Sep 14th confirmed for 'substantial completion' with 2 lanes open each way on weekends to accommodate Labor Day and game next weekend. Basically 9 more days of major work and lane closures. Hang in there. I drove the route today for first time in months and easily looks like 2 weeks is realistic.
Remember 'substantial completion' means 2 lanes open in each direction and interchanges open while smaller work continues through rest of year but delays should be minimal.
As for 67 it will not be terrible with the extra traffic once section 6 starts. One can also go 39 to 70 which has no traffic and only adds about 5 minutes or 67 to 267 to 70 which adds also 5 minutes if 67 gets backed up during peak hours.
Section 6 will be annoying but if anything thinks it will cause more than 5-10 minutes delays using the routes above you're just paranoid. It will be nothing like section 5 where you either had to go 30 minutes out of way through Spencer or Nashville or sit in traffic for over 30 minutes.
The days of major delays driving to games are over.
