The US army in action! Probably more the engineers or railway division if they still have one.
Here is a photo of the new spur being built they even had an armed guard watching ! The 44 tonner seems to have a hopper of ballast ready. If I had triple the space I would have kept all these scenes and models but I'm grateful for what I have so i live with smashing down things after a couple of years not any more though the Steel mill is the last great project for me that's for sure! I still have lots to build, not dead yet. I have "retired" from magazine articles can't do everything age (and the grandkids) do slow you down a little bit. Anyway it's fun. Roo.