Although listed as an east–west route in Kentucky Transportation Cabinet route logs, KY 842 follows a north–south arc between its termini.

The northern terminus is at KY 236 in Erlanger.

KY 842 begins at an intersection with US 25 and Richardson Road, the unnumbered eastern continuation of KY 842, in Florence.

KY 841 heads west as Weaver Road, crossing Interstate 71 (I-71) and I-75 with no access.

Located along Houston Road are many different restaurants plus many large stores.