 A trail used by Coast Salish peoples had existed between modern-day Marysville and Lake Stevens by the 19th century.When the Primary and Secondary Highways were created in 1937, the route of SR 528 became the Marysville branch of Primary State Highway 1.The highway ran from PSH 1 in Marysville to Secondary State Highway 1A (SSH 1A), although the road was not constructed at the time.