From the record
“The South Dakota Dept. of Transportation Bridge No. 03-327-230, in Beadle County, South Dakota near Cavour, was a Queen post pony truss bridge which was built in 1913. It was listed on the National Register of Historic Places in 1993.”
Wikipedia article South Dakota Department of Transportation Bridge No. 03-327-230, CC BY-SA 4.0.
One of 18 National Register listings published here for Beadle County · listed in 1993 · category: Structure · built in 1913.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service