CA · County

Contra Costa Car Accidents & Crashes

Contra Costa County has recorded 3,189 traffic crashes since 2024, with no fatalities on record. In the last 24 hours, 19 new crashes were reported. Crash volume is highest on CA-4 W and CA-4 E.

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. CCRS records include party details, injury severity, vehicle information, and precise geographic coordinates. Last updated July 29, 2026.

Breakdown by type: 2,335 accident, 854 construction.

3,189

Total Crashes

All time records

0

Fatalities

Fatal injury reports

5

Today

Reported since midnight

Today's Accidents Today's Fatalities

showing most recent 500 incidents with location data · click a marker to view details

Crash Records

Contra Costa Incidents

2335 accident 854 construction

Caltrans : Roadwork on CA-4 Westbound between Laurel Rd (Antioch) and CA-160 (Antioch). Right lane and shoulder closed until 5 AM. From 7:00 PM Wednesday, July 29, 2026 to 5:00 AM Thursday, July 30, 2026.

CA-4 W 19 minutes ago Live

Caltrans : Roadwork on I-580 Westbound between Bayview Ave (Richmond) and Garrard Blvd (Richmond). Various lanes closed until 6 AM. From 7:00 PM Wednesday, July 29, 2026 to 6:00 AM Thursday, July 30, 2026.

I-580 W 19 minutes ago Live

Caltrans : Roadwork on CA-4 Westbound between CA-160 (Antioch) and Hillcrest Ave (Antioch). Various lanes closed until 5 AM. From 7:00 PM Wednesday, July 29, 2026 to 5:00 AM Thursday, July 30, 2026.

CA-4 W 19 minutes ago Live

CHP : Traffic Hazard on I-680 Northbound south of Concord Ave (Pleasant Hill). Lanes affected. Expect delays.

Moderate Accident

I-680 N 3 hours, 4 minutes ago

CHP : Disabled truck on CA-4 Eastbound west of Railroad Ave (Pittsburg). Right lane blocked. Expect delays.

Moderate Accident

CA-4 E 5 hours, 4 minutes ago

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

CA-4 E 12 hours, 19 minutes ago

CHP : Traffic Hazard on I-680 Southbound north of CA-4 E (Martinez). Right lane blocked. Expect delays.

Moderate Accident

I-680 S 13 hours, 19 minutes ago

CHP : Traffic Hazard on CA-24 Eastbound east of Happy Valley Rd (Lafayette). 2nd lane from the left affected. Expect delays.

Moderate Accident

CA-24 E 13 hours, 34 minutes ago

CHP : Traffic Hazard on CA-4 Eastbound entering at Laurel Rd (Antioch). On Ramp affected. Expect delays.

CA-4 E 13 hours, 49 minutes ago

CHP : Traffic Collision on I-80 Westbound exiting at Carlson Blvd (Richmond). Lane affected. Expect delays.

Moderate Accident

I-80 W 14 hours, 19 minutes ago

CHP : Traffic Collision with Injuries on CA-4 Westbound exiting at Lone Tree Way Bypass (Antioch). Right lane blocked. Expect delays.

Moderate Accident

CA-4 W 14 hours, 49 minutes ago

CHP : Traffic Hazard on I-680 Southbound north of CA-24 W (Walnut Creek). Left lanes affected. Expect delays.

Moderate Accident

I-680 S 15 hours, 19 minutes ago

CHP : Traffic Collision with Injuries on I-80 Westbound east of Richmond Pky (Pinole). Right shoulder affected. Expect delays.

Moderate Accident

I-80 W 17 hours, 19 minutes ago

Caltrans : Roadwork on CA-4 Westbound entering at Lone Tree Way Bypass (Antioch). On Ramp closed until 5 AM. From 6:00 PM Tuesday, July 28, 2026 to 5:00 AM Wednesday, July 29, 2026.

CA-4 W 17 hours, 49 minutes ago

Caltrans : Roadwork on CA-4 Westbound between Laurel Rd (Antioch) and CA-160 (Antioch). Right lane and shoulder closed until 5 AM. From 7:00 PM Tuesday, July 28, 2026 to 5:00 AM Wednesday, July 29, 2026.

