Strange bedfellows: Motive power of sometime competitors Union Pacific and Chicago Burlington & Quincy occupy adjacent tracks at UP’s Pullman roundhouse in Denver on September 23, 1968. F-unit 531 has come in on the overnight freight from Kansas City. Chicago, Burlington & Quincy U28B 110 is down from North Platte, pool power on a UP manifest. Almost two decades separate these two units. The 2800-hp U-boat is less than two years old. The F-unit, one of UP’s first diesel freighters, was built two decades ago as a 1500-hp F3A, and in 1958 was rebuilt by EMD as a 1750-hp F9A (technically an F9AM). In four years, in anticipation of a merger (that will never happen), UP will sell the 531 to Chicago, Rock Island & Pacific, which will run then engine into the ground by 1974. The 110 will live on until August, 1986, as Burlington Northern 5454.
Photos of North America's favorite First Generation locomotives. EMD, ALCO, Baldwin; essentially anything that represents the OG wide cab diesel locomotive
