This thesis examines the career of Clarence N. Crocker (1894-1995), the work of the Georgia Bridge Department during his twenty-three-year tenure as State Bridge Engineer, and the challenge of preserving his legacy, and the legacy of these feats of engineering. First, a brief analysis of the preservation efforts of other states is discussed. Analyses of Georgia's transportation heritage and Crocker's life follow in order to fully address the problems involving twentieth-century bridges, as well as their engineer. Next are three discussions examining preservation concerns particular to bridges: the first bridge has been altered, the second is being replaced, and the third is currently in use. This thesis concludes with recommendations for preserving legacies of civil engineers through rehabilitation, reuse, the creation of archives, and public involvement and education.