Contra Costa · Last 48 Hours

Contra Costa Accidents Today

24 accidents near Contra Costa in the last 24 hours · 59 in 48 hours · updated July 28, 2026 5:00 AM PDT

24

Last 24h

59

Last 48h

7

High Severity

145

This Week

34

Accident

25

Construction

7-Day Trend

145 crashes

↓ Fewer than last week

145 crashes in the last 7 days, down 35% vs the previous week.

Last hour

2 incidents

15m ago 4:45 AM

Caltrans : Roadwork on I-580 Westbound between Bayview Ave (Richmond) and Garrard Blvd (Richmond). Various lanes closed until 6 AM. From 7:00 PM Monday, July 27, 2026 to 6:00 AM Tuesday, July 28, 2026.

45m ago 4:15 AM

Caltrans : Roadwork on I-680 Northbound exiting at Treat Blvd (Walnut Creek). Off Ramp closed until 5 AM. From 9:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

6–12 hours ago

12 incidents

6h ago 11:00 PM

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

6h ago 10:45 PM

Caltrans : Roadwork on I-580 Eastbound between Western Dr (Richmond) and Garrard Blvd (Richmond). Right lane and shoulder closed until 4 AM. From 9:00 PM Monday, July 27, 2026 to 4:00 AM Tuesday, July 28, 2026.

6h ago 10:45 PM

Caltrans : Roadwork on I-580 Eastbound exiting at Marina Bay Pky (Richmond). Off Ramp closed until 5 AM. From 9:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

6h ago 10:45 PM

Caltrans : Roadwork on I-580 Eastbound entering at Marina Bay Pky (Richmond). On Ramp closed until 5 AM. From 9:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

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

CHP : Traffic Hazard on I-580 Eastbound west of Central Ave (Richmond). Left and center lanes affected. Expect delays.

Caltrans : Roadwork on CA-4 Westbound between Lone Tree Way Bypass (Antioch) and Laurel Rd (Antioch). Various lanes closed until 5 AM. From 7:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Various lanes closed until 5 AM. From 7:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

Caltrans : Roadwork on CA-4 Westbound exiting at Lone Tree Way Bypass (Antioch). Off Ramp closed until 5 AM. From 6:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

Caltrans : Roadwork on CA-4 Westbound entering at Lone Tree Way Bypass (Antioch). On Ramp closed until 5 AM. From 6:00 PM Monday, July 27, 2026 to 5:00 AM Tuesday, July 28, 2026.

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

11h ago 5:45 PM

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

12–24 hours ago

10 incidents

12h ago 5:00 PM

CHP : Traffic Collision on CA-4 Eastbound entering at Somersville Rd (Antioch). On Ramp affected. Expect delays.

12h ago 5:00 PM

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

13h ago 3:30 PM

CHP : Disabled vehicle on I-680 Northbound north of Benicia Bridge - Toll Plaza (Martinez). Right lane blocked. Expect delays.

19h ago 9:15 AM

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

21h ago 7:45 AM

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

22h ago 7:00 AM

CHP : Traffic Collision on I-580 Westbound east of Western Dr (Richmond). Lane affected. Expect delays.

22h ago 6:45 AM

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

22h ago 6:30 AM

Caltrans : Roadwork on I-580 Eastbound at Richmond San Rafael Bridge (Richmond). Right shoulder closed until 10 AM. From 6:00 AM Monday, July 27, 2026 to 10:00 AM Monday, July 27, 2026.

22h ago 6:30 AM

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

23h ago 5:45 AM

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

24–48 hours ago

35 incidents

Caltrans : Roadwork on I-680 Southbound between Sycamore Valley Rd (Danville) and Bollinger Canyon Rd (San Ramon). Various lanes closed until 5 AM. From 8:00 PM Sunday, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

Caltrans : Roadwork on I-680 Southbound exiting at Sycamore Valley Rd (Danville). Off Ramp closed until 5 AM. From 9:00 PM Sunday, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

Caltrans : Roadwork on I-680 Southbound between Diablo Rd (Danville) and Sycamore Valley Rd (Danville). Various lanes closed until 5 AM. From 8:00 PM Sunday, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

Caltrans : Roadwork on I-680 Northbound between Bollinger Canyon Rd (San Ramon) and Sycamore Valley Rd (Danville). Various lanes closed until 5 AM. From 8:00 PM Sunday, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

Caltrans : Roadwork on I-680 Northbound exiting at Sycamore Valley Rd (Danville). Off Ramp closed until 5 AM. From 7:00 PM Sunday, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

