River Street Bridge - Credit: Wikimedia Commons
The River Street Bridge over the Iowa River at Iowa Falls, Iowa is an open spandrel bridge built during 1922–1924. It was built by the Weldon Brothers at cost of $16,900, including removal of the previous bridge on the site. It is the fourth bridge constructed on the site, a "pivotal" location in Iowa Falls' development. It has a long span, , and is built with three side-by-side arched ribs supporting concrete pillars. with Read more on Wikipedia
Source: en.wikipedia.org