World Trade Center
Timeline of the Rebuilding Effort
Demolition at the North Temporary Access Completed
One World Trade Center receives LEED Gold Certification
WTC Tower 3 Topping Out Ceremony
PATH Platforms C&D Open to the Public – September 8, 2016
America’s First Response Monument Dedication Ceremony – September 13, 2016
Eataly Opening -- August 11, 2016
WTC Transportation Hub Oculus Plaza Flag Raising Ceremony & Westfield World Trade Center Mall Opens For Business August 16, 2016
U.S. Court of Appeals for the Second Circuit affirms the 9/11 Memorial Museum’s right to display the Ground Zero Cross, a steel crossbeam that was salvaged from the site July 28, 2014.
WTC Tower 2 entrance to PATH Opens June 21, 2016
Liberty Park Opens to the public June 29, 2016
WTC Transportation Hub / MTA East Side Connector Opens May 26, 2016
Pope Francis prays at the Memorial South Pool and blesses the families of the 9/11 dead. September 25, 2015
Port Authority Police Officer Brian McGraw delivers the first baby born at the World Trade Center. The Healthy baby girl Asenat Abdrabo was born at 2:36am on PATH platform B. August 25, 2015
The first glass panels are fitted into the skylight s of the WTC Transportation Hub Oculus June 3, 2015
The intersection of Greenwich and Fulton streets is opened to pedestrians for the first time in fifty years June 25, 2015
PATH Platform B opens to the public May 7, 2015
Workers place concrete up to the 18th floor of 3 WTC May 12, 2015
Subway lines opened to public May 26, 2016
One World Observatory opens to the general public May 29, 2015
Passengers arrive on PATH Platform A, while work continues on Platform B January 23, 2015
The Port Authority returns to the World Trade Center moving their offices to 4 WTC March 4, 2015
First Curtain Wall Glass is installed in the Transportation Hub Oculus Mar 4, 2015
The Duke and Duchess of Cambridge visit the 9/11 Memorial & Museum December 9, 2014.
One WTC Opens its doors to anchor tenant Conde Nast on November 3, 2014
Workers install the last of the WTC Transportation Hub’s 114 steel rafters November 25, 2014
One WTC sidewalks on Vesey, West and Fulton streets open to the public October 17, 2014
The completed glazing for the entire Tower (including hoists) occurred in September 2014
The Memorial now opened, this is the first anniversary that visitors can walk freely onto the site on September 11, 2014
In the four months since the opening, One million person visits the 9/11 Memorial Museum on September 16, 2016
The Port Authority Board votes unanimously to advance the construction of 3WTC on June 25, 2014
The Port Authority Board votes unanimously to advance the construction of 3WTC on June 25, 2014
The 9/11 Memorial Museum is dedicated and remains open 24 hours a day through May 20 for 9/11 families, rescue and recovery workers, active duty first responders, survivors, Lower Manhattan residents, and business owners May 15, 2014
Fences around the 9/11 Memorial are removed allowing public access to the site for the first time since 2001 on May 15, 2014.
The 9/11 Memorial Museum opens to the public on May 21, 2014.
To date the Port authority has awarded minority women-owned, and small-business enterprises approximately $1.2 billion in WTC contracts May 28, 2014
The first PATH station Platform A opened to the public on February 15, 2014
February 21, 2014 move one of 13,000 glass window panels into place
January 29, 2014 First official lighting of One WTC spire
The Port Authority sells its remaining interest in the WTC retail project to Westfield December 4, 2013.
Masons install Mesabi Black granite floors in lobby of One WTC December 6, 2013
Spire and Beacon lighting tested November 8, 2013
One WTC was officially ruled taller than the Willis Tower Building in Chicago, by the Council of Tall Buildings and Urban Habitat on November 12, 2013
Mayor Bloomberg, Larry Silverstein, and others cut a ribbon to mark the official opening of 4WTC, the first tower completed on the WTC site November 13, 2013.