CA-4 W 18 hours, 49 minutes ago

Caltrans : Roadwork on CA-4 Westbound between Lone Tree Way Bypass (Antioch) and Laurel Rd (Antioch). Right lane and shoulder closed until 5 AM. From 7:00 PM Tuesday, July 28, 2026 to 5:00 AM Wednesday, July 29, 2026.

CA-4 W 18 hours, 49 minutes ago

Caltrans : Roadwork on I-580 Westbound between Bayview Ave (Richmond) and Garrard Blvd (Richmond). Various lanes closed until 6 AM. From 7:00 PM Tuesday, July 28, 2026 to 6:00 AM Wednesday, July 29, 2026.

I-580 W 18 hours, 49 minutes ago

Caltrans : Roadwork on I-680 Northbound at Bollinger Canyon Rd (San Ramon). Various lanes closed until 5 AM. From 8:00 PM Tuesday, July 28, 2026 to 5:00 AM Wednesday, July 29, 2026.

I-680 N 19 hours, 49 minutes ago

CHP : Traffic Collision on I-80 Eastbound east of Solano Ave (Richmond). Lane open. Expect delays.

I-80 E 19 hours, 49 minutes ago

Caltrans : Roadwork on I-680 Southbound between Crow Canyon Rd (San Ramon) and Bollinger Canyon Rd (San Ramon). Various lanes closed until 5 AM. From 8:00 PM Tuesday, July 28, 2026 to 5:00 AM Wednesday, July 29, 2026.

I-680 S 21 hours, 49 minutes ago

Caltrans : Roadwork on I-680 Southbound entering at Willow Pass Rd (Concord). On Ramp closed until 6 AM. From 11:00 PM Tuesday, July 28, 2026 to 6:00 AM Wednesday, July 29, 2026.

I-680 S 21 hours, 49 minutes ago

Caltrans : Roadwork on I-680 Southbound entering at Willow Pass Rd (Concord). On Ramp closed until 7 AM. From 10:00 PM Tuesday, July 28, 2026 to 7:00 AM Wednesday, July 29, 2026.

I-680 S 21 hours, 49 minutes ago

Caltrans : Roadwork on I-680 Southbound between Chilpancingo Pky (Pleasant Hill) and CA-242 S (Concord). Various lanes closed until 5 AM. From 8:00 PM Tuesday, July 28, 2026 to 5:00 AM Wednesday, July 29, 2026.

I-680 S 21 hours, 49 minutes ago

Caltrans : Roadwork on CA-4 Westbound exiting at Laurel Rd (Antioch). Off Ramp closed until 5 AM. From 6:00 PM Tuesday, July 28, 2026 to 5:00 AM Wednesday, July 29, 2026.

CA-4 W 23 hours, 49 minutes ago

Caltrans : Roadwork on CA-242 Southbound exiting at Concord Ave (Concord). Off Ramp closed until 11 PM. From 8:00 PM Tuesday, July 28, 2026 to 11:00 PM Tuesday, July 28, 2026.

CA-242 S 1 day ago

CHP : Traffic Hazard on I-580 Eastbound at Richmond San Rafael Bridge (Richmond). Lane affected. Expect delays.

I-580 E 1 day ago

CHP : Fire on I-80 Westbound at Central Ave (Richmond). Lane affected. Expect delays.

Moderate Accident

I-80 W 1 day ago

CHP : Traffic Hazard on CA-4 Westbound at CA-160 (Antioch). Lane affected. Expect delays.

Moderate Accident

CA-4 W 1 day ago

CHP : Traffic Collision on CA-4 Eastbound at Port Chicago Hwy (Concord). Right shoulder affected. Expect delays.

Moderate Accident

CA-4 E 1 day, 1 hour ago

CHP : Traffic Collision on I-80 Westbound east of San Pablo Dam Rd (San Pablo). Lane affected. Expect delays.

Moderate Accident

I-80 W 1 day, 3 hours ago

CHP : Traffic Hazard on I-680 Southbound north of Chilpancingo Pky (Pleasant Hill). Left and center lanes affected. Expect delays.

