Photos: NYC Subways Flooded By Hurricane Sandy

A man uses his mobile phone to photograph a closed and flooded subway station in lower Manhattan, in New York, Tuesday, Oct. 30, 2012. Due to superstorm Sandy, New York City awakened Tuesday to a flooded subway system, shuttered financial markets and hundreds of thousands of people without power a day after a wall of seawater and high winds slammed into the city, destroying buildings and flooding tunnels. (AP Photo/Richard Drew)

The subway tunnels were flooded as Hurricane Sandy pounded New York City. 

The flood caused lots of problems to the transit system.

>>>Please click here for; In Photos: Mass Transit Damaged By Superstorm Sandy<<<

Critical electrical equipment could be ruined.

Track beds could be covered with debris.

Corrosive salt water could have destroyed essential switches, lights, turnstiles and the power-conducting third rail.

This is the worst natural disaster in the New york City subway’s 108-year history.

On Tuesday, some of the tunnels that carry cars and subway trains beneath New York City’s East River are still flooded.

The head of the Metropolitan Transportation Authority said it was too early to tell how long it would take to pump them dry and make repairs.

Mayor Michael Bloomberg guessed it could take four days for train service to resume.

Sandbags block the entrance to the closed South Ferry/Whitehall Street subway station in Battery Park, Tuesday, Oct. 30, 2012, in New York. Sandy arrived along the East Coast and morphed into a huge and problematic system, putting more than 7.5 million homes and businesses in the dark and causing a number of deaths. (AP Photo/Louis Lanzano)

The South Ferry subway station entrance in Lower Manhattan in the aftermath of Hurricane Sandy is seen in this handout photo from the MTA, in New York, October 30, 2012. One of the biggest questions now is who will pay for the extensive damage to municipal infrastructure, subway tunnels, train tracks, electrical transformers, coastal boardwalks and piers, that Sandy left behind along the East Coast. REUTERS/MTA Long Island Rail Road/Handout FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS

Flooding from superstorm Sandy has forced the closure of the New York City subway system. At the Whitehall and South Ferry station, flood waters in an adjoining shopping promenade threatened to collapse a wall separating the two areas. (Oct. 30)

Floodwaters from Hurricane Sandy rush into the Port Authority Trans-Hudson’s (PATH) Hoboken, New Jersey station through an elevator shaft in this video frame grab from the NY/NJ Port Authority twitter feed October 29, 2012. REUTERS/NY/NJ Port Authority/Twitter

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