Low Bridges - Route planner

Lin1087

Hi Fellow Holidaymakers  I have been caravanning for a great number of years and have recently added an American RV to my list of vehicles.
I have never had one of these before and at almost 12' high i'm wondering if you know of a particular road atlas that shows all low bridges to assist with route planning. I am particularly fond of the Scottish Highlands but have seen quite a few low bridges
on past travels. Any help will be greatfully recieved, thank you. Linda