WTC Construction Updates, October 2011Dec 12, 2011
4 World Trade Center
Concrete core wall complete up to the 34th floor. Steel erection is up to the 53rd floor and will be on the 56th floor by the end of the month. Curtain wall installation is currently on the 17th floor of the building.
3 World Trade Center
Formwork and rebar at the eastern portion of the core walls are on the 2nd and 3rd floor. Continue scaffolds with decking platforms for the B2 slab on the north and west sides.
2 World Trade Center
Core and perimeter steel are up to street level. Rebar is being placed for the core walls at the B1-ground level and the B1M slab level.
1 World Trade Center
Steel is currently at the 83rd floor, 1000 feet above grade. Curtain wall is up to the 58th floor and the application of fireproofing is complete on the 65th floor.
9/11 Memorial and Museum
The structural steel contractor is substantially complete in the Pavilion and the installation of duct and piping throughout the Pavilion is currently underway.