West Concourse which links the PATH station and Brookfield Place, is first part of the WTC Transportation Hub to open on October 24, 2013.
On September 6, the Port Authority of New York and New Jersey announces the top three photos with the most votes in the One World Trade Center Photo Contest.
On September 11, a ceremony is held at the Memorial Plaza at National September 11th Memorial. The Port Authority of New York and New Jersey pays tribute to its employees lost on September 11, 2001 and February 26, 1993 with an Interfaith Remembrance Service at St. Peter’s Church.
The last of the tower and derrick cranes are removed from roof of One WTC September 6, 2013
A Ceremony is held at the 9/11 Memorial. The port Authority remembers its employees lost on September 11, 2001, and February 24, 1993, a service at St. Peter’s Church.
The Port Authority of New York and New Jersey launches One World Trade Center Photo Contest on July 26. Nearly 1,000 images are submitted and over 75,000 votes are cast over the 30-day contest.
On May 10, One World Trade Center becomes the tallest building in the Western Hemisphere and third tallest in the world. The building reaches its iconic height of 1,776 feet when ironworkers place the final piece of a 408-foot spire at the top of
March 20, the Port Authority Board of Commissioners approve the selection of nationally renowned Legends Hospitality, LLC (Legends) to develop and operate the observation deck at the top of One World Trade Center.
Workers begin installing high-performance glass panels on the podium wall of One WTC
On January 15, the first section of the Spire is installed at One World Trade Center.
The Spire arrives at Pier 25 from Port Newark on the morning of December 11.
On December 12, work crews at One World Trade Center lift the first piece of the Spire to the top of the building.
On November 16, the iconic Spire leaves Valleyfield, Quebec on its way to Port Newark.
VSC project resumes permanent construction (laying rebar for VSC ramp slab) Nov. 1, 2012
The Port Authority Board of Commissioners approves the construction of a major retail concourse with T.B. Penick & Sons Inc. at the World Trade Center site on October 18.
Vehicle Security Center steel topped out with a beam signing ceremony October 16, 2012
On September 24, The Durst Organization launches OneWTC.com, a marketing website to attract and engage tenants from around the world.
On June 14, President Barack Obama and First Lady Michelle Obama join Governors Cuomo and Christie in signing one of the last beams placed atop One World Trade Center to bring the building to its final height of 104 stories.
On April 30, One World trade Center surpasses the Empire State Building and reclaims the title of tallest structure in New York.
On February 9, the Port Authority Board of Commissioners approves a joint venture with the Westfield Group to develop, lease and operate shopping and dining space at the World Trade Center site.
On January 13, the Port Authority of New York and New Jersey announces a milestone of awarding $1 billion in direct World Trade Center contracts to minority and women-owned business enterprises.
On September 11, the Memorial Plaza at the National September 11th Memorial opens for the first time during a moving ceremony at the World Trade Center site.
First shipment of steel arrives at the site from W&W August 2011
First piece of steel erected Week of August 6-12, 2011
On May 25, the Port Authority signs a lease with Condé Nast to occupy one-third of One World Trade Center.
The Port Authority Board of Commissioners approves a major construction contract to fabricate and erect the steel for the Oculus designed by Santiago Calatrava on February 24.
The Port Authority has awarded nearly 95% of the Hub’s contracts, valued at $3.4 billion, triggering progress on every inch of the Hub.
In the fourth week of December, One World Trade Center height reaches the 52nd floor, more than halfway to the top, and will rise a floor a week until complete.
Discovery of ship from the mid-late 1700s (18th century) at the VSC excavation site July 14, 2010
The Port Authority, Silverstein Properties and the State and City of New York announce an agreement on the development plan for the east side of the World Trade Center site on March 25.
One World Trade Center’s height reaches more than 200 feet above street level.
WTC places the 1st reinforcing steel cage inside the slurry wall forming the foundation of the VSC along West Street April 24, 2009
Excavation of first (out of 10) slurry wall panel along West Street – week of Mar 28 – Apr 3 2009
First Installation of Memorial Steel.
