From the record
“The M-28-Sand River Bridge is a bridge located on M-28 over the Sand River in Onota Township, Michigan. It was listed on the National Register of Historic Places in 1999.”
Wikipedia article M-28-Sand River Bridge, CC BY-SA 4.0.
One of 14 National Register listings published here for Alger County · listed in 1999 · category: Structure.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service