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Old January 11th, 2008, 12:04 PM   #781
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Can you someone pls point out where in the pic the memorial will be - is it all underground, including the large part of the old tower that will be returning to the site - it's pretty big to be all underground?
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Old January 11th, 2008, 11:59 PM   #782
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That is one hell of a shot. Good to see that the plots of the 4 towers become more and more recognizable.
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Old January 12th, 2008, 05:24 AM   #783
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Yes that's a great shot of the entire site, but the Freedom tower footprint does not very large, (i'm basing this on the steel colunms, compaired to the base of 7 WTC) maybe its just the angel.

I know that there is a slight overhang up to the first office floor on the corners, but still it seems small, once the structure starts to rise above street level, i'm sure it will be larger, the renderings (except for a few "V" braces) don't tell much of how the structure will look up to the first office floor.

I can't wait for this aspect of the structure to begin, (the base above ground, that is)
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Old January 12th, 2008, 06:51 AM   #784
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The Tower 4 site now is ready. Construction on WTC Tower 4 should start in a few days.




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Old January 12th, 2008, 07:16 AM   #785
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Great news, and since the tower design is pretty straight forward, once out of the ground it should rise rather fast, and by summer the whole WTC site will be in full swing........!!!!
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Old January 12th, 2008, 08:19 AM   #786
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I would think that once construction starts on WTC 3 & 4, each tower should have their own thread.

The WTC is a megaproject in general, but each skyscraper is a seperate entity.
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Old January 12th, 2008, 09:50 AM   #787
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Maybe there just just be one sticky thread for all four of the new WTC supertalls.
If they were more than one and in different sections, it would get confusing.
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Old January 12th, 2008, 01:06 PM   #788
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great news ebola! it is only pity that we can't see much from the construction on the Cam
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Old January 12th, 2008, 06:25 PM   #789
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when will they all be done?
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Old January 12th, 2008, 07:13 PM   #790
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when i remember right 2013
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Old January 12th, 2008, 10:12 PM   #791
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No by 2011 90% of it will be done (maybe excluding Tower 2) and by 2012 it should all be done, except for perhaps 130 Liberty, but that's part of the EWTC. By 2011, even the memorial and transit center and everything else in the area will be opened. If they are still working on this in 2013, then they have failed. The GS Tower should top out soon and I bet that 123 Washington (50+ floors), which is next to WTC Tower 5, will be rising very shortly because its foundation was completed several weeks ago; I wonder if tower cranes were erected.


Sometime in 2010, all of the towers will be hundreds of feet tall and rising. The true journey to the apex of the apex of the largest construction project in US history starts now.

Last edited by Ebola; January 12th, 2008 at 10:26 PM.
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Old January 13th, 2008, 04:29 AM   #792
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http://www.nytimes.com/2008/01/13/ny...on&oref=slogin
At Ground Zero, Slow and Costly Work

By GLENN COLLINS
Published: January 13, 2008


Fred R. Conrad/The New York Times

BELOW GROUND ZERO Excavation at the site of the World Trade Center. In one area, engineers had to go 120 feet below ground to find bedrock because of an ancient gorge in a former glacial streambed.



Fred R. Conrad/The New York Times

Tiebacks, essential support for the foundation, are made of 21 strands of steel bridge cabling. They must be anchored to bedrock.



Fred R. Conrad/The New York Times
Workers contend with a nasty subterranean nest in the 6.7-acre excavation called the East Bathtub.


At the eastern portion of ground zero, hundreds of workers contend with a nasty subterranean nest: steel and concrete, a defunct railroad, forgotten foundations, landfill, quartz deposits and glacial remnants in a vast pit that the Hudson River ceaselessly tries to inundate with icy, brackish water.

They are behind schedule.

For such an ambitious construction project, delays are hardly unusual. But in this case, being late is very costly.

On Jan. 1, the Port Authority of New York and New Jersey began paying penalties of $300,000 a day — $3.3 million as of Friday — for missing its deadline to complete the site excavation and preparation for two office towers at the World Trade Center complex.

Since it won’t finish the job until next month, the authority’s penalty phase could top $13 million, all of it paid to Silverstein Properties, owned by the developer Larry A. Silverstein, whose company is the leaseholder on the site and will build on it.

Critics of the authority say that the missed deadline should have been a surprise to no one. “It makes sense that penalties are worked into development deals with the Port Authority, since it has a history of slowing things up thanks to the bureaucratic maze that exists there,” said George J. Marlin, an investment banker who was executive director of the Port Authority from 1995 to 1997.

Mr. Marlin said he did not know the specifics at the site, but said “the bureaucracy of the Port Authority can slow down most anything,” adding, “What they define as fast track, and what a private developer defines as fast track, are two different things.”

But the authority insists that it has done everything possible to further a project of stunning complexity. “Of course, we would have preferred to be on schedule,” said Anthony E. Shorris, executive director of the agency, which owns the site. “We weren’t slowed by paperwork or bureaucracy. It was the challenge of doing a project of this scale in this short a time.”

In the years since the twin towers fell, ground zero has been a magnet for dissent and dysfunction. Rebuilding efforts have been hampered by legal and political wrangling and construction delays, including the redesign and re-siting of the Freedom Tower; the off-again, on-again demolition of the black-shrouded Deutsche Bank building; and the announcement last month that the World Trade Center Memorial will be delayed two years until the 10th anniversary of the terrorist attacks in 2011.

The authority’s contractors are completing a year-old, 6.7-acre excavation called the East Bathtub — extending from Liberty Street to Vesey and from Church Street to Greenwich — to prepare the three acres that will be the sites for the towers. Tower 3, at 175 Greenwich Street, will have 2 million square feet of office space, and Tower 4 will have 1.8 million square feet of office space at 150 Greenwich Street.

