Workers posing in tunnel during construction, Waterworks Park, Detroit water supply system
Grab
Description
View of workers posing in 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. 116. Date: 5-22-31. Photo by Manning Brothers." Typed on back: "11 ft. tunnel. Excavating the last 12 ft. adjacent to bellmouth of auxiliary low lift plant. Note holes in bulkhead for blasting. Ends of the two needle beams rest on bulkhead."