U.S. DEPARTMENT OF THE INTERIOR HEADQUARTERS BUILDING MODERNIZATION - OPTION 4 (wing 2)

Project Details

Owner: General Services Administration
Contract Amount: $55,188,592
NTP: March 15, 2010
Date of Completion: October 11, 2011
Architect: Shalom Baranes Associates

Photo by Carl Cox.

This contract involved renovations to Wing 2 (~200,000 SF) of the U.S. Department of the Interior Headquarters Building in Washington, DC. In prior phases Grunley modernized Wings 3, 4, 5 and 6 (800,000 SF) within the 1.29 million SF occupied structure.

Highlights of this phase included:

Replacement of the telecommunication and electrical systems, and associated wiring to include new switchgear and transformers.
Replacement of the existing HVAC mechanical systems and associated pipe and duct to include new air handling units and integration with mechanical equipment installed in the previous wings.
Replacement and installation of upgraded life safety systems.
Installation of two new additional egress stairs to update the building to newer life safety occupancy codes.
Restoration of one of the freight elevators.
Modernization of the DOI Museum and Native American Indian Gift Shop.

Last updated: November 30, 2011