CA · Highway

CA-84 W Accidents & Crashes

CA-84 W has recorded 111 traffic crashes in California since 2024, with no fatalities on record. In the last 24 hours, 1 new crash were reported. The highest crash volumes are concentrated near Alameda and San Mateo.

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. Records include crash severity, injury data, vehicle information, and precise geographic coordinates. Last updated July 28, 2026.

Breakdown by type: 12 accident, 1 construction.

13

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

1

Today

Reported since midnight

Today's Accidents Today's Fatalities

Crash locations on CA-84 W. Click a marker to view details.

Crash Records

CA-84 W Incidents 13 results

12 accident 1 construction

CHP : Traffic Hazard on CA-84 Westbound east of Ardenwood Blvd (Newark). Lane affected. Expect delays.

Moderate Accident

Alameda 17 hours, 43 minutes ago

CHP : Disabled vehicle on CA-84 Westbound at Dumbarton Bridge - Midspan (Fremont). Left lane blocked. Expect delays.

Alameda 1 day, 2 hours ago

CHP : Disabled vehicle on CA-84 Westbound east of Dumbarton Bridge - Toll Plaza (Fremont). Right shoulder affected. Expect delays.

San Mateo 3 days, 18 hours ago

CHP : Disabled vehicle on CA-84 Westbound at Dumbarton Bridge - Midspan (Fremont). Right lane affected. Expect delays.

Alameda 4 days, 8 hours ago

CHP : High winds on CA-84 Eastbound and Westbound between Dumbarton Bridge - Toll Plaza (Fremont) and University Ave (Menlo Park). Lanes affected. Traffic advisory in effect.

Alameda 5 days, 2 hours ago

Caltrans : Roadwork on CA-84 Westbound at Paseo Padre Pky (Fremont). Lane closed until 7 AM. From 5:00 AM Friday, July 17, 2026 to 7:00 AM Friday, July 17, 2026.

Alameda 1 week, 5 days ago

CHP : Traffic Hazard on CA-84 Westbound at Dumbarton Bridge - Midspan (Fremont). Right lane blocked. Expect delays.

Alameda 1 week, 6 days ago

CHP : Traffic Hazard on CA-84 Westbound west of Dumbarton Bridge - Midspan (Fremont). Lane affected. Expect delays.

Alameda 2 weeks ago

CHP : Traffic Hazard on CA-84 Westbound east of Dumbarton Bridge - Midspan (Fremont). Lane affected. Expect delays.

Alameda 2 weeks, 1 day ago

CHP : Traffic Hazard on CA-84 Westbound at Dumbarton Bridge - Toll Plaza (Fremont). Center Divider affected. Expect delays.

Moderate Accident

San Mateo 3 weeks, 2 days ago

CHP : Traffic Hazard on CA-84 Westbound east of Dumbarton Bridge - Toll Plaza (Fremont). Right lane blocked. Expect delays.

Alameda 3 weeks, 3 days ago

CHP : Traffic Collision on CA-84 Westbound west of US-101 S (Redwood City). Right shoulder affected. Expect delays.

Moderate Accident

San Mateo 3 weeks, 5 days ago

CHP : Residual delays on CA-84 Westbound west of Dumbarton Bridge - Toll Plaza (Fremont). All lanes open. Expect delays.

Alameda 4 weeks ago