GAO Headquarters Building
441 G Street, NW
Dear Mr. Walker:
During its meeting of 15 January, the Commission reviewed the final designs for the perimeter security barriers and guard booths for the General Accounting Office's headquarters building at 441 G Street, NW. The submission was approved with the exception of the design for the guard booths and the aggregate-concrete as shown on the material sample panel.
The members recommend the design for the guard booths be modified so that the roof overhang is eliminated. This will give the booths a rectilinear profile that is in keeping with the clean and simple lines of the main building. In addition, they recommended the use of clear, low-iron content, security glass be used in the windows of the booths instead of the green colored glass presented, so that there is a closer match to the color of the windows in the main building.
The sample of the aggregate concrete proposed for the walkways at the entrances was found to be too course in texture and of a color that is not compatible with the existing decorative granite paving 'at the entrance. To complement the granite, a gray-colored, finer grained aggregate was recommended.
In order to expedite the process, the details of the guard booth and the selection of aggregate concrete have been delegated to the staff for final review. Please forward revised drawings and new material samples when ready.
Charles H. Atherton
Mr. David M. Walker
Comptroller General of the United States
United States General Accounting Office
441 G Street, NW
Washington, DC 20548
cc: Mallory S. Andrews, Director, Facility Management, GAO
Daniel E. Packa, GAO
Ingrid Stead, GAO