In two caverns 150 feet deep below Grand Central Terminal, work is underway on a project to connect the Long Island Rail Road to Grand Central Terminal. Contractors are removing enough dirt to fill 13,000 Olympic-sized pools, to make room for platforms and tracks underneath the lower level of Grand Central. And a new LIRR concourse is being built under Metro-North Railroad's upper level, which will provide commuters with 91,000 square feet of public space, including shops and pathways to Grand Central, the subway system and the street above. It's a big, difficult job, as the MTA explains: more ›