I don't believe that thats a single facility.... I think thats a concrete pad, a few individual Fuel Stands, and several Sand Towers plunked down evenly on top of each other with "Rails only" laid through the Concrete. Not sure though. I think Dermmy's Clovis sub had a similar set up, so maybe it is a single asset? /shrug.
Whether it is or not though, you could always create it with the assets I mentioned above anyway. Lord knows route builders have to do that often enough anyway.....
Falcus
edit: lol, beat me to it Chomz!