MULLAN, Idaho — A 49-year-old woman from Kellogg was killed early Friday morning after being struck by a semi-truck on eastbound Interstate 90 near Mullan, according to Idaho State Police. The fatal crash is the latest serious incident along a stretch of highway that runs through the heart of Shoshone County’s Silver Valley.
The collision occurred at approximately 1:52 a.m. near milepost 64, a rural section of I-90 in the mountains east of Mullan. A red semi-truck, operated by a 30-year-old male from Mountlake Terrace, Washington, struck the woman, who was on the roadway at the time of impact. She was pronounced dead at the scene. Next of kin has been notified, authorities said.
Eastbound Lanes Closed for More Than Three Hours
The collision triggered an extended closure of eastbound Interstate 90 as emergency responders and Idaho State Police investigators worked the scene. Eastbound lanes remained blocked for approximately three and a half hours following the crash, causing disruptions to overnight freight and commercial traffic moving through the I-90 corridor — one of the primary routes connecting the Silver Valley to eastern Idaho and Montana.
Law enforcement, emergency medical personnel, and crash investigators responded to the scene in the early morning hours. The road was eventually cleared as investigators continued gathering evidence and documenting the crash site.
For continued updates on the investigation, see the Idaho State Police investigation into the fatal pedestrian strike on Interstate 90 near Mullan.
Circumstances of Crash Remain Under Investigation
Idaho State Police have not released information regarding what led the woman to be on the interstate at the time of the crash, nor have authorities disclosed any additional circumstances surrounding the collision. The investigation remains open and active.
The stretch of I-90 near Mullan and the surrounding mountain communities presents unique challenges for motorists and emergency responders alike. The corridor runs through steep terrain in the Bitterroot Range, and nighttime conditions along the route can be particularly hazardous, especially in the early morning hours when visibility is limited and traffic is less predictable.
Mullan, a small community at the Idaho-Montana border, sits near the eastern end of Shoshone County. The town is located just west of Lookout Pass, a well-known mountain crossing along I-90. The area sees heavy commercial truck traffic year-round as freight and semi-trucks navigate the interstate connecting the Pacific Northwest to the northern Rocky Mountain states.
Idaho State Police Continue Investigation
Idaho State Police are asking anyone with information relevant to this crash to come forward. No charges or citations have been publicly announced in connection with the incident, and authorities have not indicated whether any contributing factors — such as road conditions, vehicle performance, or other circumstances — have been identified.
The Kellogg woman’s identity has not been publicly released pending full notification of family members.
Crashes involving pedestrians on interstate highways remain among the most serious and challenging for law enforcement to investigate, particularly when they occur in the overnight hours in remote areas. Idaho State Police District 1, which covers the northern and Silver Valley region of Idaho, handles crash investigations along this section of I-90.
Shoshone County residents and commuters who regularly travel I-90 between Kellogg, Osburn, and the Idaho-Montana state line are encouraged to remain alert, particularly during nighttime travel through mountain passes and remote stretches of the highway.
What Comes Next
Idaho State Police continue to investigate the circumstances of the fatal crash near milepost 64 on eastbound I-90. No timeline has been provided for the conclusion of the investigation. Authorities have not indicated whether any additional findings or legal actions will follow. Shoshone County News will continue following this investigation as new information is released by Idaho State Police. For statewide traffic safety coverage, visit Idaho News. Additional regional public safety reporting is available at Idaho News Network.