CA · County

Contra Costa Car Accidents & Crashes

Contra Costa County has recorded 1,909 traffic crashes since 2024, with no fatalities on record. In the last 24 hours, 15 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 June 12, 2026.

Breakdown by type: 479 accident.

479

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

1

Today

Reported since midnight

Today's Accidents Today's Fatalities

showing most recent 479 incidents with location data · click a marker to view details

Crash Records

Contra Costa Incidents 479 results

479 accident

CHP : Traffic Collision on I-80 Eastbound west of El Portal Dr (San Pablo). 3rd lane from the left blocked. Expect delays.

Moderate Accident

I-80 E 3 minutes ago Live

CHP : Traffic Hazard on I-580 Eastbound at Western Dr (Richmond). 2nd lane from the left affected. Expect delays.

Moderate Accident

I-580 E 3 minutes ago Live

CHP : Disabled vehicle on CA-242 Southbound exiting at Concord Ave (Concord). Center lane blocked. Expect delays.

Moderate Accident

CA-242 S 1 hour, 18 minutes ago

CHP : Traffic Hazard on I-580 Eastbound west of Marina Bay Pky (Richmond). Right lane affected. Expect delays.

Moderate Accident

I-580 E 9 hours, 3 minutes ago

CHP : Traffic Hazard on I-80 Westbound east of Central Ave (Richmond). Right lane affected. Expect delays.

Moderate Accident

I-80 W 21 hours, 18 minutes ago

CHP : Traffic Hazard on I-680 Northbound south of Arthur Rd (Martinez). 3rd lane from the left affected. Expect delays.

Moderate Accident

I-680 N 21 hours, 48 minutes ago

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

Moderate Accident

I-580 W 22 hours, 48 minutes ago

CHP : Disabled vehicle on I-680 Northbound at Newell Ave (Walnut Creek). Lane blocked. Expect delays.

Moderate Accident

I-680 N 1 day ago

CHP : Traffic Hazard on CA-4 Westbound east of Railroad Ave (Pittsburg). 2nd lane from the left affected. Expect delays.

Moderate Accident

CA-4 W 1 day ago

CHP : Vehicle fire on I-680 Northbound south of Waterfront Rd (Martinez). Right lane blocked. Expect delays.

Moderate Accident

I-680 N 1 day, 1 hour ago

CHP : Traffic Collision on I-680 Northbound south of Livorna Rd (Alamo). Center lane affected. Expect delays.

Moderate Accident

I-680 N 1 day, 8 hours ago

CHP : Test message on CA-4 Eastbound west of Balfour Rd (Brentwood). All lanes closed. Expect delays.

Moderate Accident

CA-4 E 1 day, 10 hours ago

CHP : Grass fire on CA-24 Eastbound at Fish Ranch Rd (Orinda). Lanes affected. Expect delays.

Moderate Accident

CA-24 E 1 day, 11 hours ago

CHP : Downed wires on CA-4 Eastbound west of Sycamore Ave (Hercules). Lane affected. Expect delays.

Moderate Accident

CA-4 E 1 day, 21 hours ago

CHP : Traffic Hazard on I-680 Southbound north of Willow Pass Rd (Concord). Lane affected. Expect delays.

Moderate Accident

I-680 S 1 day, 22 hours ago

CHP : Traffic Hazard on I-80 Eastbound west of CA-4 E (Hercules). 2nd lane from the left affected. Expect delays.

Moderate Accident

I-80 E 1 day, 22 hours ago

CHP : Traffic Hazard on I-680 Southbound north of Crow Canyon Rd (San Ramon). Lane affected. Expect delays.

Moderate Accident

I-680 S 1 day, 23 hours ago

CHP : Traffic Hazard on I-680 Southbound south of Sycamore Valley Rd (Danville). Left and center lanes affected. Expect delays.

Moderate Accident

I-680 S 1 day, 23 hours ago

CHP : Traffic Collision on I-80 Eastbound at Willow Ave (Hercules). Right shoulder affected. Expect delays.

Moderate Accident

I-80 E 2 days ago

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

Moderate Accident

I-80 E 2 days ago

CHP : Traffic Hazard on I-80 Eastbound west of Cummings Skwy (Crockett). Lane affected. Expect delays.

Moderate Accident

I-80 E 2 days, 1 hour ago

CHP : Traffic Hazard on CA-4 Eastbound west of Willow Pass Rd (Pittsburg). Right lane affected. Expect delays.

Moderate Accident

CA-4 E 2 days, 1 hour ago

CHP : Traffic Collision on I-80 Eastbound east of Pinole Valley Rd (Pinole). Right lane blocked. Expect delays.

