Secondary State Highway 3D (SSH 3D) was added in 1937, during the creation of the Primary State Highway system. The original route started at US 410 in Touchet and went north to Eureka and east to SSH 3E west of Prescott. The highway connecting Burbank to SSH 3D was a toll road built by the 1930s. Later in 1951, SSH 3D was moved to a route from US 410 in Burbank to SSH 3E, the current route of SR 124 and in 1965, the route from Burbank to Ice Harbor Road was designated the Ice Harbor Drive. SSH 3E was also added in 1937 and went from US 410 in Walla Walla north to SSH 3D and east past Prescott to Waitsburg. SSH 3E became SR 125 from Walla Walla to SSH 3D and SR 124 from SSH 3D to Waitsburg.