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  #241  
Old Posted Feb 25, 2010, 3:32 AM
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The tracks are going to stay in place (below the Pavilion). There was a plan to allow daylight down to the tracks below by leaving open
the area just north of the Pavilion, but that would have meant leaving that part of the memorial without any trees.

Another look at it below ground.

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  #242  
Old Posted Feb 26, 2010, 7:00 AM
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http://www.panynj.gov/press-room/pre...adLine_id=1264

PORT AUTHORITY AWARDS LARGEST CONTRACT FOR WORLD TRADE CENTER TRANSPORTATION HUB

Date: Feb 25, 2010
On-Budget Contract Allows for PATH Hall Construction And Memorial Opening


The Port Authority Board of Commissioners today awarded the largest contract to date for the World Trade Center Transportation Hub, which will allow a critical portion of the major transportation facility to be built that will eventually serve more than 200,000 commuters. The contract came in on budget.

The $542 million contract was awarded to Skanska USA Civil Northeast Inc./Granite Construction Northeast Inc./Skanska USA Building Inc. It calls for the construction of the PATH Hall in the World Trade Center site's West Bathtub, as part of the World Trade Center Transportation Hub project. The work includes construction of four rail platforms and the installation of heating, ventilation and air conditioning systems; plumbing work, fire protection, architectural finishes, and ADA compliance measures.

Last April, the Port Authority modified its contract with Phoenix Constructors JV - which had been the general contractor and construction manager on the Transportation Hub project - to allow the agency to bid out all future Hub contracts separately in order to take advantage of a highly competitive market. This change in procurement strategy resulted in today's contract award coming in on budget, and follows the successful award of the Greenwich Street WTC Hub package. That contract came in 28 percent under budget.

Importantly, the contract is consistent with the schedule outlined in the October 2008 World Trade Center Report and includes a "deck-over" solution for the construction of the PATH Hall roof to make it possible for the Memorial Plaza - part of which sits on that roof - to open in time for the 10th anniversary of 9/11.

Previously, the Board awarded a $338.8 million contract to DCM Erectors to furnish, fabricate and erect 22,305 tons of structural steel for the World Trade Center Transportation Hub. The amount of steel awarded for the Hub project is equivalent to the entire weight of the USS New York (the Navy's new ship), or almost twice the amount of steel used for the new Yankee Stadium.

Port Authority Chairman Anthony R. Coscia said, "This award ensures our continued progress on construction of the Transportation Hub, which will serve more than 200,000 people every day, and is critical to meeting our commitment to open the Memorial Plaza on the 10th anniversary."

Port Authority Executive Director Chris Ward said, "This contract keeps this world-class facility on schedule and on budget, and will help ensure we keep our commitment to opening the 9/11 Memorial on the 10th anniversary. We look forward to continuing the momentum on this key public transportation project, which will serve 200,000 commuters per day, provide service on the PATH system, connect 13 different subway lines, link the World Financial Center and the ferry system, house world-class retail and more."

The Board also authorized a Memorandum of Understanding with the New York City Police Department to provide traffic enforcement agent services to maintain the safe and efficient movement of vehicles around the perimeter of the World Trade Center site.

The following actions also were authorized by the Board:

-A contract for the installation of utilities, interim sidewalks and roadway surfaces at Fulton, Greenwich and Liberty streets.

-A Memorial Foundation trade contract with PJ Mechanical for all heating, ventilation and air conditioning system work for the World Trade Center Memorial Museum Pavilion.


