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Contra Costa Car Accidents & Crashes

Contra Costa County has recorded 1,522 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 May 29, 2026.

Breakdown by type: 1,154 accident, 368 construction.

1,522

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

19

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 1,522 results

1154 accident 368 construction

Caltrans : Roadwork on CA-24 Eastbound exiting at Acalanes Rd (Lafayette). Off Ramp closed until 2 PM. From 9:00 AM Friday, May 29, 2026 to 2:00 PM Friday, May 29, 2026.

CA-24 E 5 minutes ago Live

Caltrans : Roadwork on CA-24 Eastbound at Acalanes Rd (Lafayette). Off Ramp closed. Expect delays. From 9:00 AM Friday, May 29, 2026 to 2:00 PM Friday, May 29, 2026.

CA-24 E 5 minutes ago Live

CHP : Disabled truck on I-680 Northbound north of Alcosta Blvd (San Ramon). Right lane blocked. Expect delays.

Moderate Accident

I-680 N 3 hours, 5 minutes ago

CHP : Traffic Hazard on I-680 Northbound north of Treat Blvd (Walnut Creek). Lane affected. Expect delays.

Moderate Accident

I-680 N 3 hours, 20 minutes ago

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

Moderate Accident

I-680 N 4 hours, 35 minutes ago

CHP : Residual delays on I-580 Westbound at Richmond San Rafael Bridge - Toll Plaza (Richmond). Right shoulder affected. Expect delays.

I-580 W 5 hours, 35 minutes ago

CHP : Disabled vehicle on CA-4 Westbound entering at Railroad Ave (Pittsburg). On Ramp blocked. Expect delays.

CA-4 W 6 hours, 5 minutes ago

Caltrans : Roadwork on CA-4 Westbound between Marsh Creek Rd (Brentwood) and Balfour Rd (Antioch). All lanes closed until 5 AM. From 7:30 PM Thursday, May 28, 2026 to 5:00 AM Friday, May 29, 2026.

CA-4 W 7 hours, 20 minutes ago

Caltrans : Roadwork on CA-4 Eastbound and Westbound at Sand Creek Rd (Brentwood). Lane closed. One way traffic control in effect. From 7:30 PM Thursday, May 28, 2026 to 5:00 AM Friday, May 29, 2026.

CA-4 E 7 hours, 20 minutes ago

Caltrans : Roadwork on I-80 Eastbound between Appian Way (Pinole) and CA-4 E (Hercules). Various lanes closed until 10 AM. From 9:00 PM Thursday, May 28, 2026 to 10:00 AM Friday, May 29, 2026.

I-80 E 7 hours, 35 minutes ago

Caltrans : Roadwork on I-80 Westbound between Willow Ave (Hercules) and CA-4 E (Hercules). Various lanes closed until 5 AM. From 6:00 PM Thursday, May 28, 2026 to 5:00 AM Friday, May 29, 2026.

I-80 W 8 hours, 20 minutes ago

Caltrans : Roadwork on I-80 Westbound exiting at Willow Ave (Hercules). Off Ramp closed until 5 AM. From 7:00 PM Thursday, May 28, 2026 to 5:00 AM Friday, May 29, 2026.

I-80 W 8 hours, 20 minutes ago

Caltrans : Roadwork on CA-4 Westbound at Discovery Bay Blvd (Discovery Bay). Lane closed. One way traffic control in effect. From 8:00 PM Thursday, May 28, 2026 to 4:00 AM Friday, May 29, 2026.

CA-4 W 8 hours, 35 minutes ago

Caltrans : Roadwork on I-80 Westbound between CA-4 E (Hercules) and Pinole Valley Rd (Pinole). Various lanes closed until 6 AM. From 8:00 PM Thursday, May 28, 2026 to 6:00 AM Friday, May 29, 2026.

I-80 W 9 hours, 20 minutes ago

Caltrans : Roadwork on I-80 Westbound between Cutting Blvd (El Cerrito) and Carlson Blvd (Richmond). Lane closed until 8 PM. From 5:00 PM Thursday, May 28, 2026 to 8:00 PM Thursday, May 28, 2026.

