 Around 1980, a section of the route between Crown Point and Estelle was bypassed for through traffic in favor of the newly constructed LA 3134 (Leo Kerner/Lafitte Parkway, originally Lafitte-Larose Highway).In the future, most of this mileage is proposed to be eliminated from the state highway system by the Louisiana Department of Transportation and Development (La DOTD).From the south, LA 45 begins at a dead end at the east bank of Bayou Barataria in the unincorporated community of Lafitte.