georgem2106ExplorerSep 03, 2016I40 in ArizonaBetween Kingman and Winslow rivals some dirt roads for being bad! There are areas that would shake your dentures out even at slower speeds.
lane_hogExplorer IISep 15, 2016I've driven it many times, and didn't find it any worse than any other stretches in CA or NM. But, lots of truck traffic on I-40 and I suspect the fuel taxes don't quite cover the actual damage they cause.