A photograph of the Southern Pacific wooden cupola caboose SP 690 in Burlingame, California. The photograph shows the newly painted caboose with orange ends.
SP 7321 East LAHOT passes Santa Fe train (lead locomotive numbered Santa Fe 3666) waiting for authority to enter and operate over Southern Pacific's mainline.
Robert L. Coe, sales manager of Union Electric Company, congratulated the price winners in the table-setting contest. From the left are Mrs. W. F. McLean, Mrs. James F. Williams, Mrs. Eugene F. Williams, who presented the awards; Mrs. Eugene A. Erker and Mrs. J. Edward Sommers.
R.V. Slaton, 2329 Virginia avenue, is shown being congratulated by City Judge George G. Vest after Slaton had shown his interest in the crusade against accidents by driving his automobile through the Globe-Democrat Safety Lane , and receiving the sticker of approval. Judge vest is pointing to the sticker of approval given all cars that pass the safety tests.
Maintenance of the ballast layer directly below the ties is an essential part of a healthy track structure, as ballast degrades over time and becomes increasingly fouled reducing its ability to drain, provide adequate load bearing support, and withstand vertical, lateral, and longitudinal forces. Southern Pacific used specially trained crews who operated undercutter equipment to restore ballast that had become fouled.
The excavated material could either be fully discarded or screened and returned to the track, with only the finer parts of the ballast not being recycled.