The highway doesn't go through the city, it goes around it, even the interstate. Within the Bloomington city limits themselves, I wouldn't expect much work to be done except for building the bridges on the exisiting crossings of 37 and keeping the exits themselves. Back when the 37 bypass was built that was mostly country, the fact there there is now housing developments and strip malls along 37 (especially at 3rd Street) is evidently because B-Town isn't as committed to combating sprawl as they are to stopping highways. They hate building interstates through farmland and forest but have no problem with building strip malls and housing developments there? Though in the spirit of what's been said here so far, keep the routing and keep the exisiting interchanges, but build tollbooths at each of the exit ramps, and please don't nuke it (I'd hate to see Brown County get nuclear radiation.)