Castle completed the $11 million design-build civil scope in support of the $655 million, 560,000-sqaure-foot tower to replace the demolished Queeny Tower at the Barnes-Jewish Hospital campus. As part of the design-build team, Castle provided civil engineering and design work, and the project scope included earthwork and site utilities. The new 10-story tower sits atop a six-story podium as well as a southern entry plaza.  

Located in an area with high foot and car traffic and bordered on all sides by buildings and roads, the site was exceptionally tight, and Castle provided extensive traffic control crews to complete mass excavation and hauling safely while surrounded by active roads.