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National September 11 Memorial and Museum at the World Trade Center « back
Summary | Daily Activities | Contact Info | FAQs | Links

Construction began to build the WTC Memorial

Construction to build the National September 11 Memorial & Museum at the World Trade Center -- intended as a solemn space where visitors can remember and honor the thousands of lives lost during the 2001 and 1993 terrorist attacks -- is well underway. Initial foundation work, which began in March 2006, was completed in winter 2007/08, and the first phased of structural framework installation has begun.

Steel erection began in September 2008. The Port Authority, which is building the Memorial, plans to open the plaza by September 11, 2011, with the entire structure complete by mid-2013.


Summary

The memorial will have three levels below ground
Designed by Michael Arad and Peter Walker, the Reflecting Absence memorial will consist of two voids on the sites of the twin towers' footprints. Surrounded by a forest of oak trees, each void will feature rings of cascading water falling into illuminated reflecting pools.

Adjacent to the two pools, a memorial museum will extend 100,000 square feet underground and will use artifacts and exhibits to tell the story of September 11, 2001, and February 26, 1993. Visitors also will be able to view a section of the massive slurry wall that held back the Hudson River during the attacks.


Daily Activities

*The following information was last updated on October 10, 2008.

  • Slurry wall reinforcement
  • The "Survivors Stairway" will be relocated to its permanent home in the underground Memorial by late 2008
  • Steel installation began September 1, 2008
  • Concrete installation begins in early 2009
  • Memorial crews plan to remove the ramp into the WTC site by December 2008 to continue construction on the south footprint
  • The World Trade Center Memorial Foundation announced on April 9, 2008 that it reached its $350 million private fundraising goal

Contact Info

For more information about the National September 11 Memorial and Museum at the World Trade Center, call (212) 227-7722 or click here.


Frequently Asked Questions

Q: What is the World Trade Center Memorial Foundation?
Q: How can I donate to help build the memorial and museum?
Q: How many designs were entered in the memorial contest?
Q: When was Reflecting Absence selected?
Q: How was a construction manager selected for this project?
 
Click here for answers to commonly asked construction questions.

Related Links

Design Details for Memorial Pavilion Unveiled
9/11 Memorial Gathers Public Artifacts for Display
Looking Ahead: World Trade Center Memorial
Slide Show: Reflecting Absence
WTC Site Webcam
Construction Begins on WTC Memorial and Museum
World Trade Center Memorial Foundation Website
Special Feature
> Construction Lingo
> Construction Questions Answered
> Support the Memorial
> Envisioning the Future
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