Michigan City's South Shore Line
alternatives analysis study is underway. To boil it down, the city's hope for this TIGER-funded study is essentially to identify a way to make the northern route work, without costing too much, so the destructive 11th street alternative does not have to be chosen.
These are the alternatives that have been identified so far. 3 or 3a seem to be the best to me: they have the fewest property impacts and involve no expensive bridge construction and no ugly and unnecessary elevated routes through downtown. The only question mark I can see here, is whether crossing over the Amtrak tracks at grade would be too disruptive. If not, then awesome. South Shore already crosses Amtrak at an at-grade diamond, after all.
But in order to have a grade separated crossing for Amtrak, but avoid elevated routes through the center of town and lots of property acquisition, how about
this (call it 3B): relocate the Amtrak line in a way so that it can cross the South Shore line on a bridge west of town. There are power lines near there but maybe it could be done. Of course this is all just from looking at Google Maps.