Idaho State Police are continuing to investigate a multi-vehicle accident that occurred on Thursday, August 28th. The accident took place on I15, at mile 93, just before 3:30 p.m.
The accident involved three vehicles. The first, a red Toyota Avalon, was being driven by a 21-year-old from Rexburg. As he traveled southbound, he began to hydroplane, due to excess water on the roadway. He collided with the barrier, before striking the second vehicle, a blue Dodge Ram pulling an RV, driven by a 20-year-old man from Utah. The Dodge was then pushed into the third vehicle, a Kenworth Semi, driven by a 63-year-old man from Rigby.
The driver of the Toyota was transported to a local hospital for treatment of his injuries. The other drivers were checked and treated at the scene. All three individuals wore seatbelts at the time of the accident.
Idaho Law Blog

