Brady Hensley, 23, was traveling east on the freeway east of Caldwell when he drove his 1992 Ford Ranger pickup off the shoulder into a ditch.
The accident occurred at around 5:45 p.m. Thursday, at Milepost 30.
Hensley, who was not wearing a seatbelt, was taken by ambulance to St. Alphonsus Medical Center in Nampa for treatment, according to the Idaho State Police.
The road was partially blocked for approximately thirty minutes while crews worked to clear the scene.
The crash is under investigation by the ISP.