Kirsten Danielle Mergner, a former honor roll student at Damascus High School, crashed into an oncoming SUV before 5 a.m., according to police. The 50-year-old driver of that vehicle was treated for non-life-threatening injuries.
Route 27 was closed in both directions near Brink Road for most of the morning as police worked to determine an official cause.
Investigators said icy road conditions may have contributed to the crash. They said conditions at the time were icy, windy and below freezing.
Montgomery County police believe Mergner was wearing her seat belt. They do not believe the other driver, Jill Yvette Cole, was wearing hers.
Mergner attended Shippensburg University. She was just beginning her spring break.