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Contra Costa Car Accidents & Crashes

Contra Costa County has recorded 5,818 traffic crashes since 2024, with no fatalities on record. In the last 24 hours, 31 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. 5, 2026.

Breakdown by type: 3,887 accident, 1,762 construction, 1 closure.

5,650

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

18

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 5,650 results

3887 accident 1762 construction 1 closure

Caltrans : Long-term construction on I-580 Westbound entering at Western Dr (Richmond). On Ramp closed. Expect delays. From 5:15 AM Monday, September 28, 2026 to 12:00 AM Monday, May 24, 2027.

I-580 W 14 minutes ago Live

Caltrans : Roadwork on CA-4 Eastbound and Westbound between Marsh Creek Rd (Brentwood) and Byron Hwy (Brentwood). All lanes closed. Avoid the area. From 7:00 PM Wednesday, November 04, 2026 to 5:00 AM Thursday, November 05, 2026.

CA-4 E 14 minutes ago Live

Caltrans : Roadwork on CA-4 Eastbound at Walnut Blvd (Brentwood). All lanes closed until 5 AM. From 7:00 PM Wednesday, November 04, 2026 to 5:00 AM Thursday, November 05, 2026.

CA-4 E 14 minutes ago Live

Caltrans : Roadwork on CA-4 Eastbound at Bixler Rd (Discovery Bay). All lanes closed until 5 AM. From 7:00 PM Wednesday, November 04, 2026 to 5:00 AM Thursday, November 05, 2026.

CA-4 E 14 minutes ago Live

Caltrans : Roadwork on CA-4 Eastbound and Westbound between Byron Hwy (Brentwood) and Walnut Blvd (Brentwood). All lanes closed. Avoid the area. From 7:00 PM Wednesday, November 04, 2026 to 5:00 AM Thursday, November 05, 2026.

CA-4 W 14 minutes ago Live

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, November 04, 2026 to 4:00 AM Thursday, November 05, 2026.

CA-4 E 44 minutes ago

CHP : Traffic Hazard on I-680 Southbound south of Sycamore Valley Rd (Danville). Right lane affected. Expect delays.

Moderate Accident

I-680 S 2 hours, 14 minutes ago

CHP : Traffic Collision with Injuries on CA-4 Eastbound at Railroad Ave (Pittsburg). Off Ramp affected. Expect delays.

CA-4 E 2 hours, 44 minutes ago

CHP : Disabled vehicle on I-680 Southbound north of CA-24 W (Walnut Creek). Right shoulder affected. Expect delays.

Moderate Accident

I-680 S 2 hours, 59 minutes ago

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

CA-4 E 3 hours, 14 minutes ago

CHP : Pothole on I-80 Eastbound west of San Pablo Dam Rd (San Pablo). Right lane affected. Expect delays.

Moderate Accident

I-80 E 3 hours, 59 minutes ago

CHP : Disabled vehicle on CA-24 Eastbound at Caldecott Tunnel Split (Orinda). Right lane blocked. Expect delays.

Moderate Accident

CA-24 E 4 hours, 29 minutes ago

Caltrans : Roadwork on CA-4 Westbound between Pacheco Blvd (Pacheco) and Morello Ave (Martinez). Lane closed until 10-30 PM. From 5:45 PM Wednesday, November 04, 2026 to 10:30 PM Wednesday, November 04, 2026.

CA-4 W 4 hours, 29 minutes ago

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

Moderate Accident

CA-4 E 6 hours, 44 minutes ago

CHP : Fire on I-80 Westbound east of Cutting Blvd (El Cerrito). Right shoulder affected. Expect delays.

Moderate Accident

I-80 W 6 hours, 59 minutes ago

CHP : Vehicle fire on CA-160 Southbound entering at Wilbur Ave (Antioch). On Ramp blocked. Expect delays.

CA-160 S 6 hours, 59 minutes ago

CHP : Pothole on I-80 Westbound west of Appian Way (Pinole). Right lane affected. Expect delays.

Moderate Accident

I-80 W 6 hours, 59 minutes ago

CHP : Traffic Hazard on CA-4 Eastbound at CA-242 N (Concord). Lane blocked. Expect delays.

Moderate Accident

CA-4 E 7 hours, 44 minutes ago

CHP : Traffic Collision on I-680 Northbound entering at Concord Ave (Pleasant Hill). On Ramp blocked. Expect delays.

I-680 N 7 hours, 59 minutes ago

CHP : Disabled vehicle on I-680 Northbound at Benicia Bridge - Toll Plaza (Martinez). Right lanes affected. Expect delays.

I-680 N 9 hours, 59 minutes ago

CHP : Traffic Hazard on I-80 Westbound east of Carlson Blvd (Richmond). Right lane blocked. Expect delays.

Moderate Accident

I-80 W 10 hours, 14 minutes ago

CHP : Traffic Hazard on I-680 Southbound north of Livorna Rd (Alamo). 2nd lane from the left blocked. Expect delays.

