CA · Highway

CA-4 E Accidents & Crashes

CA-4 E has recorded 861 traffic crashes in California since 2024, with no fatalities on record. In the last 24 hours, 9 new crashes were reported. The highest crash volumes are concentrated near Contra Costa.

Data is sourced from the California Crash Records System (CCRS), maintained by the California Highway Patrol and updated daily, and the CA 511 live incident feed, refreshed every 15 minutes. Records include crash severity, injury data, vehicle information, and precise geographic coordinates. Last updated Oct. 27, 2026.

Breakdown by type: 25 accident, 11 construction.

36

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

5

Today

Reported since midnight

Today's Accidents Today's Fatalities

Crash locations on CA-4 E. Click a marker to view details.

Crash Records

CA-4 E Incidents 36 results

25 accident 11 construction

Caltrans : Roadwork on CA-4 Eastbound and Westbound between Balfour Rd (Brentwood) and Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 7:00 PM Monday, October 26, 2026 to 5:00 AM Tuesday, October 27, 2026.

Contra Costa 47 minutes ago

Caltrans : Roadwork on CA-4 Eastbound at Sand Creek Rd (Brentwood). All lanes closed until 5 AM. From 7:00 PM Monday, October 26, 2026 to 5:00 AM Tuesday, October 27, 2026.

Contra Costa 3 hours, 2 minutes ago

Caltrans : Roadwork on CA-4 Eastbound at Bixler Rd (Discovery Bay). All lanes closed until 5 AM. From 7:00 PM Monday, October 26, 2026 to 5:00 AM Tuesday, October 27, 2026.

Contra Costa 3 hours, 2 minutes ago

Caltrans : Roadwork on CA-4 Eastbound at Walnut Blvd (Brentwood). All lanes closed until 5 AM. From 7:00 PM Monday, October 26, 2026 to 5:00 AM Tuesday, October 27, 2026.

Contra Costa 3 hours, 2 minutes ago

Caltrans : Roadwork on CA-4 Eastbound at Discovery Bay Blvd (Discovery Bay). Lane closed. One way traffic control in effect. From 8:00 PM Monday, October 26, 2026 to 4:00 AM Tuesday, October 27, 2026.

Contra Costa 6 hours, 17 minutes ago

CHP : Disabled vehicle on CA-4 Eastbound entering at Willow Pass Rd (Pittsburg). Left lane blocked. Expect delays.

Moderate Accident

Contra Costa 13 hours, 47 minutes ago

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

Contra Costa 15 hours, 2 minutes ago

CHP : Disabled vehicle on CA-4 Eastbound west of Balfour Rd (Brentwood). Left shoulder affected. Expect delays.

Moderate Accident

Contra Costa 17 hours, 47 minutes ago

Caltrans : Roadwork on CA-4 Eastbound at Bailey Rd (Pittsburg). Lane closed until 2 PM. From 9:30 AM Monday, October 26, 2026 to 2:00 PM Monday, October 26, 2026.

Contra Costa 18 hours, 17 minutes ago

CHP : Disabled vehicle on CA-4 Eastbound at Railroad Ave (Pittsburg). Lane affected. Expect delays.

Moderate Accident

Contra Costa 1 day, 5 hours ago

CHP : Disabled vehicle on CA-4 Eastbound at I-80 E (Hercules). Lanes affected. Expect delays.

Contra Costa 1 day, 11 hours ago

CHP : Disabled vehicle on CA-4 Eastbound east of Discovery Bay Blvd (Discovery Bay). Lane affected. Expect delays.

Moderate Accident

Contra Costa 1 day, 11 hours ago

CHP : Disabled vehicle on CA-4 Eastbound at Hillcrest Ave (Antioch). Lane affected. Expect delays.

Moderate Accident

Contra Costa 1 day, 15 hours ago

CHP : Traffic Collision with Injuries on CA-4 Eastbound west of CA-160 (Antioch). Right lane blocked. Expect delays.

Moderate Accident

Contra Costa 1 day, 16 hours ago

Caltrans : Roadwork on CA-4 Eastbound east of San Joaquin County Line (Byron). All lanes closed until 10 AM. From 10:00 PM Friday, October 23, 2026 to 10:00 AM Sunday, October 25, 2026.

Contra Costa 1 day, 19 hours ago

CHP : Residual delays on CA-4 Eastbound east of Bailey Rd (Pittsburg). Center Divider affected. Expect delays.

