That happened when a trailer came loose from a semi that had a locomotive on it. It crashed into the overpass pillars and took a couple of them out.

The local news says that you can still go straight through on 74 east or west, although I haven't been through there to confirm it yet. If it is true, then take 74 east to 75 south to Union exit for Florence, KY. You can take the Indiana route 1 exit from 74 to get to Lawrenceburg