JACKSON HIGHWAY, an American thoroughfare begin ning at Chicago, Ill., and ending at New Orleans, La. It is 1,060 m. in length and is mostly paved from Chicago to Florence, Ala., where it crosses the Tennessee river at Muscle Shoals, the site of the great dam of that name. It passes Indianapolis, Nashville, Columbus, Macon, Meridian, Hat tiesburg and Slidell and enters New Orleans over the concrete bridge at Lake Pontchartrain.