Indiana State Route 109 is a north-south highway in the southwestern corner of Henry County. IN St Rt 109 passes through the Henry County. Maple Valley Knightstown IN St Rt 109 is not multi-plexed in Henry County. IN St Rt 109 intersects the following highays in Henry County. Interstate 70, near Knightstown. U.S. Rt. 40, at Knightstown. Indiana State Route 140, at Knightstown.