I-80 W 16 hours, 20 minutes ago

CHP : Disabled vehicle on I-680 Northbound south of Bollinger Canyon Rd (San Ramon). Lane affected. Expect delays.

Moderate Accident

I-680 N 16 hours, 50 minutes ago

CHP : Traffic Hazard on CA-4 Eastbound west of G St (Antioch). Lanes affected. Expect delays.

Moderate Accident

CA-4 E 17 hours, 50 minutes ago

CHP : Traffic Hazard on I-680 Northbound north of Bollinger Canyon Rd (San Ramon). 3rd lane from the left affected. Expect delays.

Moderate Accident

I-680 N 17 hours, 50 minutes ago

CHP : Traffic Collision on I-680 Northbound north of El Cerro Blvd (Danville). Left lanes blocked. Expect delays.

Moderate Accident

I-680 N 18 hours, 50 minutes ago

CHP : Traffic Collision on I-680 Northbound north of El Cerro Blvd (Danville). Lane affected. Expect delays.

Moderate Accident

I-680 N 20 hours, 5 minutes ago

CHP : Residual delays on I-680 Northbound at N Main St (Walnut Creek). Right shoulder affected. Expect delays.

Moderate Accident

I-680 N 21 hours, 35 minutes ago

Caltrans : Roadwork on I-580 Westbound between Richmond San Rafael Bridge - Toll Plaza (Richmond) and Main St (San Quentin). Lane closed until 2 PM. From 11:00 AM Thursday, May 28, 2026 to 2:00 PM Thursday, May 28, 2026.

I-580 W 22 hours, 20 minutes ago

CHP : High winds on CA-160 Northbound and Southbound between Antioch Bridge - Toll Plaza (Oakley) and Sacramento County Line (Oakley). Lanes affected. Traffic advisory in effect.

CA-160 N 22 hours, 20 minutes ago

CHP : Traffic Collision with Injuries on CA-24 Eastbound at Wilder Road (Orinda). Right lane and entrance ramp blocked. Expect delays.

CA-24 E 1 day, 3 hours ago

CHP : Flooding on I-80 Eastbound exiting at Barrett Ave (Richmond). Right lane affected. Expect delays.

Moderate Accident

I-80 E 1 day, 4 hours ago

CHP : Residual delays on CA-24 E-I-680 S Ramp Southbound south of CA-24 E (Walnut Creek). Center Divider blocked. Expect delays.

CA-24 E-I-680 S Ramp 1 day, 4 hours ago

CHP : Traffic Hazard on I-80 Westbound at Hilltop Dr (San Pablo). Lane blocked. Expect delays.

Moderate Accident

I-80 W 1 day, 5 hours ago

CHP : Traffic Collision and Overturned vehicle on CA-4 Eastbound west of Arnold Industrial Pl (Concord). Right lane blocked. Expect delays.

Moderate Accident

CA-4 E 1 day, 5 hours ago

CHP : Traffic Collision on I-680 Southbound east of CA-4 E (Martinez). Right shoulder blocked. Expect delays.

Moderate Accident

I-680 S 1 day, 6 hours ago

Caltrans : Roadwork on CA-4 Westbound at Marsh Creek Rd (Brentwood). All lanes closed until 5 AM. From 7:30 PM Wednesday, May 27, 2026 to 5:00 AM Thursday, May 28, 2026.

CA-4 W 1 day, 7 hours ago

Caltrans : Roadwork on I-80 Eastbound between CA-4 E (Hercules) and Willow Ave (Hercules). Various lanes closed until 5 AM. From 7:00 PM Wednesday, May 27, 2026 to 5:00 AM Thursday, May 28, 2026.

I-80 E 1 day, 7 hours ago

Caltrans : Roadwork on I-80 Westbound between CA-4 E (Hercules) and Pinole Valley Rd (Pinole). Various lanes closed until 6 AM. From 8:00 PM Wednesday, May 27, 2026 to 6:00 AM Thursday, May 28, 2026.

I-80 W 1 day, 8 hours ago

Caltrans : Roadwork on I-80 Westbound exiting at Willow Ave (Hercules). Off Ramp closed until 5 AM. From 7:00 PM Wednesday, May 27, 2026 to 5:00 AM Thursday, May 28, 2026.

