South heading of tunnel during construction, Waterworks Park, Detroit water supply system
Description:
View of south heading 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. 94. Date: 4-2-31. Photo by Manning Brothers." Typed on back: "14 ft. tunnel south heading view of reinforcing steel above springing line in the last 18 ft. of tunnel at screen chamber."