Ralph! That is serious! Didn't Superior completely freeze last winter? Or something along the lines of freezing a lot more than usual? I have no idea what our codes are, but I know we don't get frost that deep. At least not on the front range. We really don't see as much snow and cold as the mountains do. Winters are usually tolerable here. My brother moved to Maine last spring... I think he is more than shocked. Today we have about a foot and a half of snow, and it is currently 10 degrees, still snowing. But, likely in the next couple of days it will mostly melt off.