Next Tuesday, the DOT will hold a meeting in Ames about closing off intersections on US 30 just east of I-35 in favor of an interchange. Substantial lengths of frontage road will have to be built in order to serve existing locations.
The large map (PDF) shows an interchange at 580th Avenue, otherwise known as County Road R70. It’s mislabeled as 580th Street on the smaller handout. This project would close 590th Avenue at Vetter Equipment Company, something the Story County supervisors opposed two years ago. Traffic from the west heading to Vetter would have to go past it, take the new exit, and come back east on the new road a quarter-mile north. This project would not affect at-grade intersections closer to Nevada.