Is this the gated road? If so that has been gated for one heck of a long time. I remember when it wasn't, but I would say that has been gated for at least 30 years. https://maps.njpinebarrens.com/#lat=39.87841743062971&lng=-74.26810282867433&z=15&type=nj2015&gpx=
The other way to the "mountain" is by way of Jones Rd off 532. In the last few years, there are large water holes. I'm able to go around so I don't know how deep or if there is a firm bottom. I thought there was a new gate somewhere, but if my location is correct, that's not the case.
I assume that is the one. It was intact on Saturday unless it had already been damaged and repaired.