The right lane, (lane1) from Cle Elum to Ellensburg can be rough because when they pinned the concrete sections to keep them from moving, they did not grind them smooth so you might see traffic trying to stay out of lane 1 and driving in lane 2 when they can. The distance is about 25 miles. Cars, pickups and suv's won't notice it as much as you will in Class A. Have a good trip.