The New Jersey Department of Transportation says that a “significant void” has been found under the eastbound lanes of Interstate 80 in Morris County.

The void was found during testing on the highway following several sinkholes that have formed. The DOT says that there are no immediate concerns about the stability of the westbound side of the highway.

“The area near the void has been secured to ensure the safety of the crews working to repair the roadway. This void will require a more extensive and lengthy repair than originally thought. Until a design is finalized, it is difficult to determine an exact completion date,” officials wrote in a statement.

As News 12 New Jersey has previously reported, at least two sinkholes formed in I-80 eastbound in Wharton. Officials say the highway was built over the remains of a former mine.

“All I-80 eastbound traffic is currently being detoured at Exit 34 and the following detour remains in place until further notice,” officials wrote.

· Motorists on I-80 eastbound are advised to take Exit 28/Route 46 eastbound to Route 10/Ledgewood/Lake Hopatcong, which is several miles before the closure

· Continue on Route 46 eastbound

· Stay right to take Route 10 eastbound

· Take the exit to I-287 northbound

· Stay right to take the ramp to I-80 eastbound

· Motorists on I-80 eastbound are advised to take Exit 28/Route 46 eastbound to Route 10/Ledgewood/Lake Hopatcong, which is several miles before the closure

· Continue on Route 46 eastbound

· Stay in the left two lanes to turn left at the traffic signal to continue on Route 46 eastbound

· Turn left onto Route 15 northbound in Dover back to I-80

or

· Continue on Route 46 eastbound for about 12 miles and stay left for I-80 eastbound