the engineering quad, was designed in the 1940s and 1950s on a site previously occupied by the old armory and faculty housing, using a master plan developed by the perkins and will firm. it has undergone major changes in recent years, particularly with the completion of duffield hall. in 2004, relandscaping with a design inspired by cascadilla gorge was completed and its landmark sundial was restored to its rightful place on the quad (after having been stored in upson hall during the construction period). in 2017, a $74.5 million renovation was completed for upson hall, completely revamping the building with work-friendly floors and a modern lounge. also, modern and open collaborative working spaces were introduced with the construction of a large atrium connecting duffield, which houses research and teaching facilities for nanoscale science and engineering, with phillips and upson (1956) halls. connected to upson hall, away from the quad, are grumman hall (1957) and frank h. t. rhodes hall (1990), which currently houses the cornell theory center. on the southern end of the quad, next to upson and near cascadilla creek, are kimball, thurston and bard (1963) halls, all part of a single brick and concrete structure. thurston is the home to the theoretical and applied mechanics department, and bard hall the home of the material sciences department. between upson and kimball stands ward hall (1963), the soon to be closed down and former building for nuclear sciences. next to bard, and across the street from the cornell law school, stand snee hall (1984) and hollister hall (1957). carpenter hall (1956), containing the engineering library, stands next to hollister on the northwestern corner. it is one of the smallest buildings on campus and the site of a protracted anti-war building occupation in 1972. the edge of northern face of the quad, mostly open space, is lined with trees along campus road. across campus road is franklin w. olin jr. hall (1942), home of the school of chemical and biomolecular engineering.