It's been a long time coming, but work will start this summer on a rebuilt I-35 and Highway 30 interchange at Ames. No Highway 30 west access from I-35 southbound through the summer, but access is supposed to be reopened for fall semester and football season. Will be cool to watch this new interchange take shape.
http://www.inside.iastate.edu/article/2017/04/13/road
http://www.inside.iastate.edu/article/2017/04/13/road