In the fall of 2008, Silman’s participation in this project began with an initial programming study. Silman was then a member of the building design team, working in collaboration with Guy Nordenson and Associates.
The new museum facility, located on prominent site on the National Mall, derives its primary architectural idea from the classical tripartite column and from Yoruban art and architecture, where columns or wooden posts were usually crafted with a capital resembling a crown or corona. The building’s permanent exhibits house significant cultural artifacts including a Pullman train car, a concrete guard tower from the Louisiana State Penitentiary (Angola), a Tuskegee Airmen airplane from World War II, and a slave cabin from South Carolina.
Silman’s scope of work was the foundation and below-grade structural design, and the firm was also responsible for some of the above-grade CA work.
The overall building is reinforced cast-in-place concrete below grade and structural steel above grade. Key site considerations included flood resiliency, a high water table, the area’s poor soils, and the archaeology of the historic National Mall site.