Last update 5 September 2023
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.
Later measure 208.27 Neath Loop Junction with SWM2 208.48 Neath A viaduct 208.71 Neath Junction with VON (40.68) Earlier measure 40.68 Neath Junction with VON 41.09 Neath A viaduct 41.32 Neath Loop Junction with SWM2 (208.27)