Power line for tunnel on east side of coal canal, Waterworks Park, Detroit water supply system
Grab
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."