Inter-American Development Bank
Washington, DC

This project was awarded to The Keystone Group after a competitive bidding process.  We were selected based upon pricing submittal and our understanding of the most critical element of the project, the installation of a 30’ grand staircase connecting the three floors of the space. This internal cantilevered staircase was installed in an occupied building which posed logistical and installation challenges.  All components were craned into the 10^th floor of the building and erected with the Bank personnel occupying a portion of the floor.  Welding and smoke evacuation were carefully coordinated to ensure no disruption  with the  Bank operations.  The "cantilever" design gives the illusion that  the stair is "free floating".  

The drywall work at the grand stair "feature wall" rises a distance of approximately thirty feet (30') - from the 10^th to 12^th floor.  Within the feature wall , custom lighting fixtures and acrylic panels were installed for backlighting. The work required careful and precise coordination with many other trades.  The drywall finishing of the openings required skilled craftsmanship working on scaffolding adjacent to the grand staircase that was being installed at the same time. 

The millwork credenza located in the 12^th floor reception area contains a combination of finishes including wood, glass and stainless steel that required careful coordination among several trades.  The 18 foot long credenza required special internal structural supports to carry the logo glass and filmed glass in addition to the support of the long span.  The wood flitches were precisely matched to coordinate with the credenza and the wood paneling beyond.