Rensselaer

Amtrak on Tuesday confirmed that trains from the Capital Region would be re-routed to Grand Central Terminal in Manhattan while a bridge, tracks and a tunnel into Penn Station are repaired this summer.

The re-routing will begin May 26 and is scheduled to last until Sept. 4. The national passenger railroad said it would spend p to an estimated $45 to $50 million on the repairs, which include the Spuyten Duyvil railroad bridge that was damaged by Superstorm Sandy.

Empire Service trains, plus the Ethan Allen Express serving Rutland, the Adirondack serving Montreal, and the Maple Leaf serving Toronto, all will be re-routed to Grand Central.

The Lake Shore Limited will only operate between Boston and Chicago, meaning that New York City and Hudson Valley travelers will have to get onto that train in Rensselaer instead using Empire Service trains.

Last summer, Amtrak redirected six weekday trains between the Capital Region and Manhattan to Grand Central while crews replaced and repaired tracks and other infrastructure at Penn. But with the closing of the bridge and tunnel, all upstate trains this summer will go to Grand Central.

Amtrak once operated its trains heading upstate out of Grand Central, a vestige of the days when the terminal hosted New York Central's intercity trains along the iconic Water Level Route. Because all other Amtrak services operated from Penn Station, people transferring to Northeast Corridor trains had to make their own way between the two stations.

In 1991, after a former freight line was rehabilitated, Amtrak shifted all service to Penn.

But the station has drawn criticism for its low-ceilinged, subterranean passageways that are in contrast to the vast spaces of Grand Central, which now serves commuters on the Metro North Railroad.

Amtrak and government officials are redeveloping the former Farley Post Office next door to Penn Station into a new train hall, to be named for the late U.S. Sen. Daniel Patrick Moynihan,  which will succeed the spacious Penn Station  that was demolished in 1963 to clear the way for Madison Square Garden.

When demolition began that October, the station handled 200,000 passengers and 550 trains a day, according to The New York Times. Now, with the same 21 tracks it has had since its opening in 1910, the remnants of Penn Station handle 650,000 passengers, including those from the Long Island Rail Road and NJ Transit, and 1,300 trains a day.