Woo hoo! According to the MTA, the G train started rolling again at 9 a.m. and the L, which is essentially out of service, could be back very soon! MTA officials say the G is running slowly but it is running again. As for the L—look at those pictures of the flooded 14th Street tunnel and you understand the delay. It is coming though. MTA chair Joe Lhota even says it could still come back as soon as today!

Talking to the Times, Lhota said

he was hopeful that the G would be restored by Wednesday. He said he would push to bring back L service on Wednesday, too, but acknowledged that this had “a lower probability of happening.”

"Those are two lines that have had not just water but an enormous amount of silt," Mr. Lhota said in a telephone interview.

Before the MTA can reopen lines they have to first pump the flooded tunnels and then painstakingly check all the parts, which takes time. On that topic, have you been wondering how the pumping itself works? Here, let New York's Robert Kolker explain:

Pumping began soon after [the storm ended] — or “dewatering,” as the pumping industry calls it. Other city agencies had to rely on outside contractors to pump their tunnels. But it happens that the subway system already had its own toys. Each of the system’s under-river tunnels has a sump to deal with everyday seepage, and each also has a tube fixed to the side called a discharge line. Starting Tuesday, the system sent in its “pump trains” — diesel powered trains with five or six cars, run by just five or six workers. Underneath the trains are pumps, moving hundreds of gallons of water back into the river every minute. “You take the pump train and you bury the first car up to the floor level so it’s underwater,” Prendergast says, “and you hook it up to the discharge line and you start pumping the tunnel dry.”

Once the pumps are going, "It can take up to 100 hours to pump the largest tubes, fully loaded with water, or as little as five or six hours for those that are smaller or less fully flooded." So that is what the MTA has been doing with the L train's 14th Street tunnel and the G's tunnel through Newtown Creek.

Meanwhile, in other MTA news, the Coney Island terminal for the B, D, N and Q lines is still without power. The South Ferry 1 terminal is dry, but needs lots of repairs and is out of service. And workers are still cleaning up the debris at 168th Street on the A line. Having those terminals out though is part of why the system is running so slow—trains have to turn around elsewhere.

But yay! The G is back!