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Project Profile
Watergate 600 Post-Tensioned Concrete and Waterproofing Repairs
Washington, DC
 Facility Engineering Associates (FEA) was retained to perform a due diligence
survey of Watergate 600 and the surrounding site in advance of a purchase agreement.
A 10-year capital expenditure forecast was prepared which included major issues
such as repair of portions of the post-tension cable reinforcement systems and
relocation of the building cooling towers from the garage level to the roof.
Subsequent to the purchase of the building, FEA was retained to provide design
of the post-tension repairs, waterproofing system repairs, and relocation of
the cooling towers. Design of the cooling towers included a structural evaluation
of the post-tensioned roof slab and supporting columns, noise reduction systems,
and preparation of architectural renderings of the cooling tower plan and elevations
for approval by the U. S. Commission of Fine Arts.
FEA performed construction
administration and monitoring for the three major construction activities of
this project: concrete repairs of post-tensioned slabs at the G level and garage
B-2 level; waterproofing repair/replacement at the G-level slab; and installation
of a new cooling tower on the main roof of the building. FEA worked closely with
the contractor to determine areas of cable investigation and provide guidance
for the repair and/or replacement of the cables and anchorages. The project also
involved the installation of an acoustical monitoring system within the repaired
slabs to provide the owner with an on-line real-time method of monitoring the
condition of the post-tension cables in the future.
Scope Items:
 Evaluated
post-tensioned concrete and waterproofing systems
Designed repairs
Provided bidding phase services for the Owner
Provided on-site
contract administration during the three-year project
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