Last update 1 June 2026
Mileages are given in the form miles.chains unless stated otherwise. Figures prefixed with ≈ are approximate, those in parentheses are not on this route but are given for reference. Reference to 'start'/'end' of an asset are as read down the page.
2.11 Red Hill Junction with HDC (2.11) and HNL2 (151.65) 5.37 TRAM INN 7.70 ST DEVEREUX 11.15 junction with GVB (0.11) 11.24 PONTRILAS 16.33 PANDY 18.62 LLANVIHANGEL MON formerly LLANFIHANGEL; LLANVIHANGEL 21.61 ABERGAVENNY JUNCTION [2] 21.64 Abergavenny Junction with MTA (0.00) 22.06 ABERGAVENNY JUNCTION [1] 22.63 ABERGAVENNY formerly A.; A. MONMOUTH ROAD 25.39 PENPERGWM 25.79 start of River Usk viaduct 26.04 end of River Usk viaduct LLANVAIR 28.06 NANTYDERRY 30.47 LITTLE MILL JUNCTION formerly L. M. 30.56 Little Mill Junction with ROS (29.30) 32.19 PONTYPOOL & NEW INN formerly PONTYPOOL ROAD; P. 32.39 PONTYPOOL ROAD formerly NEWPORT R. 32.43 Taff Vale Extension Junction with VON (0.00) 32.47 Panteg Goods Lines Junction with PGL 32.57 Pontypool Road East Junction with PEJ 32.76 Pontypool viaduct 33.50 PANTEG & GRIFFITHSTOWN formerly P. 33.59 Panteg Junction with PGL (33.64) 34.77 LOWER PONTNEWYDD formerly P. 35.13 CWMBRAN 36.24 Llantarnam Junction with CMB (0.00) 36.58 LLANTARNAM 37.78 PONTHIR 39.41 CAERLEON 40.47 start of St Julians River Bridge viaduct 40.54 end of St Julians River Bridge viaduct 41.34 Maindee Junction North with MAI 41.66 Maindee Junction West with SWM2 (158.16)