
North Approach To Winnebago River Bridge On Southbound U.S. Highway 65 Looking South
Photo by Bruce A. Harms, LBA, Summer 1996, for HAER
"The Winnebago Bridge, the longest monolithic concrete girder in Iowa, is the most technologically significant of the state's numerous concrete cantilevered girder bridges designed by the Iowa State Highway Commission. It also marks the culmination of this type of construction by ISHC."
Historic American Engineering Record, Summer 1995
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