Metro-North Railroad to and from New York City resumed full service on its major lines, while some remain indefinitely suspended.

According to an update from the MTA, Metro-North will resume New Canaan Branch Service at 3:57 p.m. on Tuesday. The Harlem Line, Hudson Line, and New Haven Main Line are running on regular weekday service.

However, Danbury and Waterbury Branch Lines in Connecticut remain suspended.

So is Port Jervis Service, with its operation indefinitely pending due to catastrophic damage to many portions of the railroad by Hurricane Irene.

Much of the Port Jervis Line, which terminates in Hoboken, New Jersey, remains inaccessible and under several feet of water, delaying the full damage assessment. Significant washouts and fallen trees have been observed at multiple locations along the tracks west of Suffern.

Metro-North crews continue to work around-the-clock to restore service on these branches. Efforts are currently hampered by widespread power outages of local utilities that make numerous grade crossings inoperable, especially on the Danbury and Waterbury Branches, stated the MTA.

Following all repair efforts, patrol trains have to operate to ensure the safety of the tracks before resuming service.

Before major construction work is made possible on Port Jervis Service, 24 miles of infrastructure will be thoroughly inspected to determine the full extent of necessary repairs and required environmental permitting.

According to the MTA website, alternate services for Port Jervis customers include:

Metro-North, working with Orange County, is busing to/from Harriman Station and Ramsey/Route 17. Buses will follow the train schedule. As road and station conditions improve in Orange County, Metro-North will seek to expand the bus options available.

Port Jervis Line commutation ticket can be used on the Newburgh-Beacon Ferry or the Newburgh-Beacon Bus. Customers will have direct bus service at Harriman station.

Port Jervis Line commutation tickets will also be honored for travel on the Hudson Line. Customers from Salisbury Mills Station west to Port Jervis station can park at Harriman and Beacon or Cortlandt stations on the Hudson Line. Valid LAZ permits will be honored at these locations.

Parking at these stations will be provided for those customers for the remainder of this week, although a permit does not guarantee a space.