With respect to damage to underground transit facilities at the WTC I found two informative articles
HERE that give brief outlines of the subject. The articles are based on reports by
Mysore L. Nagaraja (Chief Engineer for New York City Transit) The articles are dated late September 2001.
Below are a few quotes taken from the articles. The veracity of the reports should be beyond doubt so bang goes jammonius' nonsense re: "no underground damage"
BV
Greetings BV, and thanks for the helpful info.
Articles dated from late September 2001 that contain an analysis of how the towers fell would appear to me to be quite arbitrary as at that early date, not much actual assessment of that type had been done.
This statement is intriguing, to be sure, but it is highly imprecise as to where in Lower Manhttan this section is located:
"New York City Transit officials have determined that damage to the No. 1 and 9 subway tunnels and stations in Lower Manhattan is so extensive that the line will need to be completely rebuilt for more than a mile."
Equally imprecise and meaningless is this:
"About 575 feet of the line is totally collapsed, in two separate locations, but subway engineers who have explored the tunnels say that hundreds more feet are structurally unsound,"
And where might that be; and what, if anything, did the destruction of the WTC complex have to do with it? As of late September, 2001, when the article was written, I doubt enough analysis could have been completed for purposes of any sort of rational cause and effect assessment.
Next:
"Ferrelli, [the chief of infrastructure for the subways] who walked through the damaged stations and tunnels on the 1 and 9 line last Friday, said so much of the line collapsed because the top of the 2 World Trade tower fell more to the side than the other tower. The debris crashed directly above the tunnel that ran along the northeast corner of the building, crushing a section about 375 feet long."
This is a highly interesting commentary, containing a number of incongruities. If he was able to walk through, how collapsed could it have been? In fact, read carefully, it does not appear there was any debris in the tunnel.
The man literally says: "... the top of the 2 World Trade tower fell more to the side than the other tower. The debris CRASHED DIRECTLY ABOVE THE TUNNEL that ran along the northeast corner of the building, crushing a section about 375 feet long." (capital letters added)
Thanks for confirming that the debris did not reach the tunnel. This is what I have been saying. There was no debris underground. Your own quotation specifically says so.
Your next segment attributes damage to WTC 7's destruction and so is not directly relevant to the main episode of destruction and/or GZ proper.
Finally, you reference this:
"The MTA's chief engineer, Mysore Nagaraja, in a report to an MTA committee, said the tunnels that serve the No. 1 and No. 9 lines that run beneath the World Trade Center and the infrastructure supporting them took heavy damage.
"Eighteen hundred linear feet of the tunnel damaged or filled with rubble, Cortland Street station probably destroyed," read the caption on a slide shown by the chief engineer at a meeting of the Capital Program Committee."
We need a map to locate that station. Cortland Street itself appears to end at Church Street having run from east to west to that point. That places it well outside the footprint of WTC 2. I think we need more info about where that 1800' segment actually was located. You agree?
