CA · County

Contra Costa Car Accidents & Crashes

Contra Costa County has recorded 3,201 traffic crashes since 2024, with no fatalities on record. In the last 24 hours, 17 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 30, 2026.

Breakdown by type: 21 accident.

21

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

0

Today

Reported since midnight

Today's Accidents Today's Fatalities

showing most recent 21 incidents with location data · click a marker to view details

Crash Records

Contra Costa Incidents 21 results

21 accident

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

CA-24 E 1 day, 21 hours ago

CHP : Residual delays on CA-4 Westbound at L St (Antioch). Center Divider affected. Expect delays.

CA-4 W 2 days, 20 hours ago

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

CA-24 W 3 days, 20 hours ago

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

I-680 S 4 days, 15 hours ago

CHP : Traffic Collision on CA-24 Eastbound west of Pleasant Hill Rd (Lafayette). 3rd lane from the left blocked. Expect delays.

CA-24 E 1 week, 1 day ago

CHP : Brush fire on I-80 Westbound at San Pablo Dam Rd (San Pablo). Center Divider affected. Expect delays.

I-80 W 1 week, 3 days ago

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

CA-4 E 2 weeks, 1 day ago

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

I-680 N 2 weeks, 1 day ago

CHP : Disabled truck on I-680 Northbound south of N Main St (Walnut Creek). 2nd lane from the left blocked. Expect delays.

I-680 N 2 weeks, 1 day ago

CHP : Traffic Collision on I-680 Southbound north of Geary Rd (Walnut Creek). Lane affected. Expect delays.

I-680 S 2 weeks, 2 days ago

CHP : Traffic Collision on I-680 Southbound south of Geary Rd (Walnut Creek). Lane affected. Expect delays.

I-680 S 2 weeks, 2 days ago

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

CA-4 E 2 weeks, 4 days ago

CHP : Traffic Collision on I-680 Southbound south of CA-4 E (Martinez). Center Divider affected. Expect delays.

I-680 S 2 weeks, 4 days ago

CHP : Traffic Collision with Injuries on CA-4 Westbound east of Port Chicago Hwy (Concord). Center Divider affected. Expect delays.

CA-4 W 2 weeks, 4 days ago

CHP : Traffic Collision on CA-24 Eastbound east of Pleasant Hill Rd (Lafayette). 3rd lane from the left blocked. Expect delays.

CA-24 E 2 weeks, 6 days ago

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

CA-4 W 3 weeks, 3 days ago

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

CA-4 E 3 weeks, 5 days ago

CHP : Disabled vehicle on CA-4 Eastbound west of Loveridge Rd (Pittsburg). Center Divider affected. Expect delays.

CA-4 E 3 weeks, 6 days ago

CHP : Residual delays on I-680 Northbound south of Willow Pass Rd (Concord). Center Divider affected. Expect delays.

I-680 N 3 weeks, 6 days ago

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

CA-242 N 4 weeks ago

CHP : Traffic Collision on Ygnacio Valley Rd Eastbound east of Civic Dr (Walnut Creek). All lanes blocked. Avoid the area.

Ygnacio Valley Rd 4 weeks, 1 day ago