The wall was divided into sections for repair, with 12-inch slices cut out every 25 feet to allow the masonry to be lifted in segments. This prevented lifting on one part of the wall from inflicting further damage on other parts. The work required about three weeks as crews accomplished the leveling work section by section. Buried gas lines installed under the wall after it was originally built meant that all excavation had to be done by hand. Wall repairs and rebuilding were supervised by an architect with historic preservation credentials. Repairs required special, historic masonry tools located and brought down from Virginia to preserve the original character of the wall.