Inside the Massive New Rail Tunnels Beneath NYC’s Grand Central

It’s been two years since New York’s MTA allowed reporters into the cavernous East Side Access project, America’s largest transportation project and first update to the Long Island Railroad in 100 years. Current cost: $10.178 billion. Once completed in December 2022, the nation’s busiest railroad will run directly into Grand Central Terminal—with massive escalators and concourses connecting to the street.