 The route then continues southeast into Greenville where it becomes a multilane expressway just northwest of the village.The highway intersects WIS 76 in Greenville then continues southeast for one mile (1.6 km) before turning east at the junction with CTH CB.WIS 15 then junctions with US 41 where it ends and Northland Ave and CTH OO begins in the town of Grand Chute, just northwest of Appleton.