Photograph of the First Street Entrance to the Pacific Electric Subway Tunnel under construction between First Street and Glendale Boulevard, ca.1926. Smoke billows out of the smokestack of a back hoe as it moves soil in a depression dug out of the ground pictured at center. A man stands next to an early pickup truck situated beside it while a second pickup is just visible in the right foreground. Spectators watch the construction from the road above and to the left. A hill is visible in the background on which an automobile can be seen driving, and houses are situated.