Accident
High Severity
Resolved
CHP : Traffic Hazard on CA-4 Eastbound at Lone Tree Way Bypass (Antioch). Lane affected. Expect delays.
A high-severity accident was reported on CA-4 E near Contra Costa on May 3, 2026 at 10:59 AM.
Last Updated
1 month, 1 week ago
May 3, 4:00 AM
Coordinates
37.9572, -121.7449
Update History
4 observations
CHP : Traffic Hazard on CA-4 Eastbound at Lone Tree Way Bypass (Antioch). Lane affected. Expect delays.
May 3, 4:00 AM
CHP : Traffic Hazard on CA-4 Eastbound at Lone Tree Way Bypass (Antioch). Lane affected. Expect delays.
May 3, 3:45 AM
CHP : Traffic Hazard on CA-4 Eastbound at Lone Tree Way Bypass (Antioch). Lane affected. Expect delays.
May 3, 3:30 AM
CHP : Traffic Hazard on CA-4 Eastbound at Lone Tree Way Bypass (Antioch). Lane affected. Expect delays.
May 3, 3:15 AM
Source: 511_sfbay · ID 511.org/1489486
First seen May 3, 2026 3:15 AM