View of rock dike for the Detroit water supply system. Automobile in background. 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. 15. Date: 4-9-30. Photo by Manning Brothers." Typed on back: "Rock dike enclosing fill area along south side of fill being made by Dept. of Parks & Blvds. Rock is from the Livingstone Channel spoil bank and was placed over a year ago. View taken shortly below the Livingstone Memorial."
