Accident Moderate Stale

CHP : Traffic Collision on CA-4 Westbound east of Lone Tree Way Bypass (Antioch). Left lane affected. Expect delays.

Started
Apr 21, 5:06 AM
Last Seen
1 hour, 34 minutes ago
Coordinates
37.9663, -121.7391
1 observations
CHP : Traffic Collision on CA-4 Westbound east of Lone Tree Way Bypass (Antioch). Left lane affected. Expect delays. Apr 21, 5:15 AM
Source: 511_sfbay · ID 511.org/1484091 First seen Apr 21, 2026 5:15 AM