This work entailed organizing probe locations and conducting field investigations to identify structural systems, as well as analyzing existing dome for current conditions and different step ring configurations from different periods of construction.
Completed in 1826, Thomas Jefferson’s Rotunda held classrooms and the university library for nearly 70 years before a devastating fire in 1895. Rebuilt to designs by Stanford White, the building served as the main University library for another 40 years. In the mid-1970s, the interior was removed and rebuilt based on Thomas Jefferson’s designs. Based on the design of the Pantheon, the rotunda is a cylindrical building with a raised entrance framed by Roman ionic columns and a triangular pediment.
In 2007, Silman prepared a Historic Structure Report that assessed existing framing and current conditions, provided recommendations for future use and potential modifications, and identified areas for repairs.

The interior space of the Rotunda is crowned with a domed ceiling with a domed roof and glazed oculus. Silman provided structural assistance for roof repair and oculus skylight replacement.
Silman’s scope in the final phases of this restoration and renovation included complete exterior repairs, replacement of an interior elevator, and reconfiguration of the central stairs and reframing of the north entrance stairs.