United States Monorail Lines Under Construction — Active Extensions and New Monorail Routes

United States monorail lines currently under construction. Active extensions, new monorail routes and network expansion projects.

United States monorail lines currently under active construction: new systems in cities or airports without an existing monorail, extensions to serve new terminals or development areas and upgrades to existing routes. Monorail construction is often chosen for elevated urban transit where surface space is limited and full metro tunnelling is cost-prohibitive.

United States currently has 698 railway segments under construction including 554 railway, 15 tram, 21 metro and 108 light rail.

  • United States — Monorail Map
  • United States — Monorail Under Construction
  • United States — Proposed Monorail Lines
  • United States — Monorail Stations Map
  • United States — Monorail Speed Map
Under Construction
Other lines
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Last update: 2026-05-28

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🇺🇸United States
Motorways
🚝Monorail
Under Construction
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🇺🇸United States – Monorail Under Construction Map

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