This site is really taking shape now. Worth the wait.
They've been working on the area from the visitor Pavilion to West St. Two layers have been put down. The white layer appears to be something like styrofoam blocks.
It's hard to judge depth from these overhead shots. Note the ramp inside the red box in #1 and #4
Friday, June 3
Mon, June 6
This morning
This afternoon
I think the sequence is something like this: First they put down black waterproofing (probably something like rubber roofing material). Then blue styrofoam, followed by a layer of white plastic. On top of that goes green rebar mats for the concrete.
The ramp appears to be temporary.
There are probably multiple layers of insulation, waterproofing, vapor barriers, drainage mats, etc
I bet it's like a green roof on steroids.
I mentioned the ramp to show the elevation.
OK, so on top of the concrete will go the supports for the plaza paving surface, the space between filled with soil.
Is this correct?
^ they seem to be employing a different methodology on the area over the transportation hub to the west of the north pool.. looks like they are building out the access ways pouring the final slab then they come back and put in the weatherproffing and insulation into the cut out tree boxes.
I noticed that. Maybe it's lighter that way but it's more work.
The wide stretch just south of the North Pool got a layer of concrete this morning.
Here's how the earth cams showed the work from 8:30 to 10:15 AM ...
It varies across the site, but here I think atop the 8" Plaza Slab they apply the waterproofing, then a secondary 6" protection slab. The maintenance tunnels and tree pits are approx. 5'-6" with another 8" slab on grade. Then the pavers on top.
The multi-toned color of this new rubber layer of the memorial pools seems to indicate that it isn't the last thing that will happen there... anybody know whats next?
I'd guess that the first coat soaks in and then subsequent coats will build up, resulting in a darker tone all over the surface.
The stuff they applied around the outside a couple of weeks ago was that dark in the beginning, then it faded some. so after a while it will all look the same.
Phaidon has re-issued a (new) edition of "Aftermath: World Trade Center Archive"
An archive of photos by Joel Meyerowitz
Marking the 10th anniversary of 9/11, a commemorative edition of the book Aftermath: World Trade Center Archive, by the American photographer Joel Meyerowitz, is being published with the support of the National September 11 Memorial & Museum.
Charting the monumental recovery effort in the weeks and months after the September 11, 2001 attacks, Meyerowitz's 400 photographs are interspersed with fascinating stories relayed in his own words, as the only professional photographer granted untethered access to ground zero.
Meyerowitz pays tribute to the tireless determination of the people who assisted in the recovery process, including the construction workers, firefighters, chaplains and crane operators and all the volunteers.
Joel Meyerowitz was at the 9/11 Memorial Preview Site on Vesey Street last night, talking about the 9 months he spent documenting the aftermath following 9/11, and related some funny and very moving stories of those days.
The National 9/11 Memorial is selling the mammoth book for $39.95 (reduced for wider access & distribution) ...
The 349-page book, which will be published by Phaidon Press, is the only existing photographic record of the monumental recovery effort in the weeks and months after the September 11, 2001 attacks. The publication features 400 color photographs from the World Trade Center site, where Meyerowitz was the only professional photographer granted untethered access to ground zero in the months following the attacks.
The new edition has a different cover from the original, which displayed a wide shot of the WTC site. The new cover shows a portrait of volunteer worker emerging from the pile.
Rick Meyerowitz (brother of photographer Joel Meyerowitz) and Maira Kalman created the famous New Yorker cover that appeared on the December 10, 2001 issue:
New Yorkistan ...
Image copyright by Maira Kalman and Rick Meyerowitz
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