Contra Costa 2 days, 10 hours ago

CHP : Traffic Collision on CA-4 Eastbound west of Bixler Rd (Discovery Bay). Right shoulder blocked. Expect delays.

Moderate Accident

Contra Costa 2 days, 13 hours ago

Caltrans : Roadwork on CA-4 Eastbound and Westbound east of Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 10:00 PM Friday, October 23, 2026 to 10:00 AM Sunday, October 25, 2026.

Contra Costa 2 days, 22 hours ago

CHP : Brush fire on CA-4 Eastbound west of Bailey Rd (Pittsburg). Lane affected. Expect delays.

Moderate Accident

Contra Costa 3 days, 12 hours ago

CHP : Traffic Hazard on CA-4 Eastbound west of Laurel Rd (Antioch). Left lane affected. Expect delays.

Moderate Accident

Contra Costa 3 days, 12 hours ago

CHP : Traffic Hazard on CA-4 Eastbound west of Willow Pass Rd (Pittsburg). Center lanes blocked. Expect delays.

Moderate Accident

Contra Costa 3 days, 17 hours ago

CHP : Traffic Hazard on CA-4 Eastbound west of Willow Pass Rd (Pittsburg). Center lanes blocked. Expect delays.

Moderate Accident

Contra Costa 3 days, 18 hours ago

CHP : Traffic Hazard on CA-4 Eastbound west of Morello Ave (Martinez). 2nd lane from the left blocked. Expect delays.

Moderate Accident

Contra Costa 3 days, 19 hours ago

CHP : Traffic Hazard on CA-4 Eastbound at I-680 N (Martinez). Lane blocked. Expect delays.

Moderate Accident

Contra Costa 3 days, 20 hours ago

CHP : Grass fire on CA-4 Eastbound exiting at Hillcrest Ave (Antioch). Right shoulder affected. Expect delays.

Moderate Accident

Contra Costa 3 days, 21 hours ago

Caltrans : Roadwork on CA-4 Eastbound at Discovery Bay Blvd (Discovery Bay). Lane closed. One way traffic control in effect. From 8:00 PM Thursday, October 22, 2026 to 4:00 AM Friday, October 23, 2026.

Contra Costa 4 days, 1 hour ago

CHP : Traffic Collision on CA-4 Eastbound west of Sycamore Ave (Hercules). Right shoulder affected. Expect delays.

Moderate Accident

Contra Costa 4 days, 7 hours ago

CHP : Fire on CA-4 Eastbound east of Bayberry Ave (Hercules). Right shoulder affected. Expect delays.

Moderate Accident

Contra Costa 4 days, 7 hours ago

CHP : Traffic Collision with Injuries on CA-4 Eastbound ramp to I-680 N (Martinez). Left lane blocked. Expect delays.

Moderate Accident

Contra Costa 4 days, 19 hours ago

Caltrans : Roadwork on CA-4 Eastbound at Discovery Bay Blvd (Discovery Bay). Lane closed. One way traffic control in effect. From 8:00 PM Wednesday, October 21, 2026 to 4:00 AM Thursday, October 22, 2026.

Contra Costa 5 days, 1 hour ago

CHP : Fire on CA-4 Eastbound at Alhambra Ave (Martinez). Lane affected. Expect delays.

Moderate Accident

Contra Costa 5 days, 12 hours ago

CHP : Fire on CA-4 Eastbound entering at Contra Loma Blvd (Antioch). On Ramp affected. Expect delays.

Contra Costa 5 days, 12 hours ago

CHP : Traffic Collision on CA-4 Eastbound entering at Contra Loma Blvd (Antioch). Lane affected. Expect delays.

Moderate Accident

Contra Costa 5 days, 12 hours ago

CHP : Traffic Collision on CA-4 Eastbound south of Somersville Rd (Antioch). Right shoulder blocked. Expect delays.

Moderate Accident

Contra Costa 5 days, 13 hours ago

Caltrans : Roadwork on CA-4 Eastbound at Discovery Bay Blvd (Discovery Bay). Lane closed. One way traffic control in effect. From 8:00 PM Tuesday, October 20, 2026 to 4:00 AM Wednesday, October 21, 2026.

Contra Costa 6 days, 1 hour ago

CHP : Traffic Collision on CA-4 Eastbound entering at Willow Pass Rd (Pittsburg). Lane affected. Expect delays.

Moderate Accident

Contra Costa 6 days, 12 hours ago