OREM -- Utah Highway Patrol Sgt. Kerry Ball loves his job, even when it's dangerous.

"It's the job I signed up to do 12 and a half years ago," he said. "And it's the oath that I gave to protect all lives in Utah."

On Sunday afternoon, that oath was put to the test in a life-or-death situation.

An elderly man driving a white SUV was traveling southbound in the northbound lanes of I-15 near Springville in Utah County.

Several drivers swerved to avoid a head-on collision.

Ball caught up to the driver near Payson and Benjamin and made a decision.

"And at the last second, I just turned my wheels into him and caught him with the left front of my car," he said.

The deliberate collision stopped the SUV.

Ball suffered some minor injuries but was already back at work on Monday.

"I could've been hurt, yes. I do have some bumps and bruises, but nothing that is going to keep me away from doing the job that I love," he said.

Ball calls it his duty.

"It's our duty to protect the public and everybody traveling on the roadways," he said. "And if we have to stop that threat at any means necessary, then I'll put my life on the line and stop those cars."

Witness Sam Drake recorded video of the wrong-way vehicle from the other side of the interstate.

"I made a very, very quick decision to end my video and call 911," said Drake.

For him, seeing Ball's actions was unforgettable.

"When I looked out my window, and I caught just a glimpse of it, it looked like he just clipped him and the car slid 90-degrees and came to a stop," said Drake. "He probably saved lives. But that is the most impressive thing I have ever seen."

Ball said it was a strategic maneuver to get the car to stop.

"It was very scary and there is no way to train for that one. We can train for the wrong-way intercept, but when we have to do that wrong-way intercept the opposite way, there's no way to train for that without damaging cars and hurting other people," said Ball.

The driver of the wrong-way car and his wife, both elderly, also suffered minor injuries but they will be okay.

They traveled nearly eight miles the wrong way before they were stopped.

The case is being investigated by the Utah County Sheriff's Office to see if any charges might be filed.