Belgium narrow gauge lines under construction or being extended. Active build and restoration projects across the narrow gauge rail network.
Belgium narrow gauge lines currently under active construction: extensions to existing heritage and tourist railways, new mountain or scenic lines and industrial narrow gauge projects. Shows where the narrow gauge rail network is actively growing.
Belgium currently has 261 railway segments under construction including 100 railway, 101 tram, 1 metro and 59 light rail.
Last update: 2026-07-24