CA · Highway

CA-1 S Accidents & Crashes

CA-1 S has recorded 644 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 Oct. 29, 2026.

Breakdown by type: 24 accident.

24

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 24 results

24 accident

CHP : Traffic Collision on CA-1 Southbound north of 1st St (Montara). Lane blocked. Expect delays.

San Mateo 4 days, 19 hours ago

CHP : Traffic Hazard on CA-1 Southbound south of CA-17 N (Santa Cruz). Lanes affected. Expect delays.

Santa Cruz 1 week, 4 days ago

CHP : Disabled truck on CA-1 Southbound north of Old Devil's Slide Hwy (Pacifica). Lane blocked. Expect delays.

San Mateo 1 week, 4 days ago

CHP : Tractor trailer fire on CA-1 Southbound south of CA-17 N (Santa Cruz). Right and center lanes blocked. Expect delays.

Santa Cruz 1 week, 6 days ago

CHP : Police department activity on CA-1 Northbound and Southbound south of CA-17 S (Santa Cruz). All lanes blocked. Expect delays.

Santa Cruz 1 week, 6 days ago

CHP : Traffic Hazard on CA-1 Eastbound and Westbound north of Rocky Point Rd (Steep Ravine Trail) (). Lane affected. Expect delays.

Santa Cruz 2 weeks ago

CHP : Traffic Collision with Injuries on CA-1 Eastbound and Westbound at Rocky Point Rd (Steep Ravine Trail) (). Lane affected. Expect delays.

Santa Cruz 2 weeks, 4 days ago

CHP : Traffic Hazard on CA-1 Southbound entering at Bay St (Unincorporated). Right lane affected. Expect delays.

San Mateo 2 weeks, 5 days ago

CHP : Disabled vehicle on CA-1 Southbound north of CA-84 (San Gregorio). Lanes blocked. Expect delays.

San Mateo 4 weeks, 1 day ago

CHP : Traffic Collision on CA-1 Southbound at Skyline Blvd (Daly City). Lanes blocked. Expect delays.

San Mateo 1 month ago

CHP : Traffic Hazard on CA-1 Southbound south of Monterey Rd (Pacifica). Lanes affected. Expect delays.

San Mateo 1 month ago

CHP : Traffic Collision with Injuries on CA-1 Southbound south of Carlos St (Moss Beach). Lane blocked. Expect delays.

San Mateo 1 month, 1 week ago

CHP : Traffic Hazard on CA-1 Southbound at I-280 S-CA-1 S Join (Daly City). On Ramp blocked. Expect delays.

San Francisco 1 month, 2 weeks ago

CHP : Traffic Hazard on CA-1 Southbound south of Gravenstein Hwy (Valley Ford). Lane blocked. Expect delays.

Sonoma 1 month, 3 weeks ago

CHP : Traffic Collision with Injuries on CA-1 Southbound at Almonte Blvd (Unincorporated). Lane affected. Expect delays.

Marin 1 month, 3 weeks ago

CHP : Disabled vehicle on CA-1 Southbound north of Swanton Rd (Unincorporated). Lane blocked. Expect delays.

San Mateo 1 month, 3 weeks ago

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

Santa Cruz 1 month, 3 weeks ago

CHP : Disabled tractor trailer on CA-1 Southbound at Devil's Slide Trail (Pacifica). Lane blocked. Expect delays.

San Mateo 2 months ago

CHP : Traffic Hazard on CA-1 Southbound north of Old Devil's Slide Hwy (Pacifica). Lane affected. Expect delays.

San Mateo 2 months, 1 week ago

CHP : Traffic Hazard on CA-1 Southbound north of Carlos St (Moss Beach). Lane affected. Expect delays.

San Mateo 2 months, 1 week ago

CHP : Traffic Collision on CA-1 Southbound at CA-17 N (Santa Cruz). On Ramp affected. Expect delays.

Santa Cruz 2 months, 1 week ago

CHP : Traffic Collision with Injuries on CA-1 Southbound at Devil's Slide Trail (Pacifica). Lane blocked. Expect delays.

San Mateo 2 months, 1 week ago

CHP : Traffic Collision with Injuries on CA-1 Southbound at Devil's Slide Trail (Pacifica). Right shoulder affected. Expect delays.

San Mateo 2 months, 2 weeks ago

CHP : Traffic Collision on CA-1 Southbound at Mendocino County Line (Unincorporated). Lane affected. Expect delays.

Sonoma 2 months, 3 weeks ago