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Weather delays delivery of top section of 1 World Trade Center

By Morgan Winsor, CNN
April 30, 2013 -- Updated 0933 GMT (1733 HKT)
Ironworkers wait for the final piece of the One World Trade Center spire to be raised into position for attachment to the building in New York on Friday, May 10. The 408-foot spire brings the building to a height of 1,776 feet, making it the tallest in the Western Hemisphere. Ironworkers wait for the final piece of the One World Trade Center spire to be raised into position for attachment to the building in New York on Friday, May 10. The 408-foot spire brings the building to a height of 1,776 feet, making it the tallest in the Western Hemisphere.
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One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
One World Trade Center towers over NYC
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STORY HIGHLIGHTS
  • One World Trade Center will top out at 1,776 feet
  • Construction crews were scheduled to bring up final two sections Monday
  • Delivery delayed due to inclement weather
  • Once they are installed, they will make building tallest in Western Hemisphere

New York (CNN) -- Weather has delayed the scheduled Monday morning delivery of the final two sections of a 408-foot spire to the top of One World Trade Center, according to the Port Authority of New York and New Jersey.

The two sections were scheduled to be delivered to the roof deck, as long as weather allowed on Monday. Once they are installed, they will make the building the tallest in the Western Hemisphere, according to the site's management.

The two pieces form a stainless steel beacon weighing almost six tons and will be the final piece put in place to give the building an iconic height of 1,776 feet, according to a news release from the Port Authority of New York and New Jersey.

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Once the architectural structure is complete, it will be comprised of 18 separate sections of steel and three communication rings. The first -- and heaviest -- steel section was installed in January, weighing more than 67 tons, the news release said.

Port Authority Assistant Director of Media Anthony Hayes said the original design included a radome -- short for radar dome -- but that was rejected because of anticipated servicing and maintenance difficulties. The radome would not have impacted the height, but would have provided an additional design element, which ultimately proved impractical, Hayes told CNN.

The spire will serve a television broadcast facility housed in One World Trade Center, the press release said.

While under construction, One World Trade Center became New York City's tallest building a year ago, standing 1,271 feet above street-level. The building then was 21 feet higher than the Empire State Building's observation deck.

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