CA · Highway

CA-84 E Accidents & Crashes

CA-84 E has recorded 195 traffic crashes in California since 2024, with no fatalities on record. In the last 24 hours, 0 new crashes 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 Oct. 24, 2026.

Breakdown by type: 170 accident, 25 construction.

195

Total Crashes

All time records

0

Fatalities

Fatal injury reports

0

Today

Reported since midnight

Today's Accidents Today's Fatalities

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

Crash Records

CA-84 E Incidents

170 accident 25 construction

CHP : Traffic Collision on CA-84 Eastbound east of University Ave (Menlo Park). On Ramp affected. Expect delays.

San Mateo 2 days, 9 hours ago

CHP : Traffic Collision with Injuries on CA-84 Eastbound and Westbound at CA-1 (San Gregorio). Lane affected. Expect delays.

Moderate Accident

San Mateo 2 days, 12 hours ago

CHP : Traffic Hazard on CA-84 Eastbound west of Thornton Ave (Newark). Right lane affected. Expect delays.

Moderate Accident

Alameda 3 days, 18 hours ago

CHP : Traffic Collision on CA-84 Eastbound east of Thornton Ave (Newark). Lane blocked. Expect delays.

Moderate Accident

Alameda 3 days, 21 hours ago

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

Alameda 5 days, 8 hours ago

CHP : Disabled vehicle on CA-84 Eastbound at Dumbarton Bridge - Causeway (Fremont). Lane affected. Expect delays.

Alameda 5 days, 9 hours ago

CHP : Traffic Hazard on CA-84 Eastbound west of Middlefield Rd (Redwood City). Left lane blocked. Expect delays.

Moderate Accident

San Mateo 1 week, 1 day ago

CHP : Traffic Collision with Injuries on CA-84 Eastbound and Westbound east of CA-1 (San Gregorio). Right shoulder affected. Expect delays.

Moderate Accident

San Mateo 1 week, 2 days ago

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

Alameda 1 week, 2 days ago

CHP : Traffic Collision on CA-84 Eastbound and Westbound west of I-280 S (Woodside). All lanes blocked. Avoid the area.

San Mateo 1 week, 2 days ago

CHP : Residual delays on CA-84 Eastbound west of I-880 S (Fremont). All lanes open. Expect delays.

Alameda 1 week, 3 days ago

CHP : Traffic Hazard on CA-84 Eastbound east of Little Valley Rd (Sunol). Lanes blocked. Expect delays.

Alameda 1 week, 3 days ago

CHP : Disabled vehicle on CA-84 Eastbound west of Dumbarton Bridge - Midspan (Fremont). Right lane blocked. Expect delays.

Alameda 1 week, 3 days ago

Caltrans : Long-term construction on CA-84 Eastbound west of Pescadero Creek Rd (Pescadero). Right lane blocked. Expect delays. From 7:00 AM Sunday, August 30, 2026 to 12:00 AM Friday, October 16, 2026.

San Mateo 1 week, 4 days ago

CHP : Traffic Hazard on CA-84 Eastbound west of I-880 N (Fremont). Right lane affected. Expect delays.

Moderate Accident

Alameda 1 week, 6 days ago

CHP : Disabled vehicle on CA-84 Eastbound west of Pleasanton Sunol Rd (Scotts Corner). Lanes blocked. Expect delays.

Alameda 2 weeks, 1 day ago

CHP : Fire on CA-84 Eastbound at Palomares Rd (Fremont). Lane affected. Expect delays.

Moderate Accident

Alameda 2 weeks, 1 day ago

CHP : Disabled vehicle on CA-84 Eastbound west of Thornton Ave (Newark). Lane affected. Expect delays.

Moderate Accident

Alameda 2 weeks, 1 day ago

Caltrans : Roadwork on CA-84 Eastbound at Vallecitos Ln (Sunol). All lanes closed until 10 AM. From 8:00 PM Saturday, October 10, 2026 to 10:00 AM Sunday, October 11, 2026.

Alameda 2 weeks, 1 day ago

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

Alameda 2 weeks, 3 days ago

CHP : Traffic Hazard on CA-84 Eastbound and Westbound at CA-1 (San Gregorio). Lane affected. Expect delays.

Moderate Accident

San Mateo 2 weeks, 4 days ago

Caltrans : Roadwork on CA-84 Eastbound at Vallecitos Ln (Sunol). Lane closed. One way traffic control in effect. From 9:00 AM Wednesday, October 07, 2026 to 1:00 PM Wednesday, October 07, 2026.

Alameda 2 weeks, 5 days ago

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

Alameda 2 weeks, 5 days ago

CHP : Traffic Collision on CA-84 Eastbound west of Little Valley Rd (Sunol). Right shoulder open. Expect delays.

Alameda 3 weeks, 2 days ago

Caltrans : Roadwork on CA-84 Eastbound at Vallecitos Ln (Sunol). Lane closed. One way traffic control in effect. From 7:00 AM Saturday, October 03, 2026 to 4:00 PM Saturday, October 03, 2026.

