Mike Mulligan and His Steam Shovel was a popular children's book first published in 1939. Pictured is a similar steam shovel digging a tunnel for the rapid transit and railroad lines near East 55th Street and Kinsman Road. Excavated materials from the construction of tunnels were often hauled to different locations along the railroad and transit lines to be used as fill material for grading operations. | Source: Shaker Historical Society / Wikimedia CommonsDownload Original File
