On every trip from Nashville (at least 8+ trips) we go through Atlanta and inevitably hit terrible traffic and constuction which turns a 10 hour trip into a 12 or 13 hour trip. I have been doing research about heading south through Alabama, however there is about 100 miles of the trip which would not be interstate (I think it is a 4 lane road, but I do not know the speed limit). Has anyone from AL or TN done this trip? Is it worth going through that 100 miles through Dothan to avoid Atlanta, Monteagle and Chattanooga? Thanks