SuiteSuccess Posted June 15, 2018 Report Share Posted June 15, 2018 Are the height signs for arched tunnels to the lowest point on the wall or to the center of the arch? 2006 Volvo 780 "Hoss" Volvo D12, 465hp, 1650 ft/lbs tq., ultrashift Bed Build by "JW Morgan's Custom Welding" 2017 DRV 39DBRS3 2013 Smart Passion Coupe "Itty Bitty" "Don't go around saying the world owes you a living. The world owes you nothing. It was here first!" Link to comment Share on other sites More sharing options...
Big5er Posted June 15, 2018 Report Share Posted June 15, 2018 Carl, they "should" indicate the height so that a vehicle traveling through the tunnel, IN it's own lane and lower than the height posted will fit. MY PEOPLE SKILLS ARE JUST FINE.~It's my tolerance to idiots that needs work.~ 2005 Volvo 780 VED12 465hp / Freedomline transmission singled mid position / Bed by Larry Herrin2018 customed Mobile Suites 40KSSB3 2014 smart Fortwo Link to comment Share on other sites More sharing options...
Yarome Posted June 15, 2018 Report Share Posted June 15, 2018 Depends on the state and signage. Typically, and if the sign lists nothing or just "height" or "clearance", it's the minimum clearance measured from the edge of the roadway or the lowest overhead obstruction.... although it's sometimes measured at the edge of the shoulder. If the sign specificilly says "max" height/clearance it's measured at the center of the roadway and "min" height/clearance" is measured at the edge of the roadway. Link to comment Share on other sites More sharing options...
adept99 Posted June 15, 2018 Report Share Posted June 15, 2018 5'er, Where Carl & I are located, the tunnels here are old and small even for mining carts. So...sometimes they're marked at the center of the arch, sometimes at the top of the vertical wall, sometimes splitting the difference, maybe not marked at all. Watch the traffic, slow down, and beware of New Pavement Paul & Paula + Daisy the amazing wiggle worm dog... 2001 Volvo 770 Autoshift, Singled, w/ Aluminum Bed - Toy Draggin 2013 395AMP XLR Thunderbolt Toy Hauler 2013 Smart Passion 2012 CanAm Spyder RT 2013 Harley Davidson Street Glide Link to comment Share on other sites More sharing options...
SuiteSuccess Posted June 15, 2018 Author Report Share Posted June 15, 2018 Thanks guys. Was considering looking at some roads in “our neck of the woods” as Paul says and when using Truck & Travel App it just says height 14’3” which is fine if it did not mean I had to be over the center line. 2006 Volvo 780 "Hoss" Volvo D12, 465hp, 1650 ft/lbs tq., ultrashift Bed Build by "JW Morgan's Custom Welding" 2017 DRV 39DBRS3 2013 Smart Passion Coupe "Itty Bitty" "Don't go around saying the world owes you a living. The world owes you nothing. It was here first!" Link to comment Share on other sites More sharing options...
jkoenig24 Posted June 15, 2018 Report Share Posted June 15, 2018 Carl, there is a LowClearances app that you can buy. Once you've downloaded their database, it can be installed on your GPS device. http://www.lowclearances.com/ Link to comment Share on other sites More sharing options...
SuiteSuccess Posted June 15, 2018 Author Report Share Posted June 15, 2018 Thanks John. My Rand McNally can be programmed for low clearances, but bet your app is more inclusive. 2006 Volvo 780 "Hoss" Volvo D12, 465hp, 1650 ft/lbs tq., ultrashift Bed Build by "JW Morgan's Custom Welding" 2017 DRV 39DBRS3 2013 Smart Passion Coupe "Itty Bitty" "Don't go around saying the world owes you a living. The world owes you nothing. It was here first!" Link to comment Share on other sites More sharing options...
lockmup68 Posted June 16, 2018 Report Share Posted June 16, 2018 also, on older roads/bridges especially, if it is really close, hope they have not overlayed pavement since they measured. You might have seen the big CAT dump truck on trailer that took out bridge in Nashville a few weeks ago. They supposedly had 6 inches of clearance, but since they repaved 8 times since the last measurement, they were 6 inches over. Or it was the driver's fault. There was no clear determination last I saw. There is a bridge by Montgomery Bell State Park that says 14' on it. But I am willing to bet, there is no more than 12' clearance under there. I stopped and turned around. A travel trailer in front of me looked like it barely cleared and I am at least 3-4 feet taller than that. 2003 International Eagle 9200i, Cummins ISX, Freedomline 2007 Teton Scottsdale XT4 Link to comment Share on other sites More sharing options...
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