I-75 southbound lane closure
The TN DOT website so kindly linked by AZBuck shows no traffic congestion on I-75 at this particular moment. Frankly, I don't believe it. I-75 is a very heavily traveled section of Interstate and taking it down to 1 lane southbound at a point not far north of Knoxville is likely to create significant backups at most any time of day or night. Perhaps some additional review and searching about that situation will determine if my skepticism is well-founded or not.
I know this for certain: If I were planning a trip and had a reasonable alternative route avoiding this, I'd take it.
Foy