Last update 13 March 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 0.00 Cardiff East Junction with SWM2 (170.18) 0.13 ownership boundary NR/TfW from 28 March 2020 0.22 Queen Street South Junction with CAM (0.67) Original measure 0.22 Cardiff East Junction with SWM2 (170.18) 0.44 Queen Street South Junction with CAM (0.67)