In 1961 US 70 was removed from Woodfin Street and onto the East–West Freeway in Asheville; in Salisbury, US 70 was rerouted following Innis Street south to I-85, then continued north in concurrency into Davidson County. In 1963 US 70 was rerouted back along its former alignment between Greensboro and Efland, replacing part of US 70A; the former freeway alignment remains part of I-85. Around 1964 US 70 was placed on new causeway over the Newport River/Intracoastal Waterway; bridges on the old alignment were removed, leaving Old Causeway Road (SR 1205) on Radio Island. Around 1965 US 70 was removed from I-85 in Rowan County, rerouted through downtown Salisbury on one-way streets, then north along Main Street in concurrency with US 29. In 1967 US 70 was rerouted onto O. Henry Boulevard to Wendover Avenue in Greensboro; its old alignment along Market Street was downgraded to secondary roads. In the same year, US 70 was adjusted at the Salisbury and Wilmington Street split. By 1968, US 70 was placed on a new bypass west of Newport, leaving behind Chatham Street (SR 1247). In 1969 US 70 was placed on a new bypass south of La Grange, leaving behind Washington Street (SR 1603). In 1970 US 70 eastbound was removed from Main Street and onto Logan Street in Marion. In the same year, US 70 was placed on a new bypass north of Princeton, leaving behind Dr. Donnie H. Jones Jr. Boulevard (SR 2556).