CA · Highway

CA-4 E Accidents & Crashes

CA-4 E has recorded 70 traffic crashes in California since 2024, with no fatalities on record. In the last 24 hours, 1 new crash 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 April 22, 2026.

Breakdown by type: 52 accident, 16 construction.

68

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

1

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 68 results

52 accident 16 construction

CHP : Traffic Hazard on CA-4 Eastbound east of Center Ave (Martinez). 2nd lane from the left affected. Expect delays.

Moderate Accident

Contra Costa 7 hours, 17 minutes ago

CHP : Disabled vehicle on CA-4 Eastbound west of Alhambra Ave (Martinez). Right lane blocked. Expect delays.

Moderate Accident

Contra Costa 1 day, 4 hours ago

CHP : Residual delays on CA-4 Eastbound east of I-680 N (Martinez). Right shoulder affected. Expect delays.

Moderate Accident

Contra Costa 1 day, 17 hours ago

CHP : Traffic Collision with Injuries on CA-4 Eastbound east of CA-242 N (Concord). Lanes open. Expect delays.

Contra Costa 2 days ago

CHP : Traffic Hazard on CA-4 Eastbound at I-680 S (Martinez). Right lane blocked. Expect delays.

Moderate Accident

Contra Costa 2 days, 8 hours ago

CHP : Traffic Hazard on CA-4 Eastbound at CA-242 S (Concord). Off Ramp blocked. Expect delays.

Contra Costa 3 days, 9 hours ago

CHP : Residual delays on CA-4 Eastbound at Byron Hwy (Brentwood). All lanes open. Expect delays.

Contra Costa 3 days, 16 hours ago

Caltrans : Roadwork on CA-4 Eastbound at Sycamore Ave (Hercules). Right lane and shoulder closed until 9 AM. From 5:00 AM Sunday, April 19, 2026 to 9:00 AM Sunday, April 19, 2026.

Contra Costa 3 days, 17 hours ago

CHP : Traffic Collision on CA-4 Eastbound exiting at Willow Pass Rd (Pittsburg). Off Ramp blocked. Expect delays.

Contra Costa 3 days, 17 hours ago

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

Contra Costa 3 days, 20 hours ago

CHP : Traffic Hazard on CA-4 Eastbound west of Hillcrest Ave (Antioch). Left shoulder affected. Expect delays.

Moderate Accident

Contra Costa 3 days, 23 hours ago

CHP : Traffic Collision with Injuries on CA-4 Eastbound east of Byron Hwy (Brentwood). Right shoulder affected. Expect delays.

Moderate Accident

Contra Costa 4 days ago

CHP : Disabled vehicle on CA-4 Eastbound east of Byron Hwy (Brentwood). Right shoulder affected. Expect delays.

Moderate Accident

Contra Costa 4 days, 1 hour ago

CHP : Traffic Collision on CA-4 Eastbound west of I-680 N (Martinez). Right shoulder affected. Expect delays.

Moderate Accident

Contra Costa 4 days, 10 hours ago

CHP : Disabled vehicle on CA-4 Eastbound at Alhambra Ave (Martinez). Lane blocked. Expect delays.

Moderate Accident

Contra Costa 4 days, 10 hours ago

Caltrans : Roadwork on CA-4 Eastbound between San Pablo Ave (Hercules) and Cummings Skwy (Port Costa). All lanes closed. Avoid the area. From 7:00 PM Friday, April 17, 2026 to 10:00 AM Saturday, April 18, 2026.

Contra Costa 4 days, 18 hours ago

Caltrans : Roadwork on CA-4 Eastbound between Cummings Skwy (Port Costa) and Alhambra Ave (Martinez). Various lanes closed until 6 AM. From 7:00 PM Friday, April 17, 2026 to 6:00 AM Saturday, April 18, 2026.

Contra Costa 4 days, 19 hours ago

Caltrans : Roadwork on CA-4 Eastbound entering at Bayberry Ave (Hercules). On Ramp closed until 10 AM. From 7:00 PM Friday, April 17, 2026 to 10:00 AM Saturday, April 18, 2026.

Contra Costa 4 days, 22 hours ago

Caltrans : Roadwork on CA-4 Eastbound entering at Sycamore Ave (Hercules). On Ramp closed until 10 AM. From 7:00 PM Friday, April 17, 2026 to 10:00 AM Saturday, April 18, 2026.

Contra Costa 4 days, 22 hours ago

Caltrans : Roadwork on CA-4 Eastbound between San Pablo Ave (Hercules) and Cummings Skwy (Port Costa). All lanes closed until 10 AM. From 7:00 PM Friday, April 17, 2026 to 10:00 AM Saturday, April 18, 2026.

Contra Costa 5 days, 6 hours ago

CHP : Disabled vehicle on CA-4 Eastbound at Sycamore Ave (Hercules). Lane blocked. Expect delays.

Moderate Accident

Contra Costa 5 days, 6 hours ago

CHP : Traffic Hazard on CA-4 Eastbound west of Pacheco Blvd (Pacheco). 2nd lane from the left affected. Expect delays.

Moderate Accident

Contra Costa 5 days, 7 hours ago

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

Moderate Accident

Contra Costa 5 days, 8 hours ago

Caltrans : Roadwork on CA-4 Eastbound entering at Bayberry Ave (Hercules). On Ramp closed until 5 AM. From 7:00 PM Thursday, April 16, 2026 to 5:00 AM Friday, April 17, 2026.

Contra Costa 5 days, 20 hours ago

Caltrans : Roadwork on CA-4 Eastbound entering at Sycamore Ave (Hercules). On Ramp closed until 5 AM. From 7:00 PM Thursday, April 16, 2026 to 5:00 AM Friday, April 17, 2026.

