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 8/1/2009 4:49 AM
 


I have recently had a few close calls with low bridges that could easily have resulted in a bad accident.

Does anyone know of a good GPS system or add on for my Garmin that would give a low bridge warning?

Something like a speed camera POI list could work, but I can't seem to find anything.

Many thanks.

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 8/1/2009 12:13 PM
 

The Garmin Nuvi 465T is made specifically for truckers, and allows you to enter your rig's specs.  When you approach a bridge too low, it warns you.  I don't know if this software is available for download to other Garmin units.  If you click on the icons HERE, you'll be able to see the various displays.  Good luck. - Dave

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 8/1/2009 2:19 PM
 

Somewhat related....On I-95 north in VA there is a sensor mounted on the side of the road which triggers a warning sign if the vehicle is too high and alerts the driver to exit at the next ramp. I suspect that all interstate overpasses conform to a standard height, which I think is 14'-4". Someone more knowedgeable about this standard height might correct this figure if it is in error.

Notwithstanding signs and flashing lights, hardly a year goes by without a hi-profile vehicle slicing open the top of their semis or motorhomes on some of the parkways (designated for passenger vehicles only) in the Boston area. A couple of years ago there was picture in the paper of two A/C units and a sizable piece of roof from a motorhome whose driver apparently thought his motorhome was a passenger vehicle.  Certainly increased the ventilation!  There has never been anything invented yet to overcome stupidity.


Frank FitzGerald Middleton MA RexAir 37' with Saturn L300 Toad Oh Yes I almost forgot, Pat-my copilot
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 8/1/2009 3:36 PM
 

The Federal Height limit on vehicles is 13 feet 6 inches . I don't know what the Federal limit on bridge clearance is but it higher than 13-6!  While I've been concerned a few times going under low bridges and overpasses, I've never seen one that wasn't clearly marked when it was really too low to meet the Federal limit.

When we workcamped near Bryce Canyon several years ago, a number of folks called the campground to cancel when they realized that the road into Bryce Canyon NP had a couple of very short tunnels that were something around 15 feet. They swore they could not get their rigs through those tunnels.  Of course, there isn't an RV around that won't go through a 15 foot tunnel.

The best one was the 1 plus mile tunnel coming out the east entrance to Zion NP.  That is the one where the rangers close the road to two way traffic, charge you ten bucks and RVs have to drive right down the middle of the road to have enough clearance. That one is a lot of fun.  We have driven through it twice.

My personal nemisis is a railroad bridger south of Chatsworth, GA on US 411.  Its not much higher than our rig and everytime I go through it, I am tempted to let the air out of the suspension system to make sure I clear. Of course, I always clear, but thoughts go through my mind everytime, things like, has the road department paved this road and decreased the clearance since the last time I drove through here!

I don't believe any of my Garmins or Street Atlas tell me bridge heights. At least I cannot find anything about them.

 


Libby and John and RV the CAT Ford F 150 towing a 2017 Forest River Vibe 277 RLS Click here to see our current location
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 8/3/2009 6:10 PM
 

Thanks everyone for your helpful advice.

I have decided to try a POI database that has been recommended to me on several forums.

You can download it at http://www.lowclearances.com

It looks really good.

Thanks again.

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 6/24/2014 11:58 PM
 

Front of rand McNally 48 state truckers map book has lists of low bridges as well as weight restricted bridges and length restrictions and lots of other tools new one every year and your good

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