The Jefferson County Government Center is a 2-building, 430,000 square foot complex which includes housing, administrative offices and judicial chambers. This large complex is comprised of two radially shaped buildings of five stories each connected by a six-story domed atrium, and two large detached parking structures. These facilities include the administration offices of the Jefferson County Government in one of the buildings, and the courts and judicial offices in the other building. An underground tunnel extends from the courts building to the existing detention facility on the opposite side of the access roadway. The framing included drilled pier foundations with multi-level cast-in-place concrete basement construction and tunnel design, composite steel structural superstructure framing with combined structural steel and cast-in-place concrete lateral systems. The exterior skin of the structures is pre-cast concrete as is the structural framing of the parking facilities. The striking, domed atrium is structured of pre-cast concrete and required unique framing layouts to accommodate this configuration and the interior framing requirements. Due to site conditions, and the foundation, basement and tunnel requirements, careful attention was required for the foundation system.