has the latest on where things stand. >> Traffic is expected to be back to normal this morning as an interim fix was done in their scheduling a permanent one. The investigation still needs to happen into exactly how a contractor was able to do the unthinkable drilling through the East River and breaching the Midtown tunnel. This was the view that the mayor had when he went in to inspect exactly what would happen. Never would drivers ever say Inc that they would be driving through the Midtown Tunnel and sea water cascading into the tube as they were crossing under the river. People were in their cars, water flowing into the tunnel. They were trying to travel between Queens in Midtown Manhattan. A contractor was working above on a new esplanade that is going to run along the Riverfront United Nations complex, somehow managing to get through rock and soil and the cast iron protective coating of the Midtown tunnel. One of the city's most use connectors for boroughs and Manhattan. The drilling contractor, Warren, George drill down 100 feet 50 through the water, another 50 through the soil. Then puncturing a whole right through the tunnel, out of 2 and a half inch hole. >> A cast iron wine just above exhaust there are many redundancies in the tunnel. But when you know, someone drilled. All of those layers, it's going to cause only traffic was gridlocked for hours on both sides of the tubes after they were eventually reopened. 5 hours later. >> That interim fix is not going to be there forever. They'll do a permanent one. The investigation into exactly how pened.