On Wednesday, April 30, 2014, at approximately 1:30 a.m. the Idaho State Police investigated a one-vehicle rollover crash westbound on Interstate 84 at mile marker 256, near Sweetzer Summit. Wesley Kirkham, 44, of West Valley, Utah, was driving a 2007 Freightliner semi pulling a 2002 box trailer. Kirkham swerved to miss a deer and lost control of the vehicle, causing it to tip and block both lanes of westbound traffic for approximately two and a half hours before the fast lane was open. The slow lane of travel was blocked for another nine hours. Kirkham was taken to Portneuf Medical Center in Pocatello via air ambulance.

This crash is still under investigation by the Idaho State Police.