CA · County

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, 21 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: 862 accident.

862

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

7

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 862 results

862 accident

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

Moderate Accident

I-680 N 4 hours, 51 minutes ago

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

Moderate Accident

I-680 N 5 hours, 6 minutes ago

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

Moderate Accident

I-680 N 6 hours, 21 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 18 hours, 36 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 19 hours, 36 minutes ago

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

Moderate Accident

CA-4 E 19 hours, 36 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 20 hours, 36 minutes ago

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

Moderate Accident

I-680 N 21 hours, 51 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 23 hours, 21 minutes ago

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

Moderate Accident

I-80 E 1 day, 6 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, 7 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, 7 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, 7 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, 18 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, 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 1 day, 21 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, 22 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, 22 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, 5 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, 6 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, 6 hours ago

CHP : Traffic Hazard on I-680 Southbound north of Bollinger Canyon Rd (San Ramon). 2nd lane from the left affected. Expect delays.

Moderate Accident

I-680 S 2 days, 16 hours ago

CHP : Traffic Hazard on I-680 Northbound entering at Bollinger Canyon Rd (San Ramon). Right lane affected. Expect delays.

Moderate Accident

I-680 N 2 days, 19 hours ago

CHP : Traffic Hazard on CA-242 Northbound north of Grant St (Concord). Right lane affected. Expect delays.

Moderate Accident

CA-242 N 2 days, 20 hours ago

CHP : Fire on I-80 Eastbound exiting at Macdonald Ave (Richmond). Right shoulder affected. Expect delays.

Moderate Accident

I-80 E 2 days, 20 hours ago

CHP : Fire on I-80 Eastbound east of Potrero Ave (El Cerrito). Right shoulder affected. Expect delays.

Moderate Accident

I-80 E 2 days, 20 hours ago

CHP : Traffic Hazard on I-80 Westbound east of San Pablo Dam Rd (San Pablo). 2nd lane from the left blocked. Expect delays.

Moderate Accident

I-80 W 2 days, 21 hours ago

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

Moderate Accident

CA-4 E 2 days, 21 hours ago

CHP : Traffic Hazard on CA-4 Westbound east of A St (Antioch). 4th lane from the left affected. Expect delays.

Moderate Accident

CA-4 W 2 days, 22 hours ago

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

Moderate Accident

I-80 E 2 days, 23 hours ago

CHP : Traffic Hazard on CA-24 Eastbound east of Camino Pablo (Orinda). 4th lane from the left blocked. Expect delays.

Moderate Accident

CA-24 E 3 days ago

CHP : Traffic Hazard on I-680 Southbound north of S Main St (Walnut Creek). Right lanes affected. Expect delays.

Moderate Accident

I-680 S 3 days, 1 hour ago

CHP : Traffic Hazard on CA-4 Eastbound west of Alhambra Ave (Martinez). Left lane blocked. Expect delays.

Moderate Accident

CA-4 E 3 days, 3 hours ago

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

Moderate Accident

I-80 E 3 days, 4 hours ago

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

Moderate Accident

CA-4 E 3 days, 5 hours ago

CHP : Disabled vehicle on I-680 Northbound at El Cerro Blvd (Danville). 2nd lane from the left blocked. Expect delays.

Moderate Accident

I-680 N 3 days, 5 hours ago

CHP : Traffic Collision on I-680 Northbound south of Stone Valley Rd (Alamo). 2nd lane from the left blocked. Expect delays.

Moderate Accident

I-680 N 3 days, 5 hours ago

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

Moderate Accident

CA-24 W 3 days, 5 hours ago

CHP : Traffic Collision on I-80 Westbound west of Carlson Blvd (Richmond). Left lane blocked. Expect delays.

Moderate Accident

I-80 W 3 days, 7 hours ago

CHP : Traffic Collision with Injuries on I-580 Eastbound at Central Ave (Richmond). Lane affected. Expect delays.

Moderate Accident

I-580 E 3 days, 7 hours ago

CHP : Traffic Collision with Injuries on I-680 Southbound north of Stone Valley Rd (Alamo). Left lanes blocked. Expect delays.

Moderate Accident

I-680 S 3 days, 7 hours ago

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

Moderate Accident

I-680 S 3 days, 7 hours ago

CHP : Disabled vehicle on I-680 Southbound at Willow Pass Rd (Concord). Lane blocked. Expect delays.

Moderate Accident

I-680 S 3 days, 14 hours ago

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

Moderate Accident

I-580 W 3 days, 14 hours ago

CHP : Traffic Hazard on CA-24 Westbound east of Acalanes Rd (Lafayette). Lane affected. Expect delays.

Moderate Accident

CA-24 W 3 days, 16 hours ago

CHP : Disabled vehicle on CA-4 Westbound at Willow Pass Rd (Concord). Lane blocked. Expect delays.

Moderate Accident

CA-4 W 3 days, 16 hours ago

CHP : Disabled vehicle on I-80 Westbound east of Appian Way (Pinole). Lane blocked. Expect delays.

Moderate Accident

I-80 W 3 days, 17 hours ago

CHP : Disabled vehicle on CA-160 Northbound at Antioch Bridge - Toll Plaza (Oakley). Lane blocked. Expect delays.

Moderate Accident

CA-160 N 3 days, 20 hours ago

CHP : Disabled vehicle on I-580 Westbound east of Central Ave (Richmond). Lanes blocked. Expect delays.

Moderate Accident

I-580 W 3 days, 22 hours ago

CHP : Traffic Hazard on CA-4 Eastbound at I-680 N (Martinez). Lane blocked. Expect delays.

Moderate Accident

CA-4 E 3 days, 22 hours ago