Dominic Mazoch posted:SP and now UP prefer not to, because of the expense.
It has absolutely NOTHING to do with expense! It has EVERYTHING to do with the fact that the rotary snow plow cuts a square canyon, and thus must then be used over and over. The specially modified Jordan Spreaders do a far better job of moving the heavy, wet snow, out of the way, with the assistance of the big "snow cats", which continue to shove the snow over the side of the mountain grade. The rotary plows are used only as a last resort, generally in the event of a big avalanche/slide.
