NEW YORK | One World Trade Center (1WTC) | 541m | 1776ft | 104 fl | T/O

[MrSlippery519]

Originally Posted by oli83

Can someone tell Earthcam to fix their cam as soon as possible?!

Seriously what terrible timing...even the KPI cam is not updated.

[Portskydiver]

WTC Progress just tweeted that the barge carrying the 9 Spire pieces is headed for Pier 25 in Lower Manhattan

[spectre000]

Here's the pic.

[325ccr]

Just passing Gov. Island now. Speed is 3.5 knots

[NYBOY1975]

FROM: 1010WINS

http://newyork.cbslocal.com/2012/12/...-in-manhattan/

[sursena]

Originally Posted by wjfox

The One World Trade Center make the 30 Hudson Street Tower in New Jersey look poor.

[spectre000]

Originally Posted by NYBOY1975

FROM: 1010WINS

http://newyork.cbslocal.com/2012/12/...-in-manhattan/

"The spire is divided into 18 sections, weighing between 5 tons and more than 67 tons. Workers will begin hoisting them on Wednesday."

[spectre000]

From wtcprogress,


"Barge carrying pieces of the spire for One WTC passes the Statue of Liberty on the way to pier 25 in lower Manhattan"

[thejacko5]

Originally Posted by spectre000

"The spire is divided into 18 sections, weighing between 5 tons and more than 67 tons. Workers will begin hoisting them on Wednesday."

67. that has to be a typo

760 cant do 67 tons

[thejacko5]

tandem pick? maybe

but that automatically makes it a critical pick and the charts go down even further.

manufacturers chart tip weight for the 760 is 64 MT. 75% charts for NYC DOB. then critical pick.

[Kanto]

Maybe they wanted to write 6-7 tons, though that would look a bit weird in that sentence

[oli83]

Originally Posted by thejacko5

67. that has to be a typo

760 cant do 67 tons

Maybe two of the top cranes together? I think they have been working together before as well for very heavy pieces..

[Kanto]

Cranes can lift things together? Won't wind destroy the weight balance and place on one of the cranes a heavier load than it can handle?

[thejacko5]

Originally Posted by oli83

Maybe two of the top cranes together? I think they have been working together before as well for very heavy pieces..

Originally Posted by Kanto

Cranes can lift things together? Won't wind destroy the weight balance and place on one of the cranes a heavier load than it can handle?

yeah thats why i said tandem pick above.

the wind is the wind. like any pick, its all in the rigging. When you do a specialty pick you usually require a lifting procedure and rigging diagram signed and sealed by a PE.

when you do a critical pick (using over 90% of a cranes chart, or tandem picks), you are supposed to have a pre lift meeting with all those involved to review the procedures.

[spectre000]

From wtcprogress,


"Barge carrying 9 pieces of the spire for One WTC arrives at pier 25 from Port Newark, ready to be transported."

[Kanto]

Originally Posted by thejacko5

yeah thats why i said tandem pick above.

the wind is the wind. like any pick, its all in the rigging. When you do a specialty pick you usually require a lifting procedure and rigging diagram signed and sealed by a PE.

when you do a critical pick (using over 90% of a cranes chart, or tandem picks), you are supposed to have a pre lift meeting with all those involved to review the procedures.

Thanks for the info

[NewYorkSkyline117]

Ahhh this is so exciting! I wonder if they'll install a piece this week!

EDIT: Yes one of the pieces weighs 67 tons, and also it's only gonna take three months to install instead of the original 6! So I guess the radome shortened the time frame

[KenfromJersey]

A view of the spire pieces as seen from JC.

image hosted on flickr

Spire pieces on barge by drken10003, on Flickr

[CULWULLA]

great diagram
is there a clearer one?
[img]http://i46.************/2hgqp82.jpg[/img]

is this the top of spire?

[NewYorkSkyline117]

Yupp that's the beacon cage