Photocopy of construction drawing (microfilm copy located at the Iowa Departmant of Transportation, Ames, Iowa). Iowa State Highway Commission, October 1929. SUBSTRUCTURE DETAILS. - Okoboji Bridge, Spanning Strait betweent East and West Okoboji Lakes, 71, Okoboji, Dickinson County, IA
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Photo credit: © Tango Images / Alamy / Afripics
License: Licensed
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