The Big Dipper

The Big Dipper is a large viaduct made of stone. Diesel 10 fell into the river below after failing to jump the gap when in pursuit of Thomas and Lady. Thomas helped destroy the Big Dipper by weighing down the bridge pieces. It is unknown if it was repaired afterwards.

Trivia

 * The bridge was only called "The Big Dipper" in the original Thomas and the Magic Railroad script.
 * It was only seen in Thomas and the Magic Railroad.
 * The Big Dipper has two sets of track on it.
 * The middle of the viaduct was the largest arch.