The R train is rolling once again between Manhattan and Brooklyn.

The R had been running in two sections since Hurricane Sandy when flood waters filled the Montague Tube connecting Brooklyn Heights and Lower Manhattan.

One portion had been running between 71st Avenue in Queens and Whitehall Street in Lower Manhattan, the other between Bay Ridge and Court Street in Downtown Brooklyn.

Officials say more than 27 million gallons of water had to be pumped out of the tunnel which serves the line used by an estimated 65,000 commuters daily.

Straphangers have had to find other ways to get across the East River, but are now breathing a sigh of relief.

"It's been hell taking this commute from Staten Island. I could be taking the ferry and taking the R train back to Brooklyn instead I've been commuting through the buses and it's been like an hour and a half to get home and it's been difficult," said one straphanger.

"I'm grateful because I had to transfer to another train taking the elevator and escalator up to the number 4 train, 2 train to get my destination so now it's just a straight ride," said another straphanger.

While enough has been done for the R to operate safely, the Metropolitan Transportation Authority says some temporary service suspensions will be necessary in the future to to make more permanent repairs to the line.

The R train restoration means the 1 train south of Rector Street and the A line to the Rockaways are the only parts of the subway system out of service because of the storm.