- A488 between A44 and C road Tan Ho, Powys (Grid ref SO150666)
- A488 between C road Tan Ho and B4356 N, Powys (Grid ref SO200681)
- A488 between B4536 N and A4113, Powys (Grid ref SO242699)
- A488 between A4113 Bridge St and Powys boundary, Powys (Grid ref SO287722)
- A488 between Shropshire boundary and A489, Shropshire (Grid ref SO298834)
- A488 between Powys boundary and Powys boundary, Powys (Grid ref SO326953)
- A488 between A489 and Shropshire boundary, Shropshire (Grid ref SO328930)
- A488 between A489 and A489, Shropshire (Grid ref SO334915)
- A488 between Shropshire boundary and A5(T), Shropshire (Grid ref SJ365029)
- A488 between A5(T) and Bank Farm Rd, Shropshire (Grid ref SJ464110)
- A488 between Bank Farm Rd and B4380, Shropshire (Grid ref SJ475120)
- A488 between B4380 and A458, Shropshire (Grid ref SJ480123)