As work continues at the TRON Lightcycle Run construction site, crews are working on creating the tunnel that will support the Walt Disney World Railroad passing under the attraction.

In early pieces of concept art, the entrance looked much different than the final product that will be installed. As you can see on the left of the image below, the Walt Disney World Railroad was planned to pass under a different portion of the attraction than the final plans would call for.

It’s possible that concerns over steam from the train or other factors led to updated concept art revealing a tunnel that will house the train as it passes under the full length of the attraction. Here’s the updated concept art.

In a recent visit to Magic Kingdom, we took a closer look at the construction progress of the tunnel. As you can see in the photos below, crews are working on the floor of the tunnel as well as defining the envelope of the tunnel.

In this wide photo, we can see the entrance walkway for the attraction taking shape to the left, and the tunnel taking shape in the middle of the image. The railroad path will run from the middle of the image past where the porta-potties are in the lower right of the image before passing under the Tomorrowland PeopleMover.

Here’s a closer look at the work taking place.

Disney has not announced an opening date, season, or year for TRON Lightcycle Run.

As always, keep checking back with us here at BlogMickey.com as we continue to bring you the latest news, photos, and info from around the Disney Parks!