From the record
“The Stonelake Bridge, on Winkler Rd. about 4 miles (6.4 km) west of Newell, in Butte County, South Dakota, was listed on the National Register of Historic Places in 1986. Also known as the Horse Creek Bridge, it is a pony truss lattice bridge built by the Canton Bridge Co.”
Wikipedia article Stonelake Bridge, CC BY-SA 4.0.
One of 39 National Register listings published here for Butte County · listed in 1986 · category: Structure.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service