Thousands of small concrete deck girder bridges subsequently have been built throughout Iowa following the design standard set by the Iowa State Highway Commission (ISHC) in 1913.

The nomination in part reads:Of these pre-ISHC bridges - and among all of Iowa's deck girders, actually - the River Street Bridge is unique for its faux arch design.

The arched form was generally held to be the most aesthetically successful configuration for urban bridges for its symmetry and associations with classical architecture.

The River Street Bridge acknowledges this sense of aesthetic in its arched spandrels.

This article about a property in Floyd County, Iowa on the National Register of Historic Places is a stub.