icholson designed and constructed a unique permanent earth retention system for this eleven-story condominium tower with three levels of underground parking. The 50-foot-high cantilevered retaining wall consists of 44 load bearing elements (barrettes) and 44, 32-strand vertical anchors. Load bearing elements (LBEs), reinforced concrete elements that are constructed with diaphragm wall equipment, were designed to act as large beams in the wall configuration. Vertical anchors were installed through the LBEs because tieback anchors were not permitted to encroach on the adjacent property. This is believed to be the tallest top-down cantilevered wall in the world.
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