My over 13' rv went under a 13' clearance bridge

I know of a overpass in a small town in Ohio on a major thoroughfare, where they have not changed the clearance sign in 30 years. Yet they repave the roadway nearly every year. No they do not grind the old roadway. I honestly do not think they even think about it. I have ask them about it, the answer is always no one has got caught under it yet. No of course they haven't. Most are like me I take the truck route all the way on the other side of town to get to the main road again.