 The highway then passes through farmland before coming to its current end at a junction with US 31W/SR 41 near that route's junction with SR 259 just feet from the Kentucky state line.SR 109 is slated to be widened to a four-lane highway, with a middle 12' turn lane from Gallatin to I-40 in Lebanon, primarily for the increased level of traffic from the industrial park just off the Interstate.Plans are also underway for SR 109 to bypass downtown Portland and intersect with I-65.