Pentagon Wedge 1 & Basement Renovations
Wedge 1 consists of 5 floors totaling 1.2 million square feet. The work consisted of a complete demolition to the original building shell to renovate space functions for 21st century mission operations. This included removing all mechanical utilities while allowing operations to remain active in the adjacent wedges.
The original construction took place in 16 months, from September 11, 1941 to January 15, 1943. Since that time no major renovations have taken place to accommodate the many tenants occupying the building. Much of the renovated space will be configured to "open office" space to allow move in and transfer of 100 separate organizations of the Army, Navy and the Office of the Secretary of Defense. The basement renovation included areas for data network and communication systems. We were responsible for critical (N+2) HVAC systems serving the data centers.
In addition this space was fit-out for highly classified Department of Defense administrative functions.
One of the major mechanical challenges was replacing a new drainage system in-between the existing pile caps and foundations. This was complicated by existing conditions that were sometimes not documented from the original 1941 installation. Our team carefully coordinated the new drainage system without disruption.
We were also responsible for constructing 38 new mechanical rooms between existing concrete walls and light wells.