Open Span, 1912 ID: 671 | This file appears in: Superior Viaduct In this photograph from 1912, the center span of the Superior Viaduct has opened to a let a ship pass underneath. | Source: Cleveland State University, Michael Schwartz Library, Special Collections Download Original File SourceCleveland State University, Michael Schwartz Library, Special Collections "Open Span, 1912" appears in: Superior Viaduct