[TheRealVille]

Made a fly-by the tower but nobody was home again. Steel super structures don't do well set up on the dirt. Neither do pump bases, tanks, pipe racks or little metal buildings for that matter.

I guess carpenters or masons poured some concrete for the steel and pumps, and buildings, but I digress. The majority of work is fitter work on these. That's why there were several of the other crafts, and several hundreds of fitters.