Truck and camper height and overpass question?

There is a publication called the Truckers Road Atlas (I think that's the name) that lists all the low underpasses by state. I think it also marks them on the state maps.

I've found most low underpasses are typically beneath railroad tracks. The tracks have often been there for 150 years or so, well before vehicle got so tall.
It's quite foolish not to know exactly how tall your rig is by measuring carefully. Otherwise, you could hit something you "estimated" you would clear. Or, you could spend a lot of time and fuel detouring when you didn't have too.
My TC on my '05 Chevy was 11' 5" to the top of the AC. There's a bridge under the train tracks near me that I went under a lot. It was marked as 11' 10". I went very slowly the first time watching to be sure it was right and it was.

hornet28 wrote:
No one can tell you exactly how tall your rig is. Get a ladder and tape measure and find out.

X2!
Add a level and 2X4 to that so you can measure to the to the top of the AC unit. Likely it will be less than 12'. With a TC you are standing at or very close to the trucks bed height, with a 5th wheel the floor of the upper area is at the height of the bed rail +6" or more and most habve head room for 6'+.

No one can tell you exactly how tall your rig is. Get a ladder and tape measure and find out.