Moderate Accident

I-680 S 1 day, 4 hours ago

CHP : Residual delays on I-680 Southbound north of CA-4 E (Martinez). All lanes open. Expect delays.

I-680 S 1 day, 4 hours ago

CHP : Traffic Hazard on I-580 Westbound west of Richmond San Rafael Bridge - Toll Plaza (Richmond). Right lane affected. Expect delays.

I-580 W 1 day, 4 hours ago

CHP : Traffic Collision on CA-24 Eastbound east of Pleasant Hill Rd (Lafayette). Lane blocked. Expect delays.

CA-24 E 1 day, 5 hours ago

CHP : Fire on CA-4 Eastbound west of Port Chicago Hwy (Concord). Lane affected. Expect delays.

Moderate Accident

CA-4 E 1 day, 5 hours ago

CHP : Traffic Hazard on CA-24 Eastbound at Caldecott Tunnel Split (Orinda). Left lane blocked. Expect delays.

Moderate Accident

CA-24 E 1 day, 5 hours ago

CHP : Traffic Hazard on CA-4 Eastbound west of Railroad Ave (Pittsburg). Center lanes affected. Expect delays.

Moderate Accident

CA-4 E 1 day, 11 hours ago

CHP : Disabled vehicle on CA-24 Eastbound east of Happy Valley Rd (Lafayette). Lane affected. Expect delays.

Moderate Accident

CA-24 E 1 day, 12 hours ago

CHP : Traffic Hazard on I-680 Southbound north of Olympic Blvd (Walnut Creek). 3rd lane from the left affected. Expect delays.

Moderate Accident

I-680 S 1 day, 13 hours ago

CHP : Traffic Hazard on CA-24 Eastbound west of Fish Ranch Rd (Orinda). Left lanes affected. Expect delays.

Moderate Accident

CA-24 E 1 day, 13 hours ago

CHP : Traffic Hazard on CA-24 Westbound west of Acalanes Rd (Lafayette). Right lane affected. Expect delays.

Moderate Accident

CA-24 W 1 day, 13 hours ago

CHP : Disabled tractor trailer on CA-4 Eastbound entering at Port Chicago Hwy (Concord). On Ramp affected. Expect delays.

CA-4 E 1 day, 14 hours ago

CHP : Roadwork on CA-24 Eastbound between Acalanes Rd (Lafayette) and Happy Valley Rd (Lafayette). Right lane and shoulder closed until 7 AM. From 9:00 PM Monday, July 27, 2026 to 7:00 AM Tuesday, July 28, 2026.

CA-24 E 1 day, 15 hours ago

CHP : Traffic Collision on CA-4 Westbound at Willow Pass Rd (Concord). Lane affected. Expect delays.

Moderate Accident

CA-4 W 1 day, 16 hours ago

Caltrans : Roadwork on I-580 Westbound between Bayview Ave (Richmond) and Garrard Blvd (Richmond). Various lanes closed until 6 AM. From 7:00 PM Monday, July 27, 2026 to 6:00 AM Tuesday, July 28, 2026.

I-580 W 1 day, 16 hours ago

Caltrans : Roadwork on I-580 Eastbound entering at Marina Bay Pky (Richmond). On Ramp closed until 5 AM. From 9:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

I-580 E 1 day, 18 hours ago

Caltrans : Roadwork on I-680 Northbound exiting at Treat Blvd (Walnut Creek). Off Ramp closed until 5 AM. From 9:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

I-680 N 1 day, 18 hours ago

Caltrans : Roadwork on I-580 Eastbound exiting at Marina Bay Pky (Richmond). Off Ramp closed until 5 AM. From 9:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

I-580 E 1 day, 18 hours ago

Caltrans : Roadwork on CA-4 Westbound between Lone Tree Way Bypass (Antioch) and Laurel Rd (Antioch). Various lanes closed until 5 AM. From 7:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

CA-4 W 1 day, 22 hours ago

Caltrans : Roadwork on CA-4 Westbound entering at Lone Tree Way Bypass (Antioch). On Ramp closed until 5 AM. From 6:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

CA-4 W 1 day, 22 hours ago