I-80 W 1 day, 8 hours ago

CHP : Traffic Collision with Injuries on CA-4 Eastbound exiting at Bailey Rd (Pittsburg). Off Ramp closed. Expect delays.

CA-4 E 1 day, 15 hours ago

CHP : Traffic Hazard on I-580 Eastbound west of Castro St (Richmond). Lane blocked. Expect delays.

Moderate Accident

I-580 E 1 day, 17 hours ago

CHP : Fire on CA-4 Eastbound east of Somersville Rd (Antioch). Right shoulder affected. Expect delays.

Moderate Accident

CA-4 E 1 day, 18 hours ago

CHP : Traffic Hazard on I-580 Westbound east of Bayview Ave (Richmond). Right shoulder affected. Expect delays.

Moderate Accident

I-580 W 1 day, 19 hours ago

CHP : Traffic Hazard on CA-24 Westbound west of I-680 N (Walnut Creek). Lanes blocked. Expect delays.

Moderate Accident

CA-24 W 1 day, 20 hours ago

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

Moderate Accident

I-80 W 1 day, 20 hours ago

Caltrans : Roadwork on CA-4 Eastbound between CA-160 (Antioch) and Laurel Rd (Antioch). Right shoulder closed until 3 PM. From 9:00 AM Wednesday, May 27, 2026 to 3:00 PM Wednesday, May 27, 2026.

CA-4 E 2 days, 1 hour ago

Caltrans : Roadwork on CA-4 Westbound at Discovery Bay Blvd (Discovery Bay). Lane closed until 3-30 PM. From 8:00 AM Wednesday, May 27, 2026 to 3:30 PM Wednesday, May 27, 2026.

CA-4 W 2 days, 2 hours ago

CHP : Traffic Collision on I-80 Westbound west of Willow Ave (Hercules). Right shoulder affected. Expect delays.

Moderate Accident

I-80 W 2 days, 3 hours ago

CHP : Traffic Collision on CA-4 Eastbound east of Hillcrest Ave (Antioch). Right shoulder affected. Expect delays.

Moderate Accident

CA-4 E 2 days, 4 hours ago

CHP : Traffic Collision with Injuries and Overturned vehicle on CA-4 Eastbound west of Laurel Rd (Antioch). Right shoulder affected. Expect delays.

CA-4 E 2 days, 4 hours ago

CHP : Traffic Hazard on CA-4 Westbound east of Hillcrest Ave (Antioch). Lanes affected. Expect delays.

Moderate Accident

CA-4 W 2 days, 5 hours ago

Caltrans : Roadwork on CA-4 Westbound exiting at Center Ave (Martinez). Off Ramp closed until 6 AM. From 10:00 PM Tuesday, May 26, 2026 to 6:00 AM Wednesday, May 27, 2026.

CA-4 W 2 days, 7 hours ago

Caltrans : Roadwork on CA-4 Eastbound at Sand Creek Rd (Brentwood). All lanes closed until 5 AM. From 7:30 PM Tuesday, May 26, 2026 to 5:00 AM Wednesday, May 27, 2026.

CA-4 E 2 days, 7 hours ago

Caltrans : Roadwork on CA-4 Westbound at Marsh Creek Rd (Brentwood). All lanes closed until 5 AM. From 7:30 PM Tuesday, May 26, 2026 to 5:00 AM Wednesday, May 27, 2026.

CA-4 W 2 days, 7 hours ago

Caltrans : Roadwork on I-80 Westbound between Willow Ave (Hercules) and CA-4 E (Hercules). Various lanes closed until 5 AM. From 6:00 PM Tuesday, May 26, 2026 to 5:00 AM Wednesday, May 27, 2026.

I-80 W 2 days, 8 hours ago

Caltrans : Roadwork on I-80 Westbound between San Pablo Dam Rd (San Pablo) and Central Ave (Richmond). Various lanes closed until 5 AM. From 7:00 PM Tuesday, May 26, 2026 to 5:00 AM Wednesday, May 27, 2026.

I-80 W 2 days, 11 hours ago