Even as Irene moved out of the area, Bergen County officials warned of rising waters and the possibility of heavy flooding through Monday.
A flood warning remained in effect for the area until Monday night, according to the National Weather Service.
Flood waters were being blamed for knocking out power to several Bergen towns. A power substation in Hillsdale was "underwater,” said Jeanne Baratta, chief of staff in the county executive’s office.
The substation flood brought down power in towns including Ho-Ho-Kus, Washington Township, Old Tappan, Paramus and Ridgewood, Baratta. Another substation in New Milford was also flooded, causing power outages around the county.
A foot of water was expected to spill over the Oradell dam at midnight Sunday, causing floods in Teaneck, River Edge, Hackensack, New Milford and Oradell, Baratta said.
“There are places that are flooding that we’ve never seen flooding before,” Baratta said late Sunday morning from the county’s emergency communications center in Mahwah. “We expect flooding to get worse before it gets better.”
Floods in areas south of the Oradell dam could have impacted train service, she said. Portions of Routes 4 and 17 were closed Sunday, she said.
Bergen County police are playing a central role in the storm response. Specialized high-water vehicles have been called in and are assisting some Bergen towns, she said.