 Auburn Boulevard road was also known as part of both the Lincoln Highway and the Victory Highway during the period from 1915 until the late 1920s when the custom of named interstate highways gave way to the convention of numbered highways in the U.S. Highway System.It served as U.S. 40 in North Sacramento until the completion of the North Sacramento Freeway in the early 1950s, and that section was redesignated Business Route U.S. 40 until the mid-1960s.The section of Auburn Boulevard east of Howe Avenue continued to carry U.S. 40 until the completion of the Roseville Freeway in 1959.