| Route | Sudbrook Branch |
| Section | Caldicot to COM |
| Remarks | Understood to be disused |
| ELR Maps | Atlas , Interactive |
| Area Maps | Severn Tunnel |
| Extent | 146M 1295y to 147M 0228y • 0.394 miles • 0.634 km |
| Measured | 0.619 km (Δ -15m) |
| Grouping | SBK1 , SBK2 |
| Neighbours | BSW , CWT , SBK2 , SWM2 |
| NR Region | Wales & Western |
 | TRACKmaps Book 3 — Western & Wales |
🏢 Administrative Area
| Mileage | Country | Administrative Area |
|---|---|---|
| 146M 1295y to 147M 0228y | Wales | Monmouthshire |
📍 Nearest Place and District
| Mileage | Nearest Place | District / County | Distance |
|---|---|---|---|
| 146M 1295y to 146M 1440y | Caldicot | Monmouthshire | 1054m - 1130m |
| 146M 1441y to 147M 0228y | Portskewett | Monmouthshire | 687m - 1130m |
🏷️ Positional Accuracy Statistics
| Property | Count | Min | Max | Mean | Median | Std Dev |
|---|---|---|---|---|---|---|
| Linear Accuracy | 3 | -6m | -4m | -5m | -5m | 1m |
| Normalised Quarter Miles | 3 | 429y | 430y | 430y | 430y | 0y |
| Calibration Segment Length | 3 | 213y | 256y | 231y | 224y | 22y |