Constructed between 1922 and 1925, Franklin Field Stadium required a comprehensive rehabilitation in the late 20th century. The University of Pennsylvania engaged consulting engineers Joseph B. Callaghan, Inc. to survey the condition of the structure and to propose a multi-phased correction.
Beginning in 1983, the project developed in three phases. The firm administered the cutting and installation of six new expansion joints for thermal stress relief in Phase One. Phase Two involved the replacement of the upper grandstand low parapet and field wall, in addition to sundry structural steel refurbishments. During Phase Three, the firm established a cathodic protection system to retard the potential for active corrosion. This final phase was conducted over four years and addressed the remaining necessary stadium concrete repair work.
In recognition of the unique undertaking of the initial phase Joseph B. Callaghan, Inc. received the Engineering Excellence Award from the Consulting Engineers Council of Pennsylvania in 1986. The latter phases of the project were also awarded with Engineering Excellence from the American Concrete Institute (1994) and the International Concrete Repair Institute (1993) for innovation in the rehabilitation of the Upper North Grandstand and installation of a cathodic protection system.