II, its economic value made it a target of the Nazi sabotage plan known as Operation Pastorius. In the 1990s, the bridge was repainted for the first time since it opened. It was painted a deep red called "Hell Gate Red". Due to a flaw in the paint, the red color began to fade before the work was completed, leading to the bridge's currently faded, splotchy appearance. Design The bridge could last for at least a millennium, according to the February 2005 issue of Discover magazine. Most other bridges would fall in about 300 years. Usage Tracks The bridge originally carried four tracks, two each for passenger and freight, but one freight track was abandoned in the mid-1970s. At one time, all tracks were electrified with the 11 kV, 25 Hz overhead catenary, the standard of NH and PRR. The passenger tracks have been electrified since 1917, and the freight tracks from 1927 to 1969, using Amtrak's 25 Hz traction power system. Fares Some passengers paid to use the bridge; some fares over the bridge were higher than the usual fares for the same mileage. In September 1940, coach fares were two cents per mile, so the trip from Boston to either Grand Central Terminal or New York Penn Station was the same amount, at $4.60, even though only trains to Penn Station used Hell Gate. However, the trip from Boston to Washington, D.C. was $10.00 instead of the expected $9.10; for a few decades after 1920, 90 cents was added to all fares via Hell Gate except tickets to New York itself. In April 1962, New Haven to New York cost $3.43, New York to Philadelphia cost $3.91, and New Haven to Philadelphia was $8.24. (1962 fares do not include federal tax, then 10 percent.) Operation The bridge and structure are owned by Amtrak and lies in the New York Terminal District, part of its Boston to Washington, D.C. electrified main line known as the Northeast Corridor. The bridge's two western tracks are part of the Hell Gate Line and are electrified with 12.5 kV 60 Hz overhead power and are used by Amtrak for Acela Express and Northeast Regional service between New York and Boston. In September 2009, the Metro-North Railroad's Train to the Game services, operated by New Jersey Transit from key stations on the New Haven Line to Secaucus Junction, started using the bridge during every