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Contra Costa Car Accidents & Crashes

Contra Costa County has recorded 5,775 traffic crashes since 2024, with no fatalities on record. In the last 24 hours, 36 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 Nov. 3, 2026.

Breakdown by type: 149 accident, 94 construction.

243

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

5

Today

Reported since midnight

Today's Accidents Today's Fatalities

showing most recent 243 incidents with location data · click a marker to view details

Crash Records

Contra Costa Incidents 243 results

149 accident 94 construction

CHP : Traffic Hazard on I-80 Eastbound west of Willow Ave (Hercules). Left lane blocked. Expect delays.

Moderate Accident

I-80 E 1 hour, 26 minutes ago

CHP : Traffic Collision on I-680 Northbound north of El Cerro Blvd (Danville). 2nd lane from the left blocked. Expect delays.

Moderate Accident

I-680 N 1 hour, 26 minutes ago

CHP : Fire on I-580 Westbound east of S 23RD St (Richmond). Right shoulder affected. Expect delays.

Moderate Accident

I-580 W 1 hour, 56 minutes ago

CHP : Disabled vehicle on CA-4 Eastbound west of Port Chicago Hwy (Concord). 3rd lane from the left blocked. Expect delays.

Moderate Accident

CA-4 E 2 hours, 26 minutes ago

CHP : Traffic Hazard on I-680 Northbound north of Benicia Bridge - Toll Plaza (Martinez). Right lane blocked. Expect delays.

I-680 N 3 hours, 26 minutes ago

CHP : Traffic Collision on CA-4 Eastbound at CA-242 S (Concord). Lane affected. Expect delays.

Moderate Accident

CA-4 E 3 hours, 56 minutes ago

CHP : Traffic Collision with Injuries on CA-24 E-I-680 S Ramp Eastbound ramp to I-680 S (Walnut Creek). Left lane blocked. Expect delays.

Moderate Accident

CA-24 E-I-680 S Ramp 5 hours, 11 minutes ago

CHP : Traffic Hazard on I-680 Southbound north of CA-4 W (Martinez). 2nd lane from the left affected. Expect delays.

Moderate Accident

I-680 S 5 hours, 26 minutes ago

Caltrans : Roadwork on I-680 Southbound exiting at CA-242 S (Concord). Off Ramp closed until 2 PM. From 9:00 AM Tuesday, November 03, 2026 to 2:00 PM Tuesday, November 03, 2026.

I-680 S 5 hours, 41 minutes ago

CHP : Traffic Hazard on I-80 Westbound exiting at Solano Ave (Richmond). Off Ramp affected. Expect delays.

I-80 W 5 hours, 41 minutes ago

Caltrans : Roadwork on CA-4 Westbound between Pacheco Blvd (Pacheco) and Morello Ave (Martinez). Lane closed until 2-30 PM. From 9:00 AM Tuesday, November 03, 2026 to 2:30 PM Tuesday, November 03, 2026.

CA-4 W 6 hours, 11 minutes ago

CHP : Traffic Collision on CA-4 Westbound exiting at Somersville Rd (Antioch). Off Ramp affected. Expect delays.

CA-4 W 7 hours, 41 minutes ago

CHP : Fire on I-680 Southbound north of Chilpancingo Pky (Pleasant Hill). Right shoulder affected. Expect delays.

Moderate Accident

I-680 S 8 hours, 11 minutes ago

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

Moderate Accident

CA-4 E 9 hours, 11 minutes ago

CHP : Traffic Collision on CA-4 Westbound entering at Balfour Rd (Antioch). On Ramp affected. Expect delays.

CA-4 W 10 hours, 11 minutes ago

CHP : Traffic Hazard on I-680 Northbound south of Crow Canyon Rd (San Ramon). Right and center lanes affected. Expect delays.

Moderate Accident

I-680 N 11 hours, 11 minutes ago

CHP : Traffic Collision on I-80 Eastbound west of Fitzgerald Dr (Pinole). Left lanes blocked. Expect delays.

Moderate Accident

I-80 E 12 hours, 41 minutes ago

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, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

CA-4 E 14 hours, 41 minutes ago

Caltrans : Roadwork on CA-4 Eastbound and Westbound between Byron Hwy (Brentwood) and Balfour Rd (Antioch). All lanes closed. Avoid the area. From 7:00 PM Monday, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

CA-4 W 14 hours, 41 minutes ago

Caltrans : Roadwork on I-80 Eastbound between Barrett Ave (Richmond) and Fitzgerald Dr (Pinole). Various lanes closed until 5 AM. From 10:00 PM Monday, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

I-80 E 16 hours, 11 minutes ago

Caltrans : Roadwork on I-80 Eastbound between Macdonald Ave (Richmond) and Barrett Ave (Richmond). Various lanes closed until 5 AM. From 10:00 PM Monday, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

I-80 E 16 hours, 11 minutes ago

Caltrans : Roadwork on I-80 Eastbound entering at Cutting Blvd (El Cerrito). On Ramp closed until 5 AM. From 9:00 PM Monday, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

I-80 E 16 hours, 11 minutes ago

Caltrans : Roadwork on I-80 Eastbound entering at Cutting Blvd (El Cerrito). On Ramp closed until 5 AM. From 10:00 PM Monday, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

I-80 E 16 hours, 11 minutes ago

Caltrans : Roadwork on I-80 Eastbound between Fitzgerald Dr (Pinole) and Appian Way (Pinole). Various lanes closed until 5 AM. From 10:00 PM Monday, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

I-80 E 16 hours, 11 minutes ago

Caltrans : Roadwork on I-80 Westbound between Richmond Pky (Pinole) and Hilltop Dr (San Pablo). Various lanes closed until 4 AM. From 9:00 PM Monday, November 02, 2026 to 4:00 AM Tuesday, November 03, 2026.

