In 1952 US 70 was placed on new bypasses in Lexington, Thomasville, and Durham; all former alignments became individual or extensions of existing US 70A. By 1953, US 70 was rerouted back onto Fulton Street and Liberty Street in Salisbury, US 70 was split on one-way streets in downtown Greensboro, and US 70 was rerouted onto Eden and Front Streets in New Bern. In 1954 US 70 was rerouted onto Woodfin Street in Asheville; placed on its modern alignment between Black Mountain and Old Fort, leaving behind Mill Creek Road (SR 1407)/Old US 70 (SR 1400), placed on one-way streets in downtown Raleigh, and rerouted on a more direct route between Smithfield and Princeton along existing secondary roads, leaving behind US 70A through Selma. Around 1956 US 70 was placed on new bypass south of Morganton. By 1957, US 70 was split on one-way streets in downtown Marion, replaced US 70A in Salisbury, leaving the downtown area, and placed on its modern alignment in western Rowan County. It was placed on its modern alignment from Thomasville to Greensboro, then continued east on freeway to Efland, its old alignment becoming US 70A; it was placed on new bypass east of Durham, its former alignment along Avondale Drive, Greer Street, and Miami Boulevard becoming parts of NC 55, NC 98, and US 70A respectively. It was placed on bypass north Goldsboro, leaving behind US 70A through the downtown area, and placed on bypass south of Kinston, also leaving behind US 70A through its downtown area. Around 1958 US 70 was removed from Ann Street to its current routing along Cedar Street in Beaufort. In 1960 US 25/US 70 was placed on new bypass north of Marshall, leaving behind US 25 Bus./US 70 Bus.