[QUOTE=5er_tom;1073338]Low bridges are not an issue on highways and Interstates. We have a 13' 8" high fiver. Only once in traveling the country have we had an issue. In the TX panhandle there was a well marked 13' bridge. We stopped about 1/4 mile short and watched. Noticed 18 wheelers heading straight towards it. If they can, I can I thought. Turns out just short of the bridge was a road that went around the bridge. I just followed the big guys.
Most low clearances are well marked well in advance.
Be careful in Canada as they mark their clearances in meters, not feet, and I do not understand the metric system. Quote
Most bridges are standard 13' 6" ft. or in Canada 4.15 meters. Anything lower or higher will be marked, at least from my experience in Canada. The best marked are in Saskatchewan where they let you know how high (clearance) at least 2 exits ahead before you arrive, again only from my experience!!