It then travels south to first a diamond interchange with SR 690 (Future I-69) and then an intersection with US 51/SR 3/SR 22 just north of Union City.

It then travels concurrently with SR 5 (now along South 1st Street) to intersect US 45W/SR 184/SR 431 in southern Union City.

It then travels south along US 45W/SR 5, leaving Union City and intersecting SR 216 along the way.

It then leaves Troy, still going west, and enters Hornbeak and has an intersection with SR 183.

It continues west to just south of Samburg, to intersect and run concurrently with SR 22, where it becomes a primary highway.