Route 66 Bridge over the Chicago, Rock Island and Gulf Railroad

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.

It is a five-span, steel and concrete bridge, 125 ft long, with a 24 ft wide roadway in a 27 ft wide deck. Its main span is steel I-beams encased in concrete; the other spans are reinforced concrete girders supported by reinforced concrete pile bents.