Piggybacked auto carriers

20190122

Transporting finished automobiles in boxcars was inefficient, causing railroads to lose business to highway carriers. Before the development of two- and three-level auto rack cars, railroads tried piggybacking highway trailers loaded with autos on flatcars. Here, a pair of carriers rides an 85-foot car in 1960. J. David Ingles collection […]

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Piggyback on the Prospector

20190116

Beginning in 1964, the Rio Grande began attaching a car or two of piggyback trailers to the rear of the Salt Lake City–Denver Prospector in order to boost the train’s bottom line, as seen here at East Rocky, Colo., in April 1964. Nevertheless, the train was discontinued in 1967. Richard Steinheimer photo […]

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