Hurricane Sandy did considerable damage to New York City services some of these include subways and buses, trains and airports, and power failures. Subways services in areas of New York City were suspended until the weekend do to flooding in the tunnels. The major concern was getting the water out of the tunnels which is a daunting task due to inspecting, cleaning, and repairing all the electrical components. Some of these electrical components include signalling systems which prevent train collisions, power to propel the trains, and communications, pumps, and vent systems that release exhaust. Seven subway tunnels were flooded by the storm where a 14 foot storm surge topped the subways entrances and grates, MTA crews pumped out the water into the East River.
Mayor Bloomberg expects that most of the power in the city would be restored by Sunday, but areas in Westchester and Long Island will most likely wait the longest for full power restoration. One of the most serious challenges to the city is restoring the tunnels which need to be cleaned of sludge and debris. Some airports have started to receive some flights on Wednesday October 31, but most airports and all railroads remain closed. New York's wastewater treatment plants have been flooded and now New York's waterways are mixed with sewage and stormwater which are flooding into the streets and buildings. In Breezy Point, Queens, at least 111 homes were destroyed due to wind-fueled fire and fire engines were kept from the blaze because of severe flooding.
http://www.nytimes.com/interactive/2012/10/30/nyregion/hurricane-sandys-aftermath.html
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