Thurston County, WA (May 19, 2026) – A two-vehicle crash shut down part of Old Hwy 99 in Thurston County on Monday morning, leaving one person dead and another hospitalized. The roadway between Tenino and Tilley roads remained closed for several hours after the wreck was reported shortly after 9 a.m.
According to the Thurston County Sheriff’s Office, a truck and a sedan collided along the highway. The driver of the sedan died on the roadway, while the truck driver was taken to a nearby hospital for treatment. The extent of the person’s injuries was not immediately released.
Traffic in the surrounding section was affected throughout the day as emergency units worked to clear the roadway. Old Hwy 99 reopened shortly before 7 p.m. on Monday. Additional information about the accident had not been made public as of this report.
Investigators are still working to determine what led to the fatal crash. Our hearts go out to the family and friends grieving this loss.
Why Highways Are Often Closed for Hours After Serious Crashes
Major roadway closures can last for several hours after a deadly crash because crews must safely clear vehicles, debris, and damaged property before traffic can resume. In many cases, investigators also examine tire marks, vehicle positions, and roadway conditions to better understand how the wreck occurred.
Long closures are more common on highways and rural roads with limited alternate routes. Traffic backups may continue even after lanes reopen, especially when heavy equipment is needed to remove damaged vehicles. Medical transport activity and cleanup efforts can also extend the shutdown period. Early reports released after serious crashes often include only limited details while additional information is gathered and verified over time.
