^ I'm confused. The US 30 mainline sign at the end of the exit ramp you mention seems to be at exit 345, not exit 342, which would suggest that US 30 leaves I-84 at exit 345. Also, there's
this set of signs, indicating that US 30 westbound returns to I-84 at exit 345, rather than in Lime (exit 342).
The difference affects my coast-to-coast US 30 clinch, as my travels include what the HB has as Business US 30 (Huntington) only east of exit 345, not between 342 and 345.