North of the city, out toward Rives Junction and Tompkins, a clipper can cross in an hour and leave the section roads striped with drift. R-n-D Dirtworks, LLC runs those long farm lanes when it happens, pushing wide, stacking the banks well back so the next storm has somewhere to go, keeping the turnaround at the barn open. Driveways in town get the same treatment at smaller scale, with a shovel for the stoop and salt for the walk. The measure of a night's work is simple: whether the truck, the bus and the mail can all get where they were going. Some mornings that is the most useful thing anybody does.