A serious multi-vehicle crash on southbound U.S. Highway 101 near Millbrae and San Francisco International Airport (SFO) caused significant traffic disruptions Friday evening, bringing one of the Bay Area’s busiest commuter corridors to a near standstill as emergency crews responded to the scene. The collision prompted lane closures, extensive delays, and a large-scale emergency response while authorities investigated the circumstances surrounding the fatal incident.
According to preliminary information released by the California Highway Patrol (CHP), the crash occurred on southbound Highway 101 near the Millbrae Avenue exit at approximately 7:00 p.m. Multiple emergency units, including CHP officers, local firefighters, and emergency medical personnel, were dispatched after receiving reports of a collision involving more than one vehicle.
Upon arriving at the scene, first responders immediately secured the affected area, assessed those involved in the collision, and began providing emergency medical care while additional personnel managed traffic to prevent secondary accidents. Highway maintenance crews also assisted with lane closures and debris removal as investigators began documenting the crash scene.
Authorities reported that the collision involved at least two vehicles. Preliminary findings indicate that one of the vehicles overturned multiple times before coming to rest on the roadway. Emergency personnel located the driver suffering from critical injuries and transported him to a nearby hospital for emergency treatment.
Despite the efforts of medical professionals, the driver later succumbed to his injuries. Officials have not publicly released the identity of the deceased pending notification of next of kin. According to investigators, the occupants of the second vehicle involved in the collision were not reported to have sustained injuries.
The California Highway Patrol also stated that preliminary evidence suggests the deceased driver was not wearing a seat belt at the time of the crash. Investigators continue to examine whether this factor contributed to the severity of the injuries sustained during the collision.
The crash resulted in the temporary closure of several southbound lanes while emergency responders treated victims, removed damaged vehicles, and conducted an initial investigation. Traffic quickly backed up for several miles, affecting motorists traveling toward San Francisco International Airport, Millbrae, Burlingame, San Mateo, and neighboring Peninsula communities.
Because Highway 101 serves as one of Northern California’s most heavily traveled transportation corridors, the lane closures created widespread delays extending well beyond the immediate crash location. Commuters heading to evening flights at SFO, residents returning home from work, and commercial traffic experienced extended travel times as congestion spread throughout the surrounding highway network.
Transportation officials advised motorists to reduce speed when approaching the emergency scene, obey traffic control personnel, and use alternate routes whenever possible until all lanes could be safely reopened. Drivers traveling through the area were also reminded to remain alert for emergency vehicles and roadside personnel working near active traffic lanes.
The California Highway Patrol has launched a comprehensive investigation into the fatal collision. Investigators are examining physical evidence collected at the scene, documenting vehicle damage, reviewing roadway conditions, and interviewing witnesses who may have observed the events leading up to the crash. Authorities are also expected to review available traffic camera recordings and any dashboard camera footage that could assist in reconstructing the sequence of events.
At this stage of the investigation, officials have not determined whether excessive speed, distracted driving, mechanical failure, impairment, or other contributing factors played a role in the collision. Investigators emphasized that all potential causes remain under review until the evidence has been fully analyzed.
Fatal traffic collisions require extensive investigative work before definitive conclusions can be reached. Crash reconstruction specialists may be called upon to analyze vehicle movements, impact angles, roadway markings, and other technical evidence to establish exactly how the collision occurred.
The incident serves as another reminder of the importance of roadway safety on heavily traveled highways such as U.S. Highway 101. Transportation officials continue to encourage motorists to wear seat belts, remain attentive while driving, maintain safe following distances, and adjust their speed to match traffic and roadway conditions. These precautions can significantly reduce the risk of serious injury during traffic collisions.
Following completion of the on-scene investigation, crews worked to remove damaged vehicles, clear debris, and inspect the roadway before reopening all affected lanes. Traffic gradually improved as normal travel resumed, although delays continued for some time after the initial response concluded.
The California Highway Patrol is asking anyone who witnessed the collision or possesses relevant information, photographs, or dash camera footage to contact investigators. Such information may assist authorities in determining the exact circumstances surrounding the crash.
As the investigation continues, officials are expected to release additional information once it becomes available. In the meantime, the thoughts of the community remain with the family and loved ones of the individual who lost his life in this tragic Highway 101 collision.
