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CNN Money has a really interesting piece on the $4.5 billion budget of the first mile-and-a-half segment of New York City’s Second Avenue Subway, currently under construction:
What contributes to the mammoth tab?
Big machinery, for starters. At $800,000 a piece, equipment such as hydraulic drill jumbos and load-haul-dump loaders can rack up a bill for the Metropolitan Transit Authority.
The single biggest piece of equipment — the two-story, 22-foot in diameter tunnel boring machine — takes 20 people to operate and costs approximately $12 million.
The video in posted in the article goes into greater detail behind all of the equipment being used. Be sure to check it out.