I'll cover Kentucky. I recently drove up to a Reds game, so I covered about 80% of the state's portion of I-75 in this trip. There were no major construction areas going on. Keep in mind that there is a statewide initiative to 6-lane any portions of I-75 that are still 4-lane. But all that involves, and only in 5 or 6 mile stretches here and there in northern and extreme southern Kentucky, is those concrete barricades, narrow shoulders and a speed limit reduction to 55. However, when I drove up to Cincy the other day, I'm not sure we can across any areas where the barricades were up. If there's any 6-laning going on, it's probably still in the rock removal phase along the sides of the road, which shouldn't affect traffic at all. 511 in Kentucky is VERY good at giving construction information, and even accident information if one is major enough to close lanes for more than 15 minutes or so.
Two places that always frustrate me about I-75 in Tennessee are Knoxville and Chattanooga. No offense to Tennesseans, but it just seems like there are constant construction barricades, etc. in those two cities. I hope they've completed some of this for our upcoming trip in October.
