Headquarters Restoration

The restoration of this city block-sized complex was performed in two phases, all while the complex remained open to tourists and occupied by staff, including the museum and auditorium.

Phase one consisted of masonry conservation, flashing restoration, and stone cleaning at Memorial Continental Hall, as well as marble consolidation, masonry conservation, flashing restoration, and stone cleaning at Constitution Hall. Phase two consisted of the restoration and rebuilding of the north and south terraces, the restoration of the terrace steps, and the challenging addition of an underground archive below the marble terrace. To accomplish this, the terrace was disassembled, catalogued and stored on site while the marble perimeter walls and foundations were protected and shored in place. After construction of the concrete storage vault, the terrace pavers were reinstalled in their original locations and the terrace steps and perimeter walls were restored.