i think the really interesting part is, the thousands of gallons of oil and grease on the ground. back when i first started on the railroad, all loco facilities were like, giant lakes of oil and diesel. i wonder what some core samples of the ground in that area would show? i threw away more than one pair of pants, and even boots, that became covered in "crater", the gearbox lube that leaked and collected everywhere around engine tracks.
the building would have a hopper spotted inside, and it would have the outlet connected to a pan, that was emptied by air, to blow the sand to the tower, that was gravity fed to the locos. storage hoppers inside the building could store and dry sand, if needed. oak island used the same system, but the hopper wasn't inside of a building, it was spotted next to the sand tower, at 91 bay st.