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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, 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: 57 accident.

57

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

0

Today

Reported since midnight

Today's Accidents Today's Fatalities

showing most recent 57 incidents with location data · click a marker to view details

Crash Records

Contra Costa Incidents 57 results

57 accident

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, 5 hours ago

CHP : Traffic Collision on I-680 Southbound north of N Main St (Walnut Creek). Right shoulder affected. Expect delays.

I-680 S 5 days, 11 hours ago

CHP : Traffic Collision on I-680 Southbound north of N Main St (Walnut Creek). Right shoulder affected. Expect delays.

I-680 S 5 days, 13 hours ago

CHP : Traffic Collision on I-680 Northbound north of N Main St (Walnut Creek). Right shoulder affected. Expect delays.

I-680 N 5 days, 14 hours ago

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

I-680 N 5 days, 21 hours ago

CHP : Fire on CA-4 Westbound east of CA-242 N (Concord). Center Divider affected. Expect delays.

CA-4 W 1 week, 1 day ago

CHP : Traffic Collision on I-680 Southbound south of Monument Blvd (Pleasant Hill). 2nd lane from the left affected. Expect delays.

I-680 S 1 week, 2 days ago

CHP : Residual delays on CA-24 Eastbound west of Pleasant Hill Rd (Lafayette). Center Divider affected. Expect delays.

CA-24 E 1 week, 2 days ago

CHP : Traffic Collision on I-680 Northbound exiting at Oak Park Blvd (Pleasant Hill). Left lane closed. Expect delays.

I-680 N 1 week, 4 days ago

CHP : Traffic Collision on CA-4 Westbound east of Center Ave (Martinez). Center Divider affected. Expect delays.

CA-4 W 1 week, 5 days ago

CHP : Residual delays on CA-4 Eastbound west of Hillcrest Ave (Antioch). Center Divider affected. Expect delays.

CA-4 E 2 weeks ago

CHP : Residual delays on CA-4 Eastbound west of Cummings Skwy (Port Costa). Center Divider affected. Expect delays.

CA-4 E 2 weeks, 3 days ago

CHP : Residual delays on CA-242 Northbound south of Olivera Rd (Concord). Center Divider affected. Expect delays.

CA-242 N 2 weeks, 3 days ago

CHP : Traffic Collision on I-680 Northbound north of N Main St (Walnut Creek). Right shoulder affected. Expect delays.

I-680 N 2 weeks, 4 days ago

CHP : Traffic Collision with Injuries on CA-160 Southbound south of Main St (Antioch). Center Divider affected. Expect delays.

CA-160 S 2 weeks, 5 days ago

CHP : Traffic Hazard on I-680 Northbound south of Bollinger Canyon Rd (San Ramon). Center Divider affected. Expect delays.

I-680 N 2 weeks, 5 days ago

CHP : Traffic Hazard on I-580 Westbound east of Harbour Way S (Richmond). Center Divider affected. Expect delays.

I-580 W 2 weeks, 5 days ago

CHP : Traffic Collision on I-680 Northbound south of Treat Blvd (Walnut Creek). Right lane blocked. Expect delays.

I-680 N 3 weeks ago

CHP : Residual delays on CA-242 Northbound south of Grant St (Concord). Center Divider affected. Expect delays.

CA-242 N 3 weeks, 3 days ago

CHP : Traffic Collision on I-680 Northbound at Oak Park Blvd (Pleasant Hill). Lane affected. Expect delays.

I-680 N 3 weeks, 3 days ago

CHP : Traffic Hazard on CA-4 Eastbound west of Sand Creek Rd (Brentwood). Center Divider blocked. Expect delays.

CA-4 E 3 weeks, 5 days ago

CHP : Disabled vehicle on CA-4 Eastbound east of Port Chicago Hwy (Concord). Center Divider affected. Expect delays.

CA-4 E 3 weeks, 5 days ago

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

CA-24 W 4 weeks ago

CHP : Traffic Hazard on CA-4 Westbound east of CA-242 N (Concord). Center Divider affected. Expect delays.