Moderate Accident

I-680 S 11 hours, 44 minutes ago

CHP : Traffic Collision on I-80 Westbound east of Cutting Blvd (El Cerrito). Right lane blocked. Expect delays.

Moderate Accident

I-80 W 14 hours, 44 minutes ago

CHP : Brush fire on I-80 Westbound east of Cutting Blvd (El Cerrito). Right shoulder affected. Expect delays.

Moderate Accident

I-80 W 14 hours, 59 minutes ago

CHP : Traffic Hazard on CA-24 Westbound east of ST Stephens Dr (Orinda). Right lane affected. Expect delays.

Moderate Accident

CA-24 W 15 hours, 29 minutes ago

CHP : Traffic Hazard on CA-4 Eastbound west of CA-242 S (Concord). Right lane affected. Expect delays.

Moderate Accident

CA-4 E 16 hours, 29 minutes ago

CHP : Traffic Hazard on CA-24 Westbound east of Acalanes Rd (Lafayette). Left lanes blocked. Expect delays.

Moderate Accident

CA-24 W 16 hours, 44 minutes ago

CHP : Traffic Hazard on I-680 Northbound south of Sycamore Valley Rd (Danville). Center lanes blocked. Expect delays.

Moderate Accident

I-680 N 16 hours, 44 minutes ago

CHP : Disabled vehicle on I-580 Westbound at Richmond San Rafael Bridge (Richmond). Lane affected. Expect delays.

I-580 W 18 hours, 14 minutes ago

CHP : Traffic Collision with Injuries on CA-4 Westbound at Cummings Skwy (Port Costa). Right lane blocked. Expect delays.

Moderate Accident

CA-4 W 18 hours, 44 minutes ago

Caltrans : Roadwork on I-680 Southbound between Bollinger Canyon Rd (San Ramon) and Alcosta Blvd (San Ramon). Various lanes closed until 5 AM. From 8:00 PM Tuesday, November 03, 2026 to 5:00 AM Wednesday, November 04, 2026.

I-680 S 19 hours, 29 minutes ago

Caltrans : Roadwork on I-680 Southbound exiting at Sycamore Valley Rd (Danville). Off Ramp closed until 5 AM. From 9:00 PM Tuesday, November 03, 2026 to 5:00 AM Wednesday, November 04, 2026.

I-680 S 19 hours, 29 minutes ago

Caltrans : Roadwork on I-680 Southbound exiting at Bollinger Canyon Rd (San Ramon). Off Ramp closed until 5 AM. From 9:00 PM Tuesday, November 03, 2026 to 5:00 AM Wednesday, November 04, 2026.

I-680 S 19 hours, 29 minutes ago

Caltrans : Roadwork on I-680 Southbound entering at Diablo Rd (Danville). On Ramp closed until 5 AM. From 8:00 PM Tuesday, November 03, 2026 to 5:00 AM Wednesday, November 04, 2026.

I-680 S 19 hours, 29 minutes ago

Caltrans : Roadwork on I-680 Southbound between Sycamore Valley Rd (Danville) and Bollinger Canyon Rd (San Ramon). Various lanes closed until 5 AM. From 8:00 PM Tuesday, November 03, 2026 to 5:00 AM Wednesday, November 04, 2026.

I-680 S 19 hours, 29 minutes ago

CHP : Disabled vehicle on I-580 Eastbound west of Central Ave (Richmond). Right shoulder affected. Expect delays.

Moderate Accident

I-580 E 1 day, 2 hours ago

CHP : Traffic Collision on CA-4 Eastbound east of Cummings Skwy (Port Costa). Right lane blocked. Expect delays.

Moderate Accident

CA-4 E 1 day, 2 hours ago

CHP : Traffic Hazard on I-580 Westbound east of Central Ave (Richmond). Right lane blocked. Expect delays.

Moderate Accident

I-580 W 1 day, 3 hours ago

CHP : Severe traffic alert and Traffic Collision with Injuries and Overturned vehicle on CA-24 Westbound west of Wilder Road (Orinda). Left lanes blocked. Expect delays.

CA-24 W 1 day, 3 hours ago

CHP : Traffic Collision on I-80 Eastbound exiting at Potrero Ave (El Cerrito). Lane affected. Expect delays.

Moderate Accident

I-80 E 1 day, 4 hours ago

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

Moderate Accident

CA-4 E 1 day, 4 hours ago

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

Moderate Accident

I-80 W 1 day, 4 hours ago

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

Moderate Accident

I-80 E 1 day, 6 hours 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 day, 6 hours ago

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

Moderate Accident

I-580 W 1 day, 6 hours 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 1 day, 7 hours ago

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

I-680 N 1 day, 8 hours ago

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

Moderate Accident

CA-4 E 1 day, 8 hours 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 1 day, 10 hours 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 1 day, 10 hours ago