This line was a connection between the works of Terres-Rouges (south west of Esch-sur-Alzette) and the works of Belval (west of Esch-sur-Alzette). On the location where the CFL railway viaduct of the line Esch-Pétange in Esch-sur-Alzette ends and the line comes to normal gound level, we can still see the large viaduct leading over the Route de Belval and over the CFL railway lines. The viaduct is no longer in use.
The line was closed in 1972 when the factories of Terre Rouge were closed.
| Length | : | 1,3 km |
| Opened | : | 1927 |
| Track width | : | 1435 mm |
| Electrified | : | Yes |
| Voltage | : | 600 V = |
| Closed | : | 1972 |