Building the Canal to Save Chicago

Chapter 5 Photos, 1–23

(photos 24–45 here)

Rock Section

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Lake Claremont Press: A Chicago Joint

S. Woodhouse Books

BC-Photo 5.7

June 10, 1896. A steam powered channeling machine used to cut the face of the vertical rock wall before drilling and blasting the rock mass for excavation of the Main Channel. This machine cut a neat vertical trench a few inches wide and up to 16 feet deep. The trench prevents cracking of the vertical rock face of the wall when the rock is broken up using dynamite for removal. The rock wall face is to the left and the rock to be blasted and removed is to the right. (MWRD photo, disc 4126, image