- Charter Way Railroad Underpass - Stockton CAStockton, California’s Charter Way railroad underpass was constructed with the aid of federal funds during the Great Depression. The underpass is still in use today. "At Charter Way, U. S, 50, crossed at grade a total of eight separate railroad tracks, one of the Western Pacific and seven of the Southern Pacific, all within a distance of five hundred feet. Design studies were made to determine the most satisfactory structure for the problems involved, which included the separation of the highway and eight railroad tracks and the maintenance of accessibility to adjoining improved property. To this end an undergrade...