From the record
“The EAU Arvada Bridge was a Parker through truss bridge located near Arvada, Wyoming, which carried Sheridan County Road CN3-38 across the Powder River. The bridge was built in 1917 by the Monarch Engineering Company of Denver.”
Wikipedia article EAU Arvada Bridge, CC BY-SA 4.0.
One of 29 National Register listings published here for Sheridan County · listed in 1985 · category: Structure.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service