So far the East Bathtub price tag is $250 million, a chunk of the $16 billion that will be spent on the entire site to build, among other things, “what is, in essence, five Empire State Buildings,” said Steven Plate, director of trade center construction at the authority.

“We are proud to accomplish what we have so far in such a short time,” especially since 80,000 people daily “have moved through the subway and PATH stations at the site,” he said.

Engineers who have worked at the site said that the subterranean geology is ever surprising. “It’s a very complex, challenging area with a lot of unpredictable obstructions,” said Guy Nordenson, a professor of structural engineering at Princeton.

“You can do a lot of mapping there,” he added, “and you’ll still find the unexpected.” When asked whether the delays were caused by bureaucratic failings or the imponderables of the site, he said, “I’m inclined to give the Port Authority the benefit of the doubt.”

Silverstein Properties has paid the Port Authority nearly $658 million in ground rent — which it received in insurance proceeds — since 2001. In a 2006 renegotiation that designated Silverstein the builder of four towers there, the authority insisted on a five-year limit for the completion of construction, and in turn, Silverstein successfully negotiated for penalties in case the authority failed to complete its excavations on time. That was when the authority signed off on the 2007 completion deadline.

Mr. Silverstein’s current rent — which his company is also paying from insurance proceeds — is $78,740,000 a year, or $215,726 a day. “Our people are anxious to get their boots dirty, and build,” said Janno Lieber, the World Trade Center project director at Silverstein Properties.

The clock will start ticking for Silverstein the moment the authority turns over the tower sites, and thanks to the 2006 deal, “we will lose our equity in these buildings if we don’t finish them within five years — a risk that many developers would not take,” said Mr. Lieber, who nevertheless hopes to finish sooner.

“We can’t lose sight of the fact that in the scheme of things, this delay is not huge,” he said.

Nevertheless, construction costs “are going up something like 15 percent a year,” he said. “Literally every day’s delay costs the project a lot of money.” Therefore, despite the receipt of the daily $300,000 penalty, he said, “we won’t come out ahead.”

The impact of the construction delay on the Port Authority “will ultimately be minimal,” Mr. Shorris said, because the agency did not have to pay Phoenix Constructors, its East Bathtub contractor, a $10 million bonus it would have won for completing the job on time.

The greatest factor in the delay “was the rock,” Mr. Shorris said. “Our initial estimates were based on test borings, but they’re not really maps. You only find out when you’re down there.”

Construction managers encountered twice the amount of bedrock they had anticipated. Furthermore, when the engineers reached a level 70 feet below the street, “we expected schist, but we found a much harder rock — quartz,” Mr. Plate said.

And in one area at Church Street near Liberty, the workers had to excavate down to 120 feet to reach bedrock because engineers encountered an ancient gorge in a former glacial streambed.

Especially difficult has been the placement of tieback tendons — gleaming new anchors similar to the rusty tiebacks that supported the trade center slurry wall bathtub when the towers fell, withstanding the equivalent of an earthquake of 2.3 magnitude.

In “an exceptionally intricate process,” as Mr. Plate described it, the tiebacks — each made of 21 strands of steel bridge cabling that can be longer than 150 feet — must be drilled down and anchored into both the wall and the bedrock. Some 400 have been installed, with more than 50 to go.

The East Bathtub is more than 90 percent completed, a desolate expanse scored with caterpillar treads and boot marks, and reverberating with the incessant whump, whump, whump of gargantuan jackhammers.

Roving 85 feet below the street, like tyrannosaurs in a mechanical Jurassic Park, are more than 20 heavy-duty earth movers and rock removers, including 26-foot-high, 150-ton claws that manhandle ancient steel pilings, which will be recycled for scrap.

So far a mountain of material has been removed, more than 300,000 tons of soil, rock and concrete — enough to top off Giants Stadium, or to fill a line of dump trucks 45 miles long. Each day 70 to 100 trucks carry away the loads.

Everywhere, tracked vehicles wallow like rhinoceroses in a sea of gray mud that can be three feet deep. For although the water-resistant, 1,000-foot-long new concrete bathtub is in place, workers and machines are constantly sloshing in groundwater from the Hudson that pushes up through fissures in the bedrock floor. Only pumping keeps the bathtub from filling.

Still, Mr. Shorris said, the authority is on schedule to turn over the site for Tower 2 to Mr. Silverstein in June.
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Old January 13th, 2008, 04:34 AM   #793
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Does 123 Washington st. have a thread...?
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Old January 13th, 2008, 04:37 AM   #794
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^http://www.skyscrapercity.com/showthread.php?t=506831

I typed this into the Google bar and instantly found it: 123 washington street skyscrapercity

As for the towers 2-4, it's good to see progress made.
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Old January 13th, 2008, 07:09 AM   #795
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Beautiful project
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Old January 15th, 2008, 10:32 PM   #796
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really cool 360-degree panorama of the pit were the towers are going to rise.
http://www.nytimes.com/interactive/2...#/content=80ft
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Old January 15th, 2008, 11:01 PM   #797
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wow, impressive shot! it's a pity i can't download it
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Old January 15th, 2008, 11:24 PM   #798
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Quote:
Originally Posted by Don Omar View Post
really cool 360-degree panorama of the pit were the towers are going to rise.
http://www.nytimes.com/interactive/2...#/content=80ft
Cool indeed .. must see this everyone!
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Old January 16th, 2008, 01:03 AM   #799
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Quote:
Originally Posted by TICONLA1 View Post
Once exploited, the profit margin would exceed transport and refining costs 10 fold....!!!!
I don't think so. And aluminum and titanium are already abundant on earth.
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Old January 16th, 2008, 08:47 PM   #800
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found that on SSP, not sure if it has been posted already:

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