Tunnel during construction, Waterworks Park, Detroit water supply system
Description:
View of tunnel during construction, 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. 118. Date: 5-23-31. Photo by Manning Brothers." Typed on back: "11 ft. tunnel at Sta. 1+15 showing timbering and the copper tubing carrying the wires from the Goldbeck cells placed between the concrete lining and the clay."