Power line for tunnel on east side of coal canal, Waterworks Park, Detroit water supply system
Description:
View of power line for tunnel along east side of coal canal, Waterworks Park, Detroit water supply system. Printed on front: "City of Detroit. Department of Water Supply. Land tunnel and structures. Contract RC 12. Dravo Contracting Co., contractors. Photo no. 7. Date: 6-2-30. Photo by Manning Brothers." Typed on back: "View along east side of coal canal showing power line for supplying electric current to 14 ft. tunnel."