I was driving home from work on the interstate in the right lane at approximately 70 miles per hour, following a truck. In the middle of the lane, there was a rusty three-pronged trailer hitch that was sticking up with the ball up in the air. The truck in front of me cleared the object. I did not have enough time to swerve to avoid the hitch, and it went below my car. I felt a firm "thud" as the hitch struck the bottom of the car, and it felt as though it even lifted the car up in the air. My assistant later found a gouge in the tarmac where the item scraped into the road.