PhysicsIsFun t1_j11b69g wrote

I don't think they used salt on the roads in Wisconsin when I was a kid (50s and 60s). The roads seemed to always have packed snow on them. I lived in LaCrosse and we would sled down roads on the bluffs. They did spread sand. Which was no doubt more environmentally sound, but did not do a good job of clearing the ice and packed snow.