CA · Highway

CA-1 S Accidents & Crashes

CA-1 S has recorded 649 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 San Mateo and Marin.

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 Nov. 1, 2026.

Breakdown by type: 5 accident, 5 construction.

10

Total Crashes

Filtered results

0

Fatalities

Fatal injury reports

0

Today

Reported since midnight

Today's Accidents Today's Fatalities

Crash locations on CA-1 S. Click a marker to view details.

Crash Records

CA-1 S Incidents 10 results

5 accident 5 construction

CHP : Residual delays on CA-1 Northbound and Southbound north of Almonte Blvd (Unincorporated). All lanes open. Avoid the area.

Marin 7 hours, 42 minutes ago

CHP : Traffic Hazard on CA-1 Southbound ramp to I-280 S (Daly City). Connector ramp blocked. Expect delays.

San Mateo 1 day, 3 hours ago

CHP : Disabled vehicle on CA-1 Southbound south of Linda Mar Blvd (Pacifica). Lane blocked. Expect delays.

San Mateo 1 day, 10 hours ago

Caltrans : Roadwork on CA-1 Southbound at CA-84 (San Gregorio). Lane closed. One way traffic control in effect. From 9:00 PM Thursday, October 29, 2026 to 4:00 AM Friday, October 30, 2026.

San Mateo 2 days, 22 hours ago

CHP : Disabled vehicle on CA-1 Southbound north of Serramonte Blvd (Daly City). Lane blocked. Expect delays.

Moderate Accident

San Mateo 2 days, 23 hours ago

Caltrans : Emergency construction on CA-1 Southbound at Santa Cruz County Line (Unincorporated). Lane closed. One way traffic control in effect. From 7:00 AM Thursday, October 29, 2026 to 4:00 PM Thursday, October 29, 2026.

San Mateo 3 days, 5 hours ago

Caltrans : Emergency construction on CA-1 Southbound at Santa Cruz County Line (Unincorporated). Lane closed. One way traffic control in effect. From 7:00 AM Wednesday, October 28, 2026 to 4:00 PM Wednesday, October 28, 2026.

San Mateo 4 days, 5 hours ago

Caltrans : Emergency construction on CA-1 Southbound at Santa Cruz County Line (Unincorporated). Lane closed. One way traffic control in effect. From 7:00 AM Tuesday, October 27, 2026 to 4:00 PM Tuesday, October 27, 2026.

San Mateo 5 days, 9 hours ago

Caltrans : Emergency construction on CA-1 Southbound at Santa Cruz County Line (Unincorporated). Lane closed. One way traffic control in effect. From 7:00 AM Monday, October 26, 2026 to 4:00 PM Monday, October 26, 2026.

San Mateo 6 days, 9 hours ago

CHP : Residual delays on CA-1 Southbound at CA-17 N (Santa Cruz). Right shoulder affected. Expect delays.

Moderate Accident

Santa Cruz 6 days, 15 hours ago