I believe Garmin has a GPS that is for truckers that has that info on it. check their web site
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Frank and Janet Henn
2000 Monoco Lapalma
being pushed by a 2004 Jeep Grand Cherokee
Traveling with Rainbow the wonder dog and now with Sunshine the rescue Schnauzer.
We have a Garmin and it has optional settings. One for cars, trucks or motorcycle I believe.
I have ours set on trucks and so far have not been faced with a low overpass. That could be an embarrassing and ugly situation. You might check yours out under settings and see if it helps. Good luck and happy camping.
Dennis
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Dennis & Sharon
2019 Sierra Denali CC
2006 Cruiser CF29RE
you can add to any garmin low bridges as a point of interest some can alert you if you get close here is a link..... http://www.poi-factory.com/poifiles