Here is a map of the city's long range transportation projects planned: https://docs.google.com/a/iastate.e...&sig=AHIEtbS3W7eQApI3XFh1VK__ULQGkBSfCg&pli=1
Looks like Grand may eventually go over 30, interesting didn't know that.
You can find a little more updated long range plan here (have to scroll through the pdf a ways to find the map), there are a few differences: City of Ames : Long Range Transportation Plan