From the record
“Holliwell Bridge is a wooden covered bridge in Madison County, Iowa. It was built over the Middle River in 1880.”
Wikipedia article Holliwell Covered Bridge, CC BY-SA 4.0.
One of 55 National Register listings published here for Madison County · listed in 1976 · category: Structure · built in 1880.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service

