The photo posted in the above post is flat out deceptive. That photo comes from one of the holes in either WTC 5 or 6. Posters should not rely on overt deception here. It does not advance your cause.
As a matter of fact, before people start going off on basement this and sub-basement that, and slurry wall the other, hadn't one ought to have a proper frame of reference for what they are talking about? I think the answer is yes, there should be a proper frame of reference for what is being discussed.
Note: I here assert that the starting point for that part of the discussion consisted in the assertion, in response to my answering query of "what?" when someone said that 1 storey = 4 or 5 of them. I assert that 1 storey does not equal 4 or 5, rather it equals 1.
So, the answer turns out to have been that 1 = 5 or was it 6? because the basement levels were a debris field and count as part of the height meaurement.
But, in making that claim, none of you have really posted up what you're talking about. You haven't shown us what the basement levels or below ground levels of the WTC consisted in and you have not shown their relationship to the overall site.
As indicated at the outset, the photo quoted in the post to which this replies is not even of the subbasement or any part of it. In having this discussion, I am not here seeking to prove someone a liar and I am not decaring myself to have a monopoly on truth, either.
I would like to think we can be information oriented here and see what the data show, without declaring "jammonius lost, ha,ha,ha." If that is the case, then the data will pretty much show it to the be case and people do not have to engage in self-congratulation. Let the data do the talking.
Here, for rank starters, then, is the Warner Bros. Store that was located on the first sub-basement level -- that is, the level closest to the surface, right underneath the towers -- what debris?
It takes a series of photos to illustrate the nature of the underground levels at the WTC; and, here for starters is an overall depiction, providing the basic elements of the all important "bathtub" that encompassed the WTC to keep it dry. Had it been damaged -- it wasn't -- the site and much of lower Manhattan would have been flooded:
1-Slurry walls form water-tight bathtub.
2-PATH rail lines pass under WTC 2.
3-Even cracks in the bathtub would allow water inside.