Where Route 46 and the interstate come together, Mount Olive spreads out into wide pavement — lots, aprons and long approaches that all have to be open by the time the first shift arrives. George J. Keller & Sons LLC plows that kind of ground, and the smaller drives too, pushing snow back to the edges and treating the ice that shows up after a thaw. A storm here is rarely a single visit; it is a rotation, back through the night, staying ahead of the accumulation instead of digging out from under it. By sunrise the painted stripes are readable again and the day proceeds as though nothing had happened at all. In this trade, going unnoticed is the point.