California Narrow Gauge Under Construction — Active Builds and Heritage Line Restorations

California narrow gauge lines under construction or being extended. Active build and restoration projects across the narrow gauge rail network.

California 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.

California currently has 406 railway segments under construction including 364 railway, 26 tram and 16 metro.

  • California — Narrow Gauge Map
  • California — Narrow Gauge Under Construction
  • California — Proposed Narrow Gauge Lines
  • California — Narrow Gauge Stations Map
  • California — Narrow Gauge Speed Map
Under Construction
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Last update: 2026-04-27

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