A-Best: You should be fine getting off at US231 and coming through Shelbyville. The interstate backup is only on Thursday anyway. Tullahoma had major traffic problems only the first two years of Bonnaroo. The last few years, the 18-wheelers don't even bother coming through since the THP and TDOT figured out how to deal with the traffic.
ADD ***** Was just checking the TDOT website, and they indicate the contingent plans for detours are from the Beechgrove exit south to the Winchester exit. You will be fine coming US231.
