South Dakota Dept. of Transportation Bridge No. 56-090-096 - Credit: Wikimedia Commons
South Dakota Dept. of Transportation Bridge No. 56-090-096, near Forestburg in Sanborn County, South Dakota, is a Warren pony truss bridge built by the Iowa Bridge Company in 1912. It was listed on the National Register of Historic Places in 1993. Read more on Wikipedia
Source: en.wikipedia.org