From the record
“The Lyndon Bridge is a metal Parker Pratt through truss bridge in the village of Lyndon, Whiteside County, Illinois, United States. The Lyndon Bridge was designed by engineer R.S.”
Wikipedia article Lyndon Bridge, CC BY-SA 4.0.
One of 11 National Register listings published here for Whiteside County · listed in 2003 · category: Structure.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service

