 The SUV failed to stop at the intersection stop sign and was struck by the truck. The juvenile driver died at the scene. The driver of the concrete truck was taken to a local hospital with minor injuries. The roadway was blocked in both directions for two hours. The collision remains under investigation by ISP. With temperatures exceeding 100 degrees for at least the next seven days, the Idaho Transportation Department is urging motorists to prepare themselves and their vehicles for traveling in the extreme heat.