 Power Plant Parkway continues south as an unnumbered boulevard through an interchange with I-664 (Hampton Roads Beltway); the west leg of the intersection is Briarfield Road.SR 415 heads east as a four-lane undivided highway, with intermittent center left turn lane, past Hampton High School and under I-664.The state highway has a grade crossing of the Hampton Branch of CSX's Peninsula Subdivision immediately before its eastern terminus at SR 351 (Pembroke Road).