NEW YORK (CBSNewYork) — The G train is back on track after a five-week shutdown.

Subway service between the Nassau Avenue station in Greenpoint, Brooklyn and Court Square in Long Island City, Queens resumed Tuesday morning.

The line was shutdown so crews could repair a tunnel that suffered extensive damage during Superstorm Sandy. About 3 million gallons of salt water flooded the Greenpoint tunnel at the height of the storm, according to the Metropolitan Transportation Authority’s Kevin Ortiz.

After undergoing $80 million in repairs, the Greenpoint tube now has water resistant cable and new pumps.

About 100,000 riders in Brooklyn and Queens use the G line daily.

One rider tweeted that the platform burst into applause as the G rolled in Tuesday morning.

The underwater  tunnel was one of nine that was flooded during the October 2012 storm.

MTA Chief Tom Prendergast said work is ongoing at the Montague tunnel between Brooklyn and Manhattan on the R line. It is expected to reopen in October.

“Once we restore Montague, I think we’re down to South Ferry at that point and it’s the fortified part, the resiliency that we need to make sure we do,” Prendergast said. “It’s not a matter of if, it’s a matter of when the next hurricane is going to come.”

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