What do you guys use to help navigate and stay away from low bridges?
Read the signs on public roads. Private property doesn't have to post anything, and your still at fault.
And not always "low bridges" (Stay on truck route) Beware of any clearance that is lower than what your height is.
I wrote my number down on a 3X5 card and paper clipped it to my sun visor, so I could refer often. But after awhile you'll learn your number.
I wouldn't put any faith in those GPS the are supposed to route you around either.
Here is an old vid but good visual of what can happen when you least expect it.
P.S. when that vid came out many thought she also got crushed, but no other info If I remember right.
https://www.youtube.com/watch?v=K_yMgHUL-LM(I'm a retired truck driver of 34 plus years and never any overhead damage. Then one day in my own back yard I hit my own tree :E)