I-80 W 16 hours, 11 minutes ago

CHP : Fire on I-580 Westbound at Erlandson St (Richmond). Lane affected. Expect delays.

Moderate Accident

I-580 W 18 hours, 41 minutes ago

Caltrans : Bridge work on I-580 Westbound between Harbour Way S (Richmond) and Garrard Blvd (Richmond). Various lanes closed until 6 AM. From 10:00 PM Monday, November 02, 2026 to 6:00 AM Tuesday, November 03, 2026.

I-580 W 20 hours, 41 minutes ago

Caltrans : Roadwork on I-680 Southbound entering at Diablo Rd (Danville). On Ramp closed until 5 AM. From 9:00 PM Monday, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

I-680 S 21 hours, 26 minutes ago

Caltrans : Roadwork on I-680 Southbound exiting at Alcosta Blvd (San Ramon). Off Ramp closed until 5 AM. From 9:00 PM Monday, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

I-680 S 21 hours, 26 minutes ago

Caltrans : Roadwork on I-680 Southbound entering at Bollinger Canyon Rd (San Ramon). On Ramp closed until 4 AM. From 9:00 PM Monday, November 02, 2026 to 4:00 AM Tuesday, November 03, 2026.

I-680 S 21 hours, 26 minutes ago

Caltrans : Roadwork on I-680 Southbound exiting at Sycamore Valley Rd (Danville). Off Ramp closed until 5 AM. From 9:00 PM Monday, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

I-680 S 21 hours, 26 minutes ago

Caltrans : Roadwork on CA-4 Eastbound at Bixler Rd (Discovery Bay). All lanes closed until 5 AM. From 7:00 PM Monday, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

CA-4 E 22 hours, 26 minutes ago

CHP : Disabled vehicle on I-580 Eastbound west of Richmond San Rafael Bridge (Richmond). Right lane blocked. Expect delays.

I-580 E 22 hours, 26 minutes ago

Caltrans : Roadwork on CA-4 Eastbound at Walnut Blvd (Brentwood). All lanes closed until 5 AM. From 7:00 PM Monday, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

CA-4 E 22 hours, 26 minutes ago

Caltrans : Roadwork on CA-4 Eastbound at Sand Creek Rd (Brentwood). All lanes closed until 5 AM. From 7:00 PM Monday, November 02, 2026 to 5:00 AM Tuesday, November 03, 2026.

CA-4 E 22 hours, 26 minutes ago

CHP : Traffic Collision on CA-4 Westbound west of Hillcrest Ave (Antioch). Lane affected. Expect delays.

Moderate Accident

CA-4 W 23 hours, 26 minutes ago

CHP : Traffic Collision on I-580 Westbound east of Western Dr (Richmond). Left lane blocked. Expect delays.

I-580 W 1 day ago

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

Moderate Accident

CA-4 E 1 day ago

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

Moderate Accident

CA-4 E 1 day ago

CHP : Traffic Hazard on I-580 Eastbound west of Harbour Way S (Richmond). Lane blocked. Expect delays.

Moderate Accident

I-580 E 1 day, 1 hour ago

CHP : Traffic Collision on CA-4 Eastbound west of Arnold Industrial Pl (Concord). Lane affected. Expect delays.

Moderate Accident

CA-4 E 1 day, 1 hour ago

CHP : Traffic Collision with Injuries on I-680 Northbound south of S Main St (Walnut Creek). Right lane blocked. Expect delays.

Moderate Accident

I-680 N 1 day, 2 hours ago

CHP : Traffic Hazard on I-80 Westbound east of El Portal Dr (San Pablo). Center lanes blocked. Expect delays.

Moderate Accident

I-80 W 1 day, 2 hours ago

CHP : Traffic Collision on I-580 Eastbound at Richmond San Rafael Bridge (Richmond). Right lane blocked. Expect delays.

I-580 E 1 day, 2 hours ago

CHP : Traffic Hazard on I-680 Northbound north of Sycamore Valley Rd (Danville). Lane affected. Expect delays.

Moderate Accident

I-680 N 1 day, 2 hours ago

CHP : Traffic Hazard on I-680 Northbound south of El Cerro Blvd (Danville). 2nd lane from the left blocked. Expect delays.

Moderate Accident

I-680 N 1 day, 3 hours ago

CHP : Traffic Hazard on I-680 Northbound south of CA-242 N (Concord). Lane affected. Expect delays.

Moderate Accident

I-680 N 1 day, 3 hours ago

CHP : Disabled vehicle on I-680 Southbound exiting at S Main St (Walnut Creek). Left lane blocked. Expect delays.

Moderate Accident

I-680 S 1 day, 3 hours ago

CHP : Traffic Hazard on CA-4 Eastbound east of Bailey Rd (Pittsburg). Right lane blocked. Expect delays.

Moderate Accident

CA-4 E 1 day, 7 hours ago

CHP : Traffic Hazard on I-80 Westbound east of El Portal Dr (San Pablo). Lanes affected. Expect delays.

Moderate Accident

I-80 W 1 day, 7 hours ago