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INTRODUCTORY INFORMATION [1.4]Lichtenstein, Abba G., and Mary Elizabeth McCahon. “Historic AmericanBridges.” In Structural Preservation of the Architectural Heritage:Proceedings of the Symposium in Rome, Italy, 1993, by the InternationalAssociation of Bridge and Structural Engineering. Italy, 1993 573-80 (C).In this paper, the author gives a brief overview of bridge preservation inAmerica. Firstly, a discussion of what constitutes a historic bridge is presentedalong with examples of historic bridges. Secondly, examples of bridges that wererepaired and some that were destroyed are given. In conclusion, the author statesthat the preservation of bridges should be dealt with on a case-by-case basis.INTRODUCTORY INFORMATION [1.5]Watson, Sarah Ruth. “Some Historic Bridges in the United States.” Journal ofProfessional Activities, Proceedings of the American Society of CivilEngineering 101, no. 3 (July 1975): 383-390 (ILL) (C).This article is a brief checklist of famous bridges in America. The authordiscusses the requirements for a bridge to be deemed historic. In eloquentlanguage, the author describes the significance of many bridges that relate to notonly engineering feats, but also significant times in U.S. history. The author alsofocuses on the symbol of a bridge being used in many cultures, folklore, andhistory.3