Kentucky State Route 717 is a north-south highway in Eastern Boone County. It runs from Kentucky Secondary State Route 1017, near Florence, to the Boone/Kenton County Line, near Erlanger. KY St Rt 717 passes through the following town in Boone County. Florence KY St Rt 717 is multi-plexed in Boone County. Kentucky Secondary State Route 1017, near Florence. KY St Rt 717 intersects the following highways in Boone County. Kentucky State Route 842, at Florence.