Hackenbeck Tunnel (T&F)/Behind the Scenes

Background Information
Hackenbeck Tunnel is a fictional tunnel near Hackenbeck on the Island of Sodor created by the Rev. W. Awdry.

Hackenbeck Tunnel first appeared in the first series episode Thomas and the Guard, which first aired in 1984. Its last appearance was in the twenty-first series episode Terence Breaks the Ice, which was released in 2017.

Gauge 1 models
Hackenbeck Tunnel was first built for the first series of the television series. It exclusively appeared as stock footage during the second series.

CGI model
In 2009, the series introduced Computer-Generated Imagery (CGI) as a replacement for the show's long-standing live-action models. Hackenbeck Tunnel was recreated from scratch in CGI by Jam Filled Toronto. The model was "hand-sculpted" in Maya, a 3D animation and modelling software.

The model was reused from Crosby Tunnel seen in the previous series, resulting in the tunnel being double-tracked and having a different architectural design.