Originally Posted by Joe O
I've now seen a lot of feedback on the RV GPS especially Garmin, but what I haven't really seen is anyone talking about bridge clearance issues. I like to take back roads and stay off main highways and freeways so bridge clearances is a main concern since we bought a new 33IK Silverback last year which stands at about 13ft high or 4metres.
Like I said, the comments I read on-line from truckers is that the RV GPS aren't that reliable for bridge clearance. Anyone had any issues with bridge clearances?
I really do not think that they can be exact. If they overlay a road they just made the overpass 2" lower unless they taper to it. There is no sure fire way but to plan your routes and look at the bridges through a Trucker atlas and your Garmin. I'm 12'8" high I know that from measuring. I set mine for 13'. If you travel back roads not even a RV or Trucker model will bring some areas up. It will warn you that there is no data for that road. That's when you can check your truckers atlas and look. I then would keep a close eye on road signs with height warnings. Not many overpass's under 13' that I have seen. If a truck can go down that rd. I'm sure you can also. It's a tool not a guarantee...
There a overpass in Durham NC less then 12', there is a big sign posted 2 blocks before it. Almost every month an RV or a truck hits it. Makes no sense at all to me, they must be driving in Disneyland.