CA · Highway

CA-84 W Accidents & Crashes

CA-84 W has recorded 15 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 April 22, 2026.

Breakdown by type: 9 accident, 6 construction.

15

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 15 results

9 accident 6 construction

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

Alameda 3 hours, 56 minutes ago

CHP : Traffic Collision on CA-84 Westbound east of Ardenwood Blvd (Newark). Center Divider affected. Expect delays.

Alameda 1 day, 10 hours ago

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

Alameda 2 days, 2 hours ago

CHP : Fire on CA-84 Westbound at Dumbarton Bridge - Midspan (Fremont). Lane affected. Expect delays.

Alameda 3 days, 11 hours ago

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

Alameda 4 days, 15 hours ago

Caltrans : Roadwork on CA-84 Westbound at Paseo Padre Pky (Fremont). Lane closed until 7 AM. From 3:00 AM Friday, April 17, 2026 to 7:00 AM Friday, April 17, 2026.

Alameda 5 days, 5 hours ago

CHP : Traffic Hazard on CA-84 Westbound west of Dumbarton Bridge - Toll Plaza (Fremont). 3rd lane from the left affected. Expect delays.

Alameda 6 days, 3 hours ago

Caltrans : Roadwork on CA-84 Westbound at Dumbarton Bridge - Midspan (Fremont). Lane closed until 6 AM. From 3:00 AM Thursday, April 16, 2026 to 6:00 AM Thursday, April 16, 2026.

Alameda 6 days, 6 hours ago

Caltrans : Roadwork on CA-84 Westbound at Blacow Rd (Fremont). Lane closed until 6 AM. From 3:00 AM Thursday, April 16, 2026 to 6:00 AM Thursday, April 16, 2026.

Alameda 6 days, 6 hours ago

CHP : Traffic Hazard on CA-84 Westbound west of Ardenwood Blvd (Newark). Right lane affected. Expect delays.

Moderate Accident

Alameda 6 days, 16 hours ago

Caltrans : Roadwork on CA-84 Westbound at US-101 N (Menlo Park). Lane closed. From 10:00 PM Tuesday, April 14, 2026 to 6:00 AM Wednesday, April 15, 2026.

San Mateo 1 week ago

Caltrans : Roadwork on CA-84 Westbound at US-101 N (Menlo Park). Lane closed. From 10:00 PM Thursday, April 09, 2026 to 6:00 AM Friday, April 10, 2026.

San Mateo 1 week, 5 days ago

CHP : Severe traffic alert and Emergency roadwork on CA-84 Westbound east of CA-1 (San Gregorio). One way traffic control is in effect. Expect delays.

San Mateo 1 week, 5 days ago

Caltrans : Roadwork on CA-84 Westbound at El Camino Real (Redwood City). Lane closed. From 10:00 PM Wednesday, April 08, 2026 to 6:00 AM Thursday, April 09, 2026.

San Mateo 1 week, 6 days ago

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

Alameda 2 weeks, 3 days ago