8180 Greensboro Dr.
Suite 200
Tysons, VA 22102

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Pentagon Phoenix Project

Project Description

“We will do whatever it takes to get the job done.”

That’s what John Amatetti, P.E. and Chuck Irish, P.E./L.S. said when VIKA received the call to provide surveying services immediately following the 9/11 terrorist attack on the Pentagon. VIKA was the first survey field crew on site within 24 hours of the attack and prepared for a 24/7 schedule. We provided a survey of existing conditions, prepared 3-dimensional as-builts of the building face, and conducted 24-hour monitoring of the structure.

Focused first on immediate concerns, such as rescue, recovery and evidence efforts, we provided detailed structural horizontal and vertical as-builts of the damaged structure to help stabilize the building. VIKA was responsible for providing surveying services for the structural engineer and all the architects and other consultants throughout demolition and reconstruction, as needed. We provided a redesign of utilities, critical stakeout of the blast windows, and construction plans for the rebuilding effort. Our 24-hour monitoring extended through all construction layouts during reconstruction, preparation of the final site plan, and the site plan for the remembrance ceremonies.


3-Dimensional As-Builts
24/7 Structural Monitoring
Site Plan Preparations for Memorial Ceremony
Coordination with Military and Government Departments
Construction and Structural Layout


  • Disaster response
  • Completed in less than a year of scheduled 4-year project
  • Memorandum of Great Appreciation from Secretary of Defense Donald Rumsfeld for VIKA’s effort and participation in the Pentagon Phoenix Project
  • Special Disaster Recovery Award from American Society of Civil Engineers