| Junctions and other features | Running Lines | Stations, Signal Boxes and Junctions | Distance from Signal Box above | Loops and Refuge Sidings | Notes | ||
|---|---|---|---|---|---|---|---|
| Up | Down | ||||||
| 1 | - | ↓ | Clarbeston Road Stn. | - | |||
| 2 | ↑ | ↓ | Haverfordwest Station | 4m 1611yds | UGL 43 DGL 63 |
||
| 3 | ↑ | ↓ | Haverfordwest Bridge West | 0m 775yds | |||
| 4 | ↑ | ↕ | Johnston (Pem.) Stn. | 4m 715yds | |||
| 5 | ↕ | Neyland Station | 3m 1600yds | c. 15.06.1964 | |||