Thanks for posting those outstanding photos.
I have a question: you noted that there are two 50-ft. pools. Fifty feet deep? Was that an error? If not, why so deep?
To answer your questions, I have drawn from the architectural designs.
This memorial proposes a space that resonates with the feelings of loss and absence that were generated by the destruction of the World Trade Center and the taking of thousands of lives on September 11, 2001 and February 26, 1993. It is located in a field of trees that is interrupted by two large voids containing recessed pools. The pools and the ramps that surround them encompass the footprints of the twin towers. A cascade of water that describes the perimeter of each square feeds the pools with a continuous stream. They are large voids, open and visible reminders of the absence.
Read More
Anoter article of worth - Reflecting Absence: Exploring The 9/11 Memorial