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Big Thunder Mountain Trains Begin Cycling at Magic Kingdom as New Permit Extends Refurbishment Effort

A new filing naming Coastal Steel points to continued work during late-stage testing ahead of an unannounced 2026 reopening.

Overview

  • On-site observations show refurbished trains cycling every 5–10 minutes with water-filled containers used to simulate rider weight.
  • Walt Disney Imagineering filed a Notice of Commencement listing Coastal Steel Inc. for general construction, the third permit tying the contractor to the project.
  • Disney has not set an official reopening date, with current guidance still indicating a 2026 return for the Frontierland coaster.
  • The overhaul includes a full track replacement for smoother operation plus updated show elements and effects.
  • Disney has teased a refreshed narrative and a Rainbow Caverns scene featuring phosphorescent pools and iridescent formations.