Washington Monument Earthquake Damage Repairs | Washington, DC, US Built to honor George Washington, the ?rst president of the United States, the Washington Monument is a stone obelisk that stands on the National Mall in Washington, D.C. It was completed in 1884 and, at a little more than 555 feet, it is the world’s tallest stone structure. Challenge On August 23, 2011, the monument was damaged by a magnitude-5.8 earthquake. The heaviest damage was to the top of the monument, known as the pyramidion. Along the rest of the monument, masonry on all four sides also su?ered damage. Solution Louis Berger, along with Hill International, was chosen by the National Park Service to provide construction management services during the repair process. The National Park Service commissioned the repairs

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