You're very very lucky your KJ didn't fall into a subsidence and you didn't get injured.
There is a reason why Route 61 is closed, plowed shut and a bypass.
I live about 1/2 hour away from Centralia and there's always some ******* who gets their Jeep/Truck/ATV stuck because the ground fellout around them.
I'll admit, the "town" is an oddity and it is creepy driving through there. I do, however, feel terrible for the families who got kicked out of their houses. The Odd Fellows cemetary recently got vandalized, too. Some kids kicked over tombstones and caused about 6k worth of damage.
If anyone goes there, I'd suggest NOT to drive on the closed section of 61. The danger is real and if you fall in, you're on your own. Oh, and please don't bother the residents...they don't like that.