From the record
“The Nishnabotna River Bridge is located southwest of Manilla, Iowa, United States. It carries traffic on 310th Street over the Nishnabotna River.”
Wikipedia article Nishnabotna River Bridge (310th Street), CC BY-SA 4.0.
One of 15 National Register listings published here for Crawford County · listed in 1999 · category: Structure.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service
