View of canal for the Detroit water supply system. Printed on front: "City of Detroit. Department of Water Supply. Intake system for additional supply. Intake lagoon. Contract RC-9. Dunbar & Sullivan Dredging Co., contractors. Photo no. 66. Date: 6-15-31. Photo by Manning Brothers." Typed on back: "Canal which connects to bridge near Sta. 1 + 00 W. roughed out by dragline Cuilene Rhue."
