[SEL] way OT again,,,,overpass clearances

[bill boyce]

does anyone know of a way to find highway overpass, or underpass clearances for a certain route?  i googled and found 
"low clearances" for each state, but the benchmark used is the state statutory height,, usually 13.5 or 14 feet,,,i;m looking for routes that give more clearance,,, i;m looking at hauling a ag spray rig from the midwest down into southern arkansas,, the 60 foot booms folded will still stand 14 or 15 feet  off the ground,when the rig is loaded on the trailer,,,,,
any ideas will be appreciated,,,
bill boyce
lost prairie, arkansas
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