 After exiting Meraux, LA 39 continues parallel to the Mississippi River and shortly merges with LA 46 near Poydras.At the two highways' merging, LA 39 becomes a two lane, undivided road.It runs due west and then southward along the east bank of the Mississippi River into Plaquemines Parish and passes through Pointe à la Hache before reaching a dead end at the Bohemia Spillway Levee.