My 5vr is 13' 4" (actual measured height)
We don't use Interstates unless we HAVE to.
Travel mostly secondary/backroads as much as possible.
Come across s few bridges/overpasses that were too short. So we used an alternative route.
Usually the 'signs' are long before so one has time to go different way.
Couple of times we came upon some that didn't/weren't marked ahead of time.
So we backed up/turned around and went on our way.
No big deal to me.......
More overhead clearances issues in CGs and going down town/city streets so pay attention and LOOK UP!