Caltrans : Roadwork on I-680 Northbound between Sycamore Valley Rd (Danville) and Diablo Rd (Danville). Various lanes closed until 5 AM. From 8:00 PM Sunday, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

Caltrans : Roadwork on I-80 Eastbound between CA-4 E (Hercules) and San Pablo Ave (Crockett). Various lanes closed until 5 AM. From 10:00 PM Sunday, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

Caltrans : Roadwork on I-80 Eastbound entering at San Pablo Dam Rd (San Pablo). On Ramp closed until 5 AM. From 10:00 PM Sunday, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

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

1d ago 12:00 AM

Caltrans : Roadwork on I-80 Eastbound between Barrett Ave (Richmond) and Fitzgerald Dr (Pinole). Various lanes closed until 5 AM. From 10:00 PM Sunday, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

1d ago 10:30 PM

Caltrans : Roadwork on I-80 Westbound between San Pablo Ave (Crockett) and CA-4 E (Hercules). Various lanes closed until 5 AM. From 8:00 PM Sunday, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

1d ago 10:00 PM

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

Caltrans : Roadwork on CA-24 Westbound between Fish Ranch Rd (Orinda) and Caldecott Ln (Oakland). Right lane and shoulder closed until 6 AM. From 9:00 PM Sunday, July 26, 2026 to 6:00 AM Monday, July 27, 2026.

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

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

Caltrans : Roadwork on CA-4 Westbound between Sand Creek Rd (Brentwood) and Lone Tree Way Bypass (Antioch). Various lanes closed until 5 AM. From 7:00 PM Sunday, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

Caltrans : Roadwork on CA-4 Westbound between Balfour Rd (Antioch) and Sand Creek Rd (Brentwood). Various lanes closed until 5 AM. From 7:00 PM Sunday, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

Caltrans : Roadwork on CA-4 Westbound entering at Sand Creek Rd (Brentwood). On Ramp closed until 5 AM. From 6:00 PM Sunday, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

Caltrans : Roadwork on CA-4 Westbound exiting at San Jose Ave (Antioch). Off Ramp closed until 5 AM. From 6:00 PM Sunday, July 26, 2026 to 5:00 AM Monday, July 27, 2026.

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

CHP : Traffic Collision with Injuries on CA-4 Eastbound entering at Loveridge Rd (Pittsburg). On Ramp blocked. Expect delays.

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

CHP : Traffic Collision with Injuries on CA-4 Westbound east of G St (Antioch). Lanes open. Expect delays.

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

CHP : Traffic Collision on CA-4 Eastbound at Pacheco Blvd (Pacheco). Lane affected. Expect delays.

CHP : Traffic Hazard on I-680 Northbound exiting at Ygnacio Valley Rd (Walnut Creek). Off Ramp affected. Expect delays.

1d ago 12:45 PM

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

1d ago 11:30 AM

CHP : Traffic Hazard on CA-4 Westbound east of Hillcrest Ave (Antioch). 3rd lane from the left affected. Expect delays.

1d ago 11:15 AM

CHP : Traffic Hazard on I-80 Westbound east of Cummings Skwy (Crockett). Right lane blocked. Expect delays.

1d ago 10:45 AM

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

CHP : Traffic Hazard on I-580 Eastbound north of Erlandson St (Richmond). Lane affected. Expect delays.

CHP : Traffic Hazard on I-580 Eastbound west of Western Dr (Richmond). Left lane affected. Expect delays.

CHP : Fire on CA-4 Eastbound west of G St (Antioch). Right shoulder affected. Expect delays.

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

CHP : Disabled vehicle on CA-4 Westbound at Bailey Rd (Pittsburg). 2nd lane from the left affected. Expect delays.

Frequently Asked Questions

Are accidents in Contra Costa reported live?

Yes — this page refreshes throughout the day as new incidents are logged by the California Highway Patrol. Crash data typically appears within 15–30 minutes of being reported.

How many accidents happened near Contra Costa in the last 7 days?

145 crashes were reported near Contra Costa in the last 7 days.

What roads have the most crashes in Contra Costa today?

Recent crashes near Contra Costa are concentrated on: CA-4 W, I-680 N, I-580 E. See the full historical crash data for Contra Costa.

What type of accident is most common in Contra Costa?

Accident are the most frequently reported incident type near Contra Costa based on recent data.

Where does this crash data come from?

Crash data is sourced from the California Highway Patrol (CHP) Computer-Aided Dispatch feed and the CCRS historical crash database. Learn more about our data sources.