The collision occurred in the westbound lanes of the highway at around 3 a.m. It involved a semi and a pickup truck, which was driving the wrong way.
The driver of the pickup truck, Kraig Skoye, was transported to hospital with serious injuries. He is the person now facing the impaired driving charge.
The driver of the semi-truck, a 38-year-old man from Calgary, was also taken to hospital for injuries.
A collision reconstructionist investigated the collision.
The lanes heading eastbound and westbound were shut down for a period of time but all lanes were fully reopened at 12:30 p.m. Saturday.
Police say Skoye was released on a justice of the peace undertaking to appear in court on Oct. 8 at 9:30 a.m.