I would not recommend those roads for large RV's. It has been awhile since I had my 38 foot Endeavor in that area due to my experience on my last trip there. I was in Maggie Valley and there was a huge rock slide that closed I-40S so I was forced to go South to get back to I-40S. Travelling through the Park to Gatlinburg was not an option for me. We had 2 coaches travelling together, so, my buddy and I studied the atlas carefully and picked our route to get us down to Cleveland, TN where we could get on I-75S. The roads where in good shape; however, traffic was much heavier than expected. I don't recall any issues with the grades; but, the roads are very crooked with a lot of blind hair pin turns. You are hanging close to the center line with the nose and the center to rear is very close to the mountain. Then, suddenly from out of nowhere you could be face to face with a tanker truck with the trailer tires in your lane. HOLY...., nowhere to go; nowhere to hide!! Brakes on heavy by both of us. When we stopped, his trailer was less than an inch from my mirror and my coach was so close to the mountain that I couldn't open the door and of course no backing up for me. We just sat there for a few minutes to collect ourselves before making any moves. As I have stated before, traffic was much heavier than expected. The truck can't back-up because of a line of cars behind him.
All ended well but NOT forgotten!!!
johjim397
02 Endeavor