Moderate Accident

I-80 E 2 days, 1 hour ago

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

Moderate Accident

CA-4 W 2 days, 8 hours ago

CHP : Residual delays on I-680 Northbound at Arthur Rd (Martinez). Right shoulder affected. Expect delays.

Moderate Accident

I-680 N 2 days, 11 hours ago

CHP : Disabled vehicle on CA-4 Eastbound east of Willow Pass Rd (Pittsburg). 2nd lane from the left blocked. Expect delays.

Moderate Accident

CA-4 E 2 days, 21 hours ago

CHP : Traffic Collision on I-680 Northbound south of S Main St (Walnut Creek). Lane affected. Expect delays.

Moderate Accident

I-680 N 2 days, 22 hours ago

CHP : Traffic Collision with Injuries on CA-4 Westbound east of Loveridge Rd (Pittsburg). Lane affected. Expect delays.

Moderate Accident

CA-4 W 2 days, 22 hours ago

CHP : Traffic Collision on CA-24 Westbound west of I-680 N (Walnut Creek). Lane affected. Expect delays.

Moderate Accident

CA-24 W 3 days ago

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

Moderate Accident

CA-24 E 3 days, 9 hours ago

CHP : Residual delays on CA-4 Westbound east of Bailey Rd (Pittsburg). Right shoulder affected. Expect delays.

Moderate Accident

CA-4 W 3 days, 9 hours ago

CHP : Disabled vehicle on CA-4 Westbound east of Bailey Rd (Pittsburg). Left lane blocked. Expect delays.

Moderate Accident

CA-4 W 3 days, 11 hours ago

CHP : Residual delays on CA-4 Westbound at Sycamore Ave (Hercules). Right shoulder affected. Expect delays.

Moderate Accident

CA-4 W 3 days, 22 hours ago

CHP : Traffic Collision with Injuries on CA-4 Westbound east of Bailey Rd (Pittsburg). Left lane blocked. Expect delays.

Moderate Accident

CA-4 W 3 days, 23 hours ago

CHP : Traffic Hazard on CA-4 Westbound east of Loveridge Rd (Pittsburg). Left lanes affected. Expect delays.

Moderate Accident

CA-4 W 3 days, 23 hours ago

CHP : Traffic Hazard on CA-4 Westbound east of I-680 N (Martinez). Right lane affected. Expect delays.

Moderate Accident

CA-4 W 4 days, 1 hour ago

CHP : Residual delays on CA-4 Westbound west of Cummings Skwy (Port Costa). Left lane closed. Expect delays.

Moderate Accident

CA-4 W 4 days, 2 hours ago

CHP : Traffic Hazard on I-680 Northbound south of Waterfront Rd (Martinez). Lane blocked. Expect delays.

Moderate Accident

I-680 N 4 days, 4 hours ago

CHP : Traffic Hazard on I-680 Southbound north of Olympic Blvd (Walnut Creek). Center lanes affected. Expect delays.

Moderate Accident

I-680 S 4 days, 10 hours ago

CHP : Traffic Collision on I-80 Westbound east of El Portal Dr (San Pablo). 2nd lane from the left affected. Expect delays.

Moderate Accident

I-80 W 4 days, 10 hours ago

CHP : Disabled vehicle on I-80 Eastbound east of San Pablo Dam Rd (San Pablo). Lane affected. Expect delays.

Moderate Accident

I-80 E 4 days, 20 hours ago

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

Moderate Accident

I-580 W 4 days, 21 hours ago

CHP : Traffic Hazard on I-680 Southbound at CA-24 W (Walnut Creek). Lane blocked. Expect delays.

Moderate Accident

I-680 S 4 days, 22 hours ago

CHP : Disabled vehicle on CA-242 Southbound at Concord Ave (Concord). Lane affected. Expect delays.

Moderate Accident

CA-242 S 4 days, 22 hours ago

CHP : Disabled vehicle on CA-4 Eastbound west of Willow Pass Rd (Pittsburg). Lane affected. Expect delays.

Moderate Accident

CA-4 E 4 days, 23 hours ago

CHP : Traffic Hazard on CA-160 Northbound north of Sacramento County Line (Oakley). Lane affected. Expect delays.

Moderate Accident

CA-160 N 5 days ago

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

Moderate Accident

I-580 E 5 days, 1 hour ago

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

Moderate Accident

I-680 N 5 days, 1 hour ago

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

Moderate Accident

CA-4 E 5 days, 2 hours ago

CHP : Traffic Hazard on I-580 Westbound west of Bayview Ave (Richmond). Lane affected. Expect delays.

Moderate Accident

I-580 W 5 days, 3 hours ago