San Francisco, CA – On the late evening of Wednesday, June 11, 2025, a three-vehicle collision resulted in serious injuries, according to CHP Fatal.
The California Highway Patrol (CHP) reports that the accident took place around 11:20 PM near the southbound Interstate 280 on-ramp at Mariposa Street.
Emergency dispatch records indicate that the crash involved a white pickup truck, a black SUV, and a Honda Civic of unknown color. Multiple reports described the vehicles as having come to rest across several lanes, including the two right lanes of southbound I-280 and the Mariposa Street on-ramp.
Authorities received 911 calls from individuals involved in the crash, including one party who disconnected before providing full details. Another caller suggested there may be injuries, although no official count or condition of those injured was immediately available.
San Francisco Fire Department personnel responded to the scene and were observed working across several freeway lanes to provide aid and ensure safety. The Mariposa on-ramp to southbound I-280 was fully shut down for over an hour, and southbound lanes 2 and 3 on the mainline remained blocked during emergency response efforts.
The exact number and extent of injuries remain unconfirmed at this time. The cause of the collision is under investigation by the California Highway Patrol.
Personal Injury Claims & Comparative Negligence
Determining fault in a collision can involve multiple factors, and under California’s Comparative Negligence rule, several parties can share partial responsibility. Should evidence reveal that another party contributed to the injuries, victims may be eligible to file a Personal Injury Claim with the responsible party’s insurance, which can provide compensation for medical bills and lost wages during recovery.
