CA · Highway

CA-1 S Accidents & Crashes

CA-1 S has recorded 368 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 San Mateo and Santa Cruz.

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 Aug. 1, 2026.

Breakdown by type: 27 construction, 2 accident.

29

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 29 results

27 construction 2 accident

CHP : Residual delays on CA-1 Northbound and Southbound south of Stewarts Point Skaggs Springs Rd (Unincorporated). All lanes open. Expect delays.

Sonoma 13 hours, 49 minutes ago

Caltrans : Roadwork on CA-1 Southbound at Swanton Rd (Unincorporated). Lane closed. Expect delays. From 10:15 AM Friday, July 31, 2026 to 5:00 PM Friday, July 31, 2026.

San Mateo 1 day, 18 hours ago

Caltrans : Roadwork on CA-1 Northbound and Southbound at Panoramic Hwy (Unincorporated). Lane closed. One way traffic control in effect. From 9:00 AM Friday, July 31, 2026 to 3:00 PM Friday, July 31, 2026.

Marin 2 days ago

Caltrans : Roadwork on CA-1 Southbound at Swanton Rd (Unincorporated). Lane closed. One way traffic control in effect. From 7:00 AM Friday, July 31, 2026 to 5:00 PM Friday, July 31, 2026.

San Mateo 2 days, 3 hours ago

Caltrans : Roadwork on CA-1 Northbound and Southbound at Swanton Rd (Unincorporated). Lane closed. One way traffic control in effect. From 7:00 AM Thursday, July 30, 2026 to 5:00 PM Thursday, July 30, 2026.

San Mateo 2 days, 18 hours ago

CHP : Traffic Collision on CA-1 Southbound north of CA-17 N (Santa Cruz). Right shoulder affected. Expect delays.

Moderate Accident

Santa Cruz 3 days, 1 hour ago

Caltrans : Roadwork on CA-1 Southbound at Higgins Canyon Rd (Half Moon Bay). Lane closed until 7 AM. From 6:00 PM Wednesday, July 29, 2026 to 7:00 AM Thursday, July 30, 2026.

San Mateo 3 days, 4 hours ago

Caltrans : Roadwork on CA-1 Southbound at Capistrano Rd (El Granada). Lane closed until 7 AM. From 7:00 PM Wednesday, July 29, 2026 to 7:00 AM Thursday, July 30, 2026.

San Mateo 3 days, 4 hours ago

Caltrans : Roadwork on CA-1 Southbound at CA-92 E (Half Moon Bay). Lane closed until 6 AM. From 10:00 PM Wednesday, July 29, 2026 to 6:00 AM Thursday, July 30, 2026.

San Mateo 3 days, 5 hours ago

Caltrans : Roadwork on CA-1 Southbound at CA-92 E (Half Moon Bay). Lane closed until 6 AM. From 10:00 PM Wednesday, July 29, 2026 to 6:00 AM Thursday, July 30, 2026.

San Mateo 3 days, 5 hours ago

Caltrans : Roadwork on CA-1 Southbound at Higgins Canyon Rd (Half Moon Bay). Lane closed until 6 AM. From 10:00 PM Wednesday, July 29, 2026 to 6:00 AM Thursday, July 30, 2026.

San Mateo 3 days, 5 hours ago

Caltrans : Roadwork on CA-1 Southbound at Capistrano Rd (El Granada). Lane closed until 6 AM. From 10:00 PM Wednesday, July 29, 2026 to 6:00 AM Thursday, July 30, 2026.

San Mateo 3 days, 6 hours ago

Caltrans : Emergency construction on CA-1 Southbound between US-101 S (san Francisco) (San Francisco) and Geary Blvd (San Francisco). Various lanes closed until 6 AM. From 9:00 PM Wednesday, July 29, 2026 to 6:00 AM Thursday, July 30, 2026.

San Francisco 3 days, 6 hours ago

Caltrans : Roadwork on CA-1 Northbound and Southbound at Swanton Rd (Unincorporated). Lane closed. One way traffic control in effect. From 7:00 AM Wednesday, July 29, 2026 to 5:00 PM Wednesday, July 29, 2026.

