From the record
“The Quail Avenue Bridge is located southeast of Carroll, Iowa, United States. The 37-foot (11 m) span carries traffic on Quail Avenue over an unnamed stream.”
Wikipedia article Quail Avenue Bridge, CC BY-SA 4.0.
One of 20 National Register listings published here for Carroll County · listed in 1998 · category: Structure.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service