As passenger rail service continues to rise, Amtrak has announced an “aggressive” construction agenda for 2012. For example, Amtrak intends to spend $15 million in 2012 for planning and other pre-construction activities on its Gateway Program to provide additional capacity into Manhattan for Amtrak intercity and New Jersey Transit commuter services, including the proposed NextGen HSR system. As part of the overall plan, which is expected to cost several billion dollars, Amtrak will build two additional tunnels under the Hudson River to access expanded terminal facilities serving New York Penn Station and the future Moynihan Station on the site of the former Farley Post Office. In addition, Amtrak plans to replace and expand the century old Portal Bridge over the Hackensack River and increase from two to four the number of tracks between Newark and New York.