Drone 6 was over the scene to capture the damage.
It happened on Route 46 in Knowlton Township.
Lanes in both directions are closed as a result.
Some vehicles in the area became stuck due to the landslide and are now tire-deep in mud.
Officials say crews are working to remove the debris and clear the roadway as quickly as possible.
New Jersey Governor Phil Murphy declared a state of emergency Sunday night due to the severe weather.