In the 1960s and 1970s, the growing Interstate Highway System brought in toll-free segments of newly built I-77 from Ohio to the north, and Virginia to the south ends of the turnpike. I-64 was completed from the Kentucky border east to Charleston.
The expansion of the Interstate Highway System during the 1960s and 1970s included toll-free segments for I-77 in Ohio and Virginia, as well as the completion of I-64 from its Kentucky border to Charleston.