I was working at the rock farm in the next county long ago. Vastly different climate from here. Had a 3500' pass to go through on the way to work. One winter night we had a rain shower. On the other side of the pass were a couple of bridges that were the pre-cast beams with the concrete deck poured on top. Well it got kinda cold up there on the pass that night. I was just motoring along like normal and the next thing I know me and my Yota 4x4 are all crossed up sliding down that bridge :steering: . Deck was maybe 16" thick, nothing but sub-freezing air above and below, frozen concrete :realcrazy:. The rest of the roadway was unaffected.