From the record
“The Delaware River Composite Truss Bridge is a composite Parker truss and Warren truss bridge in Valley Falls, Kansas. It was listed on the National Register of Historic Places in 2003.”
Wikipedia article Delaware River Composite Truss Bridge, CC BY-SA 4.0.
One of 10 National Register listings published here for Jefferson County · listed in 2003 · category: Structure · built in 1936.
Sources: the Wikipedia article · the National Register database, National Park Service