I am new to these forums, so if this is not the proper place to direct this question, please let me know how to do so.
I am riding the TransAm now, westbound, and noted this detour. I am using the BC-1542-07 version of the Section 11 map, and was surprised to see that this detour is not on the route that my map shows. In comparing with another rider, it looks like the route was changed at Vincent, KY between 2007 and 2009, and now runs south and uses US 421 instead of SR 399, SR 587, CR 1209, etc.
How can I find out:
a) why the route changed?
b) how I would be made aware of such a fundamental change (I don't see it in the addenda for either the 07 or 09 map)?
c) would the old route be a viable way to go now to get around this detour?
Again, if there is a better place to be asking these questions, please let me know, but they got generated by your helpful detour report here.