In this Aug. 25, 2015 photo, an Amtrak train passes over the Susquehanna River rail bridge between Perryville and Havre De Grace, Md. As state and federal officials look for an estimated $15 billion for a new train tunnel between New York and New Jersey, passengers up and down the rail line known as the Northeast Corridor contend with regular disruptions caused by track configurations and infrastructure dating to the time of the Model T, or earlier. (AP Photo/Patrick Semansky)