Route 66 Bridge over the Chicago, Rock Island and Gulf Railroad - Credit: Wikimedia Commons
The Route 66 Bridge over the Chicago, Rock Island and Gulf Railroad, in Wheeler County, Texas near Shamrock, Texas, was built in 1932. It carried Route 66 traffic until 1960. It now carries the south frontage road of Interstate 40 over the former Chicago, Rock Island and Gulf Railway right-of-way. It was listed on the National Register of Historic Places in 2007. Read more on Wikipedia
Source: en.wikipedia.org