). Right lane closed. Expect delays. Apr 27, 6:00 PM

CHP : Severe traffic alert and Emergency roadwork on CA-4 Eastbound west of Lone Tree Way Bypass (Antioch). Right lane closed. Expect delays. Apr 27, 5:30 PM

CHP : Severe traffic alert and Emergency roadwork on CA-4 Eastbound west of Lone Tree Way Bypass (Antioch). Right lane closed. Expect delays. Apr 27, 5:15 PM

Source: 511_sfbay · ID 511.org/1486822 First seen Apr 27, 2026 5:15 PM