That is quite a lane for a small tractor, and Nebraska is known to get some serious winter weather. A snowblower and/or some larger equipment may be in your future, but there are also some observations to be made. Here's some thoughts from a guy who no longer lives in snow country but grew up and plowed snow up north.
Just looking at your pictures (great looking place, by the way), you made your initial windrows on the upwind side just before the wind started and that set up the opportunity for drifting. Having seen where it drifts, try to remove snow the next time so your windrows and piles are on the prevailing downwind side and as far from the lane as possible. That may involve a lot of jockeying around with a small tractor and a blade. A snowblower is somewhat better because it can throw the snow away from your lane and you can aim it downwind and well out of the way. A 4x4 plow truck would be much quicker, but no matter what kind of equipment you have, leaving snow piles upwind of the road is an invitation for drifting. Snowfencing upwind of the places prone to drifting would also help.
Just looking at your pictures (great looking place, by the way), you made your initial windrows on the upwind side just before the wind started and that set up the opportunity for drifting. Having seen where it drifts, try to remove snow the next time so your windrows and piles are on the prevailing downwind side and as far from the lane as possible. That may involve a lot of jockeying around with a small tractor and a blade. A snowblower is somewhat better because it can throw the snow away from your lane and you can aim it downwind and well out of the way. A 4x4 plow truck would be much quicker, but no matter what kind of equipment you have, leaving snow piles upwind of the road is an invitation for drifting. Snowfencing upwind of the places prone to drifting would also help.