Three First National Building

Completed in 1980 by American Bridge, the Three First National Building project consisted of erecting a 58-story irregularly shaped office building measuring 165′ x 165′, with a 90′ x 90′ triangle deleted on the southeast corner. The project also included a 13-story low-rise structure with atrium floor framing and irregularly shaped tubular trusses, canted at a 45-degree angle from street level to various building levels.