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A470 between Powys boundary and A4059, Powys (Grid ref SO000152) A4059 between Powys boundary and A470, Powys (Grid ref SN988181) A470 between A4059 and A4215, Powys (Grid ref SN986199) A470 between A4054 and Merthyr Tydfil boundary, Merthyr Tydfil (Grid ref SO020099) A4059 between C road (Penderyn) and Rhondda, Cynon, Taff boundary, Rhondda, Cynon, Taff (Grid ref SN950112) A470 between Merthyr Tydfil boundary and A4054, Merthyr Tydfil (Grid ref SO022089) A470 between Rhondda, Cynon, Taff boundary and Rhondda, Cynon, Taff boundary, Rhondda, Cynon, Taff (Grid ref SO022086) A4054 between A465 and A470, Merthyr Tydfil (Grid ref SO027084) A470 between A465 and Merthyr Tydfil boundary, Merthyr Tydfil (Grid ref SO024082) A465 between A470 and A4054, Merthyr Tydfil (Grid ref SO028079) A465 between B42776 Merthyr Road and Swansea Rd, Merthyr Tydfil (Grid ref SO010073) C, Merthyr Tydfil (Grid ref SO051089) A465 between Swansea Rd and A470, Merthyr Tydfil (Grid ref SO022074) U, Tai Mawr Road, Merthyr Tydfil (Grid ref SO029076) A4054 between A4102 W and A465, Merthyr Tydfil (Grid ref SO034078) A465 between A4054 and A4060, Merthyr Tydfil (Grid ref SO050086) A470 between A4102 N and A465, Merthyr Tydfil (Grid ref SO033073) A4059 between A465 and C-road west of Chapel Rd, Penderyn, Rhondda, Cynon, Taff (Grid ref SN951080) U, Pant Road, Merthyr Tydfil (Grid ref SO066088) U, Oak Road, Merthyr Tydfil (Grid ref SO048074)