Henry Grattan Tyrrell - Artistic Bridge Design (1912)
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"A lack of artistic treatment is the greatest fault of American bridges." After making that claim the author devotes the rest of the book to ways to remedy the situation - design, material, ornaments, "special features" (such as shops,viewing points).
Tyrrell (1867-1948) wrote on similar topics, including A History of Bridge Engineering and one on mills and industrial plants. His papers are at the Smithsonian and the University of Toronto. (He's not the Henry Tyrrell who did the Shakespeare book last post.)