About 3 miles (4.8 km) afterward, it meets its first intersection with KY 1827, which starts near Nolin Lake State Park.

It then runs concurrently with KY 1827 for a few miles; they split after the intersection with Ollie Road, which goes to the Houchin's Ferry.

KY 728 continues into the northwestern part of Hart County, and then makes a right turn to the east to meet U.S. Route 31W (US 31W) in Bonnieville.

When construction of Nolin Dam began construction in 1962, officials in Edmonson County, including those of that county's Board of Education, have urged the state highway department (known today as the Kentucky Transportation Cabinet) to build a state-maintained highway over the dam to connect the Lincoln/Ollie area to KY 65 (now KY 259) in the Bee Spring area; construction of that roadway began by mid-1963.

[8] This event also coincided with the KY 1827 designation being assigned to become a supplemental, alternative southern route between Lincoln and Cub Run.