DL&W Tunkhannock Viaduct
Built in the first decades of The 20th Century by the Lackawanna RR, this bridge now carries trains of The Canadian Pacific Railway.
It is located on US Route 11 in Nicholson, PA.
The highway at the bottom of the photo is US Route 11, and was the original roadbed of the railroad. Upon the bridge's completion, the Lackawanna gave the original to the government for the highway's construction.
The original purpose of this bridge was to shave 11 minutes off of time that the train used on its NY City (Hoboken) route to Buffalo!
And another quaint anachronism is that the railroad paid for this project with its own funds!!!!!