Box truss
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A box truss is a structure composed of three or more chords connected by transverse and/or diagonal structural elements.
A box truss structure in a bridge of the Southern Pacific Railroad in California
Southern Pacific Railroad
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The Southern Pacific was an American Class I railroad network that existed from 1865 to 1996 and operated largely in the Western United States. The system was operated by various companies under the n
SP #8912 leads a freight train in Palm Springs, California, in February 1981.
"Mr. Maguire's Stand on the Railroad Question," a caricature of Democratic gubernatorial candidate James G. Maguire published in the San Francisco Examiner depicting him triumphant over the political forces of the Southern Pacific, October 8, 1898
An EMD FP7 leads a Pacific Rail Society Special through Floriston, California, in February 1971.
SP 4449 underway, wearing the Daylight scheme (April 1981)