CA · County

Contra Costa Car Accidents & Crashes

Contra Costa County has recorded 3,229 traffic crashes since 2024, with no fatalities on record. In the last 24 hours, 28 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 31, 2026.

Breakdown by type: 438 accident.

438

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

10

Today

Reported since midnight

Today's Accidents Today's Fatalities

showing most recent 438 incidents with location data · click a marker to view details

Crash Records

Contra Costa Incidents 438 results

438 accident

CHP : Traffic Hazard on CA-24 Eastbound west of Acalanes Rd (Lafayette). Center lanes affected. Expect delays.

Moderate Accident

CA-24 E 4 hours, 6 minutes ago

CHP : Fire on CA-4 Eastbound east of Alhambra Ave (Martinez). 2nd lane from the left blocked. Expect delays.

Moderate Accident

CA-4 E 4 hours, 51 minutes ago

CHP : Traffic Hazard on CA-24 Eastbound at Caldecott Tunnel Split (Orinda). Left lane blocked. Expect delays.

Moderate Accident

CA-24 E 5 hours, 21 minutes ago

CHP : Traffic Hazard on I-80 Westbound east of Hilltop Dr (San Pablo). HOV affected. Expect delays.

Moderate Accident

I-80 W 7 hours, 51 minutes ago

CHP : Disabled vehicle on I-80 Eastbound west of San Pablo Dam Rd (San Pablo). Left lane blocked. Expect delays.

Moderate Accident

I-80 E 15 hours, 6 minutes ago

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

Moderate Accident

I-80 W 17 hours, 36 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 18 hours, 6 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 18 hours, 6 minutes ago

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

Moderate Accident

CA-242 S 18 hours, 6 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 18 hours, 21 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 1 day, 6 hours 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 1 day, 6 hours ago

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

Moderate Accident

I-680 S 1 day, 9 hours 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 1 day, 10 hours 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, 18 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, 20 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 2 days, 4 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 2 days, 5 hours ago

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

Moderate Accident

I-80 W 2 days, 5 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 2 days, 6 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 2 days, 6 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 2 days, 8 hours ago

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

Moderate Accident

CA-4 W 2 days, 16 hours ago

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

Moderate Accident

I-80 W 2 days, 16 hours ago

CHP : Traffic Collision on CA-4 Eastbound at Port Chicago Hwy (Concord). Right shoulder affected. Expect delays.

Moderate Accident

CA-4 E 2 days, 17 hours ago

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

Moderate Accident

I-80 W 2 days, 18 hours ago

CHP : Traffic Hazard on I-680 Southbound north of Chilpancingo Pky (Pleasant Hill). Left and center lanes affected. Expect delays.

Moderate Accident

I-680 S 2 days, 19 hours ago

CHP : Fire on CA-4 Eastbound west of Port Chicago Hwy (Concord). Lane affected. Expect delays.

Moderate Accident

CA-4 E 2 days, 21 hours ago

CHP : Traffic Hazard on CA-24 Eastbound at Caldecott Tunnel Split (Orinda). Left lane blocked. Expect delays.

Moderate Accident

CA-24 E 2 days, 21 hours ago

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

Moderate Accident

CA-4 E 3 days, 3 hours ago

CHP : Disabled vehicle on CA-24 Eastbound east of Happy Valley Rd (Lafayette). Lane affected. Expect delays.

Moderate Accident

CA-24 E 3 days, 3 hours ago

CHP : Traffic Hazard on I-680 Southbound north of Olympic Blvd (Walnut Creek). 3rd lane from the left affected. Expect delays.

Moderate Accident

I-680 S 3 days, 4 hours ago

CHP : Traffic Hazard on CA-24 Eastbound west of Fish Ranch Rd (Orinda). Left lanes affected. Expect delays.

Moderate Accident

CA-24 E 3 days, 4 hours ago

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

Moderate Accident

CA-24 W 3 days, 4 hours ago

CHP : Traffic Collision on CA-4 Westbound at Willow Pass Rd (Concord). Lane affected. Expect delays.

Moderate Accident

CA-4 W 3 days, 7 hours ago

CHP : Disabled vehicle on I-80 Westbound east of Cummings Skwy (Crockett). 2nd lane from the left affected. Expect delays.

Moderate Accident

I-80 W 3 days, 14 hours ago

CHP : Disabled vehicle on I-80 Eastbound at Appian Way (Pinole). Right lane blocked. Expect delays.

Moderate Accident

I-80 E 3 days, 16 hours ago

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

Moderate Accident

CA-24 E 3 days, 18 hours ago

CHP : Disabled vehicle on CA-24 Eastbound west of Caldecott Tunnel (Orinda). Left lane blocked. Expect delays.

Moderate Accident

CA-24 E 3 days, 20 hours ago

CHP : Traffic Hazard on CA-4 Westbound east of Willow Pass Rd (Concord). Right lane affected. Expect delays.

Moderate Accident

CA-4 W 4 days, 4 hours ago

CHP : Traffic Hazard on I-680 Northbound entering at Sycamore Valley Rd (Danville). Lane affected. Expect delays.

Moderate Accident

I-680 N 4 days, 5 hours ago

CHP : Traffic Collision on I-580 Westbound at Erlandson St (Richmond). Lane affected. Expect delays.

Moderate Accident

I-580 W 4 days, 6 hours ago

CHP : Traffic Collision on I-80 Westbound east of Appian Way (Pinole). Left lane blocked. Expect delays.

Moderate Accident

I-80 W 4 days, 7 hours ago

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

Moderate Accident

CA-4 W 4 days, 8 hours ago

CHP : Traffic Collision on CA-4 Eastbound at G St (Antioch). Lane affected. Expect delays.

Moderate Accident

CA-4 E 4 days, 12 hours ago

CHP : Traffic Collision with Injuries on CA-4 Westbound west of Alhambra Ave (Martinez). Lane affected. Expect delays.

Moderate Accident

CA-4 W 4 days, 14 hours ago

CHP : Disabled vehicle on CA-242 Northbound north of Grant St (Concord). Right lane blocked. Expect delays.

Moderate Accident

CA-242 N 4 days, 16 hours ago

CHP : Disabled vehicle on CA-4 Westbound east of I-680 N (Martinez). Lane affected. Expect delays.

Moderate Accident

CA-4 W 4 days, 17 hours ago

CHP : Disabled vehicle on CA-24 Eastbound west of Camino Pablo (Orinda). Lane affected. Expect delays.

Moderate Accident

CA-24 E 4 days, 19 hours ago

CHP : Traffic Collision on I-580 Westbound west of Harbour Way S (Richmond). Left lane blocked. Expect delays.

Moderate Accident

I-580 W 4 days, 23 hours ago