1 CSX Transportation Inc., operates the largest railroad in the eastern United States with a 22,000-mile rail network linking commercial markets in 23 states, the District of Columbia, and two Canadian provinces.  UP - Union Pacific Railroad. Union Pacific Railroad is an operating subsidiary of Union Pacific Corporation. It is the largest railroad in North America, operating in the western two-thirds of the United States.
Chief Justice John G. Roberts, Jr., is the 17th Chief Justice of the United States; he has been the incumbent since 2005. All federal court judges, including Supreme Court Jus â¦ tices, are commission for lifetime appointments. The average tenure on the bench is 25.5 years.
Here's a list of the current Justices of the U.S. Supreme Court:    Chief Justice John Glover Roberts, Jr. is 60 (DOB: 27 January,  1955).   Justice Antonin Gregor â¦ y Scalia is 78 (DOB: 11 March, 1936).he Supreme Court of the United States (SCOTUS) has nine justices: one Chief Justice and eight Associate Justices. The Judiciary Act of 1789 provided for a 6-member Court, w â¦ ith a Chief Justice and 5 Associate Justices.