I live in Newnan and HATE the road construction on I-85. DOT put up the concrete barriers on the right side and there is no shoulder for a few miles at a time. It is going to be going on for years.
C - coming from your house, I'd take I-285 and avoid d-town!
Oh wait..I was thinking you wanted 85, lol.
I work at the corner of I-20/285 east side. Heading west Exiting on I-75 South isn't that bad on my side but the other side is always bumper to bumper .
I'd put this link to the Ga DOT/Navigator site on your PDA or cell phone
http://www.georgia-navigator.com/ look on the left had side MyGaNAV