wa8yxm wrote:
By Definition anything over 13 feet is "TOO TALL".. That is the maximum allowed height for vehicles without over size permits on the highways by law in most (if not all) states. Bridges and overpasses lower than I think 16 Feet are supposed to be marked .. That's the legal definition of too tall.
The practical definition of too tall is: The height of the bottom of the bridge, overpass or other overhanging item you are approaching.
NOTE: GPS low-bridge warnings can be wrong.. Imagine if you will a bridge that is 13'.. Well yesterday's project for the highway comission was adding 2" of asphault to the surface of the road so it's now 12'10". Your rig is 12' 11".
Has happened to many a trucker.. I know.. My office phone was 9-1-1.
13' 6", NOT 13', is the limit in most places.