San Mateo 3 days, 18 hours ago

Caltrans : Roadwork on CA-1 Southbound at Capistrano Rd (El Granada). Lane closed until 7 AM. From 7:00 PM Tuesday, July 28, 2026 to 7:00 AM Wednesday, July 29, 2026.

San Mateo 4 days, 5 hours ago

Caltrans : Roadwork on CA-1 Southbound at Higgins Canyon Rd (Half Moon Bay). Lane closed until 7 AM. From 6:00 PM Tuesday, July 28, 2026 to 7:00 AM Wednesday, July 29, 2026.

San Mateo 4 days, 5 hours ago

Caltrans : Roadwork on CA-1 Southbound at Higgins Canyon Rd (Half Moon Bay). Lane closed until 6 AM. From 10:00 PM Tuesday, July 28, 2026 to 6:00 AM Wednesday, July 29, 2026.

San Mateo 4 days, 5 hours ago

Caltrans : Roadwork on CA-1 Southbound at CA-92 E (Half Moon Bay). Lane closed until 6 AM. From 10:00 PM Tuesday, July 28, 2026 to 6:00 AM Wednesday, July 29, 2026.

San Mateo 4 days, 5 hours ago

Caltrans : Roadwork on CA-1 Southbound at CA-92 E (Half Moon Bay). Lane closed until 6 AM. From 10:00 PM Tuesday, July 28, 2026 to 6:00 AM Wednesday, July 29, 2026.

San Mateo 4 days, 5 hours ago

Caltrans : Roadwork on CA-1 Southbound at Capistrano Rd (El Granada). Lane closed until 6 AM. From 10:00 PM Tuesday, July 28, 2026 to 6:00 AM Wednesday, July 29, 2026.

San Mateo 4 days, 5 hours ago

Caltrans : Roadwork on CA-1 Southbound at CA-92 E (Half Moon Bay). Lane closed until 6 AM. From 10:00 PM Tuesday, July 28, 2026 to 6:00 AM Wednesday, July 29, 2026.

San Mateo 4 days, 5 hours ago

Caltrans : Roadwork on CA-1 Southbound at Bonny Doon Rd (Unincorporated). Lane closed. One way traffic control in effect. From 7:00 AM Tuesday, July 28, 2026 to 5:00 PM Tuesday, July 28, 2026.

San Mateo 4 days, 18 hours ago

Caltrans : Roadwork on CA-1 Southbound at Capistrano Rd (El Granada). Lane closed until 7 AM. From 7:00 PM Monday, July 27, 2026 to 7:00 AM Tuesday, July 28, 2026.

San Mateo 5 days, 5 hours ago

Caltrans : Roadwork on CA-1 Southbound at Higgins Canyon Rd (Half Moon Bay). Lane closed until 7 AM. From 6:00 PM Monday, July 27, 2026 to 7:00 AM Tuesday, July 28, 2026.

San Mateo 5 days, 5 hours ago

Caltrans : Roadwork on CA-1 Southbound at Higgins Canyon Rd (Half Moon Bay). Lane closed until 6 AM. From 10:00 PM Monday, July 27, 2026 to 6:00 AM Tuesday, July 28, 2026.

San Mateo 5 days, 6 hours ago

Caltrans : Roadwork on CA-1 Southbound at CA-92 E (Half Moon Bay). Lane closed until 6 AM. From 10:00 PM Monday, July 27, 2026 to 6:00 AM Tuesday, July 28, 2026.

San Mateo 5 days, 6 hours ago

Caltrans : Roadwork on CA-1 Southbound at CA-92 E (Half Moon Bay). Lane closed until 6 AM. From 10:00 PM Monday, July 27, 2026 to 6:00 AM Tuesday, July 28, 2026.

San Mateo 5 days, 6 hours ago

Caltrans : Roadwork on CA-1 Southbound at Capistrano Rd (El Granada). Lane closed until 6 AM. From 10:00 PM Monday, July 27, 2026 to 6:00 AM Tuesday, July 28, 2026.

San Mateo 5 days, 7 hours ago

Caltrans : Roadwork on CA-1 Southbound at Swanton Rd (Unincorporated). Lane closed. One way traffic control in effect. From 7:00 AM Monday, July 27, 2026 to 5:00 PM Monday, July 27, 2026.

San Mateo 6 days, 1 hour ago