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   Structural Renovation

  

  Constitution Center

   Washington, DC 
 

   This project consists of the major renovation and retrofit of an existing

   Class "A", 10-story office building (1,400,000 SF above grade) with

   3 underground parking levels (709,000 SF) that meets or exceeds

   GSA's current Federal Office Building Standards.  Access is provided

   to the WMATA L'Enfant Plaza station at D Street, SW.  The existing

   building was reduced down to its structural elements and then

   renovated to included the design of a new blast resistant building

   facade and reconstruction of all service cores.  Amenity spaces were

   designed with a basic 30 ft column grid to align with existing columns

   spacing, with long span designs considered for future tenant options.

   Winner of the 2010 SEA-MW Excellence in Structural Engineering 
   Special Merit Award for Renovations over $25M

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