CONTACT:

The Port Authority of New York and New Jersey

Steve Coleman, 212 435-7777

The Port Authority of New York and New Jersey operates many of the busiest and most important transportation links in the region. They include John F. Kennedy International, Newark Liberty International, LaGuardia, Stewart International and Teterboro airports; AirTrain JFK and AirTrain Newark; the George Washington Bridge and Bus Station; the Lincoln and Holland tunnels; the three bridges between Staten Island and New Jersey; the PATH (Port Authority Trans-Hudson) rapid-transit system; Port Newark; the Elizabeth-Port Authority Marine Terminal; the Howland Hook Marine Terminal on Staten Island; the Port Authority Auto Marine Terminal; the Brooklyn Piers/Red Hook Container Terminal; and the Port Authority Bus Terminal in midtown Manhattan. The agency also owns the 16-acre World Trade Center site in Lower Manhattan and is a partner in the Access to the Region's Core tunnel project.
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  #243  
Old Posted Feb 27, 2010, 3:47 PM
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morrongiello (Feb 26)

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  #244  
Old Posted Feb 27, 2010, 7:45 PM
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Wow The South Pool Is All Shaped Out......and #4 Wtc Is Getting The Next Level Of Steel...... Looking Great......
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  #245  
Old Posted Mar 5, 2010, 10:56 PM
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That white tent structure with the round roof has disappeared from the N. Pool....
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  #246  
Old Posted Mar 6, 2010, 7:31 PM
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more steel is being installed to cover the transit lines. It will be nice when thats all not visible!
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  #247  
Old Posted Mar 7, 2010, 12:05 AM
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I have a feeling that the memorial is going to be beautifully serene during the winter time.
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  #248  
Old Posted Mar 9, 2010, 6:05 PM
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Digging foundations for the terminal...(pic from wtc.com) March 1, 2010




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  #249  
Old Posted Apr 4, 2010, 1:40 PM
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Tom Lohdan

NORTH POOL


SOUTH POOL
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  #250  
Old Posted Apr 4, 2010, 2:28 PM
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Saw this on Wired...

Trees.will.be up by the end of this year

ACRE-SIZED SIGNATURE REFLECTING POOLS FOR NATIONAL SEPTEMBER 11 MEMORIAL FULLY FRAMED IN STEEL

Date: Mar 29, 2010

Press Release Number: 17

Nearly 100 Percent of the Steel for the Memorial Installed to Date;

Real-Time Video Through EarthCam's Webcam at national911memorial.org

And Through the Port Authority's WTC Web site at www.wtcprogress.com

The National September 11 Memorial & Museum and the Port Authority of New York & New Jersey today announced that the two signature reflecting pools for the Memorial are completely framed in steel.

To date, 99.8 percent of the steel for the project has been installed and nearly 60 percent of concrete has been poured. When construction is completed, the total amount of steel will equal 8,151 tons - more than was used to build the Eiffel Tower - and the total amount of concrete will be 49,900 cubic yards. The Port Authority is building the Memorial and Museum on behalf of the Memorial Foundation.

"The Memorial pools are now clearly defined in steel, marking an exciting and visible milestone," 9/11 Memorial President Joe Daniels said. "The 9/11 Memorial is a true marker of progress at the World Trade Center site with these two pools helping to fulfill a promise to rebuild and replace the void left in the wake of the 9/11 attacks."

Port Authority Chairman Anthony R. Coscia said, "As the lead builder of the public projects on the World Trade Center site, we take enormous pride in seeing key parts of the Memorial take shape. We look ahead to meeting our commitment of opening the Memorial on the 10th anniversary."

Port Authority Executive Director Chris Ward said, "Opening the 9/11 Memorial on the 10th anniversary of the attacks is our highest priority, and the framing of the signature pools is a tangible sign that we are continuing to make significant progress to meet our commitment."

In the coming weeks, the granite stone lining the Memorial pools will begin to be installed within the pools. The Memorial pools are expected to be the largest man-made waterfalls in the country, pumping 52,000 gallons of recycled water per minute. The mammoth pools will sit within the original footprints of the fallen Twin Towers.

Surrounding the two Memorial pools will be a grove of nearly 400 oak trees. The trees are currently growing at a holding site in New Jersey and will begin to be planted later this year.

