| Junctions and other features | Running Lines | Stations, Signal Boxes and Junctions | Distance from Signal Box above | Loops and Refuge Sidings | Notes | ||
|---|---|---|---|---|---|---|---|
| Up | Down | ||||||
| 1 | ↕ | Sirhowy | – | CL 12 GL 25 |
|||
| 2 | ↕ | Tredegar No. 1 | 0m 1501yds | ||||
| 3 | ↕↕ | ↓ | Tredagar No. 2 | 0m 434yds | |||
| 4 | ↑ | ↓ | Bedwellty Pits | 1m 1050yds | |||
| 5 | ↑ | ↓ | Pochin Pits | 1m 247yds | |||
| 6 | ↑ | ↓ | Markham Village | 1m 759yds | |||
| 7 | ↑ | ↓ | Blackwood No. 1 | 2m 1490yds | |||
| 8 | ↑ | ↓ | Pontllanfraith H.L. Stn. | 1m 1386yds | |||
| 9 | ↑ | ↓ | Tredefar Junction Lower | 0m 775yds | |||
| 10 | ↑ | ↓ | Wyllie No. 1 | 0m 1457yds | |||
| 11 | ↑ | ↓ | Wyllie No. 2 | 0m 875yds | |||
| 12 | ↑ | ↓ | Nine Mile Point No. 1 | 1m 1694yds | |||
| 13 | ↑ | ↓ | Nine Mile Point No. 2 | 0m 708yds | |||
| 14 | ↑ | ↓ | Rock Vein Sidings | 0m 1342yds | |||
| 15 | ↑ | – | Risca Junction | 1m 1380yds | |||