PATH Temporary North Access Station opens.
Towers 2, 3 and 4 site turned over to Silverstein Properties.
The first steel columns for One World Trade Center are placed on December 19.
The Port Authority finalizes agreements on September 21, giving The Port Authority control of construction of the One World Trade Center and Tower 5. Architectural designs for Towers 2, 3 and 4 are unveiled.
Preliminary work begins on east/west concourse for World Trade Center Transportation Hub. Construction of The World Trade Center Memorial resumes.
The Port Authority assumes responsibility for construction of the World Trade Center Memorial.
Seven World Trade Center opens on May 23.
The Port Authority Board of Commissioners approves the framework proposal for a new lease agreement with World Trade Center developer Larry Silverstein on April 27. Under the framework proposal, Silverstein Properties continues to build Towers 2, 3 and 4. Silverstein Properties surrenders its lease rights for the One World Trade Center and Tower 5 to The Port Authority.
Construction officially begins on the One World Trade Center on April 28.
Preliminary construction work begins on The World Trade Center Memorial on March 13.
Construction begins on the World Trade Center Transportation Hub on September 6.
The Port Authority Board of Commissioners authorizes the $2.221 billion World Trade Center Transportation Hub project. Architect Santiago Calatrava presents his refined design.
The Federal Transit Administration and The Port Authority announce $699 million of additional federal funding for WTC infrastructure work, and $478 million for a new World Trade Center Vehicle Security Center project.
A revised design for the One World Trade Center is released with unprecedented life safety and security features.
Design is unveiled for The World Trade Center Cultural Center by Snøhetta.
Final design of the WTC Memorial and museum is unveiled.
Architects Michael Arad and Peter Walker present the winning design concept for The World Trade Center Memorial. Santiago Calatrava presents design concepts for The World Trade Center Transportation Hub.
Design concept for The World Trade Center site’s 1,776-foot One World Trade Center is unveiled on December 19.
The temporary WTC PATH Station opens on November 23, ahead of schedule, reconnecting lower Manhattan and New Jersey.
The Port Authority conducts public meetings for environmental review of The World Trade Center Transportation Hub.
A refined WTC Site Master Plan is presented.
The LMDC begins the public environmental review process for the WTC Memorial Redevelopment Plan. The Port Authority announces the selection of Downtown Design Partnership and the internationally renowned architect Santiago Calatrava to perform preliminary engineering and architectural services for the design and construction of The World Trade Center Transportation Hub.
PATH service resumes at the Exchange Place Station in Jersey City, NJ on June 29, restoring a critical link in trans-Hudson PATH service and creating greater access to expanded ferry service to Lower Manhattan.
The Port Authority and the Lower Manhattan Development Corporation (LMDC) announce the selection of Memory Foundations by Studio Daniel Libeskind as the design concept for The World Trade Center site.
A groundbreaking ceremony is held for 7 WTC and the Con Ed substation.
New York Governor George Pataki and New Jersey Governor James McGreevey dedicate a World Trade Center site viewing fence with heroes’ names and other information panels. The first steel column is erected at the WTC site for the temporary PATH station.
Following completion of emergency activities, responsibility and control of the World Trade Center site is transferred from New York City to The Port Authority. The Port Authority begins work on the temporary World Trade Center PATH station.
Work begins at Exchange Place Station in Jersey City, to repair damage and enable restoration of PATH service to the Jersey City waterfront. The Port Authority begins outlining concepts for a downtown transportation hub linking PATH, subway lines, ferry service and areas adjoining the WTC site.
A program to restore Port Authority Trans-Hudson (PATH) rapid-transit rail service disrupted by the September 11 terrorist attacks is approved. Planning also is authorized for a permanent World Trade Center PATH Terminal and redevelopment of the World Trade Center site.
- History of the Twin Towers
- Timeline of the Rebuilding Effort
- Events of 2/26/1993
- Events of 9/11/2001
- ABOUT THE WTC SITE