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A478 between A477 and A4115, Pembrokeshire (Grid ref SN114100) A478 between A4218 Serpentine Rd and A477(T), Pembrokeshire (Grid ref SN114048) A478 between A4115 and A40(T), Pembrokeshire (Grid ref SN117149) A478 between A40 and Pembrokeshire boundary, Pembrokeshire (Grid ref SN118175) A478 between Pembrokeshire boundary and Pembrokeshire boundary, Pembrokeshire (Grid ref SN121203) A478 between Pembrokeshire boundary and Pembrokeshire boundary, Pembrokeshire (Grid ref SN121220) A478 between A40(T) and Pembrokeshire boundary, Pembrokeshire (Grid ref SN125228) A478 between A4139 White Lion St and A4218 Serpentine Rd, Pembrokeshire (Grid ref SN130010) A478 between Carmarthenshire boundary and Glandy Cross, Carmarthenshire (Grid ref SN133250) A478 between Carmarthenshire boundary and LA Boundry, Carmarthenshire (Grid ref SN152274) A478 between Glandy Cross and Carmarthenshire boundary, Carmarthenshire (Grid ref SN156276) A478 between Pembrokeshire boundary and B4332E, Pembrokeshire (Grid ref SN176300) A478 between Ceredigion boundary and A487, Ceredigion (Grid ref SN180443) A478 between B4332E and Pembrokeshire boundary, Pembrokeshire (Grid ref SN190401)