Sliding railway section into place - GIF

[Altair]

Sliding railway section into place.




Previously:

Transporting new rail down the line - GIF
Fixing buckled train track - GIF
Railroad track laying machine - GIF
Rail repair with thermite welding - GIFs
Railroad multi-maintenance heavy equipment - GIF, video, photos

[ductape]

I can't think of any reason to go to all the trouble of doing this, unless it is a replacement for a section of track that couldn't be out of service for more than maybe a day.
It's good to see insulation on those excavators. Accidentally touching one of those overhead lines without it would not be a good thing for anyone on the site.