Blowing snow can foul up the road pretty quickly. We've been lucky this winter that for the most part the road hasn't drifted up to be impassable beyond what a shovel can clear.
But for some reason we have had the front gate drift in deep a few times. The wind is always a little different, so it is hard to predict the drifting pattern every time.
Last winter there were a couple of bad storms that required some serious digging out with a tractor