Flooded Brooklyn Battery park Tunnel on Oct. 30, 2012. (Getty)

Flooded Brooklyn Battery park Tunnel on Oct. 30, 2012. (Getty) Credit: Flooded Brooklyn Battery park Tunnel on Oct. 30, 2012. (Getty)

Traffic flow in the Hugh L. Carey Tunnel will return to normal Monday morning for the first time since Superstorm Sandy filled it end-to-end with water.

The tunnel, formerly known as the Brooklyn Battery Tunnel, has been partially opened as crews worked to repair circuit boards that control overhead traffics signals in the tunnel. It will now have three lanes of traffic going into Manhattan from 6 a.m. to 10 a.m.

"Our employees have worked extremely hard in getting the signal and communications systems repaired as quickly as possible because we know that this one extra lane into Manhattan can save 15-20 minutes in commuting time for tens of thousands of commuters," said MTA Bridges and Tunnels President Jim Ferrara.

Some 400 New York City Transit and MTA buses traverse the tunnel each weekday, carrying about 40,000 commuters.

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