Story

DAVIS’ large, complex renovation of the Milken Center for Advancing the American Dream included construction to modernize and update finishes and layouts, plus the install the latest technology which will embody the ideals of the American Dream and give life to exhibits, programs and conferences. Two adjacent twelve-story buildings located at 730 and 734 15th Street house the Washington, D.C., offices of the Milken Institute, and when renovated will feature a state-of-the-art conference center and event facilities. The office towers also host other private tenants and a members' club. The American Dream Visitor Center respects the history of the buildings by retaining their character and original design elements. The renovation encountered challenges due to undocumented framing conditions and an unknown foundation layout. To address this, our process had to be exact and precise. Micropiles were installed deep into the ground to fortify the foundation and support the additional weight. However, accessing the basement proved challenging due to limited space and ceiling clearances. Innovative solutions were devised, including drilling the micropiles from upper floors down into the basement. Despite these obstacles, safety, efficiency, and quality were rigorously maintained throughout the process. The project required flexibility in response to the unpredictability of working with aged structures. Close collaboration with the owner was essential to adapt to evolving scopes of work. Originally planned with 480 shore posts, the shoring plan was significantly revised following engineer site visits. Balancing historic preservation with modernization within confined spaces was a priority. Additionally, daily coordination with the Secret Service, due to the proximity to the White House, and other on-site contractors was crucial for efficient operation. Structural demolition from the 12th floor to the 7th floor necessitated meticulous planning. Strengthening the foundations and redistributing the building's load were imperative before reconstruction could commence. Innovative solutions, such as a "catch platform" constructed by Superior Iron Works, were employed to support the building during foundation work. These measures allowed for simultaneous progress on both the foundation and the upper floors, ensuring adherence to project timelines.