Hurricane Ida ravaged Louisiana, making it the fifth-strongest hurricane to hit the US mainland.

As the remnants of Hurricane Ida walloped the Northeast, killing more than 50 people, other areas are bracing for the storm’s impact as swollen rivers are threatening additional flooding.

In Trenton, New Jersey, police officers were going door-to-door Wednesday night and Thursday morning encouraging residents to leave their homes in anticipation of the rising Delaware River. Flooding was expected at several Delaware River Basin locations, and it is not expected that the floodwaters will recede by Friday morning.

Further north, in Fairfield, the Passaic River is forecast to crest more than 23 feet by Friday evening, police said.

There have been at least 16 closed roads by police in the area and additional roads could be made as the river rises overnight.

Fairfield Mayor Jim Gasparini advised residents to be careful. He warned that river levels are rising and that flooding could affect many homes and businesses.

According to the National Weather Service, area rivers are expected to rise and overflow until Friday.

“For the northeast north New Jersey rivers, we’re still seeing minor to moderate with locally, major flooding along those rivers,” James Tomasini from the Brookhaven National Weather Service told The Record.

Officials from North Jersey are closely monitoring the Passaic and Hackensack rivers, as well as Pequanock, Rockaway, Hackensack, Hackensack, and Pequanock.

Since Tuesday, the National Hurricane Center has warned of the possibility for major river flooding and flash flooding in New England and the mid-Atlantic region.