Ninety percent of the trade contracts for the project have been awarded to date. The Memorial is on schedule to open on 9/11/2011. The Memorial Museum is expected to open a year later.



ABOUT THE NATIONAL SEPTEMBER 11 MEMORIAL & MUSEUM

The National September 11 Memorial & Museum is the not-for-profit corporation created to oversee the design, raise the funds, and program and operate the Memorial & Museum at the World Trade Center site. The Memorial & Museum will be located on eight of the 16 acres of the site.

The Memorial will remember and honor the nearly 3,000 people who died in the horrific attacks of February 26, 1993, and September 11, 2001. The design, created by Michael Arad and Peter Walker, consists of two pools formed in the footprints of the original Twin Towers and a plaza of trees.

The Museum will display monumental artifacts linked to the events of September 11, while presenting intimate stories of loss, compassion, reckoning and recovery that are central to telling the story of the 2001 attacks and the aftermath. It will communicate key messages that embrace both the specificity and the universal implications of the events of 9/11; document the impact of those events on individual lives, as well as on local, national, and international communities; and explore the continuing significance of these events for our global community.
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  #251  
Old Posted Apr 4, 2010, 2:30 PM
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I keep asking but it appears nobody on wired or any other site has any clue... how the hell are you going to plant 400 Oak trees in a plaza that only has 12-15 feet of soil? Oak trees have the largest tap root/tree height proportions of just about any tree. Tap root is usually 1.5x the height of the tree and oaks get up to 90ft+... Thats 135ft tap root...
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  #252  
Old Posted Apr 4, 2010, 2:35 PM
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Quote:
Originally Posted by FerrariEnzo View Post
I keep asking but it appears nobody on wired or any other site has any clue... how the hell are you going to plant 400 Oak trees in a plaza that only has 12-15 feet of soil?
Trust me, the people that need to know how already know. I wouldn't worry about it.
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  #253  
Old Posted Apr 4, 2010, 10:13 PM
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Quote:
Originally Posted by FerrariEnzo View Post
I keep asking but it appears nobody on wired or any other site has any clue... how the hell are you going to plant 400 Oak trees in a plaza that only has 12-15 feet of soil? Oak trees have the largest tap root/tree height proportions of just about any tree. Tap root is usually 1.5x the height of the tree and oaks get up to 90ft+... Thats 135ft tap root...
These are swamp oaks that don't grow that big. also, oaks have a wide but shallow root system, 1.5 times the WIDTH of the tree.
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  #254  
Old Posted Apr 4, 2010, 10:31 PM
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Originally Posted by uakoops View Post
These are swamp oaks that don't grow that big. also, oaks have a wide but shallow root system, 1.5 times the WIDTH of the tree.
Appears you are correct, the tap root is only about 1/2 of the height. Swamp Oaks only get 60 feet tall... still a root (30 feet) twice the depth of available space... perhaps they plan on not allowing them to reach full maturity. We shall see.
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  #255  
Old Posted Apr 5, 2010, 6:18 PM
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That article says oak trees. I thought they were planting Sweetgum trees, which also have a very deep root system btw. Odd tree choices. They should have picked a majestic and beautiful tree with a relatively forgiving rooting habit like a blight resistant American Elm.
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  #256  
Old Posted Apr 5, 2010, 6:52 PM
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I posted the same question at wired ny and they seemed to have "dug" up some answers. http://wirednewyork.com/forum/showth...957#post321957

Quote:Swamp white oaks will cover the eight-acre site, and sweet gum trees, known for turning blood-red in the fall, will surround an opening on the southwest side, which will be used for ceremonies.

Quote:Swamp white oak has a spreading, shallow-growing root system.

As for the Sweet Gums:

Quote:Much of the root system of a Sweet Gum tree is shallow (just beneath the surface of the soil.



And another response:

Trees - root system of oak trees
Expert: Jim Hyland - 2/4/2009

Question
Does an oak tree have a fibrous or tap root system? How deep do the roots usually grow?


