Alameda, CA, September 28 – A 17-year-old identified as Trezur Williams died after a collision between a car and a tractor-trailer on Mountain House Road near West Grant Line Road, according to the Alameda County Sheriff’s Office Coroner’s Bureau. The crash happened around 12:04 p.m. on Friday, September 25, 2026, in an unincorporated part of the county. The California Highway Patrol identified Williams as a passenger in the car involved in the crash.
Teen Passenger Killed in Collision With Tractor-Trailer on Mountain House Road
According to the California Highway Patrol, Williams was a passenger in a 2004 Honda Civic traveling northbound when it collided broadside with a 2014 Freightliner Cascadia tractor hauling two end-dump trailers, which was traveling southbound. Williams was ejected from the Civic in the crash and sustained fatal injuries. Paramedics responded to the scene and pronounced her dead there.
The crash initially closed both directions of the roadway, and northbound lanes remained closed afterward as investigators continued processing the scene. CHP dispatch logs initially described the vehicles involved as a dump truck and a gold sedan, before the sedan was identified as the Civic. The Alameda County Coroner’s Office also responded to the scene, and an evidence tow was requested for the Civic. Both drivers remained at the scene following the crash.
The California Highway Patrol said the crash remains under investigation, that the circumstances leading to it have not yet been determined, and that no arrests have been reported. It is also not known whether the tractor-trailer’s driver was injured. Williams’ identity was released only in a follow-up update from the Alameda County Sheriff’s Office Coroner’s Bureau, after the CHP’s initial report did not name her.
Why evidence in a commercial vehicle case has a deadline of its own
A collision involving a commercial vehicle is not simply a larger car accident. The carrier holds records the other driver never has: electronic logging data, maintenance and inspection history, dispatch instructions and driver qualification files.
Those records are the best evidence of what happened and they do not last indefinitely. Retention periods are measured in months for some categories, so the window to preserve them can close long before the deadline to file a lawsuit does. A preservation demand sent early is the step that keeps them available.
The deadline that applies to a claim like this one
Code of Civil Procedure section 335.1 gives two years for an action for injury to, or for the death of, an individual caused by the wrongful act or neglect of another. The same two years covers an injury claim and a death claim; there is no separate, shorter period because someone died.
Who is entitled to bring a claim when someone is killed
Code of Civil Procedure section 377.60 decides who may bring a wrongful death action. The first group is the surviving spouse, domestic partner, children and the issue of deceased children, or, where there is no surviving issue, whoever would take the estate by intestate succession.
A second group may bring the action only if they were financially dependent on the person who died: a putative spouse and their children, stepchildren, parents, and the legal guardians of the person who died where the parents are deceased. Parents are in that second group, which is the part families are most often surprised by, because dependency has to be shown rather than assumed.
Talking to someone about it
Culver Legal represents people injured in collisions across California. A conversation about what happened costs nothing, and we work on a contingency fee, which means there is no fee unless we win. If we do not win, we do not pass the case costs on to you either.
Nothing on this page is legal advice about any particular case, and the facts of a reported collision often change as the investigation continues.