CA-4 W 4 weeks ago

CHP : Residual delays on CA-4 Westbound east of Willow Pass Rd (Concord). Center Divider affected. Expect delays.

CA-4 W 4 weeks, 1 day ago

CHP : Residual delays on I-80 Eastbound west of Appian Way (Pinole). Center Divider affected. Expect delays.

I-80 E 1 month ago

CHP : Disabled vehicle on CA-4 Eastbound west of Hillcrest Ave (Antioch). Center Divider affected. Expect delays.

CA-4 E 1 month ago

CHP : Traffic Hazard on CA-4 Eastbound west of Hillcrest Ave (Antioch). Center Divider affected. Expect delays.

CA-4 E 1 month ago

CHP : Traffic Collision on I-680 Southbound north of Monument Blvd (Pleasant Hill). HOV blocked. Expect delays.

I-680 S 1 month, 1 week ago

CHP : Residual delays on CA-24 Eastbound west of Camino Pablo (Orinda). Center Divider affected. Expect delays.

CA-24 E 1 month, 1 week ago

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

CA-24 E 1 month, 1 week ago

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

CA-4 W 1 month, 1 week ago

CHP : Traffic Hazard on I-680 Northbound north of Ygnacio Valley Rd (Walnut Creek). Center Divider blocked. Expect delays.

I-680 N 1 month, 1 week ago

CHP : Traffic Collision on CA-24 Eastbound east of Pleasant Hill Rd (Lafayette). Right shoulder closed. Expect delays.

CA-24 E 1 month, 1 week ago

CHP : Residual delays on CA-4 Westbound west of Bailey Rd (Pittsburg). Center Divider affected. Expect delays.

CA-4 W 1 month, 1 week ago

CHP : Traffic Collision on CA-24 Eastbound east of Pleasant Hill Rd (Lafayette). Lane blocked. Expect delays.

CA-24 E 1 month, 1 week ago

CHP : Traffic Collision on I-680 Southbound north of Monument Blvd (Pleasant Hill). Left lane blocked. Expect delays.

I-680 S 1 month, 1 week ago

CHP : Traffic Collision on CA-4 Westbound between Loveridge Rd (Pittsburg) and Somersville Rd (Antioch). All lanes blocked. Avoid the area.

CA-4 W 1 month, 1 week ago

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

I-680 S 1 month, 2 weeks ago

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

I-680 S 1 month, 2 weeks ago

CHP : Traffic Collision on CA-24 Eastbound west of ST Stephens Dr (Orinda). Center Divider affected. Expect delays.

CA-24 E 1 month, 2 weeks ago

CHP : Residual delays on I-680 Southbound north of N Main St (Walnut Creek). Center Divider affected. Expect delays.

I-680 S 1 month, 2 weeks ago

CHP : Traffic Collision on CA-24 Westbound west of Acalanes Rd (Lafayette). Center Divider affected. Expect delays.

CA-24 W 1 month, 2 weeks ago

CHP : Traffic Hazard on CA-4 Westbound at Arnold Industrial Way (Concord). Center Divider affected. Expect delays.

CA-4 W 1 month, 2 weeks ago

CHP : Disabled vehicle on CA-24 Westbound at Pleasant Hill Rd (Lafayette). Center Divider affected. Expect delays.

CA-24 W 1 month, 2 weeks ago

CHP : Traffic Hazard on I-80 Eastbound west of Central Ave (Richmond). Center Divider blocked. Expect delays.

I-80 E 1 month, 2 weeks ago

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

I-680 N 1 month, 2 weeks ago

CHP : Traffic Collision on I-680 Southbound at Olympic Blvd (Walnut Creek). Right lane blocked. Expect delays.

I-680 S 1 month, 2 weeks ago

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

I-680 N 1 month, 2 weeks ago

CHP : Traffic Collision with Injuries on I-680 Southbound south of CA-24 E-I-680 S Ramp (Walnut Creek). Center Divider affected. Expect delays.

I-680 S 1 month, 2 weeks ago