Alameda 3 weeks, 2 days ago

CHP : Traffic Collision with Injuries on CA-84 Eastbound west of Kilkare Rd (Sunol). Lane blocked. Expect delays.

Alameda 3 weeks, 3 days ago

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

Alameda 3 weeks, 3 days ago

CHP : Severe traffic alert and Traffic Collision with Injuries on CA-84 Eastbound west of Newark Blvd (Newark). Right lane blocked. Expect delays.

Alameda 3 weeks, 4 days ago

CHP : Disabled vehicle on CA-84 Eastbound west of Dumbarton Bridge - Midspan (Fremont). Right lane blocked. Expect delays.

Alameda 3 weeks, 4 days ago

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

Alameda 3 weeks, 6 days ago

CHP : Traffic Hazard on CA-84 Eastbound west of Vallecitos Ln (Sunol). Right lane blocked. Expect delays.

Moderate Accident

Alameda 4 weeks ago

Caltrans : Roadwork on CA-84 Eastbound and Westbound at CA-1 (San Gregorio). Lane closed. One way traffic control in effect. From 10:00 PM Sunday, September 27, 2026 to 5:00 AM Monday, September 28, 2026.

San Mateo 4 weeks, 1 day ago

Caltrans : Roadwork on CA-84 Eastbound at Vallecitos Ln (Sunol). All lanes closed until 8 AM. From 6:00 PM Saturday, September 26, 2026 to 8:00 AM Sunday, September 27, 2026.

Alameda 1 month ago

Caltrans : Bridge work on CA-84 Eastbound at Little Valley Rd (Sunol). All lanes closed until 8 AM. From 7:00 PM Saturday, September 26, 2026 to 8:00 AM Sunday, September 27, 2026.

Alameda 1 month ago

CHP : Traffic Hazard on CA-84 Eastbound east of Vallecitos Rd (Livermore). Right lane affected. Expect delays.

Moderate Accident

Alameda 1 month ago

CHP : Traffic Hazard on CA-84 Eastbound west of Thornton Ave (Newark). Left lane blocked. Expect delays.

Moderate Accident

Alameda 1 month ago

CHP : Disabled vehicle and Traffic Hazard on CA-84 Eastbound west of Thornton Ave (Newark). Lanes blocked. Expect delays.

Moderate Accident

Alameda 1 month ago

CHP : Traffic Hazard on CA-84 Eastbound and Westbound north of CA-1 (San Gregorio). Lane affected. Expect delays.

Moderate Accident

San Mateo 1 month, 1 week ago

CHP : Residual delays on CA-84 Eastbound west of I-880 N (Fremont). All lanes open. Expect delays.

Alameda 1 month, 1 week ago

CHP : Disabled tractor trailer on CA-84 Eastbound at I-680 S (Sunol). 2nd lane from the left affected. Expect delays.

Moderate Accident

Alameda 1 month, 1 week ago

CHP : Traffic Collision on CA-84 Eastbound east of University Ave (Menlo Park). Lane affected. Expect delays.

San Mateo 1 month, 1 week ago

CHP : Traffic Collision with Injuries and Overturned vehicle on CA-84 Eastbound ramp to I-280 N (Woodside). Connector ramp affected. Expect delays.

San Mateo 1 month, 1 week ago

CHP : Traffic Hazard on CA-84 Eastbound exiting at Newark Blvd (Newark). Off Ramp affected. Expect delays.

Alameda 1 month, 1 week ago

CHP : Traffic Collision on CA-84 Eastbound west of Vallecitos Rd (Livermore). Lane affected. Expect delays.

Moderate Accident

Alameda 1 month, 2 weeks ago

CHP : Severe traffic alert and Traffic Collision with Injuries on CA-84 Eastbound and Westbound west of Pescadero Creek Rd (Pescadero). One way traffic control is in effect. Expect delays.

San Mateo 1 month, 2 weeks ago

Caltrans : Roadwork on CA-84 Eastbound at Vallecitos Ln (Sunol). Lane closed. One way traffic control in effect. From 9:00 AM Friday, September 11, 2026 to 1:00 PM Friday, September 11, 2026.

Alameda 1 month, 2 weeks ago

CHP : Traffic Hazard on CA-84 Eastbound north of Palomares Rd (Fremont). Lanes blocked. Expect delays.

Alameda 1 month, 2 weeks ago

CHP : Vehicle fire on CA-84 Eastbound at Kilkare Rd (Sunol). Lanes blocked. Expect delays.

Alameda 1 month, 2 weeks ago

CHP : Residual delays on CA-84 Eastbound west of Kilkare Rd (Sunol). All lanes open. Expect delays.

Alameda 1 month, 2 weeks ago

CHP : Disabled vehicle on CA-84 Eastbound west of Vallecitos Rd (Livermore). Center Divider affected. Expect delays.

Alameda 1 month, 2 weeks ago