US-2 Westbound in WA - Stevens Pass Summit to Seattle

We run 2 most all the times we go east and back we have no problems with the road, it is 2 lane from the bottom of the down grade to Monroe Wa. Truckers use it, I see no problems for you, slow down and enjoy the view. The up side from Levenworth to the pass is the worst of the trip.
Highway 2 a crossed the north is the way we like to go when we go to New England, the small towns along the way supply the stops you need to make and most have great camp grounds.