Northwest / TWA Unit Terminal, DCA, 1970

Northwest Airlines and Trans World Airlines retained Giuliani Associates Architects to design a separate terminal for their operations at DCA.  The new terminal and concourse is a poured in place concrete structure.  The concourse included self-contained loading bridges designed around the DC-9 and 727 aircraft.  The Terminal has ticket counters and bag claim devices on the same level and the concourse is a clear span rotunda providing an open vista of the airfield.  Designers include Joseph C. Giuliani, FAIA and Mario di Valmarana (whose family owns the Palladian Villa Capra, La Rotonda).