Freeway/Hwy Overpasses

Far as I know, all the freeways "I" highways in the USA are travellable by almost every truck out there. If you stick to the largest highways and then the largest secondary roads, you're usually safe. It's usually only the "rinky dink" roads that have low overpasses or city streets at times. If you're not sure where to go to get somewhere, ask another trucker and he'll/she'll give you a safe route where you won't run into overpass problems or ask your dispatcher - they USUALLY know but not always. Another trucker is usually your safest bet

 

motor carriers map will give u ALL low clearances int he entire state. i bought one at pilot for 15 bucks the new ones are 30 but could save ya some time

 

Got my laminated 2008 Rand McNally Motor Carriers Atlas for $19 at Love's. Normally was $39.

You should note that atlas' do not give low clearance listings for ALL roads in a state. Only for high traffic roads. That's why you have to always keep looking at clearance signs on all overpasses.

 

Man, I just bought one at the Flyin' Hook for $29.95 !!! Well I guess I should have checked around. The big laminated road carrier atlas has a very nice guide to low bridges and passes, but it ain't the gospel. Be Careful and watch. If there is any doubt, stop on the shoulder and wait till a J.B. Hurt, or Crash Rollover England truck passes.
They'll find out if it was too low for you or not!!!

 

Roger that, yeah one time in NYC I went down a road and saw an overpass that was marked 12'6". I pulled over and tried to figure out how to get around it. I was only there for about 3 minutes when another big truck come flying though from the other direction. He hollered out on the CB that the over pass has always been mis-marked like that and big truck go through there all day long.

 

Best advice is watch for the low clearance signs they are not ll in the motor carriers atlas.
there a low clearance on 90 outside spokanne washiton, there also are some low clearances in some lanes down by saint louis mo if I remember right

 

A lot of these up north allow for snow build up in the equation.

 

First off if the overpass is not posted it is 14 foot high. Secondly in regard to New York the state measures from the curb up to the lowest section of the overpass. This is for liability issues and again lawyers were involved. So in the event a 13' 6" trailer strikes a bridge that is marked at 12' 6" the driver and company has no recourse for a defense. The fact that roads freeze and have snow buildup can potentially make a passable road impassable in regard to 13' 6" vehicles.
Besides the state of New York saves tons of money on not having to re-measure and change their height signs whenever they they re-pave that section of the roadway.