The Civil Engineering Contractor July 2018 | Page 15

Twin Tower Memorial: On 13 March 2006, work on the
Reflecting Absence design began. The budget was
USD500-million.
In September 2008, construction workers raised the
3 500kg first column, near the footprint of the North
Tower. A total of 8 300 tons of steel were installed and
by April 2010, the reflecting pools were framed in steel,
with 85% of the concrete poured. By April, installation
of the granite coating for the reflecting pools began
and by June, workers had begun granite installation in
the South Pool. In July, the first soil shipments arrived
and in August, tree planting began on the memorial
plaza. Most of the memorial was finished for the 10th
anniversary of the terrorist attacks, with the museum
planned for completion one year later.
On 12 September 2011, one day after the 10th
anniversary of the attacks, the memorial opened to
nn
the public.
CEC July 2018 - 15