Grande Ronde River Bridge - Credit: Wikimedia Commons
The Grande Ronde River Bridge, near Asotin in Asotin County in southeast Washington, is a riveted steel girder bridge which was built in 1941. It is notable as the first, or one of the first, steel girder bridges in the Washington State highway system, and was a prototype for later ones. It was listed on the National Register of Historic Places in 1995. Read more on Wikipedia
Source: en.wikipedia.org