Answer
It is generally a rather shallow root system that is composed of many smaller fibrous roots. The root system is usually in the first two feet or so of the ground surface and extend out about 1 1/2 times the width of the foliage. The roots right under the trunk may extend down to 4-6 feet deep.
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  #257  
Old Posted Apr 5, 2010, 7:11 PM
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Wow that was fast. Thanks for the answers. Yeah, it turns out that Sweetgums root very shallow and widespread when the soil is wet and poorly drained. e.g. a vast concrete planting bed. I guess I should defer to the tree experts.
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  #258  
Old Posted Apr 5, 2010, 8:22 PM
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Originally Posted by vandelay View Post
Wow that was fast. Thanks for the answers. Yeah, it turns out that Sweetgums root very shallow and widespread when the soil is wet and poorly drained. e.g. a vast concrete planting bed. I guess I should defer to the tree experts.
Lol I had posted the question a few days ago the same time I posted the original here on SSP. Its odd because I used to grow oaks for sh*ts and giggles as a kid. I would gather acorns and put them in water, the ones that sink are good for planting etc... anyways the tap root always SHOT down like a rocket. So for some reason I was convinced it kept that proportion its entire life-span. You learn something new everyday!
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  #259  
Old Posted Apr 9, 2010, 5:38 AM
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http://blog.national911memorial.org/?p=1072

New Images of Design Studies for the 9/11 Memorial Museum Exhibition Released

Michael Frazier






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9/11 museum to re-create the post-attack landscape

By AMY WESTFELDT

Quote:
The shrines of candles and flowers and the broken pieces of steel standing at ground zero became iconic images of post-Sept. 11 New York in the weeks after the terrorist attack.

Visitors to the planned memorial museum will see recreations of the vigils and makeshift memorials that sprang up around the city and the eight-month cleanup of the destroyed World Trade Center in exhibits focusing on New Yorkers' post-9/11 experience.

New renderings obtained by The Associated Press on Thursday show a woman paying respects over dozens of candles, flowers, teddy bears and a construction worker's helmet. The homemade shrines covered the city in the weeks after the attacks, particularly at Manhattan's Union Square, where relatives came with pictures of their missing loved ones.

Another exhibit focusing on the cleanup of the trade center site by thousands of ground zero workers will project images of workers at the site onto huge remnants of steel from the destroyed twin towers.

A centerpiece of one exhibit will be a three-pronged trident column from a trade center tower rising out of a pile of recovered steel, with an image of the same column projected onto it. A recording of recovery workers talking about the desperate search for survivors and recovery of remains will be heard over the exhibit.

The exhibits will be enhanced with the recorded testimony of witnesses from around the globe, captured in real time by cell phone messages, radio transmissions and video, and in recorded interviews with rescue workers, evacuees and others within minutes of the collapse, Museum Director Alice Greenwald said Thursday.

Visitors will pass through a "Where were you on 9/11?" gallery, where a choreographed multimedia program will offer recorded recollections of what people across the world were doing and how they learned of the 2001 terrorist attack through a choreographed multimedia program.

At the end of that interpretive journey, visitors will be able to record their own stories on where they were on that fateful day, and those will be added to the exhibit.

Listening stations will allow visitors to hear personal stories from volunteers and survivors, as well as from individuals whose homes and businesses were inundated with the debris and dust from the collapsed towers.

And a series of panels will pose open-ended questions on how the experience of the terrorist attacks continues to shape the world.

Museum officials presented the latest exhibits for the museum — slated to open in 2012 — at a Thursday meeting of the Lower Manhattan Development Corp.

The exhibits "will chronicle not only the shared witness to the horrific events of Sept. 11, but the extraordinary compassion and dedication that were demonstrated time and again during the days, weeks and months following the horrific attacks," Greenwald said.
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  #260  
Old Posted Apr 12, 2010, 1:40 AM
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Inside the south pool...(from wtc.com)




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