Sandhogs work in a tunnel in the East Side Access project, more than 15 stories beneath Midtown Manhattan where workers are building a new terminal for the Long Island Railroad, the United States&#x27; busiest commuter rail system, is seen during a media tour of the site in New York, November 4, 2015. Two enormous caverns, each several city blocks long, will house eight tracks and platforms, serving an estimated 162,000 customers a day.