We have a 13’ 4” fifth wheel. There are specialized gps devices but we wanted to use our truck’s nav display so we subscribe to LowClearances.com. That subscription allows us to download and install POI files with the location of thousands of low clearance locations. We downloaded the POI file directly into the Chevy Nav system and also into Google Maps which we can then use with Apple Car Play.
This does not route around low clearances, simply shows them on the map. That’s not a problem for us because I typically map the next days travel in advance. I also use RVTripWizard for trip planning before we leave. RVTripWizard also shows low clearance locations although not as many as LowClearances.com.
