 The first state-maintained highway that used a section of the current roadway was (SSH 1E), which was established in 1937 during the creation of the Primary and secondary highways; SSH 1E ran from an intersection with (PSH 1) in Conway south to what would become in 1945 in Stanwood (then called East Stanwood) and east past PSH 1 again to in Arlington.SSH 1E was later extended in 1957 past SSH 1A in Arlington to the Mountain Loop Highway in Darrington, which had been finished by late 1941.During the 1964 highway renumbering, SSH 1E became SR 530, SSH 1A became and SSH 1Y became ; from 1964 until 1983, SR 530 was long.