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Old 06-06-2015, 08:29 AM   #11
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Having worked in the trucking industry for 33 years, I can tell you not to believe the posted height on an overpass. Many different circumstances conspire to change the height by one or two inches, lower or higher. The best thing to have is a truck or RV specific GPS which routes with clearances in mind.

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Old 06-06-2015, 08:46 AM   #12
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Saw this video when researching the subject myself. Painful to watch a couple a/c's be squeegeed from their roof.

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Old 06-06-2015, 09:05 AM   #13
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Originally Posted by mgmalm View Post
Our XLR 340x12 measures 13'2" at the highest point. Since we are new to a 5th wheel height, do any of you have suggestions on traveling? The interstates are all acceptable heights but how can you find out if a secondary roads overpass is high enough going to a campground. I'm suspecting that I just need to ask when I make a reservation but was curious about what others do.
Garmin 760RV, saved my bacon in was $399, but worth the price when considering the cost of one repair bill from hitting an overpass! That model also will route you around weight/length/width restricted areas once you input your own rigs numbers. I recommend it!

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Old 06-06-2015, 09:07 AM   #14
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Painfull was my stomach hurting from laughing so hard!

Most campsites even tell you on there web site routes not to take.
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Old 06-06-2015, 10:22 AM   #15
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Originally Posted by Jim34RL View Post
I use a Rand McNally GPS unit for RV's. In the RV set-up section the user states the parameters for the camper such as height, length, width and so forth. The route for towing is than computed by the GPS using these parameters. So far it has been accurate, but I still use paper maps and common sense.
I also use the Rand McNally GPS (7720 I think). One caution - it will only route you around low clearances IF you are following route to a specific destination (e.g. the campground). If you are just using the map feature and driving around, it will not warn you of low clearance.

Another good resource is a Truckers Road Atlas. Has low clearances listed in a table by state, then by highway and location.

Jim - I'm from Oswego, NY.
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Old 06-06-2015, 12:43 PM   #16
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I had the Good Sam site route us and I went under a underpass that was way too close. I called them and they said even what is listed on signs at the overpass maybe incorrect. We got lucky by a few inches. Scared us badly. I like the GPS idea but I'm not sure if I trust that either. Calling camp ground maybe best.
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Old 06-08-2015, 01:00 PM   #17
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Thanks everyone. We'll look into updating our Garmin. We haven't used it since the phones do so well with directions.

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