Even from thousands of feet in the sky, the two acre-sized 9/11 Memorial pools can be made out.
Photographer Joe Woolhead routinely snaps pictures (like the one above) of the construction progress at the World Trade Center site. Find more of his photos here or visit www.national911memorial.org.
The Memorial is on track to open in 2011. The memorial pools are fully framed in steel, while nearly 100 percent of the steel for the project has been installed.
More than 60 percent of concrete has been poured. When construction’s completed, the total amount of steel will equal 8,151 tons – that’s more than what was used to build the Eiffel Tower.
By Michael Frazier, Sr. Communications Manager for the 9/11 Memorial