Longworth House Office Building — Elevator Additions
Owner: Architect of the Capitol
Contract Amount: $6,763,727
Date of Award: June 1996
Date of Completion: October 1999
Architect: Sverdrup CRSS/ A Division of Jacobs Facilities
This project consisted of the construction of two steel-framed 8-story towers within the courtyard of this fully occupied historic House of Representatives office building. A total of six new high-tech elevators were installed. The towers contained elevator lobbies with a high level of finishes that matched and tied into the existing historic finishes of the building.
Two levels of underground mechanical space were created between the towers in the courtyard. All access was via tower crane over the occupied building without disruption to Congressional activities.
About 5,000 cubic yards of excavated material was removed during the construction. Thousands of cubic yards of concrete were pumped into the courtyard through the existing basement.
New copper roofs were installed on each tower to match the existing roof.
Last updated: January 18, 2011