Sector:	Transit : Governmental :
Services:	Functional Design : Engineering Design : Architectural Design : Project Management :

Union Station Parking Expansion - Washington, D.C.

For the Union Station Redevelopment Corporation (USRC), TimHaahs explored the feasibility of adding additional parking via horizontal expansion over the existing bus deck. The study focused on redefining the circulation pattern to better serve various user groups, and adding additional lanes to decrease exit time.



The USRC also retained TimHaahs to perform design services for approximately 1000 spaces by adding five levels of a cast-in-place, post-tensioned concrete structural system, increasing the garage capacity to 2500 spaces. The project included a number of unique and complex elements, including performing construction over operating AMTRAK rail lines, as well as a number of local transportation lines, which lead under the station. A special ‘netting’ system was designed for the construction period in order to keep tools and equipment from falling onto the active tracks.

Working with RTKL Associates, TimHaahs made presentations to the District of Columbia Commission of Fine Arts and the National Capital Planning Commission to ensure that the goals of the District’s long-term master plan were met.