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The Three Tier Bridge (Also known as the Old Steel Bridge) is a single-track girder bridge, introduced in the third series. It is located on Duck's Branch Line.

It first appeared in the third season and was seen regularly after the seventh series, returning in CGI in Hero of the Rails. It made its final appearance in the fifteenth series episode, Percy's New Friends.



  • The three-tier bridge went through multiple aesthetic changes throughout the series:
    • Series 7:
      • The bridge is now painted a rusty brown rather than green.
      • The stone pillars at the ends of the bridge are replaced with stone embankments.
      • Railings are added along the inside edges of the bridge.
    • Series 11:
      • The river beneath the bridge is replaced with forest.
      • The stone pillars are replaced with steel supports.
    • Hero of the Rails:
      • The bridge returns to its former green colour.

* RWS only | ** T&F only | --- Dropped
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