The piece south of Abingdon became State Route 77, and, later that year, the final 0.14 miles (0.23 km) to the Tennessee state line were added. In the 1940 renumbering, SR 77 was renumbered State Route 75, as Virginia expected Tennessee to renumber its State Route 44 to match, but this never happened.
The southern portion of Abingdon became State Route 77, and later that year, the final 0.23 kilometers were added to connect it to the Tennessee state line. During the 1940 renumbering, SR 77 was changed to State Route 75, but this change wasn't adopted by Tennessee.