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Contra Costa Car Accidents & Crashes

Contra Costa County has recorded 3,211 traffic crashes since 2024, with no fatalities on record. In the last 24 hours, 22 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 30, 2026.

Breakdown by type: 1,777 accident, 717 construction.

2,494

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

10

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 2,494 results

1777 accident 717 construction

Caltrans : Roadwork on CA-4 Westbound between CA-160 (Antioch) and Hillcrest Ave (Antioch). Various lanes closed until 5 AM. From 7:00 PM Thursday, July 30, 2026 to 5:00 AM Friday, July 31, 2026.

CA-4 W 5 minutes ago Live

Caltrans : Roadwork on CA-4 Westbound entering at Hillcrest Ave (Antioch). On Ramp closed until 5 AM. From 7:00 PM Thursday, July 30, 2026 to 5:00 AM Friday, July 31, 2026.

CA-4 W 5 minutes ago Live

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 Thursday, July 30, 2026 to 5:00 AM Friday, July 31, 2026.

CA-4 W 5 minutes ago Live

Caltrans : Roadwork on CA-4 Westbound exiting at Hillcrest Ave (Antioch). Off Ramp closed until 5 AM. From 7:00 PM Thursday, July 30, 2026 to 5:00 AM Friday, July 31, 2026.

CA-4 W 5 minutes ago Live

Caltrans : Roadwork on I-580 Westbound between Western Dr (Richmond) and Richmond San Rafael Bridge - Toll Plaza (Richmond). Various lanes closed until 6 AM. From 7:00 PM Thursday, July 30, 2026 to 6:00 AM Friday, July 31, 2026.

I-580 W 5 minutes ago Live

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

Moderate Accident

I-80 W 1 hour, 50 minutes ago

CHP : Traffic Collision on CA-4 Eastbound east of Discovery Bay Blvd (Discovery Bay). Lanes blocked. Expect delays.

Moderate Accident

CA-4 E 2 hours, 20 minutes ago

CHP : Traffic Hazard on CA-24 Westbound west of Acalanes Rd (Lafayette). 3rd lane from the left affected. Expect delays.

Moderate Accident

CA-24 W 2 hours, 20 minutes ago

CHP : Traffic Hazard on CA-242 Southbound north of Clayton Rd (Concord). Lanes affected. Expect delays.

Moderate Accident

CA-242 S 2 hours, 20 minutes ago

CHP : Traffic Hazard on I-680 Southbound north of Oak Park Blvd (Pleasant Hill). Right lane blocked. Expect delays.

Moderate Accident

I-680 S 2 hours, 35 minutes ago

CHP : Traffic Collision and Debris on CA-4 Eastbound east of Cummings Skwy (Port Costa). Left lane affected. Expect delays.

Moderate Accident

CA-4 E 14 hours, 20 minutes ago

CHP : Traffic Hazard on CA-24 Eastbound at Caldecott Tunnel Split (Orinda). 2nd lane from the left affected. Expect delays.

Moderate Accident

CA-24 E 15 hours, 5 minutes ago

CHP : Traffic Collision on I-580 Westbound east of Richmond San Rafael Bridge - Toll Plaza (Richmond). Left lane blocked. Expect delays.

I-580 W 15 hours, 5 minutes ago

Caltrans : Roadwork on I-680 Southbound exiting at Livorna Rd (Alamo). Off Ramp closed until 7 AM. From 8:00 PM Wednesday, July 29, 2026 to 7:00 AM Thursday, July 30, 2026.

I-680 S 16 hours, 50 minutes ago

Caltrans : Roadwork on I-680 Southbound between Rudgear Rd (Walnut Creek) and Stone Valley Rd (Alamo). Various lanes closed until 5 AM. From 8:00 PM Wednesday, July 29, 2026 to 5:00 AM Thursday, July 30, 2026.

I-680 S 17 hours, 5 minutes ago

Caltrans : Roadwork on I-680 Southbound entering at Bollinger Canyon Rd (San Ramon). On Ramp closed until 5 AM. From 7:00 PM Wednesday, July 29, 2026 to 5:00 AM Thursday, July 30, 2026.

I-680 S 17 hours, 5 minutes ago

Caltrans : Roadwork on CA-4 Eastbound entering at Mcewen Rd (Martinez). On Ramp closed until 5 AM. From 8:00 PM Wednesday, July 29, 2026 to 5:00 AM Thursday, July 30, 2026.

CA-4 E 17 hours, 5 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 Wednesday, July 29, 2026 to 5:00 AM Thursday, July 30, 2026.

I-680 S 17 hours, 5 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 Wednesday, July 29, 2026 to 5:00 AM Thursday, July 30, 2026.

I-680 S 17 hours, 20 minutes ago

CHP : Disabled tractor trailer on I-680 Southbound south of Chilpancingo Pky (Pleasant Hill). Lane blocked. Expect delays.

Moderate Accident

I-680 S 17 hours, 50 minutes ago

CHP : Traffic Collision on I-680 Southbound at CA-24 E-I-680 S Ramp (Walnut Creek). Left shoulder affected. Expect delays.

Moderate Accident

I-680 S 18 hours, 20 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 Wednesday, July 29, 2026 to 6:00 AM Thursday, July 30, 2026.

I-580 W 18 hours, 35 minutes ago

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 20 hours, 5 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 Wednesday, July 29, 2026 to 5:00 AM Thursday, July 30, 2026.

CA-4 W 20 hours, 5 minutes ago

Caltrans : Roadwork on CA-24 Westbound between Fish Ranch Rd (Orinda) and Caldecott Ln (Oakland). All lanes closed until 4-30 AM. From 10:00 PM Wednesday, July 29, 2026 to 4:30 AM Thursday, July 30, 2026.

CA-24 W 21 hours, 20 minutes ago

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

Moderate Accident

I-680 N 1 day, 2 hours ago

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

Moderate Accident

CA-4 E 1 day, 4 hours ago

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

CA-4 E 1 day, 12 hours ago

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

Moderate Accident

I-680 S 1 day, 13 hours 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 1 day, 13 hours ago

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

CA-4 E 1 day, 13 hours ago

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

Moderate Accident

I-80 W 1 day, 14 hours 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 1 day, 14 hours 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 1 day, 15 hours 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 1 day, 17 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 Tuesday, July 28, 2026 to 5:00 AM Wednesday, July 29, 2026.

CA-4 W 1 day, 17 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 Tuesday, July 28, 2026 to 6:00 AM Wednesday, July 29, 2026.

I-580 W 1 day, 18 hours 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 1 day, 18 hours 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 1 day, 18 hours ago

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

I-80 E 1 day, 19 hours 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 1 day, 19 hours 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 1 day, 21 hours 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 1 day, 21 hours 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 1 day, 21 hours 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 1 day, 21 hours 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 1 day, 23 hours 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 2 days ago

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

I-580 E 2 days ago

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

Moderate Accident

I-80 W 2 days ago

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

Moderate Accident

CA-4 W 2 days ago