 Highways pass under I-664, then turn east to remain on South Military Highway at its intersection with West Military Highway; South Military Highway immediately has an at-grade crossing of the Portsmouth Subdivision rail line.US 460 and US 13 head east along four-lane divided Military Highway, which receives a ramp from southbound I-664.The highways curve southeast and cross over an old railroad grade, then veer back east and meet I-64 (Hampton Roads Beltway) at a diamond interchange.