 This elevated urban expressway with grade-level service roads connects to New Orleans on the east bank of the Mississippi River, as well the nearby west bank cities of Gretna and Westwego.LA 45 continues a short distance further to a T-intersection with LA 18 at 4th Street, a few blocks short of reaching the River Road.LA 45 is classified by the Louisiana Department of Transportation and Development (La DOTD) as a rural major collector between Lafitte and Crown Point.