Back to the pedestrian use of the older 41 span. I don't see enough of a potential use to justify this. Unlike Louisville or Cincinnati, where you have urban areas immediately on the banks opposite of each other, US 41 traverses several miles of uninhabitable river bottoms between Evansville and Henderson. You can take a leisurely stroll between Jeffersonville and Louisville, this would take planned hike. Even if you provided parking at Ellis Park, you would still have to go a considerable distance on the KY side to provide parking, somewhere near Audubon Park. With the remoteness and light use, I think you would run into the same problems St. Louis has with the Chain of Rocks Bridge...cars being broken into, and actual robberies on the bridge.
With lighter use, I think both spans can continue to serve vehicular traffic.
Regarding Bruce Ugethiem, he is completely out of his mind if he thinks Owensboro will allow tolling on the Blue Bridge, or Brookport-Paducah will go with it on the steel-bottomed US 45 span.