South heading of tunnel during construction, Waterworks Park, Detroit water supply system
Grab
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. 95. 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."