Downstream Elevation Showing Relationship Of Bridge To Surrounding Farms, Looking Sw
Photo by J. Ceronie, photographer, Bennett, Muessig & Associates, Ltd., Iowa City, IA, February 1983, for HAER
BH Photo #123358
"The Mill Rock Bridge was erected by Clinton Bridge & Iron Works, a major Iowa bridge contractor. It is locally significant as an early instance of the use of riveted connections and concrete deck in county bridge construction. These were among features which were to become standard in subsequent decades due to the establishment of the Iowa State Highway Commission and the Commission's enforcement of design standards for various kinds of crossings. Because the Mill Rock Bridge does not display all features associated with this standardization program, it may be considered an illustration of the transition from county to state control of local bridge design and construction.
"The Mill Rock Bridge was documented bu Bennett, Muessig & Associates, Ltd., Town City, Iowa, for the Board of Supervisors and County Engineer, Jackson County, Iowa, in 1983. The project team comprised of J. Ceronie, photographer; Matha B. Bowers, historian; and Bruce A. Hatms, photographic assistant."