The ongoing issue of making US 30 a full freeway between Ames and Nevada took another step last month. The Nevada City Council voted in favor of an interchange at Airport Road/W 18th Street/610th Avenue on the west side of town. (Story: Ames Tribune)
The cost of this exit will be closure of the S14 intersection by the railroad overpass and 6th Street (old IA 133) at 30. A diagonal overpass between the current intersections will connect the roads over 30. This will mean no direct access to downtown, with exits at either side 2.5 miles apart.
The overpass is scheduled for 2023, which will end those intersections, but the new interchange is not budgeted yet, which means the late 2020s at the earliest.