The 9/11 Memorial is just 472 days away from opening on September 11, 2011. The construction momentum is mounting with the achievement of a new milestone -- 100% of the Memorial's structural steel is now in place. This steel, weighing more than 8,000 tons, is more than was used to build the Eiffel Tower. To date, more than 85% of the project's concrete has been poured. The total amount of concrete will be 49,000 cubic yards, equaling twice the volume of the Macy’s building in Herald Square, New York.Read more