Contra Costa 5 days, 20 hours ago

Caltrans : Roadwork on CA-4 Eastbound between San Pablo Ave (Hercules) and Cummings Skwy (Port Costa). All lanes closed. Avoid the area. From 7:00 PM Thursday, April 16, 2026 to 5:00 AM Friday, April 17, 2026.

Contra Costa 5 days, 20 hours ago

CHP : Traffic Collision on CA-4 Eastbound west of Willow Pass Rd (Pittsburg). Left lane blocked. Expect delays.

Moderate Accident

Contra Costa 6 days, 6 hours ago

CHP : Traffic Hazard on CA-4 Eastbound at Bailey Rd (Pittsburg). Lane affected. Expect delays.

Moderate Accident

Contra Costa 6 days, 7 hours ago

CHP : Traffic Hazard on CA-4 Eastbound west of Center Ave (Martinez). Center lane blocked. Expect delays.

Moderate Accident

Contra Costa 6 days, 8 hours ago

CHP : Residual delays on CA-4 Eastbound at Bixler Rd (Discovery Bay). Right shoulder affected. Expect delays.

Moderate Accident

Contra Costa 6 days, 16 hours ago

Caltrans : Roadwork on CA-4 Eastbound entering at Sycamore Ave (Hercules). On Ramp closed until 5 AM. From 7:00 PM Wednesday, April 15, 2026 to 5:00 AM Thursday, April 16, 2026.

Contra Costa 6 days, 20 hours ago

Caltrans : Roadwork on CA-4 Eastbound entering at Bayberry Ave (Hercules). On Ramp closed until 5 AM. From 7:00 PM Wednesday, April 15, 2026 to 5:00 AM Thursday, April 16, 2026.

Contra Costa 6 days, 20 hours ago

Caltrans : Roadwork on CA-4 Eastbound between San Pablo Ave (Hercules) and Cummings Skwy (Port Costa). All lanes closed. Avoid the area. From 7:00 PM Wednesday, April 15, 2026 to 5:00 AM Thursday, April 16, 2026.

Contra Costa 6 days, 20 hours ago

Caltrans : Roadwork on CA-4 Eastbound between San Pablo Ave (Hercules) and Cummings Skwy (Port Costa). All lanes closed until 5 AM. From 7:00 PM Wednesday, April 15, 2026 to 5:00 AM Thursday, April 16, 2026.

Contra Costa 1 week ago

CHP : Traffic Collision on CA-4 Eastbound west of G St (Antioch). Left lane blocked. Expect delays.

Moderate Accident

Contra Costa 1 week ago

Caltrans : Roadwork on CA-4 Eastbound entering at Sycamore Ave (Hercules). On Ramp closed until 5 AM. From 7:00 PM Tuesday, April 14, 2026 to 5:00 AM Wednesday, April 15, 2026.

Contra Costa 1 week ago

Caltrans : Roadwork on CA-4 Eastbound entering at Bayberry Ave (Hercules). On Ramp closed until 5 AM. From 7:00 PM Tuesday, April 14, 2026 to 5:00 AM Wednesday, April 15, 2026.

Contra Costa 1 week ago

Caltrans : Roadwork on CA-4 Eastbound between San Pablo Ave (Hercules) and Cummings Skwy (Port Costa). All lanes closed. Avoid the area. From 7:00 PM Tuesday, April 14, 2026 to 5:00 AM Wednesday, April 15, 2026.

Contra Costa 1 week ago

CHP : Pothole on CA-4 Eastbound west of CA-242 S (Concord). Lane affected. Expect delays.

Moderate Accident

Contra Costa 1 week, 2 days ago

CHP : Severe traffic alert and Traffic Collision on CA-4 Eastbound west of Cummings Skwy (Port Costa). Right lane blocked. Expect delays.

Contra Costa 1 week, 2 days ago

CHP : Residual delays on CA-4 Eastbound exiting at Arnold Industrial Pl (Concord). Off Ramp affected. Expect delays.

Contra Costa 1 week, 3 days ago

CHP : Traffic Collision with Injuries on CA-4 Eastbound east of I-680 N (Martinez). Right lanes blocked. Expect delays.

Contra Costa 1 week, 3 days ago

CHP : Traffic Hazard on CA-4 Eastbound east of Port Chicago Hwy (Concord). Lane affected. Expect delays.

Moderate Accident

Contra Costa 1 week, 3 days ago

CHP : Traffic Collision on CA-4 Eastbound east of CA-242 N (Concord). Lane blocked. Expect delays.

Moderate Accident

Contra Costa 1 week, 3 days ago

CHP : Traffic Collision on CA-4 Eastbound south of CA-242 N (Concord). Lane affected. Expect delays.

Moderate Accident

Contra Costa 1 week, 3 days ago

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

Moderate Accident

Contra Costa 1 week, 4 days ago

CHP : Traffic Hazard on CA-4 Eastbound west of Alhambra Ave (Martinez). Lane affected. Expect delays.

Moderate Accident

Contra Costa 1 week, 4 days ago

CHP : Disabled vehicle on CA-4 Eastbound west of Laurel Rd (Antioch). Lanes affected. Expect delays.

Contra Costa 1 week, 4 days ago

CHP : Traffic Hazard on CA-4 Eastbound east of Cummings Skwy (Port Costa). Lanes affected. Expect delays.

Contra Costa 1 week, 4 days ago

CHP : Traffic Hazard on CA-4 Eastbound south of Somersville Rd (Antioch). Lane blocked. Expect delays.

Moderate Accident

Contra Costa 1 week, 4 days ago