I'm guessing, Mississippi is majority clay and sandy loam type land, and because of that it's almost impossible to build underground shelters attached to houses.
The ground shifts to much, and as such, detaches any sub structures from their anchoring. Can find this in tornado alley states too.
Which is why you won't see anything but slabs there.
I'm guessing, Mississippi is majority clay and sandy loam type land, and because of that it's almost impossible to build underground shelters attached to houses.
The ground shifts to much, and as such, detaches any sub structures from their anchoring. Can find this in tornado alley states too.
Which is why you won't see anything but slabs there.
Could be totally wrong, but that's my take.
The water table may be an issue as well.