Watch that bridge!!!

Besides low bridges, you have to watch for low tree branches, especially if you are in the curb lane. The facts are that no GPS can warn you about everything. You have to know your vehicle's exact height, be able to read and heed warning signs, and instinctively know whether your coach will fit under that low branch.
If you don't or can't do those things, you will eventually have to pay for repairs to your coach.