Building a new bridge would cost about half as much as repairing the historic structure.
A semi weighing at least five times the posted weight limit caused the bridge to collapse.
The first touched down near Elizabeth in Harrison County, and the second twister landed near West Baden Springs in Orange County.
Paoli has begun the rebuilding process from a fire eight months ago.
All weekend bikers will be riding to Bloomington, Bedford, Brown County and the Boogie.
After a $90 million renovation and 75 years of being shuttered, the West Baden Springs Hotel in Orange County reopened Wednesday.