You've got me wonering just what the heck the purpose of this particular piping structure is... But I do think the shot is too "clean" to rate very high on the "grunge" scale. Definitely mind-boggling, though!
Great shape and I do like the processing. You showed the metal pipe well with the reflected light enhancing the shine. The clouds were really over sharpened here as there appears to be some jpg artifacting. They look a little unnatural as I have never seen clouds so jagged before. Keeping the sky masked in your sharpening process could have helped.