NEW YORK — A steel beam signed by President Barack Obama was lifted into place Thursday at the top of the 104-story One World Trade Center.

A crane atop the building raised the beam from the ground after dozens of people, including construction workers and police officers, added their own signatures near those of the president and first lady Michelle Obama.

"It feels really good to be a part of it," said iron worker James Brady, part of the crew that lifted the beam. "I feel very proud to be here. I feel very lucky to be here."

On June 14, the Obamas visited the skyscraper that's being built to replace the twin towers destroyed by terrorists on Sept. 11, 2001. The white beam contains the words "One World Trade Center" painted in blue. Obama wrote in marker: "We remember," "We rebuild" and "We come back stronger!"

The signatures will no longer be visible as the beam, which is 35 feet long and weighs 11,000 pounds, is enveloped by the structure.

"It will be, as the rest of the beams are, one that will support this building in years to come, decades to come," said Steven Plate, head of World Trade Center construction for the Port Authority of New York and New Jersey, which owns the site.

The skyscraper, formerly known as the Freedom Tower, is expected to be completed in early 2014.

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Online:

http://www.wtcprogress.com

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  • Billy Geoghan

    Ironworker Billy Geoghan reaches out to maneuver a steel beam as it is lifted by crane to the 104th floor of 1 World Trade Center, Thursday, Aug. 2, 2012 in New York. The beam was signed by President Barack Obama with the notes: "We remember," ''We rebuild" and "We come back stronger!" during a ceremony at the construction site June 14. Since then the beam has been adorned with the autographs of workers and police officers at the site. The beam will be sealed into the structure of the tower, which is scheduled for completion in 2014. (AP Photo/Mark Lennihan)

  • President Barack Obama's signature and thoughts are shown on a steel beam prior to it's installation on the 104th floor of 1 World Trade Center, Thursday, Aug. 2, 2012 in New York. The beam was signed by the president with the notes: "We remember," ''We rebuild" and "We come back stronger!" during a ceremony at the construction site June 14. Since then the beam has been adorned with the autographs of workers and police officers at the site. The beam will be sealed into the structure of the tower, which is scheduled for completion in 2014. (AP Photo/Mark Lennihan)

  • President Barack Obama's signature and thoughts are shown on a steel beam prior to it's installation on the 104th floor of 1 World Trade Center, Thursday, Aug. 2, 2012 in New York. The beam was signed by the president with the notes: "We remember," ''We rebuild" and "We come back stronger!" during a ceremony at the construction site June 14. Since then the beam has been adorned with the autographs of workers and police officers at the site. The beam will be sealed into the structure of the tower, which is scheduled for completion in 2014. (AP Photo/Mark Lennihan)

  • Ironworkers James Brady, left, and Billy Geoghan release the cables from a steel beam after connecting it on the 104th floor of 1 World Trade Center, Thursday, Aug. 2, 2012 in New York. The beam was signed by President Barack Obama with the notes: "We remember," ''We rebuild" and "We come back stronger!" during a ceremony at the construction site June 14. Since then the beam has been adorned with the autographs of workers and police officers at the site. The beam will be sealed into the structure of the tower, which is scheduled for completion in 2014. (AP Photo/Mark Lennihan)

  • Ironworkers James Brady, left, and Billy Geoghan maneuver a steel beam as it is hoisted by crane to the 104th floor of 1 World Trade Center, Thursday, Aug. 2, 2012 in New York. The beam was signed by President Barack Obama with the notes: "We remember," ''We rebuild" and "We come back stronger!" during a ceremony at the construction site June 14. Since then the beam has been adorned with the autographs of workers and police officers at the site. The beam will be sealed into the structure of the tower, which is scheduled for completion in 2014. (AP Photo/Mark Lennihan)

  • Ironworkers James Brady, left, and Billy Geoghan release the cables from a steel beam after connecting it on the 104th floor of 1 World Trade Center, Thursday, Aug. 2, 2012 in New York. The beam was signed by President Barack Obama with the notes: "We remember," ''We rebuild" and "We come back stronger!" during a ceremony at the construction site June 14. Since then the beam has been adorned with the autographs of workers and police officers at the site. The beam will be sealed into the structure of the tower, which is scheduled for completion in 2014. (AP Photo/Mark Lennihan)

And previously:
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  • Michelle obama

    First lady Michelle Obama greets workers during a visit to the Port Authority of New York and New Jersey's World Trade Center site for a briefing on construction progress, Thursday, June 14, 2012, in New York. (AP Photo/Carolyn Kaster)

  • Barack Obama

    President Barack Obama greets workers at the Port Authority of New York and New Jersey's World Trade Center site, Thursday, June 14, 2012, in New York. (AP Photo/Carolyn Kaster)

  • Barack Obama, Chris Christie Michael Bloomberg, Andrew Cuomo, Michelle Obama,

    President Barack Obama and first lady Michelle Obama, second from left, visit the Port Authority of New York and New Jersey's World Trade Center site for a briefing on construction progress, Thursday, June 14, 2012, in New York. With him on the tour are New Jersey Gov. Chris Christie, left, New York Mayor Michael Bloomberg, right, and New York Gov. Andrew Cuomo, second from left. (AP Photo/Carolyn Kaster)

  • Barack Obama, Chris Christie Michael Bloomberg, Andrew Cuomo

    President Barack Obama visits the Port Authority of New York and New Jersey's World Trade Center site for a briefing on construction progress Thursday, June 14, 2012, in New York. With him on the tour are New Jersey Gov. Chris Christie, New York Mayor Michael Bloomberg, and New York Gov. Andrew Cuomo. (AP Photo/Carolyn Kaster)

  • Barack Obama, Michelle obama, Andrew Cuomo, Chris Christie

    President Barack Obama speaks as he gathers with New York Gov. Andrew Cuomo, left, first lady Michelle Obama, second from right, and New Jersey Gov. Chris Christie, right, to sign a white steal beam as they visit the Port Authority of New York and New Jersey's World Trade Center site for a briefing on construction progress, Thursday, June 14, 2012, in New York. (AP Photo/Carolyn Kaster)

  • Barack Obama, Michelle obama

    President Barack Obama and First Lady Michelle Obama's signatures are seen on a white steal beam at the the Port Authority of New York and New Jersey's World Trade Center site, Thursday, June 14, 2012, in New York. (AP Photo/Carolyn Kaster)

  • Barack Obama, Andrew Cuomo, Chris Christie

    President Barack Obama, right, New York Gov. Andrew Cuomo, center, and New Jersey Gov. Chris Christie, visit the Port Authority of New York and New Jersey's World Trade Center site for a briefing on construction progress, Thursday, June 14, 2012, in New York. (AP Photo/Carolyn Kaster)

  • A motorcade passes the National September 11 Memorial Thursday, June 14, 2012, in New York. President Barack Obama was touring the 22nd floor of One World Trade Center in lower Manhattan, walking along the unfinished cement floor and stopping at easels set up with renderings of what the completed tower will look like. (AP Photo/Frank Franklin II)

  • Barack Obama, Michelle obama

    President Barack Obama shakes hands with workers as he visits the Port Authority of New York and New Jersey's World Trade Center site for a briefing on construction progress, Thursday, June 14, 2012, in New York. (AP Photo/Carolyn Kaster)

  • Barack Obama, Michelle obama

    President Barack Obama and first lady Michelle Obama look out over the 9/11 Memorial as they visit the Port Authority of New York and New Jersey's World Trade Center site for a briefing on construction progress, Thursday, June 14, 2012, in New York. (AP Photo/Carolyn Kaster)