Washington, D.C. -
The National Park Service has said the Washington Monument will be closed until mid 2014 to repair damage it suffered during the 2011 earthquake that measured 5.8.
The bidding process began on June 29 and is expected to take between 12-18 months.
According to the NPS the worst damage is between 475ft to 530ft up the structure.
The Washington Monument - built to commemorate the first US president, George Washington - usually